ld.lld crash in MacOS builds

[jlsantiago0]

I submitted a ticket in the llvm-project:

llvm/llvm-project#187318

NOTE: The linux toolchain does not have this issue.

PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace and instructions to reproduce the bug.
Stack dump:
0.      Program arguments: /mnt/jlsws5/dev/orthrus/master/build/osx15-win64/cross/mingw-w64-win64/bin/ld.lld -m i386pep --shared -Bdynamic -e DllMainCRTStartup --enable-auto-image-base -o libavutil/avutil-60.dll /mnt/jlsws5/dev/orthrus/master/build/osx15-win64/cross/mingw-w64-win64/x86_64-w64-mingw32/lib/dllcrt2.o /mnt/jlsws5/dev/orthrus/master/build/osx15-win64/cross/mingw-w64-win64/x86_64-w64-mingw32/lib/crtbegin.o -Llibavcodec -Llibavdevice -Llibavfilter -Llibavformat -Llibavutil -Llibswscale -Llibswresample -L/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/stage/dav1d/lib -L/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/stage/zlib/lib -L/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/stage/bzip2/lib -L/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/stage/lzma/lib -L/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/stage/openssl/lib -L/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/stage/sdl2/lib -L/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/stage/dav1d/lib -L/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/stage/zlib/lib -L/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/stage/bzip2/lib -L/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/stage/lzma/lib -L/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/stage/openssl/lib -L/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/stage/sdl2/lib -L/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/cross/mingw-w64-win64/x86_64-w64-mingw32/lib -L/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/cross/mingw-w64-win64/x86_64-w64-mingw32/mingw/lib -L/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/cross/mingw-w64-win64/lib/clang/22/lib/windows --out-implib libavutil/libavutil.dll.a --disable-auto-image-base libavutil/avutil-60.def --image-base 0x180000000 --nxcompat --dynamicbase --high-entropy-va --as-needed --export-all-symbols --enable-runtime-pseudo-reloc -no-undefined --as-needed libavutil/adler32.o libavutil/aes.o libavutil/aes_ctr.o libavutil/ambient_viewing_environment.o libavutil/audio_fifo.o libavutil/avsscanf.o libavutil/avstring.o libavutil/base64.o libavutil/blowfish.o libavutil/bprint.o libavutil/buffer.o libavutil/camellia.o libavutil/cast5.o libavutil/channel_layout.o libavutil/container_fifo.o libavutil/cpu.o libavutil/crc.o libavutil/csp.o libavutil/des.o libavutil/detection_bbox.o libavutil/dict.o libavutil/display.o libavutil/dovi_meta.o libavutil/downmix_info.o libavutil/encryption_info.o libavutil/error.o libavutil/eval.o libavutil/executor.o libavutil/fifo.o libavutil/file.o libavutil/file_open.o libavutil/film_grain_params.o libavutil/fixed_dsp.o libavutil/float_dsp.o libavutil/float_scalarproduct.o libavutil/frame.o libavutil/hash.o libavutil/hdr_dynamic_metadata.o libavutil/hdr_dynamic_vivid_metadata.o libavutil/hmac.o libavutil/hwcontext.o libavutil/hwcontext_amf.o libavutil/hwcontext_cuda.o libavutil/hwcontext_d3d11va.o libavutil/hwcontext_d3d12va.o libavutil/hwcontext_dxva2.o libavutil/hwcontext_stub.o libavutil/iamf.o libavutil/imgutils.o libavutil/integer.o libavutil/intmath.o libavutil/lfg.o libavutil/lls.o libavutil/log.o libavutil/log2_tab.o libavutil/lzo.o libavutil/mastering_display_metadata.o libavutil/mathematics.o libavutil/md5.o libavutil/mem.o libavutil/murmur3.o libavutil/opt.o libavutil/parseutils.o libavutil/pixdesc.o libavutil/pixelutils.o libavutil/random_seed.o libavutil/rational.o libavutil/rc4.o libavutil/refstruct.o libavutil/reverse.o libavutil/ripemd.o libavutil/samplefmt.o libavutil/sha.o libavutil/sha512.o libavutil/side_data.o libavutil/slicethread.o libavutil/spherical.o libavutil/stereo3d.o libavutil/tdrdi.o libavutil/tea.o libavutil/threadmessage.o libavutil/time.o libavutil/timecode.o libavutil/timecode_internal.o libavutil/timestamp.o libavutil/tree.o libavutil/twofish.o libavutil/tx.o libavutil/tx_double.o libavutil/tx_float.o libavutil/tx_int32.o libavutil/utils.o libavutil/uuid.o libavutil/version.o libavutil/vfavutil.o libavutil/vfavutil_atomic.o libavutil/vfavutil_mem.o libavutil/video_enc_params.o libavutil/video_hint.o libavutil/x86/aes.o libavutil/x86/aes_init.o libavutil/x86/cpu.o libavutil/x86/cpuid.o libavutil/x86/crc.o libavutil/x86/fixed_dsp.o libavutil/x86/fixed_dsp_init.o libavutil/x86/float_dsp.o libavutil/x86/float_dsp_init.o libavutil/x86/imgutils.o libavutil/x86/imgutils_init.o libavutil/x86/lls.o libavutil/x86/lls_init.o libavutil/x86/pixelutils.o libavutil/x86/tx_float.o libavutil/x86/tx_float_init.o libavutil/xga_font_data.o libavutil/xtea.o libavutil/avutilres.o -lm -lz -lssl -lcrypto -luser32 -lbcrypt -ldav1d -lmingw32 /mnt/jlsws5/dev/orthrus/master/build/osx15-win64/cross/mingw-w64-win64/lib/clang/22/lib/windows/libclang_rt.builtins-x86_64.a -lunwind -lmoldname -lmingwex -lmsvcrt -ladvapi32 -lshell32 -luser32 -lkernel32 -lmingw32 /mnt/jlsws5/dev/orthrus/master/build/osx15-win64/cross/mingw-w64-win64/lib/clang/22/lib/windows/libclang_rt.builtins-x86_64.a -lunwind -lmoldname -lmingwex -lmsvcrt -lkernel32 /mnt/jlsws5/dev/orthrus/master/build/osx15-win64/cross/mingw-w64-win64/x86_64-w64-mingw32/lib/crtend.o --reproduce=repro25.tar
 #0 0x000000010c5d9508 (/System/Volumes/Data/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/cross/mingw-w64-win64/lib/libLLVM.dylib+0x154b508)
 #1 0x000000010c5d7893 (/System/Volumes/Data/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/cross/mingw-w64-win64/lib/libLLVM.dylib+0x1549893)
 #2 0x000000010c5d9a9e (/System/Volumes/Data/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/cross/mingw-w64-win64/lib/libLLVM.dylib+0x154ba9e)
 #3 0x00007ff815c9031d (/usr/lib/system/libsystem_platform.dylib+0x7ff801f0c31d)
 #4 0x000010000000000c
 #5 0x00000001020ca920 (/System/Volumes/Data/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/cross/mingw-w64-win64/bin/lld+0x10002c920)
 #6 0x00000001020becc7 (/System/Volumes/Data/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/cross/mingw-w64-win64/bin/lld+0x100020cc7)
 #7 0x00000001024dd18c (/System/Volumes/Data/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/cross/mingw-w64-win64/bin/lld+0x10043f18c)
 #8 0x00000001020a2792 (/System/Volumes/Data/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/cross/mingw-w64-win64/bin/lld+0x100004792)
 #9 0x00000001020a0a5a (/System/Volumes/Data/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/cross/mingw-w64-win64/bin/lld+0x100002a5a)
#10 0x00000001020a08ec (/System/Volumes/Data/mnt/jlsws5/dev/orthrus/master/build/osx15-win64/cross/mingw-w64-win64/bin/lld+0x1000028ec)
#11 0x00007ff8158b2530

