On 18 Aug 2013, at 18:25, Adam Fedor <fe...@gnu.org> wrote: > I finally had some time to work on this and have got (perhaps) a little > farther (I compiled with clang, although I get similar errors with gcc). I > still these errors: > > h:/Source/nsis/sources/gstep-current/svn-libobjc2/block_trampolines.S:113: > Error: junk at end of line, first unrecognized character is `-' > > Which I can solve by deleting these lines in block_trampolines.S and > objc_msgSend.S: > > Index: block_trampolines.S > =================================================================== > --- block_trampolines.S (revision 36982) > +++ block_trampolines.S (working copy) > @@ -110,5 +110,4 @@ > CDECL(__objc_block_trampoline_end_sret): > #endif > #if HAS_SECTION_DIRECTIVE > -.section .note.GNU-stack,"",%progbits > #endif > > Which didn't seem to cause any side effects, but then I ran into the errors > Jerry had below. Based on some googling, I tried to fix the this error by > removing "-fPIC" and defining "-DDLL_EXPORT", but that didn't seem to help. > Finally I just removed this line (sorry, I don't know any assembly):
The correct fix is probably to ensure that HAS_SECTION_DIRECTIVE is not defined on win32 (or just change it to #ifdef __ELF__, since I think that is only needed on ELF platforms). > Index: objc_msgSend.x86-32.S > =================================================================== > --- objc_msgSend.x86-32.S (revision 36982) > +++ objc_msgSend.x86-32.S (working copy) > @@ -80,7 +80,6 @@ > 7: > popl %ebx; > 8: > - addl $_GLOBAL_OFFSET_TABLE_+(8b-7b), %ebx > leal SmallObjectClasses@GOTOFF(%ebx), %eax > mov (%eax), %eax > popl %ebx > > and the file compiled, but I got an error message later when linking (which > appears related): > > CMakeFiles/objc.dir/objc_msgSend.S.obj:fake:(.text+0x72): undefined reference > to `slowMsgLookup@PLT' > CMakeFiles/objc.dir/objc_msgSend.S.obj:fake:(.text+0x84): undefined reference > to `SmallObjectClasses@GOTOFF' > CMakeFiles/objc.dir/objc_msgSend.S.obj:fake:(.text+0x101): undefined > reference to `slowMsgLookup@PLT' > CMakeFiles/objc.dir/objc_msgSend.S.obj:fake:(.text+0x113): undefined > reference to `SmallObjectClasses@GOTOFF' > CMakeFiles/objc.dir/objc_msgSend.S.obj:fake:(.text+0x190): undefined > reference to `slowMsgLookup@PLT' > CMakeFiles/objc.dir/objc_msgSend.S.obj:fake:(.text+0x1a2): undefined > reference to `SmallObjectClasses@GOTOFF' > > I'm still trying to find something that works for that. Also, FYI asprintf > and mkstemp are not defined on MingW, but it's trivial to add a definition > for those (patch attached, although probably in the wrong place). I believe that for win32, you should be able to replace this entire sequence with a direct reference to SmallObjectClasses, as DLLs on Win32 are not position-independent code (the sequence from the call 7f to the leal are just finding the address of SmallObjectClasses). I believe that Mathieu had some patches to fix the memory allocation in block_to_imp.c correctly. David > > Adam > <mingw.patch> > > > > On Jul 10, 2013, at 7:48 AM, Jerry White <je...@white.gets-it.net> wrote: > >> David, this is Jerry White again. I am writing you from my personal email >> because I am having to do this testing away from the office. >> >> I deleted my previous download of libobjc2 and obtained the trunk, as you >> suggested. The compilation appears to get a little further now in that we >> get past block_trampolines.S. Now we appear to get stuck on objc_msgSend.S >> (as you guessed would happen). I am including the pertinent output below. >> >> Assembling block_trampolines.S... >> Assembling objc_msgSend.S... >> c:/gnustep/bin/../lib/gcc/mingw32/4.6.1/../../../../mingw32/bin/as.exe: BFD >> (GNU Binutils) 2.21.53.2 >> 0110804 assertion fail ../../binutils-2.21.53/bfd/coff-i386.c:584 >> ./objc_msgSend.x86-32.S: Assembler messages: >> ./objc_msgSend.x86-32.S:98: Error: cannot represent relocation type >> BFD_RELOC_386_GOTPC >> c:/gnustep/bin/../lib/gcc/mingw32/4.6.1/../../../../mingw32/bin/as.exe: BFD >> (GNU Binutils) 2.21.53.2 >> 0110804 assertion fail ../../binutils-2.21.53/bfd/coff-i386.c:584 >> ./objc_msgSend.x86-32.S:102: Error: cannot represent relocation type >> BFD_RELOC_386_GOTPC >> c:/gnustep/bin/../lib/gcc/mingw32/4.6.1/../../../../mingw32/bin/as.exe: BFD >> (GNU Binutils) 2.21.53.2 >> 0110804 assertion fail ../../binutils-2.21.53/bfd/coff-i386.c:584 >> ./objc_msgSend.x86-32.S:106: Error: cannot represent relocation type >> BFD_RELOC_386_GOTPC >> clang.exe: error: assembler (via gcc) command failed with exit code 1 (use >> -v to see invocation) >> make: *** [objc_msgSend.o] Error 1 > > _______________________________________________ > Gnustep-dev mailing list > Gnustep-dev@gnu.org > https://lists.gnu.org/mailman/listinfo/gnustep-dev _______________________________________________ Gnustep-dev mailing list Gnustep-dev@gnu.org https://lists.gnu.org/mailman/listinfo/gnustep-dev
