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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
decd300b OH |
2 | #ifndef _PPC_BOOT_ELF_H_ |
3 | #define _PPC_BOOT_ELF_H_ | |
4 | ||
5 | /* 32-bit ELF base types. */ | |
6 | typedef unsigned int Elf32_Addr; | |
7 | typedef unsigned short Elf32_Half; | |
8 | typedef unsigned int Elf32_Off; | |
9 | typedef signed int Elf32_Sword; | |
10 | typedef unsigned int Elf32_Word; | |
11 | ||
12 | /* 64-bit ELF base types. */ | |
13 | typedef unsigned long long Elf64_Addr; | |
14 | typedef unsigned short Elf64_Half; | |
15 | typedef signed short Elf64_SHalf; | |
16 | typedef unsigned long long Elf64_Off; | |
17 | typedef signed int Elf64_Sword; | |
18 | typedef unsigned int Elf64_Word; | |
19 | typedef unsigned long long Elf64_Xword; | |
20 | typedef signed long long Elf64_Sxword; | |
21 | ||
22 | /* These constants are for the segment types stored in the image headers */ | |
23 | #define PT_NULL 0 | |
24 | #define PT_LOAD 1 | |
25 | #define PT_DYNAMIC 2 | |
26 | #define PT_INTERP 3 | |
27 | #define PT_NOTE 4 | |
28 | #define PT_SHLIB 5 | |
29 | #define PT_PHDR 6 | |
30 | #define PT_TLS 7 /* Thread local storage segment */ | |
31 | #define PT_LOOS 0x60000000 /* OS-specific */ | |
32 | #define PT_HIOS 0x6fffffff /* OS-specific */ | |
33 | #define PT_LOPROC 0x70000000 | |
34 | #define PT_HIPROC 0x7fffffff | |
35 | #define PT_GNU_EH_FRAME 0x6474e550 | |
36 | ||
37 | #define PT_GNU_STACK (PT_LOOS + 0x474e551) | |
38 | ||
39 | /* These constants define the different elf file types */ | |
40 | #define ET_NONE 0 | |
41 | #define ET_REL 1 | |
42 | #define ET_EXEC 2 | |
43 | #define ET_DYN 3 | |
44 | #define ET_CORE 4 | |
45 | #define ET_LOPROC 0xff00 | |
46 | #define ET_HIPROC 0xffff | |
47 | ||
48 | /* These constants define the various ELF target machines */ | |
49 | #define EM_NONE 0 | |
50 | #define EM_PPC 20 /* PowerPC */ | |
51 | #define EM_PPC64 21 /* PowerPC64 */ | |
52 | ||
53 | #define EI_NIDENT 16 | |
54 | ||
55 | typedef struct elf32_hdr { | |
56 | unsigned char e_ident[EI_NIDENT]; | |
57 | Elf32_Half e_type; | |
58 | Elf32_Half e_machine; | |
59 | Elf32_Word e_version; | |
60 | Elf32_Addr e_entry; /* Entry point */ | |
61 | Elf32_Off e_phoff; | |
62 | Elf32_Off e_shoff; | |
63 | Elf32_Word e_flags; | |
64 | Elf32_Half e_ehsize; | |
65 | Elf32_Half e_phentsize; | |
66 | Elf32_Half e_phnum; | |
67 | Elf32_Half e_shentsize; | |
68 | Elf32_Half e_shnum; | |
69 | Elf32_Half e_shstrndx; | |
70 | } Elf32_Ehdr; | |
71 | ||
72 | typedef struct elf64_hdr { | |
73 | unsigned char e_ident[16]; /* ELF "magic number" */ | |
74 | Elf64_Half e_type; | |
75 | Elf64_Half e_machine; | |
76 | Elf64_Word e_version; | |
