1 /*
2  * Copyright (c) 2021-2023 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 #ifndef DFX_ELF_DEFINE_H
16 #define DFX_ELF_DEFINE_H
17 
18 #include <cinttypes>
19 #include <string>
20 #if !is_mingw
21 #include <elf.h>
22 #include <link.h>
23 #endif
24 
25 namespace OHOS {
26 namespace HiviewDFX {
27 static const std::string NOTE_GNU_BUILD_ID = ".note.gnu.build-id";
28 static const std::string NOTES = ".notes";
29 static const std::string GNU_DEBUGDATA = ".gnu_debugdata";
30 static const std::string EH_FRAME_HDR = ".eh_frame_hdr";
31 static const std::string EH_FRAME = ".eh_frame";
32 static const std::string ARM_EXIDX = ".ARM.exidx";
33 static const std::string ARM_EXTAB = ".ARM.extab";
34 static const std::string SHSTRTAB = ".shstrtab";
35 static const std::string STRTAB = ".strtab";
36 static const std::string SYMTAB = ".symtab";
37 static const std::string DYNSYM = ".dynsym";
38 static const std::string DYNSTR = ".dynstr";
39 static const std::string PLT = ".plt";
40 
41 struct ElfLoadInfo {
42     uint64_t offset = 0;
43     uint64_t tableVaddr = 0;
44     size_t tableSize = 0;
45     uint64_t align = 0;
46     uint64_t mmapLen = 0;
47 };
48 
49 struct ElfSymbol {
50     std::string nameStr = "";
51     uint32_t name = 0;
52     unsigned char info = 0;
53     unsigned char other = 0;
54     uint16_t shndx = 0;
55     uint64_t value = 0;
56     uint64_t size = 0;
57 };
58 
59 struct ElfShdr {
60     uint32_t	name = 0;       // Section name (string tbl index)
61     uint32_t	type = 0;       // Section type
62     uint64_t	flags = 0;      // Section flags
63     uint64_t	addr = 0;       // Section virtual addr at execution
64     uint64_t	offset = 0;     // Section file offset
65     uint64_t	size = 0;       // Section size in bytes
66     uint32_t	link = 0;       // Link to another section
67     uint32_t	info = 0;       // Additional section information
68     uint64_t	addrAlign = 0;  // Section alignment
69     uint64_t	entSize = 0;    // Entry size if section holds table
70 };
71 
72 struct ShdrInfo {
73     uint64_t addr = 0;
74     uint64_t entSize = 0;
75     uint64_t offset = 0;
76     uint64_t size = 0;
77 };
78 
79 struct __attribute__((packed)) DwarfEhFrameHdr {
80     unsigned char version = 0;
81     unsigned char ehFramePtrEnc = 0;
82     unsigned char fdeCountEnc = 0;
83     unsigned char tableEnc = 0;
84     ElfW(Addr) ehFrame;
85 };
86 
87 struct MiniDebugInfo {
88     uint64_t offset = 0;
89     uintptr_t size = 0;
90 };
91 
92 } // namespace HiviewDFX
93 } // namespace OHOS
94 #endif
95