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40 | 40 | ||
41 | #include <rtld.h> |
41 | #include <rtld.h> |
42 | #include <symbol.h> |
42 | #include <symbol.h> |
43 | #include <elf.h> |
43 | #include <elf.h> |
44 | 44 | ||
45 | elf_symbol_t *symbol_def_find(module_t *m, char *name) |
45 | static elf_symbol_t *def_find_in_module(char *name, module_t *m) |
46 | { |
46 | { |
47 | elf_symbol_t *sym_table; |
47 | elf_symbol_t *sym_table; |
48 | elf_symbol_t *sym; |
48 | elf_symbol_t *sym; |
49 | elf_word nchain; |
49 | elf_word nchain; |
50 | size_t i; |
50 | size_t i; |
51 | char *s_name; |
51 | char *s_name; |
- | 52 | char *module_name; |
|
52 | 53 | ||
- | 54 | module_name = m->dyn.soname; |
|
53 | printf("symbol_def_find(m, '%s')\n", name); |
55 | printf("def_find_in_module('%s', %s)\n", name, module_name); |
54 | 56 | ||
55 | sym_table = m->dyn.sym_tab; |
57 | sym_table = m->dyn.sym_tab; |
56 | nchain = m->dyn.hash[1]; |
58 | nchain = m->dyn.hash[1]; |
57 | 59 | ||
58 | for (i = 0; i < nchain; ++i) { |
60 | for (i = 0; i < nchain; ++i) { |
59 | sym = &sym_table[i]; |
61 | sym = &sym_table[i]; |
60 | s_name = m->dyn.str_tab + sym->st_name; |
62 | s_name = m->dyn.str_tab + sym->st_name; |
61 | printf("cmp sym '%s'\n", s_name); |
63 | printf("cmp sym '%s'\n", s_name); |
62 | if (strcmp(name, s_name) == 0) { |
64 | if (strcmp(name, s_name) == 0) { |
- | 65 | printf("name match\n"); |
|
- | 66 | if (sym->st_shndx != SHN_UNDEF) { |
|
63 | printf("found. idx=%d\n", i); |
67 | printf("definition found. idx=%d\n", i); |
64 | return sym; |
68 | return sym; |
- | 69 | } else { |
|
- | 70 | printf("not a definition\n"); |
|
- | 71 | } |
|
65 | } |
72 | } |
66 | } |
73 | } |
67 | 74 | ||
68 | printf("not found\n"); |
75 | printf("not found\n"); |
69 | return NULL; |
76 | return NULL; |
70 | } |
77 | } |
71 | 78 | ||
- | 79 | ||
- | 80 | elf_symbol_t *symbol_def_find(char *name, module_t **m) |
|
- | 81 | { |
|
- | 82 | elf_symbol_t *sym; |
|
- | 83 | ||
- | 84 | sym = def_find_in_module(name, runtime_env.program); |
|
- | 85 | if (sym != NULL) { *m = runtime_env.program; return sym; } |
|
- | 86 | ||
- | 87 | sym = def_find_in_module(name, runtime_env.libc); |
|
- | 88 | if (sym != NULL) { *m = runtime_env.libc; return sym; } |
|
- | 89 | ||
- | 90 | /* sym = def_find_in_module(name, runtime_env.rtld); |
|
- | 91 | if (sym != NULL) { *m = runtime_env.rtld; return sym; }*/ |
|
- | 92 | ||
- | 93 | printf("symbol found nowhere\n"); |
|
- | 94 | *m = NULL; |
|
- | 95 | return NULL; |
|
- | 96 | } |
|
- | 97 | ||
72 | /** @} |
98 | /** @} |
73 | */ |
99 | */ |