Commit | Line | Data |
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1da177e4 LT |
1 | #include <stdio.h> |
2 | #include <stdlib.h> | |
3 | #include <stdarg.h> | |
4 | #include <string.h> | |
5 | #include <sys/types.h> | |
6 | #include <sys/stat.h> | |
7 | #include <sys/mman.h> | |
8 | #include <fcntl.h> | |
9 | #include <unistd.h> | |
10 | #include <elf.h> | |
11 | ||
12 | #include "elfconfig.h" | |
13 | ||
14 | #if KERNEL_ELFCLASS == ELFCLASS32 | |
15 | ||
62070fa4 SR |
16 | #define Elf_Ehdr Elf32_Ehdr |
17 | #define Elf_Shdr Elf32_Shdr | |
1da177e4 | 18 | #define Elf_Sym Elf32_Sym |
b39927cf | 19 | #define Elf_Addr Elf32_Addr |
9ad21c3f | 20 | #define Elf_Sword Elf64_Sword |
4f4c4ee1 | 21 | #define Elf_Section Elf32_Half |
1da177e4 LT |
22 | #define ELF_ST_BIND ELF32_ST_BIND |
23 | #define ELF_ST_TYPE ELF32_ST_TYPE | |
24 | ||
2c1a51f3 | 25 | #define Elf_Rel Elf32_Rel |
b39927cf SR |
26 | #define Elf_Rela Elf32_Rela |
27 | #define ELF_R_SYM ELF32_R_SYM | |
28 | #define ELF_R_TYPE ELF32_R_TYPE | |
1da177e4 LT |
29 | #else |
30 | ||
62070fa4 SR |
31 | #define Elf_Ehdr Elf64_Ehdr |
32 | #define Elf_Shdr Elf64_Shdr | |
1da177e4 | 33 | #define Elf_Sym Elf64_Sym |
b39927cf | 34 | #define Elf_Addr Elf64_Addr |
9ad21c3f | 35 | #define Elf_Sword Elf64_Sxword |
4f4c4ee1 | 36 | #define Elf_Section Elf64_Half |
1da177e4 LT |
37 | #define ELF_ST_BIND ELF64_ST_BIND |
38 | #define ELF_ST_TYPE ELF64_ST_TYPE | |
39 | ||
2c1a51f3 | 40 | #define Elf_Rel Elf64_Rel |
b39927cf SR |
41 | #define Elf_Rela Elf64_Rela |
42 | #define ELF_R_SYM ELF64_R_SYM | |
43 | #define ELF_R_TYPE ELF64_R_TYPE | |
1da177e4 LT |
44 | #endif |
45 | ||
eae07ac6 AN |
46 | /* The 64-bit MIPS ELF ABI uses an unusual reloc format. */ |
47 | typedef struct | |
48 | { | |
49 | Elf32_Word r_sym; /* Symbol index */ | |
50 | unsigned char r_ssym; /* Special symbol for 2nd relocation */ | |
51 | unsigned char r_type3; /* 3rd relocation type */ | |
52 | unsigned char r_type2; /* 2nd relocation type */ | |
53 | unsigned char r_type1; /* 1st relocation type */ | |
54 | } _Elf64_Mips_R_Info; | |
55 | ||
56 | typedef union | |
57 | { | |
58 | Elf64_Xword r_info_number; | |
59 | _Elf64_Mips_R_Info r_info_fields; | |
60 | } _Elf64_Mips_R_Info_union; | |
61 | ||
62 | #define ELF64_MIPS_R_SYM(i) \ | |
63 | ((__extension__ (_Elf64_Mips_R_Info_union)(i)).r_info_fields.r_sym) | |
64 | ||
ae4ac123 AN |
65 | #define ELF64_MIPS_R_TYPE(i) \ |
66 | ((__extension__ (_Elf64_Mips_R_Info_union)(i)).r_info_fields.r_type1) | |
67 | ||
1da177e4 LT |
68 | #if KERNEL_ELFDATA != HOST_ELFDATA |
69 | ||
70 | static inline void __endian(const void *src, void *dest, unsigned int size) | |
71 | { | |
72 | unsigned int i; | |
73 | for (i = 0; i < size; i++) | |
74 | ((unsigned char*)dest)[i] = ((unsigned char*)src)[size - i-1]; | |
