[linux.git] / kernel / debug / kdb / kdb_private.h

#ifndef _KDBPRIVATE_H
#define _KDBPRIVATE_H

/*
 * Kernel Debugger Architecture Independent Private 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) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
 * Copyright (c) 2009 Wind River Systems, Inc.  All Rights Reserved.
 */

#include <linux/kgdb.h>
#include "../debug_core.h"

/* Kernel Debugger Command codes.  Must not overlap with error codes. */
#define KDB_CMD_GO	(-1001)
#define KDB_CMD_CPU	(-1002)
#define KDB_CMD_SS	(-1003)
#define KDB_CMD_SSB	(-1004)
#define KDB_CMD_KGDB (-1005)
#define KDB_CMD_KGDB2 (-1006)

/* Internal debug flags */
#define KDB_DEBUG_FLAG_BP	0x0002	/* Breakpoint subsystem debug */
#define KDB_DEBUG_FLAG_BB_SUMM	0x0004	/* Basic block analysis, summary only */
#define KDB_DEBUG_FLAG_AR	0x0008	/* Activation record, generic */
#define KDB_DEBUG_FLAG_ARA	0x0010	/* Activation record, arch specific */
#define KDB_DEBUG_FLAG_BB	0x0020	/* All basic block analysis */
#define KDB_DEBUG_FLAG_STATE	0x0040	/* State flags */
#define KDB_DEBUG_FLAG_MASK	0xffff	/* All debug flags */
#define KDB_DEBUG_FLAG_SHIFT	16	/* Shift factor for dbflags */

#define KDB_DEBUG(flag)	(kdb_flags & \
	(KDB_DEBUG_FLAG_##flag << KDB_DEBUG_FLAG_SHIFT))
#define KDB_DEBUG_STATE(text, value) if (KDB_DEBUG(STATE)) \
		kdb_print_state(text, value)

#if BITS_PER_LONG == 32

#define KDB_PLATFORM_ENV	"BYTESPERWORD=4"

#define kdb_machreg_fmt		"0x%lx"
#define kdb_machreg_fmt0	"0x%08lx"
#define kdb_bfd_vma_fmt		"0x%lx"
#define kdb_bfd_vma_fmt0	"0x%08lx"
#define kdb_elfw_addr_fmt	"0x%x"
#define kdb_elfw_addr_fmt0	"0x%08x"
#define kdb_f_count_fmt		"%d"

#elif BITS_PER_LONG == 64

#define KDB_PLATFORM_ENV	"BYTESPERWORD=8"

#define kdb_machreg_fmt		"0x%lx"
#define kdb_machreg_fmt0	"0x%016lx"
#define kdb_bfd_vma_fmt		"0x%lx"
#define kdb_bfd_vma_fmt0	"0x%016lx"
#define kdb_elfw_addr_fmt	"0x%x"
#define kdb_elfw_addr_fmt0	"0x%016x"
#define kdb_f_count_fmt		"%ld"

#endif

/*
 * KDB_MAXBPT describes the total number of breakpoints
 * supported by this architecure.
 */
#define KDB_MAXBPT	16

/* Symbol table format returned by kallsyms. */
typedef struct __ksymtab {
		unsigned long value;	/* Address of symbol */
		const char *mod_name;	/* Module containing symbol or
					 * "kernel" */
		unsigned long mod_start;
		unsigned long mod_end;
		const char *sec_name;	/* Section containing symbol */
		unsigned long sec_start;
		unsigned long sec_end;
		const char *sym_name;	/* Full symbol name, including
					 * any version */
		unsigned long sym_start;
		unsigned long sym_end;
		} kdb_symtab_t;
extern int kallsyms_symbol_next(char *prefix_name, int flag);
extern int kallsyms_symbol_complete(char *prefix_name, int max_len);

/* Exported Symbols for kernel loadable modules to use. */
extern int kdb_getarea_size(void *, unsigned long, size_t);
extern int kdb_putarea_size(unsigned long, void *, size_t);

