On Fri, Nov 9, 2012 at 5:13 AM, phi gcc <phi.gcc@xxxxxxxxx> wrote: > > I am gcc internals ignorant, I can download each gcc source code used > for a given kernel build (got the gcc version there), then try to see > if there is a config file for x86 (32bits) that would describe the > calling conv for this version of gcc, but could not find this so far > for old gcc. What would be a common place to look? I did loolk at > libffi but it doesn't help. The calling convention is implemented in gcc/config/i386/i386.c, but it's source code, not a config file. Ian