kdb: Allow kernel loadable modules to add kdb shell functions
In order to allow kernel modules to dynamically add a command to the
kdb shell the kdb_register, kdb_register_repeat, kdb_unregister, and
kdb_printf need to be exported as GPL symbols.
Any kernel module that adds a dynamic kdb shell function should only
need to include linux/kdb.h.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
diff --git a/kernel/debug/kdb/kdb_io.c b/kernel/debug/kdb/kdb_io.c
index c9b7f4f9..96fdaac 100644
--- a/kernel/debug/kdb/kdb_io.c
+++ b/kernel/debug/kdb/kdb_io.c
@@ -823,4 +823,4 @@
return r;
}
-
+EXPORT_SYMBOL_GPL(kdb_printf);
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index caf057a..5448990 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -2783,6 +2783,8 @@
return 0;
}
+EXPORT_SYMBOL_GPL(kdb_register_repeat);
+
/*
* kdb_register - Compatibility register function for commands that do
@@ -2805,6 +2807,7 @@
return kdb_register_repeat(cmd, func, usage, help, minlen,
KDB_REPEAT_NONE);
}
+EXPORT_SYMBOL_GPL(kdb_register);
/*
* kdb_unregister - This function is used to unregister a kernel
@@ -2833,6 +2836,7 @@
/* Couldn't find it. */
return 1;
}
+EXPORT_SYMBOL_GPL(kdb_unregister);
/* Initialize the kdb command table. */
static void __init kdb_inittab(void)
diff --git a/kernel/debug/kdb/kdb_private.h b/kernel/debug/kdb/kdb_private.h
index be775f7..1921e6e 100644
--- a/kernel/debug/kdb/kdb_private.h
+++ b/kernel/debug/kdb/kdb_private.h
@@ -15,29 +15,6 @@
#include <linux/kgdb.h>
#include "../debug_core.h"
-/* Kernel Debugger Error codes. Must not overlap with command codes. */
-#define KDB_NOTFOUND (-1)
-#define KDB_ARGCOUNT (-2)
-#define KDB_BADWIDTH (-3)
-#define KDB_BADRADIX (-4)
-#define KDB_NOTENV (-5)
-#define KDB_NOENVVALUE (-6)
-#define KDB_NOTIMP (-7)
-#define KDB_ENVFULL (-8)
-#define KDB_ENVBUFFULL (-9)
-#define KDB_TOOMANYBPT (-10)
-#define KDB_TOOMANYDBREGS (-11)
-#define KDB_DUPBPT (-12)
-#define KDB_BPTNOTFOUND (-13)
-#define KDB_BADMODE (-14)
-#define KDB_BADINT (-15)
-#define KDB_INVADDRFMT (-16)
-#define KDB_BADREG (-17)
-#define KDB_BADCPUNUM (-18)
-#define KDB_BADLENGTH (-19)
-#define KDB_NOBP (-20)
-#define KDB_BADADDR (-21)
-
/* Kernel Debugger Command codes. Must not overlap with error codes. */
#define KDB_CMD_GO (-1001)
#define KDB_CMD_CPU (-1002)
@@ -93,17 +70,6 @@
*/
#define KDB_MAXBPT 16
-/* Maximum number of arguments to a function */
-#define KDB_MAXARGS 16
-
-typedef enum {
- KDB_REPEAT_NONE = 0, /* Do not repeat this command */
- KDB_REPEAT_NO_ARGS, /* Repeat the command without arguments */
- KDB_REPEAT_WITH_ARGS, /* Repeat the command including its arguments */
-} kdb_repeat_t;
-
-typedef int (*kdb_func_t)(int, const char **);
-
/* Symbol table format returned by kallsyms. */
typedef struct __ksymtab {
unsigned long value; /* Address of symbol */
@@ -123,11 +89,6 @@
extern int kallsyms_symbol_complete(char *prefix_name, int max_len);
/* Exported Symbols for kernel loadable modules to use. */
-extern int kdb_register(char *, kdb_func_t, char *, char *, short);
-extern int kdb_register_repeat(char *, kdb_func_t, char *, char *,
- short, kdb_repeat_t);
-extern int kdb_unregister(char *);
-
extern int kdb_getarea_size(void *, unsigned long, size_t);
extern int kdb_putarea_size(unsigned long, void *, size_t);