symtab/1651: gdb-6.1 crashes on long enum compiled with AIX cc -g

[ppluzhnikov at charter dot net]

>Number:         1651
>Category:       symtab
>Synopsis:       gdb-6.1 crashes on long enum compiled with AIX cc -g
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri May 14 20:58:01 UTC 2004
>Closed-Date:
>Last-Modified:
>Originator:     Paul Pluzhnikov
>Release:        gdb-6.1
>Organization:
>Environment:
AIX 5.1 / PowerPC
IBM C compiler: vacpp.cmp.C 5.0.2.0
>Description:
gdb 5.0 and 6.1 crash when debugging trivial attached test
case, apparently in scan_xcoff_symtab():

$ gdb-6.1/gdb/gdb a.out 
GNU gdb 6.1
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "powerpc-ibm-aix5.1.0.0"...Illegal instruction (core dumped)
>How-To-Repeat:
Generate the test case:
$ perl ./junk.pl 1000 > junk.c &&
  cc -g junk.c && gdb a.out

# Gdb crashes when repeat-count is over 750
# Note: it does not crash when the same code is compiled
# with 'gcc', only with IBM 'cc'
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: application/octet-stream; name="junk.pl"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="junk.pl"

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