Fix SH4 single-stepping.

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(-)

index 82f4168..365936f 100644
@@ -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

Thanks, applied.

  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   [email protected]         | [email protected]
   `-    people.debian.org/~aurel32 | www.aurel32.net