def main(argv):
env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, PrepPatterns)
inputs = env.get('INPUTS')
output = env.getone('OUTPUT')
if len(inputs) != 1:
Log.Fatal('Can only have one input')
f_input = inputs[0]
# Allow in-place file changes if output isn't specified..
if output != '':
f_output = output
else:
f_output = f_input
if env.getbool('DISABLE_FINALIZE') or filetype.IsPNaClBitcode(f_input):
# Just copy the input file to the output file.
if f_input != f_output:
shutil.copyfile(f_input, f_output)
return 0
opt_flags = ['-disable-opt', '-strip', '-strip-metadata',
'--bitcode-format=pnacl', f_input, '-o', f_output]
# Transform the file, and convert it to a PNaCl bitcode file.
driver_tools.RunDriver('opt', opt_flags)
return 0
def main(argv):
env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, PrepPatterns)
inputs = env.get('INPUTS')
output = env.getone('OUTPUT')
if len(inputs) != 1:
Log.Fatal('Can only have one input')
f_input = inputs[0]
# Allow in-place file changes if output isn't specified..
if output != '':
f_output = output
else:
f_output = f_input
if env.getbool('DISABLE_FINALIZE'):
# Just copy the input file to the output file.
if f_input != f_output:
shutil.copyfile(f_input, f_output)
return 0
# Transform the file, and convert it to a PNaCl bitcode file.
driver_tools.RunWithEnv(' '.join(['${RUN_OPT}', '--bitcode-format=pnacl']),
input=inputs[0],
output=f_output)
return 0
def main(argv):
env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, PATTERNS)
inputs = env.get('INPUTS')
if len(inputs) == 0:
Log.Fatal("No input files given")
for infile in inputs:
driver_tools.CheckPathLength(infile)
env.push()
env.set('input', infile)
# For frozen PNaCl bitcode, use 'llvm-nm -bitcode-format=pnacl'. For all
# other formats, use the binutils nm with our gold plugin.
# Update: llvm-nm -bitcode-format=pnacl is currently disabled.
if filetype.IsPNaClBitcode(infile):
Log.Fatal(
'nm on finalized bitcode is currently disabled.\n'
'See: https://code.google.com/p/nativeclient/issues/detail?id=3993'
)
else:
env.set('TOOLNAME', '${NM}')
env.append('FLAGS', '--plugin=${GOLD_PLUGIN_SO}')
driver_tools.Run('"${TOOLNAME}" ${FLAGS} ${input}')
env.pop()
# only reached in case of no errors
return 0
def main(argv):
env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, PATTERNS)
inputs = env.get('INPUTS')
if len(inputs) == 0:
Log.Fatal("No input files given")
for infile in inputs:
env.push()
env.set('input', infile)
# For frozen PNaCl bitcode, use 'llvm-nm -bitcode-format=pnacl'. For all
# other formats, use the binutils nm with our gold plugin.
if filetype.IsPNaClBitcode(infile):
env.set('TOOLNAME', '${LLVM_NM}')
env.append('FLAGS', '-bitcode-format=pnacl')
else:
env.set('TOOLNAME', '${NM}')
env.append('FLAGS', '--plugin=${GOLD_PLUGIN_SO}')
driver_tools.Run('"${TOOLNAME}" ${FLAGS} ${input}')
env.pop()
# only reached in case of no errors
return 0
def main(argv):
env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, PATTERNS)
inputs = env.get('INPUTS')
if len(inputs) == 0:
Log.Fatal("No input files given")
for infile in inputs:
driver_tools.CheckPathLength(infile)
env.push()
env.set('input', infile)
if filetype.IsLLVMBitcode(infile):
