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

From: Brian Gerst (
Date: Thu Sep 19 2002 - 13:51:44 EST

Richard Henderson wrote:
> 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~

The parameters can not be modified if they are declared const though,
that's my point.

				Brian Gerst

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