#!/usr/bin/env python
import argparse
import os
import platform
import shutil
import signal
import subprocess
import sys
if sys.platform == "win32":
# This module was renamed in Python 3. Make sure to import it using a
# consistent name regardless of python version.
try:
import winreg
except:
import _winreg as winreg
if __name__ != "__main__":
raise RuntimeError("Do not import this script, run it instead")
parser = argparse.ArgumentParser(description="LLDB compilation wrapper")
parser.add_argument(
"--arch",
metavar="arch",
dest="arch",
required=True,
default="host",
choices=["32", "64", "host"],
help="Specify the architecture to target.",
)
parser.add_argument(
"--compiler",
metavar="compiler",
dest="compiler",
required=True,
help="Path to a compiler executable, or one of the values [any, msvc, clang-cl, gcc, clang]",
)
parser.add_argument(
"--libs-dir",
metavar="directory",
dest="libs_dir",
required=False,
action="append",
help="If specified, a path to linked libraries to be passed via -L",
)
parser.add_argument(
"--tools-dir",
metavar="directory",
dest="tools_dir",
required=False,
action="append",
help="If specified, a path to search in addition to PATH when --compiler is not an exact path",
)
parser.add_argument(
"--objc-gnustep-dir",
metavar="directory",
dest="objc_gnustep_dir",
required=False,
help="If specified, a path to GNUstep libobjc2 runtime for use on Windows and Linux",
)
parser.add_argument(
"--objc-gnustep",
dest="objc_gnustep",
action="store_true",
default=False,
help="Include and link GNUstep libobjc2 (Windows and Linux only)",
)
parser.add_argument(
"--sysroot",
metavar="directory",
dest="sysroot",
required=False,
help="If specified, a sysroot to be passed via --sysroot",
)
if sys.platform == "darwin":
parser.add_argument(
"--apple-sdk",
metavar="apple_sdk",
dest="apple_sdk",
default="macosx",
help="Specify the name of the Apple SDK (macosx, macosx.internal, iphoneos, iphoneos.internal, or path to SDK) and use the appropriate tools from that SDK's toolchain.",
)
parser.add_argument(
"--output",
"-o",
dest="output",
metavar="file",
required=False,
default="",
help="Path to output file",
)
parser.add_argument(
"--outdir",
"-d",
dest="outdir",
metavar="directory",
required=False,
help="Directory for output files",
)
parser.add_argument(
"--nodefaultlib",
dest="nodefaultlib",
action="store_true",
default=False,
help="When specified, the resulting image should not link against system libraries or include system headers. Useful when writing cross-targeting tests.",
)
parser.add_argument(
"--opt",
dest="opt",
default="none",
choices=["none", "basic", "lto"],
help="Optimization level",
)
parser.add_argument(
"--mode",
dest="mode",
default="compile-and-link",
choices=["compile", "link", "compile-and-link"],
help="Specifies whether to compile, link, or both",
)
parser.add_argument(
"--noclean",
dest="clean",
action="store_false",
default=True,
help="Dont clean output file before building",
)
parser.add_argument(
"--verbose",
dest="verbose",
action="store_true",
default=False,
help="Print verbose output",
)
parser.add_argument(
"-n",
"--dry-run",
dest="dry",
action="store_true",
default=False,
help="Print the commands that would run, but dont actually run them",
)
parser.add_argument(
"inputs",
metavar="file",
nargs="+",
help="Source file(s) to compile / object file(s) to link",
)
parser.add_argument(
"--std",
metavar="std",
dest="std",
required=False,
help="Specify the C/C++ standard.",
)
args = parser.parse_args(args=sys.argv[1:])
def to_string(b):
"""Return the parameter as type 'str', possibly encoding it.
In Python2, the 'str' type is the same as 'bytes'. In Python3, the
'str' type is (essentially) Python2's 'unicode' type, and 'bytes' is
distinct.
