def RunDriver(module_name, args, suppress_inherited_arch_args=False):
"""
RunDriver() is used to invoke "driver" tools, e.g.
those prefixed with "pnacl-"
It automatically appends some additional flags to the invocation
which were inherited from the current invocation.
Those flags were preserved by ParseArgs
"""
if isinstance(args, str):
args = shell.split(env.eval(args))
script = env.eval('${DRIVER_BIN}/%s' % module_name)
script = shell.unescape(script)
inherited_driver_args = env.get('INHERITED_DRIVER_ARGS')
if suppress_inherited_arch_args:
inherited_driver_args = FilterOutArchArgs(inherited_driver_args)
script = pathtools.tosys(script)
cmd = [script] + args + inherited_driver_args
Log.Info('Driver invocation: %s', repr(cmd))
module = __import__(module_name)
# Save the environment, reset the environment, run
# the driver module, and then restore the environment.
env.push()
env.reset()
DriverMain(module, cmd)
env.pop()
def RunDriver(invocation, args, suppress_inherited_arch_args=False):
"""
RunDriver() is used to invoke "driver" tools, e.g.
those prefixed with "pnacl-"
It automatically appends some additional flags to the invocation
which were inherited from the current invocation.
Those flags were preserved by ParseArgs
"""
if isinstance(args, str):
args = shell.split(env.eval(args))
module_name = 'pnacl-%s' % invocation
script = env.eval('${DRIVER_BIN}/%s' % module_name)
script = shell.unescape(script)
inherited_driver_args = env.get('INHERITED_DRIVER_ARGS')
if suppress_inherited_arch_args:
inherited_driver_args = FilterOutArchArgs(inherited_driver_args)
script = pathtools.tosys(script)
cmd = [script] + args + inherited_driver_args
Log.Info('Driver invocation: %s', repr(cmd))
module = __import__(module_name)
# Save the environment, reset the environment, run
# the driver module, and then restore the environment.
env.push()
env.reset()
DriverMain(module, cmd)
env.pop()
def Run(args,
errexit=True,
redirect_stdout=None,
redirect_stderr=None):
""" Run: Run a command.
Returns: return_code, stdout, stderr
Run() is used to invoke "other" tools, e.g.
those NOT prefixed with "pnacl-"
stdout and stderr only contain meaningful data if
redirect_{stdout,stderr} == subprocess.PIPE
Run will terminate the program upon failure unless errexit == False
TODO(robertm): errexit == True has not been tested and needs more work
redirect_stdout and redirect_stderr are passed straight
to subprocess.Popen
"""
result_stdout = None
result_stderr = None
if isinstance(args, str):
args = shell.split(env.eval(args))
args = [pathtools.tosys(args[0])] + args[1:]
Log.Info('Running: ' + StringifyCommand(args))
if env.getbool('DRY_RUN'):
if redirect_stderr or redirect_stdout:
# TODO(pdox): Prevent this from happening, so that
# dry-run is more useful.
Log.Fatal("Unhandled dry-run case.")
return 0, None, None
try:
# If we have too long of a cmdline on windows, running it would fail.
# Attempt to use a file with the command line options instead in that case.
if ArgsTooLongForWindows(args):
actual_args = ConvertArgsToFile(args)
Log.Info('Wrote long commandline to file for Windows: ' +
StringifyCommand(actual_args))
else:
actual_args = args
p = subprocess.Popen(actual_args,
stdout=redirect_stdout,
stderr=redirect_stderr)
result_stdout, result_stderr = p.communicate()
except Exception, e:
msg = '%s\nCommand was: %s' % (str(e), StringifyCommand(args))
print msg
DriverExit(1)
def Run(args,
errexit=True,
redirect_stdout=None,
redirect_stderr=None):
""" Run: Run a command.
Returns: return_code, stdout, stderr
Run() is used to invoke "other" tools, e.g.
those NOT prefixed with "pnacl-"
stdout and stderr only contain meaningful data if
redirect_{stdout,stderr} == subprocess.PIPE
Run will terminate the program upon failure unless errexit == False
TODO(robertm): errexit == True has not been tested and needs more work
redirect_stdout and redirect_stderr are passed straight
to subprocess.Popen
"""
result_stdout = None
result_stderr = None
if isinstance(args, str):
args = shell.split(env.eval(args))
args = [pathtools.tosys(args[0])] + args[1:]
Log.Info('Running: ' + StringifyCommand(args))
if env.getbool('DRY_RUN'):
if redirect_stderr or redirect_stdout:
# TODO(pdox): Prevent this from happening, so that
# dry-run is more useful.
Log.Fatal("Unhandled dry-run case.")
