--- /dev/null
+/*
+ * Linux syscalls
+ *
+ * Copyright (c) 2003 Fabrice Bellard
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#define _ATFILE_SOURCE
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include <elf.h>
+#include <endian.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <time.h>
+#include <limits.h>
+#include <grp.h>
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/msg.h>
+#include <sys/wait.h>
+#include <sys/time.h>
+#include <sys/stat.h>
+#include <sys/mount.h>
+#include <sys/file.h>
+#include <sys/fsuid.h>
+#include <sys/personality.h>
+#include <sys/prctl.h>
+#include <sys/resource.h>
+#include <sys/mman.h>
+#include <sys/swap.h>
+#include <linux/capability.h>
+#include <signal.h>
+#include <sched.h>
+#ifdef __ia64__
+int __clone2(int (*fn)(void *), void *child_stack_base,
+ size_t stack_size, int flags, void *arg, ...);
+#endif
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <sys/uio.h>
+#include <sys/poll.h>
+#include <sys/times.h>
+#include <sys/shm.h>
+#include <sys/sem.h>
+#include <sys/statfs.h>
+#include <utime.h>
+#include <sys/sysinfo.h>
+//#include <sys/user.h>
+#include <netinet/ip.h>
+#include <netinet/tcp.h>
+#include <linux/wireless.h>
+#include <linux/icmp.h>
+#include "qemu-common.h"
+#ifdef CONFIG_TIMERFD
+#include <sys/timerfd.h>
+#endif
+#ifdef TARGET_GPROF
+#include <sys/gmon.h>
+#endif
+#ifdef CONFIG_EVENTFD
+#include <sys/eventfd.h>
+#endif
+#ifdef CONFIG_EPOLL
+#include <sys/epoll.h>
+#endif
+#ifdef CONFIG_ATTR
+#include "qemu/xattr.h"
+#endif
+#ifdef CONFIG_SENDFILE
+#include <sys/sendfile.h>
+#endif
+
+#define termios host_termios
+#define winsize host_winsize
+#define termio host_termio
+#define sgttyb host_sgttyb /* same as target */
+#define tchars host_tchars /* same as target */
+#define ltchars host_ltchars /* same as target */
+
+#include <linux/termios.h>
+#include <linux/unistd.h>
+#include <linux/cdrom.h>
+#include <linux/hdreg.h>
+#include <linux/soundcard.h>
+#include <linux/kd.h>
+#include <linux/mtio.h>
+#include <linux/fs.h>
+#if defined(CONFIG_FIEMAP)
+#include <linux/fiemap.h>
+#endif
+#include <linux/fb.h>
+#include <linux/vt.h>
+#include <linux/dm-ioctl.h>
+#include <linux/reboot.h>
+#include <linux/route.h>
+#include <linux/filter.h>
+#include <linux/blkpg.h>
+#include "linux_loop.h"
+#include "uname.h"
+
+#include "qemu.h"
+
+#define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \
+ CLONE_PARENT_SETTID | CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)
+
+//#define DEBUG
+
+//#include <linux/msdos_fs.h>
+#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2])
+#define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2])
+
+
+#undef _syscall0
+#undef _syscall1
+#undef _syscall2
+#undef _syscall3
+#undef _syscall4
+#undef _syscall5
+#undef _syscall6
+
+#define _syscall0(type,name) \
+static type name (void) \
+{ \
+ return syscall(__NR_##name); \
+}
+
+#define _syscall1(type,name,type1,arg1) \
+static type name (type1 arg1) \
+{ \
+ return syscall(__NR_##name, arg1); \
+}
+
+#define _syscall2(type,name,type1,arg1,type2,arg2) \
+static type name (type1 arg1,type2 arg2) \
+{ \
+ return syscall(__NR_##name, arg1, arg2); \
+}
+
+#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
+static type name (type1 arg1,type2 arg2,type3 arg3) \
+{ \
+ return syscall(__NR_##name, arg1, arg2, arg3); \
+}
+
+#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
+static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
+{ \
+ return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
+}
+
+#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
+ type5,arg5) \
+static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
+{ \
+ return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
+}
+
+
+#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
+ type5,arg5,type6,arg6) \
+static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
+ type6 arg6) \
+{ \
+ return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
+}
+
+
+#define __NR_sys_uname __NR_uname
+#define __NR_sys_getcwd1 __NR_getcwd
+#define __NR_sys_getdents __NR_getdents
+#define __NR_sys_getdents64 __NR_getdents64
+#define __NR_sys_getpriority __NR_getpriority
+#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
+#define __NR_sys_syslog __NR_syslog
+#define __NR_sys_tgkill __NR_tgkill
+#define __NR_sys_tkill __NR_tkill
+#define __NR_sys_futex __NR_futex
+#define __NR_sys_inotify_init __NR_inotify_init
+#define __NR_sys_inotify_add_watch __NR_inotify_add_watch
+#define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch
+
+#if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) || \
+ defined(__s390x__)
+#define __NR__llseek __NR_lseek
+#endif
+
+/* Newer kernel ports have llseek() instead of _llseek() */
+#if defined(TARGET_NR_llseek) && !defined(TARGET_NR__llseek)
+#define TARGET_NR__llseek TARGET_NR_llseek
+#endif
+
+#ifdef __NR_gettid
+_syscall0(int, gettid)
+#else
+/* This is a replacement for the host gettid() and must return a host
+ errno. */
+static int gettid(void) {
+ return -ENOSYS;
+}
+#endif
+#ifdef __NR_getdents
+_syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count);
+#endif
+#if !defined(__NR_getdents) || \
+ (defined(TARGET_NR_getdents64) && defined(__NR_getdents64))
+_syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count);
+#endif
+#if defined(TARGET_NR__llseek) && defined(__NR_llseek)
+_syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
+ loff_t *, res, uint, wh);
+#endif
+_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
+_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
+#if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
+_syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig)
+#endif
+#if defined(TARGET_NR_tkill) && defined(__NR_tkill)
+_syscall2(int,sys_tkill,int,tid,int,sig)
+#endif
+#ifdef __NR_exit_group
+_syscall1(int,exit_group,int,error_code)
+#endif
+#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
+_syscall1(int,set_tid_address,int *,tidptr)
+#endif
+#if defined(TARGET_NR_futex) && defined(__NR_futex)
+_syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
+ const struct timespec *,timeout,int *,uaddr2,int,val3)
+#endif
+#define __NR_sys_sched_getaffinity __NR_sched_getaffinity
+_syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len,
+ unsigned long *, user_mask_ptr);
+#define __NR_sys_sched_setaffinity __NR_sched_setaffinity
+_syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len,
+ unsigned long *, user_mask_ptr);
+_syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd,
+ void *, arg);
+_syscall2(int, capget, struct __user_cap_header_struct *, header,
+ struct __user_cap_data_struct *, data);
+_syscall2(int, capset, struct __user_cap_header_struct *, header,
+ struct __user_cap_data_struct *, data);
+#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
+_syscall2(int, ioprio_get, int, which, int, who)
+#endif
+#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
+_syscall3(int, ioprio_set, int, which, int, who, int, ioprio)
+#endif
+
+static bitmask_transtbl fcntl_flags_tbl[] = {
+ { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
+ { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
+ { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
+ { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
+ { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
+ { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
+ { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
+ { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
+ { TARGET_O_SYNC, TARGET_O_DSYNC, O_SYNC, O_DSYNC, },
+ { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
+ { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
+ { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
+ { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
+#if defined(O_DIRECT)
+ { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
+#endif
+#if defined(O_NOATIME)
+ { TARGET_O_NOATIME, TARGET_O_NOATIME, O_NOATIME, O_NOATIME },
+#endif
+#if defined(O_CLOEXEC)
+ { TARGET_O_CLOEXEC, TARGET_O_CLOEXEC, O_CLOEXEC, O_CLOEXEC },
+#endif
+#if defined(O_PATH)
+ { TARGET_O_PATH, TARGET_O_PATH, O_PATH, O_PATH },
+#endif
+ /* Don't terminate the list prematurely on 64-bit host+guest. */
+#if TARGET_O_LARGEFILE != 0 || O_LARGEFILE != 0
+ { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
+#endif
+ { 0, 0, 0, 0 }
+};
+
+static int sys_getcwd1(char *buf, size_t size)
+{
+ if (getcwd(buf, size) == NULL) {
+ /* getcwd() sets errno */
+ return (-1);
+ }
+ return strlen(buf)+1;
+}
+
+static int sys_openat(int dirfd, const char *pathname, int flags, mode_t mode)
+{
+ /*
+ * open(2) has extra parameter 'mode' when called with
+ * flag O_CREAT.
+ */
+ if ((flags & O_CREAT) != 0) {
+ return (openat(dirfd, pathname, flags, mode));
+ }
+ return (openat(dirfd, pathname, flags));
+}
+
+#ifdef TARGET_NR_utimensat
+#ifdef CONFIG_UTIMENSAT
+static int sys_utimensat(int dirfd, const char *pathname,
+ const struct timespec times[2], int flags)
+{
+ if (pathname == NULL)
+ return futimens(dirfd, times);
+ else
+ return utimensat(dirfd, pathname, times, flags);
+}
+#elif defined(__NR_utimensat)
+#define __NR_sys_utimensat __NR_utimensat
+_syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
+ const struct timespec *,tsp,int,flags)
+#else
+static int sys_utimensat(int dirfd, const char *pathname,
+ const struct timespec times[2], int flags)
+{
+ errno = ENOSYS;
+ return -1;
+}
+#endif
+#endif /* TARGET_NR_utimensat */
+
+#ifdef CONFIG_INOTIFY
+#include <sys/inotify.h>
+
+#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
+static int sys_inotify_init(void)
+{
+ return (inotify_init());
+}
+#endif
+#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
+static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask)
+{
+ return (inotify_add_watch(fd, pathname, mask));
+}
+#endif
+#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
+static int sys_inotify_rm_watch(int fd, int32_t wd)
+{
+ return (inotify_rm_watch(fd, wd));
+}
+#endif
+#ifdef CONFIG_INOTIFY1
+#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
+static int sys_inotify_init1(int flags)
+{
+ return (inotify_init1(flags));
+}
+#endif
+#endif
+#else
+/* Userspace can usually survive runtime without inotify */
+#undef TARGET_NR_inotify_init
+#undef TARGET_NR_inotify_init1
+#undef TARGET_NR_inotify_add_watch
+#undef TARGET_NR_inotify_rm_watch
+#endif /* CONFIG_INOTIFY */
+
+#if defined(TARGET_NR_ppoll)
+#ifndef __NR_ppoll
+# define __NR_ppoll -1
+#endif
+#define __NR_sys_ppoll __NR_ppoll
+_syscall5(int, sys_ppoll, struct pollfd *, fds, nfds_t, nfds,
+ struct timespec *, timeout, const sigset_t *, sigmask,
+ size_t, sigsetsize)
+#endif
+
+#if defined(TARGET_NR_pselect6)
+#ifndef __NR_pselect6
+# define __NR_pselect6 -1
+#endif
+#define __NR_sys_pselect6 __NR_pselect6
+_syscall6(int, sys_pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds,
+ fd_set *, exceptfds, struct timespec *, timeout, void *, sig);
+#endif
+
+#if defined(TARGET_NR_prlimit64)
+#ifndef __NR_prlimit64
+# define __NR_prlimit64 -1
+#endif
+#define __NR_sys_prlimit64 __NR_prlimit64
+/* The glibc rlimit structure may not be that used by the underlying syscall */
+struct host_rlimit64 {
+ uint64_t rlim_cur;
+ uint64_t rlim_max;
+};
+_syscall4(int, sys_prlimit64, pid_t, pid, int, resource,
+ const struct host_rlimit64 *, new_limit,
+ struct host_rlimit64 *, old_limit)
+#endif
+
+
+#if defined(TARGET_NR_timer_create)
+/* Maxiumum of 32 active POSIX timers allowed at any one time. */
+static timer_t g_posix_timers[32] = { 0, } ;
+
+static inline int next_free_host_timer(void)
+{
+ int k ;
+ /* FIXME: Does finding the next free slot require a lock? */
+ for (k = 0; k < ARRAY_SIZE(g_posix_timers); k++) {
+ if (g_posix_timers[k] == 0) {
+ g_posix_timers[k] = (timer_t) 1;
+ return k;
+ }
+ }
+ return -1;
+}
+#endif
+
+/* ARM EABI and MIPS expect 64bit types aligned even on pairs or registers */
+#ifdef TARGET_ARM
+static inline int regpairs_aligned(void *cpu_env) {
+ return ((((CPUARMState *)cpu_env)->eabi) == 1) ;
+}
+#elif defined(TARGET_MIPS)
+static inline int regpairs_aligned(void *cpu_env) { return 1; }
+#elif defined(TARGET_PPC) && !defined(TARGET_PPC64)
+/* SysV AVI for PPC32 expects 64bit parameters to be passed on odd/even pairs
+ * of registers which translates to the same as ARM/MIPS, because we start with
+ * r3 as arg1 */
+static inline int regpairs_aligned(void *cpu_env) { return 1; }
+#else
+static inline int regpairs_aligned(void *cpu_env) { return 0; }
+#endif
+
+#define ERRNO_TABLE_SIZE 1200
+
+/* target_to_host_errno_table[] is initialized from
+ * host_to_target_errno_table[] in syscall_init(). */
+static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
+};
+
+/*
+ * This list is the union of errno values overridden in asm-<arch>/errno.h
+ * minus the errnos that are not actually generic to all archs.
+ */
+static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
+ [EIDRM] = TARGET_EIDRM,
+ [ECHRNG] = TARGET_ECHRNG,
+ [EL2NSYNC] = TARGET_EL2NSYNC,
+ [EL3HLT] = TARGET_EL3HLT,
+ [EL3RST] = TARGET_EL3RST,
+ [ELNRNG] = TARGET_ELNRNG,
+ [EUNATCH] = TARGET_EUNATCH,
+ [ENOCSI] = TARGET_ENOCSI,
+ [EL2HLT] = TARGET_EL2HLT,
+ [EDEADLK] = TARGET_EDEADLK,
+ [ENOLCK] = TARGET_ENOLCK,
+ [EBADE] = TARGET_EBADE,
+ [EBADR] = TARGET_EBADR,
+ [EXFULL] = TARGET_EXFULL,
+ [ENOANO] = TARGET_ENOANO,
+ [EBADRQC] = TARGET_EBADRQC,
+ [EBADSLT] = TARGET_EBADSLT,
+ [EBFONT] = TARGET_EBFONT,
+ [ENOSTR] = TARGET_ENOSTR,
+ [ENODATA] = TARGET_ENODATA,
+ [ETIME] = TARGET_ETIME,
+ [ENOSR] = TARGET_ENOSR,
+ [ENONET] = TARGET_ENONET,
+ [ENOPKG] = TARGET_ENOPKG,
+ [EREMOTE] = TARGET_EREMOTE,
+ [ENOLINK] = TARGET_ENOLINK,
+ [EADV] = TARGET_EADV,
+ [ESRMNT] = TARGET_ESRMNT,
+ [ECOMM] = TARGET_ECOMM,
+ [EPROTO] = TARGET_EPROTO,
+ [EDOTDOT] = TARGET_EDOTDOT,
+ [EMULTIHOP] = TARGET_EMULTIHOP,
+ [EBADMSG] = TARGET_EBADMSG,
+ [ENAMETOOLONG] = TARGET_ENAMETOOLONG,
+ [EOVERFLOW] = TARGET_EOVERFLOW,
+ [ENOTUNIQ] = TARGET_ENOTUNIQ,
+ [EBADFD] = TARGET_EBADFD,
+ [EREMCHG] = TARGET_EREMCHG,
+ [ELIBACC] = TARGET_ELIBACC,
+ [ELIBBAD] = TARGET_ELIBBAD,
+ [ELIBSCN] = TARGET_ELIBSCN,
+ [ELIBMAX] = TARGET_ELIBMAX,
+ [ELIBEXEC] = TARGET_ELIBEXEC,
+ [EILSEQ] = TARGET_EILSEQ,
+ [ENOSYS] = TARGET_ENOSYS,
+ [ELOOP] = TARGET_ELOOP,
+ [ERESTART] = TARGET_ERESTART,
+ [ESTRPIPE] = TARGET_ESTRPIPE,
+ [ENOTEMPTY] = TARGET_ENOTEMPTY,
+ [EUSERS] = TARGET_EUSERS,
+ [ENOTSOCK] = TARGET_ENOTSOCK,
+ [EDESTADDRREQ] = TARGET_EDESTADDRREQ,
+ [EMSGSIZE] = TARGET_EMSGSIZE,
+ [EPROTOTYPE] = TARGET_EPROTOTYPE,
+ [ENOPROTOOPT] = TARGET_ENOPROTOOPT,
+ [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT,
+ [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT,
+ [EOPNOTSUPP] = TARGET_EOPNOTSUPP,
+ [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT,
+ [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT,
+ [EADDRINUSE] = TARGET_EADDRINUSE,
+ [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL,
+ [ENETDOWN] = TARGET_ENETDOWN,
+ [ENETUNREACH] = TARGET_ENETUNREACH,
+ [ENETRESET] = TARGET_ENETRESET,
+ [ECONNABORTED] = TARGET_ECONNABORTED,
+ [ECONNRESET] = TARGET_ECONNRESET,
+ [ENOBUFS] = TARGET_ENOBUFS,
+ [EISCONN] = TARGET_EISCONN,
+ [ENOTCONN] = TARGET_ENOTCONN,
+ [EUCLEAN] = TARGET_EUCLEAN,
+ [ENOTNAM] = TARGET_ENOTNAM,
+ [ENAVAIL] = TARGET_ENAVAIL,
+ [EISNAM] = TARGET_EISNAM,
+ [EREMOTEIO] = TARGET_EREMOTEIO,
+ [ESHUTDOWN] = TARGET_ESHUTDOWN,
+ [ETOOMANYREFS] = TARGET_ETOOMANYREFS,
+ [ETIMEDOUT] = TARGET_ETIMEDOUT,
+ [ECONNREFUSED] = TARGET_ECONNREFUSED,
+ [EHOSTDOWN] = TARGET_EHOSTDOWN,
+ [EHOSTUNREACH] = TARGET_EHOSTUNREACH,
+ [EALREADY] = TARGET_EALREADY,
+ [EINPROGRESS] = TARGET_EINPROGRESS,
+ [ESTALE] = TARGET_ESTALE,
+ [ECANCELED] = TARGET_ECANCELED,
+ [ENOMEDIUM] = TARGET_ENOMEDIUM,
+ [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE,
+#ifdef ENOKEY
+ [ENOKEY] = TARGET_ENOKEY,
+#endif
+#ifdef EKEYEXPIRED
+ [EKEYEXPIRED] = TARGET_EKEYEXPIRED,
+#endif
+#ifdef EKEYREVOKED
+ [EKEYREVOKED] = TARGET_EKEYREVOKED,
+#endif
+#ifdef EKEYREJECTED
+ [EKEYREJECTED] = TARGET_EKEYREJECTED,
+#endif
+#ifdef EOWNERDEAD
+ [EOWNERDEAD] = TARGET_EOWNERDEAD,
+#endif
+#ifdef ENOTRECOVERABLE
+ [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE,
+#endif
+};
+
+static inline int host_to_target_errno(int err)
+{
+ if(host_to_target_errno_table[err])
+ return host_to_target_errno_table[err];
+ return err;
+}
+
+static inline int target_to_host_errno(int err)
+{
+ if (target_to_host_errno_table[err])
+ return target_to_host_errno_table[err];
+ return err;
+}
+
+static inline abi_long get_errno(abi_long ret)
+{
+ if (ret == -1)
+ return -host_to_target_errno(errno);
+ else
+ return ret;
+}
+
+static inline int is_error(abi_long ret)
+{
+ return (abi_ulong)ret >= (abi_ulong)(-4096);
+}
+
+char *target_strerror(int err)
+{
+ if ((err >= ERRNO_TABLE_SIZE) || (err < 0)) {
+ return NULL;
+ }
+ return strerror(target_to_host_errno(err));
+}
+
+static inline int host_to_target_sock_type(int host_type)
+{
+ int target_type;
+
+ switch (host_type & 0xf /* SOCK_TYPE_MASK */) {
+ case SOCK_DGRAM:
+ target_type = TARGET_SOCK_DGRAM;
+ break;
+ case SOCK_STREAM:
+ target_type = TARGET_SOCK_STREAM;
+ break;
+ default:
+ target_type = host_type & 0xf /* SOCK_TYPE_MASK */;
+ break;
+ }
+
+#if defined(SOCK_CLOEXEC)
+ if (host_type & SOCK_CLOEXEC) {
+ target_type |= TARGET_SOCK_CLOEXEC;
+ }
+#endif
+
+#if defined(SOCK_NONBLOCK)
+ if (host_type & SOCK_NONBLOCK) {
+ target_type |= TARGET_SOCK_NONBLOCK;
+ }
+#endif
+
+ return target_type;
+}
+
+static abi_ulong target_brk;
+static abi_ulong target_original_brk;
+static abi_ulong brk_page;
+
+void target_set_brk(abi_ulong new_brk)
+{
+ target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
+ brk_page = HOST_PAGE_ALIGN(target_brk);
+}
+
+//#define DEBUGF_BRK(message, args...) do { fprintf(stderr, (message), ## args); } while (0)
+#define DEBUGF_BRK(message, args...)
+
+/* do_brk() must return target values and target errnos. */
+abi_long do_brk(abi_ulong new_brk)
+{
+ abi_long mapped_addr;
+ int new_alloc_size;
+
+ DEBUGF_BRK("do_brk(" TARGET_ABI_FMT_lx ") -> ", new_brk);
+
+ if (!new_brk) {
+ DEBUGF_BRK(TARGET_ABI_FMT_lx " (!new_brk)\n", target_brk);
+ return target_brk;
+ }
+ if (new_brk < target_original_brk) {
+ DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk < target_original_brk)\n",
+ target_brk);
+ return target_brk;
+ }
+
+ /* If the new brk is less than the highest page reserved to the
+ * target heap allocation, set it and we're almost done... */
+ if (new_brk <= brk_page) {
+ /* Heap contents are initialized to zero, as for anonymous
+ * mapped pages. */
+ if (new_brk > target_brk) {
+ memset(g2h(target_brk), 0, new_brk - target_brk);
+ }
+ target_brk = new_brk;
+ DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk <= brk_page)\n", target_brk);
+ return target_brk;
+ }
+
+ /* We need to allocate more memory after the brk... Note that
+ * we don't use MAP_FIXED because that will map over the top of
+ * any existing mapping (like the one with the host libc or qemu
+ * itself); instead we treat "mapped but at wrong address" as
+ * a failure and unmap again.
+ */
+ new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page);
+ mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
+ PROT_READ|PROT_WRITE,
+ MAP_ANON|MAP_PRIVATE, 0, 0));
+
+ if (mapped_addr == brk_page) {
+ /* Heap contents are initialized to zero, as for anonymous
+ * mapped pages. Technically the new pages are already
+ * initialized to zero since they *are* anonymous mapped
+ * pages, however we have to take care with the contents that
+ * come from the remaining part of the previous page: it may
+ * contains garbage data due to a previous heap usage (grown
+ * then shrunken). */
+ memset(g2h(target_brk), 0, brk_page - target_brk);
+
+ target_brk = new_brk;
+ brk_page = HOST_PAGE_ALIGN(target_brk);
+ DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr == brk_page)\n",
+ target_brk);
+ return target_brk;
+ } else if (mapped_addr != -1) {
+ /* Mapped but at wrong address, meaning there wasn't actually
+ * enough space for this brk.
+ */
+ target_munmap(mapped_addr, new_alloc_size);
+ mapped_addr = -1;
+ DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr != -1)\n", target_brk);
+ }
+ else {
+ DEBUGF_BRK(TARGET_ABI_FMT_lx " (otherwise)\n", target_brk);
+ }
+
+#if defined(TARGET_ALPHA)
+ /* We (partially) emulate OSF/1 on Alpha, which requires we
+ return a proper errno, not an unchanged brk value. */
+ return -TARGET_ENOMEM;
+#endif
+ /* For everything else, return the previous break. */
+ return target_brk;
+}
+
+static inline abi_long copy_from_user_fdset(fd_set *fds,
+ abi_ulong target_fds_addr,
+ int n)
+{
+ int i, nw, j, k;
+ abi_ulong b, *target_fds;
+
+ nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
+ if (!(target_fds = lock_user(VERIFY_READ,
+ target_fds_addr,
+ sizeof(abi_ulong) * nw,
+ 1)))
+ return -TARGET_EFAULT;
+
+ FD_ZERO(fds);
+ k = 0;
+ for (i = 0; i < nw; i++) {
+ /* grab the abi_ulong */
+ __get_user(b, &target_fds[i]);
+ for (j = 0; j < TARGET_ABI_BITS; j++) {
+ /* check the bit inside the abi_ulong */
+ if ((b >> j) & 1)
+ FD_SET(k, fds);
+ k++;
+ }
+ }
+
+ unlock_user(target_fds, target_fds_addr, 0);
+
+ return 0;
+}
+
+static inline abi_ulong copy_from_user_fdset_ptr(fd_set *fds, fd_set **fds_ptr,
+ abi_ulong target_fds_addr,
+ int n)
+{
+ if (target_fds_addr) {
+ if (copy_from_user_fdset(fds, target_fds_addr, n))
+ return -TARGET_EFAULT;
+ *fds_ptr = fds;
+ } else {
+ *fds_ptr = NULL;
+ }
+ return 0;
+}
+
+static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
+ const fd_set *fds,
+ int n)
+{
+ int i, nw, j, k;
+ abi_long v;
+ abi_ulong *target_fds;
+
+ nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
+ if (!(target_fds = lock_user(VERIFY_WRITE,
+ target_fds_addr,
+ sizeof(abi_ulong) * nw,
+ 0)))
+ return -TARGET_EFAULT;
+
+ k = 0;
+ for (i = 0; i < nw; i++) {
+ v = 0;
+ for (j = 0; j < TARGET_ABI_BITS; j++) {
+ v |= ((abi_ulong)(FD_ISSET(k, fds) != 0) << j);
+ k++;
+ }
+ __put_user(v, &target_fds[i]);
+ }
+
+ unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
+
+ return 0;
+}
+
+#if defined(__alpha__)
+#define HOST_HZ 1024
+#else
+#define HOST_HZ 100
+#endif
+
+static inline abi_long host_to_target_clock_t(long ticks)
+{
+#if HOST_HZ == TARGET_HZ
+ return ticks;
+#else
+ return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
+#endif
+}
+
+static inline abi_long host_to_target_rusage(abi_ulong target_addr,
+ const struct rusage *rusage)
+{
+ struct target_rusage *target_rusage;
+
+ if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
+ return -TARGET_EFAULT;
+ target_rusage->ru_utime.tv_sec = tswapal(rusage->ru_utime.tv_sec);
+ target_rusage->ru_utime.tv_usec = tswapal(rusage->ru_utime.tv_usec);
+ target_rusage->ru_stime.tv_sec = tswapal(rusage->ru_stime.tv_sec);
+ target_rusage->ru_stime.tv_usec = tswapal(rusage->ru_stime.tv_usec);
+ target_rusage->ru_maxrss = tswapal(rusage->ru_maxrss);
+ target_rusage->ru_ixrss = tswapal(rusage->ru_ixrss);
+ target_rusage->ru_idrss = tswapal(rusage->ru_idrss);
+ target_rusage->ru_isrss = tswapal(rusage->ru_isrss);
+ target_rusage->ru_minflt = tswapal(rusage->ru_minflt);
+ target_rusage->ru_majflt = tswapal(rusage->ru_majflt);
+ target_rusage->ru_nswap = tswapal(rusage->ru_nswap);
+ target_rusage->ru_inblock = tswapal(rusage->ru_inblock);
+ target_rusage->ru_oublock = tswapal(rusage->ru_oublock);
+ target_rusage->ru_msgsnd = tswapal(rusage->ru_msgsnd);
+ target_rusage->ru_msgrcv = tswapal(rusage->ru_msgrcv);
+ target_rusage->ru_nsignals = tswapal(rusage->ru_nsignals);
+ target_rusage->ru_nvcsw = tswapal(rusage->ru_nvcsw);
+ target_rusage->ru_nivcsw = tswapal(rusage->ru_nivcsw);
+ unlock_user_struct(target_rusage, target_addr, 1);
+
+ return 0;
+}
+
+static inline rlim_t target_to_host_rlim(abi_ulong target_rlim)
+{
+ abi_ulong target_rlim_swap;
+ rlim_t result;
+
+ target_rlim_swap = tswapal(target_rlim);
+ if (target_rlim_swap == TARGET_RLIM_INFINITY)
+ return RLIM_INFINITY;
+
+ result = target_rlim_swap;
+ if (target_rlim_swap != (rlim_t)result)
+ return RLIM_INFINITY;
+
+ return result;
+}
+
+static inline abi_ulong host_to_target_rlim(rlim_t rlim)
+{
+ abi_ulong target_rlim_swap;
+ abi_ulong result;
+
+ if (rlim == RLIM_INFINITY || rlim != (abi_long)rlim)
+ target_rlim_swap = TARGET_RLIM_INFINITY;
+ else
+ target_rlim_swap = rlim;
+ result = tswapal(target_rlim_swap);
+
+ return result;
+}
+
+static inline int target_to_host_resource(int code)
+{
+ switch (code) {
+ case TARGET_RLIMIT_AS:
+ return RLIMIT_AS;
+ case TARGET_RLIMIT_CORE:
+ return RLIMIT_CORE;
+ case TARGET_RLIMIT_CPU:
+ return RLIMIT_CPU;
+ case TARGET_RLIMIT_DATA:
+ return RLIMIT_DATA;
+ case TARGET_RLIMIT_FSIZE:
+ return RLIMIT_FSIZE;
+ case TARGET_RLIMIT_LOCKS:
+ return RLIMIT_LOCKS;
+ case TARGET_RLIMIT_MEMLOCK:
+ return RLIMIT_MEMLOCK;
+ case TARGET_RLIMIT_MSGQUEUE:
+ return RLIMIT_MSGQUEUE;
+ case TARGET_RLIMIT_NICE:
+ return RLIMIT_NICE;
+ case TARGET_RLIMIT_NOFILE:
+ return RLIMIT_NOFILE;
+ case TARGET_RLIMIT_NPROC:
+ return RLIMIT_NPROC;
+ case TARGET_RLIMIT_RSS:
+ return RLIMIT_RSS;
+ case TARGET_RLIMIT_RTPRIO:
+ return RLIMIT_RTPRIO;
+ case TARGET_RLIMIT_SIGPENDING:
+ return RLIMIT_SIGPENDING;
+ case TARGET_RLIMIT_STACK:
+ return RLIMIT_STACK;
+ default:
+ return code;
+ }
+}
+
+static inline abi_long copy_from_user_timeval(struct timeval *tv,
+ abi_ulong target_tv_addr)
+{
+ struct target_timeval *target_tv;
+
+ if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1))
+ return -TARGET_EFAULT;
+
+ __get_user(tv->tv_sec, &target_tv->tv_sec);
+ __get_user(tv->tv_usec, &target_tv->tv_usec);
+
+ unlock_user_struct(target_tv, target_tv_addr, 0);
+
+ return 0;
+}
+
+static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
+ const struct timeval *tv)
+{
+ struct target_timeval *target_tv;
+
+ if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0))
+ return -TARGET_EFAULT;
+
+ __put_user(tv->tv_sec, &target_tv->tv_sec);
+ __put_user(tv->tv_usec, &target_tv->tv_usec);
+
+ unlock_user_struct(target_tv, target_tv_addr, 1);
+
+ return 0;
+}
+
+static inline abi_long copy_from_user_timezone(struct timezone *tz,
+ abi_ulong target_tz_addr)
+{
+ struct target_timezone *target_tz;
+
+ if (!lock_user_struct(VERIFY_READ, target_tz, target_tz_addr, 1)) {
+ return -TARGET_EFAULT;
+ }
+
+ __get_user(tz->tz_minuteswest, &target_tz->tz_minuteswest);
+ __get_user(tz->tz_dsttime, &target_tz->tz_dsttime);
+
+ unlock_user_struct(target_tz, target_tz_addr, 0);
+
+ return 0;
+}
+
+#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
+#include <mqueue.h>
+
+static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr,
+ abi_ulong target_mq_attr_addr)
+{
+ struct target_mq_attr *target_mq_attr;
+
+ if (!lock_user_struct(VERIFY_READ, target_mq_attr,
+ target_mq_attr_addr, 1))
+ return -TARGET_EFAULT;
+
+ __get_user(attr->mq_flags, &target_mq_attr->mq_flags);
+ __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
+ __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
+ __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
+
+ unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0);
+
+ return 0;
+}
+
+static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr,
+ const struct mq_attr *attr)
+{
+ struct target_mq_attr *target_mq_attr;
+
+ if (!lock_user_struct(VERIFY_WRITE, target_mq_attr,
+ target_mq_attr_addr, 0))
+ return -TARGET_EFAULT;
+
+ __put_user(attr->mq_flags, &target_mq_attr->mq_flags);
+ __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
+ __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
+ __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
+
+ unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1);
+
+ return 0;
+}
+#endif
+
+#if defined(TARGET_NR_select) || defined(TARGET_NR__newselect)
+/* do_select() must return target values and target errnos. */
+static abi_long do_select(int n,
+ abi_ulong rfd_addr, abi_ulong wfd_addr,
+ abi_ulong efd_addr, abi_ulong target_tv_addr)
+{
+ fd_set rfds, wfds, efds;
+ fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
+ struct timeval tv, *tv_ptr;
+ abi_long ret;
+
+ ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
+ if (ret) {
+ return ret;
+ }
+ ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
+ if (ret) {
+ return ret;
+ }
+ ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
+ if (ret) {
+ return ret;
+ }
+
+ if (target_tv_addr) {
+ if (copy_from_user_timeval(&tv, target_tv_addr))
+ return -TARGET_EFAULT;
+ tv_ptr = &tv;
+ } else {
+ tv_ptr = NULL;
+ }
+
+ ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
+
+ if (!is_error(ret)) {
+ if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
+ return -TARGET_EFAULT;
+ if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
+ return -TARGET_EFAULT;
+ if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
+ return -TARGET_EFAULT;
+
+ if (target_tv_addr && copy_to_user_timeval(target_tv_addr, &tv))
+ return -TARGET_EFAULT;
+ }
+
+ return ret;
+}
+#endif
+
+static abi_long do_pipe2(int host_pipe[], int flags)
+{
+#ifdef CONFIG_PIPE2
+ return pipe2(host_pipe, flags);
+#else
+ return -ENOSYS;
+#endif
+}
+
+static abi_long do_pipe(void *cpu_env, abi_ulong pipedes,
+ int flags, int is_pipe2)
+{
+ int host_pipe[2];
+ abi_long ret;
+ ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe);
+
+ if (is_error(ret))
+ return get_errno(ret);
+
+ /* Several targets have special calling conventions for the original
+ pipe syscall, but didn't replicate this into the pipe2 syscall. */
+ if (!is_pipe2) {
+#if defined(TARGET_ALPHA)
+ ((CPUAlphaState *)cpu_env)->ir[IR_A4] = host_pipe[1];
+ return host_pipe[0];
+#elif defined(TARGET_MIPS)
+ ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1];
+ return host_pipe[0];
+#elif defined(TARGET_SH4)
+ ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1];
+ return host_pipe[0];
+#elif defined(TARGET_SPARC)
+ ((CPUSPARCState*)cpu_env)->regwptr[1] = host_pipe[1];
+ return host_pipe[0];
+#endif
+ }
+
+ if (put_user_s32(host_pipe[0], pipedes)
+ || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0])))
+ return -TARGET_EFAULT;
+ return get_errno(ret);
+}
+
+static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
+ abi_ulong target_addr,
+ socklen_t len)
+{
+ struct target_ip_mreqn *target_smreqn;
+
+ target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
+ if (!target_smreqn)
+ return -TARGET_EFAULT;
+ mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
+ mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
+ if (len == sizeof(struct target_ip_mreqn))
+ mreqn->imr_ifindex = tswapal(target_smreqn->imr_ifindex);
+ unlock_user(target_smreqn, target_addr, 0);
+
+ return 0;
+}
+
+static inline abi_long target_to_host_sockaddr(struct sockaddr *addr,
+ abi_ulong target_addr,
+ socklen_t len)
+{
+ const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
+ sa_family_t sa_family;
+ struct target_sockaddr *target_saddr;
+
+ target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
+ if (!target_saddr)
+ return -TARGET_EFAULT;
+
+ sa_family = tswap16(target_saddr->sa_family);
+
+ /* Oops. The caller might send a incomplete sun_path; sun_path
+ * must be terminated by \0 (see the manual page), but
+ * unfortunately it is quite common to specify sockaddr_un
+ * length as "strlen(x->sun_path)" while it should be
+ * "strlen(...) + 1". We'll fix that here if needed.
+ * Linux kernel has a similar feature.
+ */
+
+ if (sa_family == AF_UNIX) {
+ if (len < unix_maxlen && len > 0) {
+ char *cp = (char*)target_saddr;
+
+ if ( cp[len-1] && !cp[len] )
+ len++;
+ }
+ if (len > unix_maxlen)
+ len = unix_maxlen;
+ }
+
+ memcpy(addr, target_saddr, len);
+ addr->sa_family = sa_family;
+ if (sa_family == AF_PACKET) {
+ struct target_sockaddr_ll *lladdr;
+
+ lladdr = (struct target_sockaddr_ll *)addr;
+ lladdr->sll_ifindex = tswap32(lladdr->sll_ifindex);
+ lladdr->sll_hatype = tswap16(lladdr->sll_hatype);
+ }
+ unlock_user(target_saddr, target_addr, 0);
+
+ return 0;
+}
+
+static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
+ struct sockaddr *addr,
+ socklen_t len)
+{
+ struct target_sockaddr *target_saddr;
+
+ target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
+ if (!target_saddr)
+ return -TARGET_EFAULT;
+ memcpy(target_saddr, addr, len);
+ target_saddr->sa_family = tswap16(addr->sa_family);
+ unlock_user(target_saddr, target_addr, len);
+
+ return 0;
+}
+
+static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
+ struct target_msghdr *target_msgh)
+{
+ struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
+ abi_long msg_controllen;
+ abi_ulong target_cmsg_addr;
+ struct target_cmsghdr *target_cmsg;
+ socklen_t space = 0;
+
+ msg_controllen = tswapal(target_msgh->msg_controllen);
+ if (msg_controllen < sizeof (struct target_cmsghdr))
+ goto the_end;
+ target_cmsg_addr = tswapal(target_msgh->msg_control);
+ target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
+ if (!target_cmsg)
+ return -TARGET_EFAULT;
+
+ while (cmsg && target_cmsg) {
+ void *data = CMSG_DATA(cmsg);
+ void *target_data = TARGET_CMSG_DATA(target_cmsg);
+
+ int len = tswapal(target_cmsg->cmsg_len)
+ - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
+
+ space += CMSG_SPACE(len);
+ if (space > msgh->msg_controllen) {
+ space -= CMSG_SPACE(len);
+ /* This is a QEMU bug, since we allocated the payload
+ * area ourselves (unlike overflow in host-to-target
+ * conversion, which is just the guest giving us a buffer
+ * that's too small). It can't happen for the payload types
+ * we currently support; if it becomes an issue in future
+ * we would need to improve our allocation strategy to
+ * something more intelligent than "twice the size of the
+ * target buffer we're reading from".