This function is copied from llvm/utils/lit/lit/util.py
"""
if isinstance(b, str):
# In Python2, this branch is taken for types 'str' and 'bytes'.
# In Python3, this branch is taken only for 'str'.
return b
if isinstance(b, bytes):
# In Python2, this branch is never taken ('bytes' is handled as 'str').
# In Python3, this is true only for 'bytes'.
try:
return b.decode("utf-8")
except UnicodeDecodeError:
# If the value is not valid Unicode, return the default
# repr-line encoding.
return str(b)
# By this point, here's what we *don't* have:
#
# - In Python2:
# - 'str' or 'bytes' (1st branch above)
# - In Python3:
# - 'str' (1st branch above)
# - 'bytes' (2nd branch above)
#
# The last type we might expect is the Python2 'unicode' type. There is no
# 'unicode' type in Python3 (all the Python3 cases were already handled). In
# order to get a 'str' object, we need to encode the 'unicode' object.
try:
return b.encode("utf-8")
except AttributeError:
raise TypeError("not sure how to convert %s to %s" % (type(b), str))
def format_text(lines, indent_0, indent_n):
result = " " * indent_0 + lines[0]
for next in lines[1:]:
result = result + "\n{0}{1}".format(" " * indent_n, next)
return result
def print_environment(env):
if env is None:
print(" Inherited")
return
for e in env:
value = env[e]
lines = value.split(os.pathsep)
formatted_value = format_text(lines, 0, 7 + len(e))
print(" {0} = {1}".format(e, formatted_value))
def find_executable(binary_name, search_paths):
# shutil.which will ignore PATH if given a path argument, we want to include it.
search_paths.append(os.environ.get("PATH", ""))
search_path = os.pathsep.join(search_paths)
binary_path = shutil.which(binary_name, path=search_path)
if binary_path is not None:
# So for example, we get '/bin/gcc' instead of '/usr/../bin/gcc'.
binary_path = os.path.normpath(binary_path)
return binary_path
def find_toolchain(compiler, tools_dir):
if compiler == "msvc":
return ("msvc", find_executable("cl", tools_dir))
if compiler == "clang-cl":
return ("clang-cl", find_executable("clang-cl", tools_dir))
if compiler == "gcc":
return ("gcc", find_executable("g++", tools_dir))
if compiler == "clang":
return ("clang", find_executable("clang++", tools_dir))
if compiler == "any":
priorities = []
if sys.platform == "win32":
priorities = ["clang-cl", "msvc", "clang", "gcc"]
else:
priorities = ["clang", "gcc", "clang-cl"]
for toolchain in priorities:
(type, dir) = find_toolchain(toolchain, tools_dir)
if type and dir:
return (type, dir)
# Could not find any toolchain.
return (None, None)
# From here on, assume that |compiler| is a path to a file.
file = os.path.basename(compiler)
name, ext = os.path.splitext(file)
if file.lower() == "cl.exe":
return ("msvc", compiler)
if name == "clang-cl":
return ("clang-cl", compiler)
if name.startswith("clang"):
return ("clang", compiler)
if name.startswith("gcc") or name.startswith("g++"):
return ("gcc", compiler)
if name == "cc" or name == "c++":
return ("generic", compiler)
return ("unknown", compiler)
class Builder(object):
def __init__(self, toolchain_type, args, obj_ext):
self.toolchain_type = toolchain_type
self.inputs = args.inputs
self.arch = args.arch
self.opt = args.opt
self.outdir = args.outdir
self.compiler = args.compiler
self.clean = args.clean
self.output = args.output
self.mode = args.mode
self.nodefaultlib = args.nodefaultlib
self.verbose = args.verbose
self.obj_ext = obj_ext
self.lib_paths = args.libs_dir
self.std = args.std
assert (
not args.objc_gnustep or args.objc_gnustep_dir
), "--objc-gnustep specified without path to libobjc2"
self.objc_gnustep_inc = (
os.path.join(args.objc_gnustep_dir, "include")
if args.objc_gnustep_dir
else None
)
self.objc_gnustep_lib = (
os.path.join(args.objc_gnustep_dir, "lib")
if args.objc_gnustep_dir
else None
)
self.sysroot = args.sysroot
def _exe_file_name(self):
assert self.mode != "compile"
return self.output
def _output_name(self, input, extension, with_executable=False):
basename = os.path.splitext(os.path.basename(input))[0] + extension
if with_executable:
exe_basename = os.path.basename(self._exe_file_name())
basename = exe_basename + "-" + basename
output = os.path.join(self.outdir, basename)
return os.path.normpath(output)
def _obj_file_names(self):
if self.mode == "link":
return self.inputs
if self.mode == "compile-and-link":
