2 * jitdump.h: jitted code info encapsulation file format
4 * Adapted from OProfile GPLv2 support jidump.h:
5 * Copyright 2007 OProfile authors
8 * Copyright IBM Corporation 2007
18 #define JITHEADER_MAGIC 0x4A695444
19 #define JITHEADER_MAGIC_SW 0x4454694A
21 #define PADDING_8ALIGNED(x) ((((x) + 7) & 7) ^ 7)
23 #define JITHEADER_VERSION 1
25 enum jitdump_flags_bits {
26 JITDUMP_FLAGS_MAX_BIT,
29 #define JITDUMP_FLAGS_RESERVED (JITDUMP_FLAGS_MAX_BIT < 64 ? \
30 (~((1ULL << JITDUMP_FLAGS_MAX_BIT) - 1)) : 0)
33 uint32_t magic; /* characters "jItD" */
34 uint32_t version; /* header version */
35 uint32_t total_size; /* total size of header */
36 uint32_t elf_mach; /* elf mach target */
37 uint32_t pad1; /* reserved */
38 uint32_t pid; /* JIT process id */
39 uint64_t timestamp; /* timestamp */
40 uint64_t flags; /* flags */
43 enum jit_record_type {
46 JIT_CODE_DEBUG_INFO = 2,
52 /* record prefix (mandatory in each record) */
70 struct jr_code_close {
80 uint64_t old_code_addr;
81 uint64_t new_code_addr;
88 int lineno; /* source line number starting at 1 */
89 int discrim; /* column discriminator, 0 is default */
90 const char name[0]; /* null terminated filename, \xff\0 if same as previous entry */
93 struct jr_code_debug_info {
98 struct debug_entry entries[0];
102 struct jr_code_debug_info info;
103 struct jr_code_close close;
104 struct jr_code_load load;
105 struct jr_code_move move;
106 struct jr_prefix prefix;
109 static inline struct debug_entry *
110 debug_entry_next(struct debug_entry *ent)
113 size_t l = strlen(ent->name) + 1;
118 debug_entry_file(struct debug_entry *ent)
124 #endif /* !JITDUMP_H */