ppc64el gold linker produces unusable clang-16 binary

[Gianfranco Costamagna]

root@Unimatrix08-Jammy:/clang# /usr/bin/g++-12 -O3 -fstack-protector-strong -Wformat -Werror=format-security -Wno-unused-command-line-argument -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-maybe-uninitialized -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -fdebug-prefix-map=/llvm-toolchain-16-16.0.5/build-llvm=build-llvm -fdebug-prefix-map=/llvm-toolchain-16-16.0.5/= -no-canonical-prefixes -ffile-prefix-map=/llvm-toolchain-16-16.0.5/build-llvm=build-llvm -ffile-prefix-map=/llvm-toolchain-16-16.0.5/= -no-canonical-prefixes -fno-common -Woverloaded-virtual -fno-strict-aliasing -O3 -DNDEBUG -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,--build-id -fuse-ld=bfd -Wl,--gc-sections tools/clang/tools/driver/CMakeFiles/clang.dir/driver.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/cc1_main.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/cc1as_main.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/cc1gen_reproducer_main.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/clang-driver.cpp.o -o bin/clang-16-bfd -Wl,-rpath,"\$ORIGIN/../lib:" lib/libLLVMPowerPCCodeGen.a lib/libLLVMPowerPCAsmParser.a lib/libLLVMPowerPCDesc.a lib/libLLVMPowerPCDisassembler.a lib/libLLVMPowerPCInfo.a lib/libLLVMAnalysis.a lib/libLLVMCodeGen.a lib/libLLVMCore.a lib/libLLVMipo.a lib/libLLVMAggressiveInstCombine.a lib/libLLVMInstCombine.a lib/libLLVMInstrumentation.a lib/libLLVMMC.a lib/libLLVMMCParser.a lib/libLLVMObjCARCOpts.a lib/libLLVMOption.a lib/libLLVMScalarOpts.a lib/libLLVMSupport.a lib/libLLVMTargetParser.a lib/libLLVMTransformUtils.a lib/libLLVMVectorize.a lib/libclangBasic.a lib/libclangCodeGen.a lib/libclangDriver.a lib/libclangFrontend.a lib/libclangFrontendTool.a lib/libclangSerialization.a lib/libLLVMAsmPrinter.a lib/libLLVMGlobalISel.a lib/libLLVMSelectionDAG.a lib/libLLVMMCDisassembler.a lib/libclangCodeGen.a lib/libLLVMCoverage.a lib/libLLVMLTO.a lib/libLLVMExtensions.a lib/libPolly.a lib/libPollyISL.a lib/libLLVMPasses.a lib/libLLVMCodeGen.a lib/libLLVMObjCARCOpts.a lib/libLLVMTarget.a lib/libLLVMCoroutines.a lib/libLLVMipo.a lib/libLLVMInstrumentation.a lib/libLLVMVectorize.a lib/libLLVMBitWriter.a lib/libLLVMLinker.a lib/libLLVMIRPrinter.a lib/libclangExtractAPI.a lib/libclangRewriteFrontend.a lib/libclangARCMigrate.a lib/libclangStaticAnalyzerFrontend.a lib/libclangStaticAnalyzerCheckers.a lib/libclangStaticAnalyzerCore.a lib/libclangCrossTU.a lib/libclangIndex.a lib/libclangFrontend.a lib/libclangDriver.a lib/libLLVMWindowsDriver.a lib/libLLVMOption.a lib/libclangParse.a lib/libclangSerialization.a lib/libclangSema.a lib/libclangAnalysis.a lib/libclangASTMatchers.a lib/libLLVMFrontendHLSL.a lib/libclangEdit.a lib/libclangSupport.a lib/libclangAST.a lib/libLLVMFrontendOpenMP.a lib/libLLVMScalarOpts.a lib/libLLVMAggressiveInstCombine.a lib/libLLVMInstCombine.a lib/libLLVMTransformUtils.a lib/libLLVMAnalysis.a lib/libLLVMProfileData.a lib/libLLVMSymbolize.a lib/libLLVMDebugInfoDWARF.a lib/libLLVMDebugInfoPDB.a lib/libLLVMObject.a lib/libLLVMMCParser.a lib/libLLVMMC.a lib/libLLVMIRReader.a lib/libLLVMBitReader.a lib/libLLVMAsmParser.a lib/libLLVMTextAPI.a lib/libLLVMDebugInfoCodeView.a lib/libLLVMDebugInfoMSF.a lib/libLLVMCore.a lib/libLLVMBinaryFormat.a lib/libLLVMRemarks.a lib/libLLVMBitstreamReader.a lib/libclangFormat.a lib/libclangToolingInclusions.a lib/libclangToolingCore.a lib/libclangRewrite.a lib/libclangLex.a lib/libclangBasic.a lib/libLLVMTargetParser.a lib/libLLVMSupport.a lib/libLLVMDemangle.a -lrt -ldl -lm /usr/lib/powerpc64le-linux-gnu/libz.so /usr/lib/powerpc64le-linux-gnu/libtinfo.so
