From dde2367e209681cb606e137d15e10f976a6e2787 Mon Sep 17 00:00:00 2001 From: aliguori Date: Tue, 18 Nov 2008 20:50:36 +0000 Subject: [PATCH] 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: Jan Kiszka Signed-off-by: Anthony Liguori git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5745 c046a42c-6fe2-441c-8c8c-71466251a162 --- cpu-exec.c | 13 +++++++++++++ exec-all.h | 4 ++++ 2 files changed, 17 insertions(+) diff --git a/cpu-exec.c b/cpu-exec.c index 191d9e4288..8d86527b80 100644 --- a/cpu-exec.c +++ b/cpu-exec.c @@ -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) + debug_excp_handler(env); } /* main execution loop */ diff --git a/exec-all.h b/exec-all.h index e3da98a7fc..aec318ba89 100644 --- a/exec-all.h +++ b/exec-all.h @@ -387,4 +387,8 @@ static inline int kqemu_is_ok(CPUState *env) } #endif + +typedef void (CPUDebugExcpHandler)(CPUState *env); + +CPUDebugExcpHandler *cpu_set_debug_excp_handler(CPUDebugExcpHandler *handler); #endif -- 2.11.4.GIT