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/*
* makedumpfile.h
*
* Copyright (C) 2006, 2007, 2008, 2009, 2011 NEC Corporation
*
* 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.
*/
#ifndef _MAKEDUMPFILE_H
#define _MAKEDUMPFILE_H
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <gelf.h>
#include <sys/stat.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <time.h>
#include <sys/utsname.h>
#include <sys/wait.h>
#include <zlib.h>
#include <libelf.h>
#include <byteswap.h>
#include <getopt.h>
#include <sys/mman.h>
#ifdef USELZO
#include <lzo/lzo1x.h>
#endif
#ifdef USESNAPPY
#include <snappy-c.h>
#endif
#include "common.h"
#include "dwarf_info.h"
#include "diskdump_mod.h"
#include "print_info.h"
#include "sadump_mod.h"
#include <pthread.h>
#include <semaphore.h>
#include <inttypes.h>
#define VMEMMAPSTART 0xffffea0000000000UL
#define BITS_PER_WORD 64
/*
* Result of command
*/
#define COMPLETED (0)
#define FAILED (1)
#define WRONG_RELEASE (2) /* utsname.release does not match. */
/*
* Type of memory management
*/
enum {
NOT_FOUND_MEMTYPE,
SPARSEMEM,
SPARSEMEM_EX,
DISCONTIGMEM,
FLATMEM
};
int get_mem_type(void);
/*
* Page flags
*
* The flag values of page.flags have been defined by enum since linux-2.6.26.
* The following values are for linux-2.6.25 or former.
*/
#define PG_lru_ORIGINAL (5)
#define PG_slab_ORIGINAL (7)
#define PG_private_ORIGINAL (11) /* Has something at ->private */
#define PG_compound_ORIGINAL (14) /* Is part of a compound page */
#define PG_swapcache_ORIGINAL (15) /* Swap page: swp_entry_t in private */
#define PAGE_BUDDY_MAPCOUNT_VALUE_v2_6_38 (-2)
#define PAGE_BUDDY_MAPCOUNT_VALUE_v2_6_39_to_latest_version (-128)
#define PAGE_FLAGS_SIZE_v2_6_27_to_latest_version (4)
#define PAGE_MAPPING_ANON (1)
#define LSEEKED_BITMAP (1)
#define LSEEKED_PDESC (2)
#define LSEEKED_PDATA (3)
/*
* Xen page flags
*/
#define BITS_PER_LONG (BITPERBYTE * sizeof(long))
#define PG_shift(idx) (BITS_PER_LONG - (idx))
#define PG_mask(x, idx) (x ## UL << PG_shift(idx))
/* Cleared when the owning guest 'frees' this page. */
#define PGC_allocated PG_mask(1, 1)
/* Page is Xen heap? */
#define PGC_xen_heap PG_mask(1, 2)
/* Page is broken? */
#define PGC_broken PG_mask(1, 7)
/* Mutually-exclusive page states: { inuse, offlining, offlined, free }. */
#define PGC_state PG_mask(3, 9)
#define PGC_state_inuse PG_mask(0, 9)
#define PGC_state_offlining PG_mask(1, 9)
#define PGC_state_offlined PG_mask(2, 9)
#define PGC_state_free PG_mask(3, 9)
#define page_state_is(ci, st) (((ci)&PGC_state) == PGC_state_##st)
/* Count of references to this frame. */
#define PGC_count_width PG_shift(9)
#define PGC_count_mask ((1UL<<PGC_count_width)-1)
/*
* Memory flags
*/
#define MEMORY_PAGETABLE_4L (1 << 0)
#define MEMORY_PAGETABLE_3L (1 << 1)
#define MEMORY_X86_PAE (1 << 2)
/*
* Type of address
*/
enum {
VADDR,
PADDR,
VADDR_XEN,
};
/*
* State of mmap(2)
*/
enum {
MMAP_DISABLE,
MMAP_TRY,
MMAP_ENABLE,
};
static inline int
test_bit(int nr, unsigned long addr)
{
int mask;
mask = 1 << (nr & 0x1f);
return ((mask & addr) != 0);
}
#define isLRU(flags) test_bit(NUMBER(PG_lru), flags)
#define isPrivate(flags) test_bit(NUMBER(PG_private), flags)
#define isCompoundHead(flags) (!!((flags) & NUMBER(PG_head_mask)))
#define isSwapCache(flags) test_bit(NUMBER(PG_swapcache), flags)
#define isSwapBacked(flags) test_bit(NUMBER(PG_swapbacked), flags)
#define isHWPOISON(flags) (test_bit(NUMBER(PG_hwpoison), flags) \
&& (NUMBER(PG_hwpoison) != NOT_FOUND_NUMBER))
static inline int
isAnon(unsigned long mapping)
{
return ((unsigned long)mapping & PAGE_MAPPING_ANON) != 0;
}
#define PTOB(X) (((unsigned long long)(X)) << PAGESHIFT())
#define BTOP(X) (((unsigned long long)(X)) >> PAGESHIFT())
#define PAGESIZE() (info->page_size)
#define PAGESHIFT() (info->page_shift)
#define PAGEOFFSET(X) (((unsigned long long)(X)) & (PAGESIZE() - 1))
#define PAGEBASE(X) (((unsigned long long)(X)) & ~(PAGESIZE() - 1))
/*
* for SPARSEMEM
*/
#define SECTION_SIZE_BITS() (info->section_size_bits)
#define MAX_PHYSMEM_BITS() (info->max_physmem_bits)
#define PFN_SECTION_SHIFT() (SECTION_SIZE_BITS() - PAGESHIFT())
#define PAGES_PER_SECTION() (1UL << PFN_SECTION_SHIFT())
#define _SECTIONS_PER_ROOT() (1)
#define _SECTIONS_PER_ROOT_EXTREME() (info->page_size / SIZE(mem_section))
#define SECTIONS_PER_ROOT() (info->sections_per_root)
#define SECTION_ROOT_MASK() (SECTIONS_PER_ROOT() - 1)
#define SECTION_NR_TO_ROOT(sec) ((sec) / SECTIONS_PER_ROOT())
#define SECTION_MARKED_PRESENT (1UL<<0)
#define SECTION_IS_ONLINE (1UL<<2)
/*
* SECTION_MAP_LAST_BIT was 1UL<<2 before Linux 4.13.0.
* However, we always use the higher value, because:
* 1. at least one distributor backported commit 2d070eab2e82 to kernel
* version 4.12,
* 2. it has been verified that (1UL<<2) was never set, so it is
* safe to mask that bit off even in old kernels.
*/
#define SECTION_MAP_LAST_BIT (1UL<<4)
#define SECTION_MAP_MASK (~(SECTION_MAP_LAST_BIT-1))
#define NR_SECTION_ROOTS() divideup(num_section, SECTIONS_PER_ROOT())
#define SECTION_NR_TO_PFN(sec) ((sec) << PFN_SECTION_SHIFT())
#define SECTIONS_SHIFT() (MAX_PHYSMEM_BITS() - SECTION_SIZE_BITS())
#define NR_MEM_SECTIONS() (1UL << SECTIONS_SHIFT())
/*
* Dump Level
*/
#define MIN_DUMP_LEVEL (0)
#define MAX_DUMP_LEVEL (31)
#define NUM_ARRAY_DUMP_LEVEL (MAX_DUMP_LEVEL + 1) /* enough to allocate
all the dump_level */
#define DL_EXCLUDE_ZERO (0x001) /* Exclude Pages filled with Zeros */
#define DL_EXCLUDE_CACHE (0x002) /* Exclude Cache Pages
without Private Pages */
#define DL_EXCLUDE_CACHE_PRI (0x004) /* Exclude Cache Pages
with Private Pages */
#define DL_EXCLUDE_USER_DATA (0x008) /* Exclude UserProcessData Pages */
#define DL_EXCLUDE_FREE (0x010) /* Exclude Free Pages */
/*
* For parse_line()
*/
#define NULLCHAR ('\0')
#define MAXARGS (100) /* max number of arguments to one function */
#define LASTCHAR(s) (s[strlen(s)-1])
#define BITPERBYTE (8)
#define PGMM_CACHED (512)
#define PFN_EXCLUDED (256)
#define BUFSIZE (1024)
#define BUFSIZE_FGETS (1500)
#define BUFSIZE_BITMAP (4096)
#define PFN_BUFBITMAP (BITPERBYTE*BUFSIZE_BITMAP)
#define FILENAME_BITMAP "kdump_bitmapXXXXXX"
#define FILENAME_STDOUT "STDOUT"
#define MAP_REGION (4096*1024)
/*
* Minimam vmcore has 2 ProgramHeaderTables(PT_NOTE and PT_LOAD).
