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LibC+DynamicLoader: Move "transactional memory" GCC stubs to LibC

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Instead of having a special case in the dynamic loader where we ignore
TM-related GCC symbols, just stub them out in LibC like we already do
for various other things we don't support.
This commit is contained in:
Andreas Kling 2021-02-24 14:54:26 +01:00
parent 069fd58381
commit 7db8ccc0e4
3 changed files with 38 additions and 6 deletions
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6
Userland/Libraries/LibELF/DynamicLoader.cpp
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@ -427,12 +427,6 @@ DynamicLoader::RelocationResult DynamicLoader::do_relocation(size_t total_tls_si
auto symbol = relocation.symbol();
auto res = lookup_symbol(symbol);
if (!res.has_value()) {
// We do not support these
// TODO: Can we tell gcc not to generate the piece of code that uses these?
// (--disable-tm-clone-registry flag in gcc configuration?)
if (symbol.name().is_one_of("__deregister_frame_info"sv, "_ITM_registerTMCloneTable"sv, "_ITM_deregisterTMCloneTable"sv, "__register_frame_info"sv))
break;
if (symbol.bind() == STB_WEAK)
return RelocationResult::ResolveLater;