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godot/methods.py
Rémi Verschelde c320a82213 SCons: Add 'split_libmodules' option to workaround linker issue 
The new 'split_libmodules=yes' option is useful to work around linker
command line size limitations when linking a huge number of objects.
We're currently over 64k chars when linking libmodules.a on Windows
with MinGW, which triggers issues as seen in #30892.

Even on Linux, we can also reach linker command line size limitations
by adding more custom modules.

We force this option to True for MinGW on Windows, which fixes #30892.

Additional changes to lib splitting:

- Fix linking of the split module libs with interdependent symbols,
  hacking our way into LINKCOM and SHLINKCOM to set the `--start-group`
  and `--end-group` flags.
- Fix Python 3 compatibility in `methods.split_lib()`.
- Drop seemingly obsolete condition for 'msys' on 'posix'.
- Drop the unnecessary 'split_drivers' as the drivers lib is no longer
  too big since we moved all thirdparty builds to modules.

Co-authored-by: Hein-Pieter van Braam-Stewart <hp@tmm.cx>
2019-12-11 15:40:28 +01:00

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import os
import os.path
import sys
import re
import glob
import string
import subprocess
from compat import iteritems, isbasestring, decode_utf8
def add_source_files(self, sources, files, warn_duplicates=True):
# Convert string to list of absolute paths (including expanding wildcard)
if isbasestring(files):
# Keep SCons project-absolute path as they are (no wildcard support)
if files.startswith('#'):
if '*' in files:
print("ERROR: Wildcards can't be expanded in SCons project-absolute path: '{}'".format(files))
return
files = [files]
else:
dir_path = self.Dir('.').abspath
files = sorted(glob.glob(dir_path + "/" + files))
# Add each path as compiled Object following environment (self) configuration
for path in files:
obj = self.Object(path)
if obj in sources:
if warn_duplicates:
print("WARNING: Object \"{}\" already included in environment sources.".format(obj))
else:
continue
sources.append(obj)
def disable_warnings(self):
# 'self' is the environment
if self.msvc:
# We have to remove existing warning level defines before appending /w,
# otherwise we get: "warning D9025 : overriding '/W3' with '/w'"
warn_flags = ['/Wall', '/W4', '/W3', '/W2', '/W1', '/WX']
self.Append(CCFLAGS=['/w'])
self.Append(CFLAGS=['/w'])
self.Append(CXXFLAGS=['/w'])
self['CCFLAGS'] = [x for x in self['CCFLAGS'] if not x in warn_flags]
self['CFLAGS'] = [x for x in self['CFLAGS'] if not x in warn_flags]
self['CXXFLAGS'] = [x for x in self['CXXFLAGS'] if not x in warn_flags]
else:
self.Append(CCFLAGS=['-w'])
self.Append(CFLAGS=['-w'])
self.Append(CXXFLAGS=['-w'])
def add_module_version_string(self,s):
self.module_version_string += "." + s
def update_version(module_version_string=""):
build_name = "custom_build"
if os.getenv("BUILD_NAME") != None:
build_name = os.getenv("BUILD_NAME")
print("Using custom build name: " + build_name)
import version
# NOTE: It is safe to generate this file here, since this is still executed serially
f = open("core/version_generated.gen.h", "w")
f.write("#define VERSION_SHORT_NAME \"" + str(version.short_name) + "\"\n")
f.write("#define VERSION_NAME \"" + str(version.name) + "\"\n")
f.write("#define VERSION_MAJOR " + str(version.major) + "\n")
f.write("#define VERSION_MINOR " + str(version.minor) + "\n")
if hasattr(version, 'patch'):
f.write("#define VERSION_PATCH " + str(version.patch) + "\n")
f.write("#define VERSION_STATUS \"" + str(version.status) + "\"\n")
f.write("#define VERSION_BUILD \"" + str(build_name) + "\"\n")
f.write("#define VERSION_MODULE_CONFIG \"" + str(version.module_config) + module_version_string + "\"\n")
f.write("#define VERSION_YEAR " + str(version.year) + "\n")
f.write("#define VERSION_WEBSITE \"" + str(version.website) + "\"\n")
f.close()
# NOTE: It is safe to generate this file here, since this is still executed serially
fhash = open("core/version_hash.gen.h", "w")
