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60e64d46 VG |
1 | #ifndef LINUX_CRASH_DUMP_H |
2 | #define LINUX_CRASH_DUMP_H | |
3 | ||
4 | #ifdef CONFIG_CRASH_DUMP | |
5 | #include <linux/kexec.h> | |
6 | #include <linux/smp_lock.h> | |
7 | #include <linux/device.h> | |
8 | #include <linux/proc_fs.h> | |
9 | ||
666bfddb | 10 | #define ELFCORE_ADDR_MAX (-1ULL) |
36ac2617 IM |
11 | |
12 | #ifdef CONFIG_PROC_VMCORE | |
2030eae5 | 13 | extern unsigned long long elfcorehdr_addr; |
36ac2617 IM |
14 | #else |
15 | static const unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX; | |
16 | #endif | |
17 | ||
60e64d46 VG |
18 | extern ssize_t copy_oldmem_page(unsigned long, char *, size_t, |
19 | unsigned long, int); | |
4b6f5d20 | 20 | extern const struct file_operations proc_vmcore_operations; |
666bfddb VG |
21 | extern struct proc_dir_entry *proc_vmcore; |
22 | ||
79e03011 IC |
23 | /* Architecture code defines this if there are other possible ELF |
24 | * machine types, e.g. on bi-arch capable hardware. */ | |
25 | #ifndef vmcore_elf_check_arch_cross | |
26 | #define vmcore_elf_check_arch_cross(x) 0 | |
27 | #endif | |
28 | ||
29 | #define vmcore_elf_check_arch(x) (elf_check_arch(x) || vmcore_elf_check_arch_cross(x)) | |
30 | ||
95b68dec C |
31 | static inline int is_kdump_kernel(void) |
32 | { | |
33 | return (elfcorehdr_addr != ELFCORE_ADDR_MAX) ? 1 : 0; | |
34 | } | |
35 | #else /* !CONFIG_CRASH_DUMP */ | |
36 | static inline int is_kdump_kernel(void) { return 0; } | |
60e64d46 | 37 | #endif /* CONFIG_CRASH_DUMP */ |
95b68dec C |
38 | |
39 | extern unsigned long saved_max_pfn; | |
60e64d46 | 40 | #endif /* LINUX_CRASHDUMP_H */ |