[PATCH v3 12/13] test: basic c99 vla tests for C primitives

Sanimir Agovic
2013-12-04T14:21:27Z

2013-10-18 Keven Boell <keven.boell@intel.com>
Sanimir Agovic <sanimir.agovic@intel.com>

gdb/testsuite:
* gdb.base/vla-datatypes.c: New. Test source file
for VLA datatype checks.
* gdb.base/vla-datatypes.exp: New. Tests ensure that
a VLA in C can be evaluated correctly with standard
C types.

Change-Id: I7e9ac796ac7e9afa983d60e6d4b506017e4afe54
Signed-off-by: Sanimir Agovic <sanimir.agovic@intel.com>
---
gdb/testsuite/gdb.base/vla-datatypes.c | 86 +++++++++++++++++++
gdb/testsuite/gdb.base/vla-datatypes.exp | 138 +++++++++++++++++++++++++++++++
2 files changed, 224 insertions(+)
create mode 100644 gdb/testsuite/gdb.base/vla-datatypes.c
create mode 100644 gdb/testsuite/gdb.base/vla-datatypes.exp

diff --git a/gdb/testsuite/gdb.base/vla-datatypes.c b/gdb/testsuite/gdb.base/vla-datatypes.c
new file mode 100644
index 0000000..267d239
--- /dev/null
+++ b/gdb/testsuite/gdb.base/vla-datatypes.c
@@ -0,0 +1,86 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+ Copyright 2013 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/>. */
+
+#include <stddef.h>
+#define SIZE 5
+
+struct foo
+{
+ int a;
+};
+
+typedef struct bar
+{
+ int x;
+ struct foo y;
+} BAR;
+
+void
+vla_factory (int n)
+{
+ int int_vla[n];
+ unsigned int unsigned_int_vla[n];
+ double double_vla[n];
+ float float_vla[n];
+ long long_vla[n];
+ unsigned long unsigned_long_vla[n];
+ char char_vla[n];
+ short short_vla[n];
+ unsigned short unsigned_short_vla[n];
+ unsigned char unsigned_char_vla[n];
+ struct foo foo_vla[n];
+ BAR bar_vla[n];
+ int i;
+
+ for (i = 0; i < n; i++)
+ {
+ int_vla[i] = i*2;
+ unsigned_int_vla[i] = i*2;
+ double_vla[i] = i/2.0;
+ float_vla[i] = i/2.0f;
+ long_vla[i] = i*2;
+ unsigned_long_vla[i] = i*2;
+ char_vla[i] = 'A';
+ short_vla[i] = i*2;
+ unsigned_short_vla[i] = i*2;
+ unsigned_char_vla[i] = 'A';
+ foo_vla[i].a = i*2;
+ bar_vla[i].x = i*2;
+ bar_vla[i].y.a = i*2;
+ }
+
+ size_t int_size = sizeof(int_vla); /* vlas_filled */
+ size_t uint_size = sizeof(unsigned_int_vla);
+ size_t double_size = sizeof(double_vla);
+ size_t float_size = sizeof(float_vla);
+ size_t long_size = sizeof(long_vla);
+ size_t char_size = sizeof(char_vla);
+ size_t short_size = sizeof(short_vla);
+ size_t ushort_size = sizeof(unsigned_short_vla);
+ size_t uchar_size = sizeof(unsigned_char_vla);
+ size_t foo_size = sizeof(foo_vla);
+ size_t bar_size = sizeof(bar_vla);
+
+ return; /* break_end_of_vla_factory */
+}
+
+int
+main ()
+{
+ vla_factory(SIZE);
+ return 0;
+}
diff --git a/gdb/testsuite/gdb.base/vla-datatypes.exp b/gdb/testsuite/gdb.base/vla-datatypes.exp
new file mode 100644
index 0000000..c251709
--- /dev/null
+++ b/gdb/testsuite/gdb.base/vla-datatypes.exp
@@ -0,0 +1,138 @@
