struct ucontext32 uc;
} rt_sigframe32;
+static inline void sigset_to_sigset32(unsigned long *set64,
+ compat_sigset_word *set32)
+{
+ set32[0] = (compat_sigset_word) set64[0];
+ set32[1] = (compat_sigset_word)(set64[0] >> 32);
+}
+
+static inline void sigset32_to_sigset(compat_sigset_word *set32,
+ unsigned long *set64)
+{
+ set64[0] = (unsigned long) set32[0] | ((unsigned long) set32[1] << 32);
+}
+
int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from)
{
int err;
/* Store registers needed to create the signal frame */
static void store_sigregs(void)
{
- int i;
-
save_access_regs(current->thread.acrs);
- save_fp_ctl(¤t->thread.fp_regs.fpc);
- if (current->thread.vxrs) {
- save_vx_regs(current->thread.vxrs);
- for (i = 0; i < __NUM_FPRS; i++)
- current->thread.fp_regs.fprs[i] =
- *(freg_t *)(current->thread.vxrs + i);
- } else
- save_fp_regs(current->thread.fp_regs.fprs);
+ save_fpu_regs();
}
/* Load registers after signal return */
static void load_sigregs(void)
{
- int i;
-
restore_access_regs(current->thread.acrs);
- /* restore_fp_ctl is done in restore_sigregs */
- if (current->thread.vxrs) {
- for (i = 0; i < __NUM_FPRS; i++)
- *(freg_t *)(current->thread.vxrs + i) =
- current->thread.fp_regs.fprs[i];
- restore_vx_regs(current->thread.vxrs);
- } else
- restore_fp_regs(current->thread.fp_regs.fprs);
}
static int save_sigregs32(struct pt_regs *regs, _sigregs32 __user *sregs)
user_sregs.regs.gprs[i] = (__u32) regs->gprs[i];
memcpy(&user_sregs.regs.acrs, current->thread.acrs,
sizeof(user_sregs.regs.acrs));
- memcpy(&user_sregs.fpregs, ¤t->thread.fp_regs,
- sizeof(user_sregs.fpregs));
+ fpregs_store((_s390_fp_regs *) &user_sregs.fpregs, ¤t->thread.fpu);
if (__copy_to_user(sregs, &user_sregs, sizeof(_sigregs32)))
return -EFAULT;
return 0;
if (!is_ri_task(current) && (user_sregs.regs.psw.mask & PSW32_MASK_RI))
return -EINVAL;
- /* Loading the floating-point-control word can fail. Do that first. */
- if (restore_fp_ctl(&user_sregs.fpregs.fpc))
+ /* Test the floating-point-control word. */
+ if (test_fp_ctl(user_sregs.fpregs.fpc))
return -EINVAL;
/* Use regs->psw.mask instead of PSW_USER_BITS to preserve PER bit. */
regs->gprs[i] = (__u64) user_sregs.regs.gprs[i];
memcpy(¤t->thread.acrs, &user_sregs.regs.acrs,
sizeof(current->thread.acrs));
-
- memcpy(¤t->thread.fp_regs, &user_sregs.fpregs,
- sizeof(current->thread.fp_regs));
+ fpregs_load((_s390_fp_regs *) &user_sregs.fpregs, ¤t->thread.fpu);
clear_pt_regs_flag(regs, PIF_SYSCALL); /* No longer in a system call */
return 0;
return -EFAULT;
/* Save vector registers to signal stack */
- if (current->thread.vxrs) {
+ if (MACHINE_HAS_VX) {
for (i = 0; i < __NUM_VXRS_LOW; i++)
- vxrs[i] = *((__u64 *)(current->thread.vxrs + i) + 1);
+ vxrs[i] = *((__u64 *)(current->thread.fpu.vxrs + i) + 1);
if (__copy_to_user(&sregs_ext->vxrs_low, vxrs,
sizeof(sregs_ext->vxrs_low)) ||
__copy_to_user(&sregs_ext->vxrs_high,
- current->thread.vxrs + __NUM_VXRS_LOW,
+ current->thread.fpu.vxrs + __NUM_VXRS_LOW,
sizeof(sregs_ext->vxrs_high)))
return -EFAULT;
}
/* Restore high gprs from signal stack */