*/
#define MIN_ELF32_HEADER_SIZE \
sizeof(Elf32_Ehdr)+sizeof(Elf32_Phdr)+sizeof(Elf32_Phdr)
#define MIN_ELF64_HEADER_SIZE \
sizeof(Elf64_Ehdr)+sizeof(Elf64_Phdr)+sizeof(Elf64_Phdr)
#define MIN_ELF_HEADER_SIZE \
MAX(MIN_ELF32_HEADER_SIZE, MIN_ELF64_HEADER_SIZE)
static inline int string_exists(char *s) { return (s ? TRUE : FALSE); }
#define STREQ(A, B) (string_exists((char *)A) && \
string_exists((char *)B) && \
(strcmp((char *)(A), (char *)(B)) == 0))
#define STRNEQ(A, B)(string_exists((char *)(A)) && \
string_exists((char *)(B)) && \
(strncmp((char *)(A), (char *)(B), strlen((char *)(B))) == 0))
#define UCHAR(ADDR) *((unsigned char *)(ADDR))
#define USHORT(ADDR) *((unsigned short *)(ADDR))
#define UINT(ADDR) *((unsigned int *)(ADDR))
#define ULONG(ADDR) *((unsigned long *)(ADDR))
#define ULONGLONG(ADDR) *((unsigned long long *)(ADDR))
/*
* for symbol
*/
#define INVALID_SYMBOL_DATA (ULONG_MAX)
#define SYMBOL(X) (symbol_table.X)
#define SYMBOL_INIT(symbol, str_symbol) \
do { \
SYMBOL(symbol) = get_symbol_addr(str_symbol); \
if (SYMBOL(symbol) != NOT_FOUND_SYMBOL) \
SYMBOL(symbol) += info->kaslr_offset; \
} while (0)
#define SYMBOL_INIT_NEXT(symbol, str_symbol) \
do { \
SYMBOL(symbol) = get_next_symbol_addr(str_symbol); \
if (SYMBOL(symbol) != NOT_FOUND_SYMBOL) \
SYMBOL(symbol) += info->kaslr_offset; \
} while (0)
#define WRITE_SYMBOL(str_symbol, symbol) \
do { \
if (SYMBOL(symbol) != NOT_FOUND_SYMBOL) { \
fprintf(info->file_vmcoreinfo, "%s%llx\n", \
STR_SYMBOL(str_symbol), SYMBOL(symbol)); \
} \
} while (0)
#define READ_SYMBOL(str_symbol, symbol) \
do { \
if (SYMBOL(symbol) == NOT_FOUND_SYMBOL) { \
SYMBOL(symbol) = read_vmcoreinfo_symbol(STR_SYMBOL(str_symbol)); \
if (SYMBOL(symbol) == INVALID_SYMBOL_DATA) \
return FALSE; \
if (info->read_text_vmcoreinfo && \
(SYMBOL(symbol) != NOT_FOUND_SYMBOL) && \
(SYMBOL(symbol) != INVALID_SYMBOL_DATA)) \
SYMBOL(symbol) += info->kaslr_offset; \
} \
} while (0)
/*
* for structure
*/
#define SIZE(X) (size_table.X)
#define OFFSET(X) (offset_table.X)
#define ARRAY_LENGTH(X) (array_table.X)
#define SIZE_INIT(X, Y) \
do { \
if ((SIZE(X) = get_structure_size(Y, DWARF_INFO_GET_STRUCT_SIZE)) \
== FAILED_DWARFINFO) \
return FALSE; \
} while (0)
#define TYPEDEF_SIZE_INIT(X, Y) \
do { \
if ((SIZE(X) = get_structure_size(Y, DWARF_INFO_GET_TYPEDEF_SIZE)) \
== FAILED_DWARFINFO) \
return FALSE; \
} while (0)
#define ENUM_TYPE_SIZE_INIT(X, Y) \
do { \
if ((SIZE(X) = get_structure_size(Y, \
DWARF_INFO_GET_ENUMERATION_TYPE_SIZE)) \
== FAILED_DWARFINFO) \
return FALSE; \
} while (0)
#define OFFSET_INIT(X, Y, Z) \
do { \
if ((OFFSET(X) = get_member_offset(Y, Z, DWARF_INFO_GET_MEMBER_OFFSET)) \
== FAILED_DWARFINFO) \
return FALSE; \
} while (0)
#define SYMBOL_ARRAY_LENGTH_INIT(X, Y) \
do { \
if ((ARRAY_LENGTH(X) = get_array_length(Y, NULL, DWARF_INFO_GET_SYMBOL_ARRAY_LENGTH)) == FAILED_DWARFINFO) \
return FALSE; \
} while (0)
#define SYMBOL_ARRAY_TYPE_INIT(X, Y) \
do { \
if ((ARRAY_LENGTH(X) = get_array_length(Y, NULL, DWARF_INFO_CHECK_SYMBOL_ARRAY_TYPE)) == FAILED_DWARFINFO) \
return FALSE; \
} while (0)
#define MEMBER_ARRAY_LENGTH_INIT(X, Y, Z) \
do { \
if ((ARRAY_LENGTH(X) = get_array_length(Y, Z, DWARF_INFO_GET_MEMBER_ARRAY_LENGTH)) == FAILED_DWARFINFO) \
return FALSE; \
} while (0)
#define WRITE_STRUCTURE_SIZE(str_structure, structure) \
do { \
if (SIZE(structure) != NOT_FOUND_STRUCTURE) { \
fprintf(info->file_vmcoreinfo, "%s%ld\n", \
STR_SIZE(str_structure), SIZE(structure)); \
} \
} while (0)
#define WRITE_MEMBER_OFFSET(str_member, member) \
do { \
if (OFFSET(member) != NOT_FOUND_STRUCTURE) { \
fprintf(info->file_vmcoreinfo, "%s%ld\n", \
STR_OFFSET(str_member), OFFSET(member)); \
} \
} while (0)
#define WRITE_ARRAY_LENGTH(str_array, array) \
do { \
if (ARRAY_LENGTH(array) != NOT_FOUND_STRUCTURE) { \
fprintf(info->file_vmcoreinfo, "%s%ld\n", \
STR_LENGTH(str_array), ARRAY_LENGTH(array)); \
} \
} while (0)
#define READ_STRUCTURE_SIZE(str_structure, structure) \
do { \
if (SIZE(structure) == NOT_FOUND_STRUCTURE) { \
SIZE(structure) = read_vmcoreinfo_long(STR_SIZE(str_structure)); \
if (SIZE(structure) == INVALID_STRUCTURE_DATA) \
return FALSE; \
} \
} while (0)
#define READ_MEMBER_OFFSET(str_member, member) \
do { \
if (OFFSET(member) == NOT_FOUND_STRUCTURE) { \
OFFSET(member) = read_vmcoreinfo_long(STR_OFFSET(str_member)); \
if (OFFSET(member) == INVALID_STRUCTURE_DATA) \
return FALSE; \
} \
} while (0)
#define READ_ARRAY_LENGTH(str_array, array) \
do { \
if (ARRAY_LENGTH(array) == NOT_FOUND_STRUCTURE) { \
ARRAY_LENGTH(array) = read_vmcoreinfo_long(STR_LENGTH(str_array)); \
if (ARRAY_LENGTH(array) == INVALID_STRUCTURE_DATA) \
return FALSE; \
} \
} while (0)
/*
* for number
*/
#define NUMBER(X) (number_table.X)
#define ENUM_NUMBER_INIT(number, str_number) \
do {\
NUMBER(number) = get_enum_number(str_number); \
if (NUMBER(number) == FAILED_DWARFINFO) \
return FALSE; \
} while (0)
#define WRITE_NUMBER(str_number, number) \
do { \
if (NUMBER(number) != NOT_FOUND_NUMBER) { \
fprintf(info->file_vmcoreinfo, "%s%ld\n", \
STR_NUMBER(str_number), NUMBER(number)); \
} \
} while (0)
#define READ_NUMBER(str_number, number) \
do { \
if (NUMBER(number) == NOT_FOUND_NUMBER) { \
NUMBER(number) = read_vmcoreinfo_long(STR_NUMBER(str_number)); \
if (NUMBER(number) == INVALID_STRUCTURE_DATA) \
return FALSE; \
} \
} while (0)
#define WRITE_NUMBER_UNSIGNED(str_number, number) \
do { \
if (NUMBER(number) != NOT_FOUND_NUMBER) { \
fprintf(info->file_vmcoreinfo, "%s%lu\n", \
STR_NUMBER(str_number), NUMBER(number)); \
} \
} while (0)
#define READ_NUMBER_UNSIGNED(str_number, number) \
do { \
if (NUMBER(number) == NOT_FOUND_NUMBER) { \
NUMBER(number) = read_vmcoreinfo_ulong(STR_NUMBER(str_number)); \
if (NUMBER(number) == INVALID_STRUCTURE_DATA) \
return FALSE; \
} \
} while (0)
/*
* for source file name
*/
#define SRCFILE(X) (srcfile_table.X)
#define TYPEDEF_SRCFILE_INIT(decl_name, str_decl_name) \
do { \
get_source_filename(str_decl_name, SRCFILE(decl_name), DWARF_INFO_GET_TYPEDEF_SRCNAME); \
} while (0)
#define WRITE_SRCFILE(str_decl_name, decl_name) \
do { \
if (strlen(SRCFILE(decl_name))) { \
fprintf(info->file_vmcoreinfo, "%s%s\n", \
STR_SRCFILE(str_decl_name), SRCFILE(decl_name)); \
} \
} while (0)
#define READ_SRCFILE(str_decl_name, decl_name) \
do { \
if (strlen(SRCFILE(decl_name)) == 0) { \
if (!read_vmcoreinfo_string(STR_SRCFILE(str_decl_name), SRCFILE(decl_name))) \
return FALSE; \
} \
} while (0)
/*
* Macro for getting splitting info.
*/
#define SPLITTING_DUMPFILE(i) info->splitting_info[i].name_dumpfile
#define SPLITTING_FD_BITMAP(i) info->splitting_info[i].fd_bitmap
#define SPLITTING_START_PFN(i) info->splitting_info[i].start_pfn
#define SPLITTING_END_PFN(i) info->splitting_info[i].end_pfn
#define SPLITTING_OFFSET_EI(i) info->splitting_info[i].offset_eraseinfo
#define SPLITTING_SIZE_EI(i) info->splitting_info[i].size_eraseinfo
/*
* Macro for getting parallel info.
*/
#define FD_MEMORY_PARALLEL(i) info->parallel_info[i].fd_memory
#define FD_BITMAP_MEMORY_PARALLEL(i) info->parallel_info[i].fd_bitmap_memory
#define FD_BITMAP_PARALLEL(i) info->parallel_info[i].fd_bitmap
#define BUF_PARALLEL(i) info->parallel_info[i].buf
#define BUF_OUT_PARALLEL(i) info->parallel_info[i].buf_out
#define MMAP_CACHE_PARALLEL(i) info->parallel_info[i].mmap_cache
#define ZLIB_STREAM_PARALLEL(i) info->parallel_info[i].zlib_stream
#ifdef USELZO
#define WRKMEM_PARALLEL(i) info->parallel_info[i].wrkmem
#endif
/*
* kernel version
*
* NOTE: the format of kernel_version is as follows
* 8 bits major version
* 8 bits minor version
* 16 bits release
* so version 2.6.18 would be encoded as 0x02060012
* These macros will let us decode that easier
*/
#define KVER_MAJ_SHIFT 24
#define KVER_MIN_SHIFT 16
#define KERNEL_VERSION(x,y,z) (((x) << KVER_MAJ_SHIFT) | ((y) << KVER_MIN_SHIFT) | (z))
#define OLDEST_VERSION KERNEL_VERSION(2, 6, 15) /* linux-2.6.15 */
#define LATEST_VERSION KERNEL_VERSION(5, 9, 4) /* linux-5.9.4 */
/*
* vmcoreinfo in /proc/vmcore
*/
#define VMCOREINFO_BYTES (4096)
#define FILENAME_VMCOREINFO "/tmp/vmcoreinfoXXXXXX"
/*
* field name of vmcoreinfo file
*/
#define STR_OSRELEASE "OSRELEASE="
#define STR_PAGESIZE "PAGESIZE="
#define STR_CRASHTIME "CRASHTIME="
#define STR_SYMBOL(X) "SYMBOL("X")="
#define STR_SIZE(X) "SIZE("X")="
#define STR_OFFSET(X) "OFFSET("X")="
#define STR_LENGTH(X) "LENGTH("X")="
#define STR_NUMBER(X) "NUMBER("X")="
#define STR_SRCFILE(X) "SRCFILE("X")="
#define STR_CONFIG_X86_PAE "CONFIG_X86_PAE=y"
#define STR_CONFIG_PGTABLE_4 "CONFIG_PGTABLE_4=y"
#define STR_CONFIG_PGTABLE_3 "CONFIG_PGTABLE_3=y"
#define STR_KERNELOFFSET "KERNELOFFSET="
/*
* common value
*/
#define NOSPACE (-1) /* code of write-error due to nospace */
#define DEFAULT_ORDER (4)
#define TIMEOUT_STDIN (600)
#define SIZE_BUF_STDIN (4096)
#define STRLEN_OSRELEASE (65) /* same length as diskdump.h */
/*
* The value of dependence on machine
*/
#define PAGE_OFFSET (info->page_offset)
#define VMALLOC_START (info->vmalloc_start)
#define VMALLOC_END (info->vmalloc_end)
#define VMEMMAP_START (info->vmemmap_start)
#define VMEMMAP_END (info->vmemmap_end)
#define PMASK (0x7ffffffffffff000UL)
#ifdef __aarch64__
unsigned long get_kvbase_arm64(void);
#define KVBASE get_kvbase_arm64()
#endif /* aarch64 */
#ifdef __arm__
#define KVBASE_MASK (0xffff)
#define KVBASE (SYMBOL(_stext) & ~KVBASE_MASK)
#define _SECTION_SIZE_BITS (28)
#define _MAX_PHYSMEM_BITS (32)
#define ARCH_PFN_OFFSET (info->phys_base >> PAGESHIFT())
#define PTRS_PER_PTE (512)
#define PGDIR_SHIFT (21)
#define PMD_SHIFT (21)
#define PMD_SIZE (1UL << PMD_SHIFT)
#define PMD_MASK (~(PMD_SIZE - 1))
#define _PAGE_PRESENT (1 << 0)
#endif /* arm */
#ifdef __x86__
#define __PAGE_OFFSET (0xc0000000)
#define __VMALLOC_RESERVE (128 << 20)
#define MAXMEM (-PAGE_OFFSET-__VMALLOC_RESERVE)
#define KVBASE_MASK (0x7fffff)
#define KVBASE (SYMBOL(_stext) & ~KVBASE_MASK)
#define _SECTION_SIZE_BITS (26)
#define _SECTION_SIZE_BITS_PAE_ORIG (30)
#define _SECTION_SIZE_BITS_PAE_2_6_26 (29)
#define _MAX_PHYSMEM_BITS (32)
#define _MAX_PHYSMEM_BITS_PAE (36)
#define PGDIR_SHIFT_3LEVEL (30)
#define PTRS_PER_PTE_3LEVEL (512)
#define PTRS_PER_PGD_3LEVEL (4)
#define PMD_SHIFT (21) /* only used by PAE translators */
#define PTRS_PER_PMD (512) /* only used by PAE translators */
#define PTE_SHIFT (12) /* only used by PAE translators */
#define PTRS_PER_PTE (512) /* only used by PAE translators */
#define pgd_index_PAE(address) (((address) >> PGDIR_SHIFT_3LEVEL) & (PTRS_PER_PGD_3LEVEL - 1))
#define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD - 1))
#define pte_index(address) (((address) >> PTE_SHIFT) & (PTRS_PER_PTE - 1))
#define _PAGE_PRESENT (0x001)
#define _PAGE_PSE (0x080)
/* Physical addresses are up to 52 bits (AMD64).