+ */
+ gemu_log("Host cmsg overflow\n");
+ break;
+ }
+
+ if (tswap32(target_cmsg->cmsg_level) == TARGET_SOL_SOCKET) {
+ cmsg->cmsg_level = SOL_SOCKET;
+ } else {
+ cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
+ }
+ cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
+ cmsg->cmsg_len = CMSG_LEN(len);
+
+ if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) {
+ int *fd = (int *)data;
+ int *target_fd = (int *)target_data;
+ int i, numfds = len / sizeof(int);
+
+ for (i = 0; i < numfds; i++) {
+ __get_user(fd[i], target_fd + i);
+ }
+ } else if (cmsg->cmsg_level == SOL_SOCKET
+ && cmsg->cmsg_type == SCM_CREDENTIALS) {
+ struct ucred *cred = (struct ucred *)data;
+ struct target_ucred *target_cred =
+ (struct target_ucred *)target_data;
+
+ __get_user(cred->pid, &target_cred->pid);
+ __get_user(cred->uid, &target_cred->uid);
+ __get_user(cred->gid, &target_cred->gid);
+ } else {
+ gemu_log("Unsupported ancillary data: %d/%d\n",
+ cmsg->cmsg_level, cmsg->cmsg_type);
+ memcpy(data, target_data, len);
+ }
+
+ cmsg = CMSG_NXTHDR(msgh, cmsg);
+ target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
+ }
+ unlock_user(target_cmsg, target_cmsg_addr, 0);
+ the_end:
+ msgh->msg_controllen = space;
+ return 0;
+}
+
+static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
+ struct msghdr *msgh)
+{
+ struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
+ abi_long msg_controllen;
+ abi_ulong target_cmsg_addr;
+ struct target_cmsghdr *target_cmsg;
+ socklen_t space = 0;
+
+ msg_controllen = tswapal(target_msgh->msg_controllen);
+ if (msg_controllen < sizeof (struct target_cmsghdr))
+ goto the_end;
+ target_cmsg_addr = tswapal(target_msgh->msg_control);
+ target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
+ if (!target_cmsg)
+ return -TARGET_EFAULT;
+
+ while (cmsg && target_cmsg) {
+ void *data = CMSG_DATA(cmsg);
+ void *target_data = TARGET_CMSG_DATA(target_cmsg);
+
+ int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
+ int tgt_len, tgt_space;
+
+ /* We never copy a half-header but may copy half-data;
+ * this is Linux's behaviour in put_cmsg(). Note that
+ * truncation here is a guest problem (which we report
+ * to the guest via the CTRUNC bit), unlike truncation
+ * in target_to_host_cmsg, which is a QEMU bug.
+ */
+ if (msg_controllen < sizeof(struct cmsghdr)) {
+ target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
+ break;
+ }
+
+ if (cmsg->cmsg_level == SOL_SOCKET) {
+ target_cmsg->cmsg_level = tswap32(TARGET_SOL_SOCKET);
+ } else {
+ target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
+ }
+ target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
+
+ tgt_len = TARGET_CMSG_LEN(len);
+
+ /* Payload types which need a different size of payload on
+ * the target must adjust tgt_len here.
+ */
+ switch (cmsg->cmsg_level) {
+ case SOL_SOCKET:
+ switch (cmsg->cmsg_type) {
+ case SO_TIMESTAMP:
+ tgt_len = sizeof(struct target_timeval);
+ break;
+ default:
+ break;
+ }
+ default:
+ break;
+ }
+
+ if (msg_controllen < tgt_len) {
+ target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
+ tgt_len = msg_controllen;
+ }
+
+ /* We must now copy-and-convert len bytes of payload
+ * into tgt_len bytes of destination space. Bear in mind
+ * that in both source and destination we may be dealing
+ * with a truncated value!
+ */
+ switch (cmsg->cmsg_level) {
+ case SOL_SOCKET:
+ switch (cmsg->cmsg_type) {
+ case SCM_RIGHTS:
+ {
+ int *fd = (int *)data;
+ int *target_fd = (int *)target_data;
+ int i, numfds = tgt_len / sizeof(int);
+
+ for (i = 0; i < numfds; i++) {
+ __put_user(fd[i], target_fd + i);
+ }
+ break;
+ }
+ case SO_TIMESTAMP:
+ {
+ struct timeval *tv = (struct timeval *)data;
+ struct target_timeval *target_tv =
+ (struct target_timeval *)target_data;
+
+ if (len != sizeof(struct timeval) ||
+ tgt_len != sizeof(struct target_timeval)) {
+ goto unimplemented;
+ }
+
+ /* copy struct timeval to target */
+ __put_user(tv->tv_sec, &target_tv->tv_sec);
+ __put_user(tv->tv_usec, &target_tv->tv_usec);
+ break;
+ }
+ case SCM_CREDENTIALS:
+ {
+ struct ucred *cred = (struct ucred *)data;
+ struct target_ucred *target_cred =
+ (struct target_ucred *)target_data;
+
+ __put_user(cred->pid, &target_cred->pid);
+ __put_user(cred->uid, &target_cred->uid);
+ __put_user(cred->gid, &target_cred->gid);
+ break;
+ }
+ default:
+ goto unimplemented;
+ }
+ break;
+
+ default:
+ unimplemented:
+ gemu_log("Unsupported ancillary data: %d/%d\n",
+ cmsg->cmsg_level, cmsg->cmsg_type);
+ memcpy(target_data, data, MIN(len, tgt_len));
+ if (tgt_len > len) {
+ memset(target_data + len, 0, tgt_len - len);
+ }
+ }
+
+ target_cmsg->cmsg_len = tswapal(tgt_len);
+ tgt_space = TARGET_CMSG_SPACE(tgt_len);
+ if (msg_controllen < tgt_space) {
+ tgt_space = msg_controllen;
+ }
+ msg_controllen -= tgt_space;
+ space += tgt_space;
+ cmsg = CMSG_NXTHDR(msgh, cmsg);
+ target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
+ }
+ unlock_user(target_cmsg, target_cmsg_addr, space);
+ the_end:
+ target_msgh->msg_controllen = tswapal(space);
+ return 0;
+}
+
+/* do_setsockopt() Must return target values and target errnos. */
+static abi_long do_setsockopt(int sockfd, int level, int optname,
+ abi_ulong optval_addr, socklen_t optlen)
+{
+ abi_long ret;
+ int val;
+ struct ip_mreqn *ip_mreq;
+ struct ip_mreq_source *ip_mreq_source;
+
+ switch(level) {
+ case SOL_TCP:
+ /* TCP options all take an 'int' value. */
+ if (optlen < sizeof(uint32_t))
+ return -TARGET_EINVAL;
+
+ if (get_user_u32(val, optval_addr))
+ return -TARGET_EFAULT;
+ ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
+ break;
+ case SOL_IP:
+ switch(optname) {
+ case IP_TOS:
+ case IP_TTL:
+ case IP_HDRINCL:
+ case IP_ROUTER_ALERT:
+ case IP_RECVOPTS:
+ case IP_RETOPTS:
+ case IP_PKTINFO:
+ case IP_MTU_DISCOVER:
+ case IP_RECVERR:
+ case IP_RECVTOS:
+#ifdef IP_FREEBIND
+ case IP_FREEBIND:
+#endif
+ case IP_MULTICAST_TTL:
+ case IP_MULTICAST_LOOP:
+ val = 0;
+ if (optlen >= sizeof(uint32_t)) {
+ if (get_user_u32(val, optval_addr))
+ return -TARGET_EFAULT;
+ } else if (optlen >= 1) {
+ if (get_user_u8(val, optval_addr))
+ return -TARGET_EFAULT;
+ }
+ ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
+ break;
+ case IP_ADD_MEMBERSHIP:
+ case IP_DROP_MEMBERSHIP:
+ if (optlen < sizeof (struct target_ip_mreq) ||
+ optlen > sizeof (struct target_ip_mreqn))
+ return -TARGET_EINVAL;
+
+ ip_mreq = (struct ip_mreqn *) alloca(optlen);
+ target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
+ ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
+ break;
+
+ case IP_BLOCK_SOURCE:
+ case IP_UNBLOCK_SOURCE:
+ case IP_ADD_SOURCE_MEMBERSHIP:
+ case IP_DROP_SOURCE_MEMBERSHIP:
+ if (optlen != sizeof (struct target_ip_mreq_source))
+ return -TARGET_EINVAL;
+
+ ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
+ ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
+ unlock_user (ip_mreq_source, optval_addr, 0);
+ break;
+
+ default:
+ goto unimplemented;
+ }
+ break;
+ case SOL_IPV6:
+ switch (optname) {
+ case IPV6_MTU_DISCOVER:
+ case IPV6_MTU:
+ case IPV6_V6ONLY:
+ case IPV6_RECVPKTINFO:
+ val = 0;
+ if (optlen < sizeof(uint32_t)) {
+ return -TARGET_EINVAL;
+ }
+ if (get_user_u32(val, optval_addr)) {
+ return -TARGET_EFAULT;
+ }
+ ret = get_errno(setsockopt(sockfd, level, optname,
+ &val, sizeof(val)));
+ break;
+ default:
+ goto unimplemented;
+ }
+ break;
+ case SOL_RAW:
+ switch (optname) {
+ case ICMP_FILTER:
+ /* struct icmp_filter takes an u32 value */
+ if (optlen < sizeof(uint32_t)) {
+ return -TARGET_EINVAL;
+ }
+
+ if (get_user_u32(val, optval_addr)) {
+ return -TARGET_EFAULT;
+ }
+ ret = get_errno(setsockopt(sockfd, level, optname,
+ &val, sizeof(val)));
+ break;
+
+ default:
+ goto unimplemented;
+ }
+ break;
+ case TARGET_SOL_SOCKET:
+ switch (optname) {
+ case TARGET_SO_RCVTIMEO:
+ {
+ struct timeval tv;
+
+ optname = SO_RCVTIMEO;
+
+set_timeout:
+ if (optlen != sizeof(struct target_timeval)) {
+ return -TARGET_EINVAL;
+ }
+
+ if (copy_from_user_timeval(&tv, optval_addr)) {
+ return -TARGET_EFAULT;
+ }
+
+ ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
+ &tv, sizeof(tv)));
+ return ret;
+ }
+ case TARGET_SO_SNDTIMEO:
+ optname = SO_SNDTIMEO;
+ goto set_timeout;
+ case TARGET_SO_ATTACH_FILTER:
+ {
+ struct target_sock_fprog *tfprog;
+ struct target_sock_filter *tfilter;
+ struct sock_fprog fprog;
+ struct sock_filter *filter;
+ int i;
+
+ if (optlen != sizeof(*tfprog)) {
+ return -TARGET_EINVAL;
+ }
+ if (!lock_user_struct(VERIFY_READ, tfprog, optval_addr, 0)) {
+ return -TARGET_EFAULT;
+ }
+ if (!lock_user_struct(VERIFY_READ, tfilter,
+ tswapal(tfprog->filter), 0)) {
+ unlock_user_struct(tfprog, optval_addr, 1);
+ return -TARGET_EFAULT;
+ }
+
+ fprog.len = tswap16(tfprog->len);
+ filter = malloc(fprog.len * sizeof(*filter));
+ if (filter == NULL) {
+ unlock_user_struct(tfilter, tfprog->filter, 1);
+ unlock_user_struct(tfprog, optval_addr, 1);
+ return -TARGET_ENOMEM;
+ }
+ for (i = 0; i < fprog.len; i++) {
+ filter[i].code = tswap16(tfilter[i].code);
+ filter[i].jt = tfilter[i].jt;
+ filter[i].jf = tfilter[i].jf;
+ filter[i].k = tswap32(tfilter[i].k);
+ }
+ fprog.filter = filter;
+
+ ret = get_errno(setsockopt(sockfd, SOL_SOCKET,
+ SO_ATTACH_FILTER, &fprog, sizeof(fprog)));
+ free(filter);
+
+ unlock_user_struct(tfilter, tfprog->filter, 1);
+ unlock_user_struct(tfprog, optval_addr, 1);
+ return ret;
+ }
+ case TARGET_SO_BINDTODEVICE:
+ {
+ char *dev_ifname, *addr_ifname;
+
+ if (optlen > IFNAMSIZ - 1) {
+ optlen = IFNAMSIZ - 1;
+ }
+ dev_ifname = lock_user(VERIFY_READ, optval_addr, optlen, 1);
+ if (!dev_ifname) {
+ return -TARGET_EFAULT;
+ }
+ optname = SO_BINDTODEVICE;
+ addr_ifname = alloca(IFNAMSIZ);
+ memcpy(addr_ifname, dev_ifname, optlen);
+ addr_ifname[optlen] = 0;
+ ret = get_errno(setsockopt(sockfd, level, optname, addr_ifname, optlen));
+ unlock_user (dev_ifname, optval_addr, 0);
+ return ret;
+ }
+ /* Options with 'int' argument. */
+ case TARGET_SO_DEBUG:
+ optname = SO_DEBUG;
+ break;
+ case TARGET_SO_REUSEADDR:
+ optname = SO_REUSEADDR;
+ break;
+ case TARGET_SO_TYPE:
+ optname = SO_TYPE;
+ break;
+ case TARGET_SO_ERROR:
+ optname = SO_ERROR;
+ break;
+ case TARGET_SO_DONTROUTE:
+ optname = SO_DONTROUTE;
+ break;
+ case TARGET_SO_BROADCAST:
+ optname = SO_BROADCAST;
+ break;
+ case TARGET_SO_SNDBUF:
+ optname = SO_SNDBUF;
+ break;
+ case TARGET_SO_SNDBUFFORCE:
+ optname = SO_SNDBUFFORCE;
+ break;
+ case TARGET_SO_RCVBUF:
+ optname = SO_RCVBUF;
+ break;
+ case TARGET_SO_RCVBUFFORCE:
+ optname = SO_RCVBUFFORCE;
+ break;
+ case TARGET_SO_KEEPALIVE:
+ optname = SO_KEEPALIVE;
+ break;
+ case TARGET_SO_OOBINLINE:
+ optname = SO_OOBINLINE;
+ break;
+ case TARGET_SO_NO_CHECK:
+ optname = SO_NO_CHECK;
+ break;
+ case TARGET_SO_PRIORITY:
+ optname = SO_PRIORITY;
+ break;
+#ifdef SO_BSDCOMPAT
+ case TARGET_SO_BSDCOMPAT:
+ optname = SO_BSDCOMPAT;
+ break;
+#endif
+ case TARGET_SO_PASSCRED:
+ optname = SO_PASSCRED;
+ break;
+ case TARGET_SO_PASSSEC:
+ optname = SO_PASSSEC;
+ break;
+ case TARGET_SO_TIMESTAMP:
+ optname = SO_TIMESTAMP;
+ break;
+ case TARGET_SO_RCVLOWAT:
+ optname = SO_RCVLOWAT;
+ break;
+ break;
+ default:
+ goto unimplemented;
+ }
+ if (optlen < sizeof(uint32_t))
+ return -TARGET_EINVAL;
+
+ if (get_user_u32(val, optval_addr))
+ return -TARGET_EFAULT;
+ ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
+ break;
+ default:
+ unimplemented:
+ gemu_log("Unsupported setsockopt level=%d optname=%d\n", level, optname);
+ ret = -TARGET_ENOPROTOOPT;
+ }
+ return ret;
+}
+
+/* do_getsockopt() Must return target values and target errnos. */
+static abi_long do_getsockopt(int sockfd, int level, int optname,
+ abi_ulong optval_addr, abi_ulong optlen)
+{
+ abi_long ret;
+ int len, val;
+ socklen_t lv;
+
+ switch(level) {
+ case TARGET_SOL_SOCKET:
+ level = SOL_SOCKET;
+ switch (optname) {
+ /* These don't just return a single integer */
+ case TARGET_SO_LINGER:
+ case TARGET_SO_RCVTIMEO:
+ case TARGET_SO_SNDTIMEO:
+ case TARGET_SO_PEERNAME:
+ goto unimplemented;
+ case TARGET_SO_PEERCRED: {
+ struct ucred cr;
+ socklen_t crlen;
+ struct target_ucred *tcr;
+
+ if (get_user_u32(len, optlen)) {
+ return -TARGET_EFAULT;
+ }
+ if (len < 0) {
+ return -TARGET_EINVAL;
+ }
+
+ crlen = sizeof(cr);
+ ret = get_errno(getsockopt(sockfd, level, SO_PEERCRED,
+ &cr, &crlen));
+ if (ret < 0) {
+ return ret;
+ }
+ if (len > crlen) {
+ len = crlen;
+ }
+ if (!lock_user_struct(VERIFY_WRITE, tcr, optval_addr, 0)) {
+ return -TARGET_EFAULT;
+ }
+ __put_user(cr.pid, &tcr->pid);
+ __put_user(cr.uid, &tcr->uid);
+ __put_user(cr.gid, &tcr->gid);
+ unlock_user_struct(tcr, optval_addr, 1);
+ if (put_user_u32(len, optlen)) {
+ return -TARGET_EFAULT;
+ }
+ break;
+ }
+ /* Options with 'int' argument. */
+ case TARGET_SO_DEBUG:
+ optname = SO_DEBUG;
+ goto int_case;
+ case TARGET_SO_REUSEADDR:
+ optname = SO_REUSEADDR;
+ goto int_case;
+ case TARGET_SO_TYPE:
+ optname = SO_TYPE;
+ goto int_case;
+ case TARGET_SO_ERROR:
+ optname = SO_ERROR;
+ goto int_case;
+ case TARGET_SO_DONTROUTE:
+ optname = SO_DONTROUTE;
+ goto int_case;
+ case TARGET_SO_BROADCAST:
+ optname = SO_BROADCAST;
+ goto int_case;
+ case TARGET_SO_SNDBUF:
+ optname = SO_SNDBUF;
+ goto int_case;
+ case TARGET_SO_RCVBUF:
+ optname = SO_RCVBUF;
+ goto int_case;
+ case TARGET_SO_KEEPALIVE:
+ optname = SO_KEEPALIVE;
+ goto int_case;
+ case TARGET_SO_OOBINLINE:
+ optname = SO_OOBINLINE;
+ goto int_case;
+ case TARGET_SO_NO_CHECK:
+ optname = SO_NO_CHECK;
+ goto int_case;
+ case TARGET_SO_PRIORITY:
+ optname = SO_PRIORITY;
+ goto int_case;
+#ifdef SO_BSDCOMPAT
+ case TARGET_SO_BSDCOMPAT:
+ optname = SO_BSDCOMPAT;
+ goto int_case;
+#endif
+ case TARGET_SO_PASSCRED:
+ optname = SO_PASSCRED;
+ goto int_case;
+ case TARGET_SO_TIMESTAMP:
+ optname = SO_TIMESTAMP;
+ goto int_case;
+ case TARGET_SO_RCVLOWAT:
+ optname = SO_RCVLOWAT;
+ goto int_case;
+ case TARGET_SO_ACCEPTCONN:
+ optname = SO_ACCEPTCONN;
+ goto int_case;
+ default:
+ goto int_case;
+ }
+ break;
+ case SOL_TCP:
+ /* TCP options all take an 'int' value. */
+ int_case:
+ if (get_user_u32(len, optlen))
+ return -TARGET_EFAULT;
+ if (len < 0)
+ return -TARGET_EINVAL;
+ lv = sizeof(lv);
+ ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
+ if (ret < 0)
+ return ret;
+ if (optname == SO_TYPE) {
+ val = host_to_target_sock_type(val);
+ }
+ if (len > lv)
+ len = lv;
+ if (len == 4) {
+ if (put_user_u32(val, optval_addr))
+ return -TARGET_EFAULT;
+ } else {
+ if (put_user_u8(val, optval_addr))
+ return -TARGET_EFAULT;
+ }
+ if (put_user_u32(len, optlen))
+ return -TARGET_EFAULT;
+ break;
+ case SOL_IP:
+ switch(optname) {
+ case IP_TOS:
+ case IP_TTL:
+ case IP_HDRINCL:
+ case IP_ROUTER_ALERT:
+ case IP_RECVOPTS:
+ case IP_RETOPTS:
+ case IP_PKTINFO:
+ case IP_MTU_DISCOVER:
+ case IP_RECVERR:
+ case IP_RECVTOS:
+#ifdef IP_FREEBIND
+ case IP_FREEBIND:
+#endif
+ case IP_MULTICAST_TTL:
+ case IP_MULTICAST_LOOP:
+ if (get_user_u32(len, optlen))
+ return -TARGET_EFAULT;
+ if (len < 0)
+ return -TARGET_EINVAL;
+ lv = sizeof(lv);
+ ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
+ if (ret < 0)
+ return ret;
+ if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
+ len = 1;
+ if (put_user_u32(len, optlen)
+ || put_user_u8(val, optval_addr))
+ return -TARGET_EFAULT;
+ } else {
+ if (len > sizeof(int))
+ len = sizeof(int);
+ if (put_user_u32(len, optlen)
+ || put_user_u32(val, optval_addr))
+ return -TARGET_EFAULT;
+ }
+ break;
+ default:
+ ret = -TARGET_ENOPROTOOPT;
+ break;
+ }
+ break;
+ default:
+ unimplemented:
+ gemu_log("getsockopt level=%d optname=%d not yet supported\n",
+ level, optname);
+ ret = -TARGET_EOPNOTSUPP;
+ break;
+ }
+ return ret;
+}
+
+static struct iovec *lock_iovec(int type, abi_ulong target_addr,
+ int count, int copy)
+{
+ struct target_iovec *target_vec;
+ struct iovec *vec;
+ abi_ulong total_len, max_len;
+ int i;
+ int err = 0;
+ bool bad_address = false;
+
+ if (count == 0) {
+ errno = 0;
+ return NULL;
+ }
+ if (count < 0 || count > IOV_MAX) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ vec = calloc(count, sizeof(struct iovec));
+ if (vec == NULL) {
+ errno = ENOMEM;
+ return NULL;
+ }
+
+ target_vec = lock_user(VERIFY_READ, target_addr,
+ count * sizeof(struct target_iovec), 1);
+ if (target_vec == NULL) {
+ err = EFAULT;
+ goto fail2;
+ }
+
+ /* ??? If host page size > target page size, this will result in a
+ value larger than what we can actually support. */
+ max_len = 0x7fffffff & TARGET_PAGE_MASK;
+ total_len = 0;
+
+ for (i = 0; i < count; i++) {
+ abi_ulong base = tswapal(target_vec[i].iov_base);
+ abi_long len = tswapal(target_vec[i].iov_len);
+
+ if (len < 0) {
+ err = EINVAL;
+ goto fail;
+ } else if (len == 0) {
+ /* Zero length pointer is ignored. */
+ vec[i].iov_base = 0;
+ } else {
+ vec[i].iov_base = lock_user(type, base, len, copy);
+ /* If the first buffer pointer is bad, this is a fault. But
+ * subsequent bad buffers will result in a partial write; this
+ * is realized by filling the vector with null pointers and
+ * zero lengths. */
+ if (!vec[i].iov_base) {
+ if (i == 0) {
+ err = EFAULT;
+ goto fail;
+ } else {
+ bad_address = true;
+ }
+ }
+ if (bad_address) {
+ len = 0;
+ }
+ if (len > max_len - total_len) {
+ len = max_len - total_len;
+ }
+ }
+ vec[i].iov_len = len;
+ total_len += len;
+ }
+
+ unlock_user(target_vec, target_addr, 0);
+ return vec;
+
+ fail:
+ while (--i >= 0) {
+ if (tswapal(target_vec[i].iov_len) > 0) {
+ unlock_user(vec[i].iov_base, tswapal(target_vec[i].iov_base), 0);
+ }
+ }
+ unlock_user(target_vec, target_addr, 0);
+ fail2:
+ free(vec);
+ errno = err;
+ return NULL;
+}
+
+static void unlock_iovec(struct iovec *vec, abi_ulong target_addr,
+ int count, int copy)
+{
+ struct target_iovec *target_vec;
+ int i;
+
+ target_vec = lock_user(VERIFY_READ, target_addr,
+ count * sizeof(struct target_iovec), 1);
+ if (target_vec) {
+ for (i = 0; i < count; i++) {
+ abi_ulong base = tswapal(target_vec[i].iov_base);
+ abi_long len = tswapal(target_vec[i].iov_len);
+ if (len < 0) {
+ break;
+ }
+ unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
+ }
+ unlock_user(target_vec, target_addr, 0);
+ }
+
+ free(vec);
+}
+
+static inline int target_to_host_sock_type(int *type)
+{
+ int host_type = 0;
+ int target_type = *type;
+
+ switch (target_type & TARGET_SOCK_TYPE_MASK) {
+ case TARGET_SOCK_DGRAM:
+ host_type = SOCK_DGRAM;
+ break;
+ case TARGET_SOCK_STREAM:
+ host_type = SOCK_STREAM;
+ break;
+ default:
+ host_type = target_type & TARGET_SOCK_TYPE_MASK;
+ break;
+ }
+ if (target_type & TARGET_SOCK_CLOEXEC) {
+#if defined(SOCK_CLOEXEC)
+ host_type |= SOCK_CLOEXEC;
+#else
+ return -TARGET_EINVAL;
+#endif
+ }
+ if (target_type & TARGET_SOCK_NONBLOCK) {
+#if defined(SOCK_NONBLOCK)
+ host_type |= SOCK_NONBLOCK;
+#elif !defined(O_NONBLOCK)
+ return -TARGET_EINVAL;
+#endif
+ }
+ *type = host_type;
+ return 0;
+}
+
+/* Try to emulate socket type flags after socket creation. */
+static int sock_flags_fixup(int fd, int target_type)
+{
+#if !defined(SOCK_NONBLOCK) && defined(O_NONBLOCK)
+ if (target_type & TARGET_SOCK_NONBLOCK) {
+ int flags = fcntl(fd, F_GETFL);
+ if (fcntl(fd, F_SETFL, O_NONBLOCK | flags) == -1) {
+ close(fd);
+ return -TARGET_EINVAL;
+ }
+ }
+#endif
+ return fd;
+}
+
+/* do_socket() Must return target values and target errnos. */
+static abi_long do_socket(int domain, int type, int protocol)
+{
+ int target_type = type;
+ int ret;
+
+ ret = target_to_host_sock_type(&type);
+ if (ret) {
+ return ret;
+ }
+
+ if (domain == PF_NETLINK)
+ return -TARGET_EAFNOSUPPORT;
+ ret = get_errno(socket(domain, type, protocol));
+ if (ret >= 0) {
+ ret = sock_flags_fixup(ret, target_type);
+ }
+ return ret;
+}
+
+/* do_bind() Must return target values and target errnos. */
+static abi_long do_bind(int sockfd, abi_ulong target_addr,
+ socklen_t addrlen)
+{
+ void *addr;
+ abi_long ret;
+
+ if ((int)addrlen < 0) {
+ return -TARGET_EINVAL;
+ }
+
+ addr = alloca(addrlen+1);
+
+ ret = target_to_host_sockaddr(addr, target_addr, addrlen);
+ if (ret)
+ return ret;
+
+ return get_errno(bind(sockfd, addr, addrlen));
+}
+
+/* do_connect() Must return target values and target errnos. */
+static abi_long do_connect(int sockfd, abi_ulong target_addr,
+ socklen_t addrlen)
+{
+ void *addr;
+ abi_long ret;
+
+ if ((int)addrlen < 0) {
+ return -TARGET_EINVAL;
+ }
+
+ addr = alloca(addrlen+1);
+
+ ret = target_to_host_sockaddr(addr, target_addr, addrlen);
+ if (ret)
+ return ret;
+
+ return get_errno(connect(sockfd, addr, addrlen));
+}
+
+/* do_sendrecvmsg_locked() Must return target values and target errnos. */
+static abi_long do_sendrecvmsg_locked(int fd, struct target_msghdr *msgp,
+ int flags, int send)
+{
+ abi_long ret, len;
+ struct msghdr msg;
+ int count;
+ struct iovec *vec;
+ abi_ulong target_vec;
+
+ if (msgp->msg_name) {
+ msg.msg_namelen = tswap32(msgp->msg_namelen);
+ msg.msg_name = alloca(msg.msg_namelen+1);
+ ret = target_to_host_sockaddr(msg.msg_name, tswapal(msgp->msg_name),
+ msg.msg_namelen);
+ if (ret) {
+ goto out2;
+ }
+ } else {
+ msg.msg_name = NULL;
+ msg.msg_namelen = 0;
+ }
+ msg.msg_controllen = 2 * tswapal(msgp->msg_controllen);
+ msg.msg_control = alloca(msg.msg_controllen);
+ msg.msg_flags = tswap32(msgp->msg_flags);
+
+ count = tswapal(msgp->msg_iovlen);
+ target_vec = tswapal(msgp->msg_iov);
+ vec = lock_iovec(send ? VERIFY_READ : VERIFY_WRITE,
+ target_vec, count, send);
+ if (vec == NULL) {
+ ret = -host_to_target_errno(errno);
+ goto out2;
+ }
+ msg.msg_iovlen = count;
+ msg.msg_iov = vec;
+
+ if (send) {
+ ret = target_to_host_cmsg(&msg, msgp);
+ if (ret == 0)
+ ret = get_errno(sendmsg(fd, &msg, flags));
+ } else {
+ ret = get_errno(recvmsg(fd, &msg, flags));
+ if (!is_error(ret)) {
+ len = ret;
+ ret = host_to_target_cmsg(msgp, &msg);
+ if (!is_error(ret)) {
+ msgp->msg_namelen = tswap32(msg.msg_namelen);
+ if (msg.msg_name != NULL) {
+ ret = host_to_target_sockaddr(tswapal(msgp->msg_name),
+ msg.msg_name, msg.msg_namelen);
+ if (ret) {
+ goto out;
+ }
+ }
+
+ ret = len;
+ }
+ }
+ }
+
+out:
+ unlock_iovec(vec, target_vec, count, !send);
+out2:
+ return ret;
+}
+
+static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
+ int flags, int send)
+{
+ abi_long ret;
+ struct target_msghdr *msgp;
+
+ if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
+ msgp,
+ target_msg,
+ send ? 1 : 0)) {
+ return -TARGET_EFAULT;
+ }
+ ret = do_sendrecvmsg_locked(fd, msgp, flags, send);
+ unlock_user_struct(msgp, target_msg, send ? 0 : 1);
+ return ret;
+}
+
+#ifdef TARGET_NR_sendmmsg
+/* We don't rely on the C library to have sendmmsg/recvmmsg support,
+ * so it might not have this *mmsg-specific flag either.
+ */
+#ifndef MSG_WAITFORONE
+#define MSG_WAITFORONE 0x10000
+#endif
+
+static abi_long do_sendrecvmmsg(int fd, abi_ulong target_msgvec,
+ unsigned int vlen, unsigned int flags,
+ int send)
+{
+ struct target_mmsghdr *mmsgp;
+ abi_long ret = 0;
+ int i;
+
+ if (vlen > UIO_MAXIOV) {
+ vlen = UIO_MAXIOV;
+ }
+
+ mmsgp = lock_user(VERIFY_WRITE, target_msgvec, sizeof(*mmsgp) * vlen, 1);
+ if (!mmsgp) {
+ return -TARGET_EFAULT;
+ }
+
+ for (i = 0; i < vlen; i++) {
+ ret = do_sendrecvmsg_locked(fd, &mmsgp[i].msg_hdr, flags, send);
+ if (is_error(ret)) {
+ break;
+ }
+ mmsgp[i].msg_len = tswap32(ret);
+ /* MSG_WAITFORONE turns on MSG_DONTWAIT after one packet */
+ if (flags & MSG_WAITFORONE) {
+ flags |= MSG_DONTWAIT;
+ }
+ }
+
+ unlock_user(mmsgp, target_msgvec, sizeof(*mmsgp) * i);
+
+ /* Return number of datagrams sent if we sent any at all;
+ * otherwise return the error.
+ */
+ if (i) {
+ return i;
+ }
+ return ret;
+}
+#endif
+
+/* If we don't have a system accept4() then just call accept.
+ * The callsites to do_accept4() will ensure that they don't
+ * pass a non-zero flags argument in this config.
