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Fix Thumb signal handlers. 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4089 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
pbrook 2008-03-21 16:07:30 +00:00
parent 3b89f26c11
commit 75b680e523
1 changed files with 3 additions and 28 deletions
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31
linux-user/signal.c
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@ -1129,33 +1129,7 @@ setup_return(CPUState *env, struct emulated_sigaction *ka,
{
abi_ulong handler = ka->sa._sa_handler;
abi_ulong retcode;
int thumb = 0;
#if defined(TARGET_CONFIG_CPU_32)
#if 0
abi_ulong cpsr = env->cpsr;
/*
* Maybe we need to deliver a 32-bit signal to a 26-bit task.
*/
if (ka->sa.sa_flags & SA_THIRTYTWO)
cpsr = (cpsr & ~MODE_MASK) | USR_MODE;
#ifdef CONFIG_ARM_THUMB
if (elf_hwcap & HWCAP_THUMB) {
/*
* The LSB of the handler determines if we're going to
* be using THUMB or ARM mode for this signal handler.
*/
thumb = handler & 1;
if (thumb)
cpsr |= T_BIT;
else
cpsr &= ~T_BIT;
}
#endif /* CONFIG_ARM_THUMB */
#endif /* 0 */
#endif /* TARGET_CONFIG_CPU_32 */
int thumb = handler & 1;
if (ka->sa.sa_flags & TARGET_SA_RESTORER) {
retcode = ka->sa.sa_restorer;
@ -1178,6 +1152,7 @@ setup_return(CPUState *env, struct emulated_sigaction *ka,
env->regs[13] = frame_addr;
env->regs[14] = retcode;
env->regs[15] = handler & (thumb ? ~1 : ~3);
env->thumb = thumb;
#if 0
#ifdef TARGET_CONFIG_CPU_32
@ -1295,7 +1270,7 @@ restore_sigcontext(CPUState *env, struct target_sigcontext *sc)
__get_user_error(env->regs[15], &sc->arm_pc, err);
#ifdef TARGET_CONFIG_CPU_32
__get_user_error(cpsr, &sc->arm_cpsr, err);
cpsr_write(env, cpsr, 0xffffffff);
cpsr_write(env, cpsr, CPSR_USER | CPSR_EXEC);
#endif
err |= !valid_user_regs(env);