guix: build for Linux HOSTS with -static-libgcc #33181

pull fanquake wants to merge 2 commits into bitcoin:master from fanquake:static_libgcc changing 2 files +8 −10
  1. fanquake commented at 10:13 am on August 13, 2025: member
    Build release binaries with -static-libgcc.
  2. DrahtBot added the label Build system on Aug 13, 2025
  3. DrahtBot commented at 10:13 am on August 13, 2025: contributor

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    Code Coverage & Benchmarks

    For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/33181.

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    Concept ACK theuni

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    Conflicts

    Reviewers, this pull request conflicts with the following ones:

    • #25573 ([POC] guix: produce a fully -static-pie bitcoind by fanquake)

    If you consider this pull request important, please also help to review the conflicting pull requests. Ideally, start with the one that should be merged first.

  4. fanquake added the label DrahtBot Guix build requested on Aug 17, 2025
  5. DrahtBot removed the label DrahtBot Guix build requested on Aug 19, 2025
  6. theuni commented at 3:35 pm on August 19, 2025: member

    Concept ACK.

    But note that this may require some care when we start shipping the kernel, as it likely needs to be built against a shared libgcc (and maybe libstdc++, depending on what our api/abi looks like at that point).

    Maybe add a note so we don’t forget?

  7. fanquake commented at 6:43 pm on August 19, 2025: member

    Maybe add a note so we don’t forget?

    Any preference to where we add that?

  8. fanquake force-pushed on Aug 21, 2025
  9. bitcoin deleted a comment on Aug 22, 2025
  10. fanquake force-pushed on Sep 9, 2025
  11. fanquake commented at 3:37 pm on September 9, 2025: member
    @theuni switched this to using CMAKE_EXE_LINKER_FLAGS, which should make it clearer which flags are being used for executables.
  12. theuni commented at 4:27 pm on September 9, 2025: member

    Switching to CMAKE_EXE_LINKER_FLAGS came out of an offline discussion with fanquake. @fanquake we want all flags passed to all binaries with the exception of -static-libstdc++ -static-libgcc, which should only go to exe’s.

    So I think we want: HOST_LDFLAGS="-Wl,--as-needed -Wl,--dynamic-linker=$glibc_dynamic_linker -Wl,-O2" CMAKE_EXE_LINKER_FLAGS="-static-libstdc++ -static-libgcc"

    Then for CMake, still pass LDFLAGS via HOST_LDFLAGS in addition to CMAKE_EXE_LINKER_FLAGS. That way exe’s will (should?) end up with both.

  13. fanquake commented at 4:35 pm on September 9, 2025: member
    Yea, I need to rework this in any case, as the macOS build breaks with the changes here.
  14. fanquake force-pushed on Sep 9, 2025
  15. guix: move static-libc++ into CMAKE_EXE_LINKER_FLAGS flags 
    Make it clearer that we are only applying this to executables.
    e78892cede
  16. fanquake force-pushed on Sep 10, 2025
  17. fanquake commented at 10:27 am on September 10, 2025: member
    @theuni fixed the approach.
  18. guix: build for Linux HOSTS with -static-libgcc 0520713033
  19. fanquake force-pushed on Sep 10, 2025
  20. fanquake commented at 11:42 am on September 10, 2025: member
    Added dropping libatomic from symbol-check.py.
  21. fanquake commented at 12:51 pm on September 10, 2025: member

    Guix Build:

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