Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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
16#define Elf_Ehdr Elf32_Ehdr
17#define Elf_Shdr Elf32_Shdr
18#define Elf_Sym Elf32_Sym
19#define Elf_Addr Elf32_Addr
20#define Elf_Section Elf32_Section
21#define ELF_ST_BIND ELF32_ST_BIND
22#define ELF_ST_TYPE ELF32_ST_TYPE
23
24#define Elf_Rela Elf32_Rela
25#define ELF_R_SYM ELF32_R_SYM
26#define ELF_R_TYPE ELF32_R_TYPE
27#else
28
29#define Elf_Ehdr Elf64_Ehdr
30#define Elf_Shdr Elf64_Shdr
31#define Elf_Sym Elf64_Sym
32#define Elf_Addr Elf64_Addr
33#define Elf_Section Elf64_Section
34#define ELF_ST_BIND ELF64_ST_BIND
35#define ELF_ST_TYPE ELF64_ST_TYPE
36
37#define Elf_Rela Elf64_Rela
38#define ELF_R_SYM ELF64_R_SYM
39#define ELF_R_TYPE ELF64_R_TYPE
40#endif
41
42#if KERNEL_ELFDATA != HOST_ELFDATA
43
44static inline void __endian(const void *src, void *dest, unsigned int size)
45{
46 unsigned int i;
47 for (i = 0; i < size; i++)
48 ((unsigned char*)dest)[i] = ((unsigned char*)src)[size - i-1];
49}
50
51
52
53#define TO_NATIVE(x) \
54({ \
55 typeof(x) __x; \
56 __endian(&(x), &(__x), sizeof(__x)); \
57 __x; \
58})
59
60#else /* endianness matches */
61
62#define TO_NATIVE(x) (x)
63
64#endif
65
66#define NOFAIL(ptr) do_nofail((ptr), #ptr)
67void *do_nofail(void *ptr, const char *expr);
68
69struct buffer {
70 char *p;
71 int pos;
72 int size;
73};
74
75void __attribute__((format(printf, 2, 3)))
76buf_printf(struct buffer *buf, const char *fmt, ...);
77
78void
79buf_write(struct buffer *buf, const char *s, int len);
80
81struct module {
82 struct module *next;
83 const char *name;
84 struct symbol *unres;
85 int seen;
86 int skip;
87 int has_init;
88 int has_cleanup;
89 struct buffer dev_table_buf;
90 char srcversion[25];
91};
92
93struct elf_info {
94 unsigned long size;
95 Elf_Ehdr *hdr;
96 Elf_Shdr *sechdrs;
97 Elf_Sym *symtab_start;
98 Elf_Sym *symtab_stop;
99 const char *strtab;
100 char *modinfo;
101 unsigned int modinfo_len;
102};
103
104/* file2alias.c */
105void handle_moddevtable(struct module *mod, struct elf_info *info,
106 Elf_Sym *sym, const char *symname);
107void add_moddevtable(struct buffer *buf, struct module *mod);
108
109/* sumversion.c */
110void maybe_frob_rcs_version(const char *modfilename,
111 char *version,
112 void *modinfo,
113 unsigned long modinfo_offset);
114void get_src_version(const char *modname, char sum[], unsigned sumlen);
115
116/* from modpost.c */
117void *grab_file(const char *filename, unsigned long *size);
118char* get_next_line(unsigned long *pos, void *file, unsigned long size);
119void release_file(void *file, unsigned long size);
120
121void fatal(const char *fmt, ...);
122void warn(const char *fmt, ...);