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Line 42... | Line 42... | ||
42 | #include <rtld.h> |
42 | #include <rtld.h> |
43 | 43 | ||
44 | /** |
44 | /** |
45 | * Process (fixup) all relocations in a relocation table. |
45 | * Process (fixup) all relocations in a relocation table. |
46 | */ |
46 | */ |
47 | void rel_table_process(module_t *m, elf_rel_t *rt, size_t rt_size, |
47 | void rel_table_process(module_t *m, elf_rel_t *rt, size_t rt_size) |
48 | module_t *dest) |
- | |
49 | { |
48 | { |
50 | int i; |
49 | int i; |
51 | 50 | ||
52 | size_t rt_entries; |
51 | size_t rt_entries; |
53 | size_t r_offset; |
52 | size_t r_offset; |
Line 60... | Line 59... | ||
60 | elf_symbol_t *sym; |
59 | elf_symbol_t *sym; |
61 | uint32_t *r_ptr; |
60 | uint32_t *r_ptr; |
62 | char *str_tab; |
61 | char *str_tab; |
63 | 62 | ||
64 | elf_symbol_t *sym_def; |
63 | elf_symbol_t *sym_def; |
- | 64 | module_t *dest; |
|
65 | 65 | ||
66 | printf("parse relocation table\n"); |
66 | printf("parse relocation table\n"); |
67 | 67 | ||
68 | sym_table = m->dyn.sym_tab; |
68 | sym_table = m->dyn.sym_tab; |
69 | rt_entries = rt_size / sizeof(elf_rel_t); |
69 | rt_entries = rt_size / sizeof(elf_rel_t); |
Line 86... | Line 86... | ||
86 | 86 | ||
87 | rel_type = ELF32_R_TYPE(r_info); |
87 | rel_type = ELF32_R_TYPE(r_info); |
88 | r_ptr = (uint32_t *)(r_offset + m->bias); |
88 | r_ptr = (uint32_t *)(r_offset + m->bias); |
89 | 89 | ||
90 | printf("rel_type: %x, rel_offset: 0x%x\n", rel_type, r_offset); |
90 | printf("rel_type: %x, rel_offset: 0x%x\n", rel_type, r_offset); |
91 | sym_def = symbol_def_find(dest, str_tab + sym->st_name); |
91 | sym_def = symbol_def_find(str_tab + sym->st_name, &dest); |
- | 92 | printf("dest name: '%s'\n", dest->dyn.soname); |
|
- | 93 | printf("dest bias: 0x%x\n", dest->bias); |
|
92 | if (sym_def) { |
94 | if (sym_def) { |
93 | sym_addr = sym_def->st_value + dest->bias; |
95 | sym_addr = sym_def->st_value + dest->bias; |
94 | printf("symbol definition found, addr=0x%x\n", sym_addr); |
96 | printf("symbol definition found, addr=0x%x\n", sym_addr); |
95 | } else { |
97 | } else { |
96 | printf("symbol definition not found\n"); |
98 | printf("symbol definition not found\n"); |
Line 109... | Line 111... | ||
109 | *r_ptr += sym_addr; |
111 | *r_ptr += sym_addr; |
110 | break; |
112 | break; |
111 | 113 | ||
112 | case R_386_RELATIVE: |
114 | case R_386_RELATIVE: |
113 | printf("fixup R_386_RELATIVE (b+a)\n"); |
115 | printf("fixup R_386_RELATIVE (b+a)\n"); |
114 | *r_ptr += dest->bias; |
116 | *r_ptr += m->bias; |
115 | break; |
117 | break; |
116 | } |
118 | } |
117 | } |
119 | } |
118 | 120 | ||
119 | } |
121 | } |