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author | Richard Henderson <richard.henderson@linaro.org> | 2021-07-18 15:12:12 -1000 |
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committer | Richard Henderson <richard.henderson@linaro.org> | 2021-10-15 16:39:14 -0700 |
commit | c9460d75c59fc6b6f110156e4c1035e9ae9bd611 (patch) | |
tree | 014732e0fe9c9e50efa22757345eb44fdd10bea1 /accel | |
parent | 6587b0c1331d427b0939c37e763842550ed581db (diff) | |
download | qemu-c9460d75c59fc6b6f110156e4c1035e9ae9bd611.zip qemu-c9460d75c59fc6b6f110156e4c1035e9ae9bd611.tar.gz qemu-c9460d75c59fc6b6f110156e4c1035e9ae9bd611.tar.bz2 |
accel/tcg: Handle gdb singlestep in cpu_tb_exec
Currently the change in cpu_tb_exec is masked by the debug exception
being raised by the translators. But this allows us to remove that code.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'accel')
-rw-r--r-- | accel/tcg/cpu-exec.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c index 5fd1ed3..c9764c1 100644 --- a/accel/tcg/cpu-exec.c +++ b/accel/tcg/cpu-exec.c @@ -383,6 +383,17 @@ cpu_tb_exec(CPUState *cpu, TranslationBlock *itb, int *tb_exit) cc->set_pc(cpu, last_tb->pc); } } + + /* + * If gdb single-step, and we haven't raised another exception, + * raise a debug exception. Single-step with another exception + * is handled in cpu_handle_exception. + */ + if (unlikely(cpu->singlestep_enabled) && cpu->exception_index == -1) { + cpu->exception_index = EXCP_DEBUG; + cpu_loop_exit(cpu); + } + return last_tb; } |