virtualx-engine/platform/iphone/detect.py
Rémi Verschelde c2a669a9f0 SCons: Review uses of CCFLAGS, CXXFLAGS and CPPFLAGS
Many contributors (me included) did not fully understand what CCFLAGS,
CXXFLAGS and CPPFLAGS refer to exactly, and were thus not using them
in the way they are intended to be.

As per the SCons manual: https://www.scons.org/doc/HTML/scons-user/apa.html

- CCFLAGS: General options that are passed to the C and C++ compilers.
- CFLAGS: General options that are passed to the C compiler (C only;
  not C++).
- CXXFLAGS: General options that are passed to the C++ compiler. By
  default, this includes the value of $CCFLAGS, so that setting
  $CCFLAGS affects both C and C++ compilation.
- CPPFLAGS: User-specified C preprocessor options. These will be
  included in any command that uses the C preprocessor, including not
  just compilation of C and C++ source files [...], but also [...]
  Fortran [...] and [...] assembly language source file[s].

TL;DR: Compiler options go to CCFLAGS, unless they must be restricted
to either C (CFLAGS) or C++ (CXXFLAGS). Preprocessor defines go to
CPPFLAGS.
2019-04-24 16:57:58 +02:00

176 lines
7.2 KiB
Python

import os
import sys
from methods import detect_darwin_sdk_path
def is_active():
return True
def get_name():
return "iOS"
def can_build():
if sys.platform == 'darwin' or ("OSXCROSS_IOS" in os.environ):
return True
return False
def get_opts():
from SCons.Variables import BoolVariable
return [
('IPHONEPATH', 'Path to iPhone toolchain', '/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain'),
('IPHONESDK', 'Path to the iPhone SDK', ''),
BoolVariable('game_center', 'Support for game center', True),
BoolVariable('store_kit', 'Support for in-app store', True),
BoolVariable('icloud', 'Support for iCloud', True),
BoolVariable('ios_exceptions', 'Enable exceptions', False),
('ios_triple', 'Triple for ios toolchain', ''),
]
def get_flags():
return [
('tools', False),
]
def configure(env):
## Build type
if (env["target"].startswith("release")):
env.Append(CPPFLAGS=['-DNDEBUG', '-DNS_BLOCK_ASSERTIONS=1'])
if (env["optimize"] == "speed"): #optimize for speed (default)
env.Append(CCFLAGS=['-O2', '-ftree-vectorize', '-fomit-frame-pointer'])
env.Append(LINKFLAGS=['-O2'])
else: #optimize for size
env.Append(CCFLAGS=['-Os', '-ftree-vectorize'])
env.Append(LINKFLAGS=['-Os'])
if env["target"] == "release_debug":
env.Append(CPPFLAGS=['-DDEBUG_ENABLED'])
elif (env["target"] == "debug"):
env.Append(CCFLAGS=['-gdwarf-2', '-O0'])
env.Append(CPPFLAGS=['-D_DEBUG', '-DDEBUG=1', '-DDEBUG_ENABLED', '-DDEBUG_MEMORY_ENABLED'])
if (env["use_lto"]):
env.Append(CCFLAGS=['-flto'])
env.Append(LINKFLAGS=['-flto'])
## Architecture
if env["arch"] == "x86": # i386
env["bits"] = "32"
elif env["arch"] == "x86_64":
env["bits"] = "64"
elif (env["arch"] == "arm" or env["arch"] == "arm32" or env["arch"] == "armv7" or env["bits"] == "32"): # arm
env["arch"] = "arm"
env["bits"] = "32"
else: # armv64
env["arch"] = "arm64"
env["bits"] = "64"
## Compiler configuration
# Save this in environment for use by other modules
if "OSXCROSS_IOS" in os.environ:
env["osxcross"] = True
env['ENV']['PATH'] = env['IPHONEPATH'] + "/Developer/usr/bin/:" + env['ENV']['PATH']
compiler_path = '$IPHONEPATH/usr/bin/${ios_triple}'
s_compiler_path = '$IPHONEPATH/Developer/usr/bin/'
ccache_path = os.environ.get("CCACHE")
if ccache_path is None:
env['CC'] = compiler_path + 'clang'
env['CXX'] = compiler_path + 'clang++'
env['S_compiler'] = s_compiler_path + 'gcc'
else:
# there aren't any ccache wrappers available for iOS,
# to enable caching we need to prepend the path to the ccache binary
env['CC'] = ccache_path + ' ' + compiler_path + 'clang'
env['CXX'] = ccache_path + ' ' + compiler_path + 'clang++'
env['S_compiler'] = ccache_path + ' ' + s_compiler_path + 'gcc'
env['AR'] = compiler_path + 'ar'
env['RANLIB'] = compiler_path + 'ranlib'
## Compile flags
if (env["arch"] == "x86" or env["arch"] == "x86_64"):
detect_darwin_sdk_path('iphonesimulator', env)
env['ENV']['MACOSX_DEPLOYMENT_TARGET'] = '10.9'
arch_flag = "i386" if env["arch"] == "x86" else env["arch"]
env.Append(CCFLAGS=('-arch ' + arch_flag + ' -fobjc-abi-version=2 -fobjc-legacy-dispatch -fmessage-length=0 -fpascal-strings -fblocks -fasm-blocks -isysroot $IPHONESDK -mios-simulator-version-min=10.0').split())
elif (env["arch"] == "arm"):
detect_darwin_sdk_path('iphone', env)
env.Append(CCFLAGS='-fno-objc-arc -arch armv7 -fmessage-length=0 -fno-strict-aliasing -fdiagnostics-print-source-range-info -fdiagnostics-show-category=id -fdiagnostics-parseable-fixits -fpascal-strings -fblocks -isysroot $IPHONESDK -fvisibility=hidden -mthumb "-DIBOutlet=__attribute__((iboutlet))" "-DIBOutletCollection(ClassName)=__attribute__((iboutletcollection(ClassName)))" "-DIBAction=void)__attribute__((ibaction)" -miphoneos-version-min=10.0 -MMD -MT dependencies'.split())
elif (env["arch"] == "arm64"):
detect_darwin_sdk_path('iphone', env)
env.Append(CCFLAGS='-fno-objc-arc -arch arm64 -fmessage-length=0 -fno-strict-aliasing -fdiagnostics-print-source-range-info -fdiagnostics-show-category=id -fdiagnostics-parseable-fixits -fpascal-strings -fblocks -fvisibility=hidden -MMD -MT dependencies -miphoneos-version-min=10.0 -isysroot $IPHONESDK'.split())
env.Append(CPPFLAGS=['-DNEED_LONG_INT'])
env.Append(CPPFLAGS=['-DLIBYUV_DISABLE_NEON'])
if env['ios_exceptions']:
env.Append(CCFLAGS=['-fexceptions'])
else:
env.Append(CCFLAGS=['-fno-exceptions'])
## Link flags
if (env["arch"] == "x86" or env["arch"] == "x86_64"):
arch_flag = "i386" if env["arch"] == "x86" else env["arch"]
env.Append(LINKFLAGS=['-arch', arch_flag, '-mios-simulator-version-min=10.0',
'-isysroot', '$IPHONESDK',
'-Xlinker',
'-objc_abi_version',
'-Xlinker', '2',
'-F$IPHONESDK',
])
elif (env["arch"] == "arm"):
env.Append(LINKFLAGS=['-arch', 'armv7', '-Wl,-dead_strip', '-miphoneos-version-min=10.0'])
if (env["arch"] == "arm64"):
env.Append(LINKFLAGS=['-arch', 'arm64', '-Wl,-dead_strip', '-miphoneos-version-min=10.0'])
env.Append(LINKFLAGS=['-isysroot', '$IPHONESDK',
'-framework', 'AudioToolbox',
'-framework', 'AVFoundation',
'-framework', 'CoreAudio',
'-framework', 'CoreGraphics',
'-framework', 'CoreMedia',
'-framework', 'CoreMotion',
'-framework', 'Foundation',
'-framework', 'GameController',
'-framework', 'MediaPlayer',
'-framework', 'OpenGLES',
'-framework', 'QuartzCore',
'-framework', 'Security',
'-framework', 'SystemConfiguration',
'-framework', 'UIKit',
])
# Feature options
if env['game_center']:
env.Append(CPPFLAGS=['-DGAME_CENTER_ENABLED'])
env.Append(LINKFLAGS=['-framework', 'GameKit'])
if env['store_kit']:
env.Append(CPPFLAGS=['-DSTOREKIT_ENABLED'])
env.Append(LINKFLAGS=['-framework', 'StoreKit'])
if env['icloud']:
env.Append(CPPFLAGS=['-DICLOUD_ENABLED'])
env.Append(CPPPATH=['$IPHONESDK/usr/include',
'$IPHONESDK/System/Library/Frameworks/OpenGLES.framework/Headers',
'$IPHONESDK/System/Library/Frameworks/AudioUnit.framework/Headers',
])
env['ENV']['CODESIGN_ALLOCATE'] = '/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/codesign_allocate'
env.Append(CPPPATH=['#platform/iphone'])
env.Append(CPPFLAGS=['-DIPHONE_ENABLED', '-DUNIX_ENABLED', '-DGLES_ENABLED', '-DCOREAUDIO_ENABLED'])