githash = ""
gitfolder = ".git"
if os.path.isfile(".git"):
module_folder = open(".git", "r").readline().strip()
if module_folder.startswith("gitdir: "):
gitfolder = module_folder[8:]
if os.path.isfile(os.path.join(gitfolder, "HEAD")):
head = open(os.path.join(gitfolder, "HEAD"), "r").readline().strip()
if head.startswith("ref: "):
head = os.path.join(gitfolder, head[5:])
if os.path.isfile(head):
githash = open(head, "r").readline().strip()
else:
githash = head
fhash.write("#define VERSION_HASH \"" + githash + "\"")
fhash.close()
def parse_cg_file(fname, uniforms, sizes, conditionals):
fs = open(fname, "r")
line = fs.readline()
while line:
if re.match(r"^\s*uniform", line):
res = re.match(r"uniform ([\d\w]*) ([\d\w]*)")
type = res.groups(1)
name = res.groups(2)
uniforms.append(name)
if type.find("texobj") != -1:
sizes.append(1)
else:
t = re.match(r"float(\d)x(\d)", type)
if t:
sizes.append(int(t.groups(1)) * int(t.groups(2)))
else:
t = re.match(r"float(\d)", type)
sizes.append(int(t.groups(1)))
if line.find("[branch]") != -1:
conditionals.append(name)
line = fs.readline()
fs.close()
def detect_modules():
module_list = []
includes_cpp = ""
register_cpp = ""
unregister_cpp = ""
files = glob.glob("modules/*")
files.sort() # so register_module_types does not change that often, and also plugins are registered in alphabetic order
for x in files:
if not os.path.isdir(x):
continue
if not os.path.exists(x + "/config.py"):
continue
x = x.replace("modules/", "") # rest of world
x = x.replace("modules\\", "") # win32
module_list.append(x)
try:
with open("modules/" + x + "/register_types.h"):
includes_cpp += '#include "modules/' + x + '/register_types.h"\n'
register_cpp += '#ifdef MODULE_' + x.upper() + '_ENABLED\n'
register_cpp += '\tregister_' + x + '_types();\n'
register_cpp += '#endif\n'
unregister_cpp += '#ifdef MODULE_' + x.upper() + '_ENABLED\n'
unregister_cpp += '\tunregister_' + x + '_types();\n'
unregister_cpp += '#endif\n'
except IOError:
pass
modules_cpp = """
// modules.cpp - THIS FILE IS GENERATED, DO NOT EDIT!!!!!!!
#include "register_module_types.h"
""" + includes_cpp + """
void register_module_types() {
""" + register_cpp + """
}
void unregister_module_types() {
""" + unregister_cpp + """
}
"""
# NOTE: It is safe to generate this file here, since this is still executed serially
with open("modules/register_module_types.gen.cpp", "w") as f:
f.write(modules_cpp)
return module_list
def win32_spawn(sh, escape, cmd, args, env):
import subprocess
newargs = ' '.join(args[1:])
cmdline = cmd + " " + newargs
startupinfo = subprocess.STARTUPINFO()
for e in env:
if type(env[e]) != type(""):
env[e] = str(env[e])
proc = subprocess.Popen(cmdline, stdin=subprocess.PIPE, stdout=subprocess.PIPE,
stderr=subprocess.PIPE, startupinfo=startupinfo, shell=False, env=env)
_, err = proc.communicate()
rv = proc.wait()
if rv:
print("=====")
print(err)
print("=====")
return rv
"""
def win32_spawn(sh, escape, cmd, args, spawnenv):
import win32file
import win32event
import win32process
import win32security
for var in spawnenv:
spawnenv[var] = spawnenv[var].encode('ascii', 'replace')
sAttrs = win32security.SECURITY_ATTRIBUTES()
StartupInfo = win32process.STARTUPINFO()
newargs = ' '.join(map(escape, args[1:]))
cmdline = cmd + " " + newargs
# check for any special operating system commands
if cmd == 'del':
for arg in args[1:]:
win32file.DeleteFile(arg)
exit_code = 0
else:
# otherwise execute the command.
hProcess, hThread, dwPid, dwTid = win32process.CreateProcess(None, cmdline, None, None, 1, 0, spawnenv, None, StartupInfo)
win32event.WaitForSingleObject(hProcess, win32event.INFINITE)
exit_code = win32process.GetExitCodeProcess(hProcess)
win32file.CloseHandle(hProcess);
win32file.CloseHandle(hThread);
return exit_code
"""
def disable_module(self):
self.disabled_modules.append(self.current_module)
def use_windows_spawn_fix(self, platform=None):
if (os.name != "nt"):
