mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 06:34:11 +08:00
91b152aa85
Fix the following sparse warnings:
kdb_main.c:328:5: warning: symbol 'kdbgetu64arg' was not declared. Should it be static?
kgdboc.c:246:12: warning: symbol 'kgdboc_early_init' was not declared. Should it be static?
kgdb.c:652:26: warning: incorrect type in argument 1 (different address spaces)
kgdb.c:652:26: expected void const *ptr
kgdb.c:652:26: got struct perf_event *[noderef] <asn:3>*pev
The one in kgdb.c required the (void * __force) because of the return
code from register_wide_hw_breakpoint looking like:
return (void __percpu __force *)ERR_PTR(err);
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
173 lines
5.3 KiB
C
173 lines
5.3 KiB
C
#ifndef _KDB_H
|
|
#define _KDB_H
|
|
|
|
/*
|
|
* Kernel Debugger Architecture Independent Global Headers
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Copyright (c) 2000-2007 Silicon Graphics, Inc. All Rights Reserved.
|
|
* Copyright (C) 2000 Stephane Eranian <eranian@hpl.hp.com>
|
|
* Copyright (C) 2009 Jason Wessel <jason.wessel@windriver.com>
|
|
*/
|
|
|
|
#ifdef CONFIG_KGDB_KDB
|
|
#include <linux/init.h>
|
|
#include <linux/sched.h>
|
|
#include <asm/atomic.h>
|
|
|
|
#define KDB_POLL_FUNC_MAX 5
|
|
extern int kdb_poll_idx;
|
|
|
|
/*
|
|
* kdb_initial_cpu is initialized to -1, and is set to the cpu
|
|
* number whenever the kernel debugger is entered.
|
|
*/
|
|
extern int kdb_initial_cpu;
|
|
extern atomic_t kdb_event;
|
|
|
|
/* Types and messages used for dynamically added kdb shell commands */
|
|
|
|
#define KDB_MAXARGS 16 /* Maximum number of arguments to a function */
|
|
|
|
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 **);
|
|
|
|
/* KDB return codes from a command or internal kdb function */
|
|
#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)
|
|
|
|
/*
|
|
* kdb_diemsg
|
|
*
|
|
* Contains a pointer to the last string supplied to the
|
|
* kernel 'die' panic function.
|
|
*/
|
|
extern const char *kdb_diemsg;
|
|
|
|
#define KDB_FLAG_EARLYKDB (1 << 0) /* set from boot parameter kdb=early */
|
|
#define KDB_FLAG_CATASTROPHIC (1 << 1) /* A catastrophic event has occurred */
|
|
#define KDB_FLAG_CMD_INTERRUPT (1 << 2) /* Previous command was interrupted */
|
|
#define KDB_FLAG_NOIPI (1 << 3) /* Do not send IPIs */
|
|
#define KDB_FLAG_ONLY_DO_DUMP (1 << 4) /* Only do a dump, used when
|
|
* kdb is off */
|
|
#define KDB_FLAG_NO_CONSOLE (1 << 5) /* No console is available,
|
|
* kdb is disabled */
|
|
#define KDB_FLAG_NO_VT_CONSOLE (1 << 6) /* No VT console is available, do
|
|
* not use keyboard */
|
|
#define KDB_FLAG_NO_I8042 (1 << 7) /* No i8042 chip is available, do
|
|
* not use keyboard */
|
|
|
|
extern int kdb_flags; /* Global flags, see kdb_state for per cpu state */
|
|
|
|
extern void kdb_save_flags(void);
|
|
extern void kdb_restore_flags(void);
|
|
|
|
#define KDB_FLAG(flag) (kdb_flags & KDB_FLAG_##flag)
|
|
#define KDB_FLAG_SET(flag) ((void)(kdb_flags |= KDB_FLAG_##flag))
|
|
#define KDB_FLAG_CLEAR(flag) ((void)(kdb_flags &= ~KDB_FLAG_##flag))
|
|
|
|
/*
|
|
* External entry point for the kernel debugger. The pt_regs
|
|
* at the time of entry are supplied along with the reason for
|
|
* entry to the kernel debugger.
|
|
*/
|
|
|
|
typedef enum {
|
|
KDB_REASON_ENTER = 1, /* KDB_ENTER() trap/fault - regs valid */
|
|
KDB_REASON_ENTER_SLAVE, /* KDB_ENTER_SLAVE() trap/fault - regs valid */
|
|
KDB_REASON_BREAK, /* Breakpoint inst. - regs valid */
|
|
KDB_REASON_DEBUG, /* Debug Fault - regs valid */
|
|
KDB_REASON_OOPS, /* Kernel Oops - regs valid */
|
|
KDB_REASON_SWITCH, /* CPU switch - regs valid*/
|
|
KDB_REASON_KEYBOARD, /* Keyboard entry - regs valid */
|
|
KDB_REASON_NMI, /* Non-maskable interrupt; regs valid */
|
|
KDB_REASON_RECURSE, /* Recursive entry to kdb;
|
|
* regs probably valid */
|
|
KDB_REASON_SSTEP, /* Single Step trap. - regs valid */
|
|
} kdb_reason_t;
|
|
|
|
extern int kdb_trap_printk;
|
|
extern int vkdb_printf(const char *fmt, va_list args)
|
|
__attribute__ ((format (printf, 1, 0)));
|
|
extern int kdb_printf(const char *, ...)
|
|
__attribute__ ((format (printf, 1, 2)));
|
|
typedef int (*kdb_printf_t)(const char *, ...)
|
|
__attribute__ ((format (printf, 1, 2)));
|
|
|
|
extern void kdb_init(int level);
|
|
|
|
/* Access to kdb specific polling devices */
|
|
typedef int (*get_char_func)(void);
|
|
extern get_char_func kdb_poll_funcs[];
|
|
extern int kdb_get_kbd_char(void);
|
|
|
|
static inline
|
|
int kdb_process_cpu(const struct task_struct *p)
|
|
{
|
|
unsigned int cpu = task_thread_info(p)->cpu;
|
|
if (cpu > num_possible_cpus())
|
|
cpu = 0;
|
|
return cpu;
|
|
}
|
|
|
|
/* kdb access to register set for stack dumping */
|
|
extern struct pt_regs *kdb_current_regs;
|
|
#ifdef CONFIG_KALLSYMS
|
|
extern const char *kdb_walk_kallsyms(loff_t *pos);
|
|
#else /* ! CONFIG_KALLSYMS */
|
|
static inline const char *kdb_walk_kallsyms(loff_t *pos)
|
|
{
|
|
return NULL;
|
|
}
|
|
#endif /* ! CONFIG_KALLSYMS */
|
|
|
|
/* Dynamic kdb shell command registration */
|
|
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 *);
|
|
#else /* ! CONFIG_KGDB_KDB */
|
|
#define kdb_printf(...)
|
|
#define kdb_init(x)
|
|
#define kdb_register(...)
|
|
#define kdb_register_repeat(...)
|
|
#define kdb_uregister(x)
|
|
#endif /* CONFIG_KGDB_KDB */
|
|
enum {
|
|
KDB_NOT_INITIALIZED,
|
|
KDB_INIT_EARLY,
|
|
KDB_INIT_FULL,
|
|
};
|
|
|
|
extern int kdbgetintenv(const char *, int *);
|
|
extern int kdb_set(int, const char **);
|
|
|
|
#endif /* !_KDB_H */
|