# Copyright (c) 2012 The Native Client Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
-#
-# IMPORTANT NOTE: If you make local mods to this file, you must run:
-# % pnacl/build.sh driver
-# in order for them to take effect in the scons build. This command
-# updates the copy in the toolchain/ tree.
-#
-
-from driver_tools import *
+
+import re
+import subprocess
+
+from driver_tools import AddHostBinarySearchPath, DefaultOutputName, \
+ DefaultPCHOutputName, DriverChain, GetArch, ParseArgs, ParseTriple, \
+ Run, RunDriver, RunWithEnv, TempNameGen, UnrecognizedOption
from driver_env import env
-from driver_log import Log
+from driver_log import DriverOpen, Log
import filetype
+import pathtools
EXTRA_ENV = {
'ALLOW_TRANSLATE': '0', # Allow bitcode translation before linking.
'BIAS_MIPS32' : '-D__MIPS__ -D__mips__ -D__MIPSEL__',
'BIAS_X8632' : '-D__i386__ -D__i386 -D__i686 -D__i686__ -D__pentium4__',
'BIAS_X8664' : '-D__amd64__ -D__amd64 -D__x86_64__ -D__x86_64 -D__core2__',
+ 'BIAS_ARM_NONSFI': '${BIAS_ARM} -D__native_client_nonsfi__',
+ 'BIAS_X8632_NONSFI': '${BIAS_X8632} -D__native_client_nonsfi__',
'FRONTEND_TRIPLE' : 'le32-unknown-nacl',
'OPT_LEVEL' : '', # Default for most tools is 0, but we need to know
# using the -isystem flag.
'ISYSTEM_BUILTIN':
- '${BASE_USR}/local/include ' +
+ '${BASE_USR}/usr/include ' +
'${ISYSTEM_CLANG} ' +
'${ISYSTEM_CXX} ' +
'${BASE_USR}/include ' +
'${BASE_SDK}/include ',
- 'ISYSTEM_CLANG' : '${BASE_LLVM}/lib/clang/3.3/include',
+ 'ISYSTEM_CLANG' : '${BASE_LLVM}/lib/clang/${CLANG_VER}/include',
'ISYSTEM_CXX' :
'${INCLUDE_CXX_HEADERS && STDINCCXX ? ${ISYSTEM_CXX_include_paths}}',
# IS_CXX is set by pnacl-clang and pnacl-clang++ programmatically
'CC' : '${IS_CXX ? ${CLANGXX} : ${CLANG}}',
- 'RUN_CC': '${CC} -emit-llvm ${mode} ${CC_FLAGS} ' +
+ 'RUN_CC': '${CC} ${emit_llvm_flag} ${mode} ${CC_FLAGS} ' +
'${@AddPrefix:-isystem :ISYSTEM} ' +
'-x${typespec} "${infile}" -o ${output}',
}
( '(--pnacl-allow-nexe-build-id)', AddLDFlag),
( '(--pnacl-disable-abi-check)', AddLDFlag),
( '(--pnacl-disable-pass=.+)', AddLLVMPassDisableFlag),
- ( '(--pnacl-allow-dev-intrinsics)', AddLDFlag),
]
GCCPatterns = [
"env.append('ISYSTEM_USER', pathtools.normalize($0))"),
( ('-I', '(.+)'), "env.append('CC_FLAGS', '-I'+pathtools.normalize($0))"),
( '-I(.+)', "env.append('CC_FLAGS', '-I'+pathtools.normalize($0))"),
+ # -I is passed through, so we allow -isysroot and pass it through as well.
+ # However -L is intercepted and interpreted, so it would take more work
+ # to handle -sysroot w/ libraries.
+ ( ('-isysroot', '(.+)'),
+ "env.append('CC_FLAGS', '-isysroot ' + pathtools.normalize($0))"),
+ ( '-isysroot(.+)',
+ "env.append('CC_FLAGS', '-isysroot ' + pathtools.normalize($0))"),
# NOTE: the -iquote =DIR syntax (substitute = with sysroot) doesn't work.
# Clang just says: ignoring nonexistent directory "=DIR"
( ('(-include)','(.+)'), AddCCFlag),
( ('(-include.+)'), AddCCFlag),
+ ( '(--relocatable-pch)', AddCCFlag),
( '(-g)', AddCCFlag),
( '(-W.*)', AddCCFlag),
( '(-w)', AddCCFlag),
def ReadDriverRevision():
- nacl_version = 'unknown'
rev_file = env.getone('DRIVER_REV_FILE')
# Might be an SVN version or a GIT hash (depending on the NaCl src client)
nacl_ver = DriverOpen(rev_file, 'rb').readlines()[0]
# If -arch was given, we are compiling directly to native code
compiling_to_native = GetArch() is not None
- if env.getbool('ALLOW_NATIVE') and not compiling_to_native:
- Log.Fatal("--pnacl-allow-native without -arch is not meaningful.")
+ if env.getbool('ALLOW_NATIVE'):
+ if not compiling_to_native:
+ Log.Fatal("--pnacl-allow-native without -arch is not meaningful.")
+ # For native/mixed links, also bring in the native libgcc and
+ # libcrt_platform to avoid link failure if pre-translated native
+ # code needs functions from it.