/*
 * Like get_user and put_user, kdb_getarea and kdb_putarea take variable
 * names, not pointers.  The underlying *_size functions take pointers.
 */
#define kdb_getarea(x, addr) kdb_getarea_size(&(x), addr, sizeof((x)))
#define kdb_putarea(addr, x) kdb_putarea_size(addr, &(x), sizeof((x)))

extern int kdb_getphysword(unsigned long *word,
			unsigned long addr, size_t size);
extern int kdb_getword(unsigned long *, unsigned long, size_t);
extern int kdb_putword(unsigned long, unsigned long, size_t);

extern int kdbgetularg(const char *, unsigned long *);
extern char *kdbgetenv(const char *);
extern int kdbgetaddrarg(int, const char **, int*, unsigned long *,
			 long *, char **);
extern int kdbgetsymval(const char *, kdb_symtab_t *);
extern int kdbnearsym(unsigned long, kdb_symtab_t *);
extern void kdbnearsym_cleanup(void);
extern char *kdb_strdup(const char *str, gfp_t type);
extern void kdb_symbol_print(unsigned long, const kdb_symtab_t *, unsigned int);

/* Routine for debugging the debugger state. */
extern void kdb_print_state(const char *, int);

extern int kdb_state;
#define KDB_STATE_KDB		0x00000001	/* Cpu is inside kdb */
#define KDB_STATE_LEAVING	0x00000002	/* Cpu is leaving kdb */
#define KDB_STATE_CMD		0x00000004	/* Running a kdb command */
#define KDB_STATE_KDB_CONTROL	0x00000008	/* This cpu is under
						 * kdb control */
#define KDB_STATE_HOLD_CPU	0x00000010	/* Hold this cpu inside kdb */
#define KDB_STATE_DOING_SS	0x00000020	/* Doing ss command */
#define KDB_STATE_DOING_SSB	0x00000040	/* Doing ssb command,
						 * DOING_SS is also set */
#define KDB_STATE_SSBPT		0x00000080	/* Install breakpoint
						 * after one ss, independent of
						 * DOING_SS */
#define KDB_STATE_REENTRY	0x00000100	/* Valid re-entry into kdb */
#define KDB_STATE_SUPPRESS	0x00000200	/* Suppress error messages */
#define KDB_STATE_PAGER		0x00000400	/* pager is available */
#define KDB_STATE_GO_SWITCH	0x00000800	/* go is switching
						 * back to initial cpu */
#define KDB_STATE_PRINTF_LOCK	0x00001000	/* Holds kdb_printf lock */
#define KDB_STATE_WAIT_IPI	0x00002000	/* Waiting for kdb_ipi() NMI */
#define KDB_STATE_RECURSE	0x00004000	/* Recursive entry to kdb */
#define KDB_STATE_IP_ADJUSTED	0x00008000	/* Restart IP has been
						 * adjusted */
#define KDB_STATE_GO1		0x00010000	/* go only releases one cpu */
#define KDB_STATE_KEYBOARD	0x00020000	/* kdb entered via
						 * keyboard on this cpu */
#define KDB_STATE_KEXEC		0x00040000	/* kexec issued */
#define KDB_STATE_DOING_KGDB	0x00080000	/* kgdb enter now issued */
#define KDB_STATE_DOING_KGDB2	0x00100000	/* kgdb enter now issued */
#define KDB_STATE_KGDB_TRANS	0x00200000	/* Transition to kgdb */
#define KDB_STATE_ARCH		0xff000000	/* Reserved for arch
						 * specific use */

#define KDB_STATE(flag) (kdb_state & KDB_STATE_##flag)
#define KDB_STATE_SET(flag) ((void)(kdb_state |= KDB_STATE_##flag))
#define KDB_STATE_CLEAR(flag) ((void)(kdb_state &= ~KDB_STATE_##flag))

extern int kdb_nextline; /* Current number of lines displayed */

typedef struct _kdb_bp {
	unsigned long	bp_addr;	/* Address breakpoint is present at */
	unsigned int	bp_free:1;	/* This entry is available */
	unsigned int	bp_enabled:1;	/* Breakpoint is active in register */
	unsigned int	bp_type:4;	/* Uses hardware register */
	unsigned int	bp_installed:1;	/* Breakpoint is installed */
	unsigned int	bp_delay:1;	/* Do delayed bp handling */
	unsigned int	bp_delayed:1;	/* Delayed breakpoint */
	unsigned int	bph_length;	/* HW break length */
} kdb_bp_t;

#ifdef CONFIG_KGDB_KDB
extern kdb_bp_t kdb_breakpoints[/* KDB_MAXBPT */];

