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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. */
6typedef unsigned int Elf32_Addr;
7typedef unsigned short Elf32_Half;
8typedef unsigned int Elf32_Off;
9typedef signed int Elf32_Sword;
10typedef unsigned int Elf32_Word;
11
12/* 64-bit ELF base types. */
13typedef unsigned long long Elf64_Addr;
14typedef unsigned short Elf64_Half;
15typedef signed short Elf64_SHalf;
16typedef unsigned long long Elf64_Off;
17typedef signed int Elf64_Sword;
18typedef unsigned int Elf64_Word;
19typedef unsigned long long Elf64_Xword;
20typedef 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
55typedef 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
72typedef 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
95typedef 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
106typedef 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
150struct elf_info {
151 unsigned long loadsize;
152 unsigned long memsize;
153 unsigned long elfoffset;
154};
155int parse_elf64(void *hdr, struct elf_info *info);
156int parse_elf32(void *hdr, struct elf_info *info);
157
158#endif /* _PPC_BOOT_ELF_H_ */
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. */
6typedef unsigned int Elf32_Addr;
7typedef unsigned short Elf32_Half;
8typedef unsigned int Elf32_Off;
9typedef signed int Elf32_Sword;
10typedef unsigned int Elf32_Word;
11
12/* 64-bit ELF base types. */
13typedef unsigned long long Elf64_Addr;
14typedef unsigned short Elf64_Half;
15typedef signed short Elf64_SHalf;
16typedef unsigned long long Elf64_Off;
17typedef signed int Elf64_Sword;
18typedef unsigned int Elf64_Word;
19typedef unsigned long long Elf64_Xword;
20typedef 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
55typedef 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
72typedef 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
95typedef 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
106typedef 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
150struct elf_info {
151 unsigned long loadsize;
152 unsigned long memsize;
153 unsigned long elfoffset;
154};
155int parse_elf64(void *hdr, struct elf_info *info);
156int parse_elf32(void *hdr, struct elf_info *info);
157
158#endif /* _PPC_BOOT_ELF_H_ */