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

Richard Henderson
2002-09-19T19:36:32Z

On Thu, Sep 19, 2002 at 03:40:52PM -0400, Richard B. Johnson wrote:
> Well it's not modifying those values.

It's not modifying "a", true, but it _is_ modifying the parameter
area. Which is exactly the kernel bug in question.

> It's really bad code because it could have done:
>
> incl $0x04(%esp)
> incl $0x08(%esp)
> incl $0x1c(%esp)
> jmp bar

Yes, I know.

r~