/* The KDB shell command table */
typedef struct _kdbtab {
	char    *cmd_name;		/* Command name */
	kdb_func_t cmd_func;		/* Function to execute command */
	char    *cmd_usage;		/* Usage String for this command */
	char    *cmd_help;		/* Help message for this command */
	short    cmd_flags;		/* Parsing flags */
	short    cmd_minlen;		/* Minimum legal # command
					 * chars required */
	kdb_repeat_t cmd_repeat;	/* Does command auto repeat on enter? */
} kdbtab_t;

extern int kdb_bt(int, const char **);	/* KDB display back trace */

/* KDB breakpoint management functions */
extern void kdb_initbptab(void);
extern void kdb_bp_install(struct pt_regs *);
extern void kdb_bp_remove(void);

typedef enum {
	KDB_DB_BPT,	/* Breakpoint */
	KDB_DB_SS,	/* Single-step trap */
	KDB_DB_SSB,	/* Single step to branch */
	KDB_DB_SSBPT,	/* Single step over breakpoint */
	KDB_DB_NOBPT	/* Spurious breakpoint */
} kdb_dbtrap_t;

extern int kdb_main_loop(kdb_reason_t, kdb_reason_t,
			 int, kdb_dbtrap_t, struct pt_regs *);

/* Miscellaneous functions and data areas */
extern int kdb_grepping_flag;
extern char kdb_grep_string[];
extern int kdb_grep_leading;
extern int kdb_grep_trailing;
extern char *kdb_cmds[];
extern void kdb_syslog_data(char *syslog_data[]);
extern unsigned long kdb_task_state_string(const char *);
extern char kdb_task_state_char (const struct task_struct *);
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 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);
#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 */
extern char *kdb_getstr(char *, size_t, char *);

/* Defines for kdb_symbol_print */
#define KDB_SP_SPACEB	0x0001		/* Space before string */
#define KDB_SP_SPACEA	0x0002		/* Space after string */
#define KDB_SP_PAREN	0x0004		/* Parenthesis around string */
#define KDB_SP_VALUE	0x0008		/* Print the value of the address */
#define KDB_SP_SYMSIZE	0x0010		/* Print the size of the symbol */
#define KDB_SP_NEWLINE	0x0020		/* Newline after string */
#define KDB_SP_DEFAULT (KDB_SP_VALUE|KDB_SP_PAREN)

#define KDB_TSK(cpu) kgdb_info[cpu].task
#define KDB_TSKREGS(cpu) kgdb_info[cpu].debuggerinfo

extern struct task_struct *kdb_curr_task(int);

#define kdb_task_has_cpu(p) (task_curr(p))

/* Simplify coexistence with NPTL */
#define	kdb_do_each_thread(g, p) do_each_thread(g, p)
#define	kdb_while_each_thread(g, p) while_each_thread(g, p)

#define GFP_KDB (in_interrupt() ? GFP_ATOMIC : GFP_KERNEL)

extern void *debug_kmalloc(size_t size, gfp_t flags);
extern void debug_kfree(void *);
extern void debug_kusage(void);

extern void kdb_set_current_task(struct task_struct *);
extern struct task_struct *kdb_current_task;
#ifdef CONFIG_MODULES
extern struct list_head *kdb_modules;
#endif /* CONFIG_MODULES */

extern char kdb_prompt_str[];

#define	KDB_WORD_SIZE	((int)sizeof(unsigned long))

