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authorPaul Mackerras <paulus@samba.org>2005-11-14 21:55:15 +1100
committerPaul Mackerras <paulus@samba.org>2005-11-15 11:11:32 +1100
commitcc657f53928997c65bf2409c45166c6ceee8d306 (patch)
tree247e16076381a947b4305bb6467acde1189f3918 /arch/powerpc/kernel/misc_32.S
parent493f25ef4087395891c99fcfe2c72e62e293e89f (diff)
powerpc: Fix clearing of the FPSCR when invoking a signal handler
As pointed out by Gary Byers, we were clearing the image of the FPSCR (floating point status and control register) in the thread_struct before copying it to the user stack when invoking a signal. Thus the task would see its FPSCR getting cleared when it took a signal. While fixing it I noticed that our swapcontext system call was also clearing FPSCR. It shouldn't, so I fixed that too. Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/misc_32.S')
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