return # not needed, only for windows
# On Windows, due to the limited command line length, when creating a static library
# from a very high number of objects SCons will invoke "ar" once per object file;
# that makes object files with same names to be overwritten so the last wins and
# the library looses symbols defined by overwritten objects.
# By enabling quick append instead of the default mode (replacing), libraries will
# got built correctly regardless the invocation strategy.
# Furthermore, since SCons will rebuild the library from scratch when an object file
# changes, no multiple versions of the same object file will be present.
self.Replace(ARFLAGS='q')
def mySubProcess(cmdline, env):
startupinfo = subprocess.STARTUPINFO()
startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
proc = subprocess.Popen(cmdline, stdin=subprocess.PIPE, stdout=subprocess.PIPE,
stderr=subprocess.PIPE, startupinfo=startupinfo, shell=False, env=env)
_, err = proc.communicate()
rv = proc.wait()
if rv:
print("=====")
print(err)
print("=====")
return rv
def mySpawn(sh, escape, cmd, args, env):
newargs = ' '.join(args[1:])
cmdline = cmd + " " + newargs
rv = 0
env = {str(key): str(value) for key, value in iteritems(env)}
if len(cmdline) > 32000 and cmd.endswith("ar"):
cmdline = cmd + " " + args[1] + " " + args[2] + " "
for i in range(3, len(args)):
rv = mySubProcess(cmdline + args[i], env)
if rv:
break
else:
rv = mySubProcess(cmdline, env)
return rv
self['SPAWN'] = mySpawn
def split_lib(self, libname, src_list = None, env_lib = None):
env = self
num = 0
cur_base = ""
max_src = 64
list = []
lib_list = []
if src_list is None:
src_list = getattr(env, libname + "_sources")
if type(env_lib) == type(None):
env_lib = env
for f in src_list:
fname = ""
if type(f) == type(""):
fname = env.File(f).path
else:
fname = env.File(f)[0].path
fname = fname.replace("\\", "/")
base = "/".join(fname.split("/")[:2])
if base != cur_base and len(list) > max_src:
if num > 0:
lib = env_lib.add_library(libname + str(num), list)
lib_list.append(lib)
list = []
num = num + 1
cur_base = base
list.append(f)
lib = env_lib.add_library(libname + str(num), list)
lib_list.append(lib)
lib_base = []
env_lib.add_source_files(lib_base, "*.cpp")
lib = env_lib.add_library(libname, lib_base)
lib_list.insert(0, lib)
env.Prepend(LIBS=lib_list)
# When we split modules into arbitrary chunks, we end up with linking issues
# due to symbol dependencies split over several libs, which may not be linked
# in the required order. We use --start-group and --end-group to tell the
# linker that those archives should be searched repeatedly to resolve all
# undefined references.
# As SCons doesn't give us much control over how inserting libs in LIBS
# impacts the linker call, we need to hack our way into the linking commands
# LINKCOM and SHLINKCOM to set those flags.
if '-Wl,--start-group' in env['LINKCOM'] and '-Wl,--start-group' in env['SHLINKCOM']:
# Already added by a previous call, skip.
return
env['LINKCOM'] = str(env['LINKCOM']).replace('$_LIBFLAGS',
'-Wl,--start-group $_LIBFLAGS -Wl,--end-group')
env['SHLINKCOM'] = str(env['LINKCOM']).replace('$_LIBFLAGS',
'-Wl,--start-group $_LIBFLAGS -Wl,--end-group')
def save_active_platforms(apnames, ap):
for x in ap:
names = ['logo']
if os.path.isfile(x + "/run_icon.png"):
names.append('run_icon')
for name in names:
pngf = open(x + "/" + name + ".png", "rb")
b = pngf.read(1)
str = " /* AUTOGENERATED FILE, DO NOT EDIT */ \n"
str += " static const unsigned char _" + x[9:] + "_" + name + "[]={"
while len(b) == 1:
str += hex(ord(b))
b = pngf.read(1)
if (len(b) == 1):
str += ","
str += "};\n"
pngf.close()
# NOTE: It is safe to generate this file here, since this is still executed serially
wf = x + "/" + name + ".gen.h"
with open(wf, "w") as pngw:
pngw.write(str)
def no_verbose(sys, env):
colors = {}
