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LibELF: Implement TLS relocation support for x86_64

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Gunnar Beutner 2021-07-03 00:50:03 +02:00 • committed by Andreas Kling
parent c51b49a8cb
commit a0a38e1e84
1 changed files with 3 additions and 6 deletions
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9
Userland/Libraries/LibELF/DynamicLoader.cpp
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@ -478,6 +478,9 @@ DynamicLoader::RelocationResult DynamicLoader::do_relocation(const ELF::DynamicO
#ifndef __LP64__ #ifndef __LP64__
case R_386_TLS_TPOFF32: case R_386_TLS_TPOFF32:
case R_386_TLS_TPOFF: { case R_386_TLS_TPOFF: {
#else
case R_X86_64_TPOFF64: {
#endif
auto symbol = relocation.symbol(); auto symbol = relocation.symbol();
// For some reason, LibC has a R_386_TLS_TPOFF that refers to the undefined symbol.. huh // For some reason, LibC has a R_386_TLS_TPOFF that refers to the undefined symbol.. huh
if (relocation.symbol_index() == 0) if (relocation.symbol_index() == 0)
@ -490,12 +493,6 @@ DynamicLoader::RelocationResult DynamicLoader::do_relocation(const ELF::DynamicO
*patch_ptr = negative_offset_from_tls_block_end(res.value().value, dynamic_object_of_symbol->tls_offset().value(), res.value().size); *patch_ptr = negative_offset_from_tls_block_end(res.value().value, dynamic_object_of_symbol->tls_offset().value(), res.value().size);
break; break;
} }
#else
case R_X86_64_TPOFF64:
dbgln("FIXME: Patched R_X86_64_TPOFF64 relocation with invalid ptr.");
*patch_ptr = 0xaaaaaaaaaaaaaaaa;
break;
#endif
#ifndef __LP64__ #ifndef __LP64__
case R_386_JMP_SLOT: { case R_386_JMP_SLOT: {
#else #else