1# Copyright (c) 2015 ARM Limited
2# All rights reserved.
3#
4# The license below extends only to copyright in the software and shall
5# not be construed as granting a license to any other intellectual
6# property including but not limited to intellectual property relating
7# to a hardware implementation of the functionality of the software
8# licensed hereunder. You may use the software subject to the license
9# terms below provided that you ensure that this notice is replicated
10# unmodified and in its entirety in all distributions of the software,
11# modified or unmodified, in source code or in binary form.
12#
13# Redistribution and use in source and binary forms, with or without
14# modification, are permitted provided that the following conditions are
15# met: redistributions of source code must retain the above copyright
16# notice, this list of conditions and the following disclaimer;
17# redistributions in binary form must reproduce the above copyright
18# notice, this list of conditions and the following disclaimer in the
19# documentation and/or other materials provided with the distribution;
20# neither the name of the copyright holders nor the names of its
21# contributors may be used to endorse or promote products derived from
22# this software without specific prior written permission.
23#
24# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
27# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
28# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
29# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
30# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
31# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
32# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
34# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35#
36# Authors: Andreas Sandberg
37
| 1# Copyright (c) 2015 ARM Limited
2# All rights reserved.
3#
4# The license below extends only to copyright in the software and shall
5# not be construed as granting a license to any other intellectual
6# property including but not limited to intellectual property relating
7# to a hardware implementation of the functionality of the software
8# licensed hereunder. You may use the software subject to the license
9# terms below provided that you ensure that this notice is replicated
10# unmodified and in its entirety in all distributions of the software,
11# modified or unmodified, in source code or in binary form.
12#
13# Redistribution and use in source and binary forms, with or without
14# modification, are permitted provided that the following conditions are
15# met: redistributions of source code must retain the above copyright
16# notice, this list of conditions and the following disclaimer;
17# redistributions in binary form must reproduce the above copyright
18# notice, this list of conditions and the following disclaimer in the
19# documentation and/or other materials provided with the distribution;
20# neither the name of the copyright holders nor the names of its
21# contributors may be used to endorse or promote products derived from
22# this software without specific prior written permission.
23#
24# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
27# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
28# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
29# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
30# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
31# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
32# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
34# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35#
36# Authors: Andreas Sandberg
37
|
| 38from __future__ import print_function
39
|
38from multiprocessing import Process
39import sys
40import os
41
42import m5
43
44_exit_normal = (
45 "target called exit()",
46 "m5_exit instruction encountered",
47 )
48
49_exit_limit = (
50 "simulate() limit reached",
51 )
52
53_exitcode_done = 0
54_exitcode_fail = 1
55_exitcode_checkpoint = 42
56
57
58def _run_step(name, restore=None, interval=0.5):
59 """
60 Instantiate (optionally from a checkpoint if restore is set to the
61 checkpoitn name) the system and run for interval seconds of
62 simulated time. At the end of the simulation interval, create a
63 checkpoint and exit.
64
65 As this function is intended to run in its own process using the
66 multiprocessing framework, the exit is a true call to exit which
67 terminates the process. Exit codes are used to pass information to
68 the parent.
69 """
70 if restore is not None:
71 m5.instantiate(restore)
72 else:
73 m5.instantiate()
74
75 e = m5.simulate(m5.ticks.fromSeconds(interval))
76 cause = e.getCause()
77 if cause in _exit_limit:
78 m5.checkpoint(name)
79 sys.exit(_exitcode_checkpoint)
80 elif cause in _exit_normal:
81 sys.exit(_exitcode_done)
82 else:
| 40from multiprocessing import Process
41import sys
42import os
43
44import m5
45
46_exit_normal = (
47 "target called exit()",
48 "m5_exit instruction encountered",
49 )
50
51_exit_limit = (
52 "simulate() limit reached",
53 )
54
55_exitcode_done = 0
56_exitcode_fail = 1
57_exitcode_checkpoint = 42
58
59
60def _run_step(name, restore=None, interval=0.5):
61 """
62 Instantiate (optionally from a checkpoint if restore is set to the
63 checkpoitn name) the system and run for interval seconds of
64 simulated time. At the end of the simulation interval, create a
65 checkpoint and exit.
