aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorPeter Maydell <peter.maydell@linaro.org>2010-11-24 15:20:07 +0000
committerRiku Voipio <riku.voipio@nokia.com>2010-12-03 15:09:39 +0200
commit08e11256f6a0caae9b8f18fb6a71359b590d97c6 (patch)
tree10c858b5e54c9a9b1e02100f790ab006620da188
parent5f9099d9cee0e9ed377aee705ca9f4db75e8948d (diff)
downloadqemu-arm-08e11256f6a0caae9b8f18fb6a71359b590d97c6.tar.gz
ARM: linux-user: Expose iWMMXT registers to signal handlers
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@nokia.com>
-rw-r--r--linux-user/signal.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/linux-user/signal.c b/linux-user/signal.c
index 63d893b876..b4b610bd18 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -1130,7 +1130,21 @@ struct target_vfp_sigframe {
struct target_user_vfp_exc ufp_exc;
} __attribute__((__aligned__(8)));
+struct target_iwmmxt_sigframe {
+ abi_ulong magic;
+ abi_ulong size;
+ uint64_t regs[16];
+ /* Note that not all the coprocessor control registers are stored here */
+ uint32_t wcssf;
+ uint32_t wcasf;
+ uint32_t wcgr0;
+ uint32_t wcgr1;
+ uint32_t wcgr2;
+ uint32_t wcgr3;
+} __attribute__((__aligned__(8)));
+
#define TARGET_VFP_MAGIC 0x56465001
+#define TARGET_IWMMXT_MAGIC 0x12ef842a
struct sigframe_v1
{
@@ -1292,6 +1306,25 @@ static abi_ulong *setup_sigframe_v2_vfp(abi_ulong *regspace, CPUState *env)
return (abi_ulong*)(vfpframe+1);
}
+static abi_ulong *setup_sigframe_v2_iwmmxt(abi_ulong *regspace, CPUState *env)
+{
+ int i;
+ struct target_iwmmxt_sigframe *iwmmxtframe;
+ iwmmxtframe = (struct target_iwmmxt_sigframe *)regspace;
+ __put_user(TARGET_IWMMXT_MAGIC, &iwmmxtframe->magic);
+ __put_user(sizeof(*iwmmxtframe), &iwmmxtframe->size);
+ for (i = 0; i < 16; i++) {
+ __put_user(env->iwmmxt.regs[i], &iwmmxtframe->regs[i]);
+ }
+ __put_user(env->vfp.xregs[ARM_IWMMXT_wCSSF], &iwmmxtframe->wcssf);
+ __put_user(env->vfp.xregs[ARM_IWMMXT_wCASF], &iwmmxtframe->wcssf);
+ __put_user(env->vfp.xregs[ARM_IWMMXT_wCGR0], &iwmmxtframe->wcgr0);
+ __put_user(env->vfp.xregs[ARM_IWMMXT_wCGR1], &iwmmxtframe->wcgr1);
+ __put_user(env->vfp.xregs[ARM_IWMMXT_wCGR2], &iwmmxtframe->wcgr2);
+ __put_user(env->vfp.xregs[ARM_IWMMXT_wCGR3], &iwmmxtframe->wcgr3);
+ return (abi_ulong*)(iwmmxtframe+1);
+}
+
static void setup_sigframe_v2(struct target_ucontext_v2 *uc,
target_sigset_t *set, CPUState *env)
{
@@ -1314,6 +1347,10 @@ static void setup_sigframe_v2(struct target_ucontext_v2 *uc,
if (arm_feature(env, ARM_FEATURE_VFP)) {
regspace = setup_sigframe_v2_vfp(regspace, env);
}
+ if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
+ regspace = setup_sigframe_v2_iwmmxt(regspace, env);
+ }
+
/* Write terminating magic word */
__put_user(0, regspace);