1# -*- Python -*-
2
3import os
4import platform
5import re
6import shutil
7import site
8import subprocess
9import sys
10
11import lit.formats
12from lit.llvm import llvm_config
13from lit.llvm.subst import FindTool
14from lit.llvm.subst import ToolSubst
15from distutils.spawn import find_executable
16
17site.addsitedir(os.path.dirname(__file__))
18from helper import toolchain
19
20# name: The name of this test suite.
21config.name = 'lldb-shell'
22
23# testFormat: The test format to use to interpret tests.
24config.test_format = lit.formats.ShTest(not llvm_config.use_lit_shell)
25
26# suffixes: A list of file extensions to treat as test files. This is overriden
27# by individual lit.local.cfg files in the test subdirectories.
28config.suffixes = ['.test', '.cpp', '.s']
29
30# excludes: A list of directories to exclude from the testsuite. The 'Inputs'
31# subdirectories contain auxiliary inputs for various tests in their parent
32# directories.
33config.excludes = ['Inputs', 'CMakeLists.txt', 'README.txt', 'LICENSE.txt']
34
35# test_source_root: The root path where tests are located.
36config.test_source_root = os.path.dirname(__file__)
37
38# test_exec_root: The root path where tests should be run.
39config.test_exec_root = os.path.join(config.lldb_obj_root, 'test', 'Shell')
40
41# Propagate environment vars.
42llvm_config.with_system_environment([
43    'FREEBSD_LEGACY_PLUGIN',
44    'HOME',
45    'LLDB_CAPTURE_REPRODUCER',
46    'TEMP',
47    'TMP',
48    'XDG_CACHE_HOME',
49])
50
51# Support running the test suite under the lldb-repro wrapper. This makes it
52# possible to capture a test suite run and then rerun all the test from the
53# just captured reproducer.
54lldb_repro_mode = lit_config.params.get('lldb-run-with-repro', None)
55if lldb_repro_mode:
56  config.available_features.add('lldb-repro')
57  lit_config.note("Running Shell tests in {} mode.".format(lldb_repro_mode))
58  toolchain.use_lldb_repro_substitutions(config, lldb_repro_mode)
59
60llvm_config.use_default_substitutions()
61toolchain.use_lldb_substitutions(config)
62toolchain.use_support_substitutions(config)
63
64if re.match(r'^arm(hf.*-linux)|(.*-linux-gnuabihf)', config.target_triple):
65    config.available_features.add("armhf-linux")
66
67def calculate_arch_features(arch_string):
68    # This will add a feature such as x86, arm, mips, etc for each built
69    # target
70    features = []
71    for arch in arch_string.split():
72        features.append(arch.lower())
73    return features
74
75# Run llvm-config and add automatically add features for whether we have
76# assertions enabled, whether we are in debug mode, and what targets we
77# are built for.
78llvm_config.feature_config(
79    [('--assertion-mode', {'ON': 'asserts'}),
80     ('--build-mode', {'DEBUG': 'debug'}),
81     ('--targets-built', calculate_arch_features)
82     ])
83
84# Clean the module caches in the test build directory. This is necessary in an
85# incremental build whenever clang changes underneath, so doing it once per
86# lit.py invocation is close enough.
87for cachedir in [config.clang_module_cache, config.lldb_module_cache]:
88  if os.path.isdir(cachedir):
89     print("Deleting module cache at %s."%cachedir)
90     shutil.rmtree(cachedir)
91
92# Set a default per-test timeout of 10 minutes. Setting a timeout per test
93# requires that killProcessAndChildren() is supported on the platform and
94# lit complains if the value is set but it is not supported.
95supported, errormsg = lit_config.maxIndividualTestTimeIsSupported
96if supported:
97    lit_config.maxIndividualTestTime = 600
98else:
99    lit_config.warning("Could not set a default per-test timeout. " + errormsg)
100
101
102# If running tests natively, check for CPU features needed for some tests.
103
104if 'native' in config.available_features:
105    cpuid_exe = lit.util.which('lit-cpuid', config.lldb_tools_dir)
106    if cpuid_exe is None:
107        lit_config.warning("lit-cpuid not found, tests requiring CPU extensions will be skipped")
108    else:
109        out, err, exitcode = lit.util.executeCommand([cpuid_exe])
110        if exitcode == 0:
111            for x in out.split():
112                config.available_features.add('native-cpu-%s' % x)
113        else:
114            lit_config.warning("lit-cpuid failed: %s" % err)
115
116if config.lldb_enable_python:
117    config.available_features.add('python')
118
119if config.lldb_enable_lua:
120    config.available_features.add('lua')
121
122if config.lldb_enable_lzma:
123    config.available_features.add('lzma')
124
125if find_executable('xz') != None:
126    config.available_features.add('xz')
127
128if config.lldb_system_debugserver:
129    config.available_features.add('system-debugserver')
130
131# NetBSD permits setting dbregs either if one is root
132# or if user_set_dbregs is enabled
133can_set_dbregs = True
134if platform.system() == 'NetBSD' and os.geteuid() != 0:
135    try:
136        output = subprocess.check_output(["/sbin/sysctl", "-n",
137          "security.models.extensions.user_set_dbregs"]).decode().strip()
138        if output != "1":
139            can_set_dbregs = False
140    except subprocess.CalledProcessError:
141        can_set_dbregs = False
142if can_set_dbregs:
143    config.available_features.add('dbregs-set')
144