On Sat, 28 Jun 2008, David Schultz wrote:
On Sun, Jun 29, 2008, Bruce Evans wrote:
On Sat, 28 Jun 2008, David Schultz wrote:
Don't clobber the FPU exception flags in longjmp. C99 requires them
to remain unchanged.
...but got cut off somehow.
This is wrong. It breaks longjmp() from all COMPAT_[3-4] signal
handlers (not just ones for SIGFPE). I don't like the corresponding
change for amd64 either, and only approved it since amd64 doesn't
support COMPAT_[3-4] signal handlers.
How is it possible for an application linked against an 8.X libc,
and which is doing anything even remotely close to reasonable,
to get COMPAT_3 or COMPAT_4 signal behavior?
Nevermind. I forgot the layering.
Bruce
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