def ArchMerge(filename, must_match):
file_type = filetype.FileType(filename)
if file_type in ('o','so'):
elfheader = elftools.GetELFHeader(filename)
if not elfheader:
Log.Fatal("%s: Cannot read ELF header", filename)
new_arch = elfheader.arch
elif filetype.IsNativeArchive(filename):
new_arch = file_type[len('archive-'):]
else:
Log.Fatal('%s: Unexpected file type in ArchMerge', filename)
existing_arch = GetArch()
if not existing_arch:
SetArch(new_arch)
return True
elif new_arch != existing_arch:
if must_match:
msg = "%s: Incompatible object file (%s != %s)"
logfunc = Log.Fatal
else:
msg = "%s: Skipping incompatible object file (%s != %s)"
logfunc = Log.Warning
logfunc(msg, filename, new_arch, existing_arch)
return False
else: # existing_arch and new_arch == existing_arch
return True
def main(argv):
env.update(EXTRA_ENV)
driver_tools.ParseArgs(argv, StripPatterns)
inputs = env.get('INPUTS')
output = env.getone('OUTPUT')
for path in inputs + [output]:
driver_tools.CheckPathLength(path)
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} ${STRIP_FLAGS}')
return code
for f in inputs:
if output != '':
f_output = output
else:
f_output = f
if filetype.IsPNaClBitcode(f):
# PNaCl-format bitcode has no symbols, i.e. it is already stripped.
if f != f_output:
shutil.copyfile(f, f_output)
elif filetype.IsLLVMBitcode(f):
driver_tools.RunWithEnv('${RUN_OPT}', input=f, output=f_output)
elif filetype.IsELF(f) or filetype.IsNativeArchive(f):
driver_tools.RunWithEnv('${RUN_STRIP}', input=f, output=f_output)
elif filetype.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 SplitLinkLine(inputs):
""" Split the input list into bitcode and native objects (.o, .a)
"""
normal = []
native = []
# Group flags need special handling because they need to go into the right
# list based on the type of the inputs in the group. If the group has both
# native and bitcode files (which is unfortunately the case for
# irt_browser_lib) then the group flags need to go in both lists.
if '--start-group' in inputs:
start_group = inputs.index('--start-group')
# Start with the inputs before the first group
normal, native = SplitLinkLine(inputs[:start_group])
try:
end_group = inputs.index('--end-group')
except ValueError:
Log.Fatal("Found --start-group without matching --end-group")
# Add the contents of the group together with the --{start,end}-group flags
norm_group, native_group = SplitLinkLine(inputs[start_group +
1:end_group])
if len(norm_group) > 0:
normal.extend(['--start-group'] + norm_group + ['--end-group'])
if len(native_group) > 0:
native.extend(['--start-group'] + native_group + ['--end-group'])
# Add the inputs after the first group
norm_last, native_last = SplitLinkLine(inputs[end_group + 1:])
return normal + norm_last, native + native_last
# If no groups, split the inputs based on their type.
for f in inputs:
if ldtools.IsFlag(f):
normal.append(f)
elif filetype.IsNativeArchive(f) or filetype.IsNativeObject(f):
native.append(f)
else:
normal.append(f)
return (normal, native)
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') and not compiling_to_native:
Log.Fatal("--pnacl-allow-native without -arch is not meaningful.")
if not env.get('STDLIB'):
# Default C++ Standard Library.
SetStdLib('libc++')
inputs = env.get('INPUTS')
output = env.getone('OUTPUT')
if len(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)
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:
# Filter out flags
inputs = [f for f in inputs if not IsFlag(f)]
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:
if IsFlag(f):
continue
intype = filetype.FileType(f)
if not filetype.IsSourceType(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(inputs, output)
# Compile all source files (c/c++/ll) to .po
for i in xrange(0, len(inputs)):
if IsFlag(inputs[i]):
continue
intype = filetype.FileType(inputs[i])
if filetype.IsSourceType(intype) or intype == 'll':
inputs[i] = CompileOne(inputs[i], 'po', namegen)
# Compile all .s/.S to .o
if env.getbool('ALLOW_NATIVE'):
for i in xrange(0, len(inputs)):
if IsFlag(inputs[i]):
continue
intype = filetype.FileType(inputs[i])
if intype in ('s', 'S'):
inputs[i] = CompileOne(inputs[i], 'o', namegen)
# We should only be left with .po and .o and libraries
for f in 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 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('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
