45 lines
1 KiB
C
45 lines
1 KiB
C
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/*
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* include/asm-x86_64/diskdump.h
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*
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* Copyright (C) Hitachi, Ltd. 2004
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* Written by Satoshi Oshima (oshima@sdl.hitachi.co.jp)
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*
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* Derived from include/asm-i386/diskdump.h
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* Copyright (c) 2004 FUJITSU LIMITED
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* Copyright (c) 2003 Red Hat, Inc. All rights reserved.
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*
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*/
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#ifndef _ASM_X86_64_DISKDUMP_H
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#define _ASM_X86_64_DISKDUMP_H
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#ifdef __KERNEL__
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#include <linux/elf.h>
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#include <asm/crashdump.h>
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const static int platform_supports_diskdump = 1;
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struct disk_dump_sub_header {
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elf_gregset_t elf_regs;
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};
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#define size_of_sub_header() ((sizeof(struct disk_dump_sub_header) + PAGE_SIZE - 1) / DUMP_BLOCK_SIZE)
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#define write_sub_header() \
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({ \
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int ret; \
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\
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ELF_CORE_COPY_REGS(dump_sub_header.elf_regs, (&myregs)); \
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clear_page(scratch); \
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memcpy(scratch, &dump_sub_header, sizeof(dump_sub_header)); \
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\
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if ((ret = write_blocks(dump_part, 2, scratch, 1)) >= 0) \
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ret = 1; /* size of sub header in page */; \
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ret; \
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})
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#endif /* __KERNEL__ */
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#endif /* _ASM_X86_64_DISKDUMP_H */
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