root@Unimatrix08-Jammy:/clang# /usr/bin/g++-12 -O3 -fstack-protector-strong -Wformat -Werror=format-security -Wno-unused-command-line-argument -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-maybe-uninitialized -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -fdebug-prefix-map=/llvm-toolchain-16-16.0.5/build-llvm=build-llvm -fdebug-prefix-map=/llvm-toolchain-16-16.0.5/= -no-canonical-prefixes -ffile-prefix-map=/llvm-toolchain-16-16.0.5/build-llvm=build-llvm -ffile-prefix-map=/llvm-toolchain-16-16.0.5/= -no-canonical-prefixes -fno-common -Woverloaded-virtual -fno-strict-aliasing -O3 -DNDEBUG -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,--build-id -fuse-ld=gold -Wl,--gc-sections tools/clang/tools/driver/CMakeFiles/clang.dir/driver.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/cc1_main.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/cc1as_main.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/cc1gen_reproducer_main.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/clang-driver.cpp.o -o bin/clang-16 -Wl,-rpath,"\$ORIGIN/../lib:" lib/libLLVMPowerPCCodeGen.a lib/libLLVMPowerPCAsmParser.a lib/libLLVMPowerPCDesc.a lib/libLLVMPowerPCDisassembler.a lib/libLLVMPowerPCInfo.a lib/libLLVMAnalysis.a lib/libLLVMCodeGen.a lib/libLLVMCore.a lib/libLLVMipo.a lib/libLLVMAggressiveInstCombine.a lib/libLLVMInstCombine.a lib/libLLVMInstrumentation.a lib/libLLVMMC.a lib/libLLVMMCParser.a lib/libLLVMObjCARCOpts.a lib/libLLVMOption.a lib/libLLVMScalarOpts.a lib/libLLVMSupport.a lib/libLLVMTargetParser.a lib/libLLVMTransformUtils.a lib/libLLVMVectorize.a lib/libclangBasic.a lib/libclangCodeGen.a lib/libclangDriver.a lib/libclangFrontend.a lib/libclangFrontendTool.a lib/libclangSerialization.a lib/libLLVMAsmPrinter.a lib/libLLVMGlobalISel.a lib/libLLVMSelectionDAG.a lib/libLLVMMCDisassembler.a lib/libclangCodeGen.a lib/libLLVMCoverage.a lib/libLLVMLTO.a lib/libLLVMExtensions.a lib/libPolly.a lib/libPollyISL.a lib/libLLVMPasses.a lib/libLLVMCodeGen.a lib/libLLVMObjCARCOpts.a lib/libLLVMTarget.a lib/libLLVMCoroutines.a lib/libLLVMipo.a lib/libLLVMInstrumentation.a lib/libLLVMVectorize.a lib/libLLVMBitWriter.a lib/libLLVMLinker.a lib/libLLVMIRPrinter.a lib/libclangExtractAPI.a lib/libclangRewriteFrontend.a lib/libclangARCMigrate.a lib/libclangStaticAnalyzerFrontend.a lib/libclangStaticAnalyzerCheckers.a lib/libclangStaticAnalyzerCore.a lib/libclangCrossTU.a lib/libclangIndex.a lib/libclangFrontend.a lib/libclangDriver.a lib/libLLVMWindowsDriver.a lib/libLLVMOption.a lib/libclangParse.a lib/libclangSerialization.a lib/libclangSema.a lib/libclangAnalysis.a lib/libclangASTMatchers.a lib/libLLVMFrontendHLSL.a lib/libclangEdit.a lib/libclangSupport.a lib/libclangAST.a lib/libLLVMFrontendOpenMP.a lib/libLLVMScalarOpts.a lib/libLLVMAggressiveInstCombine.a lib/libLLVMInstCombine.a lib/libLLVMTransformUtils.a lib/libLLVMAnalysis.a lib/libLLVMProfileData.a lib/libLLVMSymbolize.a lib/libLLVMDebugInfoDWARF.a lib/libLLVMDebugInfoPDB.a lib/libLLVMObject.a lib/libLLVMMCParser.a lib/libLLVMMC.a lib/libLLVMIRReader.a lib/libLLVMBitReader.a lib/libLLVMAsmParser.a lib/libLLVMTextAPI.a lib/libLLVMDebugInfoCodeView.a lib/libLLVMDebugInfoMSF.a lib/libLLVMCore.a lib/libLLVMBinaryFormat.a lib/libLLVMRemarks.a lib/libLLVMBitstreamReader.a lib/libclangFormat.a lib/libclangToolingInclusions.a lib/libclangToolingCore.a lib/libclangRewrite.a lib/libclangLex.a lib/libclangBasic.a lib/libLLVMTargetParser.a lib/libLLVMSupport.a lib/libLLVMDemangle.a -lrt -ldl -lm /usr/lib/powerpc64le-linux-gnu/libz.so /usr/lib/powerpc64le-linux-gnu/libtinfo.so
root@Unimatrix08-Jammy:/clang# ./bin/clang-16 -v
qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Segmentation fault (core dumped)
root@Unimatrix08-Jammy:/clang# ./bin/clang-16-bfd -v
Ubuntu clang version 16.0.5
Target: powerpc64le-unknown-linux-gnu
Thread model: posix
InstalledDir: /clang/./bin
Found candidate GCC installation: /usr/lib/gcc/powerpc64le-linux-gnu/12
Selected GCC installation: /usr/lib/gcc/powerpc64le-linux-gnu/12
Candidate multilib: .;@m64
Selected multilib: .;@m64

