def check_syntax(self, c_file_name):
"""
Check the "syntax" of the file -- this is an abuse of terminology, since
`fsyntax-only' performs symbol lookup, i.e., if a declaration is missing,
an error is thrown.
"""
cmd = [self.cc, '-fsyntax-only', c_file_name]
common_opts = [
'-Werror=incompatible-pointer-types',
'-Werror=implicit-function-declaration'
]
cmd += common_opts
by_cc_opts = {
CCompilerFacade.GCC: '-Werror=builtin-declaration-mismatch',
CCompilerFacade.Clang: '-Werror=incompatible-library-redeclaration'
}
cmd.append(by_cc_opts[self.cc_family])
cmd += self.original_options()
return execute(CCompilerFacade.ID(),
cmd,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
def generate_constraints(self, unit: Unit, cc_cmd_summary):
"""
Generate constraints for a unit.
"""
cmd = [
PsycheCFacade._GENERATOR, unit.c_file, '-o', unit.cstr_file,
'--cc', self.cc, '--cc-std', cc_cmd_summary.c_version
]
cmd += CCompilerFacade.defined_macros('--cc-D')
cmd += CCompilerFacade.undefined_macros('--cc-U')
cmd += cc_cmd_summary.defined_macros('-cc-D ')
cmd += cc_cmd_summary.undefined_macros('--cc-U ')
cmd += cc_cmd_summary.include_paths('--cc-I ')
maybe_append('--no-typedef', self.no_typedef, cmd)
maybe_append('--no-heuristic', self.no_heuristic, cmd)
if not self.no_stdlib:
cmd.append('-p')
dir_path = pathlib.Path(__file__).parent.parent.absolute()
cmd.append(os.path.join(dir_path, 'libpsychecstd'))
code = execute(PsycheCFacade.ID(), cmd)
if code != 0:
sys.exit(
DiagnosticReporter.fatal(CONSTRAINT_GENERATION_FOR_FILE_FAILED,
unit.c_file,
error=code))
def generate_constraints(self,
unit: Unit,
cc_opts):
"""
Generate constraints for a unit.
"""
cmd = [self.generator,
unit.c_file_path,
'-o', unit.cstr_file_path,
'--cc', self.host_cc,
'--cc-std', cc_opts.c_version]
cmd += CCompilerFacade.predefined_macros('--cc-D')
cmd += CCompilerFacade.undefined_macros('--cc-U')
maybe_append('--no-typedef', self.no_typedef, cmd)
maybe_append('--no-heuristic', self.no_heuristic, cmd)
if not self.no_stdlib:
cmd.append('-p')
cmd.append('libpsychecstd')
ok = execute(PsycheFacade._id, cmd)
if ok != 0:
sys.exit(
DiagnosticReporter.fatal(CONSTRAINT_GENERATION_FOR_FILE_FAILED,
unit.c_file_path))
def execute(self):
"""
Entry point.
"""
trace_op(Driver._id, flatten(self.cnip_opt['host_cc_cmd']))
if not self.cc.is_supported():
sys.exit(DiagnosticReporter.fatal(HOST_C_COMPILER_NOT_FOUND))
cc_cmd = self.cc.parse_command()
if not cc_cmd.out_file_name:
gen_dir = ''
else:
(gen_dir, _) = os.path.split(cc_cmd.out_file_name)
if gen_dir:
gen_dir += '/'
else:
gen_dir = ''
# The adjusted command that is forwarded to the host C compiler is the
# one provided by the user, with input file replaced.
new_cmd = self.cnip_opt['host_cc_cmd']
for c_file_path in cc_cmd.sources:
if not os.path.isfile(c_file_path):
sys.exit(
DiagnosticReporter.fatal(FILE_DOES_NOT_EXIST, c_file_path))
if self.cc.check_syntax(c_file_path) == 0:
# If there are missing declarations in the source, this check
# would've failed. Since it didn't, there's nothing to infer.
continue
unit = make_unit(c_file_path, gen_dir)
self._compile_unit(unit, cc_cmd)
trace_op(
Driver._id,
f'replace {unit.c_file_path} for {unit.cnip_file_path} in command'
)
new_cmd = [
w.replace(unit.c_file_path, unit.cnip_file_path)
for w in new_cmd
]
cmd = [self.cnip_opt['host_cc'], '-x', 'c'] + new_cmd
ok = execute(Driver._id, cmd)
if ok != 0:
sys.exit(
DiagnosticReporter.fatal(HOST_C_COMPILER_FORWARDING_FAILED))
return 0
def preprocess(self, c_file_name, pp_file_name):
"""
Preprocess the file.
"""
cmd = [self.host_cc, '-E', '-x', 'c', c_file_name, '-o', pp_file_name]
cmd += CCompilerFacade.predefined_macros('-D')
cmd += CCompilerFacade.undefined_macros('-U')
ok = execute(CCompilerFacade._id, cmd)
if ok != 0:
sys.exit(
DiagnosticReporter.fatal(PREPROCESSING_FILE_FAILED,
c_file_name))
def execute(self):
"""
Entry point.
"""
debug(Driver.ID(), flatten(self.cnip_opts['cc_cmd_line']))
if not self.cc.is_supported():
sys.exit(DiagnosticReporter.fatal(HOST_C_COMPILER_NOT_FOUND))
cc_cmd = self.cc.parse_command()
if not cc_cmd.out_file_name:
gen_dir = ''
else:
(gen_dir, _) = os.path.split(cc_cmd.out_file_name)
if gen_dir:
gen_dir += '/'
else:
gen_dir = ''
# The new command that is forwarded to the host C compiler is the
# original one provided by the user, with the input file replaced.
new_cmd = self.cnip_opts['cc_cmd_line']
for c_file in cc_cmd.c_files:
if not os.path.isfile(c_file):
sys.exit(DiagnosticReporter.fatal(FILE_DOES_NOT_EXIST, c_file))
if self.cc.check_syntax(c_file) == 0:
# If there are missing declarations in the source, this check
# would've failed. Since it didn't, there's nothing to infer.
continue
unit = make_unit(c_file, gen_dir)
self._compile_unit(unit, cc_cmd)
debug(Driver.ID(),
f'replace {unit.c_file} for {unit.cnip_file} in command')
new_cmd = [w.replace(unit.c_file, unit.cnip_file) for w in new_cmd]
cmd = [self.cnip_opts['cc']] + new_cmd
code = execute(Driver.ID(), cmd)
if code != 0:
sys.exit(
DiagnosticReporter.fatal(HOST_C_COMPILER_FORWARDING_FAILED))
return 0
def solve_constraints(self, unit: Unit):
"""
Solve the constraint.
"""
cmd = [
PsycheCFacade._SOLVER, '--', '-i', unit.cstr_file, '-o',
unit.cnip_file
]
if not self.no_stdlib:
cmd.append('--match-stdlib=approx')
ok = execute(PsycheCFacade.ID(), cmd)
if ok != 0:
sys.exit(
DiagnosticReporter.fatal(CONSTRAINT_SOLVING_FOR_FILE_FAILED,
unit.c_file))
def preprocess(self, c_file_name, pp_file_name):
"""
Preprocess the file.
"""
cmd = [self.cc,
'-E',
'-x',
'c',
c_file_name,
'-o',
pp_file_name]
cmd += CCompilerFacade.defined_macros('-D')
cmd += CCompilerFacade.undefined_macros('-U')
cmd += self.original_options()
code = execute(CCompilerFacade.ID(), cmd)
if code != 0:
sys.exit(
DiagnosticReporter.fatal(PREPROCESSING_FILE_FAILED,
c_file_name))
