mirror of https://github.com/xemu-project/xemu.git
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>
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@ -1130,7 +1130,21 @@ struct target_vfp_sigframe {
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struct target_user_vfp_exc ufp_exc;
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} __attribute__((__aligned__(8)));
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struct target_iwmmxt_sigframe {
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abi_ulong magic;
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abi_ulong size;
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uint64_t regs[16];
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/* Note that not all the coprocessor control registers are stored here */
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uint32_t wcssf;
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uint32_t wcasf;
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uint32_t wcgr0;
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uint32_t wcgr1;
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uint32_t wcgr2;
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uint32_t wcgr3;
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} __attribute__((__aligned__(8)));
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#define TARGET_VFP_MAGIC 0x56465001
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#define TARGET_IWMMXT_MAGIC 0x12ef842a
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struct sigframe_v1
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{
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@ -1292,6 +1306,25 @@ static abi_ulong *setup_sigframe_v2_vfp(abi_ulong *regspace, CPUState *env)
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return (abi_ulong*)(vfpframe+1);
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}
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static abi_ulong *setup_sigframe_v2_iwmmxt(abi_ulong *regspace, CPUState *env)
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{
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int i;
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struct target_iwmmxt_sigframe *iwmmxtframe;
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iwmmxtframe = (struct target_iwmmxt_sigframe *)regspace;
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__put_user(TARGET_IWMMXT_MAGIC, &iwmmxtframe->magic);
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__put_user(sizeof(*iwmmxtframe), &iwmmxtframe->size);
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for (i = 0; i < 16; i++) {
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__put_user(env->iwmmxt.regs[i], &iwmmxtframe->regs[i]);
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}
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__put_user(env->vfp.xregs[ARM_IWMMXT_wCSSF], &iwmmxtframe->wcssf);
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__put_user(env->vfp.xregs[ARM_IWMMXT_wCASF], &iwmmxtframe->wcssf);
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__put_user(env->vfp.xregs[ARM_IWMMXT_wCGR0], &iwmmxtframe->wcgr0);
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__put_user(env->vfp.xregs[ARM_IWMMXT_wCGR1], &iwmmxtframe->wcgr1);
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__put_user(env->vfp.xregs[ARM_IWMMXT_wCGR2], &iwmmxtframe->wcgr2);
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__put_user(env->vfp.xregs[ARM_IWMMXT_wCGR3], &iwmmxtframe->wcgr3);
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return (abi_ulong*)(iwmmxtframe+1);
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}
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static void setup_sigframe_v2(struct target_ucontext_v2 *uc,
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target_sigset_t *set, CPUState *env)
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{
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@ -1314,6 +1347,10 @@ static void setup_sigframe_v2(struct target_ucontext_v2 *uc,
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if (arm_feature(env, ARM_FEATURE_VFP)) {
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regspace = setup_sigframe_v2_vfp(regspace, env);
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}
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if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
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regspace = setup_sigframe_v2_iwmmxt(regspace, env);
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}
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/* Write terminating magic word */
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__put_user(0, regspace);
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