# Object file names should factor in both the input file (source)
# name and output file (executable) name, to ensure that two tests
# which share a common source file don't race to write the same
# object file.
return [self._output_name(x, self.obj_ext, True) for x in self.inputs]
if self.mode == "compile" and self.output:
return [self.output]
return [self._output_name(x, self.obj_ext) for x in self.inputs]
def build_commands(self):
commands = []
if self.mode == "compile" or self.mode == "compile-and-link":
for input, output in zip(self.inputs, self._obj_file_names()):
commands.append(self._get_compilation_command(input, output))
if self.mode == "link" or self.mode == "compile-and-link":
commands.append(self._get_link_command())
return commands
class MsvcBuilder(Builder):
def __init__(self, toolchain_type, args):
Builder.__init__(self, toolchain_type, args, ".obj")
if platform.uname().machine.lower() == "arm64":
self.msvc_arch_str = "arm" if self.arch == "32" else "arm64"
else:
self.msvc_arch_str = "x86" if self.arch == "32" else "x64"
if toolchain_type == "msvc":
# Make sure we're using the appropriate toolchain for the desired
# target type.
compiler_parent_dir = os.path.dirname(self.compiler)
selected_target_version = os.path.basename(compiler_parent_dir)
if selected_target_version != self.msvc_arch_str:
host_dir = os.path.dirname(compiler_parent_dir)
self.compiler = os.path.join(host_dir, self.msvc_arch_str, "cl.exe")
if self.verbose:
print(
'Using alternate compiler "{0}" to match selected target.'.format(
self.compiler
)
)
if self.mode == "link" or self.mode == "compile-and-link":
self.linker = (
self._find_linker("link")
if toolchain_type == "msvc"
else self._find_linker("lld-link", args.tools_dir)
)
if not self.linker:
raise ValueError("Unable to find an appropriate linker.")
self.compile_env, self.link_env = self._get_visual_studio_environment()
def _find_linker(self, name, search_paths=[]):
compiler_dir = os.path.dirname(self.compiler)
linker_path = find_executable(name, [compiler_dir] + search_paths)
if linker_path is None:
raise ValueError("Could not find '{}'".format(name))
return linker_path
def _get_vc_install_dir(self):
dir = os.getenv("VCINSTALLDIR", None)
if dir:
if self.verbose:
print("Using %VCINSTALLDIR% {}".format(dir))
return dir
dir = os.getenv("VSINSTALLDIR", None)
if dir:
if self.verbose:
print("Using %VSINSTALLDIR% {}".format(dir))
return os.path.join(dir, "VC")
dir = os.getenv("VS2019INSTALLDIR", None)
if dir:
if self.verbose:
print("Using %VS2019INSTALLDIR% {}".format(dir))
return os.path.join(dir, "VC")
dir = os.getenv("VS2017INSTALLDIR", None)
if dir:
if self.verbose:
print("Using %VS2017INSTALLDIR% {}".format(dir))
return os.path.join(dir, "VC")
dir = os.getenv("VS2015INSTALLDIR", None)
if dir:
if self.verbose:
print("Using %VS2015INSTALLDIR% {}".format(dir))
return os.path.join(dir, "VC")
return None
def _get_vctools_version(self):
ver = os.getenv("VCToolsVersion", None)
if ver:
if self.verbose:
print("Using %VCToolsVersion% {}".format(ver))
return ver
vcinstalldir = self._get_vc_install_dir()
