[PATCH] target/ppc: Disable goto_tb with architectural singlestep

[Richard Henderson]

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