x86_64-netbsd-none

[lun-4]

• LLVM13's clang fails to build on NetBSD 9.0.
• The error was pinned down to NetBSD's libstdc++ not providing std::errc::state_not_recoverable.
  • https://github.com/llvm/llvm-project/blob/f4f9ad0f5d8e8994c677c3712dff7585bf8bd963/clang/lib/Interpreter/IncrementalParser.cpp#L56
• NetBSD 10 will have the relevant enum value.
• However, NetBSD 9 will still be supported for a long time, which means a patch to LLVM.

[alarixnia]

In my opinion, LLVM is using the wrong error code here.

POSIX sez "ENOTRECOVERABLE - State not recoverable. The state protected by a robust mutex is not recoverable."

The LLVM code in question is completely unrelated to mutexes.

If I had to use an errno code here, I'd use ENOTSUP (std::errc::not_supported).

[0-wiz-0]

I had already filed a bug report about this upstream - please provide your suggestion there. That'll also show that more than one person is interested in this :) Thanks.
https://bugs.llvm.org/show_bug.cgi?id=52587

[lun-4]

Making sure we can reference the correct upstream issue after LLVM's Bugzilla migration: llvm/llvm-project#51929

[alexrp]

Is this still a problem?

[lun-4]

got around to upgrading my development VM to netbsd10, and llvm-host now builds without issue! (netbsd9 is still supported by netbsd but I think we can leave that out of the zig support tier matrix..) problem now is that build-zig-host's process segfaults. will have to investigate further later, but here's the stack from lldb

Process 15831 launched: '/home/luna/zig-bootstrap/out/build-zig-host/zig2' (x86_64)
Process 15831 stopped
* thread #1, stop reason = signal SIGSEGV: address not mapped to object (fault address: 0x7f7fff10eff8)
    frame #0: 0x000000000082ae80 zig2`InternPool_Local_List_28InternPool_Item_29_view__17671 + 50
zig2`InternPool_Local_List_28InternPool_Item_29_view__17671:
->  0x82ae80 <+50>: callq  0xc1d2bd                  ; InternPool_Local_List_28InternPool_Item_29_header__17670
    0x82ae85 <+55>: movq   %rax, -0x10(%rbp)
    0x82ae89 <+59>: movq   -0x10(%rbp), %rax
    0x82ae8d <+63>: movq   %rax, -0x18(%rbp)

[alexrp]

After ziglang/zig#23913, the current blocker is libc++ failing to build:

-- Check for working CXX compiler: /home/alexrp/Source/ziglang/zig-bootstrap/out/host/bin/zig - broken
CMake Error at /usr/share/cmake-3.31/Modules/CMakeTestCXXCompiler.cmake:73 (message):
  The C++ compiler

    "/home/alexrp/Source/ziglang/zig-bootstrap/out/host/bin/zig"

  is not able to compile a simple test program.

  It fails with the following output:

    Change Dir: '/home/alexrp/Source/ziglang/zig-bootstrap/out/build-llvm-x86_64-netbsd.10.1-none-baseline/CMakeFiles/CMakeScratch/TryCompile-QRZq1n'

    Run Build Command(s): /usr/bin/ninja -v cmTC_487be
    [1/2] /home/alexrp/Source/ziglang/zig-bootstrap/out/host/bin/zig c++ -fno-sanitize=all -s -target x86_64-netbsd.10.1-none -mcpu=baseline    -MD -MT CMakeFiles/cmTC_487be.dir/testCXXCompiler.cxx.o -MF CMakeFiles/cmTC_487be.dir/testCXXCompiler.cxx.o.d -o CMakeFiles/cmTC_487be.dir/testCXXCompiler.cxx.o -c /home/alexrp/Source/ziglang/zig-bootstrap/out/build-llvm-x86_64-netbsd.10.1-none-baseline/CMakeFiles/CMakeScratch/TryCompile-QRZq1n/testCXXCompiler.cxx
    [2/2] : && /home/alexrp/Source/ziglang/zig-bootstrap/out/host/bin/zig c++ -fno-sanitize=all -s -target x86_64-netbsd.10.1-none -mcpu=baseline   CMakeFiles/cmTC_487be.dir/testCXXCompiler.cxx.o -o cmTC_487be   && :
    FAILED: cmTC_487be
    : && /home/alexrp/Source/ziglang/zig-bootstrap/out/host/bin/zig c++ -fno-sanitize=all -s -target x86_64-netbsd.10.1-none -mcpu=baseline   CMakeFiles/cmTC_487be.dir/testCXXCompiler.cxx.o -o cmTC_487be   && :
    In file included from /home/alexrp/Source/ziglang/zig-bootstrap/out/host/lib/zig/libcxx/src/iostream.cpp:9:
    In file included from /home/alexrp/Source/ziglang/zig-bootstrap/out/host/lib/zig/libcxx/src/std_stream.h:14:
    In file included from /home/alexrp/Source/ziglang/zig-bootstrap/out/host/lib/zig/libcxx/include/__locale:14:
    In file included from /home/alexrp/Source/ziglang/zig-bootstrap/out/host/lib/zig/libcxx/include/__locale_dir/locale_base_api.h:138:
    /home/alexrp/Source/ziglang/zig-bootstrap/out/host/lib/zig/libcxx/include/__locale_dir/locale_base_api/bsd_locale_fallbacks.h:32:72: error: no member named 'uselocale' in the global namespace
       32 |   _LIBCPP_HIDE_FROM_ABI __locale_guard(locale_t& __loc) : __old_loc_(::uselocale(__loc)) {}
          |                                                                      ~~^
    /home/alexrp/Source/ziglang/zig-bootstrap/out/host/lib/zig/libcxx/include/__locale_dir/locale_base_api/bsd_locale_fallbacks.h:36:9: error: no type named 'uselocale' in the global namespace
       36 |       ::uselocale(__old_loc_);
          |       ~~^