* Mask off bits 52-62 (reserved) and bit 63 (NX).
*/
#define ENTRY_MASK (~0xfff0000000000fffULL)
#endif /* x86 */
#ifdef __x86_64__
#define __PAGE_OFFSET_ORIG (0xffff810000000000) /* 2.6.26, or former */
#define __PAGE_OFFSET_2_6_27 (0xffff880000000000) /* 2.6.27, or later */
#define __PAGE_OFFSET_5LEVEL (0xff10000000000000) /* 5-level page table */
#define VMALLOC_START_ORIG (0xffffc20000000000) /* 2.6.30, or former */
#define VMALLOC_START_2_6_31 (0xffffc90000000000) /* 2.6.31, or later */
#define VMALLOC_START_5LEVEL (0xffa0000000000000) /* 5-level page table */
#define VMALLOC_END_ORIG (0xffffe1ffffffffff) /* 2.6.30, or former */
#define VMALLOC_END_2_6_31 (0xffffe8ffffffffff) /* 2.6.31, or later */
#define VMALLOC_END_5LEVEL (0xffd1ffffffffffff) /* 5-level page table */
#define VMEMMAP_START_ORIG (0xffffe20000000000) /* 2.6.30, or former */
#define VMEMMAP_START_2_6_31 (0xffffea0000000000) /* 2.6.31, or later */
#define VMEMMAP_START_5LEVEL (0xffd4000000000000) /* 5-level page table */
#define VMEMMAP_END_ORIG (0xffffe2ffffffffff) /* 2.6.30, or former */
#define VMEMMAP_END_2_6_31 (0xffffeaffffffffff) /* 2.6.31, or later */
#define VMEMMAP_END_5LEVEL (0xffd5ffffffffffff) /* 5-level page table */
#define __START_KERNEL_map (0xffffffff80000000)
#define KERNEL_IMAGE_SIZE_KASLR_ORIG (1024*1024*1024) /* 3.14, or later */
#define KVBASE PAGE_OFFSET
#define _SECTION_SIZE_BITS (27)
#define _MAX_PHYSMEM_BITS_ORIG (40)
#define _MAX_PHYSMEM_BITS_2_6_26 (44)
#define _MAX_PHYSMEM_BITS_2_6_31 (46)
#define _MAX_PHYSMEM_BITS_5LEVEL (52)
/*
* 4 Levels paging
*/
#define PGD_SHIFT (39)
#define PUD_SHIFT (30)
#define PMD_SHIFT (21)
#define PTE_SHIFT (12)
#define PTRS_PER_PGD (512)
#define PTRS_PER_PUD (512)
#define PTRS_PER_PMD (512)
#define PTRS_PER_PTE (512)
#define PUD_SIZE (1UL << PUD_SHIFT)
#define PUD_MASK (~(PUD_SIZE - 1))
#define PMD_SIZE (1UL << PMD_SHIFT)
#define PMD_MASK (~(PMD_SIZE - 1))
/*
* 5 Levels paging
*/
#define PGD_SHIFT_5LEVEL (48)
#define P4D_SHIFT (39)
#define PTRS_PER_PGD_5LEVEL (512)
#define PTRS_PER_P4D (512)
#define pgd5_index(address) (((address) >> PGD_SHIFT_5LEVEL) & (PTRS_PER_PGD_5LEVEL - 1))
#define pgd_index(address) (((address) >> PGD_SHIFT) & (PTRS_PER_PGD - 1))
#define p4d_index(address) (((address) >> P4D_SHIFT) & (PTRS_PER_P4D - 1))
#define pud_index(address) (((address) >> PUD_SHIFT) & (PTRS_PER_PUD - 1))
#define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD - 1))
#define pte_index(address) (((address) >> PTE_SHIFT) & (PTRS_PER_PTE - 1))
#define _PAGE_PRESENT (0x001)
#define _PAGE_PSE (0x080) /* 2MB or 1GB page */
#endif /* x86_64 */
#ifdef __powerpc64__
#define __PAGE_OFFSET (0xc000000000000000)
#define KERNELBASE PAGE_OFFSET
#define VMALLOCBASE (0xD000000000000000)
#define KVBASE (SYMBOL(_stext))
#define _SECTION_SIZE_BITS (24)
#define _MAX_PHYSMEM_BITS_ORIG (44)
#define _MAX_PHYSMEM_BITS_3_7 (46)
#define _MAX_PHYSMEM_BITS_4_19 (47)
#define _MAX_PHYSMEM_BITS_4_20 (51)
#define REGION_SHIFT (60UL)
#define VMEMMAP_REGION_ID (0xfUL)
/* 4-level page table support */
/* 4K pagesize */
#define PTE_INDEX_SIZE_L4_4K 9
#define PMD_INDEX_SIZE_L4_4K 7
#define PUD_INDEX_SIZE_L4_4K 7
#define PGD_INDEX_SIZE_L4_4K 9
#define PUD_INDEX_SIZE_L4_4K_3_7 9
#define PTE_INDEX_SIZE_RADIX_4K 9
#define PMD_INDEX_SIZE_RADIX_4K 9
#define PUD_INDEX_SIZE_RADIX_4K 9
#define PGD_INDEX_SIZE_RADIX_4K 13
#define PTE_RPN_SHIFT_L4_4K 17
#define PTE_RPN_SHIFT_L4_4K_4_5 18
#define PGD_MASKED_BITS_4K 0
#define PUD_MASKED_BITS_4K 0
#define PMD_MASKED_BITS_4K 0
/* 64K pagesize */
#define PTE_INDEX_SIZE_L4_64K 12
#define PMD_INDEX_SIZE_L4_64K 12
#define PUD_INDEX_SIZE_L4_64K 0
#define PGD_INDEX_SIZE_L4_64K 4
#define PTE_INDEX_SIZE_L4_64K_3_10 8
#define PMD_INDEX_SIZE_L4_64K_3_10 10
#define PGD_INDEX_SIZE_L4_64K_3_10 12
#define PMD_INDEX_SIZE_L4_64K_4_6 5
#define PUD_INDEX_SIZE_L4_64K_4_6 5
#define PMD_INDEX_SIZE_L4_64K_4_12 10
#define PUD_INDEX_SIZE_L4_64K_4_12 7
#define PGD_INDEX_SIZE_L4_64K_4_12 8
#define PUD_INDEX_SIZE_L4_64K_4_17 10
#define PTE_INDEX_SIZE_RADIX_64K 5
#define PMD_INDEX_SIZE_RADIX_64K 9
#define PUD_INDEX_SIZE_RADIX_64K 9
#define PGD_INDEX_SIZE_RADIX_64K 13
#define PTE_RPN_SHIFT_L4_64K_V1 32
#define PTE_RPN_SHIFT_L4_64K_V2 30
#define PGD_MASKED_BITS_64K 0
#define PUD_MASKED_BITS_64K 0x1ff
#define PMD_MASKED_BITS_64K 0x1ff
#define PMD_MASKED_BITS_64K_3_11 0xfff
#define PGD_MASKED_BITS_64K_4_6 0xc0000000000000ffUL
#define PUD_MASKED_BITS_64K_4_6 0xc0000000000000ffUL
#define PMD_MASKED_BITS_64K_4_6 0xc0000000000000ffUL
#define PTE_RPN_MASK_DEFAULT 0xffffffffffffffffUL
#define PTE_RPN_SIZE_L4_4_6 (info->page_size == 65536 ? 41 : 45)
#define PTE_RPN_MASK_L4_4_6 (((1UL << PTE_RPN_SIZE_L4_4_6) - 1) << info->page_shift)
#define PTE_RPN_SHIFT_L4_4_6 info->page_shift
#define PGD_MASKED_BITS_4_7 0xc0000000000000ffUL
#define PUD_MASKED_BITS_4_7 0xc0000000000000ffUL
#define PMD_MASKED_BITS_4_7 0xc0000000000000ffUL
#define PTE_RPN_SIZE_L4_4_11 53
#define PTE_RPN_MASK_L4_4_11 \
(((1UL << PTE_RPN_SIZE_L4_4_11) - 1) & ~((1UL << info->page_shift) - 1))
#define PTE_RPN_SHIFT_L4_4_11 info->page_shift
/*
* Supported MMU types
*/
#define STD_MMU 0x0
/*
* The flag bit for radix MMU in cpu_spec.mmu_features
* in the kernel. Use the same flag here.
