undefined symbol: fcntl@GLIBC_2.2.5 when compile for armv7

[Dirreke]

Zig Version

0.9.1

Steps to Reproduce and Observed Behavior

Sorry, I'm new to zig. If I'm wrong, please let me know. I'm trying use zig cc to compile rocksdb (actually I compile rust-rocksdb ) for armv7-linux-gnueabihf. zig 0.10.1 can not compile for armv7 with multiple thread, and according to #6573 , 0.9.1 can do it. So I use zig 0.9.1, and I get this when linking. It really confused me

  = note: ld.lld: error: undefined symbol: fcntl@GLIBC_2.2.5
          >>> referenced by fs_posix.cc:157 (rocksdb/env/fs_posix.cc:157)
          >>>               fs_posix.o:(rocksdb::(anonymous namespace)::PosixFileSystem::NewSequentialFile(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, rocksdb::FileOptions const&, std::__1::unique_ptr<rocksdb::FSSequentialFile, std::__1::default_delete<rocksdb::FSSequentialFile> >*, rocksdb::IODebugContext*)) in archive .../armv7-unknown-linux-gnueabihf/debug/deps/liblibrocksdb_sys-6aa47adaadf43187.rlib
          >>> referenced by fs_posix.cc:157 (rocksdb/env/fs_posix.cc:157)
          >>>               fs_posix.o:(rocksdb::(anonymous namespace)::PosixFileSystem::NewSequentialFile(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, rocksdb::FileOptions const&, std::__1::unique_ptr<rocksdb::FSSequentialFile, std::__1::default_delete<rocksdb::FSSequentialFile> >*, rocksdb::IODebugContext*)) in archive .../armv7-unknown-linux-gnueabihf/debug/deps/liblibrocksdb_sys-6aa47adaadf43187.rlib
          >>> referenced by fs_posix.cc:157 (rocksdb/env/fs_posix.cc:157)
          >>>               fs_posix.o:(rocksdb::(anonymous namespace)::PosixFileSystem::NewRandomAccessFile(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, rocksdb::FileOptions const&, std::__1::unique_ptr<rocksdb::FSRandomAccessFile, std::__1::default_delete<rocksdb::FSRandomAccessFile> >*, rocksdb::IODebugContext*)) in archive .../armv7-unknown-linux-gnueabihf/debug/deps/liblibrocksdb_sys-6aa47adaadf43187.rlib
          >>> referenced 12 more times
          >>> did you mean: fcntl
          >>> defined in: ~/.cache/zig/o/f9d9fcf846b561cef901d9b46b123fcc/libpthread.so.0

Does it mean that I can't compile it for arm anyway? Or Is there something special flags I need to pass in?

Expected Behavior

//

[Kuratius]

armv7-linux-gnueabihf

Are you sure this is the correct target? Zig uses arm-linux for this I think.

[Dirreke]

yeah, I use cargo-zigbuild to call zig, and it can set target to arm-linux correctly

[squeek502]

Possibly related: https://github.com/ziglang/zig/issues/5882, https://github.com/ziglang/zig/issues/9485

[Dirreke]

yeah, I noticed it too. However, even if I set target to arm-linux-gnueabihf.2.24, it's compiled failed either

[Dirreke]

I do some investigating. I found that ~/.cache/zig/o/.../c.o has fcntl@GLIBC_2.4 but not fcntl@GLIBC_2.2.5. I don't know why