Exception Table out-of-range but still keep walking

[Quuxplusone]

Bugzilla Link	PR14312
Status	RESOLVED FIXED
Importance	P normal
Reported by	WenHan Gu (wenhan.gu@gmail.com)
Reported on	2012-11-10 02:08:49 -0800
Last modified on	2012-11-13 07:20:45 -0800
Version	unspecified
Hardware	Other Linux
CC	pawel@32bitmicro.com, wenhan.gu@gmail.com
Fixed by commit(s)
Attachments	eh_table_out_of_range.patch (985 bytes, text/plain)
Blocks
Blocked by
See also

Hi all,

When I test this test case, I found it will keep walking through exception
table entry even though it should stop and terminate.
http://www.doc.ic.ac.uk/~awl03/cgi-bin/trac.cgi/miro/browser/trunk/gcc/gcc/testsuite/g%2B%2B.old-deja/g%2B%2B.mike/eh23.C

The reason is that the exception table didn't encode this into one entry, but,
libcxxabi always trust it can find the one. (i.e., while (true) loop)

I've tested on ARM and x86, and both have this bug.
I trust other platforms have this problem too.
This may cause nothing error, infinite loop, or other errors, just depending on
the next upcoming entry.

Thanks.

[Quuxplusone]

Attached eh_table_out_of_range.patch (985 bytes, text/plain): Fix while loop condition

[Quuxplusone]

Thanks for your persistence on this one. Your patch committed revision 167733.

Please also send a patch for CREDITS.TXT.

[Quuxplusone]

Hi Howard,

Big thanks for your help!
This is the patch for CREDITS.TXT. Thanks!

Index: CREDITS.TXT
===================================================================
--- CREDITS.TXT (revision 167830)
+++ CREDITS.TXT (working copy)
@@ -28,3 +28,7 @@
 E: erik.olofsson@hansoft.se
 E: erik@olofsson.info
 D: Minor patches and fixes
+
+N: Nowar Gu
+E: wenhan.gu@gmail.com
+D: Minor patches and fixes

(In reply to comment #2)
> Thanks for your persistence on this one.  Your patch committed revision
167733.
>
> Please also send a patch for CREDITS.TXT.