Debug symbols

[xsleonard]

What would it take to get debug info working? I am trying to cross compile go+cgo which relies on DWARF abbrev, info and str fields for linking go with the object files

[tpoechtrager]

Well, it would require a port of the dsymutil - but the source code of it isn't publicly available, so it can't be ported.

The only way would be to get the original OS X dsymutil binary working on Linux (would prefer to have native binaries for everything).

Maybe https://github.com/shinh/maloader would be an option.
But I am really not happy about the build dependencies of it (native libc++ and OpenCFlite to get dsymutil working).

Will give it a try, but it will take a few days (or maybe a week or two) as I am currently busy with other thing.

[xsleonard]

I may look into maloader but I agree, the dependencies are not ideal.

Regardless, this is fantastic. I've been looking to target OS X from linux for years. Thanks

[tpoechtrager]

Thanks, glad to hear that.

[xsleonard]

I am unclear on the details of this, but is dsymutil necessary for writing DWARF's .debug_abbrev to the .o files? It sounds like dsymutil operates on existing DWARF data embedded in the .o files to generate a dSYM file.

[tpoechtrager]

It must be dsymutil (not an expert about it) because that tool is the only difference.

If you get dsymutil somehow working, then don't forget to remove the -g0 (${1+"$@"} -g0 -> ${1+"$@"}) in the wrapper file (oclang/oclang), then re-run ./build.sh.

If you are using gcc, then you must remove patch -p0 < $OSXCROSS_PATCH_DIR/gcc-dsymutil.patch from build_gcc.sh, then rebuild gcc (run rm build/have_gcc* first).

[tamird]

This issue should probably be reopened, since debug info still doesn't work.

[tpoechtrager]

@tamird: Debug info works: https://github.com/tpoechtrager/osxcross/blob/master/README.DEBUGGING.md.