+# Copyright 2013 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/>.
+
+standard_testfile ".c"
+if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile}] } {
+ return -1
+}
+
+if ![runto_main] {
+ return -1
+}
+
+gdb_breakpoint [gdb_get_line_number "vlas_filled"]
+gdb_continue_to_breakpoint "vlas_filled"
+
+# Check the values of VLA's.
+gdb_test "print int_vla" "\\$\\d+ = \\\{0, 2, 4, 6, 8\\\}" \
+ "print int_vla"
+gdb_test "print unsigned_int_vla" "\\$\\d+ = \\\{0, 2, 4, 6, 8\\\}" \
+ "print unsigned_int_vla"
+gdb_test "print double_vla" "\\$\\d+ = \\\{0, 0.5, 1, 1.5, 2\\\}" \
+ "print double_vla"
+gdb_test "print float_vla" "\\$\\d+ = \\\{0, 0.5, 1, 1.5, 2\\\}" \
+ "print float_vla"
+gdb_test "print long_vla" "\\$\\d+ = \\\{0, 2, 4, 6, 8\\\}" \
+ "print long_vla"
+gdb_test "print unsigned_long_vla" "\\$\\d+ = \\\{0, 2, 4, 6, 8\\\}" \
+ "print unsigned_long_vla"
+gdb_test "print char_vla" "\\$\\d+ = \"AAAAA\"" \
+ "print char_vla"
+gdb_test "print short_vla" "\\$\\d+ = \\\{0, 2, 4, 6, 8\\\}" \
+ "print short_vla"
+gdb_test "print unsigned_short_vla" "\\$\\d+ = \\\{0, 2, 4, 6, 8\\\}" \
+ "print unsigned_short_vla"
+gdb_test "print unsigned_char_vla" "\\$\\d+ = \"AAAAA\"" \
+ "print unsigned_char_vla"
+gdb_test "print foo_vla" \
+ "\\\{\\\{a = 0\\\}, \\\{a = 2\\\}, \\\{a = 4\\\}, \\\{a = 6\\\}, \\\{a = 8\\\}\\\}" \
+ "print foo_vla"
+gdb_test "print bar_vla" \
+ "\\\{\\\{x = 0, y = \\\{a = 0\\\}\\\}, \\\{x = 2, y = \\\{a = 2\\\}\\\}, \\\{x = 4, y = \\\{a = 4\\\}\\\}, \\\{x = 6, y = \\\{a = 6\\\}\\\}, \\\{x = 8, y = \\\{a = 8\\\}\\\}\\\}" \
+ "print bar_vla"
+
+# Check whatis of VLA's.
+gdb_test "whatis int_vla" "type = int \\\[5\\\]" "whatis int_vla"
+gdb_test "whatis unsigned_int_vla" "type = unsigned int \\\[5\\\]" \
+ "whatis unsigned_int_vla"
+gdb_test "whatis double_vla" "type = double \\\[5\\\]" "whatis double_vla"
+gdb_test "whatis float_vla" "type = float \\\[5\\\]" "whatis float_vla"
+gdb_test "whatis long_vla" "type = long( int)? \\\[5\\\]" "whatis long_vla"
+gdb_test "whatis unsigned_long_vla" \
+ "type = (long unsigned int|unsigned long) \\\[5\\\]" \
+ "whatis unsigned_long_vla"
+gdb_test "whatis char_vla" "type = char \\\[5\\\]" "whatis char_vla"
+gdb_test "whatis short_vla" "type = short( int)? \\\[5\\\]" \
+ "whatis short_vla"
+gdb_test "whatis unsigned_short_vla" \
+ "type = (short unsigned int|unsigned short) \\\[5\\\]" \
+ "whatis unsigned_short_vla"
+gdb_test "whatis unsigned_char_vla" "type = unsigned char \\\[5\\\]" \
+ "whatis unsigned_char_vla"
+gdb_test "whatis foo_vla" "type = struct foo \\\[5\\\]" "whatis foo_vla"
+gdb_test "whatis bar_vla" "type = BAR \\\[5\\\]" "whatis bar_vla"
+
+# Check ptype of VLA's.
+gdb_test "ptype int_vla" "type = int \\\[5\\\]" "ptype int_vla"
+gdb_test "ptype unsigned_int_vla" "type = unsigned int \\\[5\\\]" \
