| #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) |
| |
| #ifdef CONFIG_PROC_VMCORE |
| extern unsigned long long elfcorehdr_addr; |
| #else |
| static const unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX; |
| #endif |
| |
| 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 */ |