forked from iovisor/bcc
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathbcc_elf.h
More file actions
75 lines (66 loc) · 2.73 KB
/
Copy pathbcc_elf.h
File metadata and controls
75 lines (66 loc) · 2.73 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
/*
* Copyright (c) 2016 GitHub, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef LIBBCC_ELF_H
#define LIBBCC_ELF_H
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
struct bcc_elf_usdt {
uint64_t pc;
uint64_t base_addr;
uint64_t semaphore;
const char *provider;
const char *name;
const char *arg_fmt;
};
// Binary module path, bcc_elf_usdt struct, payload
typedef void (*bcc_elf_probecb)(const char *, const struct bcc_elf_usdt *,
void *);
// Symbol name, start address, length, payload
// Callback returning a negative value indicates to stop the iteration
typedef int (*bcc_elf_symcb)(const char *, uint64_t, uint64_t, void *);
// Segment virtual address, memory size, file offset, payload
// Callback returning a negative value indicates to stop the iteration
typedef int (*bcc_elf_load_sectioncb)(uint64_t, uint64_t, uint64_t, void *);
// Iterate over all USDT probes noted in a binary module
// Returns -1 on error, and 0 on success
int bcc_elf_foreach_usdt(const char *path, bcc_elf_probecb callback,
void *payload);
// Iterate over all executable load sections of an ELF
// Returns -1 on error, 1 if stopped by callback, and 0 on success
int bcc_elf_foreach_load_section(const char *path,
bcc_elf_load_sectioncb callback,
void *payload);
// Iterate over symbol table of a binary module
// Parameter "option" points to a bcc_symbol_option struct to indicate wheather
// and how to use debuginfo file, and what types of symbols to load.
// Returns -1 on error, and 0 on success or stopped by callback
int bcc_elf_foreach_sym(const char *path, bcc_elf_symcb callback, void *option,
void *payload);
// Iterate over all symbols from current system's vDSO
// Returns -1 on error, and 0 on success or stopped by callback
int bcc_elf_foreach_vdso_sym(bcc_elf_symcb callback, void *payload);
int bcc_elf_get_text_scn_info(const char *path, uint64_t *addr,
uint64_t *offset);
int bcc_elf_get_type(const char *path);
int bcc_elf_is_shared_obj(const char *path);
int bcc_elf_is_exe(const char *path);
int bcc_elf_is_vdso(const char *name);
#ifdef __cplusplus
}
#endif
#endif