From: Jason Richards <jsn.richards@gmail.com>
To: gdb-patches@sourceware.org
Subject: infinite loop processing siblings - dwarf2reader - dwarf 3 debug
Date: Sun, 25 Oct 2009 04:24:00 -0000 [thread overview]
Message-ID: <9c25d2960910242124p6dfc4f6an72811d4105711fa2@mail.gmail.com> (raw)
I encountered a problem where GDB gets stuck in an infinite loop processing
dwarf 3 debug information. Turns out the producer has placed a
sibling attribute
in a die in a comp unit which references a previous die in the comp unit.
"locate_pdi_sibling" first checks for the presence of this sibling and
returns it
instead of scanning forward past the children (there are children
present in this die).
It seams to me the appropriate fix for this problem is to change
"locate_pdi_sibling"
to first return the location past the children, before returning
sibling information, which
fixes this particular problem.
Is there something I am not thinking about?
Regards-
Jason Richards
next reply other threads:[~2009-10-25 4:24 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-25 4:24 Jason Richards [this message]
2009-10-26 21:13 ` Tom Tromey
2009-10-26 21:50 ` Daniel Jacobowitz
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