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x86-64: Now TCC can create healthy shared objects from object files generated by GCC 

- Handle R_X86_64_GOTPCREL.
- Output R_X86_64_RELATIVE reloc generated from R_X86_64_64.
tcc-xref
Shinichiro Hamaji 2009-04-05 02:07:19 +09:00 committed by grischka
parent 754b0beb7d
commit 97072b3cd7
1 changed files with 8 additions and 2 deletions
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10
tccelf.c
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@ -728,6 +728,10 @@ static void relocate_section(TCCState *s1, Section *s)
break;
case R_X86_64_GOTPCREL:
*(int *)ptr += s1->got->sh_addr - addr;
/* XXX: is this OK? */
if (s1->output_type == TCC_OUTPUT_DLL) {
*(int *)ptr += s1->got_offsets[sym_index] - 4;
}
break;
case R_X86_64_GOTTPOFF:
*(int *)ptr += val - s1->got->sh_addr;
@ -779,6 +783,7 @@ static int prepare_dynamic_rel(TCCState *s1, Section *sr)
#elif defined(TCC_TARGET_X86_64)
case R_X86_64_32:
case R_X86_64_32S:
case R_X86_64_64:
#endif
count++;
break;
@ -1079,11 +1084,12 @@ static void build_got_entries(TCCState *s1)
case R_X86_64_PLT32:
if (!s1->got)
build_got(s1);
if (type == R_X86_64_GOT32 || type == R_X86_64_PLT32) {
if (type == R_X86_64_GOT32 || type == R_X86_64_GOTPCREL ||
type == R_X86_64_PLT32) {
sym_index = ELFW(R_SYM)(rel->r_info);
sym = &((ElfW(Sym) *)symtab_section->data)[sym_index];
/* look at the symbol got offset. If none, then add one */
if (type == R_X86_64_GOT32)
if (type == R_X86_64_GOT32 || type == R_X86_64_GOTPCREL)
reloc_type = R_X86_64_GLOB_DAT;
else
reloc_type = R_X86_64_JUMP_SLOT;