target/i386: Drop check for singlestep_enabled

GDB single-stepping is now handled generically.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

diff --git a/target/i386/helper.h b/target/i386/helper.h
index 574ff756156f71d83eec0aafc3101d3a33067e4a..ac3b4d1ee3297604c7996b58fb45e04ea426e26c 100644 (file)
--- a/target/i386/helper.h
+++ b/target/i386/helper.h
@@ -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)

diff --git a/target/i386/tcg/misc_helper.c b/target/i386/tcg/misc_helper.c
index baffa5d7ba9a8935c81ce868d8bc66b887ebfab5..5769db5ace80543710a23bcaaaf6fe5c5c75d99c 100644 (file)
--- a/target/i386/tcg/misc_helper.c
+++ b/target/i386/tcg/misc_helper.c
@@ -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) {

diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index c8d919bc3fe92924537a5e585df790ec4146cdad..e9e145154090c93735f783e023ad1e51147b704a 100644 (file)
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -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) {