Wrong symbol names with cross compiling #10547
Description
| Bugzilla Link | 10175 |
| Resolution | DUPLICATE |
| Resolved on | Jun 23, 2011 05:51 |
| Version | trunk |
| OS | MacOS X |
| Reporter | LLVM Bugzilla Contributor |
| CC | @asl |
Extended Description
The cross compiler produces wrong export symbols if you cross compile a windows target.
/Developer/usr/bin/clang -shared -ccc-host-triple i386-pc-mingw32 -ccc-gcc-name /Developer/Cocotron/1.0/Windows/i386/gcc-4.3.1/bin/i386-pc-mingw32msvc-gcc -I/Developer/Cocotron/1.0/Windows/i386/llvm-clang-trunk/i386-pc-mingw32msvc/include exportTest.c
produces
Cannot export _Function1: symbol not found
collect2: ld returned 1 exit status
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Cotent of exportTest.c:
__declspec(dllexport) void __cdecl Function1(void)
{
}
see mailing list : http://lists.cs.uiuc.edu/pipermail/cfe-dev/2011-June/015757.html
I have a workaround for this in lib/Target/X86/X86AsmPrinter.cpp to delete the first character of the symbol wiht .substr(1) at line 624 and 637.
Line 624:
name += DLLExportedGlobals[i]->getName()
To
name += DLLExportedGlobals[i]->getName().substr(1);
AND
Line 637:
name += DLLExportedFns[i]->getName();
To
name += DLLExportedFns[i]->getName().substr(1);
This is for sure the wrong place and this is only a hack.