#endif /* CONFIG_KGDB_KDB */
#endif	/* !_KDBPRIVATE_H */
Commit	Line	Data
5d5314d6 JW	1	#ifndef _KDBPRIVATE_H
	2	#define _KDBPRIVATE_H
	3
	4	/*
	5	* Kernel Debugger Architecture Independent Private Headers
	6	*
	7	* This file is subject to the terms and conditions of the GNU General Public
	8	* License. See the file "COPYING" in the main directory of this archive
	9	* for more details.
	10	*
	11	* Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
	12	* Copyright (c) 2009 Wind River Systems, Inc. All Rights Reserved.
	13	*/
	14
	15	#include <linux/kgdb.h>
	16	#include "../debug_core.h"
	17
5d5314d6 JW	18	/* Kernel Debugger Command codes. Must not overlap with error codes. */
	19	#define KDB_CMD_GO (-1001)
	20	#define KDB_CMD_CPU (-1002)
	21	#define KDB_CMD_SS (-1003)
	22	#define KDB_CMD_SSB (-1004)
	23	#define KDB_CMD_KGDB (-1005)
	24	#define KDB_CMD_KGDB2 (-1006)
	25
	26	/* Internal debug flags */
	27	#define KDB_DEBUG_FLAG_BP 0x0002 /* Breakpoint subsystem debug */
	28	#define KDB_DEBUG_FLAG_BB_SUMM 0x0004 /* Basic block analysis, summary only */
	29	#define KDB_DEBUG_FLAG_AR 0x0008 /* Activation record, generic */
	30	#define KDB_DEBUG_FLAG_ARA 0x0010 /* Activation record, arch specific */
	31	#define KDB_DEBUG_FLAG_BB 0x0020 /* All basic block analysis */
	32	#define KDB_DEBUG_FLAG_STATE 0x0040 /* State flags */
	33	#define KDB_DEBUG_FLAG_MASK 0xffff /* All debug flags */
	34	#define KDB_DEBUG_FLAG_SHIFT 16 /* Shift factor for dbflags */
	35
	36	#define KDB_DEBUG(flag) (kdb_flags & \
	37	(KDB_DEBUG_FLAG_##flag << KDB_DEBUG_FLAG_SHIFT))
	38	#define KDB_DEBUG_STATE(text, value) if (KDB_DEBUG(STATE)) \
	39	kdb_print_state(text, value)
	40
	41	#if BITS_PER_LONG == 32
	42
	43	#define KDB_PLATFORM_ENV "BYTESPERWORD=4"
	44
	45	#define kdb_machreg_fmt "0x%lx"
	46	#define kdb_machreg_fmt0 "0x%08lx"
	47	#define kdb_bfd_vma_fmt "0x%lx"
	48	#define kdb_bfd_vma_fmt0 "0x%08lx"
	49	#define kdb_elfw_addr_fmt "0x%x"
	50	#define kdb_elfw_addr_fmt0 "0x%08x"
	51	#define kdb_f_count_fmt "%d"
	52
	53	#elif BITS_PER_LONG == 64
	54
	55	#define KDB_PLATFORM_ENV "BYTESPERWORD=8"
	56
	57	#define kdb_machreg_fmt "0x%lx"
	58	#define kdb_machreg_fmt0 "0x%016lx"
	59	#define kdb_bfd_vma_fmt "0x%lx"
	60	#define kdb_bfd_vma_fmt0 "0x%016lx"
	61	#define kdb_elfw_addr_fmt "0x%x"
	62	#define kdb_elfw_addr_fmt0 "0x%016x"
	63	#define kdb_f_count_fmt "%ld"
	64
	65	#endif
	66
	67	/*
	68	* KDB_MAXBPT describes the total number of breakpoints
	69	* supported by this architecure.
	70	*/
	71	#define KDB_MAXBPT 16
	72
5d5314d6 JW	73	/* Symbol table format returned by kallsyms. */
	74	typedef struct __ksymtab {
	75	unsigned long value; /* Address of symbol */
	76	const char mod_name; / Module containing symbol or
	77	* "kernel" */
	78	unsigned long mod_start;
	79	unsigned long mod_end;
	80	const char sec_name; / Section containing symbol */
	81	unsigned long sec_start;
	82	unsigned long sec_end;
	83	const char sym_name; / Full symbol name, including
	84	* any version */
	85	unsigned long sym_start;
	86	unsigned long sym_end;
	87	} kdb_symtab_t;
	88	extern int kallsyms_symbol_next(char *prefix_name, int flag);
	89	extern int kallsyms_symbol_complete(char *prefix_name, int max_len);
	90
	91	/* Exported Symbols for kernel loadable modules to use. */
5d5314d6 JW	92	extern int kdb_getarea_size(void *, unsigned long, size_t);
	93	extern int kdb_putarea_size(unsigned long, void *, size_t);
	94
	95	/*
	96	* Like get_user and put_user, kdb_getarea and kdb_putarea take variable
	97	* names, not pointers. The underlying *_size functions take pointers.
	98	*/
	99	#define kdb_getarea(x, addr) kdb_getarea_size(&(x), addr, sizeof((x)))