+ */
+#ifndef CONFIG_ACCEPT4
+static inline int accept4(int sockfd, struct sockaddr *addr,
+ socklen_t *addrlen, int flags)
+{
+ assert(flags == 0);
+ return accept(sockfd, addr, addrlen);
+}
+#endif
+
+/* do_accept4() Must return target values and target errnos. */
+static abi_long do_accept4(int fd, abi_ulong target_addr,
+ abi_ulong target_addrlen_addr, int flags)
+{
+ socklen_t addrlen;
+ void *addr;
+ abi_long ret;
+ int host_flags;
+
+ host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
+
+ if (target_addr == 0) {
+ return get_errno(accept4(fd, NULL, NULL, host_flags));
+ }
+
+ /* linux returns EINVAL if addrlen pointer is invalid */
+ if (get_user_u32(addrlen, target_addrlen_addr))
+ return -TARGET_EINVAL;
+
+ if ((int)addrlen < 0) {
+ return -TARGET_EINVAL;
+ }
+
+ if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
+ return -TARGET_EINVAL;
+
+ addr = alloca(addrlen);
+
+ ret = get_errno(accept4(fd, addr, &addrlen, host_flags));
+ if (!is_error(ret)) {
+ host_to_target_sockaddr(target_addr, addr, addrlen);
+ if (put_user_u32(addrlen, target_addrlen_addr))
+ ret = -TARGET_EFAULT;
+ }
+ return ret;
+}
+
+/* do_getpeername() Must return target values and target errnos. */
+static abi_long do_getpeername(int fd, abi_ulong target_addr,
+ abi_ulong target_addrlen_addr)
+{
+ socklen_t addrlen;
+ void *addr;
+ abi_long ret;
+
+ if (get_user_u32(addrlen, target_addrlen_addr))
+ return -TARGET_EFAULT;
+
+ if ((int)addrlen < 0) {
+ return -TARGET_EINVAL;
+ }
+
+ if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
+ return -TARGET_EFAULT;
+
+ addr = alloca(addrlen);
+
+ ret = get_errno(getpeername(fd, addr, &addrlen));
+ if (!is_error(ret)) {
+ host_to_target_sockaddr(target_addr, addr, addrlen);
+ if (put_user_u32(addrlen, target_addrlen_addr))
+ ret = -TARGET_EFAULT;
+ }
+ return ret;
+}
+
+/* do_getsockname() Must return target values and target errnos. */
+static abi_long do_getsockname(int fd, abi_ulong target_addr,
+ abi_ulong target_addrlen_addr)
+{
+ socklen_t addrlen;
+ void *addr;
+ abi_long ret;
+
+ if (get_user_u32(addrlen, target_addrlen_addr))
+ return -TARGET_EFAULT;
+
+ if ((int)addrlen < 0) {
+ return -TARGET_EINVAL;
+ }
+
+ if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
+ return -TARGET_EFAULT;
+
+ addr = alloca(addrlen);
+
+ ret = get_errno(getsockname(fd, addr, &addrlen));
+ if (!is_error(ret)) {
+ host_to_target_sockaddr(target_addr, addr, addrlen);
+ if (put_user_u32(addrlen, target_addrlen_addr))
+ ret = -TARGET_EFAULT;
+ }
+ return ret;
+}
+
+/* do_socketpair() Must return target values and target errnos. */
+static abi_long do_socketpair(int domain, int type, int protocol,
+ abi_ulong target_tab_addr)
+{
+ int tab[2];
+ abi_long ret;
+
+ target_to_host_sock_type(&type);
+
+ ret = get_errno(socketpair(domain, type, protocol, tab));
+ if (!is_error(ret)) {
+ if (put_user_s32(tab[0], target_tab_addr)
+ || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
+ ret = -TARGET_EFAULT;
+ }
+ return ret;
+}
+
+/* do_sendto() Must return target values and target errnos. */
+static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
+ abi_ulong target_addr, socklen_t addrlen)
+{
+ void *addr;
+ void *host_msg;
+ abi_long ret;
+
+ if ((int)addrlen < 0) {
+ return -TARGET_EINVAL;
+ }
+
+ host_msg = lock_user(VERIFY_READ, msg, len, 1);
+ if (!host_msg)
+ return -TARGET_EFAULT;
+ if (target_addr) {
+ addr = alloca(addrlen+1);
+ ret = target_to_host_sockaddr(addr, target_addr, addrlen);
+ if (ret) {
+ unlock_user(host_msg, msg, 0);
+ return ret;
+ }
+ ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
+ } else {
+ ret = get_errno(send(fd, host_msg, len, flags));
+ }
+ unlock_user(host_msg, msg, 0);
+ return ret;
+}
+
+/* do_recvfrom() Must return target values and target errnos. */
+static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
+ abi_ulong target_addr,
+ abi_ulong target_addrlen)
+{
+ socklen_t addrlen;
+ void *addr;
+ void *host_msg;
+ abi_long ret;
+
+ host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
+ if (!host_msg)
+ return -TARGET_EFAULT;
+ if (target_addr) {
+ if (get_user_u32(addrlen, target_addrlen)) {
+ ret = -TARGET_EFAULT;
+ goto fail;
+ }
+ if ((int)addrlen < 0) {
+ ret = -TARGET_EINVAL;
+ goto fail;
+ }
+ addr = alloca(addrlen);
+ ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
+ } else {
+ addr = NULL; /* To keep compiler quiet. */
+ ret = get_errno(qemu_recv(fd, host_msg, len, flags));
+ }
+ if (!is_error(ret)) {
+ if (target_addr) {
+ host_to_target_sockaddr(target_addr, addr, addrlen);
+ if (put_user_u32(addrlen, target_addrlen)) {
+ ret = -TARGET_EFAULT;
+ goto fail;
+ }
+ }
+ unlock_user(host_msg, msg, len);
+ } else {
+fail:
+ unlock_user(host_msg, msg, 0);
+ }
+ return ret;
+}
+
+#ifdef TARGET_NR_socketcall
+/* do_socketcall() Must return target values and target errnos. */
+static abi_long do_socketcall(int num, abi_ulong vptr)
+{
+ static const unsigned ac[] = { /* number of arguments per call */
+ [SOCKOP_socket] = 3, /* domain, type, protocol */
+ [SOCKOP_bind] = 3, /* sockfd, addr, addrlen */
+ [SOCKOP_connect] = 3, /* sockfd, addr, addrlen */
+ [SOCKOP_listen] = 2, /* sockfd, backlog */
+ [SOCKOP_accept] = 3, /* sockfd, addr, addrlen */
+ [SOCKOP_accept4] = 4, /* sockfd, addr, addrlen, flags */
+ [SOCKOP_getsockname] = 3, /* sockfd, addr, addrlen */
+ [SOCKOP_getpeername] = 3, /* sockfd, addr, addrlen */
+ [SOCKOP_socketpair] = 4, /* domain, type, protocol, tab */
+ [SOCKOP_send] = 4, /* sockfd, msg, len, flags */
+ [SOCKOP_recv] = 4, /* sockfd, msg, len, flags */
+ [SOCKOP_sendto] = 6, /* sockfd, msg, len, flags, addr, addrlen */
+ [SOCKOP_recvfrom] = 6, /* sockfd, msg, len, flags, addr, addrlen */
+ [SOCKOP_shutdown] = 2, /* sockfd, how */
+ [SOCKOP_sendmsg] = 3, /* sockfd, msg, flags */
+ [SOCKOP_recvmsg] = 3, /* sockfd, msg, flags */
+ [SOCKOP_setsockopt] = 5, /* sockfd, level, optname, optval, optlen */
+ [SOCKOP_getsockopt] = 5, /* sockfd, level, optname, optval, optlen */
+ };
+ abi_long a[6]; /* max 6 args */
+
+ /* first, collect the arguments in a[] according to ac[] */
+ if (num >= 0 && num < ARRAY_SIZE(ac)) {
+ unsigned i;
+ assert(ARRAY_SIZE(a) >= ac[num]); /* ensure we have space for args */
+ for (i = 0; i < ac[num]; ++i) {
+ if (get_user_ual(a[i], vptr + i * sizeof(abi_long)) != 0) {
+ return -TARGET_EFAULT;
+ }
+ }
+ }
+
+ /* now when we have the args, actually handle the call */
+ switch (num) {
+ case SOCKOP_socket: /* domain, type, protocol */
+ return do_socket(a[0], a[1], a[2]);
+ case SOCKOP_bind: /* sockfd, addr, addrlen */
+ return do_bind(a[0], a[1], a[2]);
+ case SOCKOP_connect: /* sockfd, addr, addrlen */
+ return do_connect(a[0], a[1], a[2]);
+ case SOCKOP_listen: /* sockfd, backlog */
+ return get_errno(listen(a[0], a[1]));
+ case SOCKOP_accept: /* sockfd, addr, addrlen */
+ return do_accept4(a[0], a[1], a[2], 0);
+ case SOCKOP_accept4: /* sockfd, addr, addrlen, flags */
+ return do_accept4(a[0], a[1], a[2], a[3]);
+ case SOCKOP_getsockname: /* sockfd, addr, addrlen */
+ return do_getsockname(a[0], a[1], a[2]);
+ case SOCKOP_getpeername: /* sockfd, addr, addrlen */
+ return do_getpeername(a[0], a[1], a[2]);
+ case SOCKOP_socketpair: /* domain, type, protocol, tab */
+ return do_socketpair(a[0], a[1], a[2], a[3]);
+ case SOCKOP_send: /* sockfd, msg, len, flags */
+ return do_sendto(a[0], a[1], a[2], a[3], 0, 0);
+ case SOCKOP_recv: /* sockfd, msg, len, flags */
+ return do_recvfrom(a[0], a[1], a[2], a[3], 0, 0);
+ case SOCKOP_sendto: /* sockfd, msg, len, flags, addr, addrlen */
+ return do_sendto(a[0], a[1], a[2], a[3], a[4], a[5]);
+ case SOCKOP_recvfrom: /* sockfd, msg, len, flags, addr, addrlen */
+ return do_recvfrom(a[0], a[1], a[2], a[3], a[4], a[5]);
+ case SOCKOP_shutdown: /* sockfd, how */
+ return get_errno(shutdown(a[0], a[1]));
+ case SOCKOP_sendmsg: /* sockfd, msg, flags */
+ return do_sendrecvmsg(a[0], a[1], a[2], 1);
+ case SOCKOP_recvmsg: /* sockfd, msg, flags */
+ return do_sendrecvmsg(a[0], a[1], a[2], 0);
+ case SOCKOP_setsockopt: /* sockfd, level, optname, optval, optlen */
+ return do_setsockopt(a[0], a[1], a[2], a[3], a[4]);
+ case SOCKOP_getsockopt: /* sockfd, level, optname, optval, optlen */
+ return do_getsockopt(a[0], a[1], a[2], a[3], a[4]);
+ default:
+ gemu_log("Unsupported socketcall: %d\n", num);
+ return -TARGET_ENOSYS;
+ }
+}
+#endif
+
+#define N_SHM_REGIONS 32
+
+static struct shm_region {
+ abi_ulong start;
+ abi_ulong size;
+} shm_regions[N_SHM_REGIONS];
+
+struct target_semid_ds
+{
+ struct target_ipc_perm sem_perm;
+ abi_ulong sem_otime;
+#if !defined(TARGET_PPC64)
+ abi_ulong __unused1;
+#endif
+ abi_ulong sem_ctime;
+#if !defined(TARGET_PPC64)
+ abi_ulong __unused2;
+#endif
+ abi_ulong sem_nsems;
+ abi_ulong __unused3;
+ abi_ulong __unused4;
+};
+
+static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
+ abi_ulong target_addr)
+{
+ struct target_ipc_perm *target_ip;
+ struct target_semid_ds *target_sd;
+
+ if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
+ return -TARGET_EFAULT;
+ target_ip = &(target_sd->sem_perm);
+ host_ip->__key = tswap32(target_ip->__key);
+ host_ip->uid = tswap32(target_ip->uid);
+ host_ip->gid = tswap32(target_ip->gid);
+ host_ip->cuid = tswap32(target_ip->cuid);
+ host_ip->cgid = tswap32(target_ip->cgid);
+#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
+ host_ip->mode = tswap32(target_ip->mode);
+#else
+ host_ip->mode = tswap16(target_ip->mode);
+#endif
+#if defined(TARGET_PPC)
+ host_ip->__seq = tswap32(target_ip->__seq);
+#else
+ host_ip->__seq = tswap16(target_ip->__seq);
+#endif
+ unlock_user_struct(target_sd, target_addr, 0);
+ return 0;
+}
+
+static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
+ struct ipc_perm *host_ip)
+{
+ struct target_ipc_perm *target_ip;
+ struct target_semid_ds *target_sd;
+
+ if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
+ return -TARGET_EFAULT;
+ target_ip = &(target_sd->sem_perm);
+ target_ip->__key = tswap32(host_ip->__key);
+ target_ip->uid = tswap32(host_ip->uid);
+ target_ip->gid = tswap32(host_ip->gid);
+ target_ip->cuid = tswap32(host_ip->cuid);
+ target_ip->cgid = tswap32(host_ip->cgid);
+#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
+ target_ip->mode = tswap32(host_ip->mode);
+#else
+ target_ip->mode = tswap16(host_ip->mode);
+#endif
+#if defined(TARGET_PPC)
+ target_ip->__seq = tswap32(host_ip->__seq);
+#else
+ target_ip->__seq = tswap16(host_ip->__seq);
+#endif
+ unlock_user_struct(target_sd, target_addr, 1);
+ return 0;
+}
+
+static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
+ abi_ulong target_addr)
+{
+ struct target_semid_ds *target_sd;
+
+ if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
+ return -TARGET_EFAULT;
+ if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
+ return -TARGET_EFAULT;
+ host_sd->sem_nsems = tswapal(target_sd->sem_nsems);
+ host_sd->sem_otime = tswapal(target_sd->sem_otime);
+ host_sd->sem_ctime = tswapal(target_sd->sem_ctime);
+ unlock_user_struct(target_sd, target_addr, 0);
+ return 0;
+}
+
+static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
+ struct semid_ds *host_sd)
+{
+ struct target_semid_ds *target_sd;
+
+ if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
+ return -TARGET_EFAULT;
+ if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
+ return -TARGET_EFAULT;
+ target_sd->sem_nsems = tswapal(host_sd->sem_nsems);
+ target_sd->sem_otime = tswapal(host_sd->sem_otime);
+ target_sd->sem_ctime = tswapal(host_sd->sem_ctime);
+ unlock_user_struct(target_sd, target_addr, 1);
+ return 0;
+}
+
+struct target_seminfo {
+ int semmap;
+ int semmni;
+ int semmns;
+ int semmnu;
+ int semmsl;
+ int semopm;
+ int semume;
+ int semusz;
+ int semvmx;
+ int semaem;
+};
+
+static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
+ struct seminfo *host_seminfo)
+{
+ struct target_seminfo *target_seminfo;
+ if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
+ return -TARGET_EFAULT;
+ __put_user(host_seminfo->semmap, &target_seminfo->semmap);
+ __put_user(host_seminfo->semmni, &target_seminfo->semmni);
+ __put_user(host_seminfo->semmns, &target_seminfo->semmns);
+ __put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
+ __put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
+ __put_user(host_seminfo->semopm, &target_seminfo->semopm);
+ __put_user(host_seminfo->semume, &target_seminfo->semume);
+ __put_user(host_seminfo->semusz, &target_seminfo->semusz);
+ __put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
+ __put_user(host_seminfo->semaem, &target_seminfo->semaem);
+ unlock_user_struct(target_seminfo, target_addr, 1);
+ return 0;
+}
+
+union semun {
+ int val;
+ struct semid_ds *buf;
+ unsigned short *array;
+ struct seminfo *__buf;
+};
+
+union target_semun {
+ int val;
+ abi_ulong buf;
+ abi_ulong array;
+ abi_ulong __buf;
+};
+
+static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
+ abi_ulong target_addr)
+{
+ int nsems;
+ unsigned short *array;
+ union semun semun;
+ struct semid_ds semid_ds;
+ int i, ret;
+
+ semun.buf = &semid_ds;
+
+ ret = semctl(semid, 0, IPC_STAT, semun);
+ if (ret == -1)
+ return get_errno(ret);
+
+ nsems = semid_ds.sem_nsems;
+
+ *host_array = malloc(nsems*sizeof(unsigned short));
+ if (!*host_array) {
+ return -TARGET_ENOMEM;
+ }
+ array = lock_user(VERIFY_READ, target_addr,
+ nsems*sizeof(unsigned short), 1);
+ if (!array) {
+ free(*host_array);
+ return -TARGET_EFAULT;
+ }
+
+ for(i=0; i<nsems; i++) {
+ __get_user((*host_array)[i], &array[i]);
+ }
+ unlock_user(array, target_addr, 0);
+
+ return 0;
+}
+
+static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
+ unsigned short **host_array)
+{
+ int nsems;
+ unsigned short *array;
+ union semun semun;
+ struct semid_ds semid_ds;
+ int i, ret;
+
+ semun.buf = &semid_ds;
+
+ ret = semctl(semid, 0, IPC_STAT, semun);
+ if (ret == -1)
+ return get_errno(ret);
+
+ nsems = semid_ds.sem_nsems;
+
+ array = lock_user(VERIFY_WRITE, target_addr,
+ nsems*sizeof(unsigned short), 0);
+ if (!array)
+ return -TARGET_EFAULT;
+
+ for(i=0; i<nsems; i++) {
+ __put_user((*host_array)[i], &array[i]);
+ }
+ free(*host_array);
+ unlock_user(array, target_addr, 1);
+
+ return 0;
+}
+
+static inline abi_long do_semctl(int semid, int semnum, int cmd,
+ union target_semun target_su)
+{
+ union semun arg;
+ struct semid_ds dsarg;
+ unsigned short *array = NULL;
+ struct seminfo seminfo;
+ abi_long ret = -TARGET_EINVAL;
+ abi_long err;
+ cmd &= 0xff;
+
+ switch( cmd ) {
+ case GETVAL:
+ case SETVAL:
+ /* In 64 bit cross-endian situations, we will erroneously pick up
+ * the wrong half of the union for the "val" element. To rectify
+ * this, the entire 8-byte structure is byteswapped, followed by
+ * a swap of the 4 byte val field. In other cases, the data is
+ * already in proper host byte order. */
+ if (sizeof(target_su.val) != (sizeof(target_su.buf))) {
+ target_su.buf = tswapal(target_su.buf);
+ arg.val = tswap32(target_su.val);
+ } else {
+ arg.val = target_su.val;
+ }
+ ret = get_errno(semctl(semid, semnum, cmd, arg));
+ break;
+ case GETALL:
+ case SETALL:
+ err = target_to_host_semarray(semid, &array, target_su.array);
+ if (err)
+ return err;
+ arg.array = array;
+ ret = get_errno(semctl(semid, semnum, cmd, arg));
+ err = host_to_target_semarray(semid, target_su.array, &array);
+ if (err)
+ return err;
+ break;
+ case IPC_STAT:
+ case IPC_SET:
+ case SEM_STAT:
+ err = target_to_host_semid_ds(&dsarg, target_su.buf);
+ if (err)
+ return err;
+ arg.buf = &dsarg;
+ ret = get_errno(semctl(semid, semnum, cmd, arg));
+ err = host_to_target_semid_ds(target_su.buf, &dsarg);
+ if (err)
+ return err;
+ break;
+ case IPC_INFO:
+ case SEM_INFO:
+ arg.__buf = &seminfo;
+ ret = get_errno(semctl(semid, semnum, cmd, arg));
+ err = host_to_target_seminfo(target_su.__buf, &seminfo);
+ if (err)
+ return err;
+ break;
+ case IPC_RMID:
+ case GETPID:
+ case GETNCNT:
+ case GETZCNT:
+ ret = get_errno(semctl(semid, semnum, cmd, NULL));
+ break;
+ }
+
+ return ret;
+}
+
+struct target_sembuf {
+ unsigned short sem_num;
+ short sem_op;
+ short sem_flg;
+};
+
+static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
+ abi_ulong target_addr,
+ unsigned nsops)
+{
+ struct target_sembuf *target_sembuf;
+ int i;
+
+ target_sembuf = lock_user(VERIFY_READ, target_addr,
+ nsops*sizeof(struct target_sembuf), 1);
+ if (!target_sembuf)
+ return -TARGET_EFAULT;
+
+ for(i=0; i<nsops; i++) {
+ __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
+ __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
+ __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
+ }
+
+ unlock_user(target_sembuf, target_addr, 0);
+
+ return 0;
+}
+
+static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops)
+{
+ struct sembuf sops[nsops];
+
+ if (target_to_host_sembuf(sops, ptr, nsops))
+ return -TARGET_EFAULT;
+
+ return get_errno(semop(semid, sops, nsops));
+}
+
+struct target_msqid_ds
+{
+ struct target_ipc_perm msg_perm;
+ abi_ulong msg_stime;
+#if TARGET_ABI_BITS == 32
+ abi_ulong __unused1;
+#endif
+ abi_ulong msg_rtime;
+#if TARGET_ABI_BITS == 32
+ abi_ulong __unused2;
+#endif
+ abi_ulong msg_ctime;
+#if TARGET_ABI_BITS == 32
+ abi_ulong __unused3;
+#endif
+ abi_ulong __msg_cbytes;
+ abi_ulong msg_qnum;
+ abi_ulong msg_qbytes;
+ abi_ulong msg_lspid;
+ abi_ulong msg_lrpid;
+ abi_ulong __unused4;
+ abi_ulong __unused5;
+};
+
+static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
+ abi_ulong target_addr)
+{
+ struct target_msqid_ds *target_md;
+
+ if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
+ return -TARGET_EFAULT;
+ if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
+ return -TARGET_EFAULT;
+ host_md->msg_stime = tswapal(target_md->msg_stime);
+ host_md->msg_rtime = tswapal(target_md->msg_rtime);
+ host_md->msg_ctime = tswapal(target_md->msg_ctime);
+ host_md->__msg_cbytes = tswapal(target_md->__msg_cbytes);
+ host_md->msg_qnum = tswapal(target_md->msg_qnum);
+ host_md->msg_qbytes = tswapal(target_md->msg_qbytes);
+ host_md->msg_lspid = tswapal(target_md->msg_lspid);
+ host_md->msg_lrpid = tswapal(target_md->msg_lrpid);
+ unlock_user_struct(target_md, target_addr, 0);
+ return 0;
+}
+
+static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
+ struct msqid_ds *host_md)
+{
+ struct target_msqid_ds *target_md;
+
+ if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
+ return -TARGET_EFAULT;
+ if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
+ return -TARGET_EFAULT;
+ target_md->msg_stime = tswapal(host_md->msg_stime);
+ target_md->msg_rtime = tswapal(host_md->msg_rtime);
+ target_md->msg_ctime = tswapal(host_md->msg_ctime);
+ target_md->__msg_cbytes = tswapal(host_md->__msg_cbytes);
+ target_md->msg_qnum = tswapal(host_md->msg_qnum);
+ target_md->msg_qbytes = tswapal(host_md->msg_qbytes);
+ target_md->msg_lspid = tswapal(host_md->msg_lspid);
+ target_md->msg_lrpid = tswapal(host_md->msg_lrpid);
+ unlock_user_struct(target_md, target_addr, 1);
+ return 0;
+}
+
+struct target_msginfo {
+ int msgpool;
+ int msgmap;
+ int msgmax;
+ int msgmnb;
+ int msgmni;
+ int msgssz;
+ int msgtql;
+ unsigned short int msgseg;
+};
+
+static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
+ struct msginfo *host_msginfo)
+{
+ struct target_msginfo *target_msginfo;
+ if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
+ return -TARGET_EFAULT;
+ __put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
+ __put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
+ __put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
+ __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
+ __put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
+ __put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
+ __put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
+ __put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
+ unlock_user_struct(target_msginfo, target_addr, 1);
+ return 0;
+}
+
+static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
+{
+ struct msqid_ds dsarg;
+ struct msginfo msginfo;
+ abi_long ret = -TARGET_EINVAL;
+
+ cmd &= 0xff;
+
+ switch (cmd) {
+ case IPC_STAT:
+ case IPC_SET:
+ case MSG_STAT:
+ if (target_to_host_msqid_ds(&dsarg,ptr))
+ return -TARGET_EFAULT;
+ ret = get_errno(msgctl(msgid, cmd, &dsarg));
+ if (host_to_target_msqid_ds(ptr,&dsarg))
+ return -TARGET_EFAULT;
+ break;
+ case IPC_RMID:
+ ret = get_errno(msgctl(msgid, cmd, NULL));
+ break;
+ case IPC_INFO:
+ case MSG_INFO:
+ ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
+ if (host_to_target_msginfo(ptr, &msginfo))
+ return -TARGET_EFAULT;
+ break;
+ }
+
+ return ret;
+}
+
+struct target_msgbuf {
+ abi_long mtype;
+ char mtext[1];
+};
+
+static inline abi_long do_msgsnd(int msqid, abi_long msgp,
+ ssize_t msgsz, int msgflg)
+{
+ struct target_msgbuf *target_mb;
+ struct msgbuf *host_mb;
+ abi_long ret = 0;
+
+ if (msgsz < 0) {
+ return -TARGET_EINVAL;
+ }
+
+ if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
+ return -TARGET_EFAULT;
+ host_mb = malloc(msgsz+sizeof(long));
+ if (!host_mb) {
+ unlock_user_struct(target_mb, msgp, 0);
+ return -TARGET_ENOMEM;
+ }
+ host_mb->mtype = (abi_long) tswapal(target_mb->mtype);
+ memcpy(host_mb->mtext, target_mb->mtext, msgsz);
+ ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));
+ free(host_mb);
+ unlock_user_struct(target_mb, msgp, 0);
+
+ return ret;
+}
+
+static inline abi_long do_msgrcv(int msqid, abi_long msgp,
+ unsigned int msgsz, abi_long msgtyp,
+ int msgflg)
+{
+ struct target_msgbuf *target_mb;
+ char *target_mtext;
+ struct msgbuf *host_mb;
+ abi_long ret = 0;
+
+ if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
+ return -TARGET_EFAULT;
+
+ host_mb = g_malloc(msgsz+sizeof(long));
+ ret = get_errno(msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg));
+
+ if (ret > 0) {
+ abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
+ target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
+ if (!target_mtext) {
+ ret = -TARGET_EFAULT;
+ goto end;
+ }
+ memcpy(target_mb->mtext, host_mb->mtext, ret);
+ unlock_user(target_mtext, target_mtext_addr, ret);
+ }
+
+ target_mb->mtype = tswapal(host_mb->mtype);
+
+end:
+ if (target_mb)
+ unlock_user_struct(target_mb, msgp, 1);
+ g_free(host_mb);
+ return ret;
+}
+
+static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
+ abi_ulong target_addr)
+{
+ struct target_shmid_ds *target_sd;
+
+ if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
+ return -TARGET_EFAULT;
+ if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr))
+ return -TARGET_EFAULT;
+ __get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
+ __get_user(host_sd->shm_atime, &target_sd->shm_atime);
+ __get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
+ __get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
+ __get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
+ __get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
+ __get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
+ unlock_user_struct(target_sd, target_addr, 0);
+ return 0;
+}
+
+static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr,
+ struct shmid_ds *host_sd)
+{
+ struct target_shmid_ds *target_sd;
+
+ if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
+ return -TARGET_EFAULT;
+ if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm)))
+ return -TARGET_EFAULT;
+ __put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
+ __put_user(host_sd->shm_atime, &target_sd->shm_atime);
+ __put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
+ __put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
+ __put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
+ __put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
+ __put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
+ unlock_user_struct(target_sd, target_addr, 1);
+ return 0;
+}
+
+struct target_shminfo {
+ abi_ulong shmmax;
+ abi_ulong shmmin;
+ abi_ulong shmmni;
+ abi_ulong shmseg;
+ abi_ulong shmall;
+};
+
+static inline abi_long host_to_target_shminfo(abi_ulong target_addr,
+ struct shminfo *host_shminfo)
+{
+ struct target_shminfo *target_shminfo;
+ if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0))
+ return -TARGET_EFAULT;
+ __put_user(host_shminfo->shmmax, &target_shminfo->shmmax);
+ __put_user(host_shminfo->shmmin, &target_shminfo->shmmin);
+ __put_user(host_shminfo->shmmni, &target_shminfo->shmmni);
+ __put_user(host_shminfo->shmseg, &target_shminfo->shmseg);
+ __put_user(host_shminfo->shmall, &target_shminfo->shmall);
+ unlock_user_struct(target_shminfo, target_addr, 1);
+ return 0;
+}
+
+struct target_shm_info {
+ int used_ids;
+ abi_ulong shm_tot;
+ abi_ulong shm_rss;
+ abi_ulong shm_swp;
+ abi_ulong swap_attempts;
+ abi_ulong swap_successes;
+};
+
+static inline abi_long host_to_target_shm_info(abi_ulong target_addr,
+ struct shm_info *host_shm_info)
+{
+ struct target_shm_info *target_shm_info;
+ if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0))
+ return -TARGET_EFAULT;
+ __put_user(host_shm_info->used_ids, &target_shm_info->used_ids);
+ __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot);
+ __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss);
+ __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp);
+ __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts);
+ __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes);
+ unlock_user_struct(target_shm_info, target_addr, 1);
+ return 0;
+}
+
+static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf)
+{
+ struct shmid_ds dsarg;
+ struct shminfo shminfo;
+ struct shm_info shm_info;
+ abi_long ret = -TARGET_EINVAL;
+
+ cmd &= 0xff;
+
+ switch(cmd) {
+ case IPC_STAT:
+ case IPC_SET:
+ case SHM_STAT:
+ if (target_to_host_shmid_ds(&dsarg, buf))
+ return -TARGET_EFAULT;
+ ret = get_errno(shmctl(shmid, cmd, &dsarg));
+ if (host_to_target_shmid_ds(buf, &dsarg))
+ return -TARGET_EFAULT;
+ break;
+ case IPC_INFO:
+ ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo));
+ if (host_to_target_shminfo(buf, &shminfo))
+ return -TARGET_EFAULT;
+ break;
+ case SHM_INFO:
+ ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info));
+ if (host_to_target_shm_info(buf, &shm_info))
+ return -TARGET_EFAULT;
+ break;
+ case IPC_RMID:
+ case SHM_LOCK:
+ case SHM_UNLOCK:
+ ret = get_errno(shmctl(shmid, cmd, NULL));
+ break;
+ }
+
+ return ret;
+}
+
+static inline abi_ulong do_shmat(int shmid, abi_ulong shmaddr, int shmflg)
+{
+ abi_long raddr;
+ void *host_raddr;
+ struct shmid_ds shm_info;
+ int i,ret;
+
+ /* find out the length of the shared memory segment */
+ ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info));
+ if (is_error(ret)) {
+ /* can't get length, bail out */
+ return ret;
+ }
+
+ mmap_lock();
+
+ if (shmaddr)
+ host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg);
+ else {
+ abi_ulong mmap_start;
+
+ mmap_start = mmap_find_vma(0, shm_info.shm_segsz);
+
+ if (mmap_start == -1) {
+ errno = ENOMEM;
+ host_raddr = (void *)-1;
+ } else
+ host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP);
+ }
+
+ if (host_raddr == (void *)-1) {
+ mmap_unlock();
+ return get_errno((long)host_raddr);
+ }
+ raddr=h2g((unsigned long)host_raddr);
+
+ page_set_flags(raddr, raddr + shm_info.shm_segsz,
+ PAGE_VALID | PAGE_READ |
+ ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE));
+
+ for (i = 0; i < N_SHM_REGIONS; i++) {
+ if (shm_regions[i].start == 0) {
+ shm_regions[i].start = raddr;
+ shm_regions[i].size = shm_info.shm_segsz;
+ break;
+ }
+ }
+
+ mmap_unlock();
+ return raddr;
+
+}
+
+static inline abi_long do_shmdt(abi_ulong shmaddr)
+{
+ int i;
+
+ for (i = 0; i < N_SHM_REGIONS; ++i) {
+ if (shm_regions[i].start == shmaddr) {
+ shm_regions[i].start = 0;
+ page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0);
+ break;
+ }
+ }
+
+ return get_errno(shmdt(g2h(shmaddr)));
+}
+
+#ifdef TARGET_NR_ipc
+/* ??? This only works with linear mappings. */
+/* do_ipc() must return target values and target errnos. */
+static abi_long do_ipc(unsigned int call, abi_long first,
+ abi_long second, abi_long third,
+ abi_long ptr, abi_long fifth)
+{
+ int version;
+ abi_long ret = 0;
+
+ version = call >> 16;
+ call &= 0xffff;
+
+ switch (call) {
+ case IPCOP_semop:
+ ret = do_semop(first, ptr, second);
+ break;
+
+ case IPCOP_semget:
+ ret = get_errno(semget(first, second, third));
+ break;
+
+ case IPCOP_semctl: {
+ /* The semun argument to semctl is passed by value, so dereference the
+ * ptr argument. */
+ abi_ulong atptr;
+ get_user_ual(atptr, ptr);
+ ret = do_semctl(first, second, third,
+ (union target_semun) atptr);
+ break;
+ }
+
+ case IPCOP_msgget:
+ ret = get_errno(msgget(first, second));
+ break;
+
+ case IPCOP_msgsnd:
+ ret = do_msgsnd(first, ptr, second, third);
+ break;
+
+ case IPCOP_msgctl:
+ ret = do_msgctl(first, second, ptr);
+ break;
+
+ case IPCOP_msgrcv:
+ switch (version) {
+ case 0:
+ {
+ struct target_ipc_kludge {
+ abi_long msgp;
+ abi_long msgtyp;
+ } *tmp;
+
+ if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
+ ret = -TARGET_EFAULT;
+ break;
+ }
+
+ ret = do_msgrcv(first, tswapal(tmp->msgp), second, tswapal(tmp->msgtyp), third);
+
+ unlock_user_struct(tmp, ptr, 0);
+ break;
+ }
+ default:
+ ret = do_msgrcv(first, ptr, second, fifth, third);
+ }
+ break;
+
+ case IPCOP_shmat:
+ switch (version) {
+ default:
+ {
+ abi_ulong raddr;
+ raddr = do_shmat(first, ptr, second);
+ if (is_error(raddr))
+ return get_errno(raddr);
+ if (put_user_ual(raddr, third))
+ return -TARGET_EFAULT;
+ break;
+ }
+ case 1:
+ ret = -TARGET_EINVAL;
+ break;
+ }
+ break;
+ case IPCOP_shmdt:
+ ret = do_shmdt(ptr);
+ break;
+
+ case IPCOP_shmget:
+ /* IPC_* flag values are the same on all linux platforms */
+ ret = get_errno(shmget(first, second, third));
+ break;
+
+ /* IPC_* and SHM_* command values are the same on all linux platforms */
+ case IPCOP_shmctl:
+ ret = do_shmctl(first, second, ptr);
+ break;
+ default:
+ gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
+ ret = -TARGET_ENOSYS;
+ break;
+ }
+ return ret;
+}
+#endif
+
+/* kernel structure types definitions */
+
+#define STRUCT(name, ...) STRUCT_ ## name,
+#define STRUCT_SPECIAL(name) STRUCT_ ## name,
+enum {
+#include "syscall_types.h"
+STRUCT_MAX
+};
+#undef STRUCT
+#undef STRUCT_SPECIAL
+
+#define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
+#define STRUCT_SPECIAL(name)
+#include "syscall_types.h"
+#undef STRUCT
+#undef STRUCT_SPECIAL
+
+typedef struct IOCTLEntry IOCTLEntry;
+
+typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp,
+ int fd, int cmd, abi_long arg);
+
+struct IOCTLEntry {
+ int target_cmd;
+ unsigned int host_cmd;
+ const char *name;
+ int access;
+ do_ioctl_fn *do_ioctl;
+ const argtype arg_type[5];
+};
+
+#define IOC_R 0x0001
+#define IOC_W 0x0002
+#define IOC_RW (IOC_R | IOC_W)
+
+#define MAX_STRUCT_SIZE 4096
+
+#ifdef CONFIG_FIEMAP
+/* So fiemap access checks don't overflow on 32 bit systems.
+ * This is very slightly smaller than the limit imposed by
+ * the underlying kernel.
+ */
+#define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \
+ / sizeof(struct fiemap_extent))
+
+static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp,
+ int fd, int cmd, abi_long arg)
+{
+ /* The parameter for this ioctl is a struct fiemap followed
+ * by an array of struct fiemap_extent whose size is set
+ * in fiemap->fm_extent_count. The array is filled in by the
+ * ioctl.
+ */
+ int target_size_in, target_size_out;
+ struct fiemap *fm;
+ const argtype *arg_type = ie->arg_type;
+ const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) };
+ void *argptr, *p;
+ abi_long ret;
+ int i, extent_size = thunk_type_size(extent_arg_type, 0);
+ uint32_t outbufsz;
+ int free_fm = 0;
+
+ assert(arg_type[0] == TYPE_PTR);
+ assert(ie->access == IOC_RW);
+ arg_type++;
+ target_size_in = thunk_type_size(arg_type, 0);
+ argptr = lock_user(VERIFY_READ, arg, target_size_in, 1);
+ if (!argptr) {
+ return -TARGET_EFAULT;
+ }
+ thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
+ unlock_user(argptr, arg, 0);
+ fm = (struct fiemap *)buf_temp;
+ if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) {
+ return -TARGET_EINVAL;
+ }
+
+ outbufsz = sizeof (*fm) +
+ (sizeof(struct fiemap_extent) * fm->fm_extent_count);
+
+ if (outbufsz > MAX_STRUCT_SIZE) {
+ /* We can't fit all the extents into the fixed size buffer.
+ * Allocate one that is large enough and use it instead.
+ */
+ fm = malloc(outbufsz);
+ if (!fm) {
+ return -TARGET_ENOMEM;
+ }
+ memcpy(fm, buf_temp, sizeof(struct fiemap));
+ free_fm = 1;
+ }
+ ret = get_errno(ioctl(fd, ie->host_cmd, fm));
+ if (!is_error(ret)) {
+ target_size_out = target_size_in;
+ /* An extent_count of 0 means we were only counting the extents
+ * so there are no structs to copy
+ */
+ if (fm->fm_extent_count != 0) {
+ target_size_out += fm->fm_mapped_extents * extent_size;
+ }
+ argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0);
+ if (!argptr) {
+ ret = -TARGET_EFAULT;
+ } else {
+ /* Convert the struct fiemap */
+ thunk_convert(argptr, fm, arg_type, THUNK_TARGET);
+ if (fm->fm_extent_count != 0) {
+ p = argptr + target_size_in;
+ /* ...and then all the struct fiemap_extents */
+ for (i = 0; i < fm->fm_mapped_extents; i++) {
+ thunk_convert(p, &fm->fm_extents[i], extent_arg_type,
+ THUNK_TARGET);
+ p += extent_size;
+ }
+ }
+ unlock_user(argptr, arg, target_size_out);
+ }
+ }
+ if (free_fm) {
+ free(fm);
+ }
+ return ret;
+}
+#endif
+
+static abi_long do_ioctl_ifconf(const IOCTLEntry *ie, uint8_t *buf_temp,
+ int fd, int cmd, abi_long arg)
+{
+ const argtype *arg_type = ie->arg_type;
+ int target_size;
+ void *argptr;
+ int ret;
+ struct ifconf *host_ifconf;
+ uint32_t outbufsz;
+ const argtype ifreq_arg_type[] = { MK_STRUCT(STRUCT_sockaddr_ifreq) };
+ int target_ifreq_size;
+ int nb_ifreq;
+ int free_buf = 0;
+ int i;
+ int target_ifc_len;
+ abi_long target_ifc_buf;
+ int host_ifc_len;
+ char *host_ifc_buf;
+
+ assert(arg_type[0] == TYPE_PTR);
+ assert(ie->access == IOC_RW);
+
+ arg_type++;
+ target_size = thunk_type_size(arg_type, 0);
+
+ argptr = lock_user(VERIFY_READ, arg, target_size, 1);
+ if (!argptr)
+ return -TARGET_EFAULT;
+ thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
+ unlock_user(argptr, arg, 0);
+
+ host_ifconf = (struct ifconf *)(unsigned long)buf_temp;
+ target_ifc_len = host_ifconf->ifc_len;
+ target_ifc_buf = (abi_long)(unsigned long)host_ifconf->ifc_buf;
+
+ target_ifreq_size = thunk_type_size(ifreq_arg_type, 0);
+ nb_ifreq = target_ifc_len / target_ifreq_size;
+ host_ifc_len = nb_ifreq * sizeof(struct ifreq);
+
+ outbufsz = sizeof(*host_ifconf) + host_ifc_len;
+ if (outbufsz > MAX_STRUCT_SIZE) {
+ /* We can't fit all the extents into the fixed size buffer.
+ * Allocate one that is large enough and use it instead.
