#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 <[email protected]> * Copyright (C) 2009 Jason Wessel <[email protected]> */ #include <linux/list.h> /* Shifted versions of the command enable bits are be used if the command * has no arguments (see kdb_check_flags). This allows commands, such as * go, to have different permissions depending upon whether it is called * with an argument. */ #define KDB_ENABLE_NO_ARGS_SHIFT … kdb_cmdflags_t; kdb_func_t; /* The KDB shell command table */ kdbtab_t; #ifdef CONFIG_KGDB_KDB #include <linux/init.h> #include <linux/sched.h> #include <linux/atomic.h> #define KDB_POLL_FUNC_MAX … 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; /* Types and messages used for dynamically added kdb shell commands */ #define KDB_MAXARGS … /* KDB return codes from a command or internal kdb function */ #define KDB_NOTFOUND … #define KDB_ARGCOUNT … #define KDB_BADWIDTH … #define KDB_BADRADIX … #define KDB_NOTENV … #define KDB_NOENVVALUE … #define KDB_NOTIMP … #define KDB_ENVFULL … #define KDB_ENVBUFFULL … #define KDB_TOOMANYBPT … #define KDB_TOOMANYDBREGS … #define KDB_DUPBPT … #define KDB_BPTNOTFOUND … #define KDB_BADMODE … #define KDB_BADINT … #define KDB_INVADDRFMT … #define KDB_BADREG … #define KDB_BADCPUNUM … #define KDB_BADLENGTH … #define KDB_NOBP … #define KDB_BADADDR … #define KDB_NOPERM … /* * 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 … #define KDB_FLAG_CATASTROPHIC … #define KDB_FLAG_CMD_INTERRUPT … #define KDB_FLAG_NOIPI … #define KDB_FLAG_NO_CONSOLE … #define KDB_FLAG_NO_VT_CONSOLE … #define KDB_FLAG_NO_I8042 … extern unsigned 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) … #define KDB_FLAG_SET(flag) … #define KDB_FLAG_CLEAR(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. */ kdb_reason_t; enum kdb_msgsrc { … }; extern int kdb_trap_printk; extern int kdb_printf_cpu; extern __printf(2, 0) int vkdb_printf(enum kdb_msgsrc src, const char *fmt, va_list args); extern __printf(1, 2) int kdb_printf(const char *, ...); kdb_printf_t; extern void kdb_init(int level); /* Access to kdb specific polling devices */ get_char_func; 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) { … } extern void kdb_send_sig(struct task_struct *p, int sig); #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(kdbtab_t *cmd); extern void kdb_unregister(kdbtab_t *cmd); #else /* ! CONFIG_KGDB_KDB */ static inline __printf(1, 2) int kdb_printf(const char *fmt, ...) { return 0; } static inline void kdb_init(int level) {} static inline int kdb_register(kdbtab_t *cmd) { return 0; } static inline void kdb_unregister(kdbtab_t *cmd) {} #endif /* CONFIG_KGDB_KDB */ enum { … }; extern int kdbgetintenv(const char *, int *); extern int kdb_set(int, const char **); int kdb_lsmod(int argc, const char **argv); #endif /* !_KDB_H */
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