vcinstalldir = os.path.join(vcinstalldir, "Tools", "MSVC")
subdirs = next(os.walk(vcinstalldir))[1]
if not subdirs:
return None
from packaging import version
subdirs.sort(key=lambda x: version.parse(x))
if self.verbose:
full_path = os.path.join(vcinstalldir, subdirs[-1])
print(
"Using VC tools version directory {0} found by directory walk.".format(
full_path
)
)
return subdirs[-1]
def _get_vctools_install_dir(self):
dir = os.getenv("VCToolsInstallDir", None)
if dir:
if self.verbose:
print("Using %VCToolsInstallDir% {}".format(dir))
return dir
vcinstalldir = self._get_vc_install_dir()
if not vcinstalldir:
return None
vctoolsver = self._get_vctools_version()
if not vctoolsver:
return None
result = os.path.join(vcinstalldir, "Tools", "MSVC", vctoolsver)
if not os.path.exists(result):
return None
if self.verbose:
print(
"Using VC tools install dir {} found by directory walk".format(result)
)
return result
def _find_windows_sdk_in_registry_view(self, view):
products_key = None
roots_key = None
installed_options_keys = []
try:
sam = view | winreg.KEY_READ
products_key = winreg.OpenKey(
winreg.HKEY_LOCAL_MACHINE,
r"Software\Microsoft\Windows Kits\Installed Products",
0,
sam,
)
# This is the GUID for the desktop component. If this is present
# then the components required for the Desktop SDK are installed.
# If not it will throw an exception.
winreg.QueryValueEx(products_key, "{5A3D81EC-D870-9ECF-D997-24BDA6644752}")
roots_key = winreg.OpenKey(
winreg.HKEY_LOCAL_MACHINE,
r"Software\Microsoft\Windows Kits\Installed Roots",
0,
sam,
)
root_dir = winreg.QueryValueEx(roots_key, "KitsRoot10")
root_dir = to_string(root_dir[0])
sdk_versions = []
index = 0
while True:
# Installed SDK versions are stored as sub-keys of the
# 'Installed Roots' key. Find all of their names, then sort
# them by version
try:
ver_key = winreg.EnumKey(roots_key, index)
sdk_versions.append(ver_key)
index = index + 1
except WindowsError:
break
if not sdk_versions:
return (None, None)
from packaging import version
sdk_versions.sort(key=lambda x: version.parse(x), reverse=True)
option_value_name = "OptionId.DesktopCPP" + self.msvc_arch_str
for v in sdk_versions:
try:
version_subkey = v + r"\Installed Options"
key = winreg.OpenKey(roots_key, version_subkey)
installed_options_keys.append(key)
(value, value_type) = winreg.QueryValueEx(key, option_value_name)
if value == 1:
# The proper architecture is installed. Return the
# associated paths.
if self.verbose:
print(
"Found Installed Windows SDK v{0} at {1}".format(
v, root_dir
)
)
return (root_dir, v)
except:
continue
except:
return (None, None)
finally:
del products_key
del roots_key
for k in installed_options_keys:
del k
return (None, None)
def _find_windows_sdk_in_registry(self):
# This could be a clang-cl cross-compile. If so, there's no registry
# so just exit.
if sys.platform != "win32":
return (None, None)
if self.verbose:
print("Looking for Windows SDK in 64-bit registry.")
dir, ver = self._find_windows_sdk_in_registry_view(winreg.KEY_WOW64_64KEY)
if not dir or not ver:
if self.verbose:
print("Looking for Windows SDK in 32-bit registry.")
