def setup_environment(args, destination):
""" Sets up the environment for the build command.
It sets the required environment variables and execute the given command.
The exec calls will be logged by the 'libear' preloaded library or by the
'wrapper' programs. """
c_compiler = args.cc if 'cc' in args else 'cc'
cxx_compiler = args.cxx if 'cxx' in args else 'c++'
libear_path = None if args.override_compiler or is_preload_disabled(
sys.platform) else build_libear(c_compiler, destination)
environment = dict(os.environ)
environment.update({'INTERCEPT_BUILD_TARGET_DIR': destination})
if not libear_path:
logging.debug('intercept gonna use compiler wrappers')
environment.update(wrapper_environment(args))
environment.update({
'CC': COMPILER_WRAPPER_CC,
'CXX': COMPILER_WRAPPER_CXX
})
elif sys.platform == 'darwin':
logging.debug('intercept gonna preload libear on OSX')
environment.update({
'DYLD_INSERT_LIBRARIES': libear_path,
'DYLD_FORCE_FLAT_NAMESPACE': '1'
})
else:
logging.debug('intercept gonna preload libear on UNIX')
environment.update({'LD_PRELOAD': libear_path})
return environment
def setup_environment(args, destination):
# type: (argparse.Namespace, str) -> Dict[str, str]
""" Sets up the environment for the build command.
In order to capture the sub-commands (executed by the build process),
it needs to prepare the environment. It's either the compiler wrappers
shall be announce as compiler or the intercepting library shall be
announced for the dynamic linker.
:param args: command line arguments
:param destination: directory path for the execution trace files
:return: a prepared set of environment variables. """
use_wrapper = args.override_compiler or is_preload_disabled(sys.platform)
environment = dict(os.environ)
environment.update({'INTERCEPT_BUILD_TARGET_DIR': destination})
if use_wrapper:
environment.update(wrapper_environment(args))
environment.update({
'CC': COMPILER_WRAPPER_CC,
'CXX': COMPILER_WRAPPER_CXX,
})
else:
intercept_library = build_libear(args.cc, destination)
if sys.platform == 'darwin':
environment.update({
'DYLD_INSERT_LIBRARIES': intercept_library,
'DYLD_FORCE_FLAT_NAMESPACE': '1'
})
else:
environment.update({'LD_PRELOAD': intercept_library})
return environment
def setup_environment(args, destination):
# type: (argparse.Namespace, str) -> Dict[str, str]
""" Sets up the environment for the build command.
In order to capture the sub-commands (executed by the build process),
it needs to prepare the environment. It's either the compiler wrappers
shall be announce as compiler or the intercepting library shall be
announced for the dynamic linker.
:param args: command line arguments
:param destination: directory path for the execution trace files
:return: a prepared set of environment variables. """
use_wrapper = args.override_compiler or is_preload_disabled(sys.platform)
environment = dict(os.environ)
environment.update({'INTERCEPT_BUILD_TARGET_DIR': destination})
if use_wrapper:
environment.update(wrapper_environment(args))
environment.update({
'CC': COMPILER_WRAPPER_CC,
'CXX': COMPILER_WRAPPER_CXX,
})
else:
intercept_library = build_libear(args.cc, destination)
if sys.platform == 'darwin':
environment.update({
'DYLD_INSERT_LIBRARIES': intercept_library,
'DYLD_FORCE_FLAT_NAMESPACE': '1'
})
else:
environment.update({'LD_PRELOAD': intercept_library})
return environment