*/
#define RADIX_MMU 0x40
#define PGD_MASK_L4 \
(info->kernel_version >= KERNEL_VERSION(3, 10, 0) ? (info->ptrs_per_pgd - 1) : 0x1ff)
#define PGD_OFFSET_L4(vaddr) ((vaddr >> (info->l4_shift)) & PGD_MASK_L4)
#define PUD_OFFSET_L4(vaddr) \
((vaddr >> (info->l3_shift)) & (info->ptrs_per_l3 - 1))
#define PMD_OFFSET_L4(vaddr) \
((vaddr >> (info->l2_shift)) & (info->ptrs_per_l2 - 1))
#define _PAGE_PRESENT \
(info->kernel_version >= KERNEL_VERSION(4, 6, 0) ? \
(0x1UL << 63) : (info->kernel_version >= KERNEL_VERSION(4, 5, 0) ? \
0x2UL : 0x1UL))
#endif
#ifdef __powerpc32__
#define __PAGE_OFFSET (0xc0000000)
#define KERNELBASE PAGE_OFFSET
#define VMALL_START (info->vmalloc_start)
#define KVBASE (SYMBOL(_stext))
#define _SECTION_SIZE_BITS (24)
#define _MAX_PHYSMEM_BITS (44)
#endif
#ifdef __s390x__
#define __PAGE_OFFSET (info->page_size - 1)
#define KERNELBASE (0)
#define KVBASE KERNELBASE
#define _SECTION_SIZE_BITS (28)
#define _MAX_PHYSMEM_BITS_ORIG (42)
#define _MAX_PHYSMEM_BITS_3_3 (46)
/* Bits in the segment/region table address-space-control-element */
#define _ASCE_TYPE_MASK 0x0c
#define _ASCE_TABLE_LENGTH 0x03 /* region table length */
#define TABLE_LEVEL(x) (((x) & _ASCE_TYPE_MASK) >> 2)
#define TABLE_LENGTH(x) ((x) & _ASCE_TABLE_LENGTH)
/* Bits in the region table entry */
#define _REGION_ENTRY_ORIGIN ~0xfffUL /* region table origin*/
#define _REGION_ENTRY_TYPE_MASK 0x0c /* region table type mask */
#define _REGION_ENTRY_INVALID 0x20 /* invalid region table entry */
#define _REGION_ENTRY_LENGTH 0x03 /* region table length */
#define _REGION_ENTRY_LARGE 0x400
#define _REGION_OFFSET_MASK 0x7ffUL /* region/segment table offset mask */
#define RSG_TABLE_LEVEL(x) (((x) & _REGION_ENTRY_TYPE_MASK) >> 2)
#define RSG_TABLE_LENGTH(x) ((x) & _REGION_ENTRY_LENGTH)
/* Bits in the segment table entry */
#define _SEGMENT_ENTRY_ORIGIN ~0x7ffUL
#define _SEGMENT_ENTRY_LARGE 0x400
#define _SEGMENT_ENTRY_CO 0x100
#define _SEGMENT_PAGE_SHIFT 31
#define _SEGMENT_INDEX_SHIFT 20
/* Hardware bits in the page table entry */
#define _PAGE_ZERO 0x800 /* Bit pos 52 must conatin zero */
#define _PAGE_INVALID 0x400 /* HW invalid bit */
#define _PAGE_INDEX_SHIFT 12
#define _PAGE_OFFSET_MASK 0xffUL /* page table offset mask */
#endif /* __s390x__ */
#ifdef __ia64__ /* ia64 */
#define REGION_SHIFT (61)
#define KERNEL_CACHED_REGION (7)
#define KERNEL_UNCACHED_REGION (6)
#define KERNEL_VMALLOC_REGION (5)
#define USER_STACK_REGION (4)
#define USER_DATA_REGION (3)
#define USER_TEXT_REGION (2)
#define USER_SHMEM_REGION (1)
#define USER_IA32_EMUL_REGION (0)
#define KERNEL_CACHED_BASE ((unsigned long)KERNEL_CACHED_REGION << REGION_SHIFT)
#define KERNEL_UNCACHED_BASE ((unsigned long)KERNEL_UNCACHED_REGION << REGION_SHIFT)
#define KERNEL_VMALLOC_BASE ((unsigned long)KERNEL_VMALLOC_REGION << REGION_SHIFT)
#define KVBASE KERNEL_VMALLOC_BASE
#define _PAGE_SIZE_64M (26)
#define KERNEL_TR_PAGE_SIZE (1 << _PAGE_SIZE_64M)
#define KERNEL_TR_PAGE_MASK (~(KERNEL_TR_PAGE_SIZE - 1))
#define DEFAULT_PHYS_START (KERNEL_TR_PAGE_SIZE * 1)
#define _SECTION_SIZE_BITS (30)
#define _MAX_PHYSMEM_BITS (50)
/*
* 3 Levels paging
*/
#define _PAGE_PPN_MASK (((1UL << _MAX_PHYSMEM_BITS) - 1) & ~0xfffUL)
#define PTRS_PER_PTD_SHIFT (PAGESHIFT() - 3)
#define PMD_SHIFT (PAGESHIFT() + PTRS_PER_PTD_SHIFT)
#define PGDIR_SHIFT_3L (PMD_SHIFT + PTRS_PER_PTD_SHIFT)
#define MASK_POFFSET ((1UL << PAGESHIFT()) - 1)
#define MASK_PTE ((1UL << PMD_SHIFT) - 1) &~((1UL << PAGESHIFT()) - 1)
#define MASK_PMD ((1UL << PGDIR_SHIFT_3L) - 1) &~((1UL << PMD_SHIFT) - 1)
#define MASK_PGD_3L ((1UL << REGION_SHIFT) - 1) & (~((1UL << PGDIR_SHIFT_3L) - 1))
/*
* 4 Levels paging
*/
#define PUD_SHIFT (PMD_SHIFT + PTRS_PER_PTD_SHIFT)
#define PGDIR_SHIFT_4L (PUD_SHIFT + PTRS_PER_PTD_SHIFT)
#define MASK_PUD ((1UL << REGION_SHIFT) - 1) & (~((1UL << PUD_SHIFT) - 1))
#define MASK_PGD_4L ((1UL << REGION_SHIFT) - 1) & (~((1UL << PGDIR_SHIFT_4L) - 1))
/*
* Key for distinguishing PGTABLE_3L or PGTABLE_4L.
*/
#define STR_PUD_T_3L "include/asm-generic/pgtable-nopud.h"
#define STR_PUD_T_4L "include/asm/page.h"
#endif /* ia64 */
#ifdef __sparc64__
#define KVBASE (SYMBOL(_stext))
#define KVBASE_MASK (0xffff)
#define _SECTION_SIZE_BITS (30)
#define _MAX_PHYSMEM_BITS_L3 (49)
#define _MAX_PHYSMEM_BITS_L4 (53)
#define VMALLOC_START_SPARC64 (0x0000000100000000UL)
#define VMEMMAP_BASE_SPARC64 (0x0000010000000000UL)
#define VMEMMAP_CHUNK_SHIFT (22)
#define VMEMMAP_CHUNK (1UL << VMEMMAP_CHUNK_SHIFT)
#define VMEMMAP_CHUNK_MASK (~(VMEMMAP_CHUNK - 1UL))
#define PAGE_SHIFT 13
#define PAGE_SIZE (1UL << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE - 1))
#define MAX_PHYS_ADDRESS_LOBITS (41)
#define NR_CHUNKS_SHIFT (MAX_PHYS_ADDRESS_LOBITS - PAGE_SHIFT + 6)
#define NR_CHUNKS_MASK (~((1UL << NR_CHUNKS_SHIFT) - 1))
#define PMD_SHIFT (PAGE_SHIFT + (PAGE_SHIFT - 3))
#define PMD_SIZE (1UL << PMD_SHIFT)
#define PMD_MASK (~(PMD_SIZE - 1))
#define PMD_BITS (PAGE_SHIFT - 3)
#define PUD_SHIFT (PMD_SHIFT + PMD_BITS)
#define PUD_SIZE (1UL << PUD_SHIFT)
#define PUD_MASK (~(PUD_SIZE - 1))
#define PUD_BITS (PAGE_SHIFT - 3)
#define PGDIR_SHIFT_L4 (PUD_SHIFT + PUD_BITS)
#define PGDIR_SIZE_L4 (1UL << PGDIR_SHIFT_L4)
#define PGDIR_MASK_L4 (~(PGDIR_SIZE_L4 - 1))
#define PGDIR_SHIFT_L3 (PMD_SHIFT + PMD_BITS)
#define PGDIR_SIZE_L3 (1UL << PGDIR_SHIFT_L3)
#define PGDIR_MASK_L3 (~(PGDIR_SIZE_L3 - 1))
#define PGDIR_BITS (PAGE_SHIFT - 3)
#define PTRS_PER_PTE (1UL << (PAGE_SHIFT - 3))
#define PTRS_PER_PMD (1UL << PMD_BITS)
#define PTRS_PER_PUD (1UL << PUD_BITS)
#define PTRS_PER_PGD (1UL << PGDIR_BITS)
#define _PAGE_PMD_HUGE (0x0100000000000000UL)
#define _PAGE_PUD_HUGE _PAGE_PMD_HUGE
#define _PAGE_PADDR_4V (0x00FFFFFFFFFFE000UL)
#define _PAGE_PRESENT_4V (0x0000000000000010UL)
typedef unsigned long pte_t;
typedef unsigned long pmd_t;
typedef unsigned long pud_t;
typedef unsigned long pgd_t;
#define pud_none(pud) (!(pud))
#define pgd_none(pgd) (!(pgd))
#define pmd_none(pmd) (!(pmd))
#define pte_to_pa(pte) (pte & _PAGE_PADDR_4V)
#define pgd_index_l4(addr) (((addr) >> PGDIR_SHIFT_L4) & (PTRS_PER_PGD - 1))
#define pgd_offset_l4(pgdir,addr) ((unsigned long) \
((pgd_t *)pgdir + pgd_index_l4(addr)))
#define pgd_index_l3(addr) (((addr) >> PGDIR_SHIFT_L3) & (PTRS_PER_PGD - 1))
#define pgd_offset_l3(pgdir,addr) ((unsigned long) \
((pgd_t *)pgdir + pgd_index_l3(addr)))
#define pud_index(addr) (((addr) >> PUD_SHIFT) & (PTRS_PER_PUD - 1))
#define pud_offset(pgdp, addr) ((unsigned long) \
((pud_t *)pgdp + pud_index(addr)))
#define pud_large(pud) (pud & _PAGE_PUD_HUGE)
#define pmd_index(addr) (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1))
#define pmd_offset(pudp, addr) ((unsigned long) \
((pmd_t *)pudp + pmd_index(addr)))
#define pmd_large(pmd) (pmd & _PAGE_PMD_HUGE)
#define pte_index(addr) (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
#define pte_offset(pmdp, addr) ((unsigned long) \
((pte_t *)(pte_to_pa(pmdp) + pte_index(addr))))
#define pte_present(pte) (pte & _PAGE_PRESENT_4V)
#endif /* sparc64 */
/*
* The function of dependence on machine
*/
static inline int stub_true() { return TRUE; }
static inline int stub_true_ul(unsigned long x) { return TRUE; }
static inline int stub_false() { return FALSE; }
unsigned long get_kaslr_offset_general(unsigned long vaddr);
#define paddr_to_vaddr_general(X) ((X) + PAGE_OFFSET)
#ifdef __aarch64__
int get_phys_base_arm64(void);
int get_machdep_info_arm64(void);
unsigned long long vaddr_to_paddr_arm64(unsigned long vaddr);
int get_versiondep_info_arm64(void);
int get_xen_basic_info_arm64(void);
int get_xen_info_arm64(void);
#define paddr_to_vaddr_arm64(X) (((X) - info->phys_base) | PAGE_OFFSET)
#define find_vmemmap() stub_false()
#define vaddr_to_paddr(X) vaddr_to_paddr_arm64(X)
#define paddr_to_vaddr(X) paddr_to_vaddr_arm64(X)