return 0, None, None
try:
# If we have too long of a cmdline on windows, running it would fail.
# Attempt to use a file with the command line options instead in that case.
if ArgsTooLongForWindows(args):
actual_args = ConvertArgsToFile(args)
Log.Info('Wrote long commandline to file for Windows: ' +
StringifyCommand(actual_args))
else:
actual_args = args
p = subprocess.Popen(actual_args,
stdout=redirect_stdout,
stderr=redirect_stderr)
result_stdout, result_stderr = p.communicate()
except Exception, e:
msg = '%s\nCommand was: %s' % (str(e), StringifyCommand(args))
print(msg)
DriverExit(1)
def main(argv):
env.update(EXTRA_ENV)
CheckSetup()
ParseArgs(argv, CustomPatterns + GCCPatterns)
# "configure", especially when run as part of a toolchain bootstrap
# process, will invoke gcc with various diagnostic options and
# parse the output. In these cases we do not alter the incoming
# commandline. It is also important to not emit spurious messages.
if env.getbool('DIAGNOSTIC'):
if env.getbool('SHOW_VERSION'):
code, stdout, stderr = Run(env.get('CC') + env.get('CC_FLAGS'),
redirect_stdout=subprocess.PIPE)
out = stdout.split('\n')
nacl_version = ReadDriverRevision()
out[0] += ' nacl-version=%s' % nacl_version
stdout = '\n'.join(out)
print stdout,
else:
Run(env.get('CC') + env.get('CC_FLAGS'))
return 0
unmatched = env.get('UNMATCHED')
if len(unmatched) > 0:
UnrecognizedOption(*unmatched)
# If -arch was given, we are compiling directly to native code
compiling_to_native = GetArch() is not None
if env.getbool('ALLOW_NATIVE'):
if not compiling_to_native:
Log.Fatal("--pnacl-allow-native without -arch is not meaningful.")
# For native/mixed links, also bring in the native libgcc and
# libcrt_platform to avoid link failure if pre-translated native
# code needs functions from it.
env.append('LD_FLAGS', env.eval('-L${LIBS_NATIVE_ARCH}'))
env.append('STDLIBS', '-lgcc')
env.append('STDLIBS', '-lcrt_platform')
flags_and_inputs = env.get('INPUTS')
output = env.getone('OUTPUT')
if len(flags_and_inputs) == 0:
if env.getbool('VERBOSE'):
# -v can be invoked without any inputs. Runs the original
# command without modifying the commandline for this case.
Run(env.get('CC') + env.get('CC_FLAGS'))
return 0
else:
Log.Fatal('No input files')
gcc_mode = env.getone('GCC_MODE')
output_type = DriverOutputTypes(gcc_mode, compiling_to_native)
# INPUTS consists of actual input files and a subset of flags like -Wl,<foo>.
# Create a version with just the files.
inputs = [f for f in flags_and_inputs if not IsFlag(f)]
header_inputs = [f for f in inputs
if filetype.IsHeaderType(filetype.FileType(f))]
# Handle PCH case specially (but only for a limited sense...)
if header_inputs and gcc_mode != '-E':
# We only handle doing pre-compiled headers for all inputs or not at
# all at the moment. This is because DriverOutputTypes only assumes
# one type of output, depending on the "gcc_mode" flag. When mixing
# header inputs w/ non-header inputs, some of the outputs will be
# pch while others will be output_type. We would also need to modify
# the input->output chaining for the needs_linking case.
if len(header_inputs) != len(inputs):
Log.Fatal('mixed compiling of headers and source not supported')
CompileHeaders(header_inputs, output)
return 0
needs_linking = (gcc_mode == '')
if env.getbool('NEED_DASH_E') and gcc_mode != '-E':
Log.Fatal("-E or -x required when input is from stdin")
