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Richard Henderson wrote:
> Also adds unwind info for the sigreturn entry points.
Sweet.
> This can
> be used instead of special-case hacks currently in libgcc and
> gdb, and by extension allows the kernel to change these entry
> points without breaking userland.
Exactly. This means we can get rid of the int $0x80. I.e., move the
sigreturn code in the two .S files for sysenter and int80. Reducing the
cost of signals is always good.
I'm not sure how this use of sigreturn has to look like. Linus, maybe
you should do it yourself.
- --
- --------------. ,-. 444 Castro Street
Ulrich Drepper \ ,-----------------' \ Mountain View, CA 94041 USA
Red Hat `--' drepper at redhat.com `---------------------------
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