+ */
+ host_ifconf = malloc(outbufsz);
+ if (!host_ifconf) {
+ return -TARGET_ENOMEM;
+ }
+ memcpy(host_ifconf, buf_temp, sizeof(*host_ifconf));
+ free_buf = 1;
+ }
+ host_ifc_buf = (char*)host_ifconf + sizeof(*host_ifconf);
+
+ host_ifconf->ifc_len = host_ifc_len;
+ host_ifconf->ifc_buf = host_ifc_buf;
+
+ ret = get_errno(ioctl(fd, ie->host_cmd, host_ifconf));
+ if (!is_error(ret)) {
+ /* convert host ifc_len to target ifc_len */
+
+ nb_ifreq = host_ifconf->ifc_len / sizeof(struct ifreq);
+ target_ifc_len = nb_ifreq * target_ifreq_size;
+ host_ifconf->ifc_len = target_ifc_len;
+
+ /* restore target ifc_buf */
+
+ host_ifconf->ifc_buf = (char *)(unsigned long)target_ifc_buf;
+
+ /* copy struct ifconf to target user */
+
+ argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
+ if (!argptr)
+ return -TARGET_EFAULT;
+ thunk_convert(argptr, host_ifconf, arg_type, THUNK_TARGET);
+ unlock_user(argptr, arg, target_size);
+
+ /* copy ifreq[] to target user */
+
+ argptr = lock_user(VERIFY_WRITE, target_ifc_buf, target_ifc_len, 0);
+ for (i = 0; i < nb_ifreq ; i++) {
+ thunk_convert(argptr + i * target_ifreq_size,
+ host_ifc_buf + i * sizeof(struct ifreq),
+ ifreq_arg_type, THUNK_TARGET);
+ }
+ unlock_user(argptr, target_ifc_buf, target_ifc_len);
+ }
+
+ if (free_buf) {
+ free(host_ifconf);
+ }
+
+ return ret;
+}
+
+static abi_long do_ioctl_dm(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
+ int cmd, abi_long arg)
+{
+ void *argptr;
+ struct dm_ioctl *host_dm;
+ abi_long guest_data;
+ uint32_t guest_data_size;
+ int target_size;
+ const argtype *arg_type = ie->arg_type;
+ abi_long ret;
+ void *big_buf = NULL;
+ char *host_data;
+
+ arg_type++;
+ target_size = thunk_type_size(arg_type, 0);
+ argptr = lock_user(VERIFY_READ, arg, target_size, 1);
+ if (!argptr) {
+ ret = -TARGET_EFAULT;
+ goto out;
+ }
+ thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
+ unlock_user(argptr, arg, 0);
+
+ /* buf_temp is too small, so fetch things into a bigger buffer */
+ big_buf = g_malloc0(((struct dm_ioctl*)buf_temp)->data_size * 2);
+ memcpy(big_buf, buf_temp, target_size);
+ buf_temp = big_buf;
+ host_dm = big_buf;
+
+ guest_data = arg + host_dm->data_start;
+ if ((guest_data - arg) < 0) {
+ ret = -EINVAL;
+ goto out;
+ }
+ guest_data_size = host_dm->data_size - host_dm->data_start;
+ host_data = (char*)host_dm + host_dm->data_start;
+
+ argptr = lock_user(VERIFY_READ, guest_data, guest_data_size, 1);
+ switch (ie->host_cmd) {
+ case DM_REMOVE_ALL:
+ case DM_LIST_DEVICES:
+ case DM_DEV_CREATE:
+ case DM_DEV_REMOVE:
+ case DM_DEV_SUSPEND:
+ case DM_DEV_STATUS:
+ case DM_DEV_WAIT:
+ case DM_TABLE_STATUS:
+ case DM_TABLE_CLEAR:
+ case DM_TABLE_DEPS:
+ case DM_LIST_VERSIONS:
+ /* no input data */
+ break;
+ case DM_DEV_RENAME:
+ case DM_DEV_SET_GEOMETRY:
+ /* data contains only strings */
+ memcpy(host_data, argptr, guest_data_size);
+ break;
+ case DM_TARGET_MSG:
+ memcpy(host_data, argptr, guest_data_size);
+ *(uint64_t*)host_data = tswap64(*(uint64_t*)argptr);
+ break;
+ case DM_TABLE_LOAD:
+ {
+ void *gspec = argptr;
+ void *cur_data = host_data;
+ const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
+ int spec_size = thunk_type_size(arg_type, 0);
+ int i;
+
+ for (i = 0; i < host_dm->target_count; i++) {
+ struct dm_target_spec *spec = cur_data;
+ uint32_t next;
+ int slen;
+
+ thunk_convert(spec, gspec, arg_type, THUNK_HOST);
+ slen = strlen((char*)gspec + spec_size) + 1;
+ next = spec->next;
+ spec->next = sizeof(*spec) + slen;
+ strcpy((char*)&spec[1], gspec + spec_size);
+ gspec += next;
+ cur_data += spec->next;
+ }
+ break;
+ }
+ default:
+ ret = -TARGET_EINVAL;
+ unlock_user(argptr, guest_data, 0);
+ goto out;
+ }
+ unlock_user(argptr, guest_data, 0);
+
+ ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
+ if (!is_error(ret)) {
+ guest_data = arg + host_dm->data_start;
+ guest_data_size = host_dm->data_size - host_dm->data_start;
+ argptr = lock_user(VERIFY_WRITE, guest_data, guest_data_size, 0);
+ switch (ie->host_cmd) {
+ case DM_REMOVE_ALL:
+ case DM_DEV_CREATE:
+ case DM_DEV_REMOVE:
+ case DM_DEV_RENAME:
+ case DM_DEV_SUSPEND:
+ case DM_DEV_STATUS:
+ case DM_TABLE_LOAD:
+ case DM_TABLE_CLEAR:
+ case DM_TARGET_MSG:
+ case DM_DEV_SET_GEOMETRY:
+ /* no return data */
+ break;
+ case DM_LIST_DEVICES:
+ {
+ struct dm_name_list *nl = (void*)host_dm + host_dm->data_start;
+ uint32_t remaining_data = guest_data_size;
+ void *cur_data = argptr;
+ const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_name_list) };
+ int nl_size = 12; /* can't use thunk_size due to alignment */
+
+ while (1) {
+ uint32_t next = nl->next;
+ if (next) {
+ nl->next = nl_size + (strlen(nl->name) + 1);
+ }
+ if (remaining_data < nl->next) {
+ host_dm->flags |= DM_BUFFER_FULL_FLAG;
+ break;
+ }
+ thunk_convert(cur_data, nl, arg_type, THUNK_TARGET);
+ strcpy(cur_data + nl_size, nl->name);
+ cur_data += nl->next;
+ remaining_data -= nl->next;
+ if (!next) {
+ break;
+ }
+ nl = (void*)nl + next;
+ }
+ break;
+ }
+ case DM_DEV_WAIT:
+ case DM_TABLE_STATUS:
+ {
+ struct dm_target_spec *spec = (void*)host_dm + host_dm->data_start;
+ void *cur_data = argptr;
+ const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
+ int spec_size = thunk_type_size(arg_type, 0);
+ int i;
+
+ for (i = 0; i < host_dm->target_count; i++) {
+ uint32_t next = spec->next;
+ int slen = strlen((char*)&spec[1]) + 1;
+ spec->next = (cur_data - argptr) + spec_size + slen;
+ if (guest_data_size < spec->next) {
+ host_dm->flags |= DM_BUFFER_FULL_FLAG;
+ break;
+ }
+ thunk_convert(cur_data, spec, arg_type, THUNK_TARGET);
+ strcpy(cur_data + spec_size, (char*)&spec[1]);
+ cur_data = argptr + spec->next;
+ spec = (void*)host_dm + host_dm->data_start + next;
+ }
+ break;
+ }
+ case DM_TABLE_DEPS:
+ {
+ void *hdata = (void*)host_dm + host_dm->data_start;
+ int count = *(uint32_t*)hdata;
+ uint64_t *hdev = hdata + 8;
+ uint64_t *gdev = argptr + 8;
+ int i;
+
+ *(uint32_t*)argptr = tswap32(count);
+ for (i = 0; i < count; i++) {
+ *gdev = tswap64(*hdev);
+ gdev++;
+ hdev++;
+ }
+ break;
+ }
+ case DM_LIST_VERSIONS:
+ {
+ struct dm_target_versions *vers = (void*)host_dm + host_dm->data_start;
+ uint32_t remaining_data = guest_data_size;
+ void *cur_data = argptr;
+ const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_versions) };
+ int vers_size = thunk_type_size(arg_type, 0);
+
+ while (1) {
+ uint32_t next = vers->next;
+ if (next) {
+ vers->next = vers_size + (strlen(vers->name) + 1);
+ }
+ if (remaining_data < vers->next) {
+ host_dm->flags |= DM_BUFFER_FULL_FLAG;
+ break;
+ }
+ thunk_convert(cur_data, vers, arg_type, THUNK_TARGET);
+ strcpy(cur_data + vers_size, vers->name);
+ cur_data += vers->next;
+ remaining_data -= vers->next;
+ if (!next) {
+ break;
+ }
+ vers = (void*)vers + next;
+ }
+ break;
+ }
+ default:
+ unlock_user(argptr, guest_data, 0);
+ ret = -TARGET_EINVAL;
+ goto out;
+ }
+ unlock_user(argptr, guest_data, guest_data_size);
+
+ argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
+ if (!argptr) {
+ ret = -TARGET_EFAULT;
+ goto out;
+ }
+ thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
+ unlock_user(argptr, arg, target_size);
+ }
+out:
+ g_free(big_buf);
+ return ret;
+}
+
+static abi_long do_ioctl_blkpg(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
+ int cmd, abi_long arg)
+{
+ void *argptr;
+ int target_size;
+ const argtype *arg_type = ie->arg_type;
+ const argtype part_arg_type[] = { MK_STRUCT(STRUCT_blkpg_partition) };
+ abi_long ret;
+
+ struct blkpg_ioctl_arg *host_blkpg = (void*)buf_temp;
+ struct blkpg_partition host_part;
+
+ /* Read and convert blkpg */
+ arg_type++;
+ target_size = thunk_type_size(arg_type, 0);
+ argptr = lock_user(VERIFY_READ, arg, target_size, 1);
+ if (!argptr) {
+ ret = -TARGET_EFAULT;
+ goto out;
+ }
+ thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
+ unlock_user(argptr, arg, 0);
+
+ switch (host_blkpg->op) {
+ case BLKPG_ADD_PARTITION:
+ case BLKPG_DEL_PARTITION:
+ /* payload is struct blkpg_partition */
+ break;
+ default:
+ /* Unknown opcode */
+ ret = -TARGET_EINVAL;
+ goto out;
+ }
+
+ /* Read and convert blkpg->data */
+ arg = (abi_long)(uintptr_t)host_blkpg->data;
+ target_size = thunk_type_size(part_arg_type, 0);
+ argptr = lock_user(VERIFY_READ, arg, target_size, 1);
+ if (!argptr) {
+ ret = -TARGET_EFAULT;
+ goto out;
+ }
+ thunk_convert(&host_part, argptr, part_arg_type, THUNK_HOST);
+ unlock_user(argptr, arg, 0);
+
+ /* Swizzle the data pointer to our local copy and call! */
+ host_blkpg->data = &host_part;
+ ret = get_errno(ioctl(fd, ie->host_cmd, host_blkpg));
+
+out:
+ return ret;
+}
+
+static abi_long do_ioctl_rt(const IOCTLEntry *ie, uint8_t *buf_temp,
+ int fd, int cmd, abi_long arg)
+{
+ const argtype *arg_type = ie->arg_type;
+ const StructEntry *se;
+ const argtype *field_types;
+ const int *dst_offsets, *src_offsets;
+ int target_size;
+ void *argptr;
+ abi_ulong *target_rt_dev_ptr;
+ unsigned long *host_rt_dev_ptr;
+ abi_long ret;
+ int i;
+
+ assert(ie->access == IOC_W);
+ assert(*arg_type == TYPE_PTR);
+ arg_type++;
+ assert(*arg_type == TYPE_STRUCT);
+ target_size = thunk_type_size(arg_type, 0);
+ argptr = lock_user(VERIFY_READ, arg, target_size, 1);
+ if (!argptr) {
+ return -TARGET_EFAULT;
+ }
+ arg_type++;
+ assert(*arg_type == (int)STRUCT_rtentry);
+ se = struct_entries + *arg_type++;
+ assert(se->convert[0] == NULL);
+ /* convert struct here to be able to catch rt_dev string */
+ field_types = se->field_types;
+ dst_offsets = se->field_offsets[THUNK_HOST];
+ src_offsets = se->field_offsets[THUNK_TARGET];
+ for (i = 0; i < se->nb_fields; i++) {
+ if (dst_offsets[i] == offsetof(struct rtentry, rt_dev)) {
+ assert(*field_types == TYPE_PTRVOID);
+ target_rt_dev_ptr = (abi_ulong *)(argptr + src_offsets[i]);
+ host_rt_dev_ptr = (unsigned long *)(buf_temp + dst_offsets[i]);
+ if (*target_rt_dev_ptr != 0) {
+ *host_rt_dev_ptr = (unsigned long)lock_user_string(
+ tswapal(*target_rt_dev_ptr));
+ if (!*host_rt_dev_ptr) {
+ unlock_user(argptr, arg, 0);
+ return -TARGET_EFAULT;
+ }
+ } else {
+ *host_rt_dev_ptr = 0;
+ }
+ field_types++;
+ continue;
+ }
+ field_types = thunk_convert(buf_temp + dst_offsets[i],
+ argptr + src_offsets[i],
+ field_types, THUNK_HOST);
+ }
+ unlock_user(argptr, arg, 0);
+
+ ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
+ if (*host_rt_dev_ptr != 0) {
+ unlock_user((void *)*host_rt_dev_ptr,
+ *target_rt_dev_ptr, 0);
+ }
+ return ret;
+}
+
+static abi_long do_ioctl_kdsigaccept(const IOCTLEntry *ie, uint8_t *buf_temp,
+ int fd, int cmd, abi_long arg)
+{
+ int sig = target_to_host_signal(arg);
+ return get_errno(ioctl(fd, ie->host_cmd, sig));
+}
+
+static IOCTLEntry ioctl_entries[] = {
+#define IOCTL(cmd, access, ...) \
+ { TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } },
+#define IOCTL_SPECIAL(cmd, access, dofn, ...) \
+ { TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } },
+#include "ioctls.h"
+ { 0, 0, },
+};
+
+/* ??? Implement proper locking for ioctls. */
+/* do_ioctl() Must return target values and target errnos. */
+static abi_long do_ioctl(int fd, int cmd, abi_long arg)
+{
+ const IOCTLEntry *ie;
+ const argtype *arg_type;
+ abi_long ret;
+ uint8_t buf_temp[MAX_STRUCT_SIZE];
+ int target_size;
+ void *argptr;
+
+ ie = ioctl_entries;
+ for(;;) {
+ if (ie->target_cmd == 0) {
+ gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
+ return -TARGET_ENOSYS;
+ }
+ if (ie->target_cmd == cmd)
+ break;
+ ie++;
+ }
+ arg_type = ie->arg_type;
+#if defined(DEBUG)
+ gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name);
+#endif
+ if (ie->do_ioctl) {
+ return ie->do_ioctl(ie, buf_temp, fd, cmd, arg);
+ }
+
+ switch(arg_type[0]) {
+ case TYPE_NULL:
+ /* no argument */
+ ret = get_errno(ioctl(fd, ie->host_cmd));
+ break;
+ case TYPE_PTRVOID:
+ case TYPE_INT:
+ /* int argment */
+ ret = get_errno(ioctl(fd, ie->host_cmd, arg));
+ break;
+ case TYPE_PTR:
+ arg_type++;
+ target_size = thunk_type_size(arg_type, 0);
+ switch(ie->access) {
+ case IOC_R:
+ ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
+ if (!is_error(ret)) {
+ argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
+ if (!argptr)
+ return -TARGET_EFAULT;
+ thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
+ unlock_user(argptr, arg, target_size);
+ }
+ break;
+ case IOC_W:
+ argptr = lock_user(VERIFY_READ, arg, target_size, 1);
+ if (!argptr)
+ return -TARGET_EFAULT;
+ thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
+ unlock_user(argptr, arg, 0);
+ ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
+ break;
+ default:
+ case IOC_RW:
+ argptr = lock_user(VERIFY_READ, arg, target_size, 1);
+ if (!argptr)
+ return -TARGET_EFAULT;
+ thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
+ unlock_user(argptr, arg, 0);
+ ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
+ if (!is_error(ret)) {
+ argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
+ if (!argptr)
+ return -TARGET_EFAULT;
+ thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
+ unlock_user(argptr, arg, target_size);
+ }
+ break;
+ }
+ break;
+ default:
+ gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
+ (long)cmd, arg_type[0]);
+ ret = -TARGET_ENOSYS;
+ break;
+ }
+ return ret;
+}
+
+static const bitmask_transtbl iflag_tbl[] = {
+ { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
+ { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
+ { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
+ { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
+ { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
+ { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
+ { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
+ { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
+ { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
+ { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
+ { TARGET_IXON, TARGET_IXON, IXON, IXON },
+ { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
+ { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
+ { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
+ { 0, 0, 0, 0 }
+};
+
+static const bitmask_transtbl oflag_tbl[] = {
+ { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
+ { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
+ { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
+ { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
+ { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
+ { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
+ { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
+ { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
+ { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
+ { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
+ { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
+ { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
+ { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
+ { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
+ { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
+ { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
+ { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
+ { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
+ { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
+ { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
+ { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
+ { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
+ { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
+ { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
+ { 0, 0, 0, 0 }
+};
+
+static const bitmask_transtbl cflag_tbl[] = {
+ { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
+ { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
+ { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
+ { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
+ { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
+ { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
+ { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
+ { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
+ { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
+ { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
+ { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
+ { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
+ { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
+ { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
+ { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
+ { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
+ { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
+ { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
+ { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
+ { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
+ { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
+ { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
+ { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
+ { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
+ { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
+ { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
+ { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
+ { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
+ { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
+ { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
+ { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
+ { 0, 0, 0, 0 }
+};
+
+static const bitmask_transtbl lflag_tbl[] = {
+ { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
+ { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
+ { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
+ { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
+ { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
+ { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
+ { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
+ { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
+ { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
+ { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
+ { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
+ { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
+ { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
+ { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
+ { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
+ { 0, 0, 0, 0 }
+};
+
+static void target_to_host_termios (void *dst, const void *src)
+{
+ struct host_termios *host = dst;
+ const struct target_termios *target = src;
+
+ host->c_iflag =
+ target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
+ host->c_oflag =
+ target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
+ host->c_cflag =
+ target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
+ host->c_lflag =
+ target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
+ host->c_line = target->c_line;
+
+ memset(host->c_cc, 0, sizeof(host->c_cc));
+ host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
+ host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
+ host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
+ host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
+ host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
+ host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
+ host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
+ host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
+ host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
+ host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
+ host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
+ host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
+ host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
+ host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
+ host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
+ host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
+ host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
+}
+
+static void host_to_target_termios (void *dst, const void *src)
+{
+ struct target_termios *target = dst;
+ const struct host_termios *host = src;
+
+ target->c_iflag =
+ tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
+ target->c_oflag =
+ tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
+ target->c_cflag =
+ tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
+ target->c_lflag =
+ tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
+ target->c_line = host->c_line;
+
+ memset(target->c_cc, 0, sizeof(target->c_cc));
+ target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
+ target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
+ target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
+ target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
+ target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
+ target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
+ target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
+ target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
+ target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
+ target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
+ target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
+ target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
+ target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
+ target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
+ target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
+ target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
+ target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
+}
+
+static const StructEntry struct_termios_def = {
+ .convert = { host_to_target_termios, target_to_host_termios },
+ .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
+ .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
+};
+
+static bitmask_transtbl mmap_flags_tbl[] = {
+ { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
+ { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
+ { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
+ { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
+ { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
+ { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
+ { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
+ { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
+ { TARGET_MAP_NORESERVE, TARGET_MAP_NORESERVE, MAP_NORESERVE,
+ MAP_NORESERVE },
+ { 0, 0, 0, 0 }
+};
+
+#if defined(TARGET_I386)
+
+/* NOTE: there is really one LDT for all the threads */
+static uint8_t *ldt_table;
+
+static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
+{
+ int size;
+ void *p;
+
+ if (!ldt_table)
+ return 0;
+ size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
+ if (size > bytecount)
+ size = bytecount;
+ p = lock_user(VERIFY_WRITE, ptr, size, 0);
+ if (!p)
+ return -TARGET_EFAULT;
+ /* ??? Should this by byteswapped? */
+ memcpy(p, ldt_table, size);
+ unlock_user(p, ptr, size);
+ return size;
+}
+
+/* XXX: add locking support */
+static abi_long write_ldt(CPUX86State *env,
+ abi_ulong ptr, unsigned long bytecount, int oldmode)
+{
+ struct target_modify_ldt_ldt_s ldt_info;
+ struct target_modify_ldt_ldt_s *target_ldt_info;
+ int seg_32bit, contents, read_exec_only, limit_in_pages;
+ int seg_not_present, useable, lm;
+ uint32_t *lp, entry_1, entry_2;
+
+ if (bytecount != sizeof(ldt_info))
+ return -TARGET_EINVAL;
+ if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
+ return -TARGET_EFAULT;
+ ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
+ ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
+ ldt_info.limit = tswap32(target_ldt_info->limit);
+ ldt_info.flags = tswap32(target_ldt_info->flags);
+ unlock_user_struct(target_ldt_info, ptr, 0);
+
+ if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
+ return -TARGET_EINVAL;
+ seg_32bit = ldt_info.flags & 1;
+ contents = (ldt_info.flags >> 1) & 3;
+ read_exec_only = (ldt_info.flags >> 3) & 1;
+ limit_in_pages = (ldt_info.flags >> 4) & 1;
+ seg_not_present = (ldt_info.flags >> 5) & 1;
+ useable = (ldt_info.flags >> 6) & 1;
+#ifdef TARGET_ABI32
+ lm = 0;
+#else
+ lm = (ldt_info.flags >> 7) & 1;
+#endif
+ if (contents == 3) {
+ if (oldmode)
+ return -TARGET_EINVAL;
+ if (seg_not_present == 0)
+ return -TARGET_EINVAL;
+ }
+ /* allocate the LDT */
+ if (!ldt_table) {
+ env->ldt.base = target_mmap(0,
+ TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
+ PROT_READ|PROT_WRITE,
+ MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
+ if (env->ldt.base == -1)
+ return -TARGET_ENOMEM;
+ memset(g2h(env->ldt.base), 0,
+ TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
+ env->ldt.limit = 0xffff;
+ ldt_table = g2h(env->ldt.base);
+ }
+
+ /* NOTE: same code as Linux kernel */
+ /* Allow LDTs to be cleared by the user. */
+ if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
+ if (oldmode ||
+ (contents == 0 &&
+ read_exec_only == 1 &&
+ seg_32bit == 0 &&
+ limit_in_pages == 0 &&
+ seg_not_present == 1 &&
+ useable == 0 )) {
+ entry_1 = 0;
+ entry_2 = 0;
+ goto install;
+ }
+ }
+
+ entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
+ (ldt_info.limit & 0x0ffff);
+ entry_2 = (ldt_info.base_addr & 0xff000000) |
+ ((ldt_info.base_addr & 0x00ff0000) >> 16) |
+ (ldt_info.limit & 0xf0000) |
+ ((read_exec_only ^ 1) << 9) |
+ (contents << 10) |
+ ((seg_not_present ^ 1) << 15) |
+ (seg_32bit << 22) |
+ (limit_in_pages << 23) |
+ (lm << 21) |
+ 0x7000;
+ if (!oldmode)
+ entry_2 |= (useable << 20);
+
+ /* Install the new entry ... */
+install:
+ lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
+ lp[0] = tswap32(entry_1);
+ lp[1] = tswap32(entry_2);
+ return 0;
+}
+
+/* specific and weird i386 syscalls */
+static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
+ unsigned long bytecount)
+{
+ abi_long ret;
+
+ switch (func) {
+ case 0:
+ ret = read_ldt(ptr, bytecount);
+ break;
+ case 1:
+ ret = write_ldt(env, ptr, bytecount, 1);
+ break;
+ case 0x11:
+ ret = write_ldt(env, ptr, bytecount, 0);
+ break;
+ default:
+ ret = -TARGET_ENOSYS;
+ break;
+ }
+ return ret;
+}
+
+#if defined(TARGET_I386) && defined(TARGET_ABI32)
+abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
+{
+ uint64_t *gdt_table = g2h(env->gdt.base);
+ struct target_modify_ldt_ldt_s ldt_info;
+ struct target_modify_ldt_ldt_s *target_ldt_info;
+ int seg_32bit, contents, read_exec_only, limit_in_pages;
+ int seg_not_present, useable, lm;
+ uint32_t *lp, entry_1, entry_2;
+ int i;
+
+ lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
+ if (!target_ldt_info)
+ return -TARGET_EFAULT;
+ ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
+ ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
+ ldt_info.limit = tswap32(target_ldt_info->limit);
+ ldt_info.flags = tswap32(target_ldt_info->flags);
+ if (ldt_info.entry_number == -1) {
+ for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
+ if (gdt_table[i] == 0) {
+ ldt_info.entry_number = i;
+ target_ldt_info->entry_number = tswap32(i);
+ break;
+ }
+ }
+ }
+ unlock_user_struct(target_ldt_info, ptr, 1);
+
+ if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
+ ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
+ return -TARGET_EINVAL;
+ seg_32bit = ldt_info.flags & 1;
+ contents = (ldt_info.flags >> 1) & 3;
+ read_exec_only = (ldt_info.flags >> 3) & 1;
+ limit_in_pages = (ldt_info.flags >> 4) & 1;
+ seg_not_present = (ldt_info.flags >> 5) & 1;
+ useable = (ldt_info.flags >> 6) & 1;
+#ifdef TARGET_ABI32
+ lm = 0;
+#else
+ lm = (ldt_info.flags >> 7) & 1;
+#endif
+
+ if (contents == 3) {
+ if (seg_not_present == 0)
+ return -TARGET_EINVAL;
+ }
+
+ /* NOTE: same code as Linux kernel */
+ /* Allow LDTs to be cleared by the user. */
+ if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
+ if ((contents == 0 &&
+ read_exec_only == 1 &&
+ seg_32bit == 0 &&
+ limit_in_pages == 0 &&
+ seg_not_present == 1 &&
+ useable == 0 )) {
+ entry_1 = 0;
+ entry_2 = 0;
+ goto install;
+ }
+ }
+
+ entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
+ (ldt_info.limit & 0x0ffff);
+ entry_2 = (ldt_info.base_addr & 0xff000000) |
+ ((ldt_info.base_addr & 0x00ff0000) >> 16) |
+ (ldt_info.limit & 0xf0000) |
+ ((read_exec_only ^ 1) << 9) |
+ (contents << 10) |
+ ((seg_not_present ^ 1) << 15) |
+ (seg_32bit << 22) |
+ (limit_in_pages << 23) |
+ (useable << 20) |
+ (lm << 21) |
+ 0x7000;
+
+ /* Install the new entry ... */
+install:
+ lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
+ lp[0] = tswap32(entry_1);
+ lp[1] = tswap32(entry_2);
+ return 0;
+}
+
+static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
+{
+ struct target_modify_ldt_ldt_s *target_ldt_info;
+ uint64_t *gdt_table = g2h(env->gdt.base);
+ uint32_t base_addr, limit, flags;
+ int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
+ int seg_not_present, useable, lm;
+ uint32_t *lp, entry_1, entry_2;
+
+ lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
+ if (!target_ldt_info)
+ return -TARGET_EFAULT;
+ idx = tswap32(target_ldt_info->entry_number);
+ if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
+ idx > TARGET_GDT_ENTRY_TLS_MAX) {
+ unlock_user_struct(target_ldt_info, ptr, 1);
+ return -TARGET_EINVAL;
+ }
+ lp = (uint32_t *)(gdt_table + idx);
+ entry_1 = tswap32(lp[0]);
+ entry_2 = tswap32(lp[1]);
+
+ read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
+ contents = (entry_2 >> 10) & 3;
+ seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
+ seg_32bit = (entry_2 >> 22) & 1;
+ limit_in_pages = (entry_2 >> 23) & 1;
+ useable = (entry_2 >> 20) & 1;
+#ifdef TARGET_ABI32
+ lm = 0;
+#else
+ lm = (entry_2 >> 21) & 1;
+#endif
+ flags = (seg_32bit << 0) | (contents << 1) |
+ (read_exec_only << 3) | (limit_in_pages << 4) |
+ (seg_not_present << 5) | (useable << 6) | (lm << 7);
+ limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
+ base_addr = (entry_1 >> 16) |
+ (entry_2 & 0xff000000) |
+ ((entry_2 & 0xff) << 16);
+ target_ldt_info->base_addr = tswapal(base_addr);
+ target_ldt_info->limit = tswap32(limit);
+ target_ldt_info->flags = tswap32(flags);
+ unlock_user_struct(target_ldt_info, ptr, 1);
+ return 0;
+}
+#endif /* TARGET_I386 && TARGET_ABI32 */
+
+#ifndef TARGET_ABI32
+abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
+{
+ abi_long ret = 0;
+ abi_ulong val;
+ int idx;
+
+ switch(code) {
+ case TARGET_ARCH_SET_GS:
+ case TARGET_ARCH_SET_FS:
+ if (code == TARGET_ARCH_SET_GS)
+ idx = R_GS;
+ else
+ idx = R_FS;
+ cpu_x86_load_seg(env, idx, 0);
+ env->segs[idx].base = addr;
+ break;
+ case TARGET_ARCH_GET_GS:
+ case TARGET_ARCH_GET_FS:
+ if (code == TARGET_ARCH_GET_GS)
+ idx = R_GS;
+ else
+ idx = R_FS;
+ val = env->segs[idx].base;
+ if (put_user(val, addr, abi_ulong))
+ ret = -TARGET_EFAULT;
+ break;
+ default:
+ ret = -TARGET_EINVAL;
+ break;
+ }
+ return ret;
+}
+#endif
+
+#endif /* defined(TARGET_I386) */
+
+#define NEW_STACK_SIZE 0x40000
+
+
+static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
+typedef struct {
+ CPUArchState *env;
+ pthread_mutex_t mutex;
+ pthread_cond_t cond;
+ pthread_t thread;
+ uint32_t tid;
+ abi_ulong child_tidptr;
+ abi_ulong parent_tidptr;
+ sigset_t sigmask;
+} new_thread_info;
+
+static void *clone_func(void *arg)
+{
+ new_thread_info *info = arg;
+ CPUArchState *env;
+ CPUState *cpu;
+ TaskState *ts;
+
+ env = info->env;
+ cpu = ENV_GET_CPU(env);
+ thread_cpu = cpu;
+ ts = (TaskState *)cpu->opaque;
+ info->tid = gettid();
+ cpu->host_tid = info->tid;
+ task_settid(ts);
+ if (info->child_tidptr)
+ put_user_u32(info->tid, info->child_tidptr);
+ if (info->parent_tidptr)
+ put_user_u32(info->tid, info->parent_tidptr);
+ /* Enable signals. */
+ sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
+ /* Signal to the parent that we're ready. */
+ pthread_mutex_lock(&info->mutex);
+ pthread_cond_broadcast(&info->cond);
+ pthread_mutex_unlock(&info->mutex);
+ /* Wait until the parent has finshed initializing the tls state. */
+ pthread_mutex_lock(&clone_lock);
+ pthread_mutex_unlock(&clone_lock);
+ cpu_loop(env);
+ /* never exits */
+ return NULL;
+}
+
+/* do_fork() Must return host values and target errnos (unlike most
+ do_*() functions). */
+static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
+ abi_ulong parent_tidptr, target_ulong newtls,
+ abi_ulong child_tidptr)
+{
+ CPUState *cpu = ENV_GET_CPU(env);
+ int ret;
+ TaskState *ts;
+ CPUState *new_cpu;
+ CPUArchState *new_env;
+ unsigned int nptl_flags;
+ sigset_t sigmask;
+
+ /* Emulate vfork() with fork() */
+ if (flags & CLONE_VFORK)
+ flags &= ~(CLONE_VFORK | CLONE_VM);
+
+ if (flags & CLONE_VM) {
+ TaskState *parent_ts = (TaskState *)cpu->opaque;
+ new_thread_info info;
+ pthread_attr_t attr;
+
+ ts = g_malloc0(sizeof(TaskState));
+ init_task_state(ts);
+ /* we create a new CPU instance. */
+ new_env = cpu_copy(env);
+ /* Init regs that differ from the parent. */
+ cpu_clone_regs(new_env, newsp);
+ new_cpu = ENV_GET_CPU(new_env);
+ new_cpu->opaque = ts;
+ ts->bprm = parent_ts->bprm;
+ ts->info = parent_ts->info;
+ nptl_flags = flags;
+ flags &= ~CLONE_NPTL_FLAGS2;
+
+ if (nptl_flags & CLONE_CHILD_CLEARTID) {
+ ts->child_tidptr = child_tidptr;
+ }
+
+ if (nptl_flags & CLONE_SETTLS)
+ cpu_set_tls (new_env, newtls);
+
+ /* Grab a mutex so that thread setup appears atomic. */
+ pthread_mutex_lock(&clone_lock);
+
+ memset(&info, 0, sizeof(info));
+ pthread_mutex_init(&info.mutex, NULL);
+ pthread_mutex_lock(&info.mutex);
+ pthread_cond_init(&info.cond, NULL);
+ info.env = new_env;
+ if (nptl_flags & CLONE_CHILD_SETTID)
+ info.child_tidptr = child_tidptr;
+ if (nptl_flags & CLONE_PARENT_SETTID)
+ info.parent_tidptr = parent_tidptr;
+
+ ret = pthread_attr_init(&attr);
+ ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE);
+ ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+ /* It is not safe to deliver signals until the child has finished
+ initializing, so temporarily block all signals. */
+ sigfillset(&sigmask);
+ sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask);
+
+ ret = pthread_create(&info.thread, &attr, clone_func, &info);
+ /* TODO: Free new CPU state if thread creation failed. */
+
+ sigprocmask(SIG_SETMASK, &info.sigmask, NULL);
+ pthread_attr_destroy(&attr);
+ if (ret == 0) {
+ /* Wait for the child to initialize. */
+ pthread_cond_wait(&info.cond, &info.mutex);
+ ret = info.tid;
+ if (flags & CLONE_PARENT_SETTID)
+ put_user_u32(ret, parent_tidptr);
+ } else {
+ ret = -1;
+ }
+ pthread_mutex_unlock(&info.mutex);
+ pthread_cond_destroy(&info.cond);
+ pthread_mutex_destroy(&info.mutex);
+ pthread_mutex_unlock(&clone_lock);
+ } else {
+ /* if no CLONE_VM, we consider it is a fork */
+ if ((flags & ~(CSIGNAL | CLONE_NPTL_FLAGS2)) != 0)
+ return -EINVAL;
+ fork_start();
+ ret = fork();
+ if (ret == 0) {
+ /* Child Process. */
+ rcu_after_fork();
+ cpu_clone_regs(env, newsp);
+ fork_end(1);
+ /* There is a race condition here. The parent process could
+ theoretically read the TID in the child process before the child
+ tid is set. This would require using either ptrace
+ (not implemented) or having *_tidptr to point at a shared memory
+ mapping. We can't repeat the spinlock hack used above because
+ the child process gets its own copy of the lock. */
+ if (flags & CLONE_CHILD_SETTID)
+ put_user_u32(gettid(), child_tidptr);
+ if (flags & CLONE_PARENT_SETTID)
+ put_user_u32(gettid(), parent_tidptr);
+ ts = (TaskState *)cpu->opaque;
+ if (flags & CLONE_SETTLS)
+ cpu_set_tls (env, newtls);
+ if (flags & CLONE_CHILD_CLEARTID)
+ ts->child_tidptr = child_tidptr;
+ } else {
+ fork_end(0);
+ }
+ }
+ return ret;
+}
+
+/* warning : doesn't handle linux specific flags... */
+static int target_to_host_fcntl_cmd(int cmd)
+{
+ switch(cmd) {
+ case TARGET_F_DUPFD:
+ case TARGET_F_GETFD:
+ case TARGET_F_SETFD:
+ case TARGET_F_GETFL:
+ case TARGET_F_SETFL:
+ return cmd;
+ case TARGET_F_GETLK:
+ return F_GETLK;
+ case TARGET_F_SETLK:
+ return F_SETLK;
+ case TARGET_F_SETLKW:
+ return F_SETLKW;
+ case TARGET_F_GETOWN:
+ return F_GETOWN;
+ case TARGET_F_SETOWN:
+ return F_SETOWN;
+ case TARGET_F_GETSIG:
+ return F_GETSIG;
+ case TARGET_F_SETSIG:
+ return F_SETSIG;
+#if TARGET_ABI_BITS == 32
+ case TARGET_F_GETLK64:
+ return F_GETLK64;
+ case TARGET_F_SETLK64:
+ return F_SETLK64;
+ case TARGET_F_SETLKW64:
+ return F_SETLKW64;
+#endif
+ case TARGET_F_SETLEASE:
+ return F_SETLEASE;
+ case TARGET_F_GETLEASE:
+ return F_GETLEASE;
+#ifdef F_DUPFD_CLOEXEC
+ case TARGET_F_DUPFD_CLOEXEC:
+ return F_DUPFD_CLOEXEC;
+#endif
+ case TARGET_F_NOTIFY:
+ return F_NOTIFY;
+#ifdef F_GETOWN_EX
+ case TARGET_F_GETOWN_EX:
+ return F_GETOWN_EX;
+#endif
+#ifdef F_SETOWN_EX
+ case TARGET_F_SETOWN_EX:
+ return F_SETOWN_EX;
+#endif
+ default:
+ return -TARGET_EINVAL;
+ }
+ return -TARGET_EINVAL;
+}
+
+#define TRANSTBL_CONVERT(a) { -1, TARGET_##a, -1, a }
+static const bitmask_transtbl flock_tbl[] = {
+ TRANSTBL_CONVERT(F_RDLCK),
+ TRANSTBL_CONVERT(F_WRLCK),
+ TRANSTBL_CONVERT(F_UNLCK),
+ TRANSTBL_CONVERT(F_EXLCK),
+ TRANSTBL_CONVERT(F_SHLCK),
+ { 0, 0, 0, 0 }
+};
+
+static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
+{
+ struct flock fl;
+ struct target_flock *target_fl;
+ struct flock64 fl64;
+ struct target_flock64 *target_fl64;
+#ifdef F_GETOWN_EX
+ struct f_owner_ex fox;
+ struct target_f_owner_ex *target_fox;
+#endif
+ abi_long ret;
+ int host_cmd = target_to_host_fcntl_cmd(cmd);
+
+ if (host_cmd == -TARGET_EINVAL)
+ return host_cmd;
+
+ switch(cmd) {
+ case TARGET_F_GETLK:
+ if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
+ return -TARGET_EFAULT;
+ fl.l_type =
+ target_to_host_bitmask(tswap16(target_fl->l_type), flock_tbl);
+ fl.l_whence = tswap16(target_fl->l_whence);
+ fl.l_start = tswapal(target_fl->l_start);
+ fl.l_len = tswapal(target_fl->l_len);
+ fl.l_pid = tswap32(target_fl->l_pid);
+ unlock_user_struct(target_fl, arg, 0);
+ ret = get_errno(fcntl(fd, host_cmd, &fl));
+ if (ret == 0) {
+ if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0))
+ return -TARGET_EFAULT;
+ target_fl->l_type =
+ host_to_target_bitmask(tswap16(fl.l_type), flock_tbl);
+ target_fl->l_whence = tswap16(fl.l_whence);
+ target_fl->l_start = tswapal(fl.l_start);
+ target_fl->l_len = tswapal(fl.l_len);
+ target_fl->l_pid = tswap32(fl.l_pid);
+ unlock_user_struct(target_fl, arg, 1);
+ }
+ break;
+
+ case TARGET_F_SETLK:
+ case TARGET_F_SETLKW:
+ if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
+ return -TARGET_EFAULT;
+ fl.l_type =
+ target_to_host_bitmask(tswap16(target_fl->l_type), flock_tbl);
+ fl.l_whence = tswap16(target_fl->l_whence);
+ fl.l_start = tswapal(target_fl->l_start);
+ fl.l_len = tswapal(target_fl->l_len);
+ fl.l_pid = tswap32(target_fl->l_pid);
+ unlock_user_struct(target_fl, arg, 0);
+ ret = get_errno(fcntl(fd, host_cmd, &fl));
+ break;
+
+ case TARGET_F_GETLK64:
+ if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
+ return -TARGET_EFAULT;
+ fl64.l_type =
+ target_to_host_bitmask(tswap16(target_fl64->l_type), flock_tbl) >> 1;
+ fl64.l_whence = tswap16(target_fl64->l_whence);
+ fl64.l_start = tswap64(target_fl64->l_start);
+ fl64.l_len = tswap64(target_fl64->l_len);
+ fl64.l_pid = tswap32(target_fl64->l_pid);
+ unlock_user_struct(target_fl64, arg, 0);
+ ret = get_errno(fcntl(fd, host_cmd, &fl64));
+ if (ret == 0) {
+ if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0))
+ return -TARGET_EFAULT;
+ target_fl64->l_type =
+ host_to_target_bitmask(tswap16(fl64.l_type), flock_tbl) >> 1;
+ target_fl64->l_whence = tswap16(fl64.l_whence);
+ target_fl64->l_start = tswap64(fl64.l_start);
+ target_fl64->l_len = tswap64(fl64.l_len);
+ target_fl64->l_pid = tswap32(fl64.l_pid);
+ unlock_user_struct(target_fl64, arg, 1);
+ }
+ break;
+ case TARGET_F_SETLK64:
+ case TARGET_F_SETLKW64:
+ if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
+ return -TARGET_EFAULT;
+ fl64.l_type =
+ target_to_host_bitmask(tswap16(target_fl64->l_type), flock_tbl) >> 1;
+ fl64.l_whence = tswap16(target_fl64->l_whence);
+ fl64.l_start = tswap64(target_fl64->l_start);
+ fl64.l_len = tswap64(target_fl64->l_len);
+ fl64.l_pid = tswap32(target_fl64->l_pid);
+ unlock_user_struct(target_fl64, arg, 0);
+ ret = get_errno(fcntl(fd, host_cmd, &fl64));
+ break;
+
+ case TARGET_F_GETFL:
+ ret = get_errno(fcntl(fd, host_cmd, arg));
+ if (ret >= 0) {
+ ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
+ }
+ break;
+
+ case TARGET_F_SETFL:
+ ret = get_errno(fcntl(fd, host_cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)));
+ break;
+
+#ifdef F_GETOWN_EX
+ case TARGET_F_GETOWN_EX:
+ ret = get_errno(fcntl(fd, host_cmd, &fox));
+ if (ret >= 0) {
+ if (!lock_user_struct(VERIFY_WRITE, target_fox, arg, 0))
+ return -TARGET_EFAULT;
+ target_fox->type = tswap32(fox.type);
+ target_fox->pid = tswap32(fox.pid);
+ unlock_user_struct(target_fox, arg, 1);
+ }
+ break;
+#endif
+
+#ifdef F_SETOWN_EX
+ case TARGET_F_SETOWN_EX:
+ if (!lock_user_struct(VERIFY_READ, target_fox, arg, 1))
+ return -TARGET_EFAULT;
+ fox.type = tswap32(target_fox->type);
+ fox.pid = tswap32(target_fox->pid);
+ unlock_user_struct(target_fox, arg, 0);
+ ret = get_errno(fcntl(fd, host_cmd, &fox));
+ break;
+#endif
+
+ case TARGET_F_SETOWN:
+ case TARGET_F_GETOWN:
+ case TARGET_F_SETSIG:
+ case TARGET_F_GETSIG:
+ case TARGET_F_SETLEASE:
+ case TARGET_F_GETLEASE:
+ ret = get_errno(fcntl(fd, host_cmd, arg));
+ break;
+
+ default:
+ ret = get_errno(fcntl(fd, cmd, arg));
+ break;
+ }
+ return ret;
+}
+
+#ifdef USE_UID16
+
+static inline int high2lowuid(int uid)
+{
+ if (uid > 65535)
+ return 65534;
+ else
+ return uid;
+}
+
+static inline int high2lowgid(int gid)
+{
+ if (gid > 65535)
+ return 65534;
+ else
+ return gid;
+}
+
+static inline int low2highuid(int uid)
+{
+ if ((int16_t)uid == -1)
+ return -1;
+ else
+ return uid;
+}
+
+static inline int low2highgid(int gid)
+{
+ if ((int16_t)gid == -1)
+ return -1;
+ else
+ return gid;
+}
+static inline int tswapid(int id)
+{
+ return tswap16(id);
+}
+
+#define put_user_id(x, gaddr) put_user_u16(x, gaddr)
+
+#else /* !USE_UID16 */
+static inline int high2lowuid(int uid)
+{
+ return uid;
+}
+static inline int high2lowgid(int gid)
+{
+ return gid;
+}
+static inline int low2highuid(int uid)
+{
+ return uid;
+}
+static inline int low2highgid(int gid)
+{
+ return gid;
+}
+static inline int tswapid(int id)
+{
+ return tswap32(id);
+}
+
+#define put_user_id(x, gaddr) put_user_u32(x, gaddr)
+
+#endif /* USE_UID16 */
+
+void syscall_init(void)
+{
+ IOCTLEntry *ie;
+ const argtype *arg_type;
+ int size;
+ int i;
+
+ thunk_init(STRUCT_MAX);
+
+#define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
+#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
+#include "syscall_types.h"
+#undef STRUCT
+#undef STRUCT_SPECIAL
+
+ /* Build target_to_host_errno_table[] table from
+ * host_to_target_errno_table[]. */
+ for (i = 0; i < ERRNO_TABLE_SIZE; i++) {
+ target_to_host_errno_table[host_to_target_errno_table[i]] = i;
+ }
+
+ /* we patch the ioctl size if necessary. We rely on the fact that
+ no ioctl has all the bits at '1' in the size field */
+ ie = ioctl_entries;
+ while (ie->target_cmd != 0) {
+ if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
+ TARGET_IOC_SIZEMASK) {
+ arg_type = ie->arg_type;
+ if (arg_type[0] != TYPE_PTR) {
+ fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
+ ie->target_cmd);
+ exit(1);
+ }
+ arg_type++;
+ size = thunk_type_size(arg_type, 0);
+ ie->target_cmd = (ie->target_cmd &
+ ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
+ (size << TARGET_IOC_SIZESHIFT);
+ }
+
+ /* automatic consistency check if same arch */
+#if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
+ (defined(__x86_64__) && defined(TARGET_X86_64))
+ if (unlikely(ie->target_cmd != ie->host_cmd)) {
+ fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
+ ie->name, ie->target_cmd, ie->host_cmd);
+ }
+#endif
+ ie++;
+ }
+}
+
+#if TARGET_ABI_BITS == 32
+static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
+{
+#ifdef TARGET_WORDS_BIGENDIAN
+ return ((uint64_t)word0 << 32) | word1;
+#else
+ return ((uint64_t)word1 << 32) | word0;
+#endif
+}
+#else /* TARGET_ABI_BITS == 32 */
+static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
+{
+ return word0;
+}
+#endif /* TARGET_ABI_BITS != 32 */
+
+#ifdef TARGET_NR_truncate64
+static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
+ abi_long arg2,
+ abi_long arg3,
+ abi_long arg4)
+{
+ if (regpairs_aligned(cpu_env)) {
+ arg2 = arg3;
+ arg3 = arg4;
+ }
+ return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
+}
+#endif
+
+#ifdef TARGET_NR_ftruncate64
+static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
+ abi_long arg2,
+ abi_long arg3,
+ abi_long arg4)
+{
+ if (regpairs_aligned(cpu_env)) {
+ arg2 = arg3;
+ arg3 = arg4;
+ }
+ return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
+}
+#endif
+
+static inline abi_long target_to_host_timespec(struct timespec *host_ts,
+ abi_ulong target_addr)
+{
+ struct target_timespec *target_ts;
+
+ if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1))
+ return -TARGET_EFAULT;
+ host_ts->tv_sec = tswapal(target_ts->tv_sec);
+ host_ts->tv_nsec = tswapal(target_ts->tv_nsec);
+ unlock_user_struct(target_ts, target_addr, 0);
+ return 0;
+}
+
+static inline abi_long host_to_target_timespec(abi_ulong target_addr,
+ struct timespec *host_ts)
+{
+ struct target_timespec *target_ts;
+
+ if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0))
+ return -TARGET_EFAULT;
+ target_ts->tv_sec = tswapal(host_ts->tv_sec);
+ target_ts->tv_nsec = tswapal(host_ts->tv_nsec);
+ unlock_user_struct(target_ts, target_addr, 1);
+ return 0;
+}
+
+static inline abi_long target_to_host_itimerspec(struct itimerspec *host_itspec,
+ abi_ulong target_addr)
+{
+ struct target_itimerspec *target_itspec;
+
+ if (!lock_user_struct(VERIFY_READ, target_itspec, target_addr, 1)) {
+ return -TARGET_EFAULT;
+ }
+
+ host_itspec->it_interval.tv_sec =
+ tswapal(target_itspec->it_interval.tv_sec);
+ host_itspec->it_interval.tv_nsec =
+ tswapal(target_itspec->it_interval.tv_nsec);
+ host_itspec->it_value.tv_sec = tswapal(target_itspec->it_value.tv_sec);
+ host_itspec->it_value.tv_nsec = tswapal(target_itspec->it_value.tv_nsec);
+
+ unlock_user_struct(target_itspec, target_addr, 1);
+ return 0;
+}
+
+static inline abi_long host_to_target_itimerspec(abi_ulong target_addr,
+ struct itimerspec *host_its)
+{
+ struct target_itimerspec *target_itspec;
+
+ if (!lock_user_struct(VERIFY_WRITE, target_itspec, target_addr, 0)) {
+ return -TARGET_EFAULT;
+ }
+
+ target_itspec->it_interval.tv_sec = tswapal(host_its->it_interval.tv_sec);
+ target_itspec->it_interval.tv_nsec = tswapal(host_its->it_interval.tv_nsec);
+
+ target_itspec->it_value.tv_sec = tswapal(host_its->it_value.tv_sec);
+ target_itspec->it_value.tv_nsec = tswapal(host_its->it_value.tv_nsec);
+
+ unlock_user_struct(target_itspec, target_addr, 0);
+ return 0;
+}
+
+static inline abi_long target_to_host_sigevent(struct sigevent *host_sevp,
+ abi_ulong target_addr)
+{
+ struct target_sigevent *target_sevp;
+
+ if (!lock_user_struct(VERIFY_READ, target_sevp, target_addr, 1)) {
+ return -TARGET_EFAULT;
+ }
+
+ /* This union is awkward on 64 bit systems because it has a 32 bit
+ * integer and a pointer in it; we follow the conversion approach
+ * used for handling sigval types in signal.c so the guest should get
+ * the correct value back even if we did a 64 bit byteswap and it's
+ * using the 32 bit integer.
