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[Qemu-devel] [patch] Report usermode gdb exit codes
From: |
Paul Brook |
Subject: |
[Qemu-devel] [patch] Report usermode gdb exit codes |
Date: |
Sun, 24 Apr 2005 14:52:46 +0100 |
User-agent: |
KMail/1.7.2 |
The attached patch makes qemu report the exit code to the attached gdb when
the guest process exits.
Paul
Index: gdbstub.c
===================================================================
RCS file: /cvsroot/qemu/qemu/gdbstub.c,v
retrieving revision 1.25
diff -u -p -r1.25 gdbstub.c
--- gdbstub.c 24 Apr 2005 10:07:11 -0000 1.25
+++ gdbstub.c 24 Apr 2005 13:42:02 -0000
@@ -656,6 +656,22 @@ gdb_handlesig (CPUState *env, int sig)
}
return sig;
}
+
+/* Tell the remote gdb that the process has exited. */
+void gdb_exit(CPUState *env, int code)
+{
+ GDBState *s;
+ char buf[4];
+
+ if (gdbserver_fd < 0)
+ return;
+
+ s = &gdbserver_state;
+
+ snprintf(buf, sizeof(buf), "W%02x", code);
+ put_packet(s, buf);
+}
+
#else
static int gdb_can_read(void *opaque)
{
Index: gdbstub.h
===================================================================
RCS file: /cvsroot/qemu/qemu/gdbstub.h,v
retrieving revision 1.1
diff -u -p -r1.1 gdbstub.h
--- gdbstub.h 17 Apr 2005 19:16:13 -0000 1.1
+++ gdbstub.h 24 Apr 2005 13:42:02 -0000
@@ -5,6 +5,7 @@
#ifdef CONFIG_USER_ONLY
int gdb_handlesig (CPUState *, int);
+void gdb_exit(CPUState *, int);
#endif
int gdbserver_start(int);
Index: linux-user/syscall.c
===================================================================
RCS file: /cvsroot/qemu/qemu/linux-user/syscall.c,v
retrieving revision 1.59
diff -u -p -r1.59 syscall.c
--- linux-user/syscall.c 23 Apr 2005 18:25:41 -0000 1.59
+++ linux-user/syscall.c 24 Apr 2005 13:42:02 -0000
@@ -1603,6 +1603,7 @@ long do_syscall(void *cpu_env, int num,
#ifdef HAVE_GPROF
_mcleanup();
#endif
+ gdb_exit(cpu_env, arg1);
/* XXX: should free thread stack and CPU env */
_exit(arg1);
ret = 0; /* avoid warning */
@@ -2409,6 +2410,7 @@ long do_syscall(void *cpu_env, int num,
#ifdef __NR_exit_group
/* new thread calls */
case TARGET_NR_exit_group:
+ gdb_exit(cpu_env, arg1);
ret = get_errno(exit_group(arg1));
break;
#endif
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