With bfd everything works, with gold, I get a Segmentation Fault.
(Ubuntu mantic development release)

First broken version is 2.40-2ubuntu5
Last working version is 2.40-2ubuntu4

According to the diff only one powerpc change was added on gold linker
http://launchpadlibrarian.net/664314947/binutils_2.40-2ubuntu4_2.40-2ubuntu5.diff.gz

And its this one
https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=0961e631575b0a1eafccf32fbde56d456aef9169

[Gianfranco Costamagna (costamagnagianfranco)]

root@Unimatrix08-Jammy:/clang# /usr/bin/g++-12 -O3 -fstack-protector-strong -Wformat -Werror=format-security -Wno-unused-command-line-argument -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-maybe-uninitialized -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -fdebug-prefix-map=/llvm-toolchain-16-16.0.5/build-llvm=build-llvm -fdebug-prefix-map=/llvm-toolchain-16-16.0.5/= -no-canonical-prefixes -ffile-prefix-map=/llvm-toolchain-16-16.0.5/build-llvm=build-llvm -ffile-prefix-map=/llvm-toolchain-16-16.0.5/= -no-canonical-prefixes -fno-common -Woverloaded-virtual -fno-strict-aliasing -O3 -DNDEBUG -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,--build-id -fuse-ld=bfd -Wl,--gc-sections tools/clang/tools/driver/CMakeFiles/clang.dir/driver.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/cc1_main.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/cc1as_main.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/cc1gen_reproducer_main.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/clang-driver.cpp.o -o bin/clang-16-bfd -Wl,-rpath,"\$ORIGIN/../lib:" lib/libLLVMPowerPCCodeGen.a lib/libLLVMPowerPCAsmParser.a lib/libLLVMPowerPCDesc.a lib/libLLVMPowerPCDisassembler.a lib/libLLVMPowerPCInfo.a lib/libLLVMAnalysis.a lib/libLLVMCodeGen.a lib/libLLVMCore.a lib/libLLVMipo.a lib/libLLVMAggressiveInstCombine.a lib/libLLVMInstCombine.a lib/libLLVMInstrumentation.a lib/libLLVMMC.a lib/libLLVMMCParser.a lib/libLLVMObjCARCOpts.a lib/libLLVMOption.a lib/libLLVMScalarOpts.a lib/libLLVMSupport.a lib/libLLVMTargetParser.a lib/libLLVMTransformUtils.a lib/libLLVMVectorize.a lib/libclangBasic.a lib/libclangCodeGen.a lib/libclangDriver.a lib/libclangFrontend.a lib/libclangFrontendTool.a lib/libclangSerialization.a lib/libLLVMAsmPrinter.a lib/libLLVMGlobalISel.a lib/libLLVMSelectionDAG.a lib/libLLVMMCDisassembler.a lib/libclangCodeGen.a lib/libLLVMCoverage.a lib/libLLVMLTO.a lib/libLLVMExtensions.a lib/libPolly.a lib/libPollyISL.a lib/libLLVMPasses.a lib/libLLVMCodeGen.a lib/libLLVMObjCARCOpts.a lib/libLLVMTarget.a lib/libLLVMCoroutines.a lib/libLLVMipo.a lib/libLLVMInstrumentation.a lib/libLLVMVectorize.a lib/libLLVMBitWriter.a lib/libLLVMLinker.a lib/libLLVMIRPrinter.a lib/libclangExtractAPI.a lib/libclangRewriteFrontend.a lib/libclangARCMigrate.a lib/libclangStaticAnalyzerFrontend.a lib/libclangStaticAnalyzerCheckers.a lib/libclangStaticAnalyzerCore.a lib/libclangCrossTU.a lib/libclangIndex.a lib/libclangFrontend.a lib/libclangDriver.a lib/libLLVMWindowsDriver.a lib/libLLVMOption.a lib/libclangParse.a lib/libclangSerialization.a lib/libclangSema.a lib/libclangAnalysis.a lib/libclangASTMatchers.a lib/libLLVMFrontendHLSL.a lib/libclangEdit.a lib/libclangSupport.a lib/libclangAST.a lib/libLLVMFronte...