+ */
+ host_sevp->sigev_value.sival_ptr =
+ (void *)(uintptr_t)tswapal(target_sevp->sigev_value.sival_ptr);
+ host_sevp->sigev_signo =
+ target_to_host_signal(tswap32(target_sevp->sigev_signo));
+ host_sevp->sigev_notify = tswap32(target_sevp->sigev_notify);
+ host_sevp->_sigev_un._tid = tswap32(target_sevp->_sigev_un._tid);
+
+ unlock_user_struct(target_sevp, target_addr, 1);
+ return 0;
+}
+
+#if defined(TARGET_NR_mlockall)
+static inline int target_to_host_mlockall_arg(int arg)
+{
+ int result = 0;
+
+ if (arg & TARGET_MLOCKALL_MCL_CURRENT) {
+ result |= MCL_CURRENT;
+ }
+ if (arg & TARGET_MLOCKALL_MCL_FUTURE) {
+ result |= MCL_FUTURE;
+ }
+ return result;
+}
+#endif
+
+#if defined(TARGET_NR_stat64) || defined(TARGET_NR_newfstatat)
+static inline abi_long host_to_target_stat64(void *cpu_env,
+ abi_ulong target_addr,
+ struct stat *host_st)
+{
+#if defined(TARGET_ARM) && defined(TARGET_ABI32)
+ if (((CPUARMState *)cpu_env)->eabi) {
+ struct target_eabi_stat64 *target_st;
+
+ if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
+ return -TARGET_EFAULT;
+ memset(target_st, 0, sizeof(struct target_eabi_stat64));
+ __put_user(host_st->st_dev, &target_st->st_dev);
+ __put_user(host_st->st_ino, &target_st->st_ino);
+#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
+ __put_user(host_st->st_ino, &target_st->__st_ino);
+#endif
+ __put_user(host_st->st_mode, &target_st->st_mode);
+ __put_user(host_st->st_nlink, &target_st->st_nlink);
+ __put_user(host_st->st_uid, &target_st->st_uid);
+ __put_user(host_st->st_gid, &target_st->st_gid);
+ __put_user(host_st->st_rdev, &target_st->st_rdev);
+ __put_user(host_st->st_size, &target_st->st_size);
+ __put_user(host_st->st_blksize, &target_st->st_blksize);
+ __put_user(host_st->st_blocks, &target_st->st_blocks);
+ __put_user(host_st->st_atime, &target_st->target_st_atime);
+ __put_user(host_st->st_mtime, &target_st->target_st_mtime);
+ __put_user(host_st->st_ctime, &target_st->target_st_ctime);
+ unlock_user_struct(target_st, target_addr, 1);
+ } else
+#endif
+ {
+#if defined(TARGET_HAS_STRUCT_STAT64)
+ struct target_stat64 *target_st;
+#else
+ struct target_stat *target_st;
+#endif
+
+ if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
+ return -TARGET_EFAULT;
+ memset(target_st, 0, sizeof(*target_st));
+ __put_user(host_st->st_dev, &target_st->st_dev);
+ __put_user(host_st->st_ino, &target_st->st_ino);
+#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
+ __put_user(host_st->st_ino, &target_st->__st_ino);
+#endif
+ __put_user(host_st->st_mode, &target_st->st_mode);
+ __put_user(host_st->st_nlink, &target_st->st_nlink);
+ __put_user(host_st->st_uid, &target_st->st_uid);
+ __put_user(host_st->st_gid, &target_st->st_gid);
+ __put_user(host_st->st_rdev, &target_st->st_rdev);
+ /* XXX: better use of kernel struct */
+ __put_user(host_st->st_size, &target_st->st_size);
+ __put_user(host_st->st_blksize, &target_st->st_blksize);
+ __put_user(host_st->st_blocks, &target_st->st_blocks);
+ __put_user(host_st->st_atime, &target_st->target_st_atime);
+ __put_user(host_st->st_mtime, &target_st->target_st_mtime);
+ __put_user(host_st->st_ctime, &target_st->target_st_ctime);
+ unlock_user_struct(target_st, target_addr, 1);
+ }
+
+ return 0;
+}
+#endif
+
+/* ??? Using host futex calls even when target atomic operations
+ are not really atomic probably breaks things. However implementing
+ futexes locally would make futexes shared between multiple processes
+ tricky. However they're probably useless because guest atomic
+ operations won't work either. */
+static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
+ target_ulong uaddr2, int val3)
+{
+ struct timespec ts, *pts;
+ int base_op;
+
+ /* ??? We assume FUTEX_* constants are the same on both host
+ and target. */
+#ifdef FUTEX_CMD_MASK
+ base_op = op & FUTEX_CMD_MASK;
+#else
+ base_op = op;
+#endif
+ switch (base_op) {
+ case FUTEX_WAIT:
+ case FUTEX_WAIT_BITSET:
+ if (timeout) {
+ pts = &ts;
+ target_to_host_timespec(pts, timeout);
+ } else {
+ pts = NULL;
+ }
+ return get_errno(sys_futex(g2h(uaddr), op, tswap32(val),
+ pts, NULL, val3));
+ case FUTEX_WAKE:
+ return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
+ case FUTEX_FD:
+ return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
+ case FUTEX_REQUEUE:
+ case FUTEX_CMP_REQUEUE:
+ case FUTEX_WAKE_OP:
+ /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the
+ TIMEOUT parameter is interpreted as a uint32_t by the kernel.
+ But the prototype takes a `struct timespec *'; insert casts
+ to satisfy the compiler. We do not need to tswap TIMEOUT
+ since it's not compared to guest memory. */
+ pts = (struct timespec *)(uintptr_t) timeout;
+ return get_errno(sys_futex(g2h(uaddr), op, val, pts,
+ g2h(uaddr2),
+ (base_op == FUTEX_CMP_REQUEUE
+ ? tswap32(val3)
+ : val3)));
+ default:
+ return -TARGET_ENOSYS;
+ }
+}
+
+/* Map host to target signal numbers for the wait family of syscalls.
+ Assume all other status bits are the same. */
+int host_to_target_waitstatus(int status)
+{
+ if (WIFSIGNALED(status)) {
+ return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
+ }
+ if (WIFSTOPPED(status)) {
+ return (host_to_target_signal(WSTOPSIG(status)) << 8)
+ | (status & 0xff);
+ }
+ return status;
+}
+
+static int open_self_cmdline(void *cpu_env, int fd)
+{
+ int fd_orig = -1;
+ bool word_skipped = false;
+
+ fd_orig = open("/proc/self/cmdline", O_RDONLY);
+ if (fd_orig < 0) {
+ return fd_orig;
+ }
+
+ while (true) {
+ ssize_t nb_read;
+ char buf[128];
+ char *cp_buf = buf;
+
+ nb_read = read(fd_orig, buf, sizeof(buf));
+ if (nb_read < 0) {
+ fd_orig = close(fd_orig);
+ return -1;
+ } else if (nb_read == 0) {
+ break;
+ }
+
+ if (!word_skipped) {
+ /* Skip the first string, which is the path to qemu-*-static
+ instead of the actual command. */
+ cp_buf = memchr(buf, 0, sizeof(buf));
+ if (cp_buf) {
+ /* Null byte found, skip one string */
+ cp_buf++;
+ nb_read -= cp_buf - buf;
+ word_skipped = true;
+ }
+ }
+
+ if (word_skipped) {
+ if (write(fd, cp_buf, nb_read) != nb_read) {
+ close(fd_orig);
+ return -1;
+ }
+ }
+ }
+
+ return close(fd_orig);
+}
+
+static int open_self_maps(void *cpu_env, int fd)
+{
+ CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
+ TaskState *ts = cpu->opaque;
+ FILE *fp;
+ char *line = NULL;
+ size_t len = 0;
+ ssize_t read;
+
+ fp = fopen("/proc/self/maps", "r");
+ if (fp == NULL) {
+ return -EACCES;
+ }
+
+ while ((read = getline(&line, &len, fp)) != -1) {
+ int fields, dev_maj, dev_min, inode;
+ uint64_t min, max, offset;
+ char flag_r, flag_w, flag_x, flag_p;
+ char path[512] = "";
+ fields = sscanf(line, "%"PRIx64"-%"PRIx64" %c%c%c%c %"PRIx64" %x:%x %d"
+ " %512s", &min, &max, &flag_r, &flag_w, &flag_x,
+ &flag_p, &offset, &dev_maj, &dev_min, &inode, path);
+
+ if ((fields < 10) || (fields > 11)) {
+ continue;
+ }
+ if (h2g_valid(min)) {
+ int flags = page_get_flags(h2g(min));
+ max = h2g_valid(max - 1) ? max : (uintptr_t)g2h(GUEST_ADDR_MAX);
+ if (page_check_range(h2g(min), max - min, flags) == -1) {
+ continue;
+ }
+ if (h2g(min) == ts->info->stack_limit) {
+ pstrcpy(path, sizeof(path), " [stack]");
+ }
+ dprintf(fd, TARGET_ABI_FMT_lx "-" TARGET_ABI_FMT_lx
+ " %c%c%c%c %08" PRIx64 " %02x:%02x %d %s%s\n",
+ h2g(min), h2g(max - 1) + 1, flag_r, flag_w,
+ flag_x, flag_p, offset, dev_maj, dev_min, inode,
+ path[0] ? " " : "", path);
+ }
+ }
+
+ free(line);
+ fclose(fp);
+
+ return 0;
+}
+
+static int open_self_stat(void *cpu_env, int fd)
+{
+ CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
+ TaskState *ts = cpu->opaque;
+ abi_ulong start_stack = ts->info->start_stack;
+ int i;
+
+ for (i = 0; i < 44; i++) {
+ char buf[128];
+ int len;
+ uint64_t val = 0;
+
+ if (i == 0) {
+ /* pid */
+ val = getpid();
+ snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
+ } else if (i == 1) {
+ /* app name */
+ snprintf(buf, sizeof(buf), "(%s) ", ts->bprm->argv[0]);
+ } else if (i == 27) {
+ /* stack bottom */
+ val = start_stack;
+ snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
+ } else {
+ /* for the rest, there is MasterCard */
+ snprintf(buf, sizeof(buf), "0%c", i == 43 ? '\n' : ' ');
+ }
+
+ len = strlen(buf);
+ if (write(fd, buf, len) != len) {
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+static int open_self_auxv(void *cpu_env, int fd)
+{
+ CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
+ TaskState *ts = cpu->opaque;
+ abi_ulong auxv = ts->info->saved_auxv;
+ abi_ulong len = ts->info->auxv_len;
+ char *ptr;
+
+ /*
+ * Auxiliary vector is stored in target process stack.
+ * read in whole auxv vector and copy it to file
+ */
+ ptr = lock_user(VERIFY_READ, auxv, len, 0);
+ if (ptr != NULL) {
+ while (len > 0) {
+ ssize_t r;
+ r = write(fd, ptr, len);
+ if (r <= 0) {
+ break;
+ }
+ len -= r;
+ ptr += r;
+ }
+ lseek(fd, 0, SEEK_SET);
+ unlock_user(ptr, auxv, len);
+ }
+
+ return 0;
+}
+
+static int is_proc_myself(const char *filename, const char *entry)
+{
+ if (!strncmp(filename, "/proc/", strlen("/proc/"))) {
+ filename += strlen("/proc/");
+ if (!strncmp(filename, "self/", strlen("self/"))) {
+ filename += strlen("self/");
+ } else if (*filename >= '1' && *filename <= '9') {
+ char myself[80];
+ snprintf(myself, sizeof(myself), "%d/", getpid());
+ if (!strncmp(filename, myself, strlen(myself))) {
+ filename += strlen(myself);
+ } else {
+ return 0;
+ }
+ } else {
+ return 0;
+ }
+ if (!strcmp(filename, entry)) {
+ return 1;
+ }
+ }
+ return 0;
+}
+
+#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
+static int is_proc(const char *filename, const char *entry)
+{
+ return strcmp(filename, entry) == 0;
+}
+
+static int open_net_route(void *cpu_env, int fd)
+{
+ FILE *fp;
+ char *line = NULL;
+ size_t len = 0;
+ ssize_t read;
+
+ fp = fopen("/proc/net/route", "r");
+ if (fp == NULL) {
+ return -EACCES;
+ }
+
+ /* read header */
+
+ read = getline(&line, &len, fp);
+ dprintf(fd, "%s", line);
+
+ /* read routes */
+
+ while ((read = getline(&line, &len, fp)) != -1) {
+ char iface[16];
+ uint32_t dest, gw, mask;
+ unsigned int flags, refcnt, use, metric, mtu, window, irtt;
+ sscanf(line, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
+ iface, &dest, &gw, &flags, &refcnt, &use, &metric,
+ &mask, &mtu, &window, &irtt);
+ dprintf(fd, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
+ iface, tswap32(dest), tswap32(gw), flags, refcnt, use,
+ metric, tswap32(mask), mtu, window, irtt);
+ }
+
+ free(line);
+ fclose(fp);
+
+ return 0;
+}
+#endif
+
+static int do_openat(void *cpu_env, int dirfd, const char *pathname, int flags, mode_t mode)
+{
+ struct fake_open {
+ const char *filename;
+ int (*fill)(void *cpu_env, int fd);
+ int (*cmp)(const char *s1, const char *s2);
+ };
+ const struct fake_open *fake_open;
+ static const struct fake_open fakes[] = {
+ { "maps", open_self_maps, is_proc_myself },
+ { "stat", open_self_stat, is_proc_myself },
+ { "auxv", open_self_auxv, is_proc_myself },
+ { "cmdline", open_self_cmdline, is_proc_myself },
+#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
+ { "/proc/net/route", open_net_route, is_proc },
+#endif
+ { NULL, NULL, NULL }
+ };
+
+ if (is_proc_myself(pathname, "exe")) {
+ int execfd = qemu_getauxval(AT_EXECFD);
+ return execfd ? execfd : get_errno(sys_openat(dirfd, exec_path, flags, mode));
+ }
+
+ for (fake_open = fakes; fake_open->filename; fake_open++) {
+ if (fake_open->cmp(pathname, fake_open->filename)) {
+ break;
+ }
+ }
+
+ if (fake_open->filename) {
+ const char *tmpdir;
+ char filename[PATH_MAX];
+ int fd, r;
+
+ /* create temporary file to map stat to */
+ tmpdir = getenv("TMPDIR");
+ if (!tmpdir)
+ tmpdir = "/tmp";
+ snprintf(filename, sizeof(filename), "%s/qemu-open.XXXXXX", tmpdir);
+ fd = mkstemp(filename);
+ if (fd < 0) {
+ return fd;
+ }
+ unlink(filename);
+
+ if ((r = fake_open->fill(cpu_env, fd))) {
+ close(fd);
+ return r;
+ }
+ lseek(fd, 0, SEEK_SET);
+
+ return fd;
+ }
+
+ return get_errno(sys_openat(dirfd, path(pathname), flags, mode));
+}
+
+#define TIMER_MAGIC 0x0caf0000
+#define TIMER_MAGIC_MASK 0xffff0000
+
+/* Convert QEMU provided timer ID back to internal 16bit index format */
+static target_timer_t get_timer_id(abi_long arg)
+{
+ target_timer_t timerid = arg;
+
+ if ((timerid & TIMER_MAGIC_MASK) != TIMER_MAGIC) {
+ return -TARGET_EINVAL;
+ }
+
+ timerid &= 0xffff;
+
+ if (timerid >= ARRAY_SIZE(g_posix_timers)) {
+ return -TARGET_EINVAL;
+ }
+
+ return timerid;
+}
+
+/* do_syscall() should always have a single exit point at the end so
+ that actions, such as logging of syscall results, can be performed.
+ All errnos that do_syscall() returns must be -TARGET_<errcode>. */
+abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
+ abi_long arg2, abi_long arg3, abi_long arg4,
+ abi_long arg5, abi_long arg6, abi_long arg7,
+ abi_long arg8)
+{
+ CPUState *cpu = ENV_GET_CPU(cpu_env);
+ abi_long ret;
+ struct stat st;
+ struct statfs stfs;
+ void *p;
+
+#ifdef DEBUG
+ gemu_log("syscall %d", num);
+#endif
+ if(do_strace)
+ print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
+
+ switch(num) {
+ case TARGET_NR_exit:
+ /* In old applications this may be used to implement _exit(2).
+ However in threaded applictions it is used for thread termination,
+ and _exit_group is used for application termination.
+ Do thread termination if we have more then one thread. */
+ /* FIXME: This probably breaks if a signal arrives. We should probably
+ be disabling signals. */
+ if (CPU_NEXT(first_cpu)) {
+ TaskState *ts;
+
+ cpu_list_lock();
+ /* Remove the CPU from the list. */
+ QTAILQ_REMOVE(&cpus, cpu, node);
+ cpu_list_unlock();
+ ts = cpu->opaque;
+ if (ts->child_tidptr) {
+ put_user_u32(0, ts->child_tidptr);
+ sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,
+ NULL, NULL, 0);
+ }
+ thread_cpu = NULL;
+ object_unref(OBJECT(cpu));
+ g_free(ts);
+ pthread_exit(NULL);
+ }
+#ifdef TARGET_GPROF
+ _mcleanup();
+#endif
+ gdb_exit(cpu_env, arg1);
+ _exit(arg1);
+ ret = 0; /* avoid warning */
+ break;
+ case TARGET_NR_read:
+ if (arg3 == 0)
+ ret = 0;
+ else {
+ if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
+ goto efault;
+ ret = get_errno(read(arg1, p, arg3));
+ unlock_user(p, arg2, ret);
+ }
+ break;
+ case TARGET_NR_write:
+ if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
+ goto efault;
+ ret = get_errno(write(arg1, p, arg3));
+ unlock_user(p, arg2, 0);
+ break;
+ case TARGET_NR_open:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(do_openat(cpu_env, AT_FDCWD, p,
+ target_to_host_bitmask(arg2, fcntl_flags_tbl),
+ arg3));
+ unlock_user(p, arg1, 0);
+ break;
+ case TARGET_NR_openat:
+ if (!(p = lock_user_string(arg2)))
+ goto efault;
+ ret = get_errno(do_openat(cpu_env, arg1, p,
+ target_to_host_bitmask(arg3, fcntl_flags_tbl),
+ arg4));
+ unlock_user(p, arg2, 0);
+ break;
+ case TARGET_NR_close:
+ ret = get_errno(close(arg1));
+ break;
+ case TARGET_NR_brk:
+ ret = do_brk(arg1);
+ break;
+ case TARGET_NR_fork:
+ ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, 0, 0, 0));
+ break;
+#ifdef TARGET_NR_waitpid
+ case TARGET_NR_waitpid:
+ {
+ int status;
+ ret = get_errno(waitpid(arg1, &status, arg3));
+ if (!is_error(ret) && arg2 && ret
+ && put_user_s32(host_to_target_waitstatus(status), arg2))
+ goto efault;
+ }
+ break;
+#endif
+#ifdef TARGET_NR_waitid
+ case TARGET_NR_waitid:
+ {
+ siginfo_t info;
+ info.si_pid = 0;
+ ret = get_errno(waitid(arg1, arg2, &info, arg4));
+ if (!is_error(ret) && arg3 && info.si_pid != 0) {
+ if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
+ goto efault;
+ host_to_target_siginfo(p, &info);
+ unlock_user(p, arg3, sizeof(target_siginfo_t));
+ }
+ }
+ break;
+#endif
+#ifdef TARGET_NR_creat /* not on alpha */
+ case TARGET_NR_creat:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(creat(p, arg2));
+ unlock_user(p, arg1, 0);
+ break;
+#endif
+ case TARGET_NR_link:
+ {
+ void * p2;
+ p = lock_user_string(arg1);
+ p2 = lock_user_string(arg2);
+ if (!p || !p2)
+ ret = -TARGET_EFAULT;
+ else
+ ret = get_errno(link(p, p2));
+ unlock_user(p2, arg2, 0);
+ unlock_user(p, arg1, 0);
+ }
+ break;
+#if defined(TARGET_NR_linkat)
+ case TARGET_NR_linkat:
+ {
+ void * p2 = NULL;
+ if (!arg2 || !arg4)
+ goto efault;
+ p = lock_user_string(arg2);
+ p2 = lock_user_string(arg4);
+ if (!p || !p2)
+ ret = -TARGET_EFAULT;
+ else
+ ret = get_errno(linkat(arg1, p, arg3, p2, arg5));
+ unlock_user(p, arg2, 0);
+ unlock_user(p2, arg4, 0);
+ }
+ break;
+#endif
+ case TARGET_NR_unlink:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(unlink(p));
+ unlock_user(p, arg1, 0);
+ break;
+#if defined(TARGET_NR_unlinkat)
+ case TARGET_NR_unlinkat:
+ if (!(p = lock_user_string(arg2)))
+ goto efault;
+ ret = get_errno(unlinkat(arg1, p, arg3));
+ unlock_user(p, arg2, 0);
+ break;
+#endif
+ case TARGET_NR_execve:
+ {
+ char **argp, **envp;
+ int argc, envc;
+ abi_ulong gp;
+ abi_ulong guest_argp;
+ abi_ulong guest_envp;
+ abi_ulong addr;
+ char **q;
+ int total_size = 0;
+
+ argc = 0;
+ guest_argp = arg2;
+ for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
+ if (get_user_ual(addr, gp))
+ goto efault;
+ if (!addr)
+ break;
+ argc++;
+ }
+ envc = 0;
+ guest_envp = arg3;
+ for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
+ if (get_user_ual(addr, gp))
+ goto efault;
+ if (!addr)
+ break;
+ envc++;
+ }
+
+ argp = alloca((argc + 1) * sizeof(void *));
+ envp = alloca((envc + 1) * sizeof(void *));
+
+ for (gp = guest_argp, q = argp; gp;
+ gp += sizeof(abi_ulong), q++) {
+ if (get_user_ual(addr, gp))
+ goto execve_efault;
+ if (!addr)
+ break;
+ if (!(*q = lock_user_string(addr)))
+ goto execve_efault;
+ total_size += strlen(*q) + 1;
+ }
+ *q = NULL;
+
+ for (gp = guest_envp, q = envp; gp;
+ gp += sizeof(abi_ulong), q++) {
+ if (get_user_ual(addr, gp))
+ goto execve_efault;
+ if (!addr)
+ break;
+ if (!(*q = lock_user_string(addr)))
+ goto execve_efault;
+ total_size += strlen(*q) + 1;
+ }
+ *q = NULL;
+
+ /* This case will not be caught by the host's execve() if its
+ page size is bigger than the target's. */
+ if (total_size > MAX_ARG_PAGES * TARGET_PAGE_SIZE) {
+ ret = -TARGET_E2BIG;
+ goto execve_end;
+ }
+ if (!(p = lock_user_string(arg1)))
+ goto execve_efault;
+ ret = get_errno(execve(p, argp, envp));
+ unlock_user(p, arg1, 0);
+
+ goto execve_end;
+
+ execve_efault:
+ ret = -TARGET_EFAULT;
+
+ execve_end:
+ for (gp = guest_argp, q = argp; *q;
+ gp += sizeof(abi_ulong), q++) {
+ if (get_user_ual(addr, gp)
+ || !addr)
+ break;
+ unlock_user(*q, addr, 0);
+ }
+ for (gp = guest_envp, q = envp; *q;
+ gp += sizeof(abi_ulong), q++) {
+ if (get_user_ual(addr, gp)
+ || !addr)
+ break;
+ unlock_user(*q, addr, 0);
+ }
+ }
+ break;
+ case TARGET_NR_chdir:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(chdir(p));
+ unlock_user(p, arg1, 0);
+ break;
+#ifdef TARGET_NR_time
+ case TARGET_NR_time:
+ {
+ time_t host_time;
+ ret = get_errno(time(&host_time));
+ if (!is_error(ret)
+ && arg1
+ && put_user_sal(host_time, arg1))
+ goto efault;
+ }
+ break;
+#endif
+ case TARGET_NR_mknod:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(mknod(p, arg2, arg3));
+ unlock_user(p, arg1, 0);
+ break;
+#if defined(TARGET_NR_mknodat)
+ case TARGET_NR_mknodat:
+ if (!(p = lock_user_string(arg2)))
+ goto efault;
+ ret = get_errno(mknodat(arg1, p, arg3, arg4));
+ unlock_user(p, arg2, 0);
+ break;
+#endif
+ case TARGET_NR_chmod:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(chmod(p, arg2));
+ unlock_user(p, arg1, 0);
+ break;
+#ifdef TARGET_NR_break
+ case TARGET_NR_break:
+ goto unimplemented;
+#endif
+#ifdef TARGET_NR_oldstat
+ case TARGET_NR_oldstat:
+ goto unimplemented;
+#endif
+ case TARGET_NR_lseek:
+ ret = get_errno(lseek(arg1, arg2, arg3));
+ break;
+#if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)
+ /* Alpha specific */
+ case TARGET_NR_getxpid:
+ ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid();
+ ret = get_errno(getpid());
+ break;
+#endif
+#ifdef TARGET_NR_getpid
+ case TARGET_NR_getpid:
+ ret = get_errno(getpid());
+ break;
+#endif
+ case TARGET_NR_mount:
+ {
+ /* need to look at the data field */
+ void *p2, *p3;
+
+ if (arg1) {
+ p = lock_user_string(arg1);
+ if (!p) {
+ goto efault;
+ }
+ } else {
+ p = NULL;
+ }
+
+ p2 = lock_user_string(arg2);
+ if (!p2) {
+ if (arg1) {
+ unlock_user(p, arg1, 0);
+ }
+ goto efault;
+ }
+
+ if (arg3) {
+ p3 = lock_user_string(arg3);
+ if (!p3) {
+ if (arg1) {
+ unlock_user(p, arg1, 0);
+ }
+ unlock_user(p2, arg2, 0);
+ goto efault;
+ }
+ } else {
+ p3 = NULL;
+ }
+
+ /* FIXME - arg5 should be locked, but it isn't clear how to
+ * do that since it's not guaranteed to be a NULL-terminated
+ * string.
