diff options
| author | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-11-18 20:37:55 +0000 |
|---|---|---|
| committer | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-11-18 20:37:55 +0000 |
| commit | 6e140f28c683578b9f94a19ba345d21b00bd41a8 (patch) | |
| tree | 46144cada2cd69f0d3cbd42d8b9959a73db1e2d3 /cpu-exec.c | |
| parent | 880a7578381d1c7ed4d41c7599ae3cc06567a824 (diff) | |
Introduce BP_WATCHPOINT_HIT flag (Jan Kiszka)
When one watchpoint is hit, others might have triggered as well. To
support users of the watchpoint API which need to detect such cases,
the BP_WATCHPOINT_HIT flag is introduced and maintained.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5744 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'cpu-exec.c')
| -rw-r--r-- | cpu-exec.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/cpu-exec.c b/cpu-exec.c index 1955d24418..191d9e4288 100644 --- a/cpu-exec.c +++ b/cpu-exec.c @@ -183,6 +183,15 @@ static inline TranslationBlock *tb_find_fast(void) return tb; } +static void cpu_handle_debug_exception(CPUState *env) +{ + CPUWatchpoint *wp; + + if (!env->watchpoint_hit) + for (wp = env->watchpoints; wp != NULL; wp = wp->next) + wp->flags &= ~BP_WATCHPOINT_HIT; +} + /* main execution loop */ int cpu_exec(CPUState *env1) @@ -237,6 +246,8 @@ int cpu_exec(CPUState *env1) if (env->exception_index >= EXCP_INTERRUPT) { /* exit request from the cpu execution loop */ ret = env->exception_index; + if (ret == EXCP_DEBUG) + cpu_handle_debug_exception(env); break; } else if (env->user_mode_only) { /* if user mode only, we simulate a fake exception |