Re: [RFA/MI testsuite] gdb/701 test (varobj)

Andrew Cagney
2002-09-14T00:37:10Z

> Hi,
>
> The test below tickles a crashing bug in gdb's varobj code, as reported in
> gdb/701.
>
> [I felt it was a lot easier to add a new test file than to try to
> integrate this into the existing tests -- too many line numbers to reorder
> if adding a line into var-cmd.c...]

Ok. Andrew

> ChangeLog
> 2002-09-13 Keith Seitz <keiths@redhat.com>
>
> * gdb701.exp: New file for testing varobj target type bug.
> * gdb701.c: New file.
>
> Patch
> Index: testsuite/gdb.mi/gdb701.c
> ===================================================================
> RCS file: testsuite/gdb.mi/gdb701.c
> diff -N testsuite/gdb.mi/gdb701.c
> *** testsuite/gdb.mi/gdb701.c 1 Jan 1970 00:00:00 -0000
> --- testsuite/gdb.mi/gdb701.c 13 Sep 2002 23:47:55 -0000
> ***************
> *** 0 ****
> --- 1,15 ----
> + struct _foo
> + {
> + int x;
> + int y;
> + int z;
> + };
> +
> + typedef struct _foo Foo;
> +
> + int
> + main (int argc, char *argv[])
> + {
> + Foo *foo = 0;
> + exit (0);
> + }
> Index: testsuite/gdb.mi/gdb701.exp
> ===================================================================
> RCS file: testsuite/gdb.mi/gdb701.exp
> diff -N testsuite/gdb.mi/gdb701.exp
> *** testsuite/gdb.mi/gdb701.exp 1 Jan 1970 00:00:00 -0000
> --- testsuite/gdb.mi/gdb701.exp 13 Sep 2002 23:47:55 -0000
> ***************
> *** 0 ****
> --- 1,67 ----
> + # Copyright 2002 Free Software Foundation, Inc.
> +
> + # This program is free software; you can redistribute it and/or modify
> + # it under the terms of the GNU General Public License as published by
> + # the Free Software Foundation; either version 2 of the License, or
> + # (at your option) any later version.
> + #
> + # This program is distributed in the hope that it will be useful,
> + # but WITHOUT ANY WARRANTY; without even the implied warranty of
> + # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + # GNU General Public License for more details.
> + #
> + # You should have received a copy of the GNU General Public License
> + # along with this program; if not, write to the Free Software
> + # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
> +
> + # Please email any bugs, comments, and/or additions to this file to:
> + # bug-gdb@prep.ai.mit.edu
> +
> + #
> + # test gdb/701
> + #
> +
> + load_lib mi-support.exp
> + set MIFLAGS "-i=mi"
> +
> + gdb_exit
> + if [mi_gdb_start] {
> + continue
> + }
> +
> + set testfile gdb701
> + set srcfile "$testfile.c"
> + set binfile $objdir/$subdir/$testfile
> + if {[gdb_compile $srcdir/$subdir/$srcfile $binfile executable debug] != ""} {
> + gdb_suppress_entire_file "Testcase compile failed, so all test in this file will automatically fail."
> + }
> +
> + # When varobj reports the types of objects, it often isn't really reporting
> + # the type as GDB knows it. For example, in this testcase, we have a
> + # structure which has been typedefed. A varobj of this type would really have
> + # a type of "TYPE_CODE_TYPEDEF". It's target type is "TYPE_CODE_STRUCT". Varobj
> + # should skip over the TYPEDEF type when figuring out the varobj's children.
> + # If it doesn't, Bad Things Happen(TM).
> +
> + # Run to main
> + mi_run_to_main
> +
> + # Step over "foo = 0"
> + mi_next "step over \"foo = 0\""
> +
> + mi_gdb_test "-var-create fooPtr * foo" \
> + "(&\".*\"\r\n)*\\^done,name=\"fooPtr\",numchild=\"3\",type=\"Foo \\*\"" \
> + "create fooPtr"
> +
> + mi_gdb_test "-var-list-children fooPtr" \
> + "(&\".*\"\r\n)*\\^done,numchild=\"3\",.*" \
> + "list children of fooPtr"
> +
> + foreach i [list x y z] {
> + mi_gdb_test "-var-list-children fooPtr.$i" \
> + "(&\".*\"\r\n)*\\^done,numchild=\"0\"" \
> + "list children of fooPtr.$i"
> + }
> +
> + mi_gdb_exit
> + return 0
>
>