mirror of
https://github.com/Relintai/pandemonium_engine.git
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109 lines
3.1 KiB
Python
109 lines
3.1 KiB
Python
# detect_godot3.py
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#
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# FRT - A Godot platform targeting single board computers
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# Copyright (c) 2017-2022 Emanuele Fornara
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# SPDX-License-Identifier: MIT
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#
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import os
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import sys
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import platform
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import version
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# TODO factor out common bits
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def get_opts():
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from SCons.Variables import BoolVariable
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return [
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BoolVariable('use_llvm', 'Use llvm compiler', False),
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BoolVariable('use_lto', 'Use link time optimization', False),
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BoolVariable('use_static_cpp', 'Link libgcc and libstdc++ statically', False),
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('frt_std', 'C++ standard for frt itself (no/auto/c++98/...)', 'auto'),
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('frt_arch', 'Architecture (no/arm32v6/arm32v7/arm64v8)', 'no'),
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('frt_cross', 'Cross compilation (no/auto/<triple>)', 'no'),
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]
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def get_flags():
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return [
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]
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def configure_compiler(env):
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if env['use_llvm']:
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env['CC'] = 'clang'
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env['CXX'] = 'clang++'
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env['LD'] = 'clang++'
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env.extra_suffix += '.llvm'
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def configure_lto(env):
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if not env['use_lto']:
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return
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if env['use_llvm']:
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env.Append(CCFLAGS=['-flto=thin'])
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env.Append(LINKFLAGS=['-fuse-ld=lld', '-flto=thin'])
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env['AR'] = 'llvm-ar'
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env['RANLIB'] = 'llvm-ranlib'
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else:
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env.Append(CCFLAGS=['-flto'])
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env.Append(LINKFLAGS=['-flto'])
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env.extra_suffix += '.lto'
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def configure_arch(env):
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if env['frt_arch'] == 'arm32v6':
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env.Append(CCFLAGS=['-march=armv6', '-mfpu=vfp', '-mfloat-abi=hard'])
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env.extra_suffix += '.arm32v6'
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elif env['frt_arch'] == 'arm32v7':
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env.Append(CCFLAGS=['-march=armv7-a', '-mfpu=neon-vfpv4', '-mfloat-abi=hard'])
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env.extra_suffix += '.arm32v7'
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elif env['frt_arch'] == 'arm64v8':
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env.Append(CCFLAGS=['-march=armv8-a'])
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env.extra_suffix += '.arm64v8'
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def configure_cross(env):
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if env['frt_cross'] == 'no':
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env['FRT_PKG_CONFIG'] = 'pkg-config'
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return
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if env['frt_cross'] == 'auto':
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triple = {
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'arm32v7': 'arm-linux-gnueabihf',
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'arm64v8': 'aarch64-linux-gnu',
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}[env['frt_arch']]
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else:
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triple = env['frt_cross']
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if env['use_llvm']:
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env.Append(CCFLAGS=['-target', triple])
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env.Append(LINKFLAGS=['-target', triple])
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else:
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env['CC'] = triple + '-gcc'
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env['CXX'] = triple + '-g++'
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env['FRT_PKG_CONFIG'] = triple + '-pkg-config'
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def configure_target(env):
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if env['target'] == 'release':
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env.Append(CCFLAGS=['-O2', '-ffast-math', '-fomit-frame-pointer'])
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elif env['target'] == 'release_debug':
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env.Append(CCFLAGS=['-O2', '-ffast-math'])
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elif env['target'] == 'debug':
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env.Append(CCFLAGS=['-g2'])
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def configure_misc(env):
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env.Append(CPPPATH=['#platform/frt'])
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env.Append(CPPFLAGS=['-DUNIX_ENABLED', '-DGLES2_ENABLED', '-DGLES_ENABLED', '-DJOYDEV_ENABLED'])
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env.Append(CPPFLAGS=['-DFRT_ENABLED'])
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env.Append(CFLAGS=['-std=gnu11']) # for libwebp (maybe more in the future)
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env.Append(LIBS=['pthread', 'z', 'dl'])
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if env['frt_arch'] == 'arm32v6' and version.minor >= 4: # TODO find out exact combination
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env.Append(LIBS=['atomic'])
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if env['CXX'] == 'clang++':
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env['CC'] = 'clang'
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env['LD'] = 'clang++'
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if env['use_static_cpp']:
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env.Append(LINKFLAGS=['-static-libgcc', '-static-libstdc++'])
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def configure(env):
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configure_compiler(env)
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configure_lto(env)
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configure_arch(env)
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configure_cross(env)
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configure_target(env)
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configure_misc(env)
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