[PATCH 1/3] Test on disassemble

[Yao Qi <yao at codesourcery dot com>]

This patch adds a test case to test the performance of GDB doing
disassembly.

gdb/testsuite/

     * gdb.perf/disassemble.exp: New.
     * gdb.perf/disassemble.py: New.
---
 gdb/testsuite/gdb.perf/disassemble.exp |   56 ++++++++++++++++++++++++++++++++
 gdb/testsuite/gdb.perf/disassemble.py  |   36 ++++++++++++++++++++
 2 files changed, 92 insertions(+), 0 deletions(-)
 create mode 100644 gdb/testsuite/gdb.perf/disassemble.exp
 create mode 100644 gdb/testsuite/gdb.perf/disassemble.py

diff --git a/gdb/testsuite/gdb.perf/disassemble.exp b/gdb/testsuite/gdb.perf/disassemble.exp
new file mode 100644
index 0000000..6a2b2fd
--- /dev/null
+++ b/gdb/testsuite/gdb.perf/disassemble.exp
@@ -0,0 +1,56 @@
+# Copyright (C) 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/>.
+
+# This test case is to test the speed of GDB when it is doing disassemble
+# some large functions in GDB.
+load_lib perftest.exp
+
+if [skip_perf_tests] {
+    return 0
+}
+
+global GDB
+
+standard_testfile .c
+# Overwrite $binfile
+set binfile $GDB
+
+PerfTest::assemble {
+    # Don't have compilation step.
+    return 0
+} {
+    global srcdir subdir
+    global binfile
+
+    gdb_exit
+    gdb_start
+    # When GDB is debugging GDB, the prompt is changed to "(top-gdb) ".
+    # In order to avoid the confusion of pattern matching, set the
+    # gdb_prompt to '(top-gdb)'.
+
+    global gdb_prompt
+    set gdb_prompt "\[(\]top-gdb\[)\]"
+
+    gdb_test_no_output "set prompt \(top-gdb\) " ""
+
+    gdb_reinitialize_dir $srcdir/$subdir
+    gdb_load ${binfile}
+
+    if ![runto_main] {
+	return -1
+    }
+} {
+    gdb_test "python Disassemble\(\).run()"
+}
diff --git a/gdb/testsuite/gdb.perf/disassemble.py b/gdb/testsuite/gdb.perf/disassemble.py
new file mode 100644
index 0000000..b8e7dfc
--- /dev/null
+++ b/gdb/testsuite/gdb.perf/disassemble.py
@@ -0,0 +1,36 @@
+# Copyright (C) 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/>.
+
+from perftest import perftest
+from perftest import measure
+
+class Disassemble(perftest.TestCaseWithBasicMeasurements):
+    def __init__(self):
+        super (Disassemble, self).__init__ ("disassemble")
+
+    def warm_up(self):
+        do_test_command = "disassemble ada_evaluate_subexp"
+        gdb.execute (do_test_command, False, True)
+
+    def _do_test(self, c):
+        for func in ["evaluate_subexp_standard", "handle_inferior_event", "c_parse_internal"]:
+            for i in range(c+1):
+                do_test_command = "disassemble %s" % func
+                gdb.execute (do_test_command, False, True)
+
+    def execute_test(self):
+        for i in range(3):
+            self.measure.measure(lambda: self._do_test(i), i)
+
-- 
1.7.7.6