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AMD64 ABI compatibility
- From: Nicolas Alt <nalt at apple dot com>
- To: gcc at gcc dot gnu dot org
- Date: Mon, 9 Jul 2007 12:48:10 -0700
- Subject: AMD64 ABI compatibility
On the AMD64 / x86-64Bit architecture, some arguments of a functions
are passed using registers, but there seem to be two different
conventions out there. The standard ABI uses 6 registers, but
Microsoft compilers use only 4. Because of that, code compiled with
gcc cannot call code compiled with a MS compiler without an ugly
Have there been any efforts to make gcc do function calls the MS way?
I guess this would be an important feature for mingw on AMD64.