# Hack to support newlib build.
# Newlib determines whether the toolchain supports .init_array, etc., by
# compiling a small test and looking for a specific section tidbit using
# "readelf -S". Since pnacl compiles to bitcode, readelf isn't available.
# (there is a line: "if ${READELF} -S conftest | grep -e INIT_ARRAY"
# in newlib's configure file).
# TODO(sehr): we may want to implement a whole readelf on bitcode.
flags = env.get('FLAGS')
if len(flags) == 1 and flags[0] == '-S':
print('INIT_ARRAY')
return 0
Log.Fatal('Cannot handle pnacl-readelf %s' % str(argv))
return 1
driver_tools.Run('"${READELF}" ${FLAGS} ${input}')
env.pop()
# only reached in case of no errors
return 0
def main(argv):
env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, StripPatterns)
inputs = env.get('INPUTS')
output = env.getone('OUTPUT')
if len(inputs) > 1 and output != '':
Log.Fatal('Cannot have -o with multiple inputs')
if '--info' in env.get('STRIP_FLAGS'):
code, _, _ = driver_tools.Run('${STRIP} ${STRIP_FLAGS}')
return code
for f in inputs:
if output != '':
f_output = output
else:
f_output = f
if driver_tools.IsLLVMBitcode(f):
driver_tools.RunWithEnv('${RUN_OPT}', input=f, output=f_output)
elif driver_tools.IsELF(f) or driver_tools.IsNativeArchive(f):
driver_tools.RunWithEnv('${RUN_STRIP}', input=f, output=f_output)
elif driver_tools.IsBitcodeArchive(f):
# The strip tool supports native archives, but it does not support the
# LLVM gold plugin so cannot handle bitcode. There is also no bitcode
# tool like opt that support archives.
Log.Fatal('%s: strip does not support bitcode archives',
pathtools.touser(f))
else:
Log.Fatal('%s: File is neither ELF, nor bitcode',
pathtools.touser(f))
return 0
def main(argv):
env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, DISPatterns)
inputs = env.get('INPUTS')
output = env.getone('OUTPUT')
if len(inputs) == 0:
Log.Fatal("No input files given")
if len(inputs) > 1 and output != '':
Log.Fatal("Cannot have -o with multiple inputs")
for infile in inputs:
env.push()
env.set('input', infile)
env.set('output', output)
# When we output to stdout, set redirect_stdout and set log_stdout
# to False to bypass the driver's line-by-line handling of stdout
# which is extremely slow when you have a lot of output
if (filetype.IsLLVMBitcode(infile) or filetype.IsPNaClBitcode(infile)):
bitcodetype = 'PNaCl' if filetype.IsPNaClBitcode(
infile) else 'LLVM'
format = bitcodetype.lower()
if env.has('FILE_TYPE'):
sys.stdout.write('%s: %s bitcode\n' % (infile, bitcodetype))
continue
env.append('FLAGS', '-bitcode-format=' + format)
if output == '':
# LLVM by default outputs to a file if -o is missing
# Let's instead output to stdout
env.set('output', '-')
env.append('FLAGS', '-f')
driver_tools.Run('${LLVM_DIS} ${FLAGS} ${input} -o ${output}')
elif filetype.IsELF(infile):
if env.has('FILE_TYPE'):
sys.stdout.write('%s: ELF\n' % infile)
continue
flags = env.get('FLAGS')
if len(flags) == 0:
env.append('FLAGS', '-d')
if output == '':
# objdump to stdout
driver_tools.Run('"${OBJDUMP}" ${FLAGS} ${input}')
else:
# objdump always outputs to stdout, and doesn't recognize -o
# Let's add this feature to be consistent.
fp = DriverOpen(output, 'w')
driver_tools.Run('${OBJDUMP} ${FLAGS} ${input}',
redirect_stdout=fp)
DriverClose(fp)
else:
Log.Fatal('Unknown file type')
env.pop()
# only reached in case of no errors
return 0
def main(argv):
env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, PATTERNS)
args = env.get('ARGS')
input = pathtools.normalize(args[-1])
if filetype.IsPNaClBitcode(input):
env.append('ARGS', '--bitcode-format=pnacl')
driver_tools.Run('"${PNACL_ABICHECK}" ${ARGS}')
return 0
def main(argv):
env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, PATTERNS)
driver_tools.Run(
'"${LLVM_OPT}" ${ARGS} ' +
'${DISABLE_SIMPLIFY_LIBCALLS ? -disable-simplify-libcalls} ' +
'${HAVE_OUTPUT ? -o ${OUTPUT}}')
# only reached in case of no errors
return 0
def main(argv):
env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, PATTERNS)
driver_tools.Run(
'"${LLVM_OPT}" ${ARGS} ' +
'${DISABLE_SIMPLIFY_LIBCALLS ? -disable-simplify-libcalls} ' +
'${HAVE_OUTPUT ? -o ${OUTPUT}} ' + '${INPUT}')
