35 lines
1.0 KiB
C
35 lines
1.0 KiB
C
#ifndef LINUX_CRASH_DUMP_H
|
|
#define LINUX_CRASH_DUMP_H
|
|
|
|
#ifdef CONFIG_CRASH_DUMP
|
|
#include <linux/kexec.h>
|
|
#include <linux/smp_lock.h>
|
|
#include <linux/device.h>
|
|
#include <linux/proc_fs.h>
|
|
|
|
#define ELFCORE_ADDR_MAX (-1ULL)
|
|
extern unsigned long long elfcorehdr_addr;
|
|
extern ssize_t copy_oldmem_page(unsigned long, char *, size_t,
|
|
unsigned long, int);
|
|
extern const struct file_operations proc_vmcore_operations;
|
|
extern struct proc_dir_entry *proc_vmcore;
|
|
|
|
/* Architecture code defines this if there are other possible ELF
|
|
* machine types, e.g. on bi-arch capable hardware. */
|
|
#ifndef vmcore_elf_check_arch_cross
|
|
#define vmcore_elf_check_arch_cross(x) 0
|
|
#endif
|
|
|
|
#define vmcore_elf_check_arch(x) (elf_check_arch(x) || vmcore_elf_check_arch_cross(x))
|
|
|
|
static inline int is_kdump_kernel(void)
|
|
{
|
|
return (elfcorehdr_addr != ELFCORE_ADDR_MAX) ? 1 : 0;
|
|
}
|
|
#else /* !CONFIG_CRASH_DUMP */
|
|
static inline int is_kdump_kernel(void) { return 0; }
|
|
#endif /* CONFIG_CRASH_DUMP */
|
|
|
|
extern unsigned long saved_max_pfn;
|
|
#endif /* LINUX_CRASHDUMP_H */
|