electron/toolchain.gypi

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{
'variables': {
# Clang stuff.
'make_clang_dir%': 'vendor/llvm-build/Release+Asserts',
# Set this to true when building with Clang.
'clang%': 1,
'variables': {
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# The minimum macOS SDK version to use.
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'mac_sdk_min%': '10.10',
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# Set ARM architecture version.
'arm_version%': 7,
# Set NEON compilation flags.
'arm_neon%': 1,
# Abosulte path to source root.
'source_root%': '<!(node <(DEPTH)/tools/atom_source_root.js)',
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},
# Copy conditionally-set variables out one scope.
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'mac_sdk_min%': '<(mac_sdk_min)',
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'arm_version%': '<(arm_version)',
'arm_neon%': '<(arm_neon)',
'source_root%': '<(source_root)',
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# Variables to control Link-Time Optimization (LTO).
'use_lto%': 0,
'use_lto_o2%': 0,
'conditions': [
# Do not use Clang on Windows.
['OS=="win"', {
'clang%': 0,
}], # OS=="win"
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# Search for the available version of SDK.
['OS=="mac"', {
'mac_sdk%': '<!(python <(DEPTH)/tools/mac/find_sdk.py <(mac_sdk_min))',
}],
['OS=="linux"', {
'variables': {
# The system libdir used for this ABI.
'system_libdir%': 'lib',
# Setting the path to sysroot.
'conditions': [
['target_arch=="arm"', {
# sysroot needs to be an absolute path otherwise it generates
# incorrect results when passed to pkg-config
'sysroot%': '<(source_root)/vendor/debian_wheezy_arm-sysroot',
}],
['target_arch=="ia32"', {
'sysroot%': '<(source_root)/vendor/debian_wheezy_i386-sysroot',
}],
['target_arch=="x64"', {
'sysroot%': '<(source_root)/vendor/debian_wheezy_amd64-sysroot',
}],
],
},
# Copy conditionally-set variables out one scope.
'sysroot%': '<(sysroot)',
'system_libdir%': '<(system_libdir)',
# Redirect pkg-config to search from sysroot.
'pkg-config%': '<(source_root)/tools/linux/pkg-config-wrapper "<(sysroot)" "<(target_arch)" "<(system_libdir)"',
}],
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# Set default compiler flags depending on ARM version.
['arm_version==6', {
'arm_arch%': 'armv6',
'arm_tune%': '',
'arm_fpu%': 'vfp',
'arm_float_abi%': 'softfp',
'arm_thumb%': 0,
}], # arm_version==6
['arm_version==7', {
'arm_arch%': 'armv7-a',
'arm_tune%': 'generic-armv7-a',
'conditions': [
['arm_neon==1', {
'arm_fpu%': 'neon',
}, {
'arm_fpu%': 'vfpv3-d16',
}],
],
'arm_float_abi%': 'hard',
'arm_thumb%': 1,
}], # arm_version==7
],
},
'conditions': [
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# Setup building with clang.
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['clang==1', {
'make_global_settings': [
['CC', '<(make_clang_dir)/bin/clang'],
['CXX', '<(make_clang_dir)/bin/clang++'],
['CC.host', '$(CC)'],
['CXX.host', '$(CXX)'],
],
'target_defaults': {
'cflags_cc': [
'-std=c++11',
],
'xcode_settings': {
'CC': '<(make_clang_dir)/bin/clang',
'LDPLUSPLUS': '<(make_clang_dir)/bin/clang++',
'OTHER_CFLAGS': [
'-fcolor-diagnostics',
],
'GCC_C_LANGUAGE_STANDARD': 'c99', # -std=c99
'CLANG_CXX_LIBRARY': 'libc++', # -stdlib=libc++
'CLANG_CXX_LANGUAGE_STANDARD': 'c++11', # -std=c++11
},
'target_conditions': [
['_type in ["executable", "shared_library"]', {
'xcode_settings': {
# On some machines setting CLANG_CXX_LIBRARY doesn't work for
# linker.
'OTHER_LDFLAGS': [ '-stdlib=libc++' ],
},
}],
],
},
}], # clang==1
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# Specify the SDKROOT.
['OS=="mac"', {
'target_defaults': {
'xcode_settings': {
'SDKROOT': 'macosx<(mac_sdk)', # -isysroot
},
},
}],
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# Setup sysroot environment.
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['OS=="linux" and target_arch in ["arm", "ia32", "x64"]', {
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'target_defaults': {
'target_conditions': [
['_toolset=="target"', {
'cflags': [
'--sysroot=<(sysroot)',
],
'ldflags': [
'--sysroot=<(sysroot)',
'<!(<(source_root)/tools/linux/sysroot_ld_path.sh <(sysroot))',
],
}]
],
},
}], # sysroot
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# Setup cross-compilation on Linux.
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['OS=="linux"', {
'target_defaults': {
'target_conditions': [
['target_arch=="ia32" and _toolset=="target"', {
'asflags': [
'-32',
],
'cflags': [
'-msse2',
'-mfpmath=sse',
'-mmmx', # Allows mmintrin.h for MMX intrinsics.
'-m32',
],
'ldflags': [
'-m32',
],
}], # target_arch=="ia32" and _toolset=="target"
['target_arch=="x64" and _toolset=="target"', {
'cflags': [
'-m64',
'-march=x86-64',
],
'ldflags': [
'-m64',
],
}], # target_arch=="x64" and _toolset=="target"
['target_arch=="arm" and _toolset=="target"', {
'conditions': [
['clang==0', {
'cflags_cc': [
'-Wno-abi',
],
}],
['clang==1 and arm_arch!=""', {
'cflags': [
'-target arm-linux-gnueabihf',
],
'ldflags': [
'-target arm-linux-gnueabihf',
],
}],
['arm_arch!=""', {
'cflags': [
'-march=<(arm_arch)',
],
'conditions': [
['use_lto==1 or use_lto_o2==1', {
'ldflags': [
'-march=<(arm_arch)',
],
}],
],
}],
['arm_tune!=""', {
'cflags': [
'-mtune=<(arm_tune)',
],
'conditions': [
['use_lto==1 or use_lto_o2==1', {
'ldflags': [
'-mtune=<(arm_tune)',
],
}],
],
}],
['arm_fpu!=""', {
'cflags': [
'-mfpu=<(arm_fpu)',
],
'conditions': [
['use_lto==1 or use_lto_o2==1', {
'ldflags': [
'-mfpu=<(arm_fpu)',
],
}],
],
}],
['arm_float_abi!=""', {
'cflags': [
'-mfloat-abi=<(arm_float_abi)',
],
'conditions': [
['use_lto==1 or use_lto_o2==1', {
'ldflags': [
'-mfloat-abi=<(arm_float_abi)',
],
}],
],
}],
['arm_thumb==1', {
'cflags': [
'-mthumb',
],
'conditions': [
['use_lto==1 or use_lto_o2==1', {
'ldflags': [
'-mthumb',
],
}],
],
}],
],
}], # target_arch=="arm" and _toolset=="target"
],
},
}], # OS=="linux"
],
}