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4b84c69b5f
Have most signals go through an arch-provided handler which recovers the sigcontext and then calls a generic handler. This replaces the ARCH_GET_SIGCONTEXT macro, which was somewhat fragile. On x86_64, recovering %rdx (which holds the sigcontext pointer) must be the first thing that happens. sig_handler duly invokes that first, but there is no guarantee that I can see that instructions won't be reordered such that %rdx is used before that. Having the arch provide the handler seems much more robust. Some signals in some parts of UML require their own handlers - these places don't call set_handler any more. They call sigaction or signal themselves. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
10 lines
196 B
Makefile
10 lines
196 B
Makefile
#
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# Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
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# Licensed under the GPL
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#
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obj-$(CONFIG_MODE_SKAS) = registers.o signal.o tls.o
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USER_OBJS := $(obj-y)
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include arch/um/scripts/Makefile.rules
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