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| author | Richard Henderson <richard.henderson@linaro.org> | 2021-07-19 10:43:46 -1000 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2021-07-21 07:47:05 -1000 |
| commit | c2ffd7549b14373e9ca68eccd84fab141ffde646 (patch) | |
| tree | 0362efe97ae88aa9d357b92c4ff052a142a55ca3 /accel/tcg/cpu-exec.c | |
| parent | d40c5c79764db01cb7e495bfcec62df9be481bce (diff) | |
| download | focaccia-qemu-c2ffd7549b14373e9ca68eccd84fab141ffde646.tar.gz focaccia-qemu-c2ffd7549b14373e9ca68eccd84fab141ffde646.zip | |
accel/tcg: Record singlestep_enabled in tb->cflags
Set CF_SINGLE_STEP when single-stepping is enabled. This avoids the need to flush all tb's when turning single-stepping on or off. Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'accel/tcg/cpu-exec.c')
| -rw-r--r-- | accel/tcg/cpu-exec.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c index 5cc6363f4c..fc895cf51e 100644 --- a/accel/tcg/cpu-exec.c +++ b/accel/tcg/cpu-exec.c @@ -150,10 +150,15 @@ uint32_t curr_cflags(CPUState *cpu) uint32_t cflags = cpu->tcg_cflags; /* + * Record gdb single-step. We should be exiting the TB by raising + * EXCP_DEBUG, but to simplify other tests, disable chaining too. + * * For singlestep and -d nochain, suppress goto_tb so that * we can log -d cpu,exec after every TB. */ - if (singlestep) { + if (unlikely(cpu->singlestep_enabled)) { + cflags |= CF_NO_GOTO_TB | CF_NO_GOTO_PTR | CF_SINGLE_STEP | 1; + } else if (singlestep) { cflags |= CF_NO_GOTO_TB | 1; } else if (qemu_loglevel_mask(CPU_LOG_TB_NOCHAIN)) { cflags |= CF_NO_GOTO_TB; |