75 | } | |
76 | ||
1da177e4 LT |
77 | #define TO_NATIVE(x) \ |
78 | ({ \ | |
79 | typeof(x) __x; \ | |
80 | __endian(&(x), &(__x), sizeof(__x)); \ | |
81 | __x; \ | |
82 | }) | |
83 | ||
84 | #else /* endianness matches */ | |
85 | ||
86 | #define TO_NATIVE(x) (x) | |
87 | ||
88 | #endif | |
89 | ||
90 | #define NOFAIL(ptr) do_nofail((ptr), #ptr) | |
91 | void *do_nofail(void *ptr, const char *expr); | |
92 | ||
93 | struct buffer { | |
94 | char *p; | |
95 | int pos; | |
96 | int size; | |
97 | }; | |
98 | ||
99 | void __attribute__((format(printf, 2, 3))) | |
100 | buf_printf(struct buffer *buf, const char *fmt, ...); | |
101 | ||
102 | void | |
103 | buf_write(struct buffer *buf, const char *s, int len); | |
104 | ||
105 | struct module { | |
106 | struct module *next; | |
107 | const char *name; | |
b817f6fe | 108 | int gpl_compatible; |
1da177e4 LT |
109 | struct symbol *unres; |
110 | int seen; | |
111 | int skip; | |
112 | int has_init; | |
113 | int has_cleanup; | |
114 | struct buffer dev_table_buf; | |
b2e3e658 MD |
115 | char **markers; |
116 | size_t nmarkers; | |
1da177e4 LT |
117 | char srcversion[25]; |
118 | }; | |
119 | ||
120 | struct elf_info { | |
121 | unsigned long size; | |
122 | Elf_Ehdr *hdr; | |
123 | Elf_Shdr *sechdrs; | |
124 | Elf_Sym *symtab_start; | |
125 | Elf_Sym *symtab_stop; | |
bd5cbced | 126 | Elf_Section export_sec; |
c96fca21 | 127 | Elf_Section export_unused_sec; |
bd5cbced | 128 | Elf_Section export_gpl_sec; |
c96fca21 | 129 | Elf_Section export_unused_gpl_sec; |
bd5cbced | 130 | Elf_Section export_gpl_future_sec; |
b2e3e658 | 131 | Elf_Section markers_strings_sec; |
1da177e4 LT |
132 | const char *strtab; |
133 | char *modinfo; | |
134 | unsigned int modinfo_len; | |
135 | }; | |
136 | ||
cb80514d | 137 | /* file2alias.c */ |
4ce6efed | 138 | extern unsigned int cross_build; |
1da177e4 LT |
139 | void handle_moddevtable(struct module *mod, struct elf_info *info, |
140 | Elf_Sym *sym, const char *symname); | |
1da177e4 LT |
141 | void add_moddevtable(struct buffer *buf, struct module *mod); |
142 | ||
cb80514d | 143 | /* sumversion.c */ |
1da177e4 LT |
144 | void maybe_frob_rcs_version(const char *modfilename, |
145 | char *version, | |
146 | void *modinfo, | |
147 | unsigned long modinfo_offset); | |
148 | void get_src_version(const char *modname, char sum[], unsigned sumlen); | |
149 | ||
cb80514d | 150 | /* from modpost.c */ |
1da177e4 LT |
151 | void *grab_file(const char *filename, unsigned long *size); |
152 | char* get_next_line(unsigned long *pos, void *file, unsigned long size); | |
153 | void release_file(void *file, unsigned long size); | |
cb80514d SR |
154 | |
155 | void fatal(const char *fmt, ...); | |
156 | void warn(const char *fmt, ...); | |
2a116659 | 157 | void merror(const char *fmt, ...); |