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-rw-r--r--kernel/debug/debug_core.c2
-rw-r--r--kernel/debug/debug_core.h2
-rw-r--r--kernel/debug/gdbstub.c22
-rw-r--r--kernel/debug/kdb/kdb_io.c13
-rw-r--r--kernel/debug/kdb/kdb_private.h1
5 files changed, 34 insertions, 6 deletions
diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c
index 1d71df66f3fa..1aed37b4c564 100644
--- a/kernel/debug/debug_core.c
+++ b/kernel/debug/debug_core.c
@@ -82,7 +82,7 @@ static int kgdb_use_con;
int dbg_switch_cpu;
/* Use kdb or gdbserver mode */
-static int dbg_kdb_mode = 1;
+int dbg_kdb_mode = 1;
static int __init opt_kgdb_con(char *str)
{
diff --git a/kernel/debug/debug_core.h b/kernel/debug/debug_core.h
index 44cf3de8cf9e..c5d753d80f67 100644
--- a/kernel/debug/debug_core.h
+++ b/kernel/debug/debug_core.h
@@ -66,9 +66,11 @@ extern void gdbstub_msg_write(const char *s, int len);
/* gdbstub functions used for kdb <-> gdbstub transition */
extern int gdbstub_state(struct kgdb_state *ks, char *cmd);
+extern int dbg_kdb_mode;
#ifdef CONFIG_KGDB_KDB
extern int kdb_stub(struct kgdb_state *ks);
+extern int kdb_parse(const char *cmdstr);
#else /* ! CONFIG_KGDB_KDB */
static inline int kdb_stub(struct kgdb_state *ks)
{
diff --git a/kernel/debug/gdbstub.c b/kernel/debug/gdbstub.c
index 3c000490a7dd..4b17b3269525 100644
--- a/kernel/debug/gdbstub.c
+++ b/kernel/debug/gdbstub.c
@@ -201,6 +201,9 @@ void gdbstub_msg_write(const char *s, int len)
int wcount;
int i;
+ if (len == 0)
+ len = strlen(s);
+
/* 'O'utput */
gdbmsgbuf[0] = 'O';
@@ -685,6 +688,25 @@ static void gdb_cmd_query(struct kgdb_state *ks)
kgdb_mem2hex(tmpstr, remcom_out_buffer, strlen(tmpstr));
}
break;
+#ifdef CONFIG_KGDB_KDB
+ case 'R':
+ if (strncmp(remcom_in_buffer, "qRcmd,", 6) == 0) {
+ int len = strlen(remcom_in_buffer + 6);
+
+ if ((len % 2) != 0) {
+ strcpy(remcom_out_buffer, "E01");
+ break;
+ }
+ kgdb_hex2mem(remcom_in_buffer + 6,
+ remcom_out_buffer, len);
+ len = len / 2;
+ remcom_out_buffer[len++] = 0;
+
+ kdb_parse(remcom_out_buffer);
+ strcpy(remcom_out_buffer, "OK");
+ }
+ break;
+#endif
}
}
diff --git a/kernel/debug/kdb/kdb_io.c b/kernel/debug/kdb/kdb_io.c
index 9e3cec7a925c..8339b291e8bc 100644
--- a/kernel/debug/kdb/kdb_io.c
+++ b/kernel/debug/kdb/kdb_io.c
@@ -21,6 +21,7 @@
#include <linux/smp.h>
#include <linux/nmi.h>
#include <linux/delay.h>
+#include <linux/kgdb.h>
#include <linux/kdb.h>
#include <linux/kallsyms.h>
#include "kdb_private.h"
@@ -669,10 +670,14 @@ kdb_printit:
* Write to all consoles.
*/
retlen = strlen(kdb_buffer);
- while (c) {
- c->write(c, kdb_buffer, retlen);
- touch_nmi_watchdog();
- c = c->next;
+ if (!dbg_kdb_mode && kgdb_connected) {
+ gdbstub_msg_write(kdb_buffer, retlen);
+ } else {
+ while (c) {
+ c->write(c, kdb_buffer, retlen);
+ touch_nmi_watchdog();
+ c = c->next;
+ }
}
if (logging) {
saved_loglevel = console_loglevel;
diff --git a/kernel/debug/kdb/kdb_private.h b/kernel/debug/kdb/kdb_private.h
index 69ed2eff3fea..97d3ba69775d 100644
--- a/kernel/debug/kdb/kdb_private.h
+++ b/kernel/debug/kdb/kdb_private.h
@@ -254,7 +254,6 @@ extern unsigned long kdb_task_state(const struct task_struct *p,
unsigned long mask);
extern void kdb_ps_suppressed(void);
extern void kdb_ps1(const struct task_struct *p);
-extern int kdb_parse(const char *cmdstr);
extern void kdb_print_nameval(const char *name, unsigned long val);
extern void kdb_send_sig_info(struct task_struct *p, struct siginfo *info);
extern void kdb_meminfo_proc_show(void);