	100	#define kdb_putarea(addr, x) kdb_putarea_size(addr, &(x), sizeof((x)))
	101
	102	extern int kdb_getphysword(unsigned long *word,
	103	unsigned long addr, size_t size);
	104	extern int kdb_getword(unsigned long *, unsigned long, size_t);
	105	extern int kdb_putword(unsigned long, unsigned long, size_t);
	106
	107	extern int kdbgetularg(const char , unsigned long );
5d5314d6	108	extern char kdbgetenv(const char );
5d5314d6 JW	109	extern int kdbgetaddrarg(int, const char *, int, unsigned long *,
	110	long , char *);
	111	extern int kdbgetsymval(const char , kdb_symtab_t );
	112	extern int kdbnearsym(unsigned long, kdb_symtab_t *);
	113	extern void kdbnearsym_cleanup(void);
	114	extern char kdb_strdup(const char str, gfp_t type);
	115	extern void kdb_symbol_print(unsigned long, const kdb_symtab_t *, unsigned int);
	116
	117	/* Routine for debugging the debugger state. */
	118	extern void kdb_print_state(const char *, int);
	119
	120	extern int kdb_state;
	121	#define KDB_STATE_KDB 0x00000001 /* Cpu is inside kdb */
	122	#define KDB_STATE_LEAVING 0x00000002 /* Cpu is leaving kdb */
	123	#define KDB_STATE_CMD 0x00000004 /* Running a kdb command */
	124	#define KDB_STATE_KDB_CONTROL 0x00000008 /* This cpu is under
	125	* kdb control */
	126	#define KDB_STATE_HOLD_CPU 0x00000010 /* Hold this cpu inside kdb */
	127	#define KDB_STATE_DOING_SS 0x00000020 /* Doing ss command */
	128	#define KDB_STATE_DOING_SSB 0x00000040 /* Doing ssb command,
	129	* DOING_SS is also set */
	130	#define KDB_STATE_SSBPT 0x00000080 /* Install breakpoint
	131	* after one ss, independent of
	132	* DOING_SS */
	133	#define KDB_STATE_REENTRY 0x00000100 /* Valid re-entry into kdb */
	134	#define KDB_STATE_SUPPRESS 0x00000200 /* Suppress error messages */
	135	#define KDB_STATE_PAGER 0x00000400 /* pager is available */
	136	#define KDB_STATE_GO_SWITCH 0x00000800 /* go is switching
	137	* back to initial cpu */
	138	#define KDB_STATE_PRINTF_LOCK 0x00001000 /* Holds kdb_printf lock */
	139	#define KDB_STATE_WAIT_IPI 0x00002000 /* Waiting for kdb_ipi() NMI */
	140	#define KDB_STATE_RECURSE 0x00004000 /* Recursive entry to kdb */
	141	#define KDB_STATE_IP_ADJUSTED 0x00008000 /* Restart IP has been
	142	* adjusted */
	143	#define KDB_STATE_GO1 0x00010000 /* go only releases one cpu */
	144	#define KDB_STATE_KEYBOARD 0x00020000 /* kdb entered via
	145	* keyboard on this cpu */
	146	#define KDB_STATE_KEXEC 0x00040000 /* kexec issued */
	147	#define KDB_STATE_DOING_KGDB 0x00080000 /* kgdb enter now issued */
	148	#define KDB_STATE_DOING_KGDB2 0x00100000 /* kgdb enter now issued */
	149	#define KDB_STATE_KGDB_TRANS 0x00200000 /* Transition to kgdb */
	150	#define KDB_STATE_ARCH 0xff000000 /* Reserved for arch
	151	* specific use */
	152
	153	#define KDB_STATE(flag) (kdb_state & KDB_STATE_##flag)
	154	#define KDB_STATE_SET(flag) ((void)(kdb_state \|= KDB_STATE_##flag))
	155	#define KDB_STATE_CLEAR(flag) ((void)(kdb_state &= ~KDB_STATE_##flag))
	156
	157	extern int kdb_nextline; /* Current number of lines displayed */
	158
	159	typedef struct _kdb_bp {
	160	unsigned long bp_addr; /* Address breakpoint is present at */
	161	unsigned int bp_free:1; /* This entry is available */
	162	unsigned int bp_enabled:1; /* Breakpoint is active in register */
	163	unsigned int bp_type:4; /* Uses hardware register */
	164	unsigned int bp_installed:1; /* Breakpoint is installed */
	165	unsigned int bp_delay:1; /* Do delayed bp handling */
	166	unsigned int bp_delayed:1; /* Delayed breakpoint */
	167	unsigned int bph_length; /* HW break length */
	168	} kdb_bp_t;
	169
	170	#ifdef CONFIG_KGDB_KDB
	171	extern kdb_bp_t kdb_breakpoints[/* KDB_MAXBPT */];
	172
173	/* The KDB shell command table */