if (__copy_from_user(&gprs_high, &sregs_ext->gprs_high,
- sizeof(&sregs_ext->gprs_high)))
+ sizeof(sregs_ext->gprs_high)))
return -EFAULT;
for (i = 0; i < NUM_GPRS; i++)
*(__u32 *)®s->gprs[i] = gprs_high[i];
/* Restore vector registers from signal stack */
- if (current->thread.vxrs) {
+ if (MACHINE_HAS_VX) {
if (__copy_from_user(vxrs, &sregs_ext->vxrs_low,
sizeof(sregs_ext->vxrs_low)) ||
- __copy_from_user(current->thread.vxrs + __NUM_VXRS_LOW,
+ __copy_from_user(current->thread.fpu.vxrs + __NUM_VXRS_LOW,
&sregs_ext->vxrs_high,
sizeof(sregs_ext->vxrs_high)))
return -EFAULT;
for (i = 0; i < __NUM_VXRS_LOW; i++)
- *((__u64 *)(current->thread.vxrs + i) + 1) = vxrs[i];
+ *((__u64 *)(current->thread.fpu.vxrs + i) + 1) = vxrs[i];
}
return 0;
}
{
struct pt_regs *regs = task_pt_regs(current);
sigframe32 __user *frame = (sigframe32 __user *)regs->gprs[15];
+ compat_sigset_t cset;
sigset_t set;
- if (__copy_from_user(&set.sig, &frame->sc.oldmask, _SIGMASK_COPY_SIZE32))
+ if (__copy_from_user(&cset.sig, &frame->sc.oldmask, _SIGMASK_COPY_SIZE32))
goto badframe;
+ sigset32_to_sigset(cset.sig, set.sig);
set_current_blocked(&set);
+ save_fpu_regs();
if (restore_sigregs32(regs, &frame->sregs))
goto badframe;
if (restore_sigregs_ext32(regs, &frame->sregs_ext))
{
struct pt_regs *regs = task_pt_regs(current);
rt_sigframe32 __user *frame = (rt_sigframe32 __user *)regs->gprs[15];
+ compat_sigset_t cset;
sigset_t set;
- if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
+ if (__copy_from_user(&cset, &frame->uc.uc_sigmask, sizeof(cset)))
goto badframe;
+ sigset32_to_sigset(cset.sig, set.sig);
set_current_blocked(&set);
if (compat_restore_altstack(&frame->uc.uc_stack))
goto badframe;
+ save_fpu_regs();
if (restore_sigregs32(regs, &frame->uc.uc_mcontext))
goto badframe;
if (restore_sigregs_ext32(regs, &frame->uc.uc_mcontext_ext))
return -EFAULT;
/* Create struct sigcontext32 on the signal stack */
- memcpy(&sc.oldmask, &set->sig, _SIGMASK_COPY_SIZE32);
+ sigset_to_sigset32(set->sig, sc.oldmask);
sc.sregs = (__u32)(unsigned long __force) &frame->sregs;
if (__copy_to_user(&frame->sc, &sc, sizeof(frame->sc)))
return -EFAULT;
static int setup_rt_frame32(struct ksignal *ksig, sigset_t *set,
struct pt_regs *regs)
{
+ compat_sigset_t cset;
rt_sigframe32 __user *frame;
unsigned long restorer;
size_t frame_size;
*/
uc_flags = UC_GPRS_HIGH;
if (MACHINE_HAS_VX) {
- if (current->thread.vxrs)
- uc_flags |= UC_VXRS;
+ uc_flags |= UC_VXRS;
} else
frame_size -= sizeof(frame->uc.uc_mcontext_ext.vxrs_low) +
sizeof(frame->uc.uc_mcontext_ext.vxrs_high);
store_sigregs();
/* Create ucontext on the signal stack. */
+ sigset_to_sigset32(set->sig, cset.sig);
if (__put_user(uc_flags, &frame->uc.uc_flags) ||
__put_user(0, &frame->uc.uc_link) ||
__compat_save_altstack(&frame->uc.uc_stack, regs->gprs[15]) ||
save_sigregs32(regs, &frame->uc.uc_mcontext) ||
- __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)) ||
+ __copy_to_user(&frame->uc.uc_sigmask, &cset, sizeof(cset)) ||
save_sigregs_ext32(regs, &frame->uc.uc_mcontext_ext))
return -EFAULT;
Code Review / kvmfornfv.git / blobdiff