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target/i386: Drop check for singlestep_enabled

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GDB single-stepping is now handled generically.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-07-19 16:04:29 -10:00
parent 9ef6c6ec08
commit 4bc4c3135b
3 changed files with 1 additions and 12 deletions
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1
target/i386/helper.h
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@ -56,7 +56,6 @@ DEF_HELPER_2(syscall, void, env, int)
DEF_HELPER_2(sysret, void, env, int)
#endif
DEF_HELPER_FLAGS_2(pause, TCG_CALL_NO_WG, noreturn, env, int)
DEF_HELPER_FLAGS_1(debug, TCG_CALL_NO_WG, noreturn, env)
DEF_HELPER_1(reset_rf, void, env)
DEF_HELPER_FLAGS_3(raise_interrupt, TCG_CALL_NO_WG, noreturn, env, int, int)
DEF_HELPER_FLAGS_2(raise_exception, TCG_CALL_NO_WG, noreturn, env, int)

8
target/i386/tcg/misc_helper.c
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@ -110,14 +110,6 @@ void QEMU_NORETURN helper_pause(CPUX86State *env, int next_eip_addend)
do_pause(env);
}
void QEMU_NORETURN helper_debug(CPUX86State *env)
{
CPUState *cs = env_cpu(env);
cs->exception_index = EXCP_DEBUG;
cpu_loop_exit(cs);
}
uint64_t helper_rdpkru(CPUX86State *env, uint32_t ecx)
{
if ((env->cr[4] & CR4_PKE_MASK) == 0) {

4
target/i386/tcg/translate.c
View File

@ -2660,9 +2660,7 @@ do_gen_eob_worker(DisasContext *s, bool inhibit, bool recheck_tf, bool jr)
if (s->base.tb->flags & HF_RF_MASK) {
gen_helper_reset_rf(cpu_env);
}
if (s->base.singlestep_enabled) {
gen_helper_debug(cpu_env);
} else if (recheck_tf) {
if (recheck_tf) {
gen_helper_rechecking_single_step(cpu_env);
tcg_gen_exit_tb(NULL, 0);
} else if (s->flags & HF_TF_MASK) {