Compiling in M2 throws lots of warnings

[pherrymason]

Compiling in M2 a simple hello world prints lots of warnings:

hello_world.c3

module hello_world;
import std::io;

fn int main(String[] argv) {
    io::printn("Hello world!");
    return 0;
}

Executing: c3c compile hello_world.c3.
Outputs:

warning: (arm64)  could not find object file symbol for symbol _std.io.File.seek
warning: (arm64)  could not find object file symbol for symbol _std.io.File.close
warning: (arm64)  could not find object file symbol for symbol _std.io.File.read
warning: (arm64)  could not find object file symbol for symbol _std.io.File.write
warning: (arm64)  could not find object file symbol for symbol _std.io.File.read_byte
warning: (arm64)  could not find object file symbol for symbol _.static_initialize.0
warning: (arm64)  failed to insert symbol '_.panic_msg' in the debug map.
warning: (arm64)  failed to insert symbol '_.file' in the debug map.
warning: (arm64)  failed to insert symbol '_.func' in the debug map.
warning: (arm64)  could not find object file symbol for symbol _.panic_msg.1
warning: (arm64)  could not find object file symbol for symbol _.func.2
warning: (arm64)  failed to insert symbol '_.fault' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.3' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.4' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.5' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.6' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.7' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.8' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.9' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.10' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.11' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.12' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.13' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.14' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.15' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.16' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.17' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.18' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.19' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.20' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.21' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.22' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.23' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.24' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.25' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.26' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.27' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.28' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.29' in the debug map.
warning: (arm64)  failed to insert symbol '_.fault.30' in the debug map.
warning: (arm64)  could not find object file symbol for symbol _.panic_msg.31
warning: (arm64)  could not find object file symbol for symbol _.func.32
warning: (arm64)  could not find object file symbol for symbol _.func.33
warning: (arm64)  could not find object file symbol for symbol _.func.34
warning: (arm64)  could not find object file symbol for symbol _.panic_msg.35
warning: (arm64)  could not find object file symbol for symbol _.func.36
warning: (arm64)  could not find object file symbol for symbol _.func.37
warning: (arm64)  could not find object file symbol for symbol _$sel.seek
warning: (arm64)  could not find object file symbol for symbol _$sel.close
warning: (arm64)  could not find object file symbol for symbol _$sel.read
warning: (arm64)  could not find object file symbol for symbol _$sel.write
warning: (arm64)  could not find object file symbol for symbol _$sel.read_byte
warning: (arm64)  could not find object file symbol for symbol _$sel.flush
warning: (arm64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.seek
warning: (arm64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.write_byte
warning: (arm64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.close
warning: (arm64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.read
warning: (arm64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.write
warning: (arm64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.read_byte
warning: (arm64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.flush
Program linked to executable 'hello_world'.

Executing c3c compile hello_world.c3 --target macos-aarch64 as suggested in discord (https://discord.com/channels/650345951868747808/927010276128202762/1178961549390516244) does the same.

[drmidnight]

I have the same exact issue for x86_64 on an Intel based Mac. It was working fine with the last release and works without any issues on my linux machine.

[lerno]

@drmidnight what version of xcode and clang? What does cc --version return? If you use --print-linking what does it show?

[crmorello]

I'm using Xcode 14.3.1 (I also have the latest installed). I'm not sure what --print-linking should be passed to, but let me know and I can grab that output. Passing to c3c compile just says Error: Cannot process the unknown option "--print-linking".. Issue with my clang mismatch? I am constantly hoping around Xcode and llvm versions for work.

c3c --version:

C3 Compiler Version (alpha):       0.5.1
Installed directory:               /Users/xxxxx/Developer/c3/macos/
LLVM version:                      16.0.6
LLVM default target:               x86_64-apple-darwin21.6.0

cc --version:

Target: x86_64-apple-darwin22.5.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

clang --version:

Homebrew clang version 14.0.6
Target: x86_64-apple-darwin22.5.0
Thread model: posix
InstalledDir: /usr/local/opt/llvm@14/bin

c3c build --print-output:

