SConscript revision 6194 
1# -*- mode:python -*-
2
3# Copyright (c) 2004-2006 The Regents of The University of Michigan
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions are
8# met: redistributions of source code must retain the above copyright
9# notice, this list of conditions and the following disclaimer;
10# redistributions in binary form must reproduce the above copyright
11# notice, this list of conditions and the following disclaimer in the
12# documentation and/or other materials provided with the distribution;
13# neither the name of the copyright holders nor the names of its
14# contributors may be used to endorse or promote products derived from
15# this software without specific prior written permission.
16#
17# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28#
29# Authors: Steve Reinhardt
30#          Kevin Lim
31
32import os, signal
33import sys
34import glob
35from SCons.Script.SConscript import SConsEnvironment
36
37Import('env')
38
39env['DIFFOUT'] = File('diff-out')
40
41# Dict that accumulates lists of tests by category (quick, medium, long)
42env.Tests = {}
43
44def contents(node):
45    return file(str(node)).read()
46
47# functions to parse return value from scons Execute()... not the same
48# as wait() etc., so python built-in os funcs don't work.
49def signaled(status):
50    return (status & 0x80) != 0;
51
52def signum(status):
53    return (status & 0x7f);
54
55# List of signals that indicate that we should retry the test rather
56# than consider it failed.
57retry_signals = (signal.SIGTERM, signal.SIGKILL, signal.SIGINT,
58                 signal.SIGQUIT, signal.SIGHUP)
59
60# regular expressions of lines to ignore when diffing outputs
61output_ignore_regexes = (
62    '^command line:',		# for stdout file
63    '^M5 compiled ',		# for stderr file
64    '^M5 started ',		# for stderr file
65    '^M5 executing on ',	# for stderr file
66    '^Simulation complete at',	# for stderr file
67    '^Listening for',		# for stderr file
68    'listening for remote gdb',	# for stderr file
69    )
70
71output_ignore_args = ' '.join(["-I '"+s+"'" for s in output_ignore_regexes])
72
73output_ignore_args += ' --exclude=stats.txt --exclude=outdiff'
74
75def run_test(target, source, env):
76    """Check output from running test.
77
78    Targets are as follows:
79    target[0] : status
80
81    Sources are:
82    source[0] : M5 binary
83    source[1] : tests/run.py script
84    source[2] : reference stats file
85
86    """
87    # make sure target files are all gone
88    for t in target:
89        if os.path.exists(t.abspath):
90            env.Execute(Delete(t.abspath))
91
92    tgt_dir = os.path.dirname(str(target[0]))
93
94    # Base command for running test.  We mess around with indirectly
95    # referring to files via SOURCES and TARGETS so that scons can mess
96    # with paths all it wants to and we still get the right files.
97    cmd = '${SOURCES[0]} -d %s -re ${SOURCES[1]} %s' % (tgt_dir, tgt_dir)
98
99    # Prefix test run with batch job submission command if appropriate.
100    # Batch command also supports timeout arg (in seconds, not minutes).
101    timeout = 15 * 60 # used to be a param, probably should be again
102    if env['BATCH']:
103        cmd = '%s -t %d %s' % (env['BATCH_CMD'], timeout, cmd)
104
105    status = env.Execute(env.subst(cmd, target=target, source=source))
106    if status == 0:
107        # M5 terminated normally.
108        # Run diff on output & ref directories to find differences.
109        # Exclude the stats file since we will use diff-out on that.
110        outdiff = os.path.join(tgt_dir, 'outdiff')
111        diffcmd = 'diff -ubr %s ${SOURCES[2].dir} %s > %s' \
112                  % (output_ignore_args, tgt_dir, outdiff)
113        env.Execute(env.subst(diffcmd, target=target, source=source))
114        print "===== Output differences ====="
115        print contents(outdiff)
116        # Run diff-out on stats.txt file
117        statsdiff = os.path.join(tgt_dir, 'statsdiff')
118        diffcmd = '$DIFFOUT ${SOURCES[2]} %s > %s' \
119                  % (os.path.join(tgt_dir, 'stats.txt'), statsdiff)
120        diffcmd = env.subst(diffcmd, target=target, source=source)
121        status = env.Execute(diffcmd, strfunction=None)
122        print "===== Statistics differences ====="
123        print contents(statsdiff)
124
125    else: # m5 exit status != 0
126        # M5 did not terminate properly, so no need to check the output
127        if signaled(status):
128            print 'M5 terminated with signal', signum(status)
129            if signum(status) in retry_signals:
130                # Consider the test incomplete; don't create a 'status' output.
131                # Hand the return status to scons and let scons decide what
132                # to do about it (typically terminate unless run with -k).
133                return status
134        else:
135            print 'M5 exited with non-zero status', status
136        # complete but failed execution (call to exit() with non-zero
137        # status, SIGABORT due to assertion failure, etc.)... fall through
138        # and generate FAILED status as if output comparison had failed
139
140    # Generate status file contents based on exit status of m5 or diff-out
141    if status == 0:
142        status_str = "passed."