# Colors are disabled in non-TTY environments such as pipes. This means
# that if output is redirected to a file, it will not contain color codes
if sys.stdout.isatty():
colors['cyan'] = '\033[96m'
colors['purple'] = '\033[95m'
colors['blue'] = '\033[94m'
colors['green'] = '\033[92m'
colors['yellow'] = '\033[93m'
colors['red'] = '\033[91m'
colors['end'] = '\033[0m'
else:
colors['cyan'] = ''
colors['purple'] = ''
colors['blue'] = ''
colors['green'] = ''
colors['yellow'] = ''
colors['red'] = ''
colors['end'] = ''
compile_source_message = '%sCompiling %s==> %s$SOURCE%s' % (colors['blue'], colors['purple'], colors['yellow'], colors['end'])
java_compile_source_message = '%sCompiling %s==> %s$SOURCE%s' % (colors['blue'], colors['purple'], colors['yellow'], colors['end'])
compile_shared_source_message = '%sCompiling shared %s==> %s$SOURCE%s' % (colors['blue'], colors['purple'], colors['yellow'], colors['end'])
link_program_message = '%sLinking Program %s==> %s$TARGET%s' % (colors['red'], colors['purple'], colors['yellow'], colors['end'])
link_library_message = '%sLinking Static Library %s==> %s$TARGET%s' % (colors['red'], colors['purple'], colors['yellow'], colors['end'])
ranlib_library_message = '%sRanlib Library %s==> %s$TARGET%s' % (colors['red'], colors['purple'], colors['yellow'], colors['end'])
link_shared_library_message = '%sLinking Shared Library %s==> %s$TARGET%s' % (colors['red'], colors['purple'], colors['yellow'], colors['end'])
java_library_message = '%sCreating Java Archive %s==> %s$TARGET%s' % (colors['red'], colors['purple'], colors['yellow'], colors['end'])
env.Append(CXXCOMSTR=[compile_source_message])
env.Append(CCCOMSTR=[compile_source_message])
env.Append(SHCCCOMSTR=[compile_shared_source_message])
env.Append(SHCXXCOMSTR=[compile_shared_source_message])
env.Append(ARCOMSTR=[link_library_message])
env.Append(RANLIBCOMSTR=[ranlib_library_message])
env.Append(SHLINKCOMSTR=[link_shared_library_message])
env.Append(LINKCOMSTR=[link_program_message])
env.Append(JARCOMSTR=[java_library_message])
env.Append(JAVACCOMSTR=[java_compile_source_message])
def detect_visual_c_compiler_version(tools_env):
# tools_env is the variable scons uses to call tools that execute tasks, SCons's env['ENV'] that executes tasks...
# (see the SCons documentation for more information on what it does)...
# in order for this function to be well encapsulated i choose to force it to receive SCons's TOOLS env (env['ENV']
# and not scons setup environment (env)... so make sure you call the right environment on it or it will fail to detect
# the proper vc version that will be called
# There is no flag to give to visual c compilers to set the architecture, ie scons bits argument (32,64,ARM etc)
# There are many different cl.exe files that are run, and each one compiles & links to a different architecture
# As far as I know, the only way to figure out what compiler will be run when Scons calls cl.exe via Program()
# is to check the PATH variable and figure out which one will be called first. Code below does that and returns:
# the following string values:
# "" Compiler not detected
# "amd64" Native 64 bit compiler
# "amd64_x86" 64 bit Cross Compiler for 32 bit
# "x86" Native 32 bit compiler
# "x86_amd64" 32 bit Cross Compiler for 64 bit
# There are other architectures, but Godot does not support them currently, so this function does not detect arm/amd64_arm
# and similar architectures/compilers
# Set chosen compiler to "not detected"
vc_chosen_compiler_index = -1
vc_chosen_compiler_str = ""
# Start with Pre VS 2017 checks which uses VCINSTALLDIR:
if 'VCINSTALLDIR' in tools_env:
# print("Checking VCINSTALLDIR")
# find() works with -1 so big ifs below are needed... the simplest solution, in fact
# First test if amd64 and amd64_x86 compilers are present in the path
vc_amd64_compiler_detection_index = tools_env["PATH"].find(tools_env["VCINSTALLDIR"] + "BIN\\amd64;")