[Gianfranco Costamagna (costamagnagianfranco)]

https://drive.abinsula.com/index.php/s/UAPjvTzcXNc3Bhi

Here you can find the .a libraries and the clang binaries.

[Gianfranco Costamagna (costamagnagianfranco)]

Confirmed also on
2.40.50.20230611-2ubuntu1

[Alan Modra (amodra-gmail)]

When I build clang-16 from your object files (plus my system libraries and startup files) for powerpc64le using gold 2.40.50.20230614 I get exactly the same binary as when using gold 2.39.0.20230101. That's comparing gold from the tip of master and binutils-2_39-branch in sourceware.org/git/binutils-gdb.git. The latter does not have the commit you identify as causing a problem.

Very likely the reason why I don't see a problem is that my libz.so.1, libtinfo.so.5, libstdc++.so.6, libm.so.6, libgcc_s.so.1, libc.so.6, ld64.so.2, or startup files are different to yours.

[Gianfranco Costamagna (costamagnagianfranco)]

Hello Alan, thanks for the answer.
I uploaded here [1] the .so files in a single directory

[1] https://drive.abinsula.com/index.php/s/NMDO384gjCOCEJw

With this command I could reproduce again the issue, let me know if it is enough
to have more information on the issue

In the meanwhile I patched llvm-* to link with bfd on p*pc* architectures, and its working great.