#define get_phys_base() get_phys_base_arm64()
#define get_machdep_info() get_machdep_info_arm64()
#define get_versiondep_info() get_versiondep_info_arm64()
#define get_kaslr_offset(X) get_kaslr_offset_general(X)
#define get_xen_basic_info_arch(X) get_xen_basic_info_arm64(X)
#define get_xen_info_arch(X) get_xen_info_arm64(X)
#define is_phys_addr(X) stub_true_ul(X)
#define arch_crashkernel_mem_size() stub_false()
#endif /* aarch64 */
#ifdef __arm__
int get_phys_base_arm(void);
int get_machdep_info_arm(void);
unsigned long long vaddr_to_paddr_arm(unsigned long vaddr);
#define find_vmemmap() stub_false()
#define get_phys_base() get_phys_base_arm()
#define get_machdep_info() get_machdep_info_arm()
#define get_versiondep_info() stub_true()
#define get_kaslr_offset(X) stub_false()
#define vaddr_to_paddr(X) vaddr_to_paddr_arm(X)
#define paddr_to_vaddr(X) paddr_to_vaddr_general(X)
#define is_phys_addr(X) stub_true_ul(X)
#define arch_crashkernel_mem_size() stub_false()
#endif /* arm */
#ifdef __x86__
int get_machdep_info_x86(void);
int get_versiondep_info_x86(void);
unsigned long long vaddr_to_paddr_x86(unsigned long vaddr);
#define find_vmemmap() stub_false()
#define get_phys_base() stub_true()
#define get_machdep_info() get_machdep_info_x86()
#define get_versiondep_info() get_versiondep_info_x86()
#define get_kaslr_offset(X) stub_false()
#define vaddr_to_paddr(X) vaddr_to_paddr_x86(X)
#define paddr_to_vaddr(X) paddr_to_vaddr_general(X)
#define is_phys_addr(X) stub_true_ul(X)
#define arch_crashkernel_mem_size() stub_false()
#endif /* x86 */
#ifdef __x86_64__
unsigned long get_kaslr_offset_x86_64(unsigned long vaddr);
int get_phys_base_x86_64(void);
int get_machdep_info_x86_64(void);
int get_versiondep_info_x86_64(void);
unsigned long long vtop4_x86_64(unsigned long vaddr);
unsigned long long vtop4_x86_64_pagetable(unsigned long vaddr, unsigned long pagetable);
#define find_vmemmap() find_vmemmap_x86_64()
#define get_phys_base() get_phys_base_x86_64()
#define get_machdep_info() get_machdep_info_x86_64()
#define get_versiondep_info() get_versiondep_info_x86_64()
#define get_kaslr_offset(X) get_kaslr_offset_x86_64(X)
#define vaddr_to_paddr(X) vtop4_x86_64(X)
#define paddr_to_vaddr(X) paddr_to_vaddr_general(X)
#define is_phys_addr(X) stub_true_ul(X)
#define arch_crashkernel_mem_size() stub_false()
#endif /* x86_64 */
#ifdef __powerpc64__ /* powerpc64 */
int get_machdep_info_ppc64(void);
int get_versiondep_info_ppc64(void);
unsigned long long vaddr_to_paddr_ppc64(unsigned long vaddr);
int arch_crashkernel_mem_size_ppc64(void);
#define find_vmemmap() stub_false()
#define get_phys_base() stub_true()
#define get_machdep_info() get_machdep_info_ppc64()
#define get_versiondep_info() get_versiondep_info_ppc64()
#define get_kaslr_offset(X) stub_false()
#define vaddr_to_paddr(X) vaddr_to_paddr_ppc64(X)
#define paddr_to_vaddr(X) paddr_to_vaddr_general(X)
#define is_phys_addr(X) stub_true_ul(X)
#define arch_crashkernel_mem_size() arch_crashkernel_mem_size_ppc64()
#endif /* powerpc64 */
#ifdef __powerpc32__ /* powerpc32 */
int get_machdep_info_ppc(void);
unsigned long long vaddr_to_paddr_ppc(unsigned long vaddr);
#define find_vmemmap() stub_false()
#define get_phys_base() stub_true()
#define get_machdep_info() get_machdep_info_ppc()
#define get_versiondep_info() stub_true()
#define get_kaslr_offset(X) stub_false()
#define vaddr_to_paddr(X) vaddr_to_paddr_ppc(X)
#define paddr_to_vaddr(X) paddr_to_vaddr_general(X)
#define is_phys_addr(X) stub_true_ul(X)
#define arch_crashkernel_mem_size() stub_false()
#endif /* powerpc32 */
#ifdef __s390x__ /* s390x */
int get_machdep_info_s390x(void);
unsigned long long vaddr_to_paddr_s390x(unsigned long vaddr);
int is_iomem_phys_addr_s390x(unsigned long addr);
#define find_vmemmap() stub_false()
#define get_phys_base() stub_true()
#define get_machdep_info() get_machdep_info_s390x()
#define get_versiondep_info() stub_true()
#define get_kaslr_offset(X) get_kaslr_offset_general(X)
#define vaddr_to_paddr(X) vaddr_to_paddr_s390x(X)
#define paddr_to_vaddr(X) paddr_to_vaddr_general(X)
#define is_phys_addr(X) is_iomem_phys_addr_s390x(X)
#define arch_crashkernel_mem_size() stub_false()
#endif /* s390x */
#ifdef __ia64__ /* ia64 */
int get_phys_base_ia64(void);
int get_machdep_info_ia64(void);
unsigned long long vaddr_to_paddr_ia64(unsigned long vaddr);
#define find_vmemmap() stub_false()
#define get_machdep_info() get_machdep_info_ia64()
#define get_phys_base() get_phys_base_ia64()
#define get_versiondep_info() stub_true()
#define get_kaslr_offset(X) stub_false()
#define vaddr_to_paddr(X) vaddr_to_paddr_ia64(X)
#define paddr_to_vaddr(X) paddr_to_vaddr_general(X)
#define VADDR_REGION(X) (((unsigned long)(X)) >> REGION_SHIFT)
#define is_phys_addr(X) stub_true_ul(X)
#define arch_crashkernel_mem_size() stub_false()
#endif /* ia64 */
#ifdef __sparc64__ /* sparc64 */
int get_versiondep_info_sparc64(void);
int get_phys_base_sparc64(void);
unsigned long long vaddr_to_paddr_sparc64(unsigned long vaddr);
#define find_vmemmap() stub_false()
#define get_machdep_info() TRUE
#define get_phys_base() get_phys_base_sparc64()
#define get_versiondep_info() get_versiondep_info_sparc64()
#define vaddr_to_paddr(X) vaddr_to_paddr_sparc64(X)
#define paddr_to_vaddr(X) paddr_to_vaddr_general(X)
#define is_phys_addr(X) stub_true_ul(X)
#define arch_crashkernel_mem_size() stub_false()
#endif /* sparc64 */
typedef unsigned long long mdf_pfn_t;
#ifndef ARCH_PFN_OFFSET
#define ARCH_PFN_OFFSET 0
#endif
#define paddr_to_pfn(X) \
(((unsigned long long)(X) >> PAGESHIFT()) - ARCH_PFN_OFFSET)
#define pfn_to_paddr(X) \
(((mdf_pfn_t)(X) + ARCH_PFN_OFFSET) << PAGESHIFT())
/* Format of Xen crash info ELF note */
typedef struct {
unsigned long xen_major_version;
unsigned long xen_minor_version;
unsigned long xen_extra_version;
unsigned long xen_changeset;
unsigned long xen_compiler;
unsigned long xen_compile_date;
unsigned long xen_compile_time;
unsigned long tainted;
} xen_crash_info_com_t;
typedef struct {
xen_crash_info_com_t com;
#if defined(__x86__) || defined(__x86_64__)
/* added by changeset 2b43fb3afb3e: */
unsigned long dom0_pfn_to_mfn_frame_list_list;
#endif
#if defined(__ia64__)
/* added by changeset d7c3b12014b3: */
unsigned long dom0_mm_pgd_mfn;
#endif
} xen_crash_info_t;
/* changeset 439a3e9459f2 added xen_phys_start
* to the middle of the struct... */
typedef struct {
xen_crash_info_com_t com;
#if defined(__x86__) || defined(__x86_64__)
unsigned long xen_phys_start;
unsigned long dom0_pfn_to_mfn_frame_list_list;
#endif
#if defined(__ia64__)
unsigned long dom0_mm_pgd_mfn;
#endif
} xen_crash_info_v2_t;
struct mem_map_data {
mdf_pfn_t pfn_start;
mdf_pfn_t pfn_end;
unsigned long mem_map;
};
struct dump_bitmap {
int fd;
int no_block;
char *file_name;
char *buf;
off_t offset;
};
struct cache_data {
int fd;
char *file_name;
char *buf;
size_t buf_size;
size_t cache_size;
off_t offset;
};
typedef unsigned long int ulong;
typedef unsigned long long int ulonglong;
/*
* for parallel process
*/
#define PAGE_FLAG_NUM (20)
#define PAGE_DATA_NUM (5)
#define WAIT_TIME (60 * 10)
#define PTHREAD_FAIL ((void *)-2)
#define THREAD_REGION (200 * 1024)
struct mmap_cache {
char *mmap_buf;
off_t mmap_start_offset;
off_t mmap_end_offset;
};
enum {
FLAG_UNUSED,
FLAG_READY,
FLAG_FILLING
};
struct page_flag {
mdf_pfn_t pfn;
char zero;
char ready;
short index;
struct page_flag *next;
};
struct page_data
{
long size;
unsigned char *buf;
int flags;
int used;
};
struct thread_args {
int thread_num;
unsigned long len_buf_out;
struct cycle *cycle;
struct page_data *page_data_buf;
struct page_flag *page_flag_buf;
};
/*
* makedumpfile header
* For re-arranging the dump data on different architecture, all the
* variables are defined by 64bits. The size of signature is aligned
* to 64bits, and change the values to big endian.