if(vc_amd64_compiler_detection_index > -1):
vc_chosen_compiler_index = vc_amd64_compiler_detection_index
vc_chosen_compiler_str = "amd64"
vc_amd64_x86_compiler_detection_index = tools_env["PATH"].find(tools_env["VCINSTALLDIR"] + "BIN\\amd64_x86;")
if(vc_amd64_x86_compiler_detection_index > -1
and (vc_chosen_compiler_index == -1
or vc_chosen_compiler_index > vc_amd64_x86_compiler_detection_index)):
vc_chosen_compiler_index = vc_amd64_x86_compiler_detection_index
vc_chosen_compiler_str = "amd64_x86"
# Now check the 32 bit compilers
vc_x86_compiler_detection_index = tools_env["PATH"].find(tools_env["VCINSTALLDIR"] + "BIN;")
if(vc_x86_compiler_detection_index > -1
and (vc_chosen_compiler_index == -1
or vc_chosen_compiler_index > vc_x86_compiler_detection_index)):
vc_chosen_compiler_index = vc_x86_compiler_detection_index
vc_chosen_compiler_str = "x86"
vc_x86_amd64_compiler_detection_index = tools_env["PATH"].find(tools_env['VCINSTALLDIR'] + "BIN\\x86_amd64;")
if(vc_x86_amd64_compiler_detection_index > -1
and (vc_chosen_compiler_index == -1
or vc_chosen_compiler_index > vc_x86_amd64_compiler_detection_index)):
vc_chosen_compiler_index = vc_x86_amd64_compiler_detection_index
vc_chosen_compiler_str = "x86_amd64"
# and for VS 2017 and newer we check VCTOOLSINSTALLDIR:
if 'VCTOOLSINSTALLDIR' in tools_env:
# Newer versions have a different path available
vc_amd64_compiler_detection_index = tools_env["PATH"].upper().find(tools_env['VCTOOLSINSTALLDIR'].upper() + "BIN\\HOSTX64\\X64;")
if(vc_amd64_compiler_detection_index > -1):
vc_chosen_compiler_index = vc_amd64_compiler_detection_index
vc_chosen_compiler_str = "amd64"
vc_amd64_x86_compiler_detection_index = tools_env["PATH"].upper().find(tools_env['VCTOOLSINSTALLDIR'].upper() + "BIN\\HOSTX64\\X86;")
if(vc_amd64_x86_compiler_detection_index > -1
and (vc_chosen_compiler_index == -1
or vc_chosen_compiler_index > vc_amd64_x86_compiler_detection_index)):
vc_chosen_compiler_index = vc_amd64_x86_compiler_detection_index
vc_chosen_compiler_str = "amd64_x86"
vc_x86_compiler_detection_index = tools_env["PATH"].upper().find(tools_env['VCTOOLSINSTALLDIR'].upper() + "BIN\\HOSTX86\\X86;")
if(vc_x86_compiler_detection_index > -1
and (vc_chosen_compiler_index == -1
or vc_chosen_compiler_index > vc_x86_compiler_detection_index)):
vc_chosen_compiler_index = vc_x86_compiler_detection_index
vc_chosen_compiler_str = "x86"
vc_x86_amd64_compiler_detection_index = tools_env["PATH"].upper().find(tools_env['VCTOOLSINSTALLDIR'].upper() + "BIN\\HOSTX86\\X64;")
if(vc_x86_amd64_compiler_detection_index > -1
and (vc_chosen_compiler_index == -1
or vc_chosen_compiler_index > vc_x86_amd64_compiler_detection_index)):
vc_chosen_compiler_index = vc_x86_amd64_compiler_detection_index
vc_chosen_compiler_str = "x86_amd64"
return vc_chosen_compiler_str
def find_visual_c_batch_file(env):
from SCons.Tool.MSCommon.vc import get_default_version, get_host_target, find_batch_file
version = get_default_version(env)
(host_platform, target_platform, _) = get_host_target(env)
return find_batch_file(env, version, host_platform, target_platform)[0]
def generate_cpp_hint_file(filename):
if os.path.isfile(filename):
# Don't overwrite an existing hint file since the user may have customized it.
pass
else:
try:
with open(filename, "w") as fd:
fd.write("#define GDCLASS(m_class, m_inherits)\n")
except IOError:
print("Could not write cpp.hint file.")
def generate_vs_project(env, num_jobs):
batch_file = find_visual_c_batch_file(env)
if batch_file:
def build_commandline(commands):
common_build_prefix = ['cmd /V /C set "plat=$(PlatformTarget)"',
'(if "$(PlatformTarget)"=="x64" (set "plat=x86_amd64"))',
'set "tools=yes"',
'(if "$(Configuration)"=="release" (set "tools=no"))',
'call "' + batch_file + '" !plat!']