dir, ver = self._find_windows_sdk_in_registry_view(winreg.KEY_WOW64_32KEY)
return (dir, ver)
def _get_winsdk_dir(self):
# If a Windows SDK is specified in the environment, use that. Otherwise
# try to find one in the Windows registry.
dir = os.getenv("WindowsSdkDir", None)
if not dir or not os.path.exists(dir):
return self._find_windows_sdk_in_registry()
ver = os.getenv("WindowsSDKLibVersion", None)
if not ver:
return self._find_windows_sdk_in_registry()
ver = ver.rstrip("\\")
if self.verbose:
print("Using %WindowsSdkDir% {}".format(dir))
print("Using %WindowsSDKLibVersion% {}".format(ver))
return (dir, ver)
def _get_msvc_native_toolchain_dir(self):
assert self.toolchain_type == "msvc"
compiler_dir = os.path.dirname(self.compiler)
target_dir = os.path.dirname(compiler_dir)
host_name = os.path.basename(target_dir)
host_name = host_name[4:].lower()
return os.path.join(target_dir, host_name)
def _get_visual_studio_environment(self):
vctools = self._get_vctools_install_dir()
winsdk, winsdkver = self._get_winsdk_dir()
if not vctools and self.verbose:
print("Unable to find VC tools installation directory.")
if (not winsdk or not winsdkver) and self.verbose:
print("Unable to find Windows SDK directory.")
vcincludes = []
vclibs = []
sdkincludes = []
sdklibs = []
if vctools is not None:
includes = [["ATLMFC", "include"], ["include"]]
libs = [["ATLMFC", "lib"], ["lib"]]
vcincludes = [os.path.join(vctools, *y) for y in includes]
vclibs = [os.path.join(vctools, *y) for y in libs]
if winsdk is not None:
includes = [
["include", winsdkver, "ucrt"],
["include", winsdkver, "shared"],
["include", winsdkver, "um"],
["include", winsdkver, "winrt"],
["include", winsdkver, "cppwinrt"],
]
libs = [["lib", winsdkver, "ucrt"], ["lib", winsdkver, "um"]]
sdkincludes = [os.path.join(winsdk, *y) for y in includes]
sdklibs = [os.path.join(winsdk, *y) for y in libs]
includes = vcincludes + sdkincludes
libs = vclibs + sdklibs
libs = [os.path.join(x, self.msvc_arch_str) for x in libs]
compileenv = None
linkenv = None
defaultenv = {}
if sys.platform == "win32":
defaultenv = {
x: os.environ[x] for x in ["SystemDrive", "SystemRoot", "TMP", "TEMP"]
}
# The directory to mspdbcore.dll needs to be in PATH, but this is
# always in the native toolchain path, not the cross-toolchain
# path. So, for example, if we're using HostX64\x86 then we need
# to add HostX64\x64 to the path, and if we're using HostX86\x64
# then we need to add HostX86\x86 to the path.
if self.toolchain_type == "msvc":
defaultenv["PATH"] = self._get_msvc_native_toolchain_dir()
if includes:
compileenv = {}
compileenv["INCLUDE"] = os.pathsep.join(includes)
compileenv.update(defaultenv)
if libs:
linkenv = {}
linkenv["LIB"] = os.pathsep.join(libs)
linkenv.update(defaultenv)
return (compileenv, linkenv)
def _ilk_file_names(self):
if self.mode == "link":
return []
return [self._output_name(x, ".ilk") for x in self.inputs]
def _pdb_file_name(self):
if self.mode == "compile":
return None
return os.path.splitext(self.output)[0] + ".pdb"
def _get_compilation_command(self, source, obj):
args = []
args.append(self.compiler)
if self.toolchain_type == "clang-cl":
args.append("-m" + self.arch)
if self.opt == "none":
args.append("/Od")
elif self.opt == "basic":
args.append("/O2")
elif self.opt == "lto":
if self.toolchain_type == "msvc":
args.append("/GL")
args.append("/Gw")
else:
args.append("-flto=thin")
if self.nodefaultlib:
args.append("/GS-")
args.append("/GR-")
args.append("/Z7")
if self.toolchain_type == "clang-cl":
args.append("-Xclang")
args.append("-fkeep-static-consts")
args.append("-fms-compatibility-version=19")
args.append("/c")
args.append("/Fo" + obj)
