projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 692f66f2 HB |
1 | #ifndef LINUX_CRASH_CORE_H |
| 2 | #define LINUX_CRASH_CORE_H | |
| 3 | ||
| 4 | #include <linux/linkage.h> | |
| 5 | #include <linux/elfcore.h> | |
| 6 | #include <linux/elf.h> | |
| 7 | ||
| 8 | #define CRASH_CORE_NOTE_NAME "CORE" | |
| 9 | #define CRASH_CORE_NOTE_HEAD_BYTES ALIGN(sizeof(struct elf_note), 4) | |
| 10 | #define CRASH_CORE_NOTE_NAME_BYTES ALIGN(sizeof(CRASH_CORE_NOTE_NAME), 4) | |
| 11 | #define CRASH_CORE_NOTE_DESC_BYTES ALIGN(sizeof(struct elf_prstatus), 4) | |
| 12 | ||
| cd0ae1d3 MH |
13 | /* |
| 14 | * The per-cpu notes area is a list of notes terminated by a "NULL" | |
| 15 | * note header. For kdump, the code in vmcore.c runs in the context | |
| 16 | * of the second kernel to combine them into one note. | |
| 17 | */ | |
| 692f66f2 HB |
18 | #define CRASH_CORE_NOTE_BYTES ((CRASH_CORE_NOTE_HEAD_BYTES * 2) + \ |
| 19 | CRASH_CORE_NOTE_NAME_BYTES + \ | |
| 20 | CRASH_CORE_NOTE_DESC_BYTES) | |
| 21 | ||
| 203e9e41 | 22 | #define VMCOREINFO_BYTES PAGE_SIZE |
| 692f66f2 HB |
23 | #define VMCOREINFO_NOTE_NAME "VMCOREINFO" |
| 24 | #define VMCOREINFO_NOTE_NAME_BYTES ALIGN(sizeof(VMCOREINFO_NOTE_NAME), 4) | |
| 25 | #define VMCOREINFO_NOTE_SIZE ((CRASH_CORE_NOTE_HEAD_BYTES * 2) + \ | |
| 26 | VMCOREINFO_NOTE_NAME_BYTES + \ | |
| 27 | VMCOREINFO_BYTES) | |
| 28 | ||
| 29 | typedef u32 note_buf_t[CRASH_CORE_NOTE_BYTES/4]; | |
| 30 | ||
| 1229384f | 31 | void crash_update_vmcoreinfo_safecopy(void *ptr); |
| 692f66f2 HB |
32 | void crash_save_vmcoreinfo(void); |
| 33 | void arch_crash_save_vmcoreinfo(void); | |
| 34 | __printf(1, 2) | |
| 35 | void vmcoreinfo_append_str(const char *fmt, ...); | |
| 36 | phys_addr_t paddr_vmcoreinfo_note(void); | |
| 37 | ||
| 38 | #define VMCOREINFO_OSRELEASE(value) \ | |
| 39 | vmcoreinfo_append_str("OSRELEASE=%s\n", value) | |
| 40 | #define VMCOREINFO_PAGESIZE(value) \ | |
| 41 | vmcoreinfo_append_str("PAGESIZE=%ld\n", value) | |
| 42 | #define VMCOREINFO_SYMBOL(name) \ | |
| 43 | vmcoreinfo_append_str("SYMBOL(%s)=%lx\n", #name, (unsigned long)&name) | |
| 44 | #define VMCOREINFO_SIZE(name) \ | |
| 45 | vmcoreinfo_append_str("SIZE(%s)=%lu\n", #name, \ | |
| 46 | (unsigned long)sizeof(name)) | |
| 47 | #define VMCOREINFO_STRUCT_SIZE(name) \ | |
| 48 | vmcoreinfo_append_str("SIZE(%s)=%lu\n", #name, \ | |
| 49 | (unsigned long)sizeof(struct name)) | |
| 50 | #define VMCOREINFO_OFFSET(name, field) \ | |
| 51 | vmcoreinfo_append_str("OFFSET(%s.%s)=%lu\n", #name, #field, \ | |
| 52 | (unsigned long)offsetof(struct name, field)) | |
| 53 | #define VMCOREINFO_LENGTH(name, value) \ | |
| 54 | vmcoreinfo_append_str("LENGTH(%s)=%lu\n", #name, (unsigned long)value) | |
| 55 | #define VMCOREINFO_NUMBER(name) \ | |
| 56 | vmcoreinfo_append_str("NUMBER(%s)=%ld\n", #name, (long)name) | |
| 57 | #define VMCOREINFO_CONFIG(name) \ | |
| 58 | vmcoreinfo_append_str("CONFIG_%s=y\n", #name) | |
| 59 | ||
| 203e9e41 | 60 | extern u32 *vmcoreinfo_note; |
| 692f66f2 | 61 | |
| 51dbd925 HB |
62 | Elf_Word *append_elf_note(Elf_Word *buf, char *name, unsigned int type, |
| 63 | void *data, size_t data_len); | |
| 64 | void final_note(Elf_Word *buf); | |
| 65 | ||
| 692f66f2 HB |
66 | int __init parse_crashkernel(char *cmdline, unsigned long long system_ram, |
| 67 | unsigned long long *crash_size, unsigned long long *crash_base); | |
| 68 | int parse_crashkernel_high(char *cmdline, unsigned long long system_ram, | |
| 69 | unsigned long long *crash_size, unsigned long long *crash_base); | |
| 70 | int parse_crashkernel_low(char *cmdline, unsigned long long system_ram, | |
| 71 | unsigned long long *crash_size, unsigned long long *crash_base); | |
| 72 | ||
| 73 | #endif /* LINUX_CRASH_CORE_H */ |