+ */
+ if (!arg5) {
+ ret = mount(p, p2, p3, (unsigned long)arg4, NULL);
+ } else {
+ ret = mount(p, p2, p3, (unsigned long)arg4, g2h(arg5));
+ }
+ ret = get_errno(ret);
+
+ if (arg1) {
+ unlock_user(p, arg1, 0);
+ }
+ unlock_user(p2, arg2, 0);
+ if (arg3) {
+ unlock_user(p3, arg3, 0);
+ }
+ }
+ break;
+#ifdef TARGET_NR_umount
+ case TARGET_NR_umount:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(umount(p));
+ unlock_user(p, arg1, 0);
+ break;
+#endif
+#ifdef TARGET_NR_stime /* not on alpha */
+ case TARGET_NR_stime:
+ {
+ time_t host_time;
+ if (get_user_sal(host_time, arg1))
+ goto efault;
+ ret = get_errno(stime(&host_time));
+ }
+ break;
+#endif
+ case TARGET_NR_ptrace:
+ goto unimplemented;
+#ifdef TARGET_NR_alarm /* not on alpha */
+ case TARGET_NR_alarm:
+ ret = alarm(arg1);
+ break;
+#endif
+#ifdef TARGET_NR_oldfstat
+ case TARGET_NR_oldfstat:
+ goto unimplemented;
+#endif
+#ifdef TARGET_NR_pause /* not on alpha */
+ case TARGET_NR_pause:
+ ret = get_errno(pause());
+ break;
+#endif
+#ifdef TARGET_NR_utime
+ case TARGET_NR_utime:
+ {
+ struct utimbuf tbuf, *host_tbuf;
+ struct target_utimbuf *target_tbuf;
+ if (arg2) {
+ if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
+ goto efault;
+ tbuf.actime = tswapal(target_tbuf->actime);
+ tbuf.modtime = tswapal(target_tbuf->modtime);
+ unlock_user_struct(target_tbuf, arg2, 0);
+ host_tbuf = &tbuf;
+ } else {
+ host_tbuf = NULL;
+ }
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(utime(p, host_tbuf));
+ unlock_user(p, arg1, 0);
+ }
+ break;
+#endif
+ case TARGET_NR_utimes:
+ {
+ struct timeval *tvp, tv[2];
+ if (arg2) {
+ if (copy_from_user_timeval(&tv[0], arg2)
+ || copy_from_user_timeval(&tv[1],
+ arg2 + sizeof(struct target_timeval)))
+ goto efault;
+ tvp = tv;
+ } else {
+ tvp = NULL;
+ }
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(utimes(p, tvp));
+ unlock_user(p, arg1, 0);
+ }
+ break;
+#if defined(TARGET_NR_futimesat)
+ case TARGET_NR_futimesat:
+ {
+ struct timeval *tvp, tv[2];
+ if (arg3) {
+ if (copy_from_user_timeval(&tv[0], arg3)
+ || copy_from_user_timeval(&tv[1],
+ arg3 + sizeof(struct target_timeval)))
+ goto efault;
+ tvp = tv;
+ } else {
+ tvp = NULL;
+ }
+ if (!(p = lock_user_string(arg2)))
+ goto efault;
+ ret = get_errno(futimesat(arg1, path(p), tvp));
+ unlock_user(p, arg2, 0);
+ }
+ break;
+#endif
+#ifdef TARGET_NR_stty
+ case TARGET_NR_stty:
+ goto unimplemented;
+#endif
+#ifdef TARGET_NR_gtty
+ case TARGET_NR_gtty:
+ goto unimplemented;
+#endif
+ case TARGET_NR_access:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(access(path(p), arg2));
+ unlock_user(p, arg1, 0);
+ break;
+#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
+ case TARGET_NR_faccessat:
+ if (!(p = lock_user_string(arg2)))
+ goto efault;
+ ret = get_errno(faccessat(arg1, p, arg3, 0));
+ unlock_user(p, arg2, 0);
+ break;
+#endif
+#ifdef TARGET_NR_nice /* not on alpha */
+ case TARGET_NR_nice:
+ ret = get_errno(nice(arg1));
+ break;
+#endif
+#ifdef TARGET_NR_ftime
+ case TARGET_NR_ftime:
+ goto unimplemented;
+#endif
+ case TARGET_NR_sync:
+ sync();
+ ret = 0;
+ break;
+ case TARGET_NR_kill:
+ ret = get_errno(kill(arg1, target_to_host_signal(arg2)));
+ break;
+ case TARGET_NR_rename:
+ {
+ void *p2;
+ p = lock_user_string(arg1);
+ p2 = lock_user_string(arg2);
+ if (!p || !p2)
+ ret = -TARGET_EFAULT;
+ else
+ ret = get_errno(rename(p, p2));
+ unlock_user(p2, arg2, 0);
+ unlock_user(p, arg1, 0);
+ }
+ break;
+#if defined(TARGET_NR_renameat)
+ case TARGET_NR_renameat:
+ {
+ void *p2;
+ p = lock_user_string(arg2);
+ p2 = lock_user_string(arg4);
+ if (!p || !p2)
+ ret = -TARGET_EFAULT;
+ else
+ ret = get_errno(renameat(arg1, p, arg3, p2));
+ unlock_user(p2, arg4, 0);
+ unlock_user(p, arg2, 0);
+ }
+ break;
+#endif
+ case TARGET_NR_mkdir:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(mkdir(p, arg2));
+ unlock_user(p, arg1, 0);
+ break;
+#if defined(TARGET_NR_mkdirat)
+ case TARGET_NR_mkdirat:
+ if (!(p = lock_user_string(arg2)))
+ goto efault;
+ ret = get_errno(mkdirat(arg1, p, arg3));
+ unlock_user(p, arg2, 0);
+ break;
+#endif
+ case TARGET_NR_rmdir:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(rmdir(p));
+ unlock_user(p, arg1, 0);
+ break;
+ case TARGET_NR_dup:
+ ret = get_errno(dup(arg1));
+ break;
+ case TARGET_NR_pipe:
+ ret = do_pipe(cpu_env, arg1, 0, 0);
+ break;
+#ifdef TARGET_NR_pipe2
+ case TARGET_NR_pipe2:
+ ret = do_pipe(cpu_env, arg1,
+ target_to_host_bitmask(arg2, fcntl_flags_tbl), 1);
+ break;
+#endif
+ case TARGET_NR_times:
+ {
+ struct target_tms *tmsp;
+ struct tms tms;
+ ret = get_errno(times(&tms));
+ if (arg1) {
+ tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
+ if (!tmsp)
+ goto efault;
+ tmsp->tms_utime = tswapal(host_to_target_clock_t(tms.tms_utime));
+ tmsp->tms_stime = tswapal(host_to_target_clock_t(tms.tms_stime));
+ tmsp->tms_cutime = tswapal(host_to_target_clock_t(tms.tms_cutime));
+ tmsp->tms_cstime = tswapal(host_to_target_clock_t(tms.tms_cstime));
+ }
+ if (!is_error(ret))
+ ret = host_to_target_clock_t(ret);
+ }
+ break;
+#ifdef TARGET_NR_prof
+ case TARGET_NR_prof:
+ goto unimplemented;
+#endif
+#ifdef TARGET_NR_signal
+ case TARGET_NR_signal:
+ goto unimplemented;
+#endif
+ case TARGET_NR_acct:
+ if (arg1 == 0) {
+ ret = get_errno(acct(NULL));
+ } else {
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(acct(path(p)));
+ unlock_user(p, arg1, 0);
+ }
+ break;
+#ifdef TARGET_NR_umount2
+ case TARGET_NR_umount2:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(umount2(p, arg2));
+ unlock_user(p, arg1, 0);
+ break;
+#endif
+#ifdef TARGET_NR_lock
+ case TARGET_NR_lock:
+ goto unimplemented;
+#endif
+ case TARGET_NR_ioctl:
+ ret = do_ioctl(arg1, arg2, arg3);
+ break;
+ case TARGET_NR_fcntl:
+ ret = do_fcntl(arg1, arg2, arg3);
+ break;
+#ifdef TARGET_NR_mpx
+ case TARGET_NR_mpx:
+ goto unimplemented;
+#endif
+ case TARGET_NR_setpgid:
+ ret = get_errno(setpgid(arg1, arg2));
+ break;
+#ifdef TARGET_NR_ulimit
+ case TARGET_NR_ulimit:
+ goto unimplemented;
+#endif
+#ifdef TARGET_NR_oldolduname
+ case TARGET_NR_oldolduname:
+ goto unimplemented;
+#endif
+ case TARGET_NR_umask:
+ ret = get_errno(umask(arg1));
+ break;
+ case TARGET_NR_chroot:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(chroot(p));
+ unlock_user(p, arg1, 0);
+ break;
+ case TARGET_NR_ustat:
+ goto unimplemented;
+ case TARGET_NR_dup2:
+ ret = get_errno(dup2(arg1, arg2));
+ break;
+#if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
+ case TARGET_NR_dup3:
+ ret = get_errno(dup3(arg1, arg2, arg3));
+ break;
+#endif
+#ifdef TARGET_NR_getppid /* not on alpha */
+ case TARGET_NR_getppid:
+ ret = get_errno(getppid());
+ break;
+#endif
+ case TARGET_NR_getpgrp:
+ ret = get_errno(getpgrp());
+ break;
+ case TARGET_NR_setsid:
+ ret = get_errno(setsid());
+ break;
+#ifdef TARGET_NR_sigaction
+ case TARGET_NR_sigaction:
+ {
+#if defined(TARGET_ALPHA)
+ struct target_sigaction act, oact, *pact = 0;
+ struct target_old_sigaction *old_act;
+ if (arg2) {
+ if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
+ goto efault;
+ act._sa_handler = old_act->_sa_handler;
+ target_siginitset(&act.sa_mask, old_act->sa_mask);
+ act.sa_flags = old_act->sa_flags;
+ act.sa_restorer = 0;
+ unlock_user_struct(old_act, arg2, 0);
+ pact = &act;
+ }
+ ret = get_errno(do_sigaction(arg1, pact, &oact));
+ if (!is_error(ret) && arg3) {
+ if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
+ goto efault;
+ old_act->_sa_handler = oact._sa_handler;
+ old_act->sa_mask = oact.sa_mask.sig[0];
+ old_act->sa_flags = oact.sa_flags;
+ unlock_user_struct(old_act, arg3, 1);
+ }
+#elif defined(TARGET_MIPS)
+ struct target_sigaction act, oact, *pact, *old_act;
+
+ if (arg2) {
+ if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
+ goto efault;
+ act._sa_handler = old_act->_sa_handler;
+ target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
+ act.sa_flags = old_act->sa_flags;
+ unlock_user_struct(old_act, arg2, 0);
+ pact = &act;
+ } else {
+ pact = NULL;
+ }
+
+ ret = get_errno(do_sigaction(arg1, pact, &oact));
+
+ if (!is_error(ret) && arg3) {
+ if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
+ goto efault;
+ old_act->_sa_handler = oact._sa_handler;
+ old_act->sa_flags = oact.sa_flags;
+ old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
+ old_act->sa_mask.sig[1] = 0;
+ old_act->sa_mask.sig[2] = 0;
+ old_act->sa_mask.sig[3] = 0;
+ unlock_user_struct(old_act, arg3, 1);
+ }
+#else
+ struct target_old_sigaction *old_act;
+ struct target_sigaction act, oact, *pact;
+ if (arg2) {
+ if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
+ goto efault;
+ act._sa_handler = old_act->_sa_handler;
+ target_siginitset(&act.sa_mask, old_act->sa_mask);
+ act.sa_flags = old_act->sa_flags;
+ act.sa_restorer = old_act->sa_restorer;
+ unlock_user_struct(old_act, arg2, 0);
+ pact = &act;
+ } else {
+ pact = NULL;
+ }
+ ret = get_errno(do_sigaction(arg1, pact, &oact));
+ if (!is_error(ret) && arg3) {
+ if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
+ goto efault;
+ old_act->_sa_handler = oact._sa_handler;
+ old_act->sa_mask = oact.sa_mask.sig[0];
+ old_act->sa_flags = oact.sa_flags;
+ old_act->sa_restorer = oact.sa_restorer;
+ unlock_user_struct(old_act, arg3, 1);
+ }
+#endif
+ }
+ break;
+#endif
+ case TARGET_NR_rt_sigaction:
+ {
+#if defined(TARGET_ALPHA)
+ struct target_sigaction act, oact, *pact = 0;
+ struct target_rt_sigaction *rt_act;
+ /* ??? arg4 == sizeof(sigset_t). */
+ if (arg2) {
+ if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1))
+ goto efault;
+ act._sa_handler = rt_act->_sa_handler;
+ act.sa_mask = rt_act->sa_mask;
+ act.sa_flags = rt_act->sa_flags;
+ act.sa_restorer = arg5;
+ unlock_user_struct(rt_act, arg2, 0);
+ pact = &act;
+ }
+ ret = get_errno(do_sigaction(arg1, pact, &oact));
+ if (!is_error(ret) && arg3) {
+ if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0))
+ goto efault;
+ rt_act->_sa_handler = oact._sa_handler;
+ rt_act->sa_mask = oact.sa_mask;
+ rt_act->sa_flags = oact.sa_flags;
+ unlock_user_struct(rt_act, arg3, 1);
+ }
+#else
+ struct target_sigaction *act;
+ struct target_sigaction *oact;
+
+ if (arg2) {
+ if (!lock_user_struct(VERIFY_READ, act, arg2, 1))
+ goto efault;
+ } else
+ act = NULL;
+ if (arg3) {
+ if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
+ ret = -TARGET_EFAULT;
+ goto rt_sigaction_fail;
+ }
+ } else
+ oact = NULL;
+ ret = get_errno(do_sigaction(arg1, act, oact));
+ rt_sigaction_fail:
+ if (act)
+ unlock_user_struct(act, arg2, 0);
+ if (oact)
+ unlock_user_struct(oact, arg3, 1);
+#endif
+ }
+ break;
+#ifdef TARGET_NR_sgetmask /* not on alpha */
+ case TARGET_NR_sgetmask:
+ {
+ sigset_t cur_set;
+ abi_ulong target_set;
+ do_sigprocmask(0, NULL, &cur_set);
+ host_to_target_old_sigset(&target_set, &cur_set);
+ ret = target_set;
+ }
+ break;
+#endif
+#ifdef TARGET_NR_ssetmask /* not on alpha */
+ case TARGET_NR_ssetmask:
+ {
+ sigset_t set, oset, cur_set;
+ abi_ulong target_set = arg1;
+ do_sigprocmask(0, NULL, &cur_set);
+ target_to_host_old_sigset(&set, &target_set);
+ sigorset(&set, &set, &cur_set);
+ do_sigprocmask(SIG_SETMASK, &set, &oset);
+ host_to_target_old_sigset(&target_set, &oset);
+ ret = target_set;
+ }
+ break;
+#endif
+#ifdef TARGET_NR_sigprocmask
+ case TARGET_NR_sigprocmask:
+ {
+#if defined(TARGET_ALPHA)
+ sigset_t set, oldset;
+ abi_ulong mask;
+ int how;
+
+ switch (arg1) {
+ case TARGET_SIG_BLOCK:
+ how = SIG_BLOCK;
+ break;
+ case TARGET_SIG_UNBLOCK:
+ how = SIG_UNBLOCK;
+ break;
+ case TARGET_SIG_SETMASK:
+ how = SIG_SETMASK;
+ break;
+ default:
+ ret = -TARGET_EINVAL;
+ goto fail;
+ }
+ mask = arg2;
+ target_to_host_old_sigset(&set, &mask);
+
+ ret = get_errno(do_sigprocmask(how, &set, &oldset));
+ if (!is_error(ret)) {
+ host_to_target_old_sigset(&mask, &oldset);
+ ret = mask;
+ ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; /* force no error */
+ }
+#else
+ sigset_t set, oldset, *set_ptr;
+ int how;
+
+ if (arg2) {
+ switch (arg1) {
+ case TARGET_SIG_BLOCK:
+ how = SIG_BLOCK;
+ break;
+ case TARGET_SIG_UNBLOCK:
+ how = SIG_UNBLOCK;
+ break;
+ case TARGET_SIG_SETMASK:
+ how = SIG_SETMASK;
+ break;
+ default:
+ ret = -TARGET_EINVAL;
+ goto fail;
+ }
+ if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
+ goto efault;
+ target_to_host_old_sigset(&set, p);
+ unlock_user(p, arg2, 0);
+ set_ptr = &set;
+ } else {
+ how = 0;
+ set_ptr = NULL;
+ }
+ ret = get_errno(do_sigprocmask(how, set_ptr, &oldset));
+ if (!is_error(ret) && arg3) {
+ if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
+ goto efault;
+ host_to_target_old_sigset(p, &oldset);
+ unlock_user(p, arg3, sizeof(target_sigset_t));
+ }
+#endif
+ }
+ break;
+#endif
+ case TARGET_NR_rt_sigprocmask:
+ {
+ int how = arg1;
+ sigset_t set, oldset, *set_ptr;
+
+ if (arg2) {
+ switch(how) {
+ case TARGET_SIG_BLOCK:
+ how = SIG_BLOCK;
+ break;
+ case TARGET_SIG_UNBLOCK:
+ how = SIG_UNBLOCK;
+ break;
+ case TARGET_SIG_SETMASK:
+ how = SIG_SETMASK;
+ break;
+ default:
+ ret = -TARGET_EINVAL;
+ goto fail;
+ }
+ if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
+ goto efault;
+ target_to_host_sigset(&set, p);
+ unlock_user(p, arg2, 0);
+ set_ptr = &set;
+ } else {
+ how = 0;
+ set_ptr = NULL;
+ }
+ ret = get_errno(do_sigprocmask(how, set_ptr, &oldset));
+ if (!is_error(ret) && arg3) {
+ if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
+ goto efault;
+ host_to_target_sigset(p, &oldset);
+ unlock_user(p, arg3, sizeof(target_sigset_t));
+ }
+ }
+ break;
+#ifdef TARGET_NR_sigpending
+ case TARGET_NR_sigpending:
+ {
+ sigset_t set;
+ ret = get_errno(sigpending(&set));
+ if (!is_error(ret)) {
+ if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
+ goto efault;
+ host_to_target_old_sigset(p, &set);
+ unlock_user(p, arg1, sizeof(target_sigset_t));
+ }
+ }
+ break;
+#endif
+ case TARGET_NR_rt_sigpending:
+ {
+ sigset_t set;
+ ret = get_errno(sigpending(&set));
+ if (!is_error(ret)) {
+ if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
+ goto efault;
+ host_to_target_sigset(p, &set);
+ unlock_user(p, arg1, sizeof(target_sigset_t));
+ }
+ }
+ break;
+#ifdef TARGET_NR_sigsuspend
+ case TARGET_NR_sigsuspend:
+ {
+ sigset_t set;
+#if defined(TARGET_ALPHA)
+ abi_ulong mask = arg1;
+ target_to_host_old_sigset(&set, &mask);
+#else
+ if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
+ goto efault;
+ target_to_host_old_sigset(&set, p);
+ unlock_user(p, arg1, 0);
+#endif
+ ret = get_errno(sigsuspend(&set));
+ }
+ break;
+#endif
+ case TARGET_NR_rt_sigsuspend:
+ {
+ sigset_t set;
+ if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
+ goto efault;
+ target_to_host_sigset(&set, p);
+ unlock_user(p, arg1, 0);
+ ret = get_errno(sigsuspend(&set));
+ }
+ break;
+ case TARGET_NR_rt_sigtimedwait:
+ {
+ sigset_t set;
+ struct timespec uts, *puts;
+ siginfo_t uinfo;
+
+ if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
+ goto efault;
+ target_to_host_sigset(&set, p);
+ unlock_user(p, arg1, 0);
+ if (arg3) {
+ puts = &uts;
+ target_to_host_timespec(puts, arg3);
+ } else {
+ puts = NULL;
+ }
+ ret = get_errno(sigtimedwait(&set, &uinfo, puts));
+ if (!is_error(ret)) {
+ if (arg2) {
+ p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t),
+ 0);
+ if (!p) {
+ goto efault;
+ }
+ host_to_target_siginfo(p, &uinfo);
+ unlock_user(p, arg2, sizeof(target_siginfo_t));
+ }
+ ret = host_to_target_signal(ret);
+ }
+ }
+ break;
+ case TARGET_NR_rt_sigqueueinfo:
+ {
+ siginfo_t uinfo;
+ if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1)))
+ goto efault;
+ target_to_host_siginfo(&uinfo, p);
+ unlock_user(p, arg1, 0);
+ ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
+ }
+ break;
+#ifdef TARGET_NR_sigreturn
+ case TARGET_NR_sigreturn:
+ /* NOTE: ret is eax, so not transcoding must be done */
+ ret = do_sigreturn(cpu_env);
+ break;
+#endif
+ case TARGET_NR_rt_sigreturn:
+ /* NOTE: ret is eax, so not transcoding must be done */
+ ret = do_rt_sigreturn(cpu_env);
+ break;
+ case TARGET_NR_sethostname:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(sethostname(p, arg2));
+ unlock_user(p, arg1, 0);
+ break;
+ case TARGET_NR_setrlimit:
+ {
+ int resource = target_to_host_resource(arg1);
+ struct target_rlimit *target_rlim;
+ struct rlimit rlim;
+ if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
+ goto efault;
+ rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);
+ rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);
+ unlock_user_struct(target_rlim, arg2, 0);
+ ret = get_errno(setrlimit(resource, &rlim));
+ }
+ break;
+ case TARGET_NR_getrlimit:
+ {
+ int resource = target_to_host_resource(arg1);
+ struct target_rlimit *target_rlim;
+ struct rlimit rlim;
+
+ ret = get_errno(getrlimit(resource, &rlim));
+ if (!is_error(ret)) {
+ if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
+ goto efault;
+ target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
+ target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
+ unlock_user_struct(target_rlim, arg2, 1);
+ }
+ }
+ break;
+ case TARGET_NR_getrusage:
+ {
+ struct rusage rusage;
+ ret = get_errno(getrusage(arg1, &rusage));
+ if (!is_error(ret)) {
+ ret = host_to_target_rusage(arg2, &rusage);
+ }
+ }
+ break;
+ case TARGET_NR_gettimeofday:
+ {
+ struct timeval tv;
+ ret = get_errno(gettimeofday(&tv, NULL));
+ if (!is_error(ret)) {
+ if (copy_to_user_timeval(arg1, &tv))
+ goto efault;
+ }
+ }
+ break;
+ case TARGET_NR_settimeofday:
+ {
+ struct timeval tv, *ptv = NULL;
+ struct timezone tz, *ptz = NULL;
+
+ if (arg1) {
+ if (copy_from_user_timeval(&tv, arg1)) {
+ goto efault;
+ }
+ ptv = &tv;
+ }
+
+ if (arg2) {
+ if (copy_from_user_timezone(&tz, arg2)) {
+ goto efault;
+ }
+ ptz = &tz;
+ }
+
+ ret = get_errno(settimeofday(ptv, ptz));
+ }
+ break;
+#if defined(TARGET_NR_select)
+ case TARGET_NR_select:
+#if defined(TARGET_S390X) || defined(TARGET_ALPHA)
+ ret = do_select(arg1, arg2, arg3, arg4, arg5);
+#else
+ {
+ struct target_sel_arg_struct *sel;
+ abi_ulong inp, outp, exp, tvp;
+ long nsel;
+
+ if (!lock_user_struct(VERIFY_READ, sel, arg1, 1))
+ goto efault;
+ nsel = tswapal(sel->n);
+ inp = tswapal(sel->inp);
+ outp = tswapal(sel->outp);
+ exp = tswapal(sel->exp);
+ tvp = tswapal(sel->tvp);
+ unlock_user_struct(sel, arg1, 0);
+ ret = do_select(nsel, inp, outp, exp, tvp);
+ }
+#endif
+ break;
+#endif
+#ifdef TARGET_NR_pselect6
+ case TARGET_NR_pselect6:
+ {
+ abi_long rfd_addr, wfd_addr, efd_addr, n, ts_addr;
+ fd_set rfds, wfds, efds;
+ fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
+ struct timespec ts, *ts_ptr;
+
+ /*
+ * The 6th arg is actually two args smashed together,
+ * so we cannot use the C library.
+ */
+ sigset_t set;
+ struct {
+ sigset_t *set;
+ size_t size;
+ } sig, *sig_ptr;
+
+ abi_ulong arg_sigset, arg_sigsize, *arg7;
+ target_sigset_t *target_sigset;
+
+ n = arg1;
+ rfd_addr = arg2;
+ wfd_addr = arg3;
+ efd_addr = arg4;
+ ts_addr = arg5;
+
+ ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
+ if (ret) {
+ goto fail;
+ }
+ ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
+ if (ret) {
+ goto fail;
+ }
+ ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
+ if (ret) {
+ goto fail;
+ }
+
+ /*
+ * This takes a timespec, and not a timeval, so we cannot
+ * use the do_select() helper ...
+ */
+ if (ts_addr) {
+ if (target_to_host_timespec(&ts, ts_addr)) {
+ goto efault;
+ }
+ ts_ptr = &ts;
+ } else {
+ ts_ptr = NULL;
+ }
+
+ /* Extract the two packed args for the sigset */
+ if (arg6) {
+ sig_ptr = &sig;
+ sig.size = _NSIG / 8;
+
+ arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1);
+ if (!arg7) {
+ goto efault;
+ }
+ arg_sigset = tswapal(arg7[0]);
+ arg_sigsize = tswapal(arg7[1]);
+ unlock_user(arg7, arg6, 0);
+
+ if (arg_sigset) {
+ sig.set = &set;
+ if (arg_sigsize != sizeof(*target_sigset)) {
+ /* Like the kernel, we enforce correct size sigsets */
+ ret = -TARGET_EINVAL;
+ goto fail;
+ }
+ target_sigset = lock_user(VERIFY_READ, arg_sigset,
+ sizeof(*target_sigset), 1);
+ if (!target_sigset) {
+ goto efault;
+ }
+ target_to_host_sigset(&set, target_sigset);
+ unlock_user(target_sigset, arg_sigset, 0);
+ } else {
+ sig.set = NULL;
+ }
+ } else {
+ sig_ptr = NULL;
+ }
+
+ ret = get_errno(sys_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
+ ts_ptr, sig_ptr));
+
+ if (!is_error(ret)) {
+ if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
+ goto efault;
+ if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
+ goto efault;
+ if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
+ goto efault;
+
+ if (ts_addr && host_to_target_timespec(ts_addr, &ts))
+ goto efault;
+ }
+ }
+ break;
+#endif
+ case TARGET_NR_symlink:
+ {
+ void *p2;
+ p = lock_user_string(arg1);
+ p2 = lock_user_string(arg2);
+ if (!p || !p2)
+ ret = -TARGET_EFAULT;
+ else
+ ret = get_errno(symlink(p, p2));
+ unlock_user(p2, arg2, 0);
+ unlock_user(p, arg1, 0);
+ }
+ break;
+#if defined(TARGET_NR_symlinkat)
+ case TARGET_NR_symlinkat:
+ {
+ void *p2;
+ p = lock_user_string(arg1);
+ p2 = lock_user_string(arg3);
+ if (!p || !p2)
+ ret = -TARGET_EFAULT;
+ else
+ ret = get_errno(symlinkat(p, arg2, p2));
+ unlock_user(p2, arg3, 0);
+ unlock_user(p, arg1, 0);
+ }
+ break;
+#endif
+#ifdef TARGET_NR_oldlstat
+ case TARGET_NR_oldlstat:
+ goto unimplemented;
+#endif
+ case TARGET_NR_readlink:
+ {
+ void *p2;
+ p = lock_user_string(arg1);
+ p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
+ if (!p || !p2) {
+ ret = -TARGET_EFAULT;
+ } else if (!arg3) {
+ /* Short circuit this for the magic exe check. */
+ ret = -TARGET_EINVAL;
+ } else if (is_proc_myself((const char *)p, "exe")) {
+ char real[PATH_MAX], *temp;
+ temp = realpath(exec_path, real);
+ /* Return value is # of bytes that we wrote to the buffer. */
+ if (temp == NULL) {
+ ret = get_errno(-1);
+ } else {
+ /* Don't worry about sign mismatch as earlier mapping
+ * logic would have thrown a bad address error. */
+ ret = MIN(strlen(real), arg3);
+ /* We cannot NUL terminate the string. */
+ memcpy(p2, real, ret);
+ }
+ } else {
+ ret = get_errno(readlink(path(p), p2, arg3));
+ }
+ unlock_user(p2, arg2, ret);
+ unlock_user(p, arg1, 0);
+ }
+ break;
+#if defined(TARGET_NR_readlinkat)
+ case TARGET_NR_readlinkat:
+ {
+ void *p2;
+ p = lock_user_string(arg2);
+ p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
+ if (!p || !p2) {
+ ret = -TARGET_EFAULT;
+ } else if (is_proc_myself((const char *)p, "exe")) {
+ char real[PATH_MAX], *temp;
+ temp = realpath(exec_path, real);
+ ret = temp == NULL ? get_errno(-1) : strlen(real) ;
+ snprintf((char *)p2, arg4, "%s", real);
+ } else {
+ ret = get_errno(readlinkat(arg1, path(p), p2, arg4));
+ }
+ unlock_user(p2, arg3, ret);
+ unlock_user(p, arg2, 0);
+ }
+ break;
+#endif
+#ifdef TARGET_NR_uselib
+ case TARGET_NR_uselib:
+ goto unimplemented;
+#endif
+#ifdef TARGET_NR_swapon
+ case TARGET_NR_swapon:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(swapon(p, arg2));
+ unlock_user(p, arg1, 0);
+ break;
+#endif
+ case TARGET_NR_reboot:
+ if (arg3 == LINUX_REBOOT_CMD_RESTART2) {
+ /* arg4 must be ignored in all other cases */
+ p = lock_user_string(arg4);
+ if (!p) {
+ goto efault;
+ }
+ ret = get_errno(reboot(arg1, arg2, arg3, p));
+ unlock_user(p, arg4, 0);
+ } else {
+ ret = get_errno(reboot(arg1, arg2, arg3, NULL));
+ }
+ break;
+#ifdef TARGET_NR_readdir
+ case TARGET_NR_readdir:
+ goto unimplemented;
+#endif
+#ifdef TARGET_NR_mmap
+ case TARGET_NR_mmap:
+#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || \
+ (defined(TARGET_ARM) && defined(TARGET_ABI32)) || \
+ defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \
+ || defined(TARGET_S390X)
+ {
+ abi_ulong *v;
+ abi_ulong v1, v2, v3, v4, v5, v6;
+ if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
+ goto efault;
+ v1 = tswapal(v[0]);
+ v2 = tswapal(v[1]);
+ v3 = tswapal(v[2]);
+ v4 = tswapal(v[3]);
+ v5 = tswapal(v[4]);
+ v6 = tswapal(v[5]);
+ unlock_user(v, arg1, 0);
+ ret = get_errno(target_mmap(v1, v2, v3,
+ target_to_host_bitmask(v4, mmap_flags_tbl),
+ v5, v6));
+ }
+#else
+ ret = get_errno(target_mmap(arg1, arg2, arg3,
+ target_to_host_bitmask(arg4, mmap_flags_tbl),
+ arg5,
+ arg6));
+#endif
+ break;
+#endif
+#ifdef TARGET_NR_mmap2
+ case TARGET_NR_mmap2:
+#ifndef MMAP_SHIFT
+#define MMAP_SHIFT 12
+#endif
+ ret = get_errno(target_mmap(arg1, arg2, arg3,
+ target_to_host_bitmask(arg4, mmap_flags_tbl),
+ arg5,
+ arg6 << MMAP_SHIFT));
+ break;
+#endif
+ case TARGET_NR_munmap:
+ ret = get_errno(target_munmap(arg1, arg2));
+ break;
+ case TARGET_NR_mprotect:
+ {
+ TaskState *ts = cpu->opaque;
+ /* Special hack to detect libc making the stack executable. */
+ if ((arg3 & PROT_GROWSDOWN)
+ && arg1 >= ts->info->stack_limit
+ && arg1 <= ts->info->start_stack) {
+ arg3 &= ~PROT_GROWSDOWN;
+ arg2 = arg2 + arg1 - ts->info->stack_limit;
+ arg1 = ts->info->stack_limit;
+ }
+ }
+ ret = get_errno(target_mprotect(arg1, arg2, arg3));
+ break;
+#ifdef TARGET_NR_mremap
+ case TARGET_NR_mremap:
+ ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
+ break;
+#endif
+ /* ??? msync/mlock/munlock are broken for softmmu. */
+#ifdef TARGET_NR_msync
+ case TARGET_NR_msync:
+ ret = get_errno(msync(g2h(arg1), arg2, arg3));
+ break;
+#endif
+#ifdef TARGET_NR_mlock
+ case TARGET_NR_mlock:
+ ret = get_errno(mlock(g2h(arg1), arg2));
+ break;
+#endif
+#ifdef TARGET_NR_munlock
+ case TARGET_NR_munlock:
+ ret = get_errno(munlock(g2h(arg1), arg2));
+ break;
+#endif
+#ifdef TARGET_NR_mlockall
+ case TARGET_NR_mlockall:
+ ret = get_errno(mlockall(target_to_host_mlockall_arg(arg1)));
+ break;
+#endif
+#ifdef TARGET_NR_munlockall
+ case TARGET_NR_munlockall:
+ ret = get_errno(munlockall());
+ break;
+#endif
+ case TARGET_NR_truncate:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(truncate(p, arg2));
+ unlock_user(p, arg1, 0);
+ break;
+ case TARGET_NR_ftruncate:
+ ret = get_errno(ftruncate(arg1, arg2));
+ break;
+ case TARGET_NR_fchmod:
+ ret = get_errno(fchmod(arg1, arg2));
+ break;
+#if defined(TARGET_NR_fchmodat)
+ case TARGET_NR_fchmodat:
+ if (!(p = lock_user_string(arg2)))
+ goto efault;
+ ret = get_errno(fchmodat(arg1, p, arg3, 0));
+ unlock_user(p, arg2, 0);
+ break;
+#endif
+ case TARGET_NR_getpriority:
+ /* Note that negative values are valid for getpriority, so we must
+ differentiate based on errno settings. */
+ errno = 0;
+ ret = getpriority(arg1, arg2);
+ if (ret == -1 && errno != 0) {
+ ret = -host_to_target_errno(errno);
+ break;
+ }
+#ifdef TARGET_ALPHA
+ /* Return value is the unbiased priority. Signal no error. */
+ ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0;
+#else
+ /* Return value is a biased priority to avoid negative numbers. */
+ ret = 20 - ret;
+#endif
+ break;
+ case TARGET_NR_setpriority:
+ ret = get_errno(setpriority(arg1, arg2, arg3));
+ break;
+#ifdef TARGET_NR_profil
+ case TARGET_NR_profil:
+ goto unimplemented;
+#endif
+ case TARGET_NR_statfs:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(statfs(path(p), &stfs));
+ unlock_user(p, arg1, 0);
+ convert_statfs:
+ if (!is_error(ret)) {
+ struct target_statfs *target_stfs;
+
+ if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
+ goto efault;
+ __put_user(stfs.f_type, &target_stfs->f_type);
+ __put_user(stfs.f_bsize, &target_stfs->f_bsize);
+ __put_user(stfs.f_blocks, &target_stfs->f_blocks);
+ __put_user(stfs.f_bfree, &target_stfs->f_bfree);
+ __put_user(stfs.f_bavail, &target_stfs->f_bavail);
+ __put_user(stfs.f_files, &target_stfs->f_files);
+ __put_user(stfs.f_ffree, &target_stfs->f_ffree);
+ __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
+ __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
+ __put_user(stfs.f_namelen, &target_stfs->f_namelen);
+ __put_user(stfs.f_frsize, &target_stfs->f_frsize);
+ memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
+ unlock_user_struct(target_stfs, arg2, 1);
+ }
+ break;
+ case TARGET_NR_fstatfs:
+ ret = get_errno(fstatfs(arg1, &stfs));
+ goto convert_statfs;
+#ifdef TARGET_NR_statfs64
+ case TARGET_NR_statfs64:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(statfs(path(p), &stfs));
+ unlock_user(p, arg1, 0);
+ convert_statfs64:
+ if (!is_error(ret)) {
+ struct target_statfs64 *target_stfs;
+
+ if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
+ goto efault;
+ __put_user(stfs.f_type, &target_stfs->f_type);
+ __put_user(stfs.f_bsize, &target_stfs->f_bsize);
+ __put_user(stfs.f_blocks, &target_stfs->f_blocks);
+ __put_user(stfs.f_bfree, &target_stfs->f_bfree);
+ __put_user(stfs.f_bavail, &target_stfs->f_bavail);
+ __put_user(stfs.f_files, &target_stfs->f_files);
+ __put_user(stfs.f_ffree, &target_stfs->f_ffree);
+ __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
+ __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
+ __put_user(stfs.f_namelen, &target_stfs->f_namelen);
+ __put_user(stfs.f_frsize, &target_stfs->f_frsize);
+ memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
+ unlock_user_struct(target_stfs, arg3, 1);
+ }
+ break;
+ case TARGET_NR_fstatfs64:
+ ret = get_errno(fstatfs(arg1, &stfs));
+ goto convert_statfs64;
+#endif
+#ifdef TARGET_NR_ioperm
+ case TARGET_NR_ioperm:
+ goto unimplemented;
+#endif
+#ifdef TARGET_NR_socketcall
+ case TARGET_NR_socketcall:
+ ret = do_socketcall(arg1, arg2);
+ break;
+#endif
+#ifdef TARGET_NR_accept
+ case TARGET_NR_accept:
+ ret = do_accept4(arg1, arg2, arg3, 0);
+ break;
+#endif
+#ifdef TARGET_NR_accept4
+ case TARGET_NR_accept4:
+#ifdef CONFIG_ACCEPT4
+ ret = do_accept4(arg1, arg2, arg3, arg4);
+#else
+ goto unimplemented;
+#endif
+ break;
+#endif
+#ifdef TARGET_NR_bind
+ case TARGET_NR_bind:
+ ret = do_bind(arg1, arg2, arg3);
+ break;
+#endif
+#ifdef TARGET_NR_connect
+ case TARGET_NR_connect:
+ ret = do_connect(arg1, arg2, arg3);
+ break;
+#endif
+#ifdef TARGET_NR_getpeername
+ case TARGET_NR_getpeername:
+ ret = do_getpeername(arg1, arg2, arg3);
+ break;
+#endif
+#ifdef TARGET_NR_getsockname
+ case TARGET_NR_getsockname:
+ ret = do_getsockname(arg1, arg2, arg3);
+ break;
+#endif
+#ifdef TARGET_NR_getsockopt
+ case TARGET_NR_getsockopt:
+ ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
+ break;
+#endif
+#ifdef TARGET_NR_listen
+ case TARGET_NR_listen:
+ ret = get_errno(listen(arg1, arg2));
+ break;
+#endif
+#ifdef TARGET_NR_recv
+ case TARGET_NR_recv:
+ ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
+ break;
+#endif
+#ifdef TARGET_NR_recvfrom
+ case TARGET_NR_recvfrom:
+ ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
+ break;
+#endif
+#ifdef TARGET_NR_recvmsg
+ case TARGET_NR_recvmsg:
+ ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
+ break;
+#endif
+#ifdef TARGET_NR_send
+ case TARGET_NR_send:
+ ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
+ break;
+#endif
+#ifdef TARGET_NR_sendmsg
+ case TARGET_NR_sendmsg:
+ ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
+ break;
+#endif
+#ifdef TARGET_NR_sendmmsg
+ case TARGET_NR_sendmmsg:
+ ret = do_sendrecvmmsg(arg1, arg2, arg3, arg4, 1);
+ break;
+ case TARGET_NR_recvmmsg:
+ ret = do_sendrecvmmsg(arg1, arg2, arg3, arg4, 0);
+ break;
+#endif
+#ifdef TARGET_NR_sendto
+ case TARGET_NR_sendto:
+ ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
+ break;
+#endif
+#ifdef TARGET_NR_shutdown
+ case TARGET_NR_shutdown:
+ ret = get_errno(shutdown(arg1, arg2));
+ break;
+#endif
+#ifdef TARGET_NR_socket
+ case TARGET_NR_socket:
+ ret = do_socket(arg1, arg2, arg3);
+ break;
+#endif
+#ifdef TARGET_NR_socketpair
+ case TARGET_NR_socketpair:
+ ret = do_socketpair(arg1, arg2, arg3, arg4);
+ break;
+#endif
+#ifdef TARGET_NR_setsockopt
+ case TARGET_NR_setsockopt:
+ ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
+ break;
+#endif
+
+ case TARGET_NR_syslog:
+ if (!(p = lock_user_string(arg2)))
+ goto efault;
+ ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
+ unlock_user(p, arg2, 0);
+ break;
+
+ case TARGET_NR_setitimer:
+ {
+ struct itimerval value, ovalue, *pvalue;
+
+ if (arg2) {
+ pvalue = &value;
+ if (copy_from_user_timeval(&pvalue->it_interval, arg2)
+ || copy_from_user_timeval(&pvalue->it_value,
+ arg2 + sizeof(struct target_timeval)))
+ goto efault;
+ } else {
+ pvalue = NULL;
+ }
+ ret = get_errno(setitimer(arg1, pvalue, &ovalue));
+ if (!is_error(ret) && arg3) {
+ if (copy_to_user_timeval(arg3,
+ &ovalue.it_interval)
+ || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
+ &ovalue.it_value))
+ goto efault;
+ }
+ }
+ break;
+ case TARGET_NR_getitimer:
+ {
+ struct itimerval value;
+
+ ret = get_errno(getitimer(arg1, &value));
+ if (!is_error(ret) && arg2) {
+ if (copy_to_user_timeval(arg2,
+ &value.it_interval)
+ || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
+ &value.it_value))
+ goto efault;
+ }
+ }
+ break;
+ case TARGET_NR_stat:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(stat(path(p), &st));
+ unlock_user(p, arg1, 0);
+ goto do_stat;
+ case TARGET_NR_lstat:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(lstat(path(p), &st));
+ unlock_user(p, arg1, 0);
+ goto do_stat;
+ case TARGET_NR_fstat:
+ {
+ ret = get_errno(fstat(arg1, &st));
+ do_stat:
+ if (!is_error(ret)) {
+ struct target_stat *target_st;
+
+ if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
+ goto efault;
+ memset(target_st, 0, sizeof(*target_st));
+ __put_user(st.st_dev, &target_st->st_dev);
+ __put_user(st.st_ino, &target_st->st_ino);
+ __put_user(st.st_mode, &target_st->st_mode);
+ __put_user(st.st_uid, &target_st->st_uid);
+ __put_user(st.st_gid, &target_st->st_gid);
+ __put_user(st.st_nlink, &target_st->st_nlink);
+ __put_user(st.st_rdev, &target_st->st_rdev);
+ __put_user(st.st_size, &target_st->st_size);
+ __put_user(st.st_blksize, &target_st->st_blksize);
+ __put_user(st.st_blocks, &target_st->st_blocks);
+ __put_user(st.st_atime, &target_st->target_st_atime);
+ __put_user(st.st_mtime, &target_st->target_st_mtime);
+ __put_user(st.st_ctime, &target_st->target_st_ctime);
+ unlock_user_struct(target_st, arg2, 1);
+ }
+ }
+ break;
+#ifdef TARGET_NR_olduname
+ case TARGET_NR_olduname:
+ goto unimplemented;
+#endif
+#ifdef TARGET_NR_iopl
+ case TARGET_NR_iopl:
+ goto unimplemented;
+#endif
+ case TARGET_NR_vhangup:
+ ret = get_errno(vhangup());
+ break;
+#ifdef TARGET_NR_idle
+ case TARGET_NR_idle:
+ goto unimplemented;
+#endif
+#ifdef TARGET_NR_syscall
+ case TARGET_NR_syscall:
+ ret = do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5,
+ arg6, arg7, arg8, 0);
+ break;
+#endif
+ case TARGET_NR_wait4:
+ {
+ int status;
+ abi_long status_ptr = arg2;
+ struct rusage rusage, *rusage_ptr;
+ abi_ulong target_rusage = arg4;
+ abi_long rusage_err;
+ if (target_rusage)
+ rusage_ptr = &rusage;
+ else
+ rusage_ptr = NULL;
+ ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
+ if (!is_error(ret)) {
+ if (status_ptr && ret) {
+ status = host_to_target_waitstatus(status);
+ if (put_user_s32(status, status_ptr))
+ goto efault;
+ }
+ if (target_rusage) {
+ rusage_err = host_to_target_rusage(target_rusage, &rusage);
+ if (rusage_err) {
+ ret = rusage_err;
+ }
+ }
+ }
+ }
+ break;
+#ifdef TARGET_NR_swapoff
+ case TARGET_NR_swapoff:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(swapoff(p));
+ unlock_user(p, arg1, 0);
+ break;
+#endif
+ case TARGET_NR_sysinfo:
+ {
+ struct target_sysinfo *target_value;
+ struct sysinfo value;
+ ret = get_errno(sysinfo(&value));
+ if (!is_error(ret) && arg1)
+ {
+ if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
+ goto efault;
+ __put_user(value.uptime, &target_value->uptime);
+ __put_user(value.loads[0], &target_value->loads[0]);
+ __put_user(value.loads[1], &target_value->loads[1]);
+ __put_user(value.loads[2], &target_value->loads[2]);
+ __put_user(value.totalram, &target_value->totalram);
+ __put_user(value.freeram, &target_value->freeram);
+ __put_user(value.sharedram, &target_value->sharedram);
+ __put_user(value.bufferram, &target_value->bufferram);
+ __put_user(value.totalswap, &target_value->totalswap);
+ __put_user(value.freeswap, &target_value->freeswap);
+ __put_user(value.procs, &target_value->procs);
+ __put_user(value.totalhigh, &target_value->totalhigh);
+ __put_user(value.freehigh, &target_value->freehigh);
+ __put_user(value.mem_unit, &target_value->mem_unit);
+ unlock_user_struct(target_value, arg1, 1);
+ }
+ }
+ break;
+#ifdef TARGET_NR_ipc
+ case TARGET_NR_ipc:
+ ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
+ break;
+#endif
+#ifdef TARGET_NR_semget
+ case TARGET_NR_semget:
+ ret = get_errno(semget(arg1, arg2, arg3));
+ break;
+#endif
+#ifdef TARGET_NR_semop
+ case TARGET_NR_semop:
+ ret = do_semop(arg1, arg2, arg3);
+ break;
+#endif
+#ifdef TARGET_NR_semctl
+ case TARGET_NR_semctl:
+ ret = do_semctl(arg1, arg2, arg3, (union target_semun)(abi_ulong)arg4);
+ break;
+#endif
+#ifdef TARGET_NR_msgctl
+ case TARGET_NR_msgctl:
+ ret = do_msgctl(arg1, arg2, arg3);
+ break;
+#endif
+#ifdef TARGET_NR_msgget
+ case TARGET_NR_msgget:
+ ret = get_errno(msgget(arg1, arg2));
+ break;
+#endif
+#ifdef TARGET_NR_msgrcv
+ case TARGET_NR_msgrcv:
+ ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5);
+ break;
+#endif
+#ifdef TARGET_NR_msgsnd
+ case TARGET_NR_msgsnd:
+ ret = do_msgsnd(arg1, arg2, arg3, arg4);
+ break;
+#endif
+#ifdef TARGET_NR_shmget
+ case TARGET_NR_shmget:
+ ret = get_errno(shmget(arg1, arg2, arg3));
+ break;
+#endif
+#ifdef TARGET_NR_shmctl
+ case TARGET_NR_shmctl:
+ ret = do_shmctl(arg1, arg2, arg3);
+ break;
+#endif
+#ifdef TARGET_NR_shmat
+ case TARGET_NR_shmat:
+ ret = do_shmat(arg1, arg2, arg3);
+ break;
+#endif
+#ifdef TARGET_NR_shmdt
+ case TARGET_NR_shmdt:
+ ret = do_shmdt(arg1);
+ break;
+#endif
+ case TARGET_NR_fsync:
+ ret = get_errno(fsync(arg1));
+ break;
+ case TARGET_NR_clone:
+ /* Linux manages to have three different orderings for its
+ * arguments to clone(); the BACKWARDS and BACKWARDS2 defines
+ * match the kernel's CONFIG_CLONE_* settings.
