Hi, I need to prevent functions from using stack based params if the number of parameters exceeds 6 on x86_64. Is there a different calling convention I can force gcc to use? Basically I need one that doesn't depend on a particular order on the stack. Here is what I want in pseudo code: cdecl stack: <param1> <param0> <ret> <- stack ptr called function knows that the next value after the ret value is the first param. I need something where gcc automatically hands over a pointer like this: <param1> <param0> <- stack ptr (...) different stack: <ret> called function gets stack ptr from gcc and 'knows' where to look for the rest of the params Is that or something similar possible with gcc? Can I at least have gcc fail if a function can not be used with the regparm model? Thanks, -Bernhard
