[cffi-devel] Struct alignment/size bug fixed, win32 tweaks, etc..

[Luis Oliveira]

Hello,

About the struct alignment issue, I found some docs here:
http://refspecs.freestandards.org/ and fixed the bug following the 
instructions in "System V Application Binary Interface Intel386 
Architecture Processor Supplment, Fourth Edition". According to the 
other ABI docs under "Processor Specific ELF documents" the same rules 
apply at least for x86-64, MIPS and PowerPC.

These documents mention System V, so I suppose it could be different 
for other systems. I have tested this under Win32 and MacOS X (as well 
as Linux) and they seem to use the same rules.

So anyway, these are the new changes in cffi-luis:

Fri Sep  2 08:57:50 WEST 2005  Luis Oliveira <loliveira at common-lisp.net>
   * CFFI User Manual update.

Fri Sep  2 05:40:50 WEST 2005  Luis Oliveira <loliveira at common-lisp.net>
   * Fix struct bug, defcvar bug and tweaked bindings.lisp

   - defcvar now works (more) correctly with aggregate types.
   - struct types now carry alignment information which is now
     correctly calculated (for unions too) according to the x86
     ABI (tested on darwin/ppc too, but should study other ABI
     docs at some point).
   - also tail padding is now correctly added to structs, when
     necessary. (also according to the x86 ABI).
   - 4 new tests for this struct bug (reported by Wilco Greven).
   - tweaked tests/bindings.lisp to correctly load the library on
     Lispworks and to make it more portable across win/nix/etc..

Thu Sep  1 08:36:04 WEST 2005  Luis Oliveira <loliveira at common-lisp.net>
   * Slight change to defcenum to make Corman Lisp happier.

Wed Aug 31 07:46:45 WEST 2005  Luis Oliveira <loliveira at common-lisp.net>
   * Well, lets support MINGW too.
   Tweaked the Makefile a bit to support MINGW too.

Wed Aug 31 07:30:13 WEST 2005  Luis Oliveira <loliveira at common-lisp.net>
   * Win32 tweaks to the test library...

   ... in order to work with the MSVC++ free toolkit.

   - correctly load the test library.
   - and __declspec(dllexport) to the test library functions
   - implement a strdup, used in 2 tests
   - added a compile.bat, the free toolkit doesn't seem to have
     nmake. Also, I don't know how to make ASDF automatically
     compile the lib under win32 like I did for *nix.

-- 
Luís Oliveira
http://student.dei.uc.pt/~lmoliv/
Equipa Portuguesa do Translation Project
http://www2.iro.umontreal.ca/~pinard/po/registry.cgi?team=pt