diff options
Diffstat (limited to 'tccelf.c')
| -rw-r--r-- | tccelf.c | 44 |
1 files changed, 44 insertions, 0 deletions
@@ -1365,6 +1365,48 @@ void patch_dynsym_undef(TCCState *s1, Section *s) #define EXTRA_RELITEMS 9 #endif +ST_FUNC void fill_got_entry(TCCState *s1, ElfW_Rel *rel) +{ + int sym_index = ELFW(R_SYM) (rel->r_info); + ElfW(Sym) *sym = &((ElfW(Sym) *) symtab_section->data)[sym_index]; + unsigned long offset; + + if (sym_index >= s1->nb_got_offsets) + return; + offset = s1->got_offsets[sym_index]; + section_reserve(s1->got, offset + PTR_SIZE); + /* only works for x86-64 */ + put32(s1->got->data + offset, sym->st_value >> 32); + put32(s1->got->data + offset, sym->st_value & 0xffffffff); +} + +ST_FUNC void fill_got(TCCState *s1) +{ + Section *s; + ElfW_Rel *rel, *rel_end; + int i; + + for(i = 1; i < s1->nb_sections; i++) { + s = s1->sections[i]; + if (s->sh_type != SHT_RELX) + continue; + /* no need to handle got relocations */ + if (s->link != symtab_section) + continue; + rel_end = (ElfW_Rel *) (s->data + s->data_offset); + for(rel = (ElfW_Rel *) s->data; rel < rel_end; rel++) { + switch (ELFW(R_TYPE) (rel->r_info)) { + case R_X86_64_GOT32: + case R_X86_64_GOTPCREL: + case R_X86_64_PLT32: + fill_got_entry(s1, rel); + break; + } + } + } +} + + /* output an ELF file */ /* XXX: suppress unneeded sections */ static int elf_output_file(TCCState *s1, const char *filename) @@ -1985,6 +2027,8 @@ static int elf_output_file(TCCState *s1, const char *filename) else ehdr.e_entry = text_section->sh_addr; /* XXX: is it correct ? */ } + if (file_type == TCC_OUTPUT_EXE && s1->static_link) + fill_got(s1); /* write elf file */ if (file_type == TCC_OUTPUT_OBJ) |