174	typedef struct _kdbtab {
175	char cmd_name; / Command name */
176	kdb_func_t cmd_func; /* Function to execute command */
177	char cmd_usage; / Usage String for this command */
178	char cmd_help; / Help message for this command */
179	short cmd_flags; /* Parsing flags */
180	short cmd_minlen; /* Minimum legal # command
181	* chars required */
182	kdb_repeat_t cmd_repeat; /* Does command auto repeat on enter? */
183	} kdbtab_t;
184
185	extern int kdb_bt(int, const char *); / KDB display back trace */
186
187	/* KDB breakpoint management functions */
188	extern void kdb_initbptab(void);
189	extern void kdb_bp_install(struct pt_regs *);
190	extern void kdb_bp_remove(void);
191
192	typedef enum {
193	KDB_DB_BPT, /* Breakpoint */
194	KDB_DB_SS, /* Single-step trap */
195	KDB_DB_SSB, /* Single step to branch */
196	KDB_DB_SSBPT, /* Single step over breakpoint */
197	KDB_DB_NOBPT /* Spurious breakpoint */
198	} kdb_dbtrap_t;
199
200	extern int kdb_main_loop(kdb_reason_t, kdb_reason_t,
201	int, kdb_dbtrap_t, struct pt_regs *);
202
203	/* Miscellaneous functions and data areas */
204	extern int kdb_grepping_flag;
205	extern char kdb_grep_string[];
206	extern int kdb_grep_leading;
207	extern int kdb_grep_trailing;
208	extern char *kdb_cmds[];
209	extern void kdb_syslog_data(char *syslog_data[]);
210	extern unsigned long kdb_task_state_string(const char *);
211	extern char kdb_task_state_char (const struct task_struct *);
212	extern unsigned long kdb_task_state(const struct task_struct *p,
213	unsigned long mask);
214	extern void kdb_ps_suppressed(void);
215	extern void kdb_ps1(const struct task_struct *p);
5d5314d6 JW	216	extern void kdb_print_nameval(const char *name, unsigned long val);
	217	extern void kdb_send_sig_info(struct task_struct p, struct siginfo info);
	218	extern void kdb_meminfo_proc_show(void);
b590cddf	219	#ifdef CONFIG_KALLSYMS
5d5314d6	220	extern const char kdb_walk_kallsyms(loff_t pos);
b590cddf JW	221	#else /* ! CONFIG_KALLSYMS */
	222	static inline const char kdb_walk_kallsyms(loff_t pos)
	223	{
	224	return NULL;
	225	}
	226	#endif /* ! CONFIG_KALLSYMS */
5d5314d6 JW	227	extern char kdb_getstr(char , size_t, char *);
	228
	229	/* Defines for kdb_symbol_print */
	230	#define KDB_SP_SPACEB 0x0001 /* Space before string */
	231	#define KDB_SP_SPACEA 0x0002 /* Space after string */
	232	#define KDB_SP_PAREN 0x0004 /* Parenthesis around string */
	233	#define KDB_SP_VALUE 0x0008 /* Print the value of the address */
	234	#define KDB_SP_SYMSIZE 0x0010 /* Print the size of the symbol */
	235	#define KDB_SP_NEWLINE 0x0020 /* Newline after string */
	236	#define KDB_SP_DEFAULT (KDB_SP_VALUE\|KDB_SP_PAREN)
	237
	238	#define KDB_TSK(cpu) kgdb_info[cpu].task
	239	#define KDB_TSKREGS(cpu) kgdb_info[cpu].debuggerinfo
	240
	241	extern struct task_struct *kdb_curr_task(int);
	242
	243	#define kdb_task_has_cpu(p) (task_curr(p))
	244
	245	/* Simplify coexistence with NPTL */
	246	#define kdb_do_each_thread(g, p) do_each_thread(g, p)
	247	#define kdb_while_each_thread(g, p) while_each_thread(g, p)
	248
	249	#define GFP_KDB (in_interrupt() ? GFP_ATOMIC : GFP_KERNEL)
	250
	251	extern void *debug_kmalloc(size_t size, gfp_t flags);
	252	extern void debug_kfree(void *);
	253	extern void debug_kusage(void);
	254
	255	extern void kdb_set_current_task(struct task_struct *);
	256	extern struct task_struct *kdb_current_task;
	257	#ifdef CONFIG_MODULES
	258	extern struct list_head *kdb_modules;
	259	#endif /* CONFIG_MODULES */
	260
	261	extern char kdb_prompt_str[];
	262
	263	#define KDB_WORD_SIZE ((int)sizeof(unsigned long))
	264
	265	#endif /* CONFIG_KGDB_KDB */
	266	#endif /* !_KDBPRIVATE_H */