Date: Mon, 28 Jul 2025 09:34:49 +0700 From: cyric@mm.st To: freebsd-current@freebsd.org Subject: Re: LLVM broken on main (arm64)? Message-ID: <8bfd193f-4279-4ad3-a25b-fffda11cc5b4@mm.st> In-Reply-To: <aIYOnFLkskxEgifl@freefall.freebsd.org> References: <aIYDGj8gmnRu_mdN@mail.bsd4all.net> <BDE5739A-EE34-4A49-8E88-AB606A0DDE5E@FreeBSD.org> <aIYOnFLkskxEgifl@freefall.freebsd.org>
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Lexi Winter wrote: > Dimitry Andric: >> On 27 Jul 2025, at 12:44, Herbert J. Skuhra <herbert@gojira.at> wrote: >>> >>> after updating from main-n279078-1f2c178e5688 to >>> main-n279105-9b3055d0d4bc (arm64) I have the following issue: >>> >>> $ cc >>> PLEASE submit a bug report to https://bugs.freebsd.org/submit/ and include the crash backtrace, preprocessed source, and associated run script. >>> Stack dump: >>> 0. Program arguments: cc >>> 1. Compilation construction >>> Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it): >>> 0 libprivatellvm.so.19 0x00000edc041485ec llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 72 >>> 1 libprivatellvm.so.19 0x00000edc041464ec llvm::sys::RunSignalHandlers() + 128 >>> 2 libprivatellvm.so.19 0x00000edc04148d48 llvm::support::detail::provider_format_adapter<int>::format(llvm::raw_ostream&, llvm::StringRef) + 412 >>> 3 libthr.so.3 0x00000edc06bafc38 _pthread_sigmask + 1320 >>> Segmentation fault >> >> That's a very short trace, with no useful information. Maybe installworld was half-finished? > > i am seeing something similar on amd64 after updating past 9b3055d0d4bc: > > 1& 1? 172!freebsd15 ~/src/bsd/dev [lf/dev/pkgbase-toolchain]% cc > > PLEASE submit a bug report to https://bugs.freebsd.org/submit/ and include the crash backtrace, preprocessed source, and associated run script. > Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it): > 0 libprivatellvm.so.19 0x00001ca34ed8f2c9 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 57 > 1 libprivatellvm.so.19 0x00001ca34ed8d185 llvm::sys::RunSignalHandlers() + 85 > 2 libprivatellvm.so.19 0x00001ca34ed8f9d7 llvm::support::detail::provider_format_adapter<int>::format(llvm::raw_ostream&, llvm::StringRef) + 375 > 3 libthr.so.3 0x00001ca352fc88ec _pthread_sigmask + 1340 > 4 libthr.so.3 0x00001ca352fc7ebb pthread_signals_unblock_np + 1467 > 5 libthr.so.3 0x00001ca34449d2d3 pthread_signals_unblock_np + 18446744073462962643 > 6 libprivatellvm.so.19 0x00001ca34d5b28be llvm::cl::opt<int, false, llvm::cl::parser<int>>::~opt() + 62 > 7 libc.so.7 0x00001ca35434131f __cxa_finalize + 351 > [2] 5802 bus error (core dumped) cc > > i'm using pkgbase so unlikely to be a partial install. could it be that > this change requires a clean build? And it looks like this for me, amd64, WITHOUT_CLEAN build (default): $ cc --version FreeBSD clang version 19.1.7 (https://github.com/llvm/llvm-project.git llvmorg-19.1.7-0-gcd708029e0b2) Target: x86_64-unknown-freebsd15.0 Thread model: posix InstalledDir: /usr/bin Build config: +assertions zsh: abort (core dumped) cc --version (gdb) bt #0 kill () at kill.S:4 #1 0x0000062f57af2540 in __fail (msg=0x62f579f5aa5 "stack overflow detected; terminated") at /usr/src/lib/libc/secure/libc_stack_protector.c:119 #2 0x0000062f57af24b0 in __stack_chk_fail () at /usr/src/lib/libc/secure/libc_stack_protector.c:126 #3 0x0000062f49fcebb6 in BuildCompilation () at /data/obj/usr/src/amd64.amd64/tmp/usr/include/c++/v1/string:2330 #4 0x000006272564d3e4 in clang_main () at /usr/src/contrib/llvm-project/clang/tools/driver/driver.cpp:361 #5 0x000006272564bc22 in main () at /usr/src/usr.bin/clang/clang/clang-driver.cpp:17home | help
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