From 6e140f28c683578b9f94a19ba345d21b00bd41a8 Mon Sep 17 00:00:00 2001 From: aliguori Date: Tue, 18 Nov 2008 20:37:55 +0000 Subject: 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 Signed-off-by: Anthony Liguori git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5744 c046a42c-6fe2-441c-8c8c-71466251a162 --- cpu-exec.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'cpu-exec.c') 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 -- cgit 1.4.1