mirror of https://github.com/crash-utility/crash
155 lines
5.1 KiB
C
155 lines
5.1 KiB
C
/* lkcd_vmdump_v1.h - core analysis suite
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*
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* Copyright (C) 1999, 2000, 2001, 2002 Mission Critical Linux, Inc.
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* Copyright (C) 2002, 2003, 2004, 2005, 2006 David Anderson
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* Copyright (C) 2002, 2003, 2004, 2005, 2006 Red Hat, Inc. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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/*
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* Kernel header file for Linux crash dumps.
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*
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* Created by: Matt Robinson (yakker@sgi.com)
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*
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* Copyright 1999 Silicon Graphics, Inc. All rights reserved.
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*
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*/
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/* This header file includes all structure definitions for crash dumps. */
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#ifndef _VMDUMP_H
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#define _VMDUMP_H
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/* necessary header files */
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#ifndef MCLX
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#include <linux/utsname.h> /* for utsname structure */
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#endif
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#ifndef IA64
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typedef unsigned int u32;
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#include <asm/ptrace.h> /* for pt_regs */
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#endif
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/* necessary header definitions in all cases */
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#define DUMP_KIOBUF_NUMBER 0xdeadbeef /* special number for kiobuf maps */
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#ifdef CONFIG_VMDUMP
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/* size of a dump header page */
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#define DUMP_PAGE_SZ 64 * 1024 /* size of dump page buffer */
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/* standard header definitions */
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#define DUMP_MAGIC_NUMBER 0xa8190173618f23edULL /* dump magic number */
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#define DUMP_VERSION_NUMBER 0x1 /* dump version number */
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#define DUMP_PANIC_LEN 0x100 /* dump panic string length */
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/* dump flags -- add as necessary */
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#define DUMP_RAW 0x1 /* raw page (no compression) */
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#define DUMP_COMPRESSED 0x2 /* page is compressed */
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#define DUMP_END 0x4 /* end marker on a full dump */
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/* dump types - type specific stuff added later for page typing */
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#define DUMP_NONE 0 /* no dumping at all -- just bail */
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#define DUMP_HEADER 1 /* kernel dump header only */
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#define DUMP_KERN 2 /* dump header and kernel pages */
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#define DUMP_USED 3 /* dump header, kernel/user pages */
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#define DUMP_ALL 4 /* dump header, all memory pages */
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/*
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* Structure: dump_header_t
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* Function: This is the header dumped at the top of every valid crash
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* dump.
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* easy reassembly of each crash dump page. The address bits
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* are split to make things easier for 64-bit/32-bit system
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* conversions.
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*/
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typedef struct _dump_header_s {
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/* the dump magic number -- unique to verify dump is valid */
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uint64_t dh_magic_number;
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/* the version number of this dump */
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uint32_t dh_version;
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/* the size of this header (in case we can't read it) */
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uint32_t dh_header_size;
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/* the level of this dump (just a header?) */
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uint32_t dh_dump_level;
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/* the size of a Linux memory page (4K, 8K, 16K, etc.) */
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uint32_t dh_page_size;
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/* the size of all physical memory */
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uint64_t dh_memory_size;
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/* the start of physical memory */
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uint64_t dh_memory_start;
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/* the end of physical memory */
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uint64_t dh_memory_end;
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/* the esp for i386 systems -- MOVE LATER */
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uint32_t dh_esp;
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/* the eip for i386 systems -- MOVE LATER */
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uint32_t dh_eip;
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/* the number of pages in this dump specifically */
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uint32_t dh_num_pages;
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/* the panic string, if available */
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char dh_panic_string[DUMP_PANIC_LEN];
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/* the time of the system crash */
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struct timeval dh_time;
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/* the utsname (uname) information */
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struct new_utsname dh_utsname;
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/* the dump registers */
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#if !defined(IA64) && !defined(S390) && !defined(S390X) && !defined(ARM64) && !defined(RISCV64) && !defined(LOONGARCH64)
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struct pt_regs dh_regs;
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#endif
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/* the address of the current task */
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struct task_struct *dh_current_task;
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} dump_header_t;
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/*
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* Structure: dump_page_t
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* Function: To act as the header associated to each physical page of
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* memory saved in the system crash dump. This allows for
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* easy reassembly of each crash dump page. The address bits
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* are split to make things easier for 64-bit/32-bit system
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* conversions.
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*/
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typedef struct _dump_page_s {
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/* the address of this dump page */
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uint64_t dp_address;
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/* the size of this dump page */
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uint32_t dp_size;
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/* flags (currently DUMP_COMPRESSED, DUMP_RAW or DUMP_END) */
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uint32_t dp_flags;
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} dump_page_t;
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#endif /* CONFIG_VMDUMP */
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#ifdef __KERNEL__
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extern void dump_init(uint64_t, uint64_t);
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extern void dump_open(char *);
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extern void dump_execute(char *, struct pt_regs *);
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#endif
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#endif /* _VMDUMP_H */
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