Date: Wed, 29 Nov 2000 21:23:49 -0800 (PST) From: Marcel Moolenaar <marcel@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/alpha/alpha machdep.c src/sys/alpha/include cpu.h src/sys/alpha/osf1 osf1_signal.c src/sys/compat/svr4 svr4_signal.c src/sys/i386/i386 machdep.c src/sys/i386/include cpu.h src/sys/i386/linux linux.h linux_machdep.c linux_sysvec.c ... Message-ID: <200011300523.eAU5NnO37453@freefall.freebsd.org>
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marcel 2000/11/29 21:23:49 PST
Modified files:
sys/alpha/alpha machdep.c
sys/alpha/include cpu.h
sys/alpha/osf1 osf1_signal.c
sys/compat/svr4 svr4_signal.c
sys/i386/i386 machdep.c
sys/i386/include cpu.h
sys/i386/linux linux.h linux_machdep.c linux_sysvec.c
sys/i386/svr4 svr4_machdep.c
sys/ia64/ia64 machdep.c
sys/ia64/include cpu.h
sys/kern kern_sig.c
sys/pc98/i386 machdep.c
sys/sys proc.h
Log:
Don't use p->p_sigstk.ss_flags to keep state of whether the
process is on the alternate stack or not. For compatibility
with sigstack(2) state is being updated if such is needed.
We now determine whether the process is on the alternate
stack by looking at its stack pointer. This allows a process
to siglongjmp from a signal handler on the alternate stack
to the place of the sigsetjmp on the normal stack. When
maintaining state, this would have invalidated the state
information and causing a subsequent signal to be delivered
on the normal stack instead of the alternate stack.
PR: 22286
Revision Changes Path
1.102 +16 -5 src/sys/alpha/alpha/machdep.c
1.20 +3 -1 src/sys/alpha/include/cpu.h
1.4 +3 -3 src/sys/alpha/osf1/osf1_signal.c
1.11 +2 -2 src/sys/compat/svr4/svr4_signal.c
1.423 +18 -6 src/sys/i386/i386/machdep.c
1.51 +3 -2 src/sys/i386/include/cpu.h
1.51 +1 -2 src/sys/i386/linux/linux.h
1.10 +1 -3 src/sys/i386/linux/linux_machdep.c
1.71 +13 -18 src/sys/i386/linux/linux_sysvec.c
1.15 +2 -2 src/sys/i386/svr4/svr4_machdep.c
1.14 +9 -3 src/sys/ia64/ia64/machdep.c
1.7 +3 -1 src/sys/ia64/include/cpu.h
1.94 +38 -28 src/sys/kern/kern_sig.c
1.191 +18 -6 src/sys/pc98/i386/machdep.c
1.127 +15 -1 src/sys/sys/proc.h
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