1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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 | |
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 | |
158 | #endif /* _PPC_BOOT_ELF_H_ */ |
159 | |