36ac26171a
fix build bug introduced by 95b68dec0d "calgary iommu: use the first
kernels TCE tables in kdump":
arch/x86/kernel/built-in.o: In function `calgary_iommu_init':
(.init.text+0x8399): undefined reference to `elfcorehdr_addr'
arch/x86/kernel/built-in.o: In function `calgary_iommu_init':
(.init.text+0x856c): undefined reference to `elfcorehdr_addr'
arch/x86/kernel/built-in.o: In function `detect_calgary':
(.init.text+0x8c68): undefined reference to `elfcorehdr_addr'
arch/x86/kernel/built-in.o: In function `detect_calgary':
(.init.text+0x8d0c): undefined reference to `elfcorehdr_addr'
make elfcorehdr_addr a generally available symbol.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
#ifndef LINUX_CRASH_DUMP_H
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#define LINUX_CRASH_DUMP_H
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#ifdef CONFIG_CRASH_DUMP
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#include <linux/kexec.h>
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#include <linux/smp_lock.h>
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#include <linux/device.h>
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#include <linux/proc_fs.h>
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#define ELFCORE_ADDR_MAX (-1ULL)
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#ifdef CONFIG_PROC_VMCORE
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extern unsigned long long elfcorehdr_addr;
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#else
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static const unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX;
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#endif
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extern ssize_t copy_oldmem_page(unsigned long, char *, size_t,
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unsigned long, int);
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extern const struct file_operations proc_vmcore_operations;
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extern struct proc_dir_entry *proc_vmcore;
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/* Architecture code defines this if there are other possible ELF
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* machine types, e.g. on bi-arch capable hardware. */
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#ifndef vmcore_elf_check_arch_cross
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#define vmcore_elf_check_arch_cross(x) 0
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#endif
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#define vmcore_elf_check_arch(x) (elf_check_arch(x) || vmcore_elf_check_arch_cross(x))
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static inline int is_kdump_kernel(void)
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{
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return (elfcorehdr_addr != ELFCORE_ADDR_MAX) ? 1 : 0;
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}
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#else /* !CONFIG_CRASH_DUMP */
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static inline int is_kdump_kernel(void) { return 0; }
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#endif /* CONFIG_CRASH_DUMP */
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extern unsigned long saved_max_pfn;
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#endif /* LINUX_CRASHDUMP_H */
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