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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 | ||
13 | #define CRASH_CORE_NOTE_BYTES ((CRASH_CORE_NOTE_HEAD_BYTES * 2) + \ | |
14 | CRASH_CORE_NOTE_NAME_BYTES + \ | |
15 | CRASH_CORE_NOTE_DESC_BYTES) | |
16 | ||
17 | #define VMCOREINFO_BYTES (4096) | |
18 | #define VMCOREINFO_NOTE_NAME "VMCOREINFO" | |
19 | #define VMCOREINFO_NOTE_NAME_BYTES ALIGN(sizeof(VMCOREINFO_NOTE_NAME), 4) | |
20 | #define VMCOREINFO_NOTE_SIZE ((CRASH_CORE_NOTE_HEAD_BYTES * 2) + \ | |
21 | VMCOREINFO_NOTE_NAME_BYTES + \ | |
22 | VMCOREINFO_BYTES) | |
23 | ||
24 | typedef u32 note_buf_t[CRASH_CORE_NOTE_BYTES/4]; | |
25 | ||
26 | void crash_save_vmcoreinfo(void); | |
27 | void arch_crash_save_vmcoreinfo(void); | |
28 | __printf(1, 2) | |
29 | void vmcoreinfo_append_str(const char *fmt, ...); | |
30 | phys_addr_t paddr_vmcoreinfo_note(void); | |
31 | ||
32 | #define VMCOREINFO_OSRELEASE(value) \ | |
33 | vmcoreinfo_append_str("OSRELEASE=%s\n", value) | |
34 | #define VMCOREINFO_PAGESIZE(value) \ | |
35 | vmcoreinfo_append_str("PAGESIZE=%ld\n", value) | |
36 | #define VMCOREINFO_SYMBOL(name) \ | |
37 | vmcoreinfo_append_str("SYMBOL(%s)=%lx\n", #name, (unsigned long)&name) | |
38 | #define VMCOREINFO_SIZE(name) \ | |
39 | vmcoreinfo_append_str("SIZE(%s)=%lu\n", #name, \ | |
40 | (unsigned long)sizeof(name)) | |
41 | #define VMCOREINFO_STRUCT_SIZE(name) \ | |
42 | vmcoreinfo_append_str("SIZE(%s)=%lu\n", #name, \ | |
43 | (unsigned long)sizeof(struct name)) | |
44 | #define VMCOREINFO_OFFSET(name, field) \ | |
45 | vmcoreinfo_append_str("OFFSET(%s.%s)=%lu\n", #name, #field, \ | |
46 | (unsigned long)offsetof(struct name, field)) | |
47 | #define VMCOREINFO_LENGTH(name, value) \ | |
48 | vmcoreinfo_append_str("LENGTH(%s)=%lu\n", #name, (unsigned long)value) | |
49 | #define VMCOREINFO_NUMBER(name) \ | |
50 | vmcoreinfo_append_str("NUMBER(%s)=%ld\n", #name, (long)name) | |
51 | #define VMCOREINFO_CONFIG(name) \ | |
52 | vmcoreinfo_append_str("CONFIG_%s=y\n", #name) | |
53 | ||
54 | extern u32 vmcoreinfo_note[VMCOREINFO_NOTE_SIZE/4]; | |
55 | extern size_t vmcoreinfo_size; | |
56 | extern size_t vmcoreinfo_max_size; | |
57 | ||
58 | int __init parse_crashkernel(char *cmdline, unsigned long long system_ram, | |
59 | unsigned long long *crash_size, unsigned long long *crash_base); | |
60 | int parse_crashkernel_high(char *cmdline, unsigned long long system_ram, | |
61 | unsigned long long *crash_size, unsigned long long *crash_base); | |
62 | int parse_crashkernel_low(char *cmdline, unsigned long long system_ram, | |
63 | unsigned long long *crash_size, unsigned long long *crash_base); | |
64 | ||
65 | #endif /* LINUX_CRASH_CORE_H */ |