# There are multiple input files and no linking is being done.
# There will be multiple outputs. Handle this case separately.
if not needs_linking:
if output != '' and len(inputs) > 1:
Log.Fatal('Cannot have -o with -c, -S, or -E and multiple inputs: %s',
repr(inputs))
for f in inputs:
intype = filetype.FileType(f)
if not (filetype.IsSourceType(intype) or filetype.IsHeaderType(intype)):
if ((output_type == 'pp' and intype != 'S') or
(output_type == 'll') or
(output_type == 'po' and intype != 'll') or
(output_type == 's' and intype not in ('ll','po','S')) or
(output_type == 'o' and intype not in ('ll','po','S','s'))):
Log.Fatal("%s: Unexpected type of file for '%s'",
pathtools.touser(f), gcc_mode)
if output == '':
f_output = DefaultOutputName(f, output_type)
else:
f_output = output
namegen = TempNameGen([f], f_output)
CompileOne(f, output_type, namegen, f_output)
return 0
# Linking case
assert(needs_linking)
assert(output_type in ('pso','so','pexe','nexe'))
if output == '':
output = pathtools.normalize('a.out')
namegen = TempNameGen(flags_and_inputs, output)
# Compile all source files (c/c++/ll) to .po
for i in xrange(0, len(flags_and_inputs)):
if IsFlag(flags_and_inputs[i]):
continue
intype = filetype.FileType(flags_and_inputs[i])
if filetype.IsSourceType(intype) or intype == 'll':
flags_and_inputs[i] = CompileOne(flags_and_inputs[i], 'po', namegen)
# Compile all .s/.S to .o
if env.getbool('ALLOW_NATIVE'):
for i in xrange(0, len(flags_and_inputs)):
if IsFlag(flags_and_inputs[i]):
continue
intype = filetype.FileType(flags_and_inputs[i])
if intype in ('s','S'):
flags_and_inputs[i] = CompileOne(flags_and_inputs[i], 'o', namegen)
# We should only be left with .po and .o and libraries
for f in flags_and_inputs:
if IsFlag(f):
continue
intype = filetype.FileType(f)
if intype in ('o','s','S') or filetype.IsNativeArchive(f):
if not env.getbool('ALLOW_NATIVE'):
Log.Fatal('%s: Native object files not allowed in link. '
'Use --pnacl-allow-native to override.', pathtools.touser(f))
assert(intype in ('po','o','so','ldscript') or filetype.IsArchive(f))
# Fix the user-specified linker arguments
ld_inputs = []
for f in flags_and_inputs:
if f.startswith('-Xlinker='):
ld_inputs.append(f[len('-Xlinker='):])
elif f.startswith('-Wl,'):
ld_inputs += f[len('-Wl,'):].split(',')
else:
ld_inputs.append(f)
if env.getbool('ALLOW_NATIVE'):
ld_inputs.append('--pnacl-allow-native')
# Invoke the linker
env.set('ld_inputs', *ld_inputs)
ld_args = env.get('LD_ARGS')
ld_flags = env.get('LD_FLAGS')
RunDriver('pnacl-ld', ld_flags + ld_args + ['-o', output])
return 0
def main(argv):
env.update(EXTRA_ENV)
CheckSetup()
ParseArgs(argv, CustomPatterns + GCCPatterns)
# "configure", especially when run as part of a toolchain bootstrap
# process, will invoke gcc with various diagnostic options and
# parse the output. In these cases we do not alter the incoming
# commandline. It is also important to not emit spurious messages.
if env.getbool('DIAGNOSTIC'):
if env.getbool('SHOW_VERSION'):
code, stdout, stderr = Run(env.get('CC') + env.get('CC_FLAGS'),
redirect_stdout=subprocess.PIPE)
out = stdout.split('\n')
nacl_version = ReadDriverRevision()
out[0] += ' nacl-version=%s' % nacl_version
stdout = '\n'.join(out)
print stdout,
else:
Run(env.get('CC') + env.get('CC_FLAGS'))
return 0
unmatched = env.get('UNMATCHED')
if len(unmatched) > 0:
UnrecognizedOption(*unmatched)
# If -arch was given, we are compiling directly to native code
compiling_to_native = GetArch() is not None
if env.getbool('ALLOW_NATIVE'):
if not compiling_to_native:
Log.Fatal("--pnacl-allow-native without -arch is not meaningful.")
# For native/mixed links, also bring in the native libgcc and
# libcrt_platform to avoid link failure if pre-translated native
# code needs functions from it.
env.append('LD_FLAGS', env.eval('-L${LIBS_NATIVE_ARCH}'))
env.append('STDLIBS', '-lgcc')
env.append('STDLIBS', '-lcrt_platform')
flags_and_inputs = env.get('INPUTS')
output = env.getone('OUTPUT')
if len(flags_and_inputs) == 0:
if env.getbool('VERBOSE'):