NOTE: I also tested with a few of the 21.x.x toolchains. Those crash too in the same way.

[jlsantiago0]

@mstorsjo This issue is supposedly fixed in llvm/llvm-project#190492 . But i am unable to build the MacOS toolchain. I can run it, but am unable to build it as i get an error on my M1 Mac. I probably dont have all of the required dependencies installed. If you are able to do a MacOS build of the toolchain with this patch applied in the next build here, I can test again.

[mstorsjo]

@mstorsjo This issue is supposedly fixed in llvm/llvm-project#190492 . But i am unable to build the MacOS toolchain. I can run it, but am unable to build it as i get an error on my M1 Mac.

I'd be curious to hear what that issue is; building the toolchain itself shouldn't really have many dependencies.

I probably dont have all of the required dependencies installed. If you are able to do a MacOS build of the toolchain with this patch applied in the next build here, I can test again.

Doing an one-off build with a yet-unmerged patch requires a bit of effort, but once the fix is merged it'll be available in the nightly builds at https://github.com/mstorsjo/llvm-mingw/releases/nightly.

But I tweaked the setup for github actions, to start a custom build that includes specifically this fix, now running at https://github.com/mstorsjo/llvm-mingw/actions/runs/24051321884. The output from that build pipeline should be done in 6-8 hours, and the build artifacts from it should be available for downloading for 7 days after it finishes.