+ "ptype unsigned_int_vla"
+gdb_test "ptype double_vla" "type = double \\\[5\\\]" "ptype double_vla"
+gdb_test "ptype float_vla" "type = float \\\[5\\\]" "ptype float_vla"
+gdb_test "ptype long_vla" "type = long( int)? \\\[5\\\]" "ptype long_vla"
+gdb_test "ptype unsigned_long_vla" "type = unsigned long \\\[5\\\]" \
+ "ptype unsigned_long_vla"
+gdb_test "ptype char_vla" "type = char \\\[5\\\]" "ptype char_vla"
+gdb_test "ptype short_vla" "type = short( int)? \\\[5\\\]" \
+ "ptype short_vla"
+gdb_test "ptype unsigned_short_vla" "type = unsigned short \\\[5\\\]" \
+ "ptype unsigned_short_vla"
+gdb_test "ptype unsigned_char_vla" "type = unsigned char \\\[5\\\]" \
+ "ptype unsigned_char_vla"
+gdb_test "ptype foo_vla" "type = struct foo {\r\n\\s+int a;\r\n} \\\[5\\\]" \
+ "ptype foo_vla"
+gdb_test "ptype bar_vla" \
+ "type = struct bar {\r\n\\s+int x;\r\n\\s+struct foo y;\r\n} \\\[5\\\]" \
+ "ptype bar_vla"
+
+# Check the size of the VLA's.
+gdb_breakpoint [gdb_get_line_number "break_end_of_vla_factory"]
+gdb_continue_to_breakpoint "break_end_of_vla_factory"
+gdb_test "print int_size == sizeof(int_vla)" "\\$\\d+ = 1" "size of int_vla"
+gdb_test "print uint_size == sizeof(unsigned_int_vla)" "\\$\\d+ = 1" \
+ "size of unsigned_int_vla"
+gdb_test "print double_size == sizeof(double_vla)" "\\$\\d+ = 1" \
+ "size of double_vla"
+gdb_test "print float_size == sizeof(float_vla)" "\\$\\d+ = 1" \
+ "size of float_vla"
+gdb_test "print long_size == sizeof(long_vla)" "\\$\\d+ = 1" \
+ "size of long_vla"
+gdb_test "print char_size == sizeof(char_vla)" "\\$\\d+ = 1" \
+ "size of char_vla"
+gdb_test "print short_size == sizeof(short_vla)" "\\$\\d+ = 1" \
+ "size of short_vla"
+gdb_test "print ushort_size == sizeof(unsigned_short_vla)" "\\$\\d+ = 1" \
+ "size of unsigned_short_vla"
+gdb_test "print uchar_size == sizeof(unsigned_char_vla)" "\\$\\d+ = 1" \
+ "size of unsigned_char_vla"
+gdb_test "print foo_size == sizeof(foo_vla)" "\\$\\d+ = 1" "size of foo_vla"
+gdb_test "print bar_size == sizeof(bar_vla)" "\\$\\d+ = 1" "size of bar_vla"
+
+# Check side effects for sizeof argument.
+set sizeof_int [get_sizeof "int" 4]
+gdb_test_no_output "set variable int_vla\[0\] = 42" \
+ "set variable int_vla\[0\] = 42"
+
+gdb_test "print sizeof (++int_vla\[0\])" "\\$\\d+ = ${sizeof_int}" \
+ "print sizeof (++int_vla\[0\])"
+gdb_test "print int_vla\[0\]" "\\$\\d+ = 42" \
+ "print int_vla\[0\] - sizeof no side effects"
+
+gdb_test "ptype ++int_vla\[0\]" "type = int" "ptype ++int_vla\[0\]"
+gdb_test "print int_vla\[0\]" "\\$\\d+ = 42" \
+ "print int_vla\[0\] - ptype no side effects"
+
+gdb_test "whatis ++int_vla\[0\]" "type = int" "whatis ++int_vla\[0\]"
+gdb_test "print int_vla\[0\]" "\\$\\d+ = 42" \
+ "print int_vla\[0\] - whatis no side effects"
--
1.8.3.1