/usr/bin/g++-12 -O3 -fstack-protector-strong -Wformat -Werror=format-security -Wno-unused-command-line-argument -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-maybe-uninitialized -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -fdebug-prefix-map=/llvm-toolchain-16-16.0.5/build-llvm=build-llvm -fdebug-prefix-map=/llvm-toolchain-16-16.0.5/= -no-canonical-prefixes -ffile-prefix-map=/llvm-toolchain-16-16.0.5/build-llvm=build-llvm -ffile-prefix-map=/llvm-toolchain-16-16.0.5/= -no-canonical-prefixes -fno-common -Woverloaded-virtual -fno-strict-aliasing -O3 -DNDEBUG -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,--build-id -fuse-ld=gold -Wl,--gc-sections tools/clang/tools/driver/CMakeFiles/clang.dir/driver.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/cc1_main.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/cc1as_main.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/cc1gen_reproducer_main.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/clang-driver.cpp.o -o bin/clang-16 -Wl,-rpath,"\$ORIGIN/../lib:" lib/libLLVMPowerPCCodeGen.a lib/libLLVMPowerPCAsmParser.a lib/libLLVMPowerPCDesc.a lib/libLLVMPowerPCDisassembler.a lib/libLLVMPowerPCInfo.a lib/libLLVMAnalysis.a lib/libLLVMCodeGen.a lib/libLLVMCore.a lib/libLLVMipo.a lib/libLLVMAggressiveInstCombine.a lib/libLLVMInstCombine.a lib/libLLVMInstrumentation.a lib/libLLVMMC.a lib/libLLVMMCParser.a lib/libLLVMObjCARCOpts.a lib/libLLVMOption.a lib/libLLVMScalarOpts.a lib/libLLVMSupport.a lib/libLLVMTargetParser.a lib/libLLVMTransformUtils.a lib/libLLVMVectorize.a lib/libclangBasic.a lib/libclangCodeGen.a lib/libclangDriver.a lib/libclangFrontend.a lib/libclangFrontendTool.a lib/libclangSerialization.a lib/libLLVMAsmPrinter.a lib/libLLVMGlobalISel.a lib/libLLVMSelectionDAG.a lib/libLLVMMCDisassembler.a lib/libclangCodeGen.a lib/libLLVMCoverage.a lib/libLLVMLTO.a lib/libLLVMExtensions.a lib/libPolly.a lib/libPollyISL.a lib/libLLVMPasses.a lib/libLLVMCodeGen.a lib/libLLVMObjCARCOpts.a lib/libLLVMTarget.a lib/libLLVMCoroutines.a lib/libLLVMipo.a lib/libLLVMInstrumentation.a lib/libLLVMVectorize.a lib/libLLVMBitWriter.a lib/libLLVMLinker.a lib/libLLVMIRPrinter.a lib/libclangExtractAPI.a lib/libclangRewriteFrontend.a lib/libclangARCMigrate.a lib/libclangStaticAnalyzerFrontend.a lib/libclangStaticAnalyzerCheckers.a lib/libclangStaticAnalyzerCore.a lib/libclangCrossTU.a lib/li...

[Alan Modra (amodra-gmail)]

Linking with your .so files still doesn't give me any difference between gold-2.39 and gold mainline. I'm using my crt*.o, libc_nonshared.a, libgcc.a. From ld -t output it seems nothing from libc_nonshared.a or libgcc.a is extracted, so the only real difference ought to be crt1.o, crti.o, crtn.o, crtbegin.o and crtend.o. Please supply them too. For reference the linker command line I'm using on my x86_64 to powerpc64le cross compiler setup is:

~/build/gas/all/gold/ld-new --sysroot=/home/gnu/powerpc64le-linux-gnu --eh-frame-hdr -m elf64lppc -dynamic-linker /lib64/ld64.so.2 -o bin/clang-16 /home/gnu/powerpc64le-linux-gnu/usr/lib64/crt1.o /home/gnu/powerpc64le-linux-gnu/usr/lib64/crti.o /usr/local/lib/gcc/powerpc64le-linux-gnu/12.2.0/crtbegin.o -L/usr/local/lib/gcc/powerpc64le-linux-gnu/12.2.0 -v -Bsymbolic-functions -z relro --build-id --gc-sections tools/clang/tools/driver/CMakeFiles/clang.dir/driver.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/cc1_main.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/cc1as_main.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/cc1gen_reproducer_main.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/clang-driver.cpp.o -rpath $ORIGIN/../lib: lib/libLLVMPowerPCCodeGen.a lib/libLLVMPowerPCAsmParser.a lib/libLLVMPowerPCDesc.a lib/libLLVMPowerPCDisassembler.a lib/libLLVMPowerPCInfo.a lib/libLLVMAnalysis.a lib/libLLVMCodeGen.a lib/libLLVMCore.a lib/libLLVMipo.a lib/libLLVMAggressiveInstCombine.a lib/libLLVMInstCombine.a lib/libLLVMInstrumentation.a lib/libLLVMMC.a lib/libLLVMMCParser.a lib/libLLVMObjCARCOpts.a lib/libLLVMOption.a lib/libLLVMScalarOpts.a lib/libLLVMSupport.a lib/libLLVMTargetParser.a lib/libLLVMTransformUtils.a lib/libLLVMVectorize.a lib/libclangBasic.a lib/libclangCodeGen.a lib/libclangDriver.a lib/libclangFrontend.a lib/libclangFrontendTool.a lib/libclangSerialization.a lib/libLLVMAsmPrinter.a lib/libLLVMGlobalISel.a lib/libLLVMSelectionDAG.a lib/libLLVMMCDisassembler.a lib/libclangCodeGen.a lib/libLLVMCoverage.a lib/libLLVMLTO.a lib/libLLVMExtensions.a lib/libPolly.a lib/libPollyISL.a lib/libLLVMPasses.a lib/libLLVMCodeGen.a lib/libLLVMObjCARCOpts.a lib/libLLVMTarget.a lib/libLLVMCoroutines.a lib/libLLVMipo.a lib/libLLVMInstrumentation.a lib/libLLVMVectorize.a lib/libLLVMBitWriter.a lib/libLLVMLinker.a lib/libLLVMIRPrinter.a lib/libclangExtractAPI.a lib/libclangRewriteFrontend.a lib/libclangARCMigrate.a lib/libclangStaticAnalyzerFrontend.a lib/libclangStaticAnalyzerCheckers.a lib/libclangStaticAnalyzerCore.a lib/libclangCrossTU.a lib/libclangIndex.a lib/libclangFrontend.a lib/libclangDriver.a lib/libLLVMWindowsDriver.a lib/libLLVMOption.a lib/libclangParse.a lib/libclangSerialization.a lib/libclangSema.a lib/libclangAnalysis.a lib/libclangASTMatchers.a lib/libLLVMFrontendHLSL.a lib/libclangEdit.a lib/libclangSupport.a lib/libclangAST.a lib/libLLVMFrontendOpenMP.a lib/libLLVMScalarOpts.a lib/libLLVMAggressiveInstCombine.a lib/libLLVMInstCombine.a lib/libLLVMTransformUtils.a lib/libLLVMAnalysis.a lib/libLLVMProfileData.a lib/libLLVMSymbolize.a lib/libLLVMDebugInfoDWARF.a lib/libLLVMDebugInfoPDB.a lib/libLLVMObject.a lib/libLLVMMCParser.a lib/libLLVMMC.a lib/libLLVMIRReader.a lib/l...