if self.toolchain_type == "clang-cl":
args.append("--")
args.append(source)
if self.std:
args.append("/std:" + self.std)
return ("compiling", [source], obj, self.compile_env, args)
def _get_link_command(self):
args = []
args.append(self.linker)
args.append("/DEBUG:FULL")
args.append("/INCREMENTAL:NO")
if self.nodefaultlib:
args.append("/nodefaultlib")
args.append("/entry:main")
args.append("/PDB:" + self._pdb_file_name())
args.append("/OUT:" + self._exe_file_name())
args.extend(self._obj_file_names())
return (
"linking",
self._obj_file_names(),
self._exe_file_name(),
self.link_env,
args,
)
def build_commands(self):
commands = []
if self.mode == "compile" or self.mode == "compile-and-link":
for input, output in zip(self.inputs, self._obj_file_names()):
commands.append(self._get_compilation_command(input, output))
if self.mode == "link" or self.mode == "compile-and-link":
commands.append(self._get_link_command())
return commands
def output_files(self):
outputs = []
if self.mode == "compile" or self.mode == "compile-and-link":
outputs.extend(self._ilk_file_names())
outputs.extend(self._obj_file_names())
if self.mode == "link" or self.mode == "compile-and-link":
outputs.append(self._pdb_file_name())
outputs.append(self._exe_file_name())
return [x for x in outputs if x is not None]
class GccBuilder(Builder):
def __init__(self, toolchain_type, args):
Builder.__init__(self, toolchain_type, args, ".o")
if sys.platform == "darwin":
cmd = ["xcrun", "--sdk", args.apple_sdk, "--show-sdk-path"]
self.apple_sdk = subprocess.check_output(cmd).strip().decode("utf-8")
def _add_m_option_if_needed(self, args):
# clang allows -m(32|64) for any target, gcc does not.
uname = platform.uname().machine.lower()
if self.toolchain_type != "gcc" or (
not "arm" in uname and not "aarch64" in uname
):
args.append("-m" + self.arch)
return args
def _get_compilation_command(self, source, obj):
args = []
args.append(self.compiler)
args = self._add_m_option_if_needed(args)
args.append("-g")
if self.opt == "none":
args.append("-O0")
elif self.opt == "basic":
args.append("-O2")
elif self.opt == "lto":
args.append("-flto=thin")
if self.nodefaultlib:
args.append("-nostdinc")
args.append("-static")
args.append("-c")
if sys.platform == "darwin":
args.extend(["-isysroot", self.apple_sdk])
elif self.objc_gnustep_inc:
if source.endswith(".m") or source.endswith(".mm"):
args.extend(["-fobjc-runtime=gnustep-2.0", "-I", self.objc_gnustep_inc])
if sys.platform == "win32":
args.extend(
["-Xclang", "-gcodeview", "-Xclang", "--dependent-lib=msvcrtd"]
)
elif self.sysroot:
args.extend(["--sysroot", self.sysroot])
if self.std:
args.append("-std={0}".format(self.std))
args.extend(["-o", obj])
args.append(source)
return ("compiling", [source], obj, None, args)
def _get_link_command(self):
args = []
args.append(self.compiler)
args = self._add_m_option_if_needed(args)
if self.nodefaultlib:
args.append("-nostdlib")
args.append("-static")
main_symbol = "main"
if sys.platform == "darwin":
main_symbol = "_main"
args.append("-Wl,-e," + main_symbol)
if sys.platform.startswith("netbsd"):
for x in self.lib_paths:
args += ["-L" + x, "-Wl,-rpath," + x]
args.extend(["-o", self._exe_file_name()])
args.extend(self._obj_file_names())
if sys.platform == "darwin":
args.extend(["-isysroot", self.apple_sdk])
elif self.objc_gnustep_lib:
args.extend(["-L", self.objc_gnustep_lib, "-lobjc"])
if sys.platform == "linux":
args.extend(["-Wl,-rpath," + self.objc_gnustep_lib])
elif sys.platform == "win32":
args.extend(
["-fuse-ld=lld-link", "-g", "-Xclang", "--dependent-lib=msvcrtd"]
)
elif self.sysroot:
args.extend(["--sysroot", self.sysroot])
return ("linking", self._obj_file_names(), self._exe_file_name(), None, args)