# Opt is the only tool that will modify a file in-place. If this happens we
# need to clear the filetype cache so future invocations of the type checking
# routines will re-check the file.
if env.getone('INPUT') == env.getone('OUTPUT'):
filetype.ClearFileTypeCaches()
# only reached in case of no errors
return 0
def main(argv):
if len(argv) == 0:
print get_help(argv)
return 1
env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, PATTERNS)
# Note: --plugin must come after the command flags, but before the filename.
# (definitely confirmed that it cannot go before the command)
# for now assume command is just the very first args
args = env.get('ARGS')
command = args.pop(0)
env.set('COMMAND', command)
env.set('ARGS', *args)
driver_tools.Run('"${AR}" ${COMMAND} --plugin=${GOLD_PLUGIN_SO} ${ARGS}')
# only reached in case of no errors
return 0
def main(argv):
env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, PrepPatterns)
inputs = env.get('INPUTS')
output = env.getone('OUTPUT')
if len(inputs) != 1:
Log.Fatal('Can only have one input')
f_input = inputs[0]
# Allow in-place file changes if output isn't specified.
if output != '':
f_output = output
else:
f_output = f_input
Compress(f_input, f_output)
return 0
def main(argv):
env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, ASPatterns)
arch = driver_tools.GetArch()
inputs = env.get('INPUTS')
output = env.getone('OUTPUT')
for path in inputs + [output]:
driver_tools.CheckPathLength(path)
num_inputs = len(inputs)
if num_inputs > 1:
Log.Fatal('Expecting exactly one input file')
elif num_inputs == 1:
the_input = inputs[0]
else:
# stdin
the_input = '-'
if arch:
output_type = 'o'
else:
output_type = 'po'
if output == '':
output = 'a.out'
env.push()
env.set('input', the_input)
env.set('output', output)
if output_type == 'po':
# .ll to .po
driver_tools.Run("${RUN_LLVM_AS}")
else:
# .s to .o
driver_tools.Run("${RUN_LLVM_MC}")
env.pop()
# only reached in case of no errors
return 0
def main(argv):
env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, PrepPatterns)
inputs = env.get('INPUTS')
output = env.getone('OUTPUT')
for path in inputs + [output]:
driver_tools.CheckPathLength(path)
if len(inputs) != 1:
Log.Fatal('Can only have one input')
f_input = inputs[0]
# Allow in-place file changes if output isn't specified..
if output != '':
f_output = output
else:
f_output = f_input
if env.getbool('DISABLE_FINALIZE') or filetype.IsPNaClBitcode(f_input):
# Just copy the input file to the output file.
if f_input != f_output:
shutil.copyfile(f_input, f_output)
return 0
opt_flags = [
'-disable-opt', '-strip-metadata', '-strip-module-flags',
'--bitcode-format=pnacl', f_input, '-o', f_output
]
if env.getbool('DISABLE_STRIP_SYMS'):
opt_flags += ['-strip-debug']
else:
opt_flags += ['-strip']
# Transform the file, and convert it to a PNaCl bitcode file.
driver_tools.RunDriver('pnacl-opt', opt_flags)
# Compress the result if requested.
if env.getbool('COMPRESS'):
driver_tools.RunDriver('pnacl-compress', [f_output])
return 0
def main(argv):
DumpCommand("@incoming", argv)
Env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, ARG_PATTERNS)
output = Env.getone('OUTPUT')
if output == '':
Log.Fatal('No output specified. Use -o to specify output')
if Env.getone('ARCH') == '':
Log.Fatal('No arch specified')
mode = Env.getone('MODE')
if mode == 'shared':
BuildSharedLib()
elif mode == 'dynamic':
BuildDynamicExecutable()
elif mode == 'static':
BuildStaticExecutable()
else:
Log.Fatal('You must specify at least one of -static, -shared, -dynamic')
return 0
def main(argv):
env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, TranslatorPatterns)
driver_tools.GetArch(required=True)
inputs = env.get('INPUTS')
output = env.getone('OUTPUT')
if len(inputs) == 0:
Log.Fatal("No input files")
if output == '':
Log.Fatal("Please specify output file with -o")
