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lkcd_vmdump_v2_v3.h
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lkcd_vmdump_v2_v3.h
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/* lkcd_vmdump_v2_v3.h - core analysis suite
*
* Copyright (C) 1999, 2000, 2001, 2002 Mission Critical Linux, Inc.
* Copyright (C) 2002, 2003, 2004, 2005, 2006 David Anderson
* Copyright (C) 2002, 2003, 2004, 2005, 2006 Red Hat, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
/*
* Kernel header file for Linux crash dumps.
*
* Created by: Matt Robinson ([email protected])
*
* Copyright 1999 Silicon Graphics, Inc. All rights reserved.
*
*/
/* This header file includes all structure definitions for crash dumps. */
#ifndef _VMDUMP_H
#define _VMDUMP_H
/* necessary header files */
#ifndef MCLX
#include <linux/utsname.h> /* for utsname structure */
#include <asm/vmdump.h> /* for architecture-specific header */
#endif
#if defined(ARM) || defined(X86) || defined(PPC) || defined(S390) || \
defined(S390X) || defined(ARM64) || defined(MIPS) || \
defined(MIPS64) || defined(SPARC64) || defined(RISCV64)
/*
* Kernel header file for Linux crash dumps.
*
* Created by: Matt Robinson ([email protected])
*
* Copyright 1999 Silicon Graphics, Inc. All rights reserved.
*
*/
/* This header file holds the architecture specific crash dump header */
#ifndef _ASM_VMDUMP_H
#define _ASM_VMDUMP_H
/* necessary header files */
typedef unsigned int u32;
#include <asm/ptrace.h> /* for pt_regs */
/* definitions */
#define DUMP_ASM_MAGIC_NUMBER 0xdeaddeadULL /* magic number */
#define DUMP_ASM_VERSION_NUMBER 0x1 /* version number */
/*
* Structure: dump_header_asm_t
* Function: This is the header for architecture-specific stuff. It
* follows right after the dump header.
*/
typedef struct _dump_header_asm_s {
/* the dump magic number -- unique to verify dump is valid */
uint64_t dha_magic_number;
/* the version number of this dump */
uint32_t dha_version;
/* the size of this header (in case we can't read it) */
uint32_t dha_header_size;
/* the esp for i386 systems */
uint32_t dha_esp;
/* the eip for i386 systems */
uint32_t dha_eip;
/* the dump registers */
#if !defined(S390) && !defined(S390X) && !defined(ARM64) && !defined(RISCV64)
struct pt_regs dha_regs;
#endif
} dump_header_asm_t;
#endif /* _ASM_VMDUMP_H */
#endif /* ARM || X86 || PPC */
#if defined(ALPHA) || defined(IA64) || defined(X86_64) || defined(PPC64)
/*
* Plug in the real ../arch/alpha/vmdump.h when available. For now the
* data here are just placeholders...
*/
#ifndef IA64
typedef unsigned int u32;
#include <asm/ptrace.h> /* for pt_regs */
#endif
/* definitions */
#define DUMP_ASM_MAGIC_NUMBER 0xdeaddeadULL /* magic number */
#define DUMP_ASM_VERSION_NUMBER 0x1 /* version number */
typedef struct _dump_header_asm_s {
/* the dump magic number -- unique to verify dump is valid */
uint64_t dha_magic_number;
/* the version number of this dump */
uint32_t dha_version;
/* the size of this header (in case we can't read it) */
uint32_t dha_header_size;
/* the esp for i386 systems */
uint32_t dha_esp;
/* the eip for i386 systems */
uint32_t dha_eip;
/* the dump registers */
#ifndef IA64
struct pt_regs dha_regs;
#endif
} dump_header_asm_t;
#endif /* ALPHA or IA64 (?) */
/* necessary header definitions in all cases */
#define DUMP_KIOBUF_NUMBER 0xdeadbeef /* special number for kiobuf maps */
#ifdef CONFIG_VMDUMP
/* size of a dump header page */
#define DUMP_PAGE_SZ 64 * 1024 /* size of dump page buffer */
/* standard header definitions */
#define DUMP_MAGIC_NUMBER 0xa8190173618f23edULL /* dump magic number */
#define DUMP_VERSION_NUMBER 0x2 /* dump version number */
#define DUMP_PANIC_LEN 0x100 /* dump panic string length */
/* dump flags -- add as necessary */
#define DUMP_RAW 0x1 /* raw page (no compression) */
#define DUMP_COMPRESSED 0x2 /* page is compressed */
#define DUMP_END 0x4 /* end marker on a full dump */
/* dump types - type specific stuff added later for page typing */
#define DUMP_NONE 0 /* no dumping at all -- just bail */
#define DUMP_HEADER 1 /* kernel dump header only */
#define DUMP_KERN 2 /* dump header and kernel pages */
#define DUMP_USED 3 /* dump header, kernel/user pages */
#define DUMP_ALL 4 /* dump header, all memory pages */
/*
* Structure: dump_header_t
* Function: This is the header dumped at the top of every valid crash
* dump.
* easy reassembly of each crash dump page. The address bits
* are split to make things easier for 64-bit/32-bit system
* conversions.
*/
typedef struct _dump_header_s {
/* the dump magic number -- unique to verify dump is valid */
uint64_t dh_magic_number;
/* the version number of this dump */
uint32_t dh_version;
/* the size of this header (in case we can't read it) */
uint32_t dh_header_size;
/* the level of this dump (just a header?) */
uint32_t dh_dump_level;
/* the size of a Linux memory page (4K, 8K, 16K, etc.) */
uint32_t dh_page_size;
/* the size of all physical memory */
uint64_t dh_memory_size;
/* the start of physical memory */
uint64_t dh_memory_start;
/* the end of physical memory */
uint64_t dh_memory_end;
/* the number of pages in this dump specifically */
uint32_t dh_num_pages;
/* the panic string, if available */
char dh_panic_string[DUMP_PANIC_LEN];
/* the time of the system crash */
struct timeval dh_time;
/* the utsname (uname) information */
struct new_utsname dh_utsname;
/* the address of the current task */
struct task_struct *dh_current_task;
} dump_header_t;
/*
* Structure: dump_page_t
* Function: To act as the header associated to each physical page of
* memory saved in the system crash dump. This allows for
* easy reassembly of each crash dump page. The address bits
* are split to make things easier for 64-bit/32-bit system
* conversions.
*/
typedef struct _dump_page_s {
/* the address of this dump page */
uint64_t dp_address;
/* the size of this dump page */
uint32_t dp_size;
/* flags (currently DUMP_COMPRESSED, DUMP_RAW or DUMP_END) */
uint32_t dp_flags;
} dump_page_t;
#endif /* CONFIG_VMDUMP */
#ifdef __KERNEL__
extern void dump_init(uint64_t, uint64_t);
extern void dump_open(char *);
extern void dump_execute(char *, struct pt_regs *);
#endif
#endif /* _VMDUMP_H */