mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 21:30:53 +07:00
15a42a9bc9
We're about to add more options for command behaviour, so let's expand the meaning of kdb_repeat_t. So far we just do various renames, there should be no functional changes. Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> Cc: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
260 lines
9.4 KiB
C
260 lines
9.4 KiB
C
#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_KGDB (-1005)
|
|
|
|
/* 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 int kdbgetu64arg(const char *, u64 *);
|
|
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_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_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_minlen; /* Minimum legal # command
|
|
* chars required */
|
|
kdb_cmdflags_t cmd_flags; /* Command behaviour flags */
|
|
} 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_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 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);
|
|
extern char *kdb_getstr(char *, size_t, char *);
|
|
extern void kdb_gdb_state_pass(char *buf);
|
|
|
|
/* 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_KDB_KEYBOARD
|
|
extern void kdb_kbd_cleanup_state(void);
|
|
#else /* ! CONFIG_KDB_KEYBOARD */
|
|
#define kdb_kbd_cleanup_state()
|
|
#endif /* ! CONFIG_KDB_KEYBOARD */
|
|
|
|
#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 */
|