# Find the bitcode file on the command line.
bcfiles = [
f for f in inputs
if not ldtools.IsFlag(f) and (filetype.IsPNaClBitcode(
f) or filetype.IsLLVMBitcode(f) or filetype.FileType(f) == 'll')
]
if len(bcfiles) > 1:
Log.Fatal('Expecting at most 1 bitcode file')
elif len(bcfiles) == 1:
bcfile = bcfiles[0]
else:
bcfile = None
if not env.getbool('SPLIT_MODULE'):
try:
env.set('SPLIT_MODULE', str(min(4, multiprocessing.cpu_count())))
except NotImplementedError:
env.set('SPLIT_MODULE', '2')
elif int(env.getone('SPLIT_MODULE')) < 1:
Log.Fatal('Value given for -split-module must be > 0')
if (env.getbool('ALLOW_LLVM_BITCODE_INPUT')
or env.getone('ARCH') == 'X8632_LINUX'
or env.getbool('USE_EMULATOR')):
# When llvm input is allowed, the pexe may not be ABI-stable, so do not
# split it. For now also do not support threading non-SFI baremetal mode.
# Non-ABI-stable pexes may have symbol naming and visibility issues that the
# current splitting scheme doesn't account for.
# If the link would require a non-standard command line, do not split the
# modules because the sandboxed linker doesn't support that combination.
# The x86->arm emulator is very flaky when threading is used, so don't
# do module splitting when using it.
env.set('SPLIT_MODULE', '1')
else:
modules = env.getone('SPLIT_MODULE')
if modules != '1':
env.append('LLC_FLAGS_EXTRA', '-split-module=' + modules)
env.append('LD_FLAGS', '-split-module=' + modules)
if not env.getbool('SANDBOXED') and env.getbool('STREAM_BITCODE'):
# Do not set -streaming-bitcode for sandboxed mode, because it is already
# in the default command line.
env.append('LLC_FLAGS_EXTRA', '-streaming-bitcode')
# If there's a bitcode file, translate it now.
tng = driver_tools.TempNameGen(inputs + bcfiles, output)
output_type = env.getone('OUTPUT_TYPE')
if bcfile:
sfile = None
if output_type == 's':
sfile = output
ofile = None
if output_type == 'o':
ofile = output
elif output_type != 's':
ofile = tng.TempNameForInput(bcfile, 'o')
if sfile:
RunLLC(bcfile, sfile, outfiletype='asm')
if ofile:
RunAS(sfile, ofile)
else:
RunLLC(bcfile, ofile, outfiletype='obj')
else:
ofile = None
# If we've been told to stop after translation, stop now.
if output_type in ('o', 's'):
return 0
# Replace the bitcode file with __BITCODE__ in the input list
if bcfile:
inputs = ListReplace(inputs, bcfile, '__BITCODE__')
env.set('INPUTS', *inputs)
if int(env.getone('SPLIT_MODULE')) > 1:
modules = int(env.getone('SPLIT_MODULE'))
for i in range(1, modules):
filename = ofile + '.module%d' % i
TempFiles.add(filename)
env.append('INPUTS', filename)
if env.getone('ARCH') == 'X8632_LINUX':
RunHostLD(ofile, output)
else:
RunLD(ofile, output)
return 0
def main(argv):
env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, TranslatorPatterns)
if env.getbool('SHARED'):
env.set('PIC', '1')
if env.getbool('SHARED') and env.getbool('STATIC'):
Log.Fatal('Cannot mix -static and -shared')
driver_tools.GetArch(required=True)
inputs = env.get('INPUTS')
output = env.getone('OUTPUT')
if len(inputs) == 0:
Log.Fatal("No input files")
if output == '':
Log.Fatal("Please specify output file with -o")
