Re: Is there anyway to make the function get parmters from registers not stack during more than 4 parameters on arm port?

"Richard Earnshaw (lists)" <Richard.Earnshaw@xxxxxxx> · Mon, 2 Mar 2020 10:39:22 +0000

On 01/03/2020 10:31, tugouxp wrote:
HI guys:
     i have a function with prototype more than 4 parameters  which invoke form syscall.

   int foobar(int a, int b, int c, int d, int e, int f)
on arm port, a,b, c, d could get from r0-r3 according arm AACPS ABI,
but e, and f would get from stack.

but how to deal with if i want all of th 6 paramters get from registers not stack?

thank you!

Sorry, no that can't be done.  At least, not without developing a new ABI.

R.