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authorRichard Henderson <richard.henderson@linaro.org>2023-07-28 10:22:52 -0700
committerMichael Tokarev <mjt@tls.msk.ru>2023-08-04 19:14:46 +0300
commitf8e673df7e10be0759778963adf5238e736d5ee4 (patch)
treef5d6239ab9fad1d4aebdca89f1d6a4c337ef04a9 /target
parent357b42486c4ad23757c588f92cf2d7d17e2d1fb8 (diff)
target/ppc: Disable goto_tb with architectural singlestep
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 Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> (cherry picked from commit 2e718e665706d5fcc3e3501bda26f277f055ed85) Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Diffstat (limited to 'target')
-rw-r--r--target/ppc/translate.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index 49a6b91842..26222e9078 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -4132,6 +4132,9 @@ 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);
}