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[Qemu-devel] [RFC PATCH v4 11/13] cpu-exec: trigger a debug request when
From: |
fred . konrad |
Subject: |
[Qemu-devel] [RFC PATCH v4 11/13] cpu-exec: trigger a debug request when rexec stops. |
Date: |
Wed, 25 Jun 2014 10:26:46 +0200 |
From: KONRAD Frederic <address@hidden>
This allows QEMU to trigger a debug exception when cexe_dbg_requested
is set.
Signed-off-by: KONRAD Frederic <address@hidden>
---
cpu-exec.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/cpu-exec.c b/cpu-exec.c
index 38e5f02..c92cfd1 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -22,6 +22,7 @@
#include "tcg.h"
#include "qemu/atomic.h"
#include "sysemu/qtest.h"
+#include "reverse-execution.h"
void cpu_loop_exit(CPUState *cpu)
{
@@ -230,6 +231,18 @@ int cpu_exec(CPUArchState *env)
/* This must be volatile so it is not trashed by longjmp() */
volatile bool have_tb_lock = false;
+ #ifndef CONFIG_USER_ONLY
+ if (cexe_is_enabled() && cexe_dbg_requested()) {
+ /*
+ * Reverse execution need to stop right now.
+ * So just generate a EXCP_DEBUG.
+ */
+ cpu->exception_index = EXCP_DEBUG;
+ cpu_handle_debug_exception(env);
+ return EXCP_DEBUG;
+ }
+ #endif /* !CONFIG_USER_ONLY */
+
if (cpu->halted) {
if (!cpu_has_work(cpu)) {
return EXCP_HALTED;
--
1.9.0
- [Qemu-devel] [RFC PATCH v4 01/13] icount: put icount variables into TimerState., (continued)
- [Qemu-devel] [RFC PATCH v4 01/13] icount: put icount variables into TimerState., fred . konrad, 2014/06/25
- [Qemu-devel] [RFC PATCH v4 03/13] migration: make qemu_savevm_state public., fred . konrad, 2014/06/25
- [Qemu-devel] [RFC PATCH v4 05/13] icount: check for icount clock deadline when cpu loop exits., fred . konrad, 2014/06/25
- [Qemu-devel] [RFC PATCH v4 04/13] icount: introduce icount timer., fred . konrad, 2014/06/25
- [Qemu-devel] [RFC PATCH v4 06/13] icount: make icount extra computed on icount clock as well., fred . konrad, 2014/06/25
- [Qemu-devel] [RFC PATCH v4 09/13] introduce reverse execution mechanism., fred . konrad, 2014/06/25
- [Qemu-devel] [RFC PATCH v4 07/13] timer: add cpu_icount_to_ns function., fred . konrad, 2014/06/25
- [Qemu-devel] [RFC PATCH v4 08/13] trace-events: add reverse-execution events., fred . konrad, 2014/06/25
- [Qemu-devel] [RFC PATCH v4 10/13] gdbstub: allow reverse execution in gdb stub., fred . konrad, 2014/06/25
- [Qemu-devel] [RFC PATCH v4 11/13] cpu-exec: trigger a debug request when rexec stops.,
fred . konrad <=
- [Qemu-devel] [RFC PATCH v4 12/13] cexe: synchronize icount on the next event., fred . konrad, 2014/06/25
- [Qemu-devel] [RFC PATCH v4 13/13] cexe: allow to enable reverse execution., fred . konrad, 2014/06/25