1a600266c3
Add a new FreeBSD Process plugin using client/server model. This plugin is based on the one used by NetBSD. It currently supports a subset of functionality for amd64. It is automatically used when spawning lldb-server. It can also be used by lldb client by setting FREEBSD_REMOTE_PLUGIN environment variable (to any value). The code is capable of debugging simple single-threaded programs. It supports general purpose, debug and FPU registers (up to XMM) of amd64, basic signalling, software breakpoints. Adding the support for the plugin involves removing some dead code from FreeBSDPlatform plugin (that was not ever used because CanDebugProcess() returned false), and replacing it with appropriate code from NetBSD platform support. Differential Revision: https://reviews.llvm.org/D88796
139 lines
4.9 KiB
Python
139 lines
4.9 KiB
Python
# -*- Python -*-
|
|
|
|
import os
|
|
import platform
|
|
import re
|
|
import shutil
|
|
import site
|
|
import subprocess
|
|
import sys
|
|
|
|
import lit.formats
|
|
from lit.llvm import llvm_config
|
|
from lit.llvm.subst import FindTool
|
|
from lit.llvm.subst import ToolSubst
|
|
from distutils.spawn import find_executable
|
|
|
|
site.addsitedir(os.path.dirname(__file__))
|
|
from helper import toolchain
|
|
|
|
# name: The name of this test suite.
|
|
config.name = 'lldb-shell'
|
|
|
|
# testFormat: The test format to use to interpret tests.
|
|
config.test_format = lit.formats.ShTest(not llvm_config.use_lit_shell)
|
|
|
|
# suffixes: A list of file extensions to treat as test files. This is overriden
|
|
# by individual lit.local.cfg files in the test subdirectories.
|
|
config.suffixes = ['.test', '.cpp', '.s']
|
|
|
|
# excludes: A list of directories to exclude from the testsuite. The 'Inputs'
|
|
# subdirectories contain auxiliary inputs for various tests in their parent
|
|
# directories.
|
|
config.excludes = ['Inputs', 'CMakeLists.txt', 'README.txt', 'LICENSE.txt']
|
|
|
|
# test_source_root: The root path where tests are located.
|
|
config.test_source_root = os.path.dirname(__file__)
|
|
|
|
# test_exec_root: The root path where tests should be run.
|
|
config.test_exec_root = os.path.join(config.lldb_obj_root, 'test')
|
|
|
|
# Propagate reproducer environment vars.
|
|
if 'LLDB_CAPTURE_REPRODUCER' in os.environ:
|
|
config.environment['LLDB_CAPTURE_REPRODUCER'] = os.environ[
|
|
'LLDB_CAPTURE_REPRODUCER']
|
|
|
|
# Support running the test suite under the lldb-repro wrapper. This makes it
|
|
# possible to capture a test suite run and then rerun all the test from the
|
|
# just captured reproducer.
|
|
lldb_repro_mode = lit_config.params.get('lldb-run-with-repro', None)
|
|
if lldb_repro_mode:
|
|
config.available_features.add('lldb-repro')
|
|
lit_config.note("Running Shell tests in {} mode.".format(lldb_repro_mode))
|
|
toolchain.use_lldb_repro_substitutions(config, lldb_repro_mode)
|
|
|
|
llvm_config.use_default_substitutions()
|
|
toolchain.use_lldb_substitutions(config)
|
|
toolchain.use_support_substitutions(config)
|
|
|
|
if re.match(r'^arm(hf.*-linux)|(.*-linux-gnuabihf)', config.target_triple):
|
|
config.available_features.add("armhf-linux")
|
|
|
|
def calculate_arch_features(arch_string):
|
|
# This will add a feature such as x86, arm, mips, etc for each built
|
|
# target
|
|
features = []
|
|
for arch in arch_string.split():
|
|
features.append(arch.lower())
|
|
return features
|
|
|
|
# Run llvm-config and add automatically add features for whether we have
|
|
# assertions enabled, whether we are in debug mode, and what targets we
|
|
# are built for.
|
|
llvm_config.feature_config(
|
|
[('--assertion-mode', {'ON': 'asserts'}),
|
|
('--build-mode', {'DEBUG': 'debug'}),
|
|
('--targets-built', calculate_arch_features)
|
|
])
|
|
|
|
# Clean the module caches in the test build directory. This is necessary in an
|
|
# incremental build whenever clang changes underneath, so doing it once per
|
|
# lit.py invocation is close enough.
|
|
for cachedir in [config.clang_module_cache, config.lldb_module_cache]:
|
|
if os.path.isdir(cachedir):
|
|
print("Deleting module cache at %s."%cachedir)
|
|
shutil.rmtree(cachedir)
|
|
|
|
# Set a default per-test timeout of 10 minutes. Setting a timeout per test
|
|
# requires that killProcessAndChildren() is supported on the platform and
|
|
# lit complains if the value is set but it is not supported.
|
|
supported, errormsg = lit_config.maxIndividualTestTimeIsSupported
|
|
if supported:
|
|
lit_config.maxIndividualTestTime = 600
|
|
else:
|
|
lit_config.warning("Could not set a default per-test timeout. " + errormsg)
|
|
|
|
|
|
# If running tests natively, check for CPU features needed for some tests.
|
|
|
|
if 'native' in config.available_features:
|
|
cpuid_exe = lit.util.which('lit-cpuid', config.lldb_tools_dir)
|
|
if cpuid_exe is None:
|
|
lit_config.warning("lit-cpuid not found, tests requiring CPU extensions will be skipped")
|
|
else:
|
|
out, err, exitcode = lit.util.executeCommand([cpuid_exe])
|
|
if exitcode == 0:
|
|
for x in out.split():
|
|
config.available_features.add('native-cpu-%s' % x)
|
|
else:
|
|
lit_config.warning("lit-cpuid failed: %s" % err)
|
|
|
|
if config.lldb_enable_python:
|
|
config.available_features.add('python')
|
|
|
|
if config.lldb_enable_lua:
|
|
config.available_features.add('lua')
|
|
|
|
if config.lldb_enable_lzma:
|
|
config.available_features.add('lzma')
|
|
|
|
if find_executable('xz') != None:
|
|
config.available_features.add('xz')
|
|
|
|
# NetBSD permits setting dbregs either if one is root
|
|
# or if user_set_dbregs is enabled
|
|
can_set_dbregs = True
|
|
if platform.system() == 'NetBSD' and os.geteuid() != 0:
|
|
try:
|
|
output = subprocess.check_output(["/sbin/sysctl", "-n",
|
|
"security.models.extensions.user_set_dbregs"]).decode().strip()
|
|
if output != "1":
|
|
can_set_dbregs = False
|
|
except subprocess.CalledProcessError:
|
|
can_set_dbregs = False
|
|
if can_set_dbregs:
|
|
config.available_features.add('dbregs-set')
|
|
|
|
# pass control variable through
|
|
llvm_config.with_system_environment('FREEBSD_REMOTE_PLUGIN')
|