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This commit is contained in:
Rui Ueyama 2020-11-03 10:27:08 +09:00
parent b7f1009c0e
commit 1f590f9526
1 changed files with 13 additions and 4 deletions
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17
input_sections.cc
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@ -83,7 +83,6 @@ void InputSection::relocate(u8 *buf) {
Symbol *sym = file->get_symbol(sym_idx);
u8 *loc = buf + output_section->shdr.sh_offset + offset + rel.r_offset;
u64 G = sym ? sym->got_offset : 0;
u64 GOT = out::got->shdr.sh_addr;
u64 S = sym ? sym->addr : file->get_symbol_addr(sym_idx);
i64 A = rel.r_addend;
@ -99,7 +98,9 @@ void InputSection::relocate(u8 *buf) {
*(u32 *)loc = S + A - P;
break;
case R_X86_64_GOT32:
*(u64 *)loc = G + A;
if (!sym)
error("R_X86_64_GOT32 against a local symbol");
*(u64 *)loc = sym->got_offset + A;
break;
case R_X86_64_PLT32:
if (sym && sym->type == STT_GNU_IFUNC)
@ -108,7 +109,9 @@ void InputSection::relocate(u8 *buf) {
*(u32 *)loc = S + A - P; // todo
break;
case R_X86_64_GOTPCREL:
*(u32 *)loc = G + GOT + A - P;
if (!sym)
error("R_X86_64_GOTPCREL against a local symbol");
*(u32 *)loc = sym->got_offset + GOT + A - P;
break;
case R_X86_64_32:
case R_X86_64_32S:
@ -170,8 +173,14 @@ void InputSection::relocate(u8 *buf) {
*(u32 *)loc = GOT + A - P;
break;
case R_X86_64_GOTPCRELX:
if (!sym)
error("R_X86_64_GOTPCRELX against a local symbol");
*(u32 *)loc = sym->got_offset + GOT + A - P;
break;
case R_X86_64_REX_GOTPCRELX:
*(u32 *)loc = G + GOT + A - P;
if (!sym)
error("R_X86_64_REX_GOTPCRELX against a local symbol");
*(u32 *)loc = sym->got_offset + GOT + A - P;
break;
default:
error(toString(this) + ": unknown relocation: " + std::to_string(rel.getType(false)));