Arch Linux

Description: GDB crashes when a variable is casted as a char [][] type.


GDB Version: gdb 7.9-1 (on a 64 bit system).

Steps to reproduce:
1. gdb ./a.out
2. print (char []][])<variable or constant>
3. GDB Crashes.

Example LOG:

zsh/4 1019 % gdb ./a.out
GNU gdb (GDB) 7.9
Copyright (C) 2015 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-unknown-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from ./a.out...done.
(gdb) set logging on
Copying output to gdb.txt.
(gdb) print (char [][])123
$1 =
gdbtypes.c:4215: internal-error: copy_type: Assertion `TYPE_OBJFILE_OWNED (type)' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) y

This is a bug, please report it. For instructions, see:
<http://www.gnu.org/software/gdb/bugs/>.

gdbtypes.c:4215: internal-error: copy_type: Assertion `TYPE_OBJFILE_OWNED (type)' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Create a core file of GDB? (y or n) y
zsh: abort (core dumped) gdb ./a.out