Commit dde2367e authored by aliguori's avatar aliguori

Add debug exception hook (Jan Kiszka)

This patch allows to hook into the delivery of EXCP_DEBUG so that other
use beyond guest debugging becomes possible.
Signed-off-by: default avatarJan Kiszka <>
Signed-off-by: default avatarAnthony Liguori <>

git-svn-id: svn:// c046a42c-6fe2-441c-8c8c-71466251a162
parent 6e140f28
......@@ -183,6 +183,16 @@ static inline TranslationBlock *tb_find_fast(void)
return tb;
static CPUDebugExcpHandler *debug_excp_handler;
CPUDebugExcpHandler *cpu_set_debug_excp_handler(CPUDebugExcpHandler *handler)
CPUDebugExcpHandler *old_handler = debug_excp_handler;
debug_excp_handler = handler;
return old_handler;
static void cpu_handle_debug_exception(CPUState *env)
CPUWatchpoint *wp;
......@@ -190,6 +200,9 @@ static void cpu_handle_debug_exception(CPUState *env)
if (!env->watchpoint_hit)
for (wp = env->watchpoints; wp != NULL; wp = wp->next)
wp->flags &= ~BP_WATCHPOINT_HIT;
if (debug_excp_handler)
/* main execution loop */
......@@ -387,4 +387,8 @@ static inline int kqemu_is_ok(CPUState *env)
typedef void (CPUDebugExcpHandler)(CPUState *env);
CPUDebugExcpHandler *cpu_set_debug_excp_handler(CPUDebugExcpHandler *handler);
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