Re: [RFA] Add testcase for locals identified with FUNCTION::VAR syntax.

Paul Hilfinger
2011-12-30T21:54:25Z

Revised test case, with suggested revisions.

Paul N. Hilfinger
(Hilfinger@adacore.com)

This test stops inside a recursive function after a few levels of recursion,
goes up some frames, and then accesses a local variable with 'print foo::val'
rather than the usual 'print val' to see if the former pays attention to the
selected frame.

2011-12-27 Paul Hilfinger <hilfingr@adacore.com>
Joel Brobecker <brobecker@adacore.com>

* gdb.base/recpar.c, gdb.base/recpar.exp: New files.
---
gdb/testsuite/ChangeLog | 9 ++++++++
gdb/testsuite/gdb.base/recpar.c | 42 +++++++++++++++++++++++++++++++++++++
gdb/testsuite/gdb.base/recpar.exp | 42 +++++++++++++++++++++++++++++++++++++
3 files changed, 93 insertions(+), 0 deletions(-)
create mode 100644 gdb/testsuite/gdb.base/recpar.c
create mode 100644 gdb/testsuite/gdb.base/recpar.exp

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 91b9487..ef85468 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,12 @@
+2011-12-30 Paul Hilfinger <hilfingr@adacore.com>
+
+ * gdb.base/recpar.exp: Use standard definitions ($decimal, $hex)
+ in place of local ones.
+
+2011-12-27 Paul Hilfinger <hilfingr@adacore.com>
+
+ * gdb.base/recpar.c, gdb.base/recpar.exp: New files.
+
2011-12-30 Edjunior Machado <emachado@linux.vnet.ibm.com>

* gdb.python/py-finish-breakpoint.exp: Add `.' prefix for ppc64.
diff --git a/gdb/testsuite/gdb.base/recpar.c b/gdb/testsuite/gdb.base/recpar.c
new file mode 100644
index 0000000..bba5f5a
--- /dev/null
+++ b/gdb/testsuite/gdb.base/recpar.c
@@ -0,0 +1,42 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+ Copyright 2011 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 3 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, see <http://www.gnu.org/licenses/>. */
+
+int
+foo (int n)
+{
+ int val = n;
+
+ {
+ char val = n ? 'y' : 'n'; /* Hides upper-level `val'. */
+
+ if (val == 'y') /* BREAK */
+ return n + foo (n - 1);
+ }
+
+ return 0;
+}
+
+int
+main (void)
+{
+ int res = foo (5);
+
+ if (res != 15) /* Dummy use of variable res. */
+ return 1;
+
+ return 0;
+}
diff --git a/gdb/testsuite/gdb.base/recpar.exp b/gdb/testsuite/gdb.base/recpar.exp
new file mode 100644
index 0000000..fe7a70a
--- /dev/null
+++ b/gdb/testsuite/gdb.base/recpar.exp
@@ -0,0 +1,42 @@
+# Copyright (C) 2011 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 3 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, see <http://www.gnu.org/licenses/>.
+
+set testfile recpar
+set srcfile ${testfile}.c
+if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile}] } {
+ return -1
+}
+
+if ![runto_main] {
+ untested ${testfile}.exp
+ return -1
+}
+
+gdb_test "break $srcfile:[gdb_get_line_number BREAK $srcfile] if n == 3" \
+ "Breakpoint $decimal at $hex: file .*recpar\\.c, line $decimal\\."
+
+gdb_test "continue" \
+ "Breakpoint .* foo \\(n=3\\) at .*$srcfile:$decimal.*"
+
+gdb_test "backtrace" \
+ "#0 +foo \\(n=3\\).*\r\n#1.* foo \\(n=4\\).*\r\n#2.* foo \\(n=5\\).*#3.* main \\(\\).*"
+
+gdb_test "frame 2" \
+ "#2 .* foo \\(n=5\\) .*"
+
+# In the currently selected frame, n=5, and thus foo::val should be 5
+# as well.
+gdb_test "print foo::val" \
+ " = 5"
--
1.7.0.4