77 | Elf64_Addr e_entry; /* Entry point virtual address */ | |
78 | Elf64_Off e_phoff; /* Program header table file offset */ | |
79 | Elf64_Off e_shoff; /* Section header table file offset */ | |
80 | Elf64_Word e_flags; | |
81 | Elf64_Half e_ehsize; | |
82 | Elf64_Half e_phentsize; | |
83 | Elf64_Half e_phnum; | |
84 | Elf64_Half e_shentsize; | |
85 | Elf64_Half e_shnum; | |
86 | Elf64_Half e_shstrndx; | |
87 | } Elf64_Ehdr; | |
88 | ||
89 | /* These constants define the permissions on sections in the program | |
90 | header, p_flags. */ | |
91 | #define PF_R 0x4 | |
92 | #define PF_W 0x2 | |
93 | #define PF_X 0x1 | |
94 | ||
95 | typedef struct elf32_phdr { | |
96 | Elf32_Word p_type; | |
97 | Elf32_Off p_offset; | |
98 | Elf32_Addr p_vaddr; | |
99 | Elf32_Addr p_paddr; | |
100 | Elf32_Word p_filesz; | |
101 | Elf32_Word p_memsz; | |
102 | Elf32_Word p_flags; | |
103 | Elf32_Word p_align; | |
104 | } Elf32_Phdr; | |
105 | ||
106 | typedef struct elf64_phdr { | |
107 | Elf64_Word p_type; | |
108 | Elf64_Word p_flags; | |
109 | Elf64_Off p_offset; /* Segment file offset */ | |
110 | Elf64_Addr p_vaddr; /* Segment virtual address */ | |
111 | Elf64_Addr p_paddr; /* Segment physical address */ | |
112 | Elf64_Xword p_filesz; /* Segment size in file */ | |
113 | Elf64_Xword p_memsz; /* Segment size in memory */ | |
114 | Elf64_Xword p_align; /* Segment alignment, file & memory */ | |
115 | } Elf64_Phdr; | |
116 | ||
117 | #define EI_MAG0 0 /* e_ident[] indexes */ | |
118 | #define EI_MAG1 1 | |
119 | #define EI_MAG2 2 | |
120 | #define EI_MAG3 3 | |
121 | #define EI_CLASS 4 | |
122 | #define EI_DATA 5 | |
123 | #define EI_VERSION 6 | |
124 | #define EI_OSABI 7 | |
125 | #define EI_PAD 8 | |
126 | ||
127 | #define ELFMAG0 0x7f /* EI_MAG */ | |
128 | #define ELFMAG1 'E' | |
129 | #define ELFMAG2 'L' | |
130 | #define ELFMAG3 'F' | |
131 | #define ELFMAG "\177ELF" | |
132 | #define SELFMAG 4 | |
133 | ||
134 | #define ELFCLASSNONE 0 /* EI_CLASS */ | |
135 | #define ELFCLASS32 1 | |
136 | #define ELFCLASS64 2 | |
137 | #define ELFCLASSNUM 3 | |
138 | ||
139 | #define ELFDATANONE 0 /* e_ident[EI_DATA] */ | |
140 | #define ELFDATA2LSB 1 | |
141 | #define ELFDATA2MSB 2 | |
142 | ||
143 | #define EV_NONE 0 /* e_version, EI_VERSION */ | |
144 | #define EV_CURRENT 1 | |
145 | #define EV_NUM 2 | |
146 | ||
147 | #define ELFOSABI_NONE 0 | |
148 | #define ELFOSABI_LINUX 3 | |
149 | ||
88e68731 MG |
150 | struct elf_info { |
151 | unsigned long loadsize; | |
152 | unsigned long memsize; | |
153 | unsigned long elfoffset; | |
154 | }; | |
155 | int parse_elf64(void *hdr, struct elf_info *info); | |
156 | int parse_elf32(void *hdr, struct elf_info *info); | |
157 | ||
decd300b | 158 | #endif /* _PPC_BOOT_ELF_H_ */ |