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 <[EMAIL PROTECTED]>
---
qemu/cpu-exec.c | 13 +++++++++++++
qemu/exec-all.h | 4 ++++
2 files changed, 17 insertions(+)
Index: b/qemu/cpu-exec.c
===================================================================
--- a/qemu/cpu-exec.c
+++ b/qemu/cpu-exec.c
@@ -244,6 +244,16 @@ static inline TranslationBlock *tb_find_
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;
@@ -251,6 +261,9 @@ static void cpu_handle_debug_exception(C
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 */
Index: b/qemu/exec-all.h
===================================================================
--- a/qemu/exec-all.h
+++ b/qemu/exec-all.h
@@ -385,3 +385,7 @@ static inline int kqemu_is_ok(CPUState *
}
#endif
+
+typedef void (CPUDebugExcpHandler)(CPUState *env);
+
+CPUDebugExcpHandler *cpu_set_debug_excp_handler(CPUDebugExcpHandler *handler);
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