+ env.append('LD_FLAGS', env.eval('-L${LIBS_NATIVE_ARCH}'))
+ env.append('STDLIBS', '-lgcc')
+ env.append('STDLIBS', '-lcrt_platform')
+
if not env.get('STDLIB'):
# Default C++ Standard Library.
SetStdLib('libc++')
- inputs = env.get('INPUTS')
+ flags_and_inputs = env.get('INPUTS')
output = env.getone('OUTPUT')
- if len(inputs) == 0:
+ 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.
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':
# 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 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
if output == '':
output = pathtools.normalize('a.out')
- namegen = TempNameGen(inputs, output)
+ namegen = TempNameGen(flags_and_inputs, output)
# Compile all source files (c/c++/ll) to .po
- for i in xrange(0, len(inputs)):
- if IsFlag(inputs[i]):
+ for i in xrange(0, len(flags_and_inputs)):
+ if IsFlag(flags_and_inputs[i]):
continue
- intype = filetype.FileType(inputs[i])
+ intype = filetype.FileType(flags_and_inputs[i])
if filetype.IsSourceType(intype) or intype == 'll':
- inputs[i] = CompileOne(inputs[i], 'po', namegen)
+ 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(inputs)):
- if IsFlag(inputs[i]):
+ for i in xrange(0, len(flags_and_inputs)):
+ if IsFlag(flags_and_inputs[i]):
continue
- intype = filetype.FileType(inputs[i])
+ intype = filetype.FileType(flags_and_inputs[i])
if intype in ('s','S'):
- inputs[i] = CompileOne(inputs[i], 'o', namegen)
+ 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 inputs:
+ for f in flags_and_inputs:
if IsFlag(f):
continue
intype = filetype.FileType(f)
# Fix the user-specified linker arguments
ld_inputs = []
- for f in inputs:
+ for f in flags_and_inputs:
if f.startswith('-Xlinker='):
ld_inputs.append(f[len('-Xlinker='):])
elif f.startswith('-Wl,'):
ld_args = env.get('LD_ARGS')
ld_flags = env.get('LD_FLAGS')
- RunDriver('ld', ld_flags + ld_args + ['-o', output])
+ RunDriver('pnacl-ld', ld_flags + ld_args + ['-o', output])
return 0
def IsFlag(f):
return f.startswith('-')
+def CompileHeaders(header_inputs, output):
+ if output != '' and len(header_inputs) > 1:
+ Log.Fatal('Cannot have -o <out> and compile multiple header files: %s',
+ repr(header_inputs))
+ for f in header_inputs:
+ f_output = output if output else DefaultPCHOutputName(f)
+ RunCC(f, f_output, mode='', emit_llvm_flag='')
+
def CompileOne(infile, output_type, namegen, output = None):
if output is None:
output = namegen.TempNameForInput(infile, output_type)
chain.run()
return output
-def RunCC(infile, output, mode):
+def RunCC(infile, output, mode, emit_llvm_flag='-emit-llvm'):
intype = filetype.FileType(infile)
typespec = filetype.FileTypeToGCCType(intype)
- include_cxx_headers = (env.get('LANGUAGE') == 'CXX') or (intype == 'c++')
+ include_cxx_headers = ((env.get('LANGUAGE') == 'CXX') or
+ (intype in ('c++', 'c++-header')))
env.setbool('INCLUDE_CXX_HEADERS', include_cxx_headers)
if IsStdinInput(infile):
infile = '-'
RunWithEnv("${RUN_CC}", infile=infile, output=output,
- mode=mode,
+ emit_llvm_flag=emit_llvm_flag, mode=mode,
typespec=typespec)
def RunLLVMAS(infile, output):
infile = '-'
# This is a bitcode only step - so get rid of "-arch xxx" which
# might be inherited from the current invocation
- RunDriver('as', [infile, '-o', output], suppress_inherited_arch_args=True)
+ RunDriver('pnacl-as', [infile, '-o', output],
+ suppress_inherited_arch_args=True)
def RunNativeAS(infile, output):
if IsStdinInput(infile):
infile = '-'
- RunDriver('as', [infile, '-o', output])
+ RunDriver('pnacl-as', [infile, '-o', output])
def RunTranslate(infile, output, mode):
if not env.getbool('ALLOW_TRANSLATE'):
infile, '-o', output]
if env.getbool('PIC'):
args += ['-fPIC']
- RunDriver('translate', args)
+ RunDriver('pnacl-translate', args)
def RunOpt(infile, outfile, pass_list):
filtered_list = [pass_option for pass_option in pass_list
if pass_option not in env.get('LLVM_PASSES_TO_DISABLE')]
- RunDriver('opt', filtered_list + [infile, '-o', outfile])
+ RunDriver('pnacl-opt', filtered_list + [infile, '-o', outfile])
def SetupChain(chain, input_type, output_type):
if cur_type == output_type:
return
+ # header file -> pre-process
+ if filetype.IsHeaderType(cur_type) and output_type == 'pp':
+ chain.add(RunCC, 'cpp', mode='-E')
+ cur_type = 'pp'
+ if cur_type == output_type:
+ return
+
# source file -> ll
if (filetype.IsSourceType(cur_type) and
(env.getbool('FORCE_INTERMEDIATE_LL') or output_type == 'll')):
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