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{
'variables': {
'werror': '', # Turn off -Werror in V8 build.
'visibility%': 'hidden', # V8's visibility setting
'target_arch%': 'ia32', # set v8's target architecture
'host_arch%': 'ia32', # set v8's host architecture
'want_separate_host_toolset%': 0, # V8 should not build target and host
'library%': 'static_library', # allow override to 'shared_library' for DLL/.so builds
'component%': 'static_library', # NB. these names match with what V8 expects
'msvs_multi_core_compile': '0', # we do enable multicore compiles, but not using the V8 way
'gcc_version%': 'unknown',
'clang%': 0,
'python%': 'python',
# Enable disassembler for `--print-code` v8 options
'v8_enable_disassembler': 1,
# Enable V8's post-mortem debugging only on unix flavors.
'conditions': [
['OS == "win"', {
'os_posix': 0,
'v8_postmortem_support': 'false'
}, {
'os_posix': 1,
'v8_postmortem_support': 'true'
}],
['GENERATOR == "ninja" or OS== "mac"', {
'OBJ_DIR': '<(PRODUCT_DIR)/obj',
'V8_BASE': '<(PRODUCT_DIR)/libv8_base.a',
}, {
'OBJ_DIR': '<(PRODUCT_DIR)/obj.target',
'V8_BASE': '<(PRODUCT_DIR)/obj.target/deps/v8/tools/gyp/libv8_base.a',
}],
],
},
'target_defaults': {
'default_configuration': 'Release',
'configurations': {
'Debug': {
'variables': {
'v8_enable_handle_zapping%': 1,
},
'defines': [ 'DEBUG', '_DEBUG' ],
'cflags': [ '-g', '-O0' ],
'conditions': [
['target_arch=="x64"', {
'msvs_configuration_platform': 'x64',
}],
],
'msvs_settings': {
'VCCLCompilerTool': {
'RuntimeLibrary': 1, # static debug
'Optimization': 0, # /Od, no optimization
'MinimalRebuild': 'false',
'OmitFramePointers': 'false',
'BasicRuntimeChecks': 3, # /RTC1
},
'VCLinkerTool': {
'LinkIncremental': 2, # enable incremental linking
},
},
'xcode_settings': {
'GCC_OPTIMIZATION_LEVEL': '0', # stop gyp from defaulting to -Os
},
},
'Release': {
'variables': {
'v8_enable_handle_zapping%': 0,
},
'cflags': [ '-O3', '-ffunction-sections', '-fdata-sections' ],
'conditions': [
['target_arch=="x64"', {
'msvs_configuration_platform': