Build broken when enabling fuzzing on Apple M1 hw using homebrew llvm. #24386

1. 
   john-difool commented at 9:05 am on February 19, 2022: none

   Enabling fuzzing on macos (Monterey) with Apple M1 hw (arm64) breaks the build:

   • I did the steps required to use llvm with homebrew (brew install llvm). Then passed CC & CXX env vars pointing their new respective binaries. Most fuzz tests compiled till I got to crc32c.

   ./configure –enable-fuzz –with-sanitizers=fuzzer,address,undefined CC=/opt/homebrew/opt/llvm/bin/clang CXX=/opt/homebrew/opt/llvm/bin/clang++ –disable-asm

   CXXLD test/fuzz/fuzz Undefined symbols for architecture arm64: “crc32c::ExtendArm64(unsigned int, unsigned char const*, unsigned long)”, referenced from: crc32c::Extend(unsigned int, unsigned char const*, unsigned long) in libcrc32c.a(libcrc32c_a-crc32c.o) ld: symbol(s) not found for architecture arm64 clang-13: error: linker command failed with exit code 1 (use -v to see invocation) make[2]: *** [test/fuzz/fuzz] Error 1 make[1]: *** [all-recursive] Error 1 make: *** [all-recursive] Error 1

2. john-difool added the label Feature on Feb 19, 2022
3. fanquake removed the label Feature on Feb 21, 2022
4. fanquake added the label Build system on Feb 21, 2022
5. fanquake added the label macOS on Feb 21, 2022
6. 
   fanquake commented at 1:18 pm on February 23, 2022: member

   @hebasto @jarolrod can either of you confirm this failure? I don’t currently have access to an M1 box.
7. 
   hebasto commented at 7:52 pm on February 23, 2022: member

   Tested the recent master branch (0a76bf848c72211f986a6cc5b1c13de820b861dd) on Mac mini (M1, 2020) + macOS Monterey 12.2.1 (21D62):

   0% brew info llvm | head -1
   1llvm: stable 13.0.1 (bottled), HEAD [keg-only]
   2% ./autogen.sh
   3% ./configure --enable-fuzz --with-sanitizers=fuzzer,address,undefined --enable-suppress-external-warnings CC=/opt/homebrew/opt/llvm/bin/clang CXX=/opt/homebrew/opt/llvm/bin/clang++
   4% make clean
   5% make  # no errors
   

   Also successfully compiled with:

   0% ./configure --enable-fuzz --with-sanitizers=fuzzer,address,undefined --disable-asm CC=/opt/homebrew/opt/llvm/bin/clang CXX=/opt/homebrew/opt/llvm/bin/clang++
   

8. 
   fanquake commented at 4:40 pm on March 7, 2022: member

   Going to close for now. @john-difool if this is still broken for you can you provide any more info?
9. fanquake closed this on Mar 7, 2022

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10. DrahtBot locked this on Mar 7, 2023

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john-difool fanquake hebasto

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