https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119369
--- Comment #7 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The trunk branch has been updated by Thomas Schwinge <tschwi...@gcc.gnu.org>: https://gcc.gnu.org/g:816335960d020eac92d49bc9cd13729afd313da7 commit r15-9122-g816335960d020eac92d49bc9cd13729afd313da7 Author: Thomas Schwinge <tschwi...@baylibre.com> Date: Sun Mar 30 14:54:01 2025 +0200 GCN, libstdc++: '#define _GLIBCXX_USE_WEAK_REF 0' [PR119369] This fixes a few hundreds of compilation/linking FAILs (similar to PR69506), where the GCN/LLVM 'ld' reported: ld: error: relocation R_AMDGPU_REL32_LO cannot be used against symbol '_ZGTtnam'; recompile with -fPIC >>> defined in [...]/amdgcn-amdhsa/./libstdc++-v3/src/.libs/libstdc++.a(cow-stdexcept.o) >>> referenced by cow-stdexcept.cc:259 ([...]/libstdc++-v3/src/c++11/cow-stdexcept.cc:259) >>> cow-stdexcept.o:(_txnal_cow_string_C1_for_exceptions(void*, char const*, void*)) in archive [...]/amdgcn-amdhsa/./libstdc++-v3/src/.libs/libstdc++.a ld: error: relocation R_AMDGPU_REL32_HI cannot be used against symbol '_ZGTtnam'; recompile with -fPIC >>> defined in [...]/amdgcn-amdhsa/./libstdc++-v3/src/.libs/libstdc++.a(cow-stdexcept.o) >>> referenced by cow-stdexcept.cc:259 ([...]/source-gcc/libstdc++-v3/src/c++11/cow-stdexcept.cc:259) >>> cow-stdexcept.o:(_txnal_cow_string_C1_for_exceptions(void*, char const*, void*)) in archive [...]/amdgcn-amdhsa/./libstdc++-v3/src/.libs/libstdc++.a [...] ..., which is: $ c++filt _ZGTtnam transaction clone for operator new[](unsigned long) ..., and similarly for other libitm symbols. However, the affected test cases, if applicable, then run into execution test FAILs, due to PR119369 "GCN: weak undefined symbols -> execution test FAIL, 'HSA_STATUS_ERROR_VARIABLE_UNDEFINED'". PR target/119369 libstdc++-v3/ * config/cpu/gcn/cpu_defines.h: New. * configure.host [GCN] (cpu_defines_dir): Point to it.
