mold

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mold version 1.2.1 does not recognize the option: copy-dt-needed-entries when provided as an argument to gcc 10.3.0 as -Wl,--copy-dt-needed-entries.

Please could you let me know if there is a workaround

Thank you

We want to support this flag.

This option doesn't make sense and the converse (--no-copy-dt-needed-entries) has been the GNU ld default for a very long time (around 2.22/2.23). I am not even sure what software still uses this option.

@ewellthorpe As @MaskRay said, can you first try to just remove the flag from your command line? If it doesn't work for you, please reopen this issue.

The blender build tool-chain or at least one from aur (blender-git) uses this flag and fails if i use mold. As far as i can tell this is part of compiler testing, so it might be more widespread.

loading initial cache file /home/user/.cache/paru/clone/blender-git/src/blender/build_files/cmake/config/blender_release.cmake
-- The C compiler identification is Clang 15.0.7
-- The CXX compiler identification is Clang 15.0.7
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - failed
-- Check for working C compiler: /usr/bin/clang
-- Check for working C compiler: /usr/bin/clang - broken
CMake Error at /usr/share/cmake/Modules/CMakeTestCCompiler.cmake:67 (message):
  The C compiler

    "/usr/bin/clang"

  is not able to compile a simple test program.

  It fails with the following output:

    Change Dir: /home/user/.cache/paru/clone/blender-git/src/build/CMakeFiles/CMakeScratch/TryCompile-EZRS21
    
    Run Build Command(s):/usr/bin/cmake -E env VERBOSE=1 /usr/bin/make -f Makefile cmTC_173b0/fast && /usr/bin/make  -f CMakeFiles/cmTC_173b0.dir/build.make CMakeFiles/cmTC_173b0.dir/build
    make[1]: Entering directory '/home/user/.cache/paru/clone/blender-git/src/build/CMakeFiles/CMakeScratch/TryCompile-EZRS21'
    Building C object CMakeFiles/cmTC_173b0.dir/testCCompiler.c.o
    /usr/bin/clang   -march=native -O2 -pipe -fno-plt -fexceptions         -Wp,-D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security         -fstack-clash-protection -fcf-protection -flto=auto  -MD -MT CMakeFiles/cmTC_173b0.dir/testCCompiler.c.o -MF CMakeFiles/cmTC_173b0.dir/testCCompiler.c.o.d -o CMakeFiles/cmTC_173b0.dir/testCCompiler.c.o -c /home/user/.cache/paru/clone/blender-git/src/build/CMakeFiles/CMakeScratch/TryCompile-EZRS21/testCCompiler.c
    Linking C executable cmTC_173b0
    /usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_173b0.dir/link.txt --verbose=1
    /usr/bin/clang -march=native -O2 -pipe -fno-plt -fexceptions         -Wp,-D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security         -fstack-clash-protection -fcf-protection -flto=auto  -Wl,--copy-dt-needed-entries -Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now --ld-path=/usr/bin/mold -flto=auto  CMakeFiles/cmTC_173b0.dir/testCCompiler.c.o -o cmTC_173b0 
    mold: fatal: unknown command line option: --copy-dt-needed-entries
    clang-15: error: linker command failed with exit code 1 (use -v to see invocation)
    make[1]: *** [CMakeFiles/cmTC_173b0.dir/build.make:100: cmTC_173b0] Error 1
    make[1]: Leaving directory '/home/user/.cache/paru/clone/blender-git/src/build/CMakeFiles/CMakeScratch/TryCompile-EZRS21'
    make: *** [Makefile:127: cmTC_173b0/fast] Error 2
    
    

  

  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:108 (project)


-- Configuring incomplete, errors occurred!
==> ERROR: A failure occurred in build().
    Aborting...
error: failed to build 'blender-git-3.6.r123907.g98334b8f7df-1': 
error: packages failed to build: blender-git-3.6.r123907.g98334b8f7df-1

Patch to just ignore this option

diff --git a/elf/cmdline.cc b/elf/cmdline.cc
index b97ca74f..b6017b17 100644
--- a/elf/cmdline.cc
+++ b/elf/cmdline.cc
@@ -1114,6 +1114,7 @@ std::vector<std::string> parse_nonpositional_args(Context<E> &ctx) {
     } else if (read_z_flag("combreloc")) {
     } else if (read_z_flag("nocombreloc")) {
     } else if (read_z_arg("common-page-size")) {
+    } else if (read_flag("copy-dt-needed-entries")) {
     } else if (read_flag("no-keep-memory")) {
     } else if (read_arg("max-cache-size")) {
     } else if (read_arg("version-script")) {