Hello Darwin port maintainers, I'm getting the frontend for the Go programming language to work in Darwin. I encountered what looks like a bug in Darwin-specific gcc code.
The Go frontend saves language-specific export information in the object file inside a special section. This works fine in Linux/ELF. In Darwin/Mach-O, the following assembly is generated for the section header (.go_export is the segment name): .section .go_export The Darwin assembler installed on my Mac (cctools-773~33, GNU assembler version 1.38) however doesn't like this statement. It produces this error message when fed the aforementioned assembly: Expected comma after segment-name If I modify darwin_asm_named_section() in gcc/config/darwin.c: - fprintf (asm_out_file, "\t.section %s\n", name); +fprintf (asm_out_file, "\t.section %s,\n", name); The following assembly is produced by gcc and accepted by the assembler: .section .go_export, Apple's documentation confirms a comma is required for .section: http://developer.apple.com/mac/library/documentation/DeveloperTools/Reference/Assembler/040-Assembler_Directives/asm_directives.html Can you please explain either why darwin_asm_named_section() is correct as written or can you apply this fix? Thank you. If you're interested in observing the issue yourself, the Go branch is located in the main gcc source repository in this subdirectory: /branches/gccgo Here is a sample Go program that, when compiled with gccgo, will exhibit the issue: package main func Main() {} I use the following configure arguments: --disable-bootstrap --enable-languages=go Eric