66
67 As this function is intended to run in its own process using the
68 multiprocessing framework, the exit is a true call to exit which
69 terminates the process. Exit codes are used to pass information to
70 the parent.
71 """
72 if restore is not None:
73 m5.instantiate(restore)
74 else:
75 m5.instantiate()
76
77 e = m5.simulate(m5.ticks.fromSeconds(interval))
78 cause = e.getCause()
79 if cause in _exit_limit:
80 m5.checkpoint(name)
81 sys.exit(_exitcode_checkpoint)
82 elif cause in _exit_normal:
83 sys.exit(_exitcode_done)
84 else:
|
83 print "Test failed: Unknown exit cause: %s" % cause
| 85 print("Test failed: Unknown exit cause: %s" % cause)
|
84 sys.exit(_exitcode_fail)
85
86def run_test(root, interval=0.5, max_checkpoints=5):
87 """
88 Run the simulated system for a fixed amount of time and take a
89 checkpoint, then restore from the same checkpoint and run until
90 the system calls m5 exit.
91 """
92
93 cpt_name = os.path.join(m5.options.outdir, "test.cpt")
94 restore = None
95
96 for cpt_no in range(max_checkpoints):
97 # Create a checkpoint from a separate child process. This enables
98 # us to get back to a (mostly) pristine state and restart
99 # simulation from the checkpoint.
100 p = Process(target=_run_step,
101 args=(cpt_name, ),
102 kwargs={
103 "restore" : restore,
104 "interval" : interval,
105 })
106 p.start()
107
108 # Wait for the child to return
109 p.join()
110
111 # Restore from the checkpoint next iteration
112 restore = cpt_name
113
114 if p.exitcode == _exitcode_done:
| 86 sys.exit(_exitcode_fail)
87
88def run_test(root, interval=0.5, max_checkpoints=5):
89 """
90 Run the simulated system for a fixed amount of time and take a
91 checkpoint, then restore from the same checkpoint and run until
92 the system calls m5 exit.
93 """
94
95 cpt_name = os.path.join(m5.options.outdir, "test.cpt")
96 restore = None
97
98 for cpt_no in range(max_checkpoints):
99 # Create a checkpoint from a separate child process. This enables
100 # us to get back to a (mostly) pristine state and restart
101 # simulation from the checkpoint.
102 p = Process(target=_run_step,
103 args=(cpt_name, ),
104 kwargs={
105 "restore" : restore,
106 "interval" : interval,
107 })
108 p.start()
109
110 # Wait for the child to return
111 p.join()
112
113 # Restore from the checkpoint next iteration
114 restore = cpt_name
115
116 if p.exitcode == _exitcode_done:
|
115 print >> sys.stderr, "Test done."
| 117 print("Test done.", file=sys.stderr)
|
116 sys.exit(0)
117 elif p.exitcode == _exitcode_checkpoint:
118 pass
119 else:
| 118 sys.exit(0)
119 elif p.exitcode == _exitcode_checkpoint:
120 pass
121 else:
|
120 print >> sys.stderr, "Test failed."
| 122 print("Test failed.", file=sys.stderr)
|
121 sys.exit(1)
122
123 # Maximum number of checkpoints reached. Just run full-speed from
124 # now on.
125 m5.instantiate()
126 e = m5.simulate()
127 cause = e.getCause()
128 if cause in _exit_normal:
129 sys.exit(0)
130 else:
| 123 sys.exit(1)
124
125 # Maximum number of checkpoints reached. Just run full-speed from
126 # now on.
127 m5.instantiate()
128 e = m5.simulate()
129 cause = e.getCause()
130 if cause in _exit_normal:
131 sys.exit(0)
132 else:
|
131 print "Test failed: Unknown exit cause: %s" % cause
| 133 print("Test failed: Unknown exit cause: %s" % cause)
|
132 sys.exit(1)
| 134 sys.exit(1)
|