result = " ^& ".join(common_build_prefix + [commands])
return result
env.AddToVSProject(env.core_sources)
env.AddToVSProject(env.main_sources)
env.AddToVSProject(env.modules_sources)
env.AddToVSProject(env.scene_sources)
env.AddToVSProject(env.servers_sources)
env.AddToVSProject(env.editor_sources)
# windows allows us to have spaces in paths, so we need
# to double quote off the directory. However, the path ends
# in a backslash, so we need to remove this, lest it escape the
# last double quote off, confusing MSBuild
env['MSVSBUILDCOM'] = build_commandline('scons --directory="$(ProjectDir.TrimEnd(\'\\\'))" platform=windows progress=no target=$(Configuration) tools=!tools! -j' + str(num_jobs))
env['MSVSREBUILDCOM'] = build_commandline('scons --directory="$(ProjectDir.TrimEnd(\'\\\'))" platform=windows progress=no target=$(Configuration) tools=!tools! vsproj=yes -j' + str(num_jobs))
env['MSVSCLEANCOM'] = build_commandline('scons --directory="$(ProjectDir.TrimEnd(\'\\\'))" --clean platform=windows progress=no target=$(Configuration) tools=!tools! -j' + str(num_jobs))
# This version information (Win32, x64, Debug, Release, Release_Debug seems to be
# required for Visual Studio to understand that it needs to generate an NMAKE
# project. Do not modify without knowing what you are doing.
debug_variants = ['debug|Win32'] + ['debug|x64']
release_variants = ['release|Win32'] + ['release|x64']
release_debug_variants = ['release_debug|Win32'] + ['release_debug|x64']
variants = debug_variants + release_variants + release_debug_variants
debug_targets = ['bin\\godot.windows.tools.32.exe'] + ['bin\\godot.windows.tools.64.exe']
release_targets = ['bin\\godot.windows.opt.32.exe'] + ['bin\\godot.windows.opt.64.exe']
release_debug_targets = ['bin\\godot.windows.opt.tools.32.exe'] + ['bin\\godot.windows.opt.tools.64.exe']
targets = debug_targets + release_targets + release_debug_targets
if not env.get('MSVS'):
env['MSVS']['PROJECTSUFFIX'] = '.vcxproj'
env['MSVS']['SOLUTIONSUFFIX'] = '.sln'
env.MSVSProject(
target=['#godot' + env['MSVSPROJECTSUFFIX']],
incs=env.vs_incs,
srcs=env.vs_srcs,
runfile=targets,
buildtarget=targets,
auto_build_solution=1,
variant=variants)
else:
print("Could not locate Visual Studio batch file for setting up the build environment. Not generating VS project.")
def precious_program(env, program, sources, **args):
program = env.ProgramOriginal(program, sources, **args)
env.Precious(program)
return program
def add_shared_library(env, name, sources, **args):
library = env.SharedLibrary(name, sources, **args)
env.NoCache(library)
return library
def add_library(env, name, sources, **args):
library = env.Library(name, sources, **args)
env.NoCache(library)
return library
def add_program(env, name, sources, **args):
program = env.Program(name, sources, **args)
env.NoCache(program)
return program
def CommandNoCache(env, target, sources, command, **args):
result = env.Command(target, sources, command, **args)
env.NoCache(result)
return result
def detect_darwin_sdk_path(platform, env):
sdk_name = ''
if platform == 'osx':
sdk_name = 'macosx'
var_name = 'MACOS_SDK_PATH'
elif platform == 'iphone':
sdk_name = 'iphoneos'
var_name = 'IPHONESDK'
elif platform == 'iphonesimulator':
sdk_name = 'iphonesimulator'
var_name = 'IPHONESDK'
else:
raise Exception("Invalid platform argument passed to detect_darwin_sdk_path")
if not env[var_name]:
try:
sdk_path = decode_utf8(subprocess.check_output(['xcrun', '--sdk', sdk_name, '--show-sdk-path']).strip())
if sdk_path:
env[var_name] = sdk_path
except (subprocess.CalledProcessError, OSError):
print("Failed to find SDK path while running xcrun --sdk {} --show-sdk-path.".format(sdk_name))
raise
def get_compiler_version(env):
# Not using this method on clang because it returns 4.2.1 # https://reviews.llvm.org/D56803
if using_gcc(env):
version = decode_utf8(subprocess.check_output([env['CXX'], '-dumpversion']).strip())
else:
version = decode_utf8(subprocess.check_output([env['CXX'], '--version']).strip())
match = re.search('[0-9][0-9.]*', version)
if match is not None:
return match.group().split('.')
else:
return None
def using_gcc(env):
return 'gcc' in os.path.basename(env["CC"])
def using_clang(env):
return 'clang' in os.path.basename(env["CC"])
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