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[Qemu-devel] [PATCH 13/16] ARM: linux-user: Restore iWMMXT state from uc
From: |
Riku |
Subject: |
[Qemu-devel] [PATCH 13/16] ARM: linux-user: Restore iWMMXT state from ucontext on sigreturn |
Date: |
Fri, 3 Dec 2010 15:36:40 +0200 |
From: Peter Maydell <address@hidden>
Signed-off-by: Peter Maydell <address@hidden>
Signed-off-by: Riku Voipio <address@hidden>
---
linux-user/signal.c | 30 ++++++++++++++++++++++++++++++
1 files changed, 30 insertions(+), 0 deletions(-)
diff --git a/linux-user/signal.c b/linux-user/signal.c
index b4b610b..c846b8c 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -1602,6 +1602,30 @@ static abi_ulong *restore_sigframe_v2_vfp(CPUState *env,
abi_ulong *regspace)
return (abi_ulong*)(vfpframe + 1);
}
+static abi_ulong *restore_sigframe_v2_iwmmxt(CPUState *env, abi_ulong
*regspace)
+{
+ int i;
+ abi_ulong magic, sz;
+ struct target_iwmmxt_sigframe *iwmmxtframe;
+ iwmmxtframe = (struct target_iwmmxt_sigframe *)regspace;
+
+ __get_user(magic, &iwmmxtframe->magic);
+ __get_user(sz, &iwmmxtframe->size);
+ if (magic != TARGET_IWMMXT_MAGIC || sz != sizeof(*iwmmxtframe)) {
+ return 0;
+ }
+ for (i = 0; i < 16; i++) {
+ __get_user(env->iwmmxt.regs[i], &iwmmxtframe->regs[i]);
+ }
+ __get_user(env->vfp.xregs[ARM_IWMMXT_wCSSF], &iwmmxtframe->wcssf);
+ __get_user(env->vfp.xregs[ARM_IWMMXT_wCASF], &iwmmxtframe->wcssf);
+ __get_user(env->vfp.xregs[ARM_IWMMXT_wCGR0], &iwmmxtframe->wcgr0);
+ __get_user(env->vfp.xregs[ARM_IWMMXT_wCGR1], &iwmmxtframe->wcgr1);
+ __get_user(env->vfp.xregs[ARM_IWMMXT_wCGR2], &iwmmxtframe->wcgr2);
+ __get_user(env->vfp.xregs[ARM_IWMMXT_wCGR3], &iwmmxtframe->wcgr3);
+ return (abi_ulong*)(iwmmxtframe + 1);
+}
+
static int do_sigframe_return_v2(CPUState *env, target_ulong frame_addr,
struct target_ucontext_v2 *uc)
{
@@ -1622,6 +1646,12 @@ static int do_sigframe_return_v2(CPUState *env,
target_ulong frame_addr,
return 1;
}
}
+ if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
+ regspace = restore_sigframe_v2_iwmmxt(env, regspace);
+ if (!regspace) {
+ return 1;
+ }
+ }
if (do_sigaltstack(frame_addr + offsetof(struct target_ucontext_v2,
tuc_stack), 0, get_sp_from_cpustate(env)) == -EFAULT)
return 1;
--
1.6.5
- [Qemu-devel] [PATCH 00/16] linux-user updates, Riku, 2010/12/03
- [Qemu-devel] [PATCH 02/16] linux-user: mmap_reserve() not controlled by RESERVED_VA, Riku, 2010/12/03
- [Qemu-devel] [PATCH 07/16] target-sparc: remove unused functions cpu_lock(), cpu_unlock(), Riku, 2010/12/03
- [Qemu-devel] [PATCH 08/16] ARM: linux-user: Correct size of padding in target_ucontext_v2, Riku, 2010/12/03
- [Qemu-devel] [PATCH 13/16] ARM: linux-user: Restore iWMMXT state from ucontext on sigreturn,
Riku <=
- [Qemu-devel] [PATCH 05/16] linux-user: Translate getsockopt level option, Riku, 2010/12/03
- [Qemu-devel] [PATCH 04/16] linux-user: remove unnecessary local from __get_user(), __put_user(), Riku, 2010/12/03
- [Qemu-devel] [PATCH 14/16] linux-user: fix compiler error on nptl, Riku, 2010/12/03
- [Qemu-devel] [PATCH 03/16] linux-user: fix memory leaks with NPTL emulation, Riku, 2010/12/03
- [Qemu-devel] [PATCH 10/16] ARM: linux-user: Expose VFP registers to signal handlers, Riku, 2010/12/03
- [Qemu-devel] [PATCH 11/16] ARM: linux-user: Restore VFP state from ucontext on sigreturn, Riku, 2010/12/03
- [Qemu-devel] [PATCH 12/16] ARM: linux-user: Expose iWMMXT registers to signal handlers, Riku, 2010/12/03
- [Qemu-devel] [PATCH 06/16] ARM: enable XScale/iWMMXT in linux-user mode, Riku, 2010/12/03
- [Qemu-devel] [PATCH 15/16] update binfmt conf, Riku, 2010/12/03
- [Qemu-devel] [PATCH 01/16] [PATCH] target-arm: remove unused functions cpu_lock(), cpu_unlock(), Riku, 2010/12/03