Re: LLVM broken on main (arm64)?

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?