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[Qemu-devel] [PATCH] Fix SH4 single-stepping.
From: |
Vladimir Prus |
Subject: |
[Qemu-devel] [PATCH] Fix SH4 single-stepping. |
Date: |
Sun, 12 Oct 2008 19:16:43 +0400 |
Presently, when connecting with GDB to sh4 system qemu emulator, single-stepping
does not work -- we end up at the same instruction. Also, after breakpoint hit,
continue does not work either -- because GDB tries to single-step over
breakpoint,
which is likewise broken.
This patch fixes the issue.
- Volodya
* target-sh/translate.c (gen_intermediate_code_internal): If
singlestep is enabled, update PC before stopping.
---
target-sh4/translate.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/target-sh4/translate.c b/target-sh4/translate.c
index 82f4168..365936f 100644
--- a/target-sh4/translate.c
+++ b/target-sh4/translate.c
@@ -1867,6 +1867,7 @@ gen_intermediate_code_internal(CPUState * env,
TranslationBlock * tb,
if (tb->cflags & CF_LAST_IO)
gen_io_end();
if (env->singlestep_enabled) {
+ tcg_gen_movi_i32(cpu_pc, ctx.pc);
tcg_gen_helper_0_0(helper_debug);
} else {
switch (ctx.bstate) {
--
1.5.3.5
- [Qemu-devel] [PATCH] Fix SH4 single-stepping.,
Vladimir Prus <=