[Gianfranco Costamagna (costamagnagianfranco)]

Created attachment 14939
crt*.o files

[Alan Modra (amodra-gmail)]

I've been going down the wrong rabbit hole, I should have asked you at the outset to post the result of your g++ command with -v added. That would have shown your compiler is defaulting to PIEs while mine is not. Adding -pie to the gold command line shows a huge number of relative dynamic relocations are missing from 2.40 and mainline compared to 2.39.

[Cvs-commit (cvs-commit)]

The master branch has been updated by Alan Modra <email address hidden>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=dc808a2ebab337b5517add4c1aad298cf836c239

commit dc808a2ebab337b5517add4c1aad298cf836c239
Author: Alan Modra <email address hidden>
Date: Wed Jun 21 22:44:09 2023 +0930

    PR30536, ppc64el gold linker produces unusable clang-16 binary

    In commit 0961e631575b, the fix for PR30217, make_lplt_section and
    make_brlt_section were changed to use rela_dyn_ rather than their own
    separate dynamic reloc sections. This fails miserably whenever brlt_
    is needed for long branches, due to needing to iterate sizing and thus
    reset brlt_ sizes.

            PR 30536
            PR 30217
            * powerpc.cc (Target_powerpc::make_brlt_section): Don't use
            rela_dyn_.

[Cvs-commit (cvs-commit)]

The binutils-2_40-branch branch has been updated by Alan Modra <email address hidden>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=03f49a0619c5598eea80511efef5a88c4f7bb293

commit 03f49a0619c5598eea80511efef5a88c4f7bb293
Author: Alan Modra <email address hidden>
Date: Wed Jun 21 22:44:09 2023 +0930

    PR30536, ppc64el gold linker produces unusable clang-16 binary

    In commit 0961e631575b, the fix for PR30217, make_lplt_section and
    make_brlt_section were changed to use rela_dyn_ rather than their own
    separate dynamic reloc sections. This fails miserably whenever brlt_
    is needed for long branches, due to needing to iterate sizing and thus
    reset brlt_ sizes.

            PR 30536
            PR 30217
            * powerpc.cc (Target_powerpc::make_brlt_section): Don't use
            rela_dyn_.

    (cherry picked from commit dc808a2ebab337b5517add4c1aad298cf836c239)

[Alan Modra (amodra-gmail)]

Should now be fixed.

[Gianfranco Costamagna (costamagnagianfranco)]

thanks! I'll test shortly!

[Gianfranco Costamagna (costamagnagianfranco)]

Hello, testing was successful, thanks!