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

Keith Seitz
2002-09-13T23:49:56Z

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...]

Keith

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