LLVM does not inject gcc-runtime

[pearzt]

Steps to reproduce

My system compiler is GCC 11.4.1, but I installed GCC 15.2.0 using Spack, before building LLVM 21.1.8 with this new GCC. Then, I want to compile Score-P with LLVM.

Simple Spack environment:

spack:
  specs:
  - 'llvm@21 +flang %gcc@15'
  - scorep %c,cxx,fortran=llvm
  view: true
  concretizer:
    unify: true

Concretization and installation works as expected.

Output of `spack spec` in the environment

$ spack spec
[+]  llvm@21.1.8+clang~cuda+flang~gold~ipo+libomptarget~libomptarget_debug~link_llvm_dylib+lld+lldb+llvm_dylib+lua~mlir+offload+polly~python~split_dwarf+utils~z3~zstd build_system=cmake build_type=Release compiler-rt=runtime generator=ninja libcxx=runtime libunwind=runtime openmp=runtime shlib_symbol_version=none targets:=aarch64,amdgpu,nvptx,x86 version_suffix=none platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@15.2.0
[+]      ^cmake@3.31.11~doc+ncurses+ownlibs~qtgui build_system=generic build_type=Release platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@15.2.0
[+]          ^curl@8.18.0~gssapi~ldap~libidn2~librtmp~libssh~libssh2+nghttp2 build_system=autotools libs:=shared,static tls:=openssl platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@15.2.0
[+]              ^nghttp2@1.67.1 build_system=autotools platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@15.2.0
[+]      ^compiler-wrapper@1.0 build_system=generic platform=linux os=rhel9 target=cascadelake 
[+]      ^gcc@15.2.0+binutils+bootstrap~graphite+libsanitizer~mold~nvptx~piclibs~profiled~strip build_system=autotools build_type=RelWithDebInfo languages:='c,c++,fortran' patches:=0999dbf platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@11.4.1
[+]          ^binutils@2.46.0~debuginfod+gas~gprofng~headers~interwork+ld~libiberty~lto~nls~pgo+plugins build_system=autotools compress_debug_sections=zlib libs:=shared,static platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@11.4.1
[+]          ^diffutils@3.12 build_system=autotools platform=linux os=rhel9 target=cascadelake %c=gcc@11.4.1
[+]          ^gawk@5.3.2~nls build_system=autotools platform=linux os=rhel9 target=cascadelake %c=gcc@11.4.1
[e]          ^gcc@11.4.1+binutils+bootstrap~graphite+libsanitizer~nvptx~piclibs~profiled~strip build_system=autotools build_type=RelWithDebInfo languages:='c,c++,fortran' platform=linux os=rhel9 target=x86_64 
[+]          ^gcc-runtime@11.4.1 build_system=generic platform=linux os=rhel9 target=cascadelake 
[+]          ^gmp@6.3.0+cxx build_system=autotools libs:=shared,static platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@11.4.1
[+]              ^autoconf@2.72 build_system=autotools platform=linux os=rhel9 target=cascadelake 
[+]              ^m4@1.4.21+sigsegv build_system=autotools platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@11.4.1
[+]                  ^libsigsegv@2.15 build_system=autotools platform=linux os=rhel9 target=cascadelake %c=gcc@11.4.1
[+]          ^libtool@2.5.4 build_system=autotools platform=linux os=rhel9 target=cascadelake %c=gcc@11.4.1
[+]              ^findutils@4.10.0 build_system=autotools patches:=440b954 platform=linux os=rhel9 target=cascadelake %c=gcc@11.4.1
[+]          ^mpc@1.3.1 build_system=autotools libs:=shared,static platform=linux os=rhel9 target=cascadelake %c=gcc@11.4.1
[+]          ^mpfr@4.2.2 build_system=autotools libs:=shared,static platform=linux os=rhel9 target=cascadelake %c=gcc@11.4.1
[+]              ^autoconf-archive@2024.10.16 build_system=autotools platform=linux os=rhel9 target=cascadelake 
[+]          ^perl@5.42.0+cpanm+opcode+open+shared+threads build_system=generic platform=linux os=rhel9 target=cascadelake %c=gcc@11.4.1
[+]              ^berkeley-db@18.1.40+cxx~docs+stl build_system=autotools patches:=26090f4,b231fcc platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@11.4.1
[+]          ^texinfo@7.2~xs build_system=autotools platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@11.4.1
[+]          ^zstd@1.5.7+programs build_system=makefile compression:=none libs:=shared,static platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@11.4.1
[+]      ^gcc-runtime@15.2.0 build_system=generic platform=linux os=rhel9 target=cascadelake 
[e]      ^glibc@2.34 build_system=autotools platform=linux os=rhel9 target=x86_64 
[+]      ^hwloc@2.13.0~cairo~cuda~gl~level_zero~libudev+libxml2~nvml~opencl+pci~rocm build_system=autotools libs:=shared,static patches:=b4db98b platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@15.2.0
[+]          ^libpciaccess@0.17 build_system=autotools platform=linux os=rhel9 target=cascadelake %c=gcc@15.2.0
[+]              ^util-macros@1.20.2 build_system=autotools platform=linux os=rhel9 target=cascadelake 
[+]      ^libedit@3.1-20240808 build_system=autotools platform=linux os=rhel9 target=cascadelake %c=gcc@15.2.0
[+]      ^libffi@3.5.2 build_system=autotools platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@15.2.0
[+]      ^libxml2@2.15.1+pic~python+shared build_system=autotools platform=linux os=rhel9 target=cascadelake %c=gcc@11.4.1
[+]          ^libiconv@1.18 build_system=autotools libs:=shared,static platform=linux os=rhel9 target=cascadelake %c=gcc@11.4.1
[+]      ^lua@5.3.6+shared build_system=makefile fetcher=curl platform=linux os=rhel9 target=cascadelake %c=gcc@15.2.0
[+]          ^readline@8.3 build_system=autotools patches:=21f0a03 platform=linux os=rhel9 target=cascadelake %c=gcc@11.4.1
[+]          ^unzip@6.0 build_system=makefile patches:=179330d,24582ff,251d575,3371314,44599c8,47e9def,4e5a081,59c0983,64f6498,74bc961,7d8e5c7,81ca46c,881d2ed,aced0f2,b6f64d7,b7a14c3,c9a863e,ee9e260,f6f6236,f88b9d4,fde8f9d platform=linux os=rhel9 target=cascadelake %c=gcc@15.2.0
[+]      ^ncurses@6.6~symlinks+termlib abi=none build_system=autotools patches:=7a351bc platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@11.4.1
[+]      ^ninja@1.13.2+re2c build_system=generic platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@15.2.0
[+]          ^re2c@4.4 build_system=autotools platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@15.2.0
[+]      ^perl-data-dumper@2.173 build_system=perl platform=linux os=rhel9 target=cascadelake 
[+]      ^pkgconf@2.5.1 build_system=autotools platform=linux os=rhel9 target=cascadelake %c=gcc@11.4.1
[+]      ^python@3.14.3+bz2+ctypes+dbm~debug~freethreading+libxml2+lzma~optimizations+pic+pyexpat+pythoncmd+readline+shared+sqlite3+ssl~static~tests~tkinter+uuid+zlib+zstd build_system=generic platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@15.2.0
[+]          ^bzip2@1.0.8~debug~pic+shared build_system=generic platform=linux os=rhel9 target=cascadelake %c=gcc@11.4.1
[+]          ^expat@2.7.4+libbsd build_system=autotools platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@15.2.0
[+]              ^libbsd@0.12.2 build_system=autotools platform=linux os=rhel9 target=cascadelake %c=gcc@15.2.0
[+]                  ^libmd@1.1.0 build_system=autotools platform=linux os=rhel9 target=cascadelake %c=gcc@15.2.0
[+]          ^gdbm@1.26 build_system=autotools platform=linux os=rhel9 target=cascadelake %c=gcc@11.4.1
[+]          ^gettext@1.0+bzip2+curses+git~libunistring+libxml2+pic+shared+tar+xz build_system=autotools platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@11.4.1
[+]              ^tar@1.35 build_system=autotools zip=pigz platform=linux os=rhel9 target=cascadelake %c=gcc@11.4.1
[+]                  ^pigz@2.8 build_system=makefile platform=linux os=rhel9 target=cascadelake %c=gcc@11.4.1
[+]          ^openssl@3.6.1~docs+shared build_system=generic certs=mozilla platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@15.2.0
[+]              ^ca-certificates-mozilla@2025-08-12 build_system=generic platform=linux os=rhel9 target=cascadelake 
[+]          ^sqlite@3.51.2+column_metadata+fts+rtree build_system=autotools platform=linux os=rhel9 target=cascadelake %c=gcc@15.2.0
[+]          ^util-linux-uuid@2.41 build_system=autotools platform=linux os=rhel9 target=cascadelake %c=gcc@15.2.0
[+]      ^swig@4.4.1 build_system=autotools platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@15.2.0
[+]          ^pcre2@10.44~jit+multibyte+pic build_system=autotools platform=linux os=rhel9 target=cascadelake %c=gcc@15.2.0
[+]      ^xz@5.8.2~pic build_system=autotools libs:=shared,static platform=linux os=rhel9 target=cascadelake %c=gcc@11.4.1
[+]      ^zlib-ng@2.3.3+compat+new_strategies+opt+pic+shared build_system=autotools platform=linux os=rhel9 target=cascadelake %c,cxx=gcc@11.4.1
[+]  scorep@9.4+binutils~cuda+fortran+gotcha~hip+llvm-plugin+mpi+mpi_f08+papi~shmem~unwind build_system=autotools platform=linux os=rhel9 target=cascadelake %c,cxx,fortran=clang@21.1.8
[+]      ^binutils@2.46.0~debuginfod~gas+gprofng+headers~interwork~ld+libiberty~lto~nls~pgo+plugins build_system=autotools compress_debug_sections=zlib libs:=shared,static platform=linux os=rhel9 target=cascadelake %c,cxx=clang@21.1.8
[+]          ^bison@3.8.2~color build_system=autotools platform=linux os=rhel9 target=cascadelake %c,cxx=clang@21.1.8
[+]              ^m4@1.4.21~sigsegv build_system=autotools platform=linux os=rhel9 target=cascadelake %c,cxx=clang@21.1.8
[+]      ^cubelib@4.9 build_system=autotools platform=linux os=rhel9 target=cascadelake %c,cxx=clang@21.1.8
[+]      ^cubew@4.9 build_system=autotools platform=linux os=rhel9 target=cascadelake %c,cxx=clang@21.1.8
[+]      ^gmake@4.4.1~guile build_system=generic platform=linux os=rhel9 target=cascadelake %c=gcc@11.4.1
[+]      ^gotcha@1.0.8~ipo~test build_system=cmake build_type=Release commit=4b74402f37c28c43acb401ac63ecc20abc95d107 generator=make platform=linux os=rhel9 target=cascadelake %c,cxx=clang@21.1.8
[+]      ^opari2@2.0.9 build_system=autotools platform=linux os=rhel9 target=cascadelake %c,cxx,fortran=clang@21.1.8
[+]      ^openmpi@5.0.10+atomics~cuda~debug+fortran~gpfs~internal-hwloc+internal-libevent+internal-pmix~ipv6~java~lustre~memchecker~openshmem~rocm~romio+rsh~static~two_level_namespace+vt+wrapper-rpath build_system=autotools fabrics:=none romio-filesystem:=none schedulers:=none platform=linux os=rhel9 target=cascadelake %c,cxx,fortran=clang@21.1.8
[+]          ^autoconf@2.72 build_system=autotools platform=linux os=rhel9 target=cascadelake 
[+]          ^automake@1.18.1 build_system=autotools platform=linux os=rhel9 target=cascadelake %c=gcc@11.4.1
[+]          ^numactl@2.0.19 build_system=autotools platform=linux os=rhel9 target=cascadelake %c=clang@21.1.8
[+]          ^openssh@10.2p1~gssapi build_system=autotools platform=linux os=rhel9 target=cascadelake %c,cxx=clang@21.1.8
[+]              ^libxcrypt@4.5.2~obsolete_api build_system=autotools platform=linux os=rhel9 target=cascadelake %c=clang@21.1.8
[+]      ^otf2@3.1.1 build_system=autotools patches:=7e56d93 platform=linux os=rhel9 target=cascadelake %c,cxx,fortran=clang@21.1.8
[+]          ^python@3.13.12+bz2+ctypes+dbm~debug~freethreading~libxml2+lzma~optimizations+pic+pyexpat+pythoncmd+readline+shared~sqlite3+ssl~static~tests~tkinter~uuid+zlib build_system=generic platform=linux os=rhel9 target=cascadelake %c,cxx=clang@21.1.8
[+]              ^expat@2.7.4~libbsd build_system=autotools platform=linux os=rhel9 target=cascadelake %c,cxx=clang@21.1.8
[+]          ^python-venv@1.0 build_system=generic platform=linux os=rhel9 target=cascadelake 
[+]      ^papi@7.2.0~cuda~debug+example~infiniband~lmsensors~nvml~powercap~rapl+rdpmc~rocm~rocm_smi~rocp_sdk~sde+shared~static_tools~topdown build_system=autotools patches:=fab5f67 platform=linux os=rhel9 target=cascadelake %c,cxx,fortran=clang@21.1.8

Lock file (.txt suffix to make the GitHub upload work): spack.lock.txt

Error message

Score-P is not functional due to a libstdc++ version mismatch:

$ scorep
scorep: <spack root>/opt/spack/linux-cascadelake/gcc-runtime-11.4.1-oua7dr6btvikf4a7jbazhgnkxwxapoex/lib/libstdc++.so.6: version `GLIBCXX_3.4.32' not found (required by scorep)
scorep: <spack root>/opt/spack/linux-cascadelake/gcc-runtime-11.4.1-oua7dr6btvikf4a7jbazhgnkxwxapoex/lib/libstdc++.so.6: version `GLIBCXX_3.4.30' not found (required by scorep)

Spack seems to put the wrong version of gcc-runtime into the RPATH of the scorep binary:

$ readelf -d $(which scorep) | grep RPATH
0x000000000000000f (RPATH)              Library rpath: [<...>:<spack root>/opt/spack/linux-cascadelake/gcc-runtime-11.4.1-oua7dr6btvikf4a7jbazhgnkxwxapoex/lib:<...>]

$ spack build-env scorep -- env | grep SPACK_STORE_RPATH_DIRS
SPACK_STORE_RPATH_DIRS=<...>:<spack root>/opt/spack/linux-cascadelake/gcc-runtime-11.4.1-oua7dr6btvikf4a7jbazhgnkxwxapoex/lib:<...>

If this is not a bug in how Spack sets up the build environment, I'm happy to re-open this in spack-packages.

Information on your system

• Spack: 1.1.1 (spack/spack@2e2169d)
• Builtin repo: 6dcfe9b
• Python: 3.9.18
• Platform: linux-rhel9-cascadelake

$ spack compiler list
==> Available compilers
-- gcc rhel9-x86_64 ---------------------------------------------
[e]  gcc@11.4.1  [+]  gcc@15.2.0

-- llvm rhel9-x86_64 --------------------------------------------
[+]  llvm@21.1.8

General information

• I have run spack debug report and reported the version of Spack/Python/Platform
• I have searched the issues of this repo and believe this is not a duplicate
• I have run the failing commands in debug mode and reported the output

[pearzt]

Just in case anybody else is struggling with this: I was able to work around this by building GCC 15 manually (outside of Spack) and then defining it as an external package. This keeps gcc-runtime@11 entirely out of the environment, thus avoiding the reported problem.

[haampie]

Yeah, llvm is not (yet) injecting gcc-runtime based on its gcc dep.

I think this can be solved entirely over at spack-packages, so will transfer it.

[rbberger]

One complication I see here is that external compilers can't have a gcc dep at the moment.

[rbberger]

@pearzt can you try out #3880? It should inject the right dependencies. You might have to rebuild your LLVM though, since I'm also doing some binutils changes that manipulate the LLVM config files for the compilers.

[pearzt]

Done, see my comment in #3880