# Find the bitcode file on the command line.
bcfiles = [
f for f in inputs if driver_tools.IsPNaClBitcode(f)
or driver_tools.IsLLVMBitcode(f) or driver_tools.FileType(f) == 'll'
]
if len(bcfiles) > 1:
Log.Fatal('Expecting at most 1 bitcode file')
elif len(bcfiles) == 1:
bcfile = bcfiles[0]
else:
bcfile = None
# If there's a bitcode file, translate it now.
tng = driver_tools.TempNameGen(inputs + bcfiles, output)
output_type = env.getone('OUTPUT_TYPE')
metadata = None
if bcfile:
sfile = None
if output_type == 's':
sfile = output
elif env.getbool('FORCE_INTERMEDIATE_S'):
sfile = tng.TempNameForInput(bcfile, 's')
ofile = None
if output_type == 'o':
ofile = output
elif output_type != 's':
ofile = tng.TempNameForInput(bcfile, 'o')
if sfile:
RunLLC(bcfile, sfile, filetype='asm')
if ofile:
RunAS(sfile, ofile)
else:
RunLLC(bcfile, ofile, filetype='obj')
else:
ofile = None
# If we've been told to stop after translation, stop now.
if output_type in ('o', 's'):
return 0
# Replace the bitcode file with __BITCODE__ in the input list
if bcfile:
inputs = ListReplace(inputs, bcfile, '__BITCODE__')
env.set('INPUTS', *inputs)
# Get bitcode type and metadata
if bcfile:
# Until we stabilize the ABI for shared libraries,
# assume that pnacl-translate only handles pexes
# to avoid a dependency on bitcode metadata.
assert not env.getbool('SHARED')
bctype = driver_tools.GetBitcodeType(bcfile, True)
metadata = driver_tools.GetBitcodeMetadata(bcfile, True)
# Determine the output type, in this order of precedence:
# 1) Output type can be specified on command-line (-S, -c, -shared, -static)
# 2) If bitcode file given, use its output type. (pso->so, pexe->nexe, po->o)
# 3) Otherwise, assume nexe output.
if env.getbool('SHARED'):
output_type = 'so'
elif env.getbool('STATIC'):
output_type = 'nexe'
elif bcfile:
DefaultOutputTypes = {
'pso': 'so',
'pexe': 'nexe',
'po': 'o',
}
output_type = DefaultOutputTypes[bctype]
else:
output_type = 'nexe'
# If the bitcode is of type "object", no linking is required.
if output_type == 'o':
# Copy ofile to output
Log.Info('Copying %s to %s' % (ofile, output))
shutil.copy(pathtools.tosys(ofile), pathtools.tosys(output))
return 0
if bcfile:
ApplyBitcodeConfig(metadata, bctype)
# NOTE: we intentionally delay setting STATIC here to give user choices
# preference but we should think about dropping the support for
# the -static, -shared flags in the translator and have everything
# be determined by bctype
if metadata is None:
env.set('STATIC', '1')
elif len(metadata['NeedsLibrary']) == 0 and not env.getbool('SHARED'):
env.set('STATIC', '1')
assert output_type in ('so', 'nexe')
RunLD(ofile, output)
return 0
def main(argv):
env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, TranslatorPatterns)
driver_tools.GetArch(required=True)
inputs = env.get('INPUTS')
output = env.getone('OUTPUT')
if len(inputs) == 0:
Log.Fatal("No input files")
if output == '':
Log.Fatal("Please specify output file with -o")
# Find the bitcode file on the command line.
bcfiles = [
f for f in inputs
if not ldtools.IsFlag(f) and (filetype.IsPNaClBitcode(
f) or filetype.IsLLVMBitcode(f) or filetype.FileType(f) == 'll')
]
if len(bcfiles) > 1:
Log.Fatal('Expecting at most 1 bitcode file')
elif len(bcfiles) == 1:
bcfile = bcfiles[0]
else:
bcfile = None
# If there's a bitcode file, translate it now.
tng = driver_tools.TempNameGen(inputs + bcfiles, output)
output_type = env.getone('OUTPUT_TYPE')
if bcfile:
sfile = None
if output_type == 's':
sfile = output
ofile = None
if output_type == 'o':
ofile = output
elif output_type != 's':
ofile = tng.TempNameForInput(bcfile, 'o')
if sfile:
RunLLC(bcfile, sfile, outfiletype='asm')
if ofile:
RunAS(sfile, ofile)
else:
RunLLC(bcfile, ofile, outfiletype='obj')
else:
