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Re: Is it safe to use _Bool as asm statement outputs on x86?
- From: "H. Peter Anvin" <hpa at zytor dot com>
- To: "H.J. Lu" <hjl dot tools at gmail dot com>
- Cc: GCC Development <gcc at gcc dot gnu dot org>, Richard Henderson <rth at redhat dot com>
- Date: Tue, 02 Jun 2015 23:31:30 -0700
- Subject: Re: Is it safe to use _Bool as asm statement outputs on x86?
- Authentication-results: sourceware.org; auth=none
- References: <556E4067 dot 3090905 at zytor dot com> <556E5229 dot 4010809 at redhat dot com> <556E9B92 dot 60601 at zytor dot com> <CAMe9rOq7i-R5ijMt7jwruZ4JbS=BVE3rbFnYDx=Xfkbwc5M6YQ at mail dot gmail dot com>
On 06/02/2015 11:23 PM, H.J. Lu wrote:
> Trampling code for nested functions puts code on stack.
This is an issue for the CS â DS case, as opposed to _Bool, I assume.
In other words, we are okay if and only if we can run with an NX stack?