Date: Wed, 29 Sep 1999 08:06:28 -0700 (PDT) From: Marcel Moolenaar <marcel@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/i386/i386 genassym.c locore.s machdep.c src/sys/i386/include sigframe.h ucontext.h db_machdep.h frame.h setjmp.h signal.h src/sys/alpha/alpha machdep.c src/sys/alpha/include sigframe.h ucontext.h signal.h ... Message-ID: <199909291506.IAA58226@freefall.freebsd.org>
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marcel 1999/09/29 08:06:28 PDT
Modified files:
sys/i386/i386 genassym.c locore.s machdep.c
sys/i386/include db_machdep.h frame.h setjmp.h signal.h
sys/alpha/alpha machdep.c
sys/alpha/include signal.h
sys/pc98/i386 machdep.c
Added files:
sys/i386/include sigframe.h ucontext.h
sys/alpha/include sigframe.h ucontext.h
Log:
sigset_t change (part 3 of 5)
-----------------------------
By introducing a new sigframe so that the signal handler operates
on the new siginfo_t and on ucontext_t instead of sigcontext, we
now need two version of sendsig and sigreturn.
A flag in struct proc determines whether the process expects an
old sigframe or a new sigframe. The signal trampoline handles
which sigreturn to call. It does this by testing for a magic
cookie in the frame.
The alpha uses osigreturn to implement longjmp. This means that
osigreturn is not only used for compatibility with existing
binaries. To handle the new sigset_t, setjmp saves it in
sc_reserved (see NOTE).
the struct sigframe has been moved from frame.h to sigframe.h
to handle the complex header dependencies that was caused by
the new sigframe.
NOTE: For the i386, the size of jmp_buf has been increased to hold
the new sigset_t. On the alpha this has been prevented by
using sc_reserved in sigcontext.
Revision Changes Path
1.79 +13 -5 src/sys/i386/i386/genassym.c
1.128 +30 -10 src/sys/i386/i386/locore.s
1.362 +276 -71 src/sys/i386/i386/machdep.c
1.15 +2 -1 src/sys/i386/include/db_machdep.h
1.20 +1 -39 src/sys/i386/include/frame.h
1.4 +2 -2 src/sys/i386/include/setjmp.h
1.10 +30 -28 src/sys/i386/include/signal.h
1.54 +198 -41 src/sys/alpha/alpha/machdep.c
1.4 +5 -3 src/sys/alpha/include/signal.h
1.133 +277 -71 src/sys/pc98/i386/machdep.c
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