# output-files-begin
build/tmp/ray_test.o
build/tmp/rl.o
build/tmp/std.atomic.o
build/tmp/libc.o
build/tmp/std.core.string.conv.o
build/tmp/std.core.string.o
build/tmp/std.core.builtin.o
build/tmp/std.core.mem.o
build/tmp/std.core.dstring.o
build/tmp/std.core.mem.allocator.o
build/tmp/std.core.types.o
build/tmp/std.io.o
build/tmp/std.io.file.o
build/tmp/std.io.os.o
build/tmp/std.math.o
build/tmp/std.ascii.o
build/tmp/std.os.posix.o
build/tmp/std.os.darwin.o
build/tmp/std.os.backtrace.o
build/tmp/std.os.process.o
build/tmp/std.os.env.o
build/tmp/std.collections.list.std.os.backtrace.Backtrace.o
# output-files-end
warning: (x86_64)  could not find object file symbol for symbol _std.io.File.seek
warning: (x86_64)  could not find object file symbol for symbol _std.io.File.close
warning: (x86_64)  could not find object file symbol for symbol _std.io.File.read
warning: (x86_64)  could not find object file symbol for symbol _std.io.File.write
warning: (x86_64)  could not find object file symbol for symbol _std.io.File.read_byte
warning: (x86_64)  could not find object file symbol for symbol _.static_initialize.0
warning: (x86_64)  failed to insert symbol '_.panic_msg' in the debug map.
warning: (x86_64)  failed to insert symbol '_.file' in the debug map.
warning: (x86_64)  failed to insert symbol '_.func' in the debug map.
warning: (x86_64)  could not find object file symbol for symbol _.panic_msg.1
warning: (x86_64)  could not find object file symbol for symbol _.func.2
warning: (x86_64)  failed to insert symbol '_.fault' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.3' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.4' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.5' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.6' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.7' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.8' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.9' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.10' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.11' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.12' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.13' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.14' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.15' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.16' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.17' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.18' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.19' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.20' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.21' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.22' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.23' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.24' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.25' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.26' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.27' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.28' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.29' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.30' in the debug map.
warning: (x86_64)  could not find object file symbol for symbol _.panic_msg.31
warning: (x86_64)  could not find object file symbol for symbol _.func.32
warning: (x86_64)  could not find object file symbol for symbol _.func.33
warning: (x86_64)  could not find object file symbol for symbol _.func.34
warning: (x86_64)  could not find object file symbol for symbol _.panic_msg.35
warning: (x86_64)  could not find object file symbol for symbol _.func.36
warning: (x86_64)  could not find object file symbol for symbol _.func.37
warning: (x86_64)  could not find object file symbol for symbol _$sel.seek
warning: (x86_64)  could not find object file symbol for symbol _$sel.close
warning: (x86_64)  could not find object file symbol for symbol _$sel.read
warning: (x86_64)  could not find object file symbol for symbol _$sel.read_byte
warning: (x86_64)  could not find object file symbol for symbol _$sel.flush
warning: (x86_64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.seek
warning: (x86_64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.write_byte
warning: (x86_64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.close
warning: (x86_64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.read
warning: (x86_64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.write
warning: (x86_64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.read_byte
warning: (x86_64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.flush
Program linked to executable 'ray_test'.

otool -L hello:

/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 150.0.0, current version 1971.0.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1319.100.3)

[lerno]

@crmorello @pherrymason Is this working now?