def output_files(self):
outputs = []
if self.mode == "compile" or self.mode == "compile-and-link":
outputs.extend(self._obj_file_names())
if self.mode == "link" or self.mode == "compile-and-link":
outputs.append(self._exe_file_name())
return outputs
def indent(text, spaces):
def prefixed_lines():
prefix = " " * spaces
for line in text.splitlines(True):
yield prefix + line
return "".join(prefixed_lines())
def build(commands):
global args
for status, inputs, output, env, child_args in commands:
print("\n\n")
inputs = [os.path.basename(x) for x in inputs]
output = os.path.basename(output)
print(status + " {0} -> {1}".format("+".join(inputs), output))
if args.verbose:
print(" Command Line: " + " ".join(child_args))
print(" Env:")
print_environment(env)
if args.dry:
continue
popen = subprocess.Popen(
child_args,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
env=env,
universal_newlines=True,
)
stdout, stderr = popen.communicate()
res = popen.wait()
if res == -signal.SIGINT:
raise KeyboardInterrupt
print(" STDOUT:")
print(indent(stdout, 4))
if res != 0:
print(" STDERR:")
print(indent(stderr, 4))
sys.exit(res)
def clean(files):
global args
if not files:
return
for o in files:
file = o if args.verbose else os.path.basename(o)
print("Cleaning {0}".format(file))
try:
if os.path.exists(o):
if not args.dry:
os.remove(o)
if args.verbose:
print(" The file was successfully cleaned.")
elif args.verbose:
print(" The file does not exist.")
except:
if args.verbose:
print(" The file could not be removed.")
def fix_arguments(args):
if not args.inputs:
raise ValueError("No input files specified")
if args.output and args.mode == "compile" and len(args.inputs) > 1:
raise ValueError(
"Cannot specify -o with mode=compile and multiple source files. Use --outdir instead."
)
if not args.dry:
args.inputs = [os.path.abspath(x) for x in args.inputs]
# If user didn't specify the outdir, use the directory of the first input.
if not args.outdir:
if args.output:
args.outdir = os.path.dirname(args.output)
else:
args.outdir = os.path.dirname(args.inputs[0])
args.outdir = os.path.abspath(args.outdir)
args.outdir = os.path.normpath(args.outdir)
# If user specified a non-absolute path for the output file, append the
# output directory to it.
if args.output:
if not os.path.isabs(args.output):
args.output = os.path.join(args.outdir, args.output)
args.output = os.path.normpath(args.output)
fix_arguments(args)
(toolchain_type, toolchain_path) = find_toolchain(args.compiler, args.tools_dir)
if not toolchain_path or not toolchain_type:
print("Unable to find toolchain {0}".format(args.compiler))
sys.exit(1)
if args.verbose:
print("Script Arguments:")
print(" Arch: " + args.arch)
print(" Compiler: " + args.compiler)
print(" Outdir: " + args.outdir)
print(" Output: " + args.output)
print(" Nodefaultlib: " + str(args.nodefaultlib))
print(" Opt: " + args.opt)
print(" Mode: " + args.mode)
print(" Clean: " + str(args.clean))
print(" Verbose: " + str(args.verbose))
print(" Dryrun: " + str(args.dry))
print(" Inputs: " + format_text(args.inputs, 0, 10))
print(" C/C++ Standard: " + str(args.std))
print("Script Environment:")
print_environment(os.environ)
args.compiler = toolchain_path
if not os.path.exists(args.compiler) and not args.dry:
raise ValueError("The toolchain {} does not exist.".format(args.compiler))
if toolchain_type == "msvc" or toolchain_type == "clang-cl":
builder = MsvcBuilder(toolchain_type, args)
else:
builder = GccBuilder(toolchain_type, args)
if args.clean:
clean(builder.output_files())
cmds = builder.build_commands()
build(cmds)
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