+ * Microblaze is further special in that it uses a sixth
+ * implicit argument to clone for the TLS pointer.
+ */
+#if defined(TARGET_MICROBLAZE)
+ ret = get_errno(do_fork(cpu_env, arg1, arg2, arg4, arg6, arg5));
+#elif defined(TARGET_CLONE_BACKWARDS)
+ ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
+#elif defined(TARGET_CLONE_BACKWARDS2)
+ ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4));
+#else
+ ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
+#endif
+ break;
+#ifdef __NR_exit_group
+ /* new thread calls */
+ case TARGET_NR_exit_group:
+#ifdef TARGET_GPROF
+ _mcleanup();
+#endif
+ gdb_exit(cpu_env, arg1);
+ ret = get_errno(exit_group(arg1));
+ break;
+#endif
+ case TARGET_NR_setdomainname:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(setdomainname(p, arg2));
+ unlock_user(p, arg1, 0);
+ break;
+ case TARGET_NR_uname:
+ /* no need to transcode because we use the linux syscall */
+ {
+ struct new_utsname * buf;
+
+ if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
+ goto efault;
+ ret = get_errno(sys_uname(buf));
+ if (!is_error(ret)) {
+ /* Overrite the native machine name with whatever is being
+ emulated. */
+ strcpy (buf->machine, cpu_to_uname_machine(cpu_env));
+ /* Allow the user to override the reported release. */
+ if (qemu_uname_release && *qemu_uname_release)
+ strcpy (buf->release, qemu_uname_release);
+ }
+ unlock_user_struct(buf, arg1, 1);
+ }
+ break;
+#ifdef TARGET_I386
+ case TARGET_NR_modify_ldt:
+ ret = do_modify_ldt(cpu_env, arg1, arg2, arg3);
+ break;
+#if !defined(TARGET_X86_64)
+ case TARGET_NR_vm86old:
+ goto unimplemented;
+ case TARGET_NR_vm86:
+ ret = do_vm86(cpu_env, arg1, arg2);
+ break;
+#endif
+#endif
+ case TARGET_NR_adjtimex:
+ goto unimplemented;
+#ifdef TARGET_NR_create_module
+ case TARGET_NR_create_module:
+#endif
+ case TARGET_NR_init_module:
+ case TARGET_NR_delete_module:
+#ifdef TARGET_NR_get_kernel_syms
+ case TARGET_NR_get_kernel_syms:
+#endif
+ goto unimplemented;
+ case TARGET_NR_quotactl:
+ goto unimplemented;
+ case TARGET_NR_getpgid:
+ ret = get_errno(getpgid(arg1));
+ break;
+ case TARGET_NR_fchdir:
+ ret = get_errno(fchdir(arg1));
+ break;
+#ifdef TARGET_NR_bdflush /* not on x86_64 */
+ case TARGET_NR_bdflush:
+ goto unimplemented;
+#endif
+#ifdef TARGET_NR_sysfs
+ case TARGET_NR_sysfs:
+ goto unimplemented;
+#endif
+ case TARGET_NR_personality:
+ ret = get_errno(personality(arg1));
+ break;
+#ifdef TARGET_NR_afs_syscall
+ case TARGET_NR_afs_syscall:
+ goto unimplemented;
+#endif
+#ifdef TARGET_NR__llseek /* Not on alpha */
+ case TARGET_NR__llseek:
+ {
+ int64_t res;
+#if !defined(__NR_llseek)
+ res = lseek(arg1, ((uint64_t)arg2 << 32) | arg3, arg5);
+ if (res == -1) {
+ ret = get_errno(res);
+ } else {
+ ret = 0;
+ }
+#else
+ ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
+#endif
+ if ((ret == 0) && put_user_s64(res, arg4)) {
+ goto efault;
+ }
+ }
+ break;
+#endif
+ case TARGET_NR_getdents:
+#ifdef __NR_getdents
+#if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
+ {
+ struct target_dirent *target_dirp;
+ struct linux_dirent *dirp;
+ abi_long count = arg3;
+
+ dirp = malloc(count);
+ if (!dirp) {
+ ret = -TARGET_ENOMEM;
+ goto fail;
+ }
+
+ ret = get_errno(sys_getdents(arg1, dirp, count));
+ if (!is_error(ret)) {
+ struct linux_dirent *de;
+ struct target_dirent *tde;
+ int len = ret;
+ int reclen, treclen;
+ int count1, tnamelen;
+
+ count1 = 0;
+ de = dirp;
+ if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
+ goto efault;
+ tde = target_dirp;
+ while (len > 0) {
+ reclen = de->d_reclen;
+ tnamelen = reclen - offsetof(struct linux_dirent, d_name);
+ assert(tnamelen >= 0);
+ treclen = tnamelen + offsetof(struct target_dirent, d_name);
+ assert(count1 + treclen <= count);
+ tde->d_reclen = tswap16(treclen);
+ tde->d_ino = tswapal(de->d_ino);
+ tde->d_off = tswapal(de->d_off);
+ memcpy(tde->d_name, de->d_name, tnamelen);
+ de = (struct linux_dirent *)((char *)de + reclen);
+ len -= reclen;
+ tde = (struct target_dirent *)((char *)tde + treclen);
+ count1 += treclen;
+ }
+ ret = count1;
+ unlock_user(target_dirp, arg2, ret);
+ }
+ free(dirp);
+ }
+#else
+ {
+ struct linux_dirent *dirp;
+ abi_long count = arg3;
+
+ if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
+ goto efault;
+ ret = get_errno(sys_getdents(arg1, dirp, count));
+ if (!is_error(ret)) {
+ struct linux_dirent *de;
+ int len = ret;
+ int reclen;
+ de = dirp;
+ while (len > 0) {
+ reclen = de->d_reclen;
+ if (reclen > len)
+ break;
+ de->d_reclen = tswap16(reclen);
+ tswapls(&de->d_ino);
+ tswapls(&de->d_off);
+ de = (struct linux_dirent *)((char *)de + reclen);
+ len -= reclen;
+ }
+ }
+ unlock_user(dirp, arg2, ret);
+ }
+#endif
+#else
+ /* Implement getdents in terms of getdents64 */
+ {
+ struct linux_dirent64 *dirp;
+ abi_long count = arg3;
+
+ dirp = lock_user(VERIFY_WRITE, arg2, count, 0);
+ if (!dirp) {
+ goto efault;
+ }
+ ret = get_errno(sys_getdents64(arg1, dirp, count));
+ if (!is_error(ret)) {
+ /* Convert the dirent64 structs to target dirent. We do this
+ * in-place, since we can guarantee that a target_dirent is no
+ * larger than a dirent64; however this means we have to be
+ * careful to read everything before writing in the new format.
+ */
+ struct linux_dirent64 *de;
+ struct target_dirent *tde;
+ int len = ret;
+ int tlen = 0;
+
+ de = dirp;
+ tde = (struct target_dirent *)dirp;
+ while (len > 0) {
+ int namelen, treclen;
+ int reclen = de->d_reclen;
+ uint64_t ino = de->d_ino;
+ int64_t off = de->d_off;
+ uint8_t type = de->d_type;
+
+ namelen = strlen(de->d_name);
+ treclen = offsetof(struct target_dirent, d_name)
+ + namelen + 2;
+ treclen = QEMU_ALIGN_UP(treclen, sizeof(abi_long));
+
+ memmove(tde->d_name, de->d_name, namelen + 1);
+ tde->d_ino = tswapal(ino);
+ tde->d_off = tswapal(off);
+ tde->d_reclen = tswap16(treclen);
+ /* The target_dirent type is in what was formerly a padding
+ * byte at the end of the structure:
+ */
+ *(((char *)tde) + treclen - 1) = type;
+
+ de = (struct linux_dirent64 *)((char *)de + reclen);
+ tde = (struct target_dirent *)((char *)tde + treclen);
+ len -= reclen;
+ tlen += treclen;
+ }
+ ret = tlen;
+ }
+ unlock_user(dirp, arg2, ret);
+ }
+#endif
+ break;
+#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
+ case TARGET_NR_getdents64:
+ {
+ struct linux_dirent64 *dirp;
+ abi_long count = arg3;
+ if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
+ goto efault;
+ ret = get_errno(sys_getdents64(arg1, dirp, count));
+ if (!is_error(ret)) {
+ struct linux_dirent64 *de;
+ int len = ret;
+ int reclen;
+ de = dirp;
+ while (len > 0) {
+ reclen = de->d_reclen;
+ if (reclen > len)
+ break;
+ de->d_reclen = tswap16(reclen);
+ tswap64s((uint64_t *)&de->d_ino);
+ tswap64s((uint64_t *)&de->d_off);
+ de = (struct linux_dirent64 *)((char *)de + reclen);
+ len -= reclen;
+ }
+ }
+ unlock_user(dirp, arg2, ret);
+ }
+ break;
+#endif /* TARGET_NR_getdents64 */
+#if defined(TARGET_NR__newselect)
+ case TARGET_NR__newselect:
+ ret = do_select(arg1, arg2, arg3, arg4, arg5);
+ break;
+#endif
+#if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll)
+# ifdef TARGET_NR_poll
+ case TARGET_NR_poll:
+# endif
+# ifdef TARGET_NR_ppoll
+ case TARGET_NR_ppoll:
+# endif
+ {
+ struct target_pollfd *target_pfd;
+ unsigned int nfds = arg2;
+ int timeout = arg3;
+ struct pollfd *pfd;
+ unsigned int i;
+
+ target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1);
+ if (!target_pfd)
+ goto efault;
+
+ pfd = alloca(sizeof(struct pollfd) * nfds);
+ for(i = 0; i < nfds; i++) {
+ pfd[i].fd = tswap32(target_pfd[i].fd);
+ pfd[i].events = tswap16(target_pfd[i].events);
+ }
+
+# ifdef TARGET_NR_ppoll
+ if (num == TARGET_NR_ppoll) {
+ struct timespec _timeout_ts, *timeout_ts = &_timeout_ts;
+ target_sigset_t *target_set;
+ sigset_t _set, *set = &_set;
+
+ if (arg3) {
+ if (target_to_host_timespec(timeout_ts, arg3)) {
+ unlock_user(target_pfd, arg1, 0);
+ goto efault;
+ }
+ } else {
+ timeout_ts = NULL;
+ }
+
+ if (arg4) {
+ target_set = lock_user(VERIFY_READ, arg4, sizeof(target_sigset_t), 1);
+ if (!target_set) {
+ unlock_user(target_pfd, arg1, 0);
+ goto efault;
+ }
+ target_to_host_sigset(set, target_set);
+ } else {
+ set = NULL;
+ }
+
+ ret = get_errno(sys_ppoll(pfd, nfds, timeout_ts, set, _NSIG/8));
+
+ if (!is_error(ret) && arg3) {
+ host_to_target_timespec(arg3, timeout_ts);
+ }
+ if (arg4) {
+ unlock_user(target_set, arg4, 0);
+ }
+ } else
+# endif
+ ret = get_errno(poll(pfd, nfds, timeout));
+
+ if (!is_error(ret)) {
+ for(i = 0; i < nfds; i++) {
+ target_pfd[i].revents = tswap16(pfd[i].revents);
+ }
+ }
+ unlock_user(target_pfd, arg1, sizeof(struct target_pollfd) * nfds);
+ }
+ break;
+#endif
+ case TARGET_NR_flock:
+ /* NOTE: the flock constant seems to be the same for every
+ Linux platform */
+ ret = get_errno(flock(arg1, arg2));
+ break;
+ case TARGET_NR_readv:
+ {
+ struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
+ if (vec != NULL) {
+ ret = get_errno(readv(arg1, vec, arg3));
+ unlock_iovec(vec, arg2, arg3, 1);
+ } else {
+ ret = -host_to_target_errno(errno);
+ }
+ }
+ break;
+ case TARGET_NR_writev:
+ {
+ struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
+ if (vec != NULL) {
+ ret = get_errno(writev(arg1, vec, arg3));
+ unlock_iovec(vec, arg2, arg3, 0);
+ } else {
+ ret = -host_to_target_errno(errno);
+ }
+ }
+ break;
+ case TARGET_NR_getsid:
+ ret = get_errno(getsid(arg1));
+ break;
+#if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
+ case TARGET_NR_fdatasync:
+ ret = get_errno(fdatasync(arg1));
+ break;
+#endif
+ case TARGET_NR__sysctl:
+ /* We don't implement this, but ENOTDIR is always a safe
+ return value. */
+ ret = -TARGET_ENOTDIR;
+ break;
+ case TARGET_NR_sched_getaffinity:
+ {
+ unsigned int mask_size;
+ unsigned long *mask;
+
+ /*
+ * sched_getaffinity needs multiples of ulong, so need to take
+ * care of mismatches between target ulong and host ulong sizes.
+ */
+ if (arg2 & (sizeof(abi_ulong) - 1)) {
+ ret = -TARGET_EINVAL;
+ break;
+ }
+ mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
+
+ mask = alloca(mask_size);
+ ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask));
+
+ if (!is_error(ret)) {
+ if (ret > arg2) {
+ /* More data returned than the caller's buffer will fit.
+ * This only happens if sizeof(abi_long) < sizeof(long)
+ * and the caller passed us a buffer holding an odd number
+ * of abi_longs. If the host kernel is actually using the
+ * extra 4 bytes then fail EINVAL; otherwise we can just
+ * ignore them and only copy the interesting part.
+ */
+ int numcpus = sysconf(_SC_NPROCESSORS_CONF);
+ if (numcpus > arg2 * 8) {
+ ret = -TARGET_EINVAL;
+ break;
+ }
+ ret = arg2;
+ }
+
+ if (copy_to_user(arg3, mask, ret)) {
+ goto efault;
+ }
+ }
+ }
+ break;
+ case TARGET_NR_sched_setaffinity:
+ {
+ unsigned int mask_size;
+ unsigned long *mask;
+
+ /*
+ * sched_setaffinity needs multiples of ulong, so need to take
+ * care of mismatches between target ulong and host ulong sizes.
+ */
+ if (arg2 & (sizeof(abi_ulong) - 1)) {
+ ret = -TARGET_EINVAL;
+ break;
+ }
+ mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
+
+ mask = alloca(mask_size);
+ if (!lock_user_struct(VERIFY_READ, p, arg3, 1)) {
+ goto efault;
+ }
+ memcpy(mask, p, arg2);
+ unlock_user_struct(p, arg2, 0);
+
+ ret = get_errno(sys_sched_setaffinity(arg1, mask_size, mask));
+ }
+ break;
+ case TARGET_NR_sched_setparam:
+ {
+ struct sched_param *target_schp;
+ struct sched_param schp;
+
+ if (arg2 == 0) {
+ return -TARGET_EINVAL;
+ }
+ if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
+ goto efault;
+ schp.sched_priority = tswap32(target_schp->sched_priority);
+ unlock_user_struct(target_schp, arg2, 0);
+ ret = get_errno(sched_setparam(arg1, &schp));
+ }
+ break;
+ case TARGET_NR_sched_getparam:
+ {
+ struct sched_param *target_schp;
+ struct sched_param schp;
+
+ if (arg2 == 0) {
+ return -TARGET_EINVAL;
+ }
+ ret = get_errno(sched_getparam(arg1, &schp));
+ if (!is_error(ret)) {
+ if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
+ goto efault;
+ target_schp->sched_priority = tswap32(schp.sched_priority);
+ unlock_user_struct(target_schp, arg2, 1);
+ }
+ }
+ break;
+ case TARGET_NR_sched_setscheduler:
+ {
+ struct sched_param *target_schp;
+ struct sched_param schp;
+ if (arg3 == 0) {
+ return -TARGET_EINVAL;
+ }
+ if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
+ goto efault;
+ schp.sched_priority = tswap32(target_schp->sched_priority);
+ unlock_user_struct(target_schp, arg3, 0);
+ ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
+ }
+ break;
+ case TARGET_NR_sched_getscheduler:
+ ret = get_errno(sched_getscheduler(arg1));
+ break;
+ case TARGET_NR_sched_yield:
+ ret = get_errno(sched_yield());
+ break;
+ case TARGET_NR_sched_get_priority_max:
+ ret = get_errno(sched_get_priority_max(arg1));
+ break;
+ case TARGET_NR_sched_get_priority_min:
+ ret = get_errno(sched_get_priority_min(arg1));
+ break;
+ case TARGET_NR_sched_rr_get_interval:
+ {
+ struct timespec ts;
+ ret = get_errno(sched_rr_get_interval(arg1, &ts));
+ if (!is_error(ret)) {
+ ret = host_to_target_timespec(arg2, &ts);
+ }
+ }
+ break;
+ case TARGET_NR_nanosleep:
+ {
+ struct timespec req, rem;
+ target_to_host_timespec(&req, arg1);
+ ret = get_errno(nanosleep(&req, &rem));
+ if (is_error(ret) && arg2) {
+ host_to_target_timespec(arg2, &rem);
+ }
+ }
+ break;
+#ifdef TARGET_NR_query_module
+ case TARGET_NR_query_module:
+ goto unimplemented;
+#endif
+#ifdef TARGET_NR_nfsservctl
+ case TARGET_NR_nfsservctl:
+ goto unimplemented;
+#endif
+ case TARGET_NR_prctl:
+ switch (arg1) {
+ case PR_GET_PDEATHSIG:
+ {
+ int deathsig;
+ ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
+ if (!is_error(ret) && arg2
+ && put_user_ual(deathsig, arg2)) {
+ goto efault;
+ }
+ break;
+ }
+#ifdef PR_GET_NAME
+ case PR_GET_NAME:
+ {
+ void *name = lock_user(VERIFY_WRITE, arg2, 16, 1);
+ if (!name) {
+ goto efault;
+ }
+ ret = get_errno(prctl(arg1, (unsigned long)name,
+ arg3, arg4, arg5));
+ unlock_user(name, arg2, 16);
+ break;
+ }
+ case PR_SET_NAME:
+ {
+ void *name = lock_user(VERIFY_READ, arg2, 16, 1);
+ if (!name) {
+ goto efault;
+ }
+ ret = get_errno(prctl(arg1, (unsigned long)name,
+ arg3, arg4, arg5));
+ unlock_user(name, arg2, 0);
+ break;
+ }
+#endif
+ default:
+ /* Most prctl options have no pointer arguments */
+ ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
+ break;
+ }
+ break;
+#ifdef TARGET_NR_arch_prctl
+ case TARGET_NR_arch_prctl:
+#if defined(TARGET_I386) && !defined(TARGET_ABI32)
+ ret = do_arch_prctl(cpu_env, arg1, arg2);
+ break;
+#else
+ goto unimplemented;
+#endif
+#endif
+#ifdef TARGET_NR_pread64
+ case TARGET_NR_pread64:
+ if (regpairs_aligned(cpu_env)) {
+ arg4 = arg5;
+ arg5 = arg6;
+ }
+ if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
+ goto efault;
+ ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
+ unlock_user(p, arg2, ret);
+ break;
+ case TARGET_NR_pwrite64:
+ if (regpairs_aligned(cpu_env)) {
+ arg4 = arg5;
+ arg5 = arg6;
+ }
+ if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
+ goto efault;
+ ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
+ unlock_user(p, arg2, 0);
+ break;
+#endif
+ case TARGET_NR_getcwd:
+ if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
+ goto efault;
+ ret = get_errno(sys_getcwd1(p, arg2));
+ unlock_user(p, arg1, ret);
+ break;
+ case TARGET_NR_capget:
+ case TARGET_NR_capset:
+ {
+ struct target_user_cap_header *target_header;
+ struct target_user_cap_data *target_data = NULL;
+ struct __user_cap_header_struct header;
+ struct __user_cap_data_struct data[2];
+ struct __user_cap_data_struct *dataptr = NULL;
+ int i, target_datalen;
+ int data_items = 1;
+
+ if (!lock_user_struct(VERIFY_WRITE, target_header, arg1, 1)) {
+ goto efault;
+ }
+ header.version = tswap32(target_header->version);
+ header.pid = tswap32(target_header->pid);
+
+ if (header.version != _LINUX_CAPABILITY_VERSION) {
+ /* Version 2 and up takes pointer to two user_data structs */
+ data_items = 2;
+ }
+
+ target_datalen = sizeof(*target_data) * data_items;
+
+ if (arg2) {
+ if (num == TARGET_NR_capget) {
+ target_data = lock_user(VERIFY_WRITE, arg2, target_datalen, 0);
+ } else {
+ target_data = lock_user(VERIFY_READ, arg2, target_datalen, 1);
+ }
+ if (!target_data) {
+ unlock_user_struct(target_header, arg1, 0);
+ goto efault;
+ }
+
+ if (num == TARGET_NR_capset) {
+ for (i = 0; i < data_items; i++) {
+ data[i].effective = tswap32(target_data[i].effective);
+ data[i].permitted = tswap32(target_data[i].permitted);
+ data[i].inheritable = tswap32(target_data[i].inheritable);
+ }
+ }
+
+ dataptr = data;
+ }
+
+ if (num == TARGET_NR_capget) {
+ ret = get_errno(capget(&header, dataptr));
+ } else {
+ ret = get_errno(capset(&header, dataptr));
+ }
+
+ /* The kernel always updates version for both capget and capset */
+ target_header->version = tswap32(header.version);
+ unlock_user_struct(target_header, arg1, 1);
+
+ if (arg2) {
+ if (num == TARGET_NR_capget) {
+ for (i = 0; i < data_items; i++) {
+ target_data[i].effective = tswap32(data[i].effective);
+ target_data[i].permitted = tswap32(data[i].permitted);
+ target_data[i].inheritable = tswap32(data[i].inheritable);
+ }
+ unlock_user(target_data, arg2, target_datalen);
+ } else {
+ unlock_user(target_data, arg2, 0);
+ }
+ }
+ break;
+ }
+ case TARGET_NR_sigaltstack:
+#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \
+ defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) || \
+ defined(TARGET_M68K) || defined(TARGET_S390X) || defined(TARGET_OPENRISC)
+ ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUArchState *)cpu_env));
+ break;
+#else
+ goto unimplemented;
+#endif
+
+#ifdef CONFIG_SENDFILE
+ case TARGET_NR_sendfile:
+ {
+ off_t *offp = NULL;
+ off_t off;
+ if (arg3) {
+ ret = get_user_sal(off, arg3);
+ if (is_error(ret)) {
+ break;
+ }
+ offp = &off;
+ }
+ ret = get_errno(sendfile(arg1, arg2, offp, arg4));
+ if (!is_error(ret) && arg3) {
+ abi_long ret2 = put_user_sal(off, arg3);
+ if (is_error(ret2)) {
+ ret = ret2;
+ }
+ }
+ break;
+ }
+#ifdef TARGET_NR_sendfile64
+ case TARGET_NR_sendfile64:
+ {
+ off_t *offp = NULL;
+ off_t off;
+ if (arg3) {
+ ret = get_user_s64(off, arg3);
+ if (is_error(ret)) {
+ break;
+ }
+ offp = &off;
+ }
+ ret = get_errno(sendfile(arg1, arg2, offp, arg4));
+ if (!is_error(ret) && arg3) {
+ abi_long ret2 = put_user_s64(off, arg3);
+ if (is_error(ret2)) {
+ ret = ret2;
+ }
+ }
+ break;
+ }
+#endif
+#else
+ case TARGET_NR_sendfile:
+#ifdef TARGET_NR_sendfile64
+ case TARGET_NR_sendfile64:
+#endif
+ goto unimplemented;
+#endif
+
+#ifdef TARGET_NR_getpmsg
+ case TARGET_NR_getpmsg:
+ goto unimplemented;
+#endif
+#ifdef TARGET_NR_putpmsg
+ case TARGET_NR_putpmsg:
+ goto unimplemented;
+#endif
+#ifdef TARGET_NR_vfork
+ case TARGET_NR_vfork:
+ ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD,
+ 0, 0, 0, 0));
+ break;
+#endif
+#ifdef TARGET_NR_ugetrlimit
+ case TARGET_NR_ugetrlimit:
+ {
+ struct rlimit rlim;
+ int resource = target_to_host_resource(arg1);
+ ret = get_errno(getrlimit(resource, &rlim));
+ if (!is_error(ret)) {
+ struct target_rlimit *target_rlim;
+ if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
+ goto efault;
+ target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
+ target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
+ unlock_user_struct(target_rlim, arg2, 1);
+ }
+ break;
+ }
+#endif
+#ifdef TARGET_NR_truncate64
+ case TARGET_NR_truncate64:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
+ unlock_user(p, arg1, 0);
+ break;
+#endif
+#ifdef TARGET_NR_ftruncate64
+ case TARGET_NR_ftruncate64:
+ ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
+ break;
+#endif
+#ifdef TARGET_NR_stat64
+ case TARGET_NR_stat64:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(stat(path(p), &st));
+ unlock_user(p, arg1, 0);
+ if (!is_error(ret))
+ ret = host_to_target_stat64(cpu_env, arg2, &st);
+ break;
+#endif
+#ifdef TARGET_NR_lstat64
+ case TARGET_NR_lstat64:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(lstat(path(p), &st));
+ unlock_user(p, arg1, 0);
+ if (!is_error(ret))
+ ret = host_to_target_stat64(cpu_env, arg2, &st);
+ break;
+#endif
+#ifdef TARGET_NR_fstat64
+ case TARGET_NR_fstat64:
+ ret = get_errno(fstat(arg1, &st));
+ if (!is_error(ret))
+ ret = host_to_target_stat64(cpu_env, arg2, &st);
+ break;
+#endif
+#if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat))
+#ifdef TARGET_NR_fstatat64
+ case TARGET_NR_fstatat64:
+#endif
+#ifdef TARGET_NR_newfstatat
+ case TARGET_NR_newfstatat:
+#endif
+ if (!(p = lock_user_string(arg2)))
+ goto efault;
+ ret = get_errno(fstatat(arg1, path(p), &st, arg4));
+ if (!is_error(ret))
+ ret = host_to_target_stat64(cpu_env, arg3, &st);
+ break;
+#endif
+ case TARGET_NR_lchown:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
+ unlock_user(p, arg1, 0);
+ break;
+#ifdef TARGET_NR_getuid
+ case TARGET_NR_getuid:
+ ret = get_errno(high2lowuid(getuid()));
+ break;
+#endif
+#ifdef TARGET_NR_getgid
+ case TARGET_NR_getgid:
+ ret = get_errno(high2lowgid(getgid()));
+ break;
+#endif
+#ifdef TARGET_NR_geteuid
+ case TARGET_NR_geteuid:
+ ret = get_errno(high2lowuid(geteuid()));
+ break;
+#endif
+#ifdef TARGET_NR_getegid
+ case TARGET_NR_getegid:
+ ret = get_errno(high2lowgid(getegid()));
+ break;
+#endif
+ case TARGET_NR_setreuid:
+ ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
+ break;
+ case TARGET_NR_setregid:
+ ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
+ break;
+ case TARGET_NR_getgroups:
+ {
+ int gidsetsize = arg1;
+ target_id *target_grouplist;
+ gid_t *grouplist;
+ int i;
+
+ grouplist = alloca(gidsetsize * sizeof(gid_t));
+ ret = get_errno(getgroups(gidsetsize, grouplist));
+ if (gidsetsize == 0)
+ break;
+ if (!is_error(ret)) {
+ target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * sizeof(target_id), 0);
+ if (!target_grouplist)
+ goto efault;
+ for(i = 0;i < ret; i++)
+ target_grouplist[i] = tswapid(high2lowgid(grouplist[i]));
+ unlock_user(target_grouplist, arg2, gidsetsize * sizeof(target_id));
+ }
+ }
+ break;
+ case TARGET_NR_setgroups:
+ {
+ int gidsetsize = arg1;
+ target_id *target_grouplist;
+ gid_t *grouplist = NULL;
+ int i;
+ if (gidsetsize) {
+ grouplist = alloca(gidsetsize * sizeof(gid_t));
+ target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * sizeof(target_id), 1);
+ if (!target_grouplist) {
+ ret = -TARGET_EFAULT;
+ goto fail;
+ }
+ for (i = 0; i < gidsetsize; i++) {
+ grouplist[i] = low2highgid(tswapid(target_grouplist[i]));
+ }
+ unlock_user(target_grouplist, arg2, 0);
+ }
+ ret = get_errno(setgroups(gidsetsize, grouplist));
+ }
+ break;
+ case TARGET_NR_fchown:
+ ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
+ break;
+#if defined(TARGET_NR_fchownat)
+ case TARGET_NR_fchownat:
+ if (!(p = lock_user_string(arg2)))
+ goto efault;
+ ret = get_errno(fchownat(arg1, p, low2highuid(arg3),
+ low2highgid(arg4), arg5));
+ unlock_user(p, arg2, 0);
+ break;
+#endif
+#ifdef TARGET_NR_setresuid
+ case TARGET_NR_setresuid:
+ ret = get_errno(setresuid(low2highuid(arg1),
+ low2highuid(arg2),
+ low2highuid(arg3)));
+ break;
+#endif
+#ifdef TARGET_NR_getresuid
+ case TARGET_NR_getresuid:
+ {
+ uid_t ruid, euid, suid;
+ ret = get_errno(getresuid(&ruid, &euid, &suid));
+ if (!is_error(ret)) {
+ if (put_user_id(high2lowuid(ruid), arg1)
+ || put_user_id(high2lowuid(euid), arg2)
+ || put_user_id(high2lowuid(suid), arg3))
+ goto efault;
+ }
+ }
+ break;
+#endif
+#ifdef TARGET_NR_getresgid
+ case TARGET_NR_setresgid:
+ ret = get_errno(setresgid(low2highgid(arg1),
+ low2highgid(arg2),
+ low2highgid(arg3)));
+ break;
+#endif
+#ifdef TARGET_NR_getresgid
+ case TARGET_NR_getresgid:
+ {
+ gid_t rgid, egid, sgid;
+ ret = get_errno(getresgid(&rgid, &egid, &sgid));
+ if (!is_error(ret)) {
+ if (put_user_id(high2lowgid(rgid), arg1)
+ || put_user_id(high2lowgid(egid), arg2)
+ || put_user_id(high2lowgid(sgid), arg3))
+ goto efault;
+ }
+ }
+ break;
+#endif
+ case TARGET_NR_chown:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
+ unlock_user(p, arg1, 0);
+ break;
+ case TARGET_NR_setuid:
+ ret = get_errno(setuid(low2highuid(arg1)));
+ break;
+ case TARGET_NR_setgid:
+ ret = get_errno(setgid(low2highgid(arg1)));
+ break;
+ case TARGET_NR_setfsuid:
+ ret = get_errno(setfsuid(arg1));
+ break;
+ case TARGET_NR_setfsgid:
+ ret = get_errno(setfsgid(arg1));
+ break;
+
+#ifdef TARGET_NR_lchown32
+ case TARGET_NR_lchown32:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(lchown(p, arg2, arg3));
+ unlock_user(p, arg1, 0);
+ break;
+#endif
+#ifdef TARGET_NR_getuid32
+ case TARGET_NR_getuid32:
+ ret = get_errno(getuid());
+ break;
+#endif
+
+#if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
+ /* Alpha specific */
+ case TARGET_NR_getxuid:
+ {
+ uid_t euid;
+ euid=geteuid();
+ ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
+ }
+ ret = get_errno(getuid());
+ break;
+#endif
+#if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
+ /* Alpha specific */
+ case TARGET_NR_getxgid:
+ {
+ uid_t egid;
+ egid=getegid();
+ ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
+ }
+ ret = get_errno(getgid());
+ break;
+#endif
+#if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)
+ /* Alpha specific */
+ case TARGET_NR_osf_getsysinfo:
+ ret = -TARGET_EOPNOTSUPP;
+ switch (arg1) {
+ case TARGET_GSI_IEEE_FP_CONTROL:
+ {
+ uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env);
+
+ /* Copied from linux ieee_fpcr_to_swcr. */
+ swcr = (fpcr >> 35) & SWCR_STATUS_MASK;
+ swcr |= (fpcr >> 36) & SWCR_MAP_DMZ;
+ swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV
+ | SWCR_TRAP_ENABLE_DZE
+ | SWCR_TRAP_ENABLE_OVF);
+ swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF
+ | SWCR_TRAP_ENABLE_INE);
+ swcr |= (fpcr >> 47) & SWCR_MAP_UMZ;
+ swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO;
+
+ if (put_user_u64 (swcr, arg2))
+ goto efault;
+ ret = 0;
+ }
+ break;
+
+ /* case GSI_IEEE_STATE_AT_SIGNAL:
+ -- Not implemented in linux kernel.
+ case GSI_UACPROC:
+ -- Retrieves current unaligned access state; not much used.
+ case GSI_PROC_TYPE:
+ -- Retrieves implver information; surely not used.
+ case GSI_GET_HWRPB:
+ -- Grabs a copy of the HWRPB; surely not used.
+ */
+ }
+ break;
+#endif
+#if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)
+ /* Alpha specific */
+ case TARGET_NR_osf_setsysinfo:
+ ret = -TARGET_EOPNOTSUPP;
+ switch (arg1) {
+ case TARGET_SSI_IEEE_FP_CONTROL:
+ {
+ uint64_t swcr, fpcr, orig_fpcr;
+
+ if (get_user_u64 (swcr, arg2)) {
+ goto efault;
+ }
+ orig_fpcr = cpu_alpha_load_fpcr(cpu_env);
+ fpcr = orig_fpcr & FPCR_DYN_MASK;
+
+ /* Copied from linux ieee_swcr_to_fpcr. */
+ fpcr |= (swcr & SWCR_STATUS_MASK) << 35;
+ fpcr |= (swcr & SWCR_MAP_DMZ) << 36;
+ fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV
+ | SWCR_TRAP_ENABLE_DZE
+ | SWCR_TRAP_ENABLE_OVF)) << 48;
+ fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF
+ | SWCR_TRAP_ENABLE_INE)) << 57;
+ fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0);
+ fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41;
+
+ cpu_alpha_store_fpcr(cpu_env, fpcr);
+ ret = 0;
+ }
+ break;
+
+ case TARGET_SSI_IEEE_RAISE_EXCEPTION:
+ {
+ uint64_t exc, fpcr, orig_fpcr;
+ int si_code;
+
+ if (get_user_u64(exc, arg2)) {
+ goto efault;
+ }
+
+ orig_fpcr = cpu_alpha_load_fpcr(cpu_env);
+
+ /* We only add to the exception status here. */
+ fpcr = orig_fpcr | ((exc & SWCR_STATUS_MASK) << 35);
+
+ cpu_alpha_store_fpcr(cpu_env, fpcr);
+ ret = 0;
+
+ /* Old exceptions are not signaled. */
+ fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK);
+
+ /* If any exceptions set by this call,
+ and are unmasked, send a signal. */
+ si_code = 0;
+ if ((fpcr & (FPCR_INE | FPCR_INED)) == FPCR_INE) {
+ si_code = TARGET_FPE_FLTRES;
+ }
+ if ((fpcr & (FPCR_UNF | FPCR_UNFD)) == FPCR_UNF) {
+ si_code = TARGET_FPE_FLTUND;
+ }
+ if ((fpcr & (FPCR_OVF | FPCR_OVFD)) == FPCR_OVF) {
+ si_code = TARGET_FPE_FLTOVF;
+ }
+ if ((fpcr & (FPCR_DZE | FPCR_DZED)) == FPCR_DZE) {
+ si_code = TARGET_FPE_FLTDIV;
+ }
+ if ((fpcr & (FPCR_INV | FPCR_INVD)) == FPCR_INV) {
+ si_code = TARGET_FPE_FLTINV;
+ }
+ if (si_code != 0) {
+ target_siginfo_t info;
+ info.si_signo = SIGFPE;
+ info.si_errno = 0;
+ info.si_code = si_code;
+ info._sifields._sigfault._addr
+ = ((CPUArchState *)cpu_env)->pc;
+ queue_signal((CPUArchState *)cpu_env, info.si_signo, &info);
+ }
+ }
+ break;
+
+ /* case SSI_NVPAIRS:
+ -- Used with SSIN_UACPROC to enable unaligned accesses.
