perftest.exp revision 1.5 
1# Copyright (C) 2013-2015 Free Software Foundation, Inc.
2
3# This program is free software; you can redistribute it and/or modify
4# it under the terms of the GNU General Public License as published by
5# the Free Software Foundation; either version 3 of the License, or
6# (at your option) any later version.
7#
8# This program is distributed in the hope that it will be useful,
9# but WITHOUT ANY WARRANTY; without even the implied warranty of
10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11# GNU General Public License for more details.
12#
13# You should have received a copy of the GNU General Public License
14# along with this program.  If not, see <http://www.gnu.org/licenses/>.
15
16namespace eval PerfTest {
17    # The name of python file on build.
18    variable remote_python_file
19
20    # A private method to set up GDB for performance testing.
21    proc _setup_perftest {} {
22	variable remote_python_file
23	global srcdir subdir testfile
24
25	set remote_python_file [gdb_remote_download host ${srcdir}/${subdir}/${testfile}.py]
26
27	# Set sys.path for module perftest.
28	gdb_test_no_output "python import os, sys"
29	gdb_test_no_output "python sys.path.insert\(0, os.path.abspath\(\"${srcdir}/${subdir}/lib\"\)\)"
30	gdb_test_no_output "python exec (open ('${remote_python_file}').read ())"
31    }
32
33    # A private method to do some cleanups when performance test is
34    # finished.
35    proc _teardown_perftest {} {
36	variable remote_python_file
37
38	remote_file host delete $remote_python_file
39    }
40
41    # Compile source files of test case.  BODY is the tcl code to do
42    # actual compilation.  Return zero if compilation is successful,
43    # otherwise return non-zero.
44    proc compile {body} {
45	global GDB_PERFTEST_MODE
46
47	if { [info exists GDB_PERFTEST_MODE]
48	     && [string compare $GDB_PERFTEST_MODE "run"] } {
49	    return [uplevel 2 $body]
50	}
51
52	return 0
53    }
54
55    # Start up GDB.
56    proc startup_gdb {body} {
57	uplevel 2 $body
58    }
59
60    # Run the performance test.
61    proc run {body} {
62	global timeout
63	global GDB_PERFTEST_TIMEOUT
64
65	set oldtimeout $timeout
66	if { [info exists GDB_PERFTEST_TIMEOUT] } {
67	    set timeout $GDB_PERFTEST_TIMEOUT
68	} else {
69	    set timeout 3000
70	}
71	uplevel 2 $body
72
73	set timeout $oldtimeout
74    }
75
76    # The top-level interface to PerfTest.
77    # COMPILE is the tcl code to generate and compile source files.
78    # Return zero if compilation is successful,  otherwise return
79    # non-zero.
80    # STARTUP is the tcl code to start up GDB.
81    # RUN is the tcl code to drive GDB to do some operations.
82    proc assemble {compile startup run} {
83	global GDB_PERFTEST_MODE
84
85	if { [eval compile {$compile}] } {
86	    untested "Could not compile source files."
87	    return
88	}
89
90	# Don't execute the run if GDB_PERFTEST_MODE=compile.
91	if { [info exists GDB_PERFTEST_MODE]
92	     && [string compare $GDB_PERFTEST_MODE "compile"] == 0} {
93	    return
94	}
95
96	eval $startup
97
98	_setup_perftest
99
100	eval run {$run}
101
102	_teardown_perftest
103    }
104}
105
106# Return true if performance tests are skipped.
107
108proc skip_perf_tests { } {
109    global GDB_PERFTEST_MODE
110
111    if [info exists GDB_PERFTEST_MODE] {
112
113	if { "$GDB_PERFTEST_MODE" != "compile"
114	     && "$GDB_PERFTEST_MODE" != "run"
115	     && "$GDB_PERFTEST_MODE" != "both" } {
116	    # GDB_PERFTEST_MODE=compile|run|both is allowed.
117	    error "Unknown value of GDB_PERFTEST_MODE."
118	    return 1
119	}
120
121	return 0
122    }
123
124    return 1
125}
126