Date: Mon, 11 Nov 2002 00:11:44 -0800 (PST) From: Marcel Moolenaar <marcel@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/ia64/include setjmp.h src/lib/libc/ia64/gen _setjmp.S setjmp.S sigsetjmp.S Message-ID: <200211110811.gAB8Biwn025594@repoman.freebsd.org>
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marcel 2002/11/11 00:11:44 PST
Modified files:
sys/ia64/include setjmp.h
lib/libc/ia64/gen _setjmp.S setjmp.S sigsetjmp.S
Log:
ia64 ABI breaker:
Don't force 16-byte alignment at run-time. Do it at compile-time.
This saves us the pointer fiddling by the setjmp functions and
reduces complexity. While here, increase the jmp_buf by 16 bytes
to an even 512 bytes. Coincidentally, due to the way alignment
was handled prior to this change, the jmp_buf has not changed in
size, but only in how the space is used. Prior to this change
the 16 bytes were reserved for enforcing alignment; now they are
reserved by us for future extensions.
Therefore, this ABI breaker is relatively save: the failure is
always an alignment trap.
Revision Changes Path
1.7 +0 -14 src/lib/libc/ia64/gen/_setjmp.S
1.8 +3 -11 src/lib/libc/ia64/gen/setjmp.S
1.6 +3 -13 src/lib/libc/ia64/gen/sigsetjmp.S
1.8 +17 -30 src/sys/ia64/include/setjmp.h
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