ofile = None
# If we've been told to stop after translation, stop now.
if output_type in ('o', 's'):
return 0
# Replace the bitcode file with __BITCODE__ in the input list
if bcfile:
inputs = ListReplace(inputs, bcfile, '__BITCODE__')
env.set('INPUTS', *inputs)
if env.getone('ARCH') == 'LINUX_X8632':
RunHostLD(ofile, output)
else:
RunLD(ofile, output)
return 0
def main(argv):
env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, TranslatorPatterns)
if env.getbool('SHARED'):
Log.Fatal('Not handling SHARED')
driver_tools.GetArch(required = True)
inputs = env.get('INPUTS')
output = env.getone('OUTPUT')
if len(inputs) == 0:
Log.Fatal("No input files")
if output == '':
Log.Fatal("Please specify output file with -o")
# Find the bitcode file on the command line.
bcfiles = [f for f in inputs
if not ldtools.IsFlag(f) and
(filetype.IsPNaClBitcode(f)
or filetype.IsLLVMBitcode(f)
or filetype.FileType(f) == 'll')]
if len(bcfiles) > 1:
Log.Fatal('Expecting at most 1 bitcode file')
elif len(bcfiles) == 1:
bcfile = bcfiles[0]
else:
bcfile = None
# If there's a bitcode file, translate it now.
tng = driver_tools.TempNameGen(inputs + bcfiles, output)
output_type = env.getone('OUTPUT_TYPE')
if bcfile:
sfile = None
if output_type == 's':
sfile = output
elif env.getbool('FORCE_INTERMEDIATE_S'):
sfile = tng.TempNameForInput(bcfile, 's')
ofile = None
if output_type == 'o':
ofile = output
elif output_type != 's':
ofile = tng.TempNameForInput(bcfile, 'o')
if sfile:
RunLLC(bcfile, sfile, outfiletype='asm')
if ofile:
RunAS(sfile, ofile)
else:
RunLLC(bcfile, ofile, outfiletype='obj')
else:
ofile = None
# If we've been told to stop after translation, stop now.
if output_type in ('o','s'):
return 0
# Replace the bitcode file with __BITCODE__ in the input list
if bcfile:
inputs = ListReplace(inputs, bcfile, '__BITCODE__')
env.set('INPUTS', *inputs)
# Determine the output type, in this order of precedence:
# 1) Output type can be specified on command-line (-S, -c, -static)
# -S and -c are handled above by the check that output_type in ('o', 's').
# 2) Otherwise, assume static nexe output.
if env.getbool('STATIC'):
output_type = 'nexe'
else:
# Until we stabilize the ABI for shared libraries,
# assume that pnacl-translate only handles pexes -> nexes,
# to avoid a dependency on bitcode metadata.
output_type = 'nexe'
env.set('STATIC', '1')
assert output_type in ('so','nexe')
if env.getone('ARCH') == 'LINUX_X8632':
RunHostLD(ofile, output)
else:
RunLD(ofile, output)
return 0
def main(argv):
driver_env.env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, PATTERNS)
driver_tools.Run('"${PNACL_ABICHECK}" ${ARGS}')
return 0
def main(argv):
env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, TranslatorPatterns)
driver_tools.GetArch(required = True)
SetUpArch()
SetUpLinkOptions()
# Now commit to whether or not Subzero is used.
use_sz = env.getbool('USE_SZ') and not env.getbool('SZ_UNSUPPORTED')
inputs = env.get('INPUTS')
output = env.getone('OUTPUT')
if len(inputs) == 0:
Log.Fatal("No input files")
for path in inputs:
driver_tools.CheckPathLength(path)
if output == '':
Log.Fatal("Please specify output file with -o")
# Find the bitcode file on the command line.
bcfiles = [f for f in inputs
if not ldtools.IsFlag(f) and
(filetype.IsPNaClBitcode(f)
or filetype.IsLLVMBitcode(f)
or filetype.FileType(f) == 'll')]
if len(bcfiles) > 1:
Log.Fatal('Expecting at most 1 bitcode file')
elif len(bcfiles) == 1:
bcfile = bcfiles[0]
else:
bcfile = None
if ((env.getbool('ALLOW_LLVM_BITCODE_INPUT') or
env.getone('TARGET_OS') != 'nacl' or
env.getbool('USE_EMULATOR')) and
env.getone('SPLIT_MODULE') == 'auto'):
