Re: Syscall changes registers beyond %eax, on linux-i386

Richard Henderson
2002-09-19T18:26:12Z

On Thu, Sep 19, 2002 at 02:04:43PM -0400, Brian Gerst wrote:
> Now that I've thought about it more, I think the best solution is to go
> through all the syscalls (a big job, I know), and declare the parameters
> as const, so that gcc knows it can't modify them, and will throw a
> warning if we try.

The parameter area belongs to the callee, and it may *always* be modified.

r~