+ case SSI_IEEE_STATE_AT_SIGNAL:
+ case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
+ -- Not implemented in linux kernel
+ */
+ }
+ break;
+#endif
+#ifdef TARGET_NR_osf_sigprocmask
+ /* Alpha specific. */
+ case TARGET_NR_osf_sigprocmask:
+ {
+ abi_ulong mask;
+ int how;
+ sigset_t set, oldset;
+
+ switch(arg1) {
+ case TARGET_SIG_BLOCK:
+ how = SIG_BLOCK;
+ break;
+ case TARGET_SIG_UNBLOCK:
+ how = SIG_UNBLOCK;
+ break;
+ case TARGET_SIG_SETMASK:
+ how = SIG_SETMASK;
+ break;
+ default:
+ ret = -TARGET_EINVAL;
+ goto fail;
+ }
+ mask = arg2;
+ target_to_host_old_sigset(&set, &mask);
+ do_sigprocmask(how, &set, &oldset);
+ host_to_target_old_sigset(&mask, &oldset);
+ ret = mask;
+ }
+ break;
+#endif
+
+#ifdef TARGET_NR_getgid32
+ case TARGET_NR_getgid32:
+ ret = get_errno(getgid());
+ break;
+#endif
+#ifdef TARGET_NR_geteuid32
+ case TARGET_NR_geteuid32:
+ ret = get_errno(geteuid());
+ break;
+#endif
+#ifdef TARGET_NR_getegid32
+ case TARGET_NR_getegid32:
+ ret = get_errno(getegid());
+ break;
+#endif
+#ifdef TARGET_NR_setreuid32
+ case TARGET_NR_setreuid32:
+ ret = get_errno(setreuid(arg1, arg2));
+ break;
+#endif
+#ifdef TARGET_NR_setregid32
+ case TARGET_NR_setregid32:
+ ret = get_errno(setregid(arg1, arg2));
+ break;
+#endif
+#ifdef TARGET_NR_getgroups32
+ case TARGET_NR_getgroups32:
+ {
+ int gidsetsize = arg1;
+ uint32_t *target_grouplist;
+ gid_t *grouplist;
+ int i;
+
+ grouplist = alloca(gidsetsize * sizeof(gid_t));
+ ret = get_errno(getgroups(gidsetsize, grouplist));
+ if (gidsetsize == 0)
+ break;
+ if (!is_error(ret)) {
+ target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
+ if (!target_grouplist) {
+ ret = -TARGET_EFAULT;
+ goto fail;
+ }
+ for(i = 0;i < ret; i++)
+ target_grouplist[i] = tswap32(grouplist[i]);
+ unlock_user(target_grouplist, arg2, gidsetsize * 4);
+ }
+ }
+ break;
+#endif
+#ifdef TARGET_NR_setgroups32
+ case TARGET_NR_setgroups32:
+ {
+ int gidsetsize = arg1;
+ uint32_t *target_grouplist;
+ gid_t *grouplist;
+ int i;
+
+ grouplist = alloca(gidsetsize * sizeof(gid_t));
+ target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
+ if (!target_grouplist) {
+ ret = -TARGET_EFAULT;
+ goto fail;
+ }
+ for(i = 0;i < gidsetsize; i++)
+ grouplist[i] = tswap32(target_grouplist[i]);
+ unlock_user(target_grouplist, arg2, 0);
+ ret = get_errno(setgroups(gidsetsize, grouplist));
+ }
+ break;
+#endif
+#ifdef TARGET_NR_fchown32
+ case TARGET_NR_fchown32:
+ ret = get_errno(fchown(arg1, arg2, arg3));
+ break;
+#endif
+#ifdef TARGET_NR_setresuid32
+ case TARGET_NR_setresuid32:
+ ret = get_errno(setresuid(arg1, arg2, arg3));
+ break;
+#endif
+#ifdef TARGET_NR_getresuid32
+ case TARGET_NR_getresuid32:
+ {
+ uid_t ruid, euid, suid;
+ ret = get_errno(getresuid(&ruid, &euid, &suid));
+ if (!is_error(ret)) {
+ if (put_user_u32(ruid, arg1)
+ || put_user_u32(euid, arg2)
+ || put_user_u32(suid, arg3))
+ goto efault;
+ }
+ }
+ break;
+#endif
+#ifdef TARGET_NR_setresgid32
+ case TARGET_NR_setresgid32:
+ ret = get_errno(setresgid(arg1, arg2, arg3));
+ break;
+#endif
+#ifdef TARGET_NR_getresgid32
+ case TARGET_NR_getresgid32:
+ {
+ gid_t rgid, egid, sgid;
+ ret = get_errno(getresgid(&rgid, &egid, &sgid));
+ if (!is_error(ret)) {
+ if (put_user_u32(rgid, arg1)
+ || put_user_u32(egid, arg2)
+ || put_user_u32(sgid, arg3))
+ goto efault;
+ }
+ }
+ break;
+#endif
+#ifdef TARGET_NR_chown32
+ case TARGET_NR_chown32:
+ if (!(p = lock_user_string(arg1)))
+ goto efault;
+ ret = get_errno(chown(p, arg2, arg3));
+ unlock_user(p, arg1, 0);
+ break;
+#endif
+#ifdef TARGET_NR_setuid32
+ case TARGET_NR_setuid32:
+ ret = get_errno(setuid(arg1));
+ break;
+#endif
+#ifdef TARGET_NR_setgid32
+ case TARGET_NR_setgid32:
+ ret = get_errno(setgid(arg1));
+ break;
+#endif
+#ifdef TARGET_NR_setfsuid32
+ case TARGET_NR_setfsuid32:
+ ret = get_errno(setfsuid(arg1));
+ break;
+#endif
+#ifdef TARGET_NR_setfsgid32
+ case TARGET_NR_setfsgid32:
+ ret = get_errno(setfsgid(arg1));
+ break;
+#endif
+
+ case TARGET_NR_pivot_root:
+ goto unimplemented;
+#ifdef TARGET_NR_mincore
+ case TARGET_NR_mincore:
+ {
+ void *a;
+ ret = -TARGET_EFAULT;
+ if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0)))
+ goto efault;
+ if (!(p = lock_user_string(arg3)))
+ goto mincore_fail;
+ ret = get_errno(mincore(a, arg2, p));
+ unlock_user(p, arg3, ret);
+ mincore_fail:
+ unlock_user(a, arg1, 0);
+ }
+ break;
+#endif
+#ifdef TARGET_NR_arm_fadvise64_64
+ case TARGET_NR_arm_fadvise64_64:
+ {
+ /*
+ * arm_fadvise64_64 looks like fadvise64_64 but
+ * with different argument order
+ */
+ abi_long temp;
+ temp = arg3;
+ arg3 = arg4;
+ arg4 = temp;
+ }
+#endif
+#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64) || defined(TARGET_NR_fadvise64)
+#ifdef TARGET_NR_fadvise64_64
+ case TARGET_NR_fadvise64_64:
+#endif
+#ifdef TARGET_NR_fadvise64
+ case TARGET_NR_fadvise64:
+#endif
+#ifdef TARGET_S390X
+ switch (arg4) {
+ case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
+ case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
+ case 6: arg4 = POSIX_FADV_DONTNEED; break;
+ case 7: arg4 = POSIX_FADV_NOREUSE; break;
+ default: break;
+ }
+#endif
+ ret = -posix_fadvise(arg1, arg2, arg3, arg4);
+ break;
+#endif
+#ifdef TARGET_NR_madvise
+ case TARGET_NR_madvise:
+ /* A straight passthrough may not be safe because qemu sometimes
+ turns private file-backed mappings into anonymous mappings.
+ This will break MADV_DONTNEED.
+ This is a hint, so ignoring and returning success is ok. */
+ ret = get_errno(0);
+ break;
+#endif
+#if TARGET_ABI_BITS == 32
+ case TARGET_NR_fcntl64:
+ {
+ int cmd;
+ struct flock64 fl;
+ struct target_flock64 *target_fl;
+#ifdef TARGET_ARM
+ struct target_eabi_flock64 *target_efl;
+#endif
+
+ cmd = target_to_host_fcntl_cmd(arg2);
+ if (cmd == -TARGET_EINVAL) {
+ ret = cmd;
+ break;
+ }
+
+ switch(arg2) {
+ case TARGET_F_GETLK64:
+#ifdef TARGET_ARM
+ if (((CPUARMState *)cpu_env)->eabi) {
+ if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
+ goto efault;
+ fl.l_type = tswap16(target_efl->l_type);
+ fl.l_whence = tswap16(target_efl->l_whence);
+ fl.l_start = tswap64(target_efl->l_start);
+ fl.l_len = tswap64(target_efl->l_len);
+ fl.l_pid = tswap32(target_efl->l_pid);
+ unlock_user_struct(target_efl, arg3, 0);
+ } else
+#endif
+ {
+ if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
+ goto efault;
+ fl.l_type = tswap16(target_fl->l_type);
+ fl.l_whence = tswap16(target_fl->l_whence);
+ fl.l_start = tswap64(target_fl->l_start);
+ fl.l_len = tswap64(target_fl->l_len);
+ fl.l_pid = tswap32(target_fl->l_pid);
+ unlock_user_struct(target_fl, arg3, 0);
+ }
+ ret = get_errno(fcntl(arg1, cmd, &fl));
+ if (ret == 0) {
+#ifdef TARGET_ARM
+ if (((CPUARMState *)cpu_env)->eabi) {
+ if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0))
+ goto efault;
+ target_efl->l_type = tswap16(fl.l_type);
+ target_efl->l_whence = tswap16(fl.l_whence);
+ target_efl->l_start = tswap64(fl.l_start);
+ target_efl->l_len = tswap64(fl.l_len);
+ target_efl->l_pid = tswap32(fl.l_pid);
+ unlock_user_struct(target_efl, arg3, 1);
+ } else
+#endif
+ {
+ if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0))
+ goto efault;
+ target_fl->l_type = tswap16(fl.l_type);
+ target_fl->l_whence = tswap16(fl.l_whence);
+ target_fl->l_start = tswap64(fl.l_start);
+ target_fl->l_len = tswap64(fl.l_len);
+ target_fl->l_pid = tswap32(fl.l_pid);
+ unlock_user_struct(target_fl, arg3, 1);
+ }
+ }
+ break;
+
+ case TARGET_F_SETLK64:
+ case TARGET_F_SETLKW64:
+#ifdef TARGET_ARM
+ if (((CPUARMState *)cpu_env)->eabi) {
+ if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
+ goto efault;
+ fl.l_type = tswap16(target_efl->l_type);
+ fl.l_whence = tswap16(target_efl->l_whence);
+ fl.l_start = tswap64(target_efl->l_start);
+ fl.l_len = tswap64(target_efl->l_len);
+ fl.l_pid = tswap32(target_efl->l_pid);
+ unlock_user_struct(target_efl, arg3, 0);
+ } else
+#endif
+ {
+ if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
+ goto efault;
+ fl.l_type = tswap16(target_fl->l_type);
+ fl.l_whence = tswap16(target_fl->l_whence);
+ fl.l_start = tswap64(target_fl->l_start);
+ fl.l_len = tswap64(target_fl->l_len);
+ fl.l_pid = tswap32(target_fl->l_pid);
+ unlock_user_struct(target_fl, arg3, 0);
+ }
+ ret = get_errno(fcntl(arg1, cmd, &fl));
+ break;
+ default:
+ ret = do_fcntl(arg1, arg2, arg3);
+ break;
+ }
+ break;
+ }
+#endif
+#ifdef TARGET_NR_cacheflush
+ case TARGET_NR_cacheflush:
+ /* self-modifying code is handled automatically, so nothing needed */
+ ret = 0;
+ break;
+#endif
+#ifdef TARGET_NR_security
+ case TARGET_NR_security:
+ goto unimplemented;
+#endif
+#ifdef TARGET_NR_getpagesize
+ case TARGET_NR_getpagesize:
+ ret = TARGET_PAGE_SIZE;
+ break;
+#endif
+ case TARGET_NR_gettid:
+ ret = get_errno(gettid());
+ break;
+#ifdef TARGET_NR_readahead
+ case TARGET_NR_readahead:
+#if TARGET_ABI_BITS == 32
+ if (regpairs_aligned(cpu_env)) {
+ arg2 = arg3;
+ arg3 = arg4;
+ arg4 = arg5;
+ }
+ ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4));
+#else
+ ret = get_errno(readahead(arg1, arg2, arg3));
+#endif
+ break;
+#endif
+#ifdef CONFIG_ATTR
+#ifdef TARGET_NR_setxattr
+ case TARGET_NR_listxattr:
+ case TARGET_NR_llistxattr:
+ {
+ void *p, *b = 0;
+ if (arg2) {
+ b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
+ if (!b) {
+ ret = -TARGET_EFAULT;
+ break;
+ }
+ }
+ p = lock_user_string(arg1);
+ if (p) {
+ if (num == TARGET_NR_listxattr) {
+ ret = get_errno(listxattr(p, b, arg3));
+ } else {
+ ret = get_errno(llistxattr(p, b, arg3));
+ }
+ } else {
+ ret = -TARGET_EFAULT;
+ }
+ unlock_user(p, arg1, 0);
+ unlock_user(b, arg2, arg3);
+ break;
+ }
+ case TARGET_NR_flistxattr:
+ {
+ void *b = 0;
+ if (arg2) {
+ b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
+ if (!b) {
+ ret = -TARGET_EFAULT;
+ break;
+ }
+ }
+ ret = get_errno(flistxattr(arg1, b, arg3));
+ unlock_user(b, arg2, arg3);
+ break;
+ }
+ case TARGET_NR_setxattr:
+ case TARGET_NR_lsetxattr:
+ {
+ void *p, *n, *v = 0;
+ if (arg3) {
+ v = lock_user(VERIFY_READ, arg3, arg4, 1);
+ if (!v) {
+ ret = -TARGET_EFAULT;
+ break;
+ }
+ }
+ p = lock_user_string(arg1);
+ n = lock_user_string(arg2);
+ if (p && n) {
+ if (num == TARGET_NR_setxattr) {
+ ret = get_errno(setxattr(p, n, v, arg4, arg5));
+ } else {
+ ret = get_errno(lsetxattr(p, n, v, arg4, arg5));
+ }
+ } else {
+ ret = -TARGET_EFAULT;
+ }
+ unlock_user(p, arg1, 0);
+ unlock_user(n, arg2, 0);
+ unlock_user(v, arg3, 0);
+ }
+ break;
+ case TARGET_NR_fsetxattr:
+ {
+ void *n, *v = 0;
+ if (arg3) {
+ v = lock_user(VERIFY_READ, arg3, arg4, 1);
+ if (!v) {
+ ret = -TARGET_EFAULT;
+ break;
+ }
+ }
+ n = lock_user_string(arg2);
+ if (n) {
+ ret = get_errno(fsetxattr(arg1, n, v, arg4, arg5));
+ } else {
+ ret = -TARGET_EFAULT;
+ }
+ unlock_user(n, arg2, 0);
+ unlock_user(v, arg3, 0);
+ }
+ break;
+ case TARGET_NR_getxattr:
+ case TARGET_NR_lgetxattr:
+ {
+ void *p, *n, *v = 0;
+ if (arg3) {
+ v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
+ if (!v) {
+ ret = -TARGET_EFAULT;
+ break;
+ }
+ }
+ p = lock_user_string(arg1);
+ n = lock_user_string(arg2);
+ if (p && n) {
+ if (num == TARGET_NR_getxattr) {
+ ret = get_errno(getxattr(p, n, v, arg4));
+ } else {
+ ret = get_errno(lgetxattr(p, n, v, arg4));
+ }
+ } else {
+ ret = -TARGET_EFAULT;
+ }
+ unlock_user(p, arg1, 0);
+ unlock_user(n, arg2, 0);
+ unlock_user(v, arg3, arg4);
+ }
+ break;
+ case TARGET_NR_fgetxattr:
+ {
+ void *n, *v = 0;
+ if (arg3) {
+ v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
+ if (!v) {
+ ret = -TARGET_EFAULT;
+ break;
+ }
+ }
+ n = lock_user_string(arg2);
+ if (n) {
+ ret = get_errno(fgetxattr(arg1, n, v, arg4));
+ } else {
+ ret = -TARGET_EFAULT;
+ }
+ unlock_user(n, arg2, 0);
+ unlock_user(v, arg3, arg4);
+ }
+ break;
+ case TARGET_NR_removexattr:
+ case TARGET_NR_lremovexattr:
+ {
+ void *p, *n;
+ p = lock_user_string(arg1);
+ n = lock_user_string(arg2);
+ if (p && n) {
+ if (num == TARGET_NR_removexattr) {
+ ret = get_errno(removexattr(p, n));
+ } else {
+ ret = get_errno(lremovexattr(p, n));
+ }
+ } else {
+ ret = -TARGET_EFAULT;
+ }
+ unlock_user(p, arg1, 0);
+ unlock_user(n, arg2, 0);
+ }
+ break;
+ case TARGET_NR_fremovexattr:
+ {
+ void *n;
+ n = lock_user_string(arg2);
+ if (n) {
+ ret = get_errno(fremovexattr(arg1, n));
+ } else {
+ ret = -TARGET_EFAULT;
+ }
+ unlock_user(n, arg2, 0);
+ }
+ break;
+#endif
+#endif /* CONFIG_ATTR */
+#ifdef TARGET_NR_set_thread_area
+ case TARGET_NR_set_thread_area:
+#if defined(TARGET_MIPS)
+ ((CPUMIPSState *) cpu_env)->active_tc.CP0_UserLocal = arg1;
+ ret = 0;
+ break;
+#elif defined(TARGET_CRIS)
+ if (arg1 & 0xff)
+ ret = -TARGET_EINVAL;
+ else {
+ ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
+ ret = 0;
+ }
+ break;
+#elif defined(TARGET_I386) && defined(TARGET_ABI32)
+ ret = do_set_thread_area(cpu_env, arg1);
+ break;
+#elif defined(TARGET_M68K)
+ {
+ TaskState *ts = cpu->opaque;
+ ts->tp_value = arg1;
+ ret = 0;
+ break;
+ }
+#else
+ goto unimplemented_nowarn;
+#endif
+#endif
+#ifdef TARGET_NR_get_thread_area
+ case TARGET_NR_get_thread_area:
+#if defined(TARGET_I386) && defined(TARGET_ABI32)
+ ret = do_get_thread_area(cpu_env, arg1);
+ break;
+#elif defined(TARGET_M68K)
+ {
+ TaskState *ts = cpu->opaque;
+ ret = ts->tp_value;
+ break;
+ }
+#else
+ goto unimplemented_nowarn;
+#endif
+#endif
+#ifdef TARGET_NR_getdomainname
+ case TARGET_NR_getdomainname:
+ goto unimplemented_nowarn;
+#endif
+
+#ifdef TARGET_NR_clock_gettime
+ case TARGET_NR_clock_gettime:
+ {
+ struct timespec ts;
+ ret = get_errno(clock_gettime(arg1, &ts));
+ if (!is_error(ret)) {
+ host_to_target_timespec(arg2, &ts);
+ }
+ break;
+ }
+#endif
+#ifdef TARGET_NR_clock_getres
+ case TARGET_NR_clock_getres:
+ {
+ struct timespec ts;
+ ret = get_errno(clock_getres(arg1, &ts));
+ if (!is_error(ret)) {
+ host_to_target_timespec(arg2, &ts);
+ }
+ break;
+ }
+#endif
+#ifdef TARGET_NR_clock_nanosleep
+ case TARGET_NR_clock_nanosleep:
+ {
+ struct timespec ts;
+ target_to_host_timespec(&ts, arg3);
+ ret = get_errno(clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL));
+ if (arg4)
+ host_to_target_timespec(arg4, &ts);
+
+#if defined(TARGET_PPC)
+ /* clock_nanosleep is odd in that it returns positive errno values.
+ * On PPC, CR0 bit 3 should be set in such a situation. */
+ if (ret) {
+ ((CPUPPCState *)cpu_env)->crf[0] |= 1;
+ }
+#endif
+ break;
+ }
+#endif
+
+#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
+ case TARGET_NR_set_tid_address:
+ ret = get_errno(set_tid_address((int *)g2h(arg1)));
+ break;
+#endif
+
+#if defined(TARGET_NR_tkill) && defined(__NR_tkill)
+ case TARGET_NR_tkill:
+ ret = get_errno(sys_tkill((int)arg1, target_to_host_signal(arg2)));
+ break;
+#endif
+
+#if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
+ case TARGET_NR_tgkill:
+ ret = get_errno(sys_tgkill((int)arg1, (int)arg2,
+ target_to_host_signal(arg3)));
+ break;
+#endif
+
+#ifdef TARGET_NR_set_robust_list
+ case TARGET_NR_set_robust_list:
+ case TARGET_NR_get_robust_list:
+ /* The ABI for supporting robust futexes has userspace pass
+ * the kernel a pointer to a linked list which is updated by
+ * userspace after the syscall; the list is walked by the kernel
+ * when the thread exits. Since the linked list in QEMU guest
+ * memory isn't a valid linked list for the host and we have
+ * no way to reliably intercept the thread-death event, we can't
+ * support these. Silently return ENOSYS so that guest userspace
+ * falls back to a non-robust futex implementation (which should
+ * be OK except in the corner case of the guest crashing while
+ * holding a mutex that is shared with another process via
+ * shared memory).
+ */
+ goto unimplemented_nowarn;
+#endif
+
+#if defined(TARGET_NR_utimensat)
+ case TARGET_NR_utimensat:
+ {
+ struct timespec *tsp, ts[2];
+ if (!arg3) {
+ tsp = NULL;
+ } else {
+ target_to_host_timespec(ts, arg3);
+ target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
+ tsp = ts;
+ }
+ if (!arg2)
+ ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
+ else {
+ if (!(p = lock_user_string(arg2))) {
+ ret = -TARGET_EFAULT;
+ goto fail;
+ }
+ ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
+ unlock_user(p, arg2, 0);
+ }
+ }
+ break;
+#endif
+ case TARGET_NR_futex:
+ ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6);
+ break;
+#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
+ case TARGET_NR_inotify_init:
+ ret = get_errno(sys_inotify_init());
+ break;
+#endif
+#ifdef CONFIG_INOTIFY1
+#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
+ case TARGET_NR_inotify_init1:
+ ret = get_errno(sys_inotify_init1(arg1));
+ break;
+#endif
+#endif
+#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
+ case TARGET_NR_inotify_add_watch:
+ p = lock_user_string(arg2);
+ ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
+ unlock_user(p, arg2, 0);
+ break;
+#endif
+#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
+ case TARGET_NR_inotify_rm_watch:
+ ret = get_errno(sys_inotify_rm_watch(arg1, arg2));
+ break;
+#endif
+
+#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
+ case TARGET_NR_mq_open:
+ {
+ struct mq_attr posix_mq_attr, *attrp;
+
+ p = lock_user_string(arg1 - 1);
+ if (arg4 != 0) {
+ copy_from_user_mq_attr (&posix_mq_attr, arg4);
+ attrp = &posix_mq_attr;
+ } else {
+ attrp = 0;
+ }
+ ret = get_errno(mq_open(p, arg2, arg3, attrp));
+ unlock_user (p, arg1, 0);
+ }
+ break;
+
+ case TARGET_NR_mq_unlink:
+ p = lock_user_string(arg1 - 1);
+ ret = get_errno(mq_unlink(p));
+ unlock_user (p, arg1, 0);
+ break;
+
+ case TARGET_NR_mq_timedsend:
+ {
+ struct timespec ts;
+
+ p = lock_user (VERIFY_READ, arg2, arg3, 1);
+ if (arg5 != 0) {
+ target_to_host_timespec(&ts, arg5);
+ ret = get_errno(mq_timedsend(arg1, p, arg3, arg4, &ts));
+ host_to_target_timespec(arg5, &ts);
+ }
+ else
+ ret = get_errno(mq_send(arg1, p, arg3, arg4));
+ unlock_user (p, arg2, arg3);
+ }
+ break;
+
+ case TARGET_NR_mq_timedreceive:
+ {
+ struct timespec ts;
+ unsigned int prio;
+
+ p = lock_user (VERIFY_READ, arg2, arg3, 1);
+ if (arg5 != 0) {
+ target_to_host_timespec(&ts, arg5);
+ ret = get_errno(mq_timedreceive(arg1, p, arg3, &prio, &ts));
+ host_to_target_timespec(arg5, &ts);
+ }
+ else
+ ret = get_errno(mq_receive(arg1, p, arg3, &prio));
+ unlock_user (p, arg2, arg3);
+ if (arg4 != 0)
+ put_user_u32(prio, arg4);
+ }
+ break;
+
+ /* Not implemented for now... */
+/* case TARGET_NR_mq_notify: */
+/* break; */
+
+ case TARGET_NR_mq_getsetattr:
+ {
+ struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
+ ret = 0;
+ if (arg3 != 0) {
+ ret = mq_getattr(arg1, &posix_mq_attr_out);
+ copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
+ }
+ if (arg2 != 0) {
+ copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
+ ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out);
+ }
+
+ }
+ break;
+#endif
+
+#ifdef CONFIG_SPLICE
+#ifdef TARGET_NR_tee
+ case TARGET_NR_tee:
+ {
+ ret = get_errno(tee(arg1,arg2,arg3,arg4));
+ }
+ break;
+#endif
+#ifdef TARGET_NR_splice
+ case TARGET_NR_splice:
+ {
+ loff_t loff_in, loff_out;
+ loff_t *ploff_in = NULL, *ploff_out = NULL;
+ if (arg2) {
+ if (get_user_u64(loff_in, arg2)) {
+ goto efault;
+ }
+ ploff_in = &loff_in;
+ }
+ if (arg4) {
+ if (get_user_u64(loff_out, arg4)) {
+ goto efault;
+ }
+ ploff_out = &loff_out;
+ }
+ ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
+ if (arg2) {
+ if (put_user_u64(loff_in, arg2)) {
+ goto efault;
+ }
+ }
+ if (arg4) {
+ if (put_user_u64(loff_out, arg4)) {
+ goto efault;
+ }
+ }
+ }
+ break;
+#endif
+#ifdef TARGET_NR_vmsplice
+ case TARGET_NR_vmsplice:
+ {
+ struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
+ if (vec != NULL) {
+ ret = get_errno(vmsplice(arg1, vec, arg3, arg4));
+ unlock_iovec(vec, arg2, arg3, 0);
+ } else {
+ ret = -host_to_target_errno(errno);
+ }
+ }
+ break;
+#endif
+#endif /* CONFIG_SPLICE */
+#ifdef CONFIG_EVENTFD
+#if defined(TARGET_NR_eventfd)
+ case TARGET_NR_eventfd:
+ ret = get_errno(eventfd(arg1, 0));
+ break;
+#endif
+#if defined(TARGET_NR_eventfd2)
+ case TARGET_NR_eventfd2:
+ {
+ int host_flags = arg2 & (~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC));
+ if (arg2 & TARGET_O_NONBLOCK) {
+ host_flags |= O_NONBLOCK;
+ }
+ if (arg2 & TARGET_O_CLOEXEC) {
+ host_flags |= O_CLOEXEC;
+ }
+ ret = get_errno(eventfd(arg1, host_flags));
+ break;
+ }
+#endif
+#endif /* CONFIG_EVENTFD */
+#if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
+ case TARGET_NR_fallocate:
+#if TARGET_ABI_BITS == 32
+ ret = get_errno(fallocate(arg1, arg2, target_offset64(arg3, arg4),
+ target_offset64(arg5, arg6)));
+#else
+ ret = get_errno(fallocate(arg1, arg2, arg3, arg4));
+#endif
+ break;
+#endif
+#if defined(CONFIG_SYNC_FILE_RANGE)
+#if defined(TARGET_NR_sync_file_range)
+ case TARGET_NR_sync_file_range:
+#if TARGET_ABI_BITS == 32
+#if defined(TARGET_MIPS)
+ ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
+ target_offset64(arg5, arg6), arg7));
+#else
+ ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3),
+ target_offset64(arg4, arg5), arg6));
+#endif /* !TARGET_MIPS */
+#else
+ ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4));
+#endif
+ break;
+#endif
+#if defined(TARGET_NR_sync_file_range2)
+ case TARGET_NR_sync_file_range2:
+ /* This is like sync_file_range but the arguments are reordered */
+#if TARGET_ABI_BITS == 32
+ ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
+ target_offset64(arg5, arg6), arg2));
+#else
+ ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2));
+#endif
+ break;
+#endif
+#endif
+#if defined(CONFIG_EPOLL)
+#if defined(TARGET_NR_epoll_create)
+ case TARGET_NR_epoll_create:
+ ret = get_errno(epoll_create(arg1));
+ break;
+#endif
+#if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1)
+ case TARGET_NR_epoll_create1:
+ ret = get_errno(epoll_create1(arg1));
+ break;
+#endif
+#if defined(TARGET_NR_epoll_ctl)
+ case TARGET_NR_epoll_ctl:
+ {
+ struct epoll_event ep;
+ struct epoll_event *epp = 0;
+ if (arg4) {
+ struct target_epoll_event *target_ep;
+ if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) {
+ goto efault;
+ }
+ ep.events = tswap32(target_ep->events);
+ /* The epoll_data_t union is just opaque data to the kernel,
+ * so we transfer all 64 bits across and need not worry what
+ * actual data type it is.
+ */
+ ep.data.u64 = tswap64(target_ep->data.u64);
+ unlock_user_struct(target_ep, arg4, 0);
+ epp = &ep;
+ }
+ ret = get_errno(epoll_ctl(arg1, arg2, arg3, epp));
+ break;
+ }
+#endif
+
+#if defined(TARGET_NR_epoll_pwait) && defined(CONFIG_EPOLL_PWAIT)
+#define IMPLEMENT_EPOLL_PWAIT
+#endif
+#if defined(TARGET_NR_epoll_wait) || defined(IMPLEMENT_EPOLL_PWAIT)
+#if defined(TARGET_NR_epoll_wait)
+ case TARGET_NR_epoll_wait:
+#endif
+#if defined(IMPLEMENT_EPOLL_PWAIT)
+ case TARGET_NR_epoll_pwait:
+#endif
+ {
+ struct target_epoll_event *target_ep;
+ struct epoll_event *ep;
+ int epfd = arg1;
+ int maxevents = arg3;
+ int timeout = arg4;
+
+ target_ep = lock_user(VERIFY_WRITE, arg2,
+ maxevents * sizeof(struct target_epoll_event), 1);
+ if (!target_ep) {
+ goto efault;
+ }
+
+ ep = alloca(maxevents * sizeof(struct epoll_event));
+
+ switch (num) {
+#if defined(IMPLEMENT_EPOLL_PWAIT)
+ case TARGET_NR_epoll_pwait:
+ {
+ target_sigset_t *target_set;
+ sigset_t _set, *set = &_set;
+
+ if (arg5) {
+ target_set = lock_user(VERIFY_READ, arg5,
+ sizeof(target_sigset_t), 1);
+ if (!target_set) {
+ unlock_user(target_ep, arg2, 0);
+ goto efault;
+ }
+ target_to_host_sigset(set, target_set);
+ unlock_user(target_set, arg5, 0);
+ } else {
+ set = NULL;
+ }
+
+ ret = get_errno(epoll_pwait(epfd, ep, maxevents, timeout, set));
+ break;
+ }
+#endif
+#if defined(TARGET_NR_epoll_wait)
+ case TARGET_NR_epoll_wait:
+ ret = get_errno(epoll_wait(epfd, ep, maxevents, timeout));
+ break;
+#endif
+ default:
+ ret = -TARGET_ENOSYS;
+ }
+ if (!is_error(ret)) {
+ int i;
+ for (i = 0; i < ret; i++) {
+ target_ep[i].events = tswap32(ep[i].events);
+ target_ep[i].data.u64 = tswap64(ep[i].data.u64);
+ }
+ }
+ unlock_user(target_ep, arg2, ret * sizeof(struct target_epoll_event));
+ break;
+ }
+#endif
+#endif
+#ifdef TARGET_NR_prlimit64
+ case TARGET_NR_prlimit64:
+ {
+ /* args: pid, resource number, ptr to new rlimit, ptr to old rlimit */
+ struct target_rlimit64 *target_rnew, *target_rold;
+ struct host_rlimit64 rnew, rold, *rnewp = 0;
+ int resource = target_to_host_resource(arg2);
+ if (arg3) {
+ if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) {
+ goto efault;
+ }
+ rnew.rlim_cur = tswap64(target_rnew->rlim_cur);
+ rnew.rlim_max = tswap64(target_rnew->rlim_max);
+ unlock_user_struct(target_rnew, arg3, 0);
+ rnewp = &rnew;
+ }
+
+ ret = get_errno(sys_prlimit64(arg1, resource, rnewp, arg4 ? &rold : 0));
+ if (!is_error(ret) && arg4) {
+ if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) {
+ goto efault;
+ }
+ target_rold->rlim_cur = tswap64(rold.rlim_cur);
+ target_rold->rlim_max = tswap64(rold.rlim_max);
+ unlock_user_struct(target_rold, arg4, 1);
+ }
+ break;
+ }
+#endif
+#ifdef TARGET_NR_gethostname
+ case TARGET_NR_gethostname:
+ {
+ char *name = lock_user(VERIFY_WRITE, arg1, arg2, 0);
+ if (name) {
+ ret = get_errno(gethostname(name, arg2));
+ unlock_user(name, arg1, arg2);
+ } else {
+ ret = -TARGET_EFAULT;
+ }
+ break;
+ }
+#endif
+#ifdef TARGET_NR_atomic_cmpxchg_32
+ case TARGET_NR_atomic_cmpxchg_32:
+ {
+ /* should use start_exclusive from main.c */
+ abi_ulong mem_value;
+ if (get_user_u32(mem_value, arg6)) {
+ target_siginfo_t info;
+ info.si_signo = SIGSEGV;
+ info.si_errno = 0;
+ info.si_code = TARGET_SEGV_MAPERR;
+ info._sifields._sigfault._addr = arg6;
+ queue_signal((CPUArchState *)cpu_env, info.si_signo, &info);
+ ret = 0xdeadbeef;
+
+ }
+ if (mem_value == arg2)
+ put_user_u32(arg1, arg6);
+ ret = mem_value;
+ break;
+ }
+#endif
+#ifdef TARGET_NR_atomic_barrier
+ case TARGET_NR_atomic_barrier:
+ {
+ /* Like the kernel implementation and the qemu arm barrier, no-op this? */
+ ret = 0;
+ break;
+ }
+#endif
+
+#ifdef TARGET_NR_timer_create
+ case TARGET_NR_timer_create:
+ {
+ /* args: clockid_t clockid, struct sigevent *sevp, timer_t *timerid */
+
+ struct sigevent host_sevp = { {0}, }, *phost_sevp = NULL;
+
+ int clkid = arg1;
+ int timer_index = next_free_host_timer();
+
+ if (timer_index < 0) {
+ ret = -TARGET_EAGAIN;
+ } else {
+ timer_t *phtimer = g_posix_timers + timer_index;
+
+ if (arg2) {
+ phost_sevp = &host_sevp;
+ ret = target_to_host_sigevent(phost_sevp, arg2);
+ if (ret != 0) {
+ break;
+ }
+ }
+
+ ret = get_errno(timer_create(clkid, phost_sevp, phtimer));
+ if (ret) {
+ phtimer = NULL;
+ } else {
+ if (put_user(TIMER_MAGIC | timer_index, arg3, target_timer_t)) {
+ goto efault;
+ }
+ }
+ }
+ break;
+ }
+#endif
+
+#ifdef TARGET_NR_timer_settime
+ case TARGET_NR_timer_settime:
+ {
+ /* args: timer_t timerid, int flags, const struct itimerspec *new_value,
+ * struct itimerspec * old_value */
+ target_timer_t timerid = get_timer_id(arg1);
+
+ if (timerid < 0) {
+ ret = timerid;
+ } else if (arg3 == 0) {
+ ret = -TARGET_EINVAL;
+ } else {
+ timer_t htimer = g_posix_timers[timerid];
+ struct itimerspec hspec_new = {{0},}, hspec_old = {{0},};
+
+ target_to_host_itimerspec(&hspec_new, arg3);
+ ret = get_errno(
+ timer_settime(htimer, arg2, &hspec_new, &hspec_old));
+ host_to_target_itimerspec(arg2, &hspec_old);
+ }
+ break;
+ }
+#endif
+
+#ifdef TARGET_NR_timer_gettime
+ case TARGET_NR_timer_gettime:
+ {
+ /* args: timer_t timerid, struct itimerspec *curr_value */
+ target_timer_t timerid = get_timer_id(arg1);
+
+ if (timerid < 0) {
+ ret = timerid;
+ } else if (!arg2) {
+ ret = -TARGET_EFAULT;
+ } else {
+ timer_t htimer = g_posix_timers[timerid];
+ struct itimerspec hspec;
+ ret = get_errno(timer_gettime(htimer, &hspec));
+
+ if (host_to_target_itimerspec(arg2, &hspec)) {
+ ret = -TARGET_EFAULT;
+ }
+ }
+ break;
+ }
+#endif
+
+#ifdef TARGET_NR_timer_getoverrun
+ case TARGET_NR_timer_getoverrun:
+ {
+ /* args: timer_t timerid */
+ target_timer_t timerid = get_timer_id(arg1);
+
+ if (timerid < 0) {
+ ret = timerid;
+ } else {
+ timer_t htimer = g_posix_timers[timerid];
+ ret = get_errno(timer_getoverrun(htimer));
+ }
+ break;
+ }
+#endif
+
+#ifdef TARGET_NR_timer_delete
+ case TARGET_NR_timer_delete:
+ {
+ /* args: timer_t timerid */
+ target_timer_t timerid = get_timer_id(arg1);
+
+ if (timerid < 0) {
+ ret = timerid;
+ } else {
+ timer_t htimer = g_posix_timers[timerid];
+ ret = get_errno(timer_delete(htimer));
+ g_posix_timers[timerid] = 0;
+ }
+ break;
+ }
+#endif
+
+#if defined(TARGET_NR_timerfd_create) && defined(CONFIG_TIMERFD)
+ case TARGET_NR_timerfd_create:
+ ret = get_errno(timerfd_create(arg1,
+ target_to_host_bitmask(arg2, fcntl_flags_tbl)));
+ break;
+#endif
+
+#if defined(TARGET_NR_timerfd_gettime) && defined(CONFIG_TIMERFD)
+ case TARGET_NR_timerfd_gettime:
+ {
+ struct itimerspec its_curr;
+
+ ret = get_errno(timerfd_gettime(arg1, &its_curr));
+
+ if (arg2 && host_to_target_itimerspec(arg2, &its_curr)) {
+ goto efault;
+ }
+ }
+ break;
+#endif
+
+#if defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD)
+ case TARGET_NR_timerfd_settime:
+ {
+ struct itimerspec its_new, its_old, *p_new;
+
+ if (arg3) {
+ if (target_to_host_itimerspec(&its_new, arg3)) {
+ goto efault;
+ }
+ p_new = &its_new;
+ } else {
+ p_new = NULL;
+ }
+
+ ret = get_errno(timerfd_settime(arg1, arg2, p_new, &its_old));
+
+ if (arg4 && host_to_target_itimerspec(arg4, &its_old)) {
+ goto efault;
+ }
+ }
+ break;
+#endif
+
+#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
+ case TARGET_NR_ioprio_get:
+ ret = get_errno(ioprio_get(arg1, arg2));
+ break;
+#endif
+
+#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
+ case TARGET_NR_ioprio_set:
+ ret = get_errno(ioprio_set(arg1, arg2, arg3));
+ break;
+#endif
+
+#if defined(TARGET_NR_setns) && defined(CONFIG_SETNS)
+ case TARGET_NR_setns:
+ ret = get_errno(setns(arg1, arg2));
+ break;
+#endif
+#if defined(TARGET_NR_unshare) && defined(CONFIG_SETNS)
+ case TARGET_NR_unshare:
+ ret = get_errno(unshare(arg1));
+ break;
+#endif
+
+ default:
+ unimplemented:
+ gemu_log("qemu: Unsupported syscall: %d\n", num);
+#if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)
+ unimplemented_nowarn:
+#endif
+ ret = -TARGET_ENOSYS;
+ break;
+ }
+fail:
+#ifdef DEBUG
+ gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
+#endif
+ if(do_strace)
+ print_syscall_ret(num, ret);
+ return ret;
+efault:
+ ret = -TARGET_EFAULT;
+ goto fail;
+}
Code Review / kvmfornfv.git / blobdiff