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 SR |
19 | #define Elf_Addr Elf32_Addr |
20 | #define Elf_Section Elf32_Section | |
1da177e4 LT |
21 | #define ELF_ST_BIND ELF32_ST_BIND |
22 | #define ELF_ST_TYPE ELF32_ST_TYPE | |
23 | ||
2c1a51f3 | 24 | #define Elf_Rel Elf32_Rel |
b39927cf SR |
25 | #define Elf_Rela Elf32_Rela |
26 | #define ELF_R_SYM ELF32_R_SYM | |
27 | #define ELF_R_TYPE ELF32_R_TYPE | |
1da177e4 LT |
28 | #else |
29 | ||
62070fa4 SR |
30 | #define Elf_Ehdr Elf64_Ehdr |
31 | #define Elf_Shdr Elf64_Shdr | |
1da177e4 | 32 | #define Elf_Sym Elf64_Sym |
b39927cf SR |
33 | #define Elf_Addr Elf64_Addr |
34 | #define Elf_Section Elf64_Section | |
1da177e4 LT |
35 | #define ELF_ST_BIND ELF64_ST_BIND |
36 | #define ELF_ST_TYPE ELF64_ST_TYPE | |
37 | ||
2c1a51f3 | 38 | #define Elf_Rel Elf64_Rel |
b39927cf SR |
39 | #define Elf_Rela Elf64_Rela |
40 | #define ELF_R_SYM ELF64_R_SYM | |
41 | #define ELF_R_TYPE ELF64_R_TYPE | |
1da177e4 LT |
42 | #endif |
43 | ||
eae07ac6 AN |
44 | /* The 64-bit MIPS ELF ABI uses an unusual reloc format. */ |
45 | typedef struct | |
46 | { | |
47 | Elf32_Word r_sym; /* Symbol index */ | |
48 | unsigned char r_ssym; /* Special symbol for 2nd relocation */ | |
49 | unsigned char r_type3; /* 3rd relocation type */ | |
50 | unsigned char r_type2; /* 2nd relocation type */ | |
51 | unsigned char r_type1; /* 1st relocation type */ | |
52 | } _Elf64_Mips_R_Info; | |
53 | ||
54 | typedef union | |
55 | { | |
56 | Elf64_Xword r_info_number; | |
57 | _Elf64_Mips_R_Info r_info_fields; | |
58 | } _Elf64_Mips_R_Info_union; | |
59 | ||
60 | #define ELF64_MIPS_R_SYM(i) \ | |
61 | ((__extension__ (_Elf64_Mips_R_Info_union)(i)).r_info_fields.r_sym) | |
62 | ||
ae4ac123 AN |
63 | #define ELF64_MIPS_R_TYPE(i) \ |
64 | ((__extension__ (_Elf64_Mips_R_Info_union)(i)).r_info_fields.r_type1) | |
65 | ||
1da177e4 LT |
66 | #if KERNEL_ELFDATA != HOST_ELFDATA |
67 | ||
68 | static inline void __endian(const void *src, void *dest, unsigned int size) | |
69 | { | |
70 | unsigned int i; | |
71 | for (i = 0; i < size; i++) | |
72 | ((unsigned char*)dest)[i] = ((unsigned char*)src)[size - i-1]; | |
73 | } | |
74 | ||
1da177e4 LT |
75 | #define TO_NATIVE(x) \ |
76 | ({ \ | |
77 | typeof(x) __x; \ | |
78 | __endian(&(x), &(__x), sizeof(__x)); \ | |
79 | __x; \ | |
80 | }) | |
81 | ||
82 | #else /* endianness matches */ | |
83 | ||
84 | #define TO_NATIVE(x) (x) | |
85 | ||
86 | #endif | |
87 | ||
88 | #define NOFAIL(ptr) do_nofail((ptr), #ptr) | |
89 | void *do_nofail(void *ptr, const char *expr); | |
90 | ||
91 | struct buffer { | |
92 | char *p; | |
93 | int pos; | |
94 | int size; | |
95 | }; | |
96 | ||
97 | void __attribute__((format(printf, 2, 3))) | |
98 | buf_printf(struct buffer *buf, const char *fmt, ...); | |
99 | ||
100 | void | |
101 | buf_write(struct buffer *buf, const char *s, int len); | |
102 | ||
103 | struct module { | |
104 | struct module *next; | |
105 | const char *name; | |
b817f6fe | 106 | int gpl_compatible; |
1da177e4 LT |
107 | struct symbol *unres; |
108 | int seen; | |
109 | int skip; | |
110 | int has_init; | |
111 | int has_cleanup; | |
112 | struct buffer dev_table_buf; | |
113 | char srcversion[25]; | |
114 | }; | |
115 | ||
116 | struct elf_info { | |
117 | unsigned long size; | |
118 | Elf_Ehdr *hdr; | |
119 | Elf_Shdr *sechdrs; | |
120 | Elf_Sym *symtab_start; | |
121 | Elf_Sym *symtab_stop; | |
bd5cbced | 122 | Elf_Section export_sec; |
c96fca21 | 123 | Elf_Section export_unused_sec; |
bd5cbced | 124 | Elf_Section export_gpl_sec; |
c96fca21 | 125 | Elf_Section export_unused_gpl_sec; |
bd5cbced | 126 | Elf_Section export_gpl_future_sec; |
1da177e4 LT |
127 | const char *strtab; |
128 | char *modinfo; | |
129 | unsigned int modinfo_len; | |
130 | }; | |
131 | ||
cb80514d | 132 | /* file2alias.c */ |
1da177e4 LT |
133 | void handle_moddevtable(struct module *mod, struct elf_info *info, |
134 | Elf_Sym *sym, const char *symname); | |
1da177e4 LT |
135 | void add_moddevtable(struct buffer *buf, struct module *mod); |
136 | ||
cb80514d | 137 | /* sumversion.c */ |
1da177e4 LT |
138 | void maybe_frob_rcs_version(const char *modfilename, |
139 | char *version, | |
140 | void *modinfo, | |
141 | unsigned long modinfo_offset); | |
142 | void get_src_version(const char *modname, char sum[], unsigned sumlen); | |
143 | ||
cb80514d | 144 | /* from modpost.c */ |
1da177e4 LT |
145 | void *grab_file(const char *filename, unsigned long *size); |
146 | char* get_next_line(unsigned long *pos, void *file, unsigned long size); | |
147 | void release_file(void *file, unsigned long size); | |
cb80514d SR |
148 | |
149 | void fatal(const char *fmt, ...); | |
150 | void warn(const char *fmt, ...); | |
2a116659 | 151 | void merror(const char *fmt, ...); |