*/
#define MAKEDUMPFILE_SIGNATURE "makedumpfile"
#define NUM_SIG_MDF (sizeof(MAKEDUMPFILE_SIGNATURE) - 1)
#define SIZE_SIG_MDF roundup(sizeof(char) * NUM_SIG_MDF, 8)
#define SIG_LEN_MDF (SIZE_SIG_MDF / sizeof(char))
#define MAX_SIZE_MDF_HEADER (4096) /* max size of makedumpfile_header */
#define TYPE_FLAT_HEADER (1) /* type of flattened format */
#define VERSION_FLAT_HEADER (1) /* current version of flattened format */
#define END_FLAG_FLAT_HEADER (-1)
struct makedumpfile_header {
char signature[SIG_LEN_MDF]; /* = "makedumpfile" */
int64_t type;
int64_t version;
};
struct makedumpfile_data_header {
int64_t offset;
int64_t buf_size;
};
struct splitting_info {
char *name_dumpfile;
int fd_bitmap;
mdf_pfn_t start_pfn;
mdf_pfn_t end_pfn;
off_t offset_eraseinfo;
unsigned long size_eraseinfo;
};
struct parallel_info {
int fd_memory;
int fd_bitmap_memory;
int fd_bitmap;
unsigned char *buf;
unsigned char *buf_out;
struct mmap_cache *mmap_cache;
z_stream zlib_stream;
#ifdef USELZO
lzo_bytep wrkmem;
#endif
};
struct ppc64_vmemmap {
unsigned long phys;
unsigned long virt;
};
struct DumpInfo {
int32_t kernel_version; /* version of first kernel*/
struct timeval timestamp;
struct utsname system_utsname;
/*
* General info:
*/
int dump_level; /* current dump level */
int max_dump_level; /* maximum dump level */
int num_dump_level; /* number of dump level */
int array_dump_level[NUM_ARRAY_DUMP_LEVEL];
int flag_compress; /* flag of compression */
int flag_lzo_support; /* flag of LZO compression support */
int flag_elf_dumpfile; /* flag of creating ELF dumpfile */
int flag_generate_vmcoreinfo;/* flag of generating vmcoreinfo file */
int flag_read_vmcoreinfo; /* flag of reading vmcoreinfo file */
int flag_show_usage; /* flag of showing usage */
int flag_show_version; /* flag of showing version */
int flag_check_params; /* only check parameters */
int flag_flatten; /* flag of outputting flattened
format to a standard out */
int flag_rearrange; /* flag of creating dumpfile from
flattened format */
int flag_split; /* splitting vmcore */
int flag_cyclic; /* multi-cycle processing is necessary */
int flag_usemmap; /* /proc/vmcore supports mmap(2) */
int flag_reassemble; /* reassemble multiple dumpfiles into one */
int flag_refiltering; /* refilter from kdump-compressed file */
int flag_force; /* overwrite existing stuff */
int flag_exclude_xen_dom;/* exclude Domain-U from xen-kdump */
int flag_dmesg; /* dump the dmesg log out of the vmcore file */
int flag_partial_dmesg; /* dmesg dump only from the last cleared index*/
int flag_mem_usage; /*show the page number of memory in different use*/
int flag_use_printk_log; /* did we read printk_log symbol name? */
int flag_use_printk_ringbuffer; /* using lockless printk ringbuffer? */
int flag_nospace; /* the flag of "No space on device" error */
int flag_vmemmap; /* kernel supports vmemmap address space */
int flag_excludevm; /* -e - excluding unused vmemmap pages */
int flag_use_count; /* _refcount is named _count in struct page */
unsigned long vaddr_for_vtop; /* virtual address for debugging */
long page_size; /* size of page */
long page_shift;
mdf_pfn_t max_mapnr; /* number of page descriptor */
unsigned long page_offset;
unsigned long section_size_bits;
unsigned long max_physmem_bits;
unsigned long sections_per_root;
unsigned long phys_base;
unsigned long kernel_start;
unsigned long vmalloc_start;
unsigned long vmalloc_end;
unsigned long vmemmap_start;
unsigned long vmemmap_end;
int vmemmap_psize;
int vmemmap_cnt;
struct ppc64_vmemmap *vmemmap_list;
unsigned long kaslr_offset;
/*
* page table info for ppc64
*/
int cur_mmu_type;
int ptrs_per_pgd;
uint l4_index_size;
uint l3_index_size;
uint l2_index_size;
uint l1_index_size;
uint ptrs_per_l4;
uint ptrs_per_l3;
uint ptrs_per_l2;
uint ptrs_per_l1;
uint l4_shift;
uint l3_shift;
uint l2_shift;
uint l1_shift;
uint pte_rpn_shift;
ulong pte_rpn_mask;
ulong pgd_masked_bits;
ulong pud_masked_bits;
ulong pmd_masked_bits;
ulong kernel_pgd;
char *page_buf; /* Page buffer to read page tables */
/*
* Filter config file containing filter commands to filter out kernel
* data from vmcore.
*/
char *name_filterconfig;
FILE *file_filterconfig;
/*
* Filter config file containing eppic language filtering rules
* to filter out kernel data from vmcore
*/
char *name_eppic_config;
/*
* diskdimp info:
*/
int block_order;
off_t offset_bitmap1;
unsigned long len_bitmap; /* size of bitmap(1st and 2nd) */
struct dump_bitmap *bitmap1;
struct dump_bitmap *bitmap2;
struct disk_dump_header *dump_header;
struct kdump_sub_header sub_header;
/*
* ELF header info:
*/
unsigned int num_load_dumpfile;
size_t offset_load_dumpfile;
/*
* mem_map info:
*/
unsigned int num_mem_map;
struct mem_map_data *mem_map_data;
int fd_vmlinux;
char *name_vmlinux;
int fd_xen_syms;
char *name_xen_syms;
/*
* Dump memory image info:
*/
int fd_memory;
char *name_memory;
struct disk_dump_header *dh_memory;
struct kdump_sub_header *kh_memory;
struct dump_bitmap *bitmap_memory;
unsigned long *valid_pages;
/*
* Dump file info:
*/
int fd_dumpfile;
char *name_dumpfile;
int num_dumpfile;
struct splitting_info *splitting_info;
struct parallel_info *parallel_info;
/*
* bitmap info:
*/
int fd_bitmap;
char *name_bitmap;
/*
* vmcoreinfo file info:
*/
FILE *file_vmcoreinfo;
char *name_vmcoreinfo; /* vmcoreinfo file */
char release[STRLEN_OSRELEASE];
int read_text_vmcoreinfo;
/*
* ELF NOTE section in dump memory image info:
*/
off_t offset_note_dumpfile;
/*
* erased information in dump memory image info:
*/
unsigned long size_elf_eraseinfo;
/*
* for Xen extraction
*/
union { /* Both versions of Xen crash info: */
xen_crash_info_com_t *com; /* common fields */
xen_crash_info_t *v1; /* without xen_phys_start */
xen_crash_info_v2_t *v2; /* changeset 439a3e9459f2 */
} xen_crash_info;
int xen_crash_info_v; /* Xen crash info version:
* 0 .. xen_crash_info_com_t
* 1 .. xen_crash_info_t
* 2 .. xen_crash_info_v2_t */
mdf_pfn_t dom0_mapnr; /* The number of page in domain-0.
* Different from max_mapnr.
* max_mapnr is the number of page
* in system. */
unsigned long xen_phys_start;
unsigned long xen_heap_start; /* start mfn of xen heap area */
unsigned long xen_heap_end; /* end mfn(+1) of xen heap area */
unsigned long frame_table_vaddr;
unsigned long max_page;
unsigned long alloc_bitmap;
unsigned long dom0;
unsigned long p2m_frames;
unsigned long *p2m_mfn_frame_list;
int num_domain;
struct domain_list *domain_list;
#if defined(__x86_64__)
unsigned long xen_virt_start;
unsigned long directmap_virt_end;
#endif
/*
* for splitting
*/
mdf_pfn_t split_start_pfn;
mdf_pfn_t split_end_pfn;
/*
* for cyclic processing
*/
char *working_dir; /* working directory for bitmap */
mdf_pfn_t num_dumpable;
unsigned long bufsize_cyclic;
unsigned long pfn_cyclic;
/*
* for mmap
*/
char *mmap_buf;
off_t mmap_start_offset;
off_t mmap_end_offset;
off_t mmap_region_size;
/*
* sadump info:
*/
int flag_sadump_diskset;
enum sadump_format_type flag_sadump; /* sadump format type */
/*
* for filtering free pages managed by buddy system:
*/
int (*page_is_buddy)(unsigned long flags, unsigned int _mapcount,
unsigned long private, unsigned int _count);
/*
* for cyclic_splitting mode, setup splitblock_size
*/
long long splitblock_size;
/*
* for parallel process
*/
int num_threads;
int num_buffers;
pthread_t **threads;
struct thread_args *kdump_thread_args;
struct page_data *page_data_buf;
struct page_flag **page_flag_buf;
sem_t page_flag_buf_sem;
pthread_rwlock_t usemmap_rwlock;
mdf_pfn_t current_pfn;
pthread_mutex_t current_pfn_mutex;
pthread_mutex_t page_data_mutex;
pthread_mutex_t filter_mutex;
};
extern struct DumpInfo *info;
/*
* for cyclic_splitting mode,Manage memory by splitblock
*/
#define DEFAULT_SPLITBLOCK_SIZE (1LL << 30)
struct SplitBlock {
char *table;
long long num;
long long page_per_splitblock;
int entry_size; /* counted by byte */
};
/*
* kernel VM-related data
*/
struct vm_table {
int numnodes;
unsigned long *node_online_map;
int node_online_map_len;
unsigned int mem_flags;
};
extern struct vm_table vt;
/*
* Loaded module symbols info.
