diff options
Diffstat (limited to 'ANDROID_3.4.5/include/linux/crash_dump.h')
-rw-r--r-- | ANDROID_3.4.5/include/linux/crash_dump.h | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/ANDROID_3.4.5/include/linux/crash_dump.h b/ANDROID_3.4.5/include/linux/crash_dump.h deleted file mode 100644 index 37e4f8da..00000000 --- a/ANDROID_3.4.5/include/linux/crash_dump.h +++ /dev/null @@ -1,80 +0,0 @@ -#ifndef LINUX_CRASH_DUMP_H -#define LINUX_CRASH_DUMP_H - -#ifdef CONFIG_CRASH_DUMP -#include <linux/kexec.h> -#include <linux/proc_fs.h> -#include <linux/elf.h> - -#define ELFCORE_ADDR_MAX (-1ULL) -#define ELFCORE_ADDR_ERR (-2ULL) - -extern unsigned long long elfcorehdr_addr; -extern unsigned long long elfcorehdr_size; - -extern ssize_t copy_oldmem_page(unsigned long, char *, size_t, - unsigned long, int); - -/* 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 - -/* - * Architecture code can redefine this if there are any special checks - * needed for 64-bit ELF vmcores. In case of 32-bit only architecture, - * this can be set to zero. - */ -#ifndef vmcore_elf64_check_arch -#define vmcore_elf64_check_arch(x) (elf_check_arch(x) || vmcore_elf_check_arch_cross(x)) -#endif - -/* - * is_kdump_kernel() checks whether this kernel is booting after a panic of - * previous kernel or not. This is determined by checking if previous kernel - * has passed the elf core header address on command line. - * - * This is not just a test if CONFIG_CRASH_DUMP is enabled or not. It will - * return 1 if CONFIG_CRASH_DUMP=y and if kernel is booting after a panic of - * previous kernel. - */ - -static inline int is_kdump_kernel(void) -{ - return (elfcorehdr_addr != ELFCORE_ADDR_MAX) ? 1 : 0; -} - -/* is_vmcore_usable() checks if the kernel is booting after a panic and - * the vmcore region is usable. - * - * This makes use of the fact that due to alignment -2ULL is not - * a valid pointer, much in the vain of IS_ERR(), except - * dealing directly with an unsigned long long rather than a pointer. - */ - -static inline int is_vmcore_usable(void) -{ - return is_kdump_kernel() && elfcorehdr_addr != ELFCORE_ADDR_ERR ? 1 : 0; -} - -/* vmcore_unusable() marks the vmcore as unusable, - * without disturbing the logic of is_kdump_kernel() - */ - -static inline void vmcore_unusable(void) -{ - if (is_kdump_kernel()) - elfcorehdr_addr = ELFCORE_ADDR_ERR; -} - -#define HAVE_OLDMEM_PFN_IS_RAM 1 -extern int register_oldmem_pfn_is_ram(int (*fn)(unsigned long pfn)); -extern void unregister_oldmem_pfn_is_ram(void); - -#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 */ |