target/ppc/translate.c | 3 +++ 1 file changed, 3 insertions(+)
The change to use translator_use_goto_tb went too far, as the
CF_SINGLE_STEP flag managed by the translator only handles
gdb single stepping and not the architectural single stepping
modeled in DisasContext.singlestep_enabled.
Fixes: 6e9cc373ec5 ("target/ppc: Use translator_use_goto_tb")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1795
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/ppc/translate.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index e6a0709066..74796ec7ba 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -4175,6 +4175,9 @@ static void pmu_count_insns(DisasContext *ctx)
static inline bool use_goto_tb(DisasContext *ctx, target_ulong dest)
{
+ if (unlikely(ctx->singlestep_enabled)) {
+ return false;
+ }
return translator_use_goto_tb(&ctx->base, dest);
}
--
2.34.1
On 28/7/23 19:35, Richard Henderson wrote: > The change to use translator_use_goto_tb went too far, as the > CF_SINGLE_STEP flag managed by the translator only handles > gdb single stepping and not the architectural single stepping > modeled in DisasContext.singlestep_enabled. > > Fixes: 6e9cc373ec5 ("target/ppc: Use translator_use_goto_tb") > Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1795 > Signed-off-by: Richard Henderson <richard.henderson@linaro.org> > --- > target/ppc/translate.c | 3 +++ > 1 file changed, 3 insertions(+) Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
On 7/28/23 19:35, Richard Henderson wrote: > The change to use translator_use_goto_tb went too far, as the > CF_SINGLE_STEP flag managed by the translator only handles > gdb single stepping and not the architectural single stepping > modeled in DisasContext.singlestep_enabled. > > Fixes: 6e9cc373ec5 ("target/ppc: Use translator_use_goto_tb") > Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1795 > Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Cédric Le Goater <clg@kaod.org> Thanks, C. > --- > target/ppc/translate.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/target/ppc/translate.c b/target/ppc/translate.c > index e6a0709066..74796ec7ba 100644 > --- a/target/ppc/translate.c > +++ b/target/ppc/translate.c > @@ -4175,6 +4175,9 @@ static void pmu_count_insns(DisasContext *ctx) > > static inline bool use_goto_tb(DisasContext *ctx, target_ulong dest) > { > + if (unlikely(ctx->singlestep_enabled)) { > + return false; > + } > return translator_use_goto_tb(&ctx->base, dest); > } >
Cc qemu-stable. On 7/28/23 10:35, Richard Henderson wrote: > The change to use translator_use_goto_tb went too far, as the > CF_SINGLE_STEP flag managed by the translator only handles > gdb single stepping and not the architectural single stepping > modeled in DisasContext.singlestep_enabled. > > Fixes: 6e9cc373ec5 ("target/ppc: Use translator_use_goto_tb") > Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1795 > Signed-off-by: Richard Henderson <richard.henderson@linaro.org> > --- > target/ppc/translate.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/target/ppc/translate.c b/target/ppc/translate.c > index e6a0709066..74796ec7ba 100644 > --- a/target/ppc/translate.c > +++ b/target/ppc/translate.c > @@ -4175,6 +4175,9 @@ static void pmu_count_insns(DisasContext *ctx) > > static inline bool use_goto_tb(DisasContext *ctx, target_ulong dest) > { > + if (unlikely(ctx->singlestep_enabled)) { > + return false; > + } > return translator_use_goto_tb(&ctx->base, dest); > } >
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