CVS commit: src/external/gpl3/gcc/dist/gcc

["Christos Zoulas" <christos%netbsd.org@localhost>]

Module Name:    src
Committed By:   christos
Date:           Thu Jan 17 19:10:57 UTC 2013

Modified Files:
        src/external/gpl3/gcc/dist/gcc: dwarf2out.c

Log Message:
Apply GCC/35998 from FreeBSD http://svnweb.freebsd.org/changeset/base/245024

gcc: avoid generating negative values to DW_AT_byte_size.

There is a bug in gcc (GCC/35998) where dwarf reports
sizes of unsigned -1 (0xffffffff).

On NetBSD this generated a faulty CTF entry which then
caused a segfault in ctfmerge. The issue was worked
around in NetBSD's Dtrace but since the issue originated
in gcc, it seems reasonable to fix it here.

Thanks to Christoph Mallon for pointing out a correct fix.


To generate a diff of this commit:
cvs rdiff -u -r1.1.1.2 -r1.2 src/external/gpl3/gcc/dist/gcc/dwarf2out.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.