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Fix pausing within Thumb2 ITE blocks (#853) (#880)

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Co-authored-by: Rami Ali <flowergrass@users.noreply.github.com>
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Rami Ali
2021-03-30 01:54:45 +11:00
committed by GitHub
parent 7ca7e8a79d
commit 34ddafcbcf
1 changed files with 17 additions and 11 deletions
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6
qemu/target-arm/translate.c
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@ -10434,6 +10434,8 @@ static void disas_thumb_insn(CPUARMState *env, DisasContext *s) // qq
// Unicorn: trace this instruction on request // Unicorn: trace this instruction on request
if (HOOK_EXISTS_BOUNDED(s->uc, UC_HOOK_CODE, s->pc)) { if (HOOK_EXISTS_BOUNDED(s->uc, UC_HOOK_CODE, s->pc)) {
// determine instruction size (Thumb/Thumb2) // determine instruction size (Thumb/Thumb2)
// avoid terminating inside ITE clause
if (s->condexec_mask == 0) {
switch(insn & 0xf800) { switch(insn & 0xf800) {
// Thumb2: 32-bit // Thumb2: 32-bit
case 0xe800: case 0xe800:
@ -10443,9 +10445,13 @@ static void disas_thumb_insn(CPUARMState *env, DisasContext *s) // qq
break; break;
// Thumb: 16-bit // Thumb: 16-bit
default: default:
// avoid terminating at an IT instruction
if (!((insn & 0xff00) == 0xbf00)) {
gen_uc_tracecode(tcg_ctx, 2, UC_HOOK_CODE_IDX, s->uc, s->pc); gen_uc_tracecode(tcg_ctx, 2, UC_HOOK_CODE_IDX, s->uc, s->pc);
}
break; break;
} }
}
// the callback might want to stop emulation immediately // the callback might want to stop emulation immediately
check_exit_request(tcg_ctx); check_exit_request(tcg_ctx);
} }