# When llvm input is allowed, the pexe may not be ABI-stable, so do not
# split it. Non-ABI-stable pexes may have symbol naming and visibility
# issues that the current splitting scheme doesn't account for.
#
# For now, also do not enable multi-threaded translation when TARGET_OS !=
# 'nacl', since in these cases we will be using the host toolchain's
# linker.
#
# The x86->arm emulator is very flaky when threading is used, so don't
# do module splitting when using it.
env.set('SPLIT_MODULE', 'seq')
# Do not set -streaming-bitcode for sandboxed mode, because it is already
# in the default command line.
if not env.getbool('SANDBOXED') and env.getbool('STREAM_BITCODE'):
env.append('LLC_FLAGS_EXTRA', '-streaming-bitcode')
if env.getone('SPLIT_MODULE') == 'seq':
env.set('SPLIT_MODULE', '1')
env.set('SZ_THREADS', '0')
elif env.getone('SPLIT_MODULE') == 'auto':
try:
num_modules = min(4, multiprocessing.cpu_count())
except NotImplementedError:
num_modules = 2
env.set('SPLIT_MODULE', str(num_modules))
env.set('SZ_THREADS', str(num_modules))
else:
num_modules = int(env.getone('SPLIT_MODULE'))
if num_modules < 1:
Log.Fatal('Value given for -split-module must be > 0')
env.set('SPLIT_MODULE', str(num_modules))
env.set('SZ_THREADS', str(num_modules))
modules = env.getone('SPLIT_MODULE')
module_sched = env.getone('SPLIT_MODULE_SCHED')
sz_threads = env.getone('SZ_THREADS')
# TODO(dschuff,jvoung): No need to specify -split-module=X since the IPC
# already has a parameter for the number of threads and modules.
env.append('LLC_FLAGS_EXTRA', '-split-module=' + modules)
env.append('LD_FLAGS', '-split-module=' + ('1' if use_sz else modules))
env.append('LLC_FLAGS_EXTRA', '-split-module-sched=' + module_sched)
# In sandboxed mode, the IPC already has a parameter for the number
# of threads, so no need to specify that again via argv[].
if not env.getbool('SANDBOXED'):
env.append('SZ_FLAGS_EXTRA', '--threads=' + sz_threads)
# If there's a bitcode file, translate it now.
tng = driver_tools.TempNameGen(inputs + bcfiles, output)
output_type = env.getone('OUTPUT_TYPE')
if bcfile:
sfile = None
if output_type == 's':
sfile = output
ofile = None
if output_type == 'o':
ofile = output
elif output_type != 's':
ofile = tng.TempNameForInput(bcfile, 'o')
if sfile:
RunCompiler(bcfile, sfile, outfiletype='asm', use_sz=use_sz)
if ofile:
RunAS(sfile, ofile)
else:
RunCompiler(bcfile, ofile, outfiletype='obj', use_sz=use_sz)
else:
ofile = None
# If we've been told to stop after translation, stop now.
if output_type in ('o','s'):
return 0
if use_sz:
# Reset SPLIT_MODULE to 1 to fall back to normal linking behavior.
env.set('SPLIT_MODULE', '1')
# Replace the bitcode file with __BITCODE__ in the input list
if bcfile:
inputs = ListReplace(inputs, bcfile, '__BITCODE__')
env.set('INPUTS', *inputs)
if int(env.getone('SPLIT_MODULE')) > 1:
modules = int(env.getone('SPLIT_MODULE'))
for i in range(1, modules):
filename = ofile + '.module%d' % i
TempFiles.add(filename)
env.append('INPUTS', filename)
if env.getone('TARGET_OS') != 'nacl':
RunHostLD(ofile, output)
else:
RunLD(ofile, output)
return 0