143    else:
144        status_str = "FAILED!"
145    f = file(str(target[0]), 'w')
146    print >>f, tgt_dir, status_str
147    f.close()
148    # done
149    return 0
150
151def run_test_string(target, source, env):
152    return env.subst("Running test in ${TARGETS[0].dir}.",
153                     target=target, source=source)
154
155testAction = env.Action(run_test, run_test_string)
156
157def print_test(target, source, env):
158    print '***** ' + contents(source[0])
159    return 0
160
161printAction = env.Action(print_test, strfunction = None)
162
163# Static vars for update_test:
164# - long-winded message about ignored sources
165ignore_msg = '''
166Note: The following file(s) will not be copied.  New non-standard
167      output files must be copied manually once before update_ref will
168      recognize them as outputs.  Otherwise they are assumed to be
169      inputs and are ignored.
170'''
171# - reference files always needed
172needed_files = set(['simout', 'simerr', 'stats.txt', 'config.ini'])
173# - source files we always want to ignore
174known_ignores = set(['status', 'outdiff', 'statsdiff'])
175
176def update_test(target, source, env):
177    """Update reference test outputs.
178
179    Target is phony.  First two sources are the ref & new stats.txt file
180    files, respectively.  We actually copy everything in the
181    respective directories except the status & diff output files.
182
183    """
184    dest_dir = str(source[0].get_dir())
185    src_dir = str(source[1].get_dir())
186    dest_files = set(os.listdir(dest_dir))
187    src_files = set(os.listdir(src_dir))
188    # Copy all of the required files plus any existing dest files.
189    wanted_files = needed_files | dest_files
190    missing_files = wanted_files - src_files
191    if len(missing_files) > 0:
192        print "  WARNING: the following file(s) are missing " \
193              "and will not be updated:"
194        print "    ", " ,".join(missing_files)
195    copy_files = wanted_files - missing_files
196    warn_ignored_files = (src_files - copy_files) - known_ignores
197    if len(warn_ignored_files) > 0:
198        print ignore_msg,
199        print "       ", ", ".join(warn_ignored_files)
200    for f in copy_files:
201        if f in dest_files:
202            print "  Replacing file", f
203            dest_files.remove(f)
204        else:
205            print "  Creating new file", f
206        copyAction = Copy(os.path.join(dest_dir, f), os.path.join(src_dir, f))
207        copyAction.strfunction = None
208        env.Execute(copyAction)
209    return 0
210
211def update_test_string(target, source, env):
212    return env.subst("Updating ${SOURCES[0].dir} from ${SOURCES[1].dir}",
213                     target=target, source=source)
214
215updateAction = env.Action(update_test, update_test_string)
216
217def test_builder(env, ref_dir):
218    """Define a test."""
219
220    (category, name, _ref, isa, opsys, config) = ref_dir.split('/')
221    assert(_ref == 'ref')
222
223    # target path (where test output goes) is the same except without
224    # the 'ref' component
225    tgt_dir = os.path.join(category, name, isa, opsys, config)
226
227    # prepend file name with tgt_dir
228    def tgt(f):
229        return os.path.join(tgt_dir, f)
230
231    ref_stats = os.path.join(ref_dir, 'stats.txt')
232    new_stats = tgt('stats.txt')
233    status_file = tgt('status')
234
235    env.Command([status_file],
236                [env.M5Binary, 'run.py', ref_stats],
237                testAction)
238
239    # phony target to echo status
240    if env['update_ref']:
241        p = env.Command(tgt('_update'),
242                        [ref_stats, new_stats, status_file],
243                        updateAction)
244    else:
245        p = env.Command(tgt('_print'), [status_file], printAction)
246
247    env.AlwaysBuild(p)
248
249
250# Figure out applicable configs based on build type
251configs = []
252if env['FULL_SYSTEM']:
253    if env['TARGET_ISA'] == 'alpha':
254        configs += ['tsunami-simple-atomic',
255                    'tsunami-simple-timing',
256                    'tsunami-simple-atomic-dual',
257                    'tsunami-simple-timing-dual',
258                    'twosys-tsunami-simple-atomic',
259                    'tsunami-o3', 'tsunami-o3-dual']
260    if env['TARGET_ISA'] == 'sparc':
261        configs += ['t1000-simple-atomic',
262                    't1000-simple-timing']
263
264else:
265    configs += ['simple-atomic', 'simple-timing', 'o3-timing', 'memtest',
266                'simple-atomic-mp', 'simple-timing-mp', 'o3-timing-mp',
267                'inorder-timing']
268
269if env['RUBY']:
270    # Hack for Ruby
271    configs += [c + '-ruby' for c in configs]
272
273cwd = os.getcwd()
274os.chdir(str(Dir('.').srcdir))
275for config in configs:
276    dirs = glob.glob('*/*/ref/%s/*/%s' % (env['TARGET_ISA'], config))
277    for d in dirs:
278        test_builder(env, d)
279os.chdir(cwd)
280