# -v can be invoked without any inputs. Runs the original
# command without modifying the commandline for this case.
Run(env.get('CC') + env.get('CC_FLAGS'))
return 0
else:
Log.Fatal('No input files')
gcc_mode = env.getone('GCC_MODE')
output_type = DriverOutputTypes(gcc_mode, compiling_to_native)
# '-shared' modifies the output from the linker and should be considered when
# determining the final output type.
if env.getbool('SHARED'):
if compiling_to_native:
Log.Fatal('Building native shared libraries not supported')
if gcc_mode != '':
Log.Fatal('-c, -S, and -E are disallowed with -shared')
output_type = 'pll'
# INPUTS consists of actual input files and a subset of flags like -Wl,<foo>.
# Create a version with just the files.
inputs = [f for f in flags_and_inputs if not IsFlag(f)]
header_inputs = [
f for f in inputs if filetype.IsHeaderType(filetype.FileType(f))
]
# Handle PCH case specially (but only for a limited sense...)
if header_inputs and gcc_mode != '-E':
# We only handle doing pre-compiled headers for all inputs or not at
# all at the moment. This is because DriverOutputTypes only assumes
# one type of output, depending on the "gcc_mode" flag. When mixing
# header inputs w/ non-header inputs, some of the outputs will be
# pch while others will be output_type. We would also need to modify
# the input->output chaining for the needs_linking case.
if len(header_inputs) != len(inputs):
Log.Fatal('mixed compiling of headers and source not supported')
CompileHeaders(header_inputs, output)
return 0
needs_linking = (gcc_mode == '')
if env.getbool('NEED_DASH_E') and gcc_mode != '-E':
Log.Fatal("-E or -x required when input is from stdin")
# There are multiple input files and no linking is being done.
# There will be multiple outputs. Handle this case separately.
if not needs_linking:
if output != '' and len(inputs) > 1:
Log.Fatal(
'Cannot have -o with -c, -S, or -E and multiple inputs: %s',
repr(inputs))
for f in inputs:
intype = filetype.FileType(f)
if not (filetype.IsSourceType(intype)
or filetype.IsHeaderType(intype)):
if ((output_type == 'pp' and intype != 'S')
or (output_type == 'll')
or (output_type == 'po' and intype != 'll') or
(output_type == 's' and intype not in ('ll', 'po', 'S'))
or (output_type == 'o'
and intype not in ('ll', 'po', 'S', 's'))):
Log.Fatal("%s: Unexpected type of file for '%s'",
pathtools.touser(f), gcc_mode)
if output == '':
f_output = DefaultOutputName(f, output_type)
else:
f_output = output
namegen = TempNameGen([f], f_output)
CompileOne(f, output_type, namegen, f_output)
return 0
# Linking case
assert (needs_linking)
assert (output_type in ('pll', 'pexe', 'nexe'))
if output == '':
output = pathtools.normalize('a.out')
namegen = TempNameGen(flags_and_inputs, output)
# Compile all source files (c/c++/ll) to .po
for i in xrange(0, len(flags_and_inputs)):
if IsFlag(flags_and_inputs[i]):
continue
intype = filetype.FileType(flags_and_inputs[i])
if filetype.IsSourceType(intype) or intype == 'll':
flags_and_inputs[i] = CompileOne(flags_and_inputs[i], 'po',
namegen)
# Compile all .s/.S to .o
if env.getbool('ALLOW_NATIVE'):
for i in xrange(0, len(flags_and_inputs)):
if IsFlag(flags_and_inputs[i]):
continue
intype = filetype.FileType(flags_and_inputs[i])
if intype in ('s', 'S'):
flags_and_inputs[i] = CompileOne(flags_and_inputs[i], 'o',
namegen)
# We should only be left with .po and .o and libraries
for f in flags_and_inputs:
if IsFlag(f):
continue
intype = filetype.FileType(f)
if intype in ('o', 's', 'S') or filetype.IsNativeArchive(f):
if not env.getbool('ALLOW_NATIVE'):
Log.Fatal(
'%s: Native object files not allowed in link. '
'Use --pnacl-allow-native to override.',
pathtools.touser(f))
assert (intype in ('po', 'o', 'so', 'ldscript')
or filetype.IsArchive(f))
# Fix the user-specified linker arguments
ld_inputs = []
for f in flags_and_inputs:
if f.startswith('-Xlinker='):
ld_inputs.append(f[len('-Xlinker='):])
elif f.startswith('-Wl,'):
ld_inputs += f[len('-Wl,'):].split(',')
else:
ld_inputs.append(f)
if env.getbool('ALLOW_NATIVE'):
ld_inputs.append('--pnacl-allow-native')
# Invoke the linker
env.set('ld_inputs', *ld_inputs)
ld_args = env.get('LD_ARGS')
ld_flags = env.get('LD_FLAGS')
RunDriver('pnacl-ld', ld_flags + ld_args + ['-o', output])
return 0