[drmidnight]

Still having the same output. It compiles and runs fine, just lots of warnings. I'm on an Intel mac and this doesn't happen on my Linux machine.

warning: (x86_64)  could not find object file symbol for symbol _std.io.File.seek
warning: (x86_64)  could not find object file symbol for symbol _std.io.File.close
warning: (x86_64)  could not find object file symbol for symbol _std.io.File.read
warning: (x86_64)  could not find object file symbol for symbol _std.io.File.write
warning: (x86_64)  could not find object file symbol for symbol _std.io.File.read_byte
warning: (x86_64)  could not find object file symbol for symbol _.static_initialize.0
warning: (x86_64)  failed to insert symbol '_.panic_msg' in the debug map.
warning: (x86_64)  failed to insert symbol '_.file' in the debug map.
warning: (x86_64)  failed to insert symbol '_.func' in the debug map.
warning: (x86_64)  could not find object file symbol for symbol _.panic_msg.1
warning: (x86_64)  could not find object file symbol for symbol _.func.2
warning: (x86_64)  failed to insert symbol '_.fault' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.3' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.4' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.5' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.6' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.7' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.8' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.9' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.10' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.11' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.12' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.13' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.14' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.15' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.16' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.17' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.18' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.19' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.20' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.21' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.22' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.23' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.24' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.25' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.26' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.27' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.28' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.29' in the debug map.
warning: (x86_64)  failed to insert symbol '_.fault.30' in the debug map.
warning: (x86_64)  could not find object file symbol for symbol _.panic_msg.31
warning: (x86_64)  could not find object file symbol for symbol _.func.32
warning: (x86_64)  could not find object file symbol for symbol _.func.33
warning: (x86_64)  could not find object file symbol for symbol _.func.34
warning: (x86_64)  could not find object file symbol for symbol _.panic_msg.35
warning: (x86_64)  could not find object file symbol for symbol _.func.36
warning: (x86_64)  could not find object file symbol for symbol _.func.37
warning: (x86_64)  could not find object file symbol for symbol _$sel.seek
warning: (x86_64)  could not find object file symbol for symbol _$sel.close
warning: (x86_64)  could not find object file symbol for symbol _$sel.read
warning: (x86_64)  could not find object file symbol for symbol _$sel.read_byte
warning: (x86_64)  could not find object file symbol for symbol _$sel.flush
warning: (x86_64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.seek
warning: (x86_64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.write_byte
warning: (x86_64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.close
warning: (x86_64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.read
warning: (x86_64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.write
warning: (x86_64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.read_byte
warning: (x86_64)  could not find object file symbol for symbol _$ct.dyn.std.io.File.flush
Program linked to executable 'hello'.

[lerno]

If you use the built-in linker, using --system-linker=no, does it still happen?

[drmidnight]

Compiling with --system-linker=no causes no more warnings.

[lerno]

Do you get a .dsym file with --system-linker=no?

[drmidnight]

No .dsym is generated.

[lerno]

What does dsymutil --version return?

[drmidnight]

Homebrew LLVM version 17.0.6
  Optimized build.

My LLVM version changes often due to work, but I've had it at 17 for awhile.

[lerno]

That's exactly my version as well. What version of MacOS?

[lerno]

Is there anything else special you can think about? Are you running a project or just compiling from the command line (eg c3c compile foo.c3) if it's the project does compiling a single file work?

[drmidnight]

MacOS 13.4.1 (22F82)
Nothing special, it's just a simple hello world and I compile a single file.
Again it works, it just dumps that symbol output.

[lerno]

It works, but it probably doesn't give the symbols or? And you were on x86_64 I believe. I am on MacOS 14, and I can't reproduce it :(

[lerno]

What version were you on @drmidnight ? c3c 0.5.3?

[drmidnight]

C3 Compiler Version (alpha):       0.5.3
Installed directory:               /Users/xxx/Developer/c3/macos/
LLVM version:                      16.0.6
LLVM default target:               x86_64-apple-darwin21.6.0

I assume this is the issue since it is using llvm 16 but linking is trying to use llvm 17?

[lerno]

The only difference is the OS version that I can see.

[drmidnight]

I will try it again when I finally update to 14. Thanks for taking the time to look into it.

[lerno]

Let me know what you find out.

[drmidnight]

All good now that I'm on macOS 14.

[lerno]

Maybe we should just note this somewhere since it's a problem with dsym which only affects debug builds on 13, and leave it unfixed? It's hard to debug for me.

[drmidnight]

That sounds like a good idea. While it was annoying, it didn't really impact anything for me.

[lerno]

I added a note to the readme.