*/
#define MOD_NAME_LEN 64
#define IN_RANGE(addr, mbase, sz) \
(((unsigned long)(addr) >= (unsigned long)mbase) \
&& ((unsigned long)addr < (unsigned long)(mbase + sz)))
struct symbol_info {
char *name;
unsigned long long value;
};
struct module_info {
char name[MOD_NAME_LEN];
unsigned int num_syms;
struct symbol_info *sym_info;
};
struct symbol_table {
unsigned long long mem_map;
unsigned long long vmem_map;
unsigned long long mem_section;
unsigned long long pkmap_count;
unsigned long long pkmap_count_next;
unsigned long long system_utsname;
unsigned long long init_uts_ns;
unsigned long long _stext;
unsigned long long swapper_pg_dir;
unsigned long long init_level4_pgt;
unsigned long long level4_kernel_pgt;
unsigned long long init_top_pgt;
unsigned long long vmlist;
unsigned long long vmap_area_list;
unsigned long long phys_base;
unsigned long long node_online_map;
unsigned long long node_states;
unsigned long long node_memblk;
unsigned long long node_data;
unsigned long long pgdat_list;
unsigned long long contig_page_data;
unsigned long long prb;
unsigned long long log_buf;
unsigned long long log_buf_len;
unsigned long long log_end;
unsigned long long log_first_idx;
unsigned long long clear_idx;
unsigned long long log_next_idx;
unsigned long long max_pfn;
unsigned long long node_remap_start_vaddr;
unsigned long long node_remap_end_vaddr;
unsigned long long node_remap_start_pfn;
unsigned long long free_huge_page;
/*
* for Xen extraction
*/
unsigned long long dom_xen;
unsigned long long dom_io;
unsigned long long domain_list;
unsigned long long frame_table;
unsigned long long xen_heap_start;
unsigned long long pgd_l2;
unsigned long long pgd_l3;
unsigned long long pgd_l4;
unsigned long long xenheap_phys_end;
unsigned long long xen_pstart;
unsigned long long frametable_pg_dir;
unsigned long long max_page;
unsigned long long alloc_bitmap;
/*
* for loading module symbol data
*/
unsigned long long modules;
/*
* vmalloc_start address on s390x arch
*/
unsigned long long high_memory;
/*
* for sadump
*/
unsigned long long linux_banner;
unsigned long long bios_cpu_apicid;
unsigned long long x86_bios_cpu_apicid;
unsigned long long x86_bios_cpu_apicid_early_ptr;
unsigned long long x86_bios_cpu_apicid_early_map;
unsigned long long crash_notes;
unsigned long long __per_cpu_offset;
unsigned long long __per_cpu_load;
unsigned long long cpu_online_mask;
unsigned long long __cpu_online_mask;
unsigned long long kexec_crash_image;
unsigned long long divide_error;
unsigned long long idt_table;
unsigned long long saved_command_line;
unsigned long long pti_init;
unsigned long long kaiser_init;
/*
* symbols on ppc64 arch
*/
unsigned long long vmemmap_list;
unsigned long long mmu_vmemmap_psize;
unsigned long long mmu_psize_defs;
unsigned long long cpu_pgd;
unsigned long long demote_segment_4k;
unsigned long long cur_cpu_spec;
/*
* symbols on sparc64 arch
*/
unsigned long long vmemmap_table;
};
struct size_table {
long page;
long mem_section;
long pglist_data;
long zone;
long free_area;
long list_head;
long node_memblk_s;
long nodemask_t;
long printk_log;
/*
* for lockless printk ringbuffer
*/
long printk_ringbuffer;
long prb_desc;
long printk_info;
/*
* for Xen extraction
*/
long page_info;
long domain;
/*
* for loading module symbol data
*/
long module;
/*
* for sadump
*/
long percpu_data;
long elf_prstatus;
long user_regs_struct;
long cpumask;
long cpumask_t;
long kexec_segment;
long elf64_hdr;
/*
* symbols on ppc64 arch
*/
long vmemmap_backing;
long mmu_psize_def;
long cpu_spec;
long pageflags;
};
struct offset_table {
struct page {
long flags;
long _refcount;
long mapping;
long lru;
long _mapcount;
long private;
long compound_dtor;
long compound_order;
long compound_head;
} page;
struct mem_section {
long section_mem_map;
} mem_section;
struct zone {
long free_pages;
long free_area;
long vm_stat;
long spanned_pages;
} zone;
struct pglist_data {
long node_zones;
long nr_zones;
long node_mem_map;
long node_start_pfn;
long node_spanned_pages;
long pgdat_next;
} pglist_data;
struct free_area {
long free_list;
} free_area;
struct list_head {
long next;
long prev;
} list_head;
struct node_memblk_s {
long start_paddr;
long size;
long nid;
} node_memblk_s;
struct vm_struct {
long addr;
} vm_struct;
struct vmap_area {
long va_start;
long list;
} vmap_area;
/*
* for Xen extraction
*/
struct page_info {
long count_info;
long _domain;
} page_info;
struct domain {
long domain_id;
long next_in_list;
} domain;
/*
* for loading module symbol data
*/
struct module {
long list;
long name;
long module_core;
long core_size;
long module_init;
long init_size;
long num_symtab;
long symtab;
long strtab;
} module;
/*
* for loading elf_prstaus symbol data
*/
struct elf_prstatus_s {
long pr_reg;
} elf_prstatus;
/*
* for loading user_regs_struct symbol data
*/
struct user_regs_struct_s {
long r15;
long r14;
long r13;
long r12;
long bp;
long bx;
long r11;
long r10;
long r9;
long r8;
long ax;
long cx;
long dx;
long si;
long di;
long orig_ax;
long ip;
long cs;
long flags;
long sp;
long ss;
long fs_base;
long gs_base;
long ds;
long es;
long fs;
long gs;
} user_regs_struct;
struct kimage_s {
long segment;
} kimage;
struct kexec_segment_s {
long mem;
} kexec_segment;
struct elf64_hdr_s {
long e_phnum;
long e_phentsize;
long e_phoff;
} elf64_hdr;
struct elf64_phdr_s {
long p_type;
long p_offset;
long p_paddr;
long p_memsz;
} elf64_phdr;
struct printk_log_s {
long ts_nsec;
long len;
long text_len;
} printk_log;
/*
* for lockless printk ringbuffer
*/
struct printk_ringbuffer_s {
long desc_ring;
long text_data_ring;
long fail;
} printk_ringbuffer;
struct prb_desc_ring_s {
long count_bits;
long descs;
long infos;
long head_id;
long tail_id;
} prb_desc_ring;
struct prb_desc_s {
long state_var;
long text_blk_lpos;
} prb_desc;
struct prb_data_blk_lpos_s {
long begin;
long next;
} prb_data_blk_lpos;
struct printk_info_s {
long seq;
long ts_nsec;
long text_len;
long caller_id;
long dev_info;
} printk_info;
struct prb_data_ring_s {
long size_bits;
long data;
long head_lpos;
long tail_lpos;
} prb_data_ring;
struct atomic_long_t_s {
long counter;
} atomic_long_t;
/*
* symbols on ppc64 arch
*/
struct mmu_psize_def_s {
long shift;
} mmu_psize_def;
struct vmemmap_backing_s {
long phys;
long virt_addr;
long list;
} vmemmap_backing;
struct cpu_spec_s {
long mmu_features;
} cpu_spec;
};
/*
* The number of array
*/
struct array_table {
/*
* Symbol
*/
long node_data;
long pgdat_list;
long mem_section;
long node_memblk;
long __per_cpu_offset;
long node_remap_start_pfn;
/*
* Structure
*/
struct zone_at {
long free_area;
} zone;
struct free_area_at {
long free_list;
} free_area;
struct kimage_at {
long segment;
} kimage;
};
struct number_table {
long NR_FREE_PAGES;
long N_ONLINE;
long pgtable_l5_enabled;
long sme_mask;
/*
* Page flags
*/
long PG_lru;
long PG_private;
long PG_head;
long PG_head_mask;
long PG_swapcache;
long PG_swapbacked;
long PG_buddy;
long PG_slab;
long PG_hwpoison;
long PAGE_BUDDY_MAPCOUNT_VALUE;
long PAGE_OFFLINE_MAPCOUNT_VALUE;
long SECTION_SIZE_BITS;
long MAX_PHYSMEM_BITS;
long HUGETLB_PAGE_DTOR;
long phys_base;
long KERNEL_IMAGE_SIZE;
#ifdef __aarch64__
long VA_BITS;
long TCR_EL1_T1SZ;
unsigned long PHYS_OFFSET;
unsigned long kimage_voffset;
#endif
};
struct srcfile_table {
/*
* typedef
*/
char pud_t[LEN_SRCFILE];
};
/*
* This structure records where the vmemmap page structures reside, and which
* pfn's are represented by those page structures.
* The actual pages containing the page structures are 2MB pages, so their pfn's
* will all be multiples of 0x200.
* The page structures are 7 64-bit words in length (0x38) so they overlap the
* 2MB boundaries. Each page structure represents a 4k page.
* A 4k page is here defined to be represented on a 2MB page if its page structure
* 'ends' on that page (even if it began on the page before).
*/
struct vmap_pfns {
struct vmap_pfns *next;
struct vmap_pfns *prev;
/*
* These (start/end) are literal pfns of 2MB pages on which the page
* structures reside, not start and end+1.
*/
unsigned long vmap_pfn_start;
unsigned long vmap_pfn_end;
/*
* These (start/end) are literal pfns represented on these pages, not
* start and end+1.
* The starting page struct is at least partly on the first page; the
* ending page struct is entirely on the last page.
*/
unsigned long rep_pfn_start;
unsigned long rep_pfn_end;
};
/* for saving a list of pfns to a buffer, and then to a file if necessary */
struct save_control {
int sc_fd;
char *sc_filename;
char *sc_buf;
long sc_buflen; /* length of buffer never changes */
long sc_bufposition; /* offset of next slot for write, or next to be read */
long sc_filelen; /* length of valid data written */
long sc_fileposition; /* offset in file of next entry to be read */
};
/* one entry in the buffer and file */
struct sc_entry {
unsigned long startpfn;
unsigned long numpfns;
};
extern struct symbol_table symbol_table;
extern struct size_table size_table;
extern struct offset_table offset_table;
extern struct array_table array_table;
extern struct number_table number_table;
extern struct srcfile_table srcfile_table;
struct memory_range {
unsigned long long start, end;
};
#define CRASH_RESERVED_MEM_NR 8
extern struct memory_range crash_reserved_mem[CRASH_RESERVED_MEM_NR];
extern int crash_reserved_mem_nr;
unsigned long read_vmcoreinfo_symbol(char *str_symbol);
int readmem(int type_addr, unsigned long long addr, void *bufptr, size_t size);
int get_str_osrelease_from_vmlinux(void);
int read_vmcoreinfo_xen(void);
int exclude_xen_user_domain(void);
mdf_pfn_t get_num_dumpable(void);
int __read_disk_dump_header(struct disk_dump_header *dh, char *filename);
int read_disk_dump_header(struct disk_dump_header *dh, char *filename);
int read_kdump_sub_header(struct kdump_sub_header *kh, char *filename);
void close_vmcoreinfo(void);
int close_files_for_creating_dumpfile(void);
int iomem_for_each_line(char *match, int (*callback)(void *data, int nr,
char *str,
unsigned long base,
unsigned long length),
void *data);
int is_bigendian(void);
int get_symbol_info(void);
/*
* for Xen extraction
*/
struct domain_list {
unsigned long domain_addr;
unsigned int domain_id;
unsigned int pickled_id;
};
#define PAGES_PER_MAPWORD (sizeof(unsigned long) * 8)
#define MFNS_PER_FRAME (info->page_size / sizeof(unsigned long))
#ifdef __aarch64__
unsigned long long kvtop_xen_arm64(unsigned long kvaddr);
#define kvtop_xen(X) kvtop_xen_arm64(X)
#endif /* aarch64 */
#ifdef __arm__
#define kvtop_xen(X) FALSE
#define get_xen_basic_info_arch(X) FALSE
#define get_xen_info_arch(X) FALSE
#endif /* arm */
#ifdef __x86__
#define HYPERVISOR_VIRT_START_PAE (0xF5800000UL)
#define HYPERVISOR_VIRT_START (0xFC000000UL)
#define HYPERVISOR_VIRT_END (0xFFFFFFFFUL)
#define DIRECTMAP_VIRT_START (0xFF000000UL)
#define DIRECTMAP_VIRT_END (0xFFC00000UL)
#define FRAMETABLE_VIRT_START (0xF6800000UL)
#define is_xen_vaddr(x) \
((x) >= HYPERVISOR_VIRT_START_PAE && (x) < HYPERVISOR_VIRT_END)
#define is_direct(x) \
((x) >= DIRECTMAP_VIRT_START && (x) < DIRECTMAP_VIRT_END)
unsigned long long kvtop_xen_x86(unsigned long kvaddr);
#define kvtop_xen(X) kvtop_xen_x86(X)
int get_xen_basic_info_x86(void);
#define get_xen_basic_info_arch(X) get_xen_basic_info_x86(X)
int get_xen_info_x86(void);
#define get_xen_info_arch(X) get_xen_info_x86(X)
#endif /* __x86__ */
#ifdef __x86_64__
/* The architectural limit for physical addresses is 52 bits.
* Mask off bits 52-62 (available for OS use) and bit 63 (NX).
*/
#define ENTRY_MASK (~0xfff0000000000fffULL)
#define MAX_X86_64_FRAMES (info->page_size / sizeof(unsigned long))
#define PAGE_OFFSET_XEN_DOM0 (0xffff880000000000) /* different from linux */
#define HYPERVISOR_VIRT_START (0xffff800000000000)
#define HYPERVISOR_VIRT_END (0xffff880000000000)
#define DIRECTMAP_VIRT_START (0xffff830000000000)
#define DIRECTMAP_VIRT_END_V3 (0xffff840000000000)
#define DIRECTMAP_VIRT_END_V4 (0xffff880000000000)
#define DIRECTMAP_VIRT_END (info->directmap_virt_end)
#define XEN_VIRT_START (info->xen_virt_start)
#define XEN_VIRT_END (XEN_VIRT_START + (1UL << 30))
#define FRAMETABLE_VIRT_START_V3 0xffff82f600000000
#define FRAMETABLE_VIRT_START_V4_3 0xffff82e000000000
#define is_xen_vaddr(x) \
((x) >= HYPERVISOR_VIRT_START && (x) < HYPERVISOR_VIRT_END)
#define is_direct(x) \
((x) >= DIRECTMAP_VIRT_START && (x) < DIRECTMAP_VIRT_END)
#define is_xen_text(x) \
((x) >= XEN_VIRT_START && (x) < XEN_VIRT_END)
unsigned long long kvtop_xen_x86_64(unsigned long kvaddr);
#define kvtop_xen(X) kvtop_xen_x86_64(X)
int get_xen_basic_info_x86_64(void);
#define get_xen_basic_info_arch(X) get_xen_basic_info_x86_64(X)
int get_xen_info_x86_64(void);
#define get_xen_info_arch(X) get_xen_info_x86_64(X)
#endif /* __x86_64__ */
#ifdef __ia64__
#define HYPERVISOR_VIRT_START (0xe800000000000000)
#define HYPERVISOR_VIRT_END (0xf800000000000000)
#define DEFAULT_SHAREDINFO_ADDR (0xf100000000000000)
#define PERCPU_PAGE_SIZE 65536
#define PERCPU_ADDR (DEFAULT_SHAREDINFO_ADDR - PERCPU_PAGE_SIZE)
#define DIRECTMAP_VIRT_START (0xf000000000000000)
#define DIRECTMAP_VIRT_END PERCPU_ADDR
#define VIRT_FRAME_TABLE_ADDR (0xf300000000000000)
#define VIRT_FRAME_TABLE_END (0xf400000000000000)
#define is_xen_vaddr(x) \
((x) >= HYPERVISOR_VIRT_START && (x) < HYPERVISOR_VIRT_END)
#define is_direct(x) \
((x) >= DIRECTMAP_VIRT_START && (x) < DIRECTMAP_VIRT_END)
#define is_frame_table_vaddr(x) \
((x) >= VIRT_FRAME_TABLE_ADDR && (x) < VIRT_FRAME_TABLE_END)
#define PGDIR_SHIFT (PAGESHIFT() + 2 * (PAGESHIFT() - 3))
#define PTRS_PER_PGD (1UL << (PAGESHIFT() - 3))
#define PTRS_PER_PMD (1UL << (PAGESHIFT() - 3))
#define PTRS_PER_PTE (1UL << (PAGESHIFT() - 3))
#define IA64_MAX_PHYS_BITS 50
#define _PAGE_P (1)
#define _PFN_MASK (((1UL << IA64_MAX_PHYS_BITS) - 1) & ~0xfffUL)
unsigned long long kvtop_xen_ia64(unsigned long kvaddr);
#define kvtop_xen(X) kvtop_xen_ia64(X)
int get_xen_basic_info_ia64(void);
#define get_xen_basic_info_arch(X) get_xen_basic_info_ia64(X)
int get_xen_info_ia64(void);
#define get_xen_info_arch(X) get_xen_info_ia64(X)
#endif /* __ia64 */
#if defined(__powerpc64__) || defined(__powerpc32__) /* powerpcXX */
#define kvtop_xen(X) FALSE
#define get_xen_basic_info_arch(X) FALSE
#define get_xen_info_arch(X) FALSE
#endif /* powerpcXX */
#ifdef __s390x__ /* s390x */
#define kvtop_xen(X) FALSE
#define get_xen_basic_info_arch(X) FALSE
#define get_xen_info_arch(X) FALSE
#endif /* s390x */
#ifdef __sparc64__ /* sparc64 */
#define kvtop_xen(X) FALSE
#define get_xen_basic_info_arch(X) FALSE
#define get_xen_info_arch(X) FALSE
#endif /* sparc64 */
struct cycle {
mdf_pfn_t start_pfn;
mdf_pfn_t end_pfn;
/* for excluding multi-page regions */
mdf_pfn_t exclude_pfn_start;
mdf_pfn_t exclude_pfn_end;
mdf_pfn_t *exclude_pfn_counter;
};
static inline int
is_on(char *bitmap, mdf_pfn_t i)
{
return bitmap[i>>3] & (1 << (i & 7));
}
static inline int
is_cyclic_region(mdf_pfn_t pfn, struct cycle *cycle)
{
if (pfn < cycle->start_pfn || cycle->end_pfn <= pfn)
return FALSE;
else
return TRUE;
}
static inline int
is_dumpable_buffer(struct dump_bitmap *bitmap, mdf_pfn_t pfn, struct cycle *cycle)
{
if (!is_cyclic_region(pfn, cycle))
return FALSE;
else
return is_on(bitmap->buf, pfn - cycle->start_pfn);
}
static inline int
is_dumpable_file(struct dump_bitmap *bitmap, mdf_pfn_t pfn)
{
off_t offset;
ssize_t rcode;
if (pfn == 0 || bitmap->no_block != pfn/PFN_BUFBITMAP) {
offset = bitmap->offset + BUFSIZE_BITMAP*(pfn/PFN_BUFBITMAP);
if (lseek(bitmap->fd, offset, SEEK_SET) < 0 ) {
ERRMSG("Can't seek the bitmap(%s). %s\n",
bitmap->file_name, strerror(errno));
return FALSE;
}
rcode = read(bitmap->fd, bitmap->buf, BUFSIZE_BITMAP);
if (rcode != BUFSIZE_BITMAP)
ERRMSG("Can't read the bitmap(%s). %s\n",
bitmap->file_name, strerror(errno));
if (pfn == 0)
bitmap->no_block = 0;
else
bitmap->no_block = pfn/PFN_BUFBITMAP;
}
return is_on(bitmap->buf, pfn%PFN_BUFBITMAP);
}
static inline int
is_dumpable(struct dump_bitmap *bitmap, mdf_pfn_t pfn, struct cycle *cycle)
{
if (bitmap->fd < 0) {
return is_dumpable_buffer(bitmap, pfn, cycle);
} else {
return is_dumpable_file(bitmap, pfn);
}
}
static inline int
is_zero_page(unsigned char *buf, long page_size)
{
size_t i;
unsigned long long *vect = (unsigned long long *) buf;
long page_len = page_size / sizeof(unsigned long long);
for (i = 0; i < page_len; i++)
if (vect[i])
return FALSE;
return TRUE;
}
void write_vmcoreinfo_data(void);
int set_bit_on_1st_bitmap(mdf_pfn_t pfn, struct cycle *cycle);
int clear_bit_on_1st_bitmap(mdf_pfn_t pfn, struct cycle *cycle);
#ifdef __x86__
struct user_regs_struct {
unsigned long bx;
unsigned long cx;
unsigned long dx;
unsigned long si;
unsigned long di;
unsigned long bp;
unsigned long ax;
unsigned long ds;
unsigned long es;
unsigned long fs;
unsigned long gs;
unsigned long orig_ax;
unsigned long ip;
unsigned long cs;
unsigned long flags;
unsigned long sp;
unsigned long ss;
};
struct elf_prstatus {
char pad1[72];
struct user_regs_struct pr_reg;
char pad2[4];
};
#endif
#ifdef __x86_64__
struct user_regs_struct {
unsigned long r15;
unsigned long r14;
unsigned long r13;
unsigned long r12;
unsigned long bp;
unsigned long bx;
unsigned long r11;
unsigned long r10;
unsigned long r9;
unsigned long r8;
unsigned long ax;
unsigned long cx;
unsigned long dx;
unsigned long si;
unsigned long di;
unsigned long orig_ax;
unsigned long ip;
unsigned long cs;
unsigned long flags;
unsigned long sp;
unsigned long ss;
unsigned long fs_base;
unsigned long gs_base;
unsigned long ds;
unsigned long es;
unsigned long fs;
unsigned long gs;
};
struct elf_prstatus {
char pad1[112];
struct user_regs_struct pr_reg;
char pad2[4];
};
#endif
/*
* Below are options which getopt_long can recognize. From OPT_START options are
* non-printable, just used for implementation.
*/
#define OPT_BLOCK_ORDER 'b'
#define OPT_COMPRESS_ZLIB 'c'
#define OPT_DEBUG 'D'
#define OPT_DUMP_LEVEL 'd'
#define OPT_ELF_DUMPFILE 'E'
#define OPT_EXCLUDE_UNUSED_VM 'e'
#define OPT_FLATTEN 'F'
#define OPT_FORCE 'f'
#define OPT_GENERATE_VMCOREINFO 'g'
#define OPT_HELP 'h'
#define OPT_READ_VMCOREINFO 'i'
#define OPT_COMPRESS_LZO 'l'
#define OPT_COMPRESS_SNAPPY 'p'
#define OPT_REARRANGE 'R'
#define OPT_VERSION 'v'
#define OPT_EXCLUDE_XEN_DOM 'X'
#define OPT_VMLINUX 'x'
#define OPT_START 256
#define OPT_SPLIT OPT_START+0
#define OPT_REASSEMBLE OPT_START+1
#define OPT_XEN_SYMS OPT_START+2
#define OPT_XEN_VMCOREINFO OPT_START+3
#define OPT_XEN_PHYS_START OPT_START+4
#define OPT_MESSAGE_LEVEL OPT_START+5
#define OPT_VTOP OPT_START+6
#define OPT_DUMP_DMESG OPT_START+7
#define OPT_CONFIG OPT_START+8
#define OPT_DISKSET OPT_START+9
#define OPT_CYCLIC_BUFFER OPT_START+10
#define OPT_EPPIC OPT_START+11
#define OPT_NON_MMAP OPT_START+12
#define OPT_MEM_USAGE OPT_START+13
#define OPT_SPLITBLOCK_SIZE OPT_START+14
#define OPT_WORKING_DIR OPT_START+15
#define OPT_NUM_THREADS OPT_START+16
#define OPT_PARTIAL_DMESG OPT_START+17
#define OPT_CHECK_PARAMS OPT_START+18
/*
* Function Prototype.
*/
mdf_pfn_t get_num_dumpable_cyclic(void);
mdf_pfn_t get_num_dumpable_cyclic_withsplit(void);
int get_loads_dumpfile_cyclic(void);
int initial_xen(void);
unsigned long long ptom_xen(unsigned long long paddr);
unsigned long long get_free_memory_size(void);
int calculate_cyclic_buffer_size(void);
int prepare_splitblock_table(void);
int initialize_zlib(z_stream *stream, int level);
int finalize_zlib(z_stream *stream);
int parse_line(char *str, char *argv[]);
char *shift_string_left(char *s, int cnt);
char *clean_line(char *line);
char *strip_linefeeds(char *line);
char *strip_beginning_whitespace(char *line);
char *strip_ending_whitespace(char *line);
ulong htol(char *s, int flags);
int hexadecimal(char *s, int count);
int decimal(char *s, int count);
int file_exists(char *file);
int open_dump_file(void);
int dump_lockless_dmesg(void);
#endif /* MAKEDUMPFILE_H */
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