Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / arch / x86 / core / linux / linux_api.c

diff --git a/qemu/roms/ipxe/src/arch/x86/core/linux/linux_api.c b/qemu/roms/ipxe/src/arch/x86/core/linux/linux_api.c
new file mode 100644 (file)
index 0000000..0bed9fd
--- /dev/null
+++ b/qemu/roms/ipxe/src/arch/x86/core/linux/linux_api.c
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2010 Piotr Jaroszyński <p.jaroszynski@gmail.com>
+ *
+ * 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 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+/** @file
+ *
+ * Implementation of most of the linux API.
+ */
+
+#include <linux_api.h>
+
+#include <stdarg.h>
+#include <asm/unistd.h>
+#include <string.h>
+
+int linux_open ( const char *pathname, int flags ) {
+       return linux_syscall ( __NR_open, pathname, flags );
+}
+
+int linux_close ( int fd ) {
+       return linux_syscall ( __NR_close, fd );
+}
+
+off_t linux_lseek ( int fd, off_t offset, int whence ) {
+       return linux_syscall ( __NR_lseek, fd, offset, whence );
+}
+
+__kernel_ssize_t linux_read ( int fd, void *buf, __kernel_size_t count ) {
+       return linux_syscall ( __NR_read, fd, buf, count );
+}
+
+__kernel_ssize_t linux_write ( int fd, const void *buf,
+                              __kernel_size_t count ) {
+       return linux_syscall  (  __NR_write, fd, buf, count );
+}
+
+int linux_fcntl ( int fd, int cmd, ... ) {
+       long arg;
+       va_list list;
+
+       va_start ( list, cmd );
+       arg = va_arg ( list, long );
+       va_end ( list );
+
+       return linux_syscall ( __NR_fcntl, fd, cmd, arg );
+}
+
+int linux_ioctl ( int fd, int request, ... ) {
+       void *arg;
+       va_list list;
+
+       va_start ( list, request );
+       arg = va_arg ( list, void * );
+       va_end ( list );
+
+       return linux_syscall ( __NR_ioctl, fd, request, arg );
+}
+
+int linux_poll ( struct pollfd *fds, nfds_t nfds, int timeout ) {
+       return linux_syscall ( __NR_poll, fds, nfds, timeout );
+}
+
+int linux_nanosleep ( const struct timespec *req, struct timespec *rem ) {
+       return linux_syscall ( __NR_nanosleep, req, rem );
+}
+
+int linux_usleep ( useconds_t usec ) {
+       struct timespec ts = {
+               .tv_sec = ( ( long ) ( usec / 1000000 ) ),
+               .tv_nsec = ( ( long ) ( usec % 1000000 ) * 1000UL ),
+       };
+
+       return linux_nanosleep ( &ts, NULL );
+}
+
+int linux_gettimeofday ( struct timeval *tv, struct timezone *tz ) {
+       return linux_syscall ( __NR_gettimeofday, tv, tz );
+}
+
+void * linux_mmap ( void *addr, __kernel_size_t length, int prot, int flags,
+                   int fd, __kernel_off_t offset ) {
+       return ( void * ) linux_syscall ( __SYSCALL_mmap, addr, length, prot,
+                                         flags, fd, offset );
+}
+
+void * linux_mremap ( void *old_address, __kernel_size_t old_size,
+                     __kernel_size_t new_size, int flags ) {
+       return ( void * ) linux_syscall ( __NR_mremap, old_address, old_size,
+                                         new_size, flags );
+}
+
+int linux_munmap ( void *addr, __kernel_size_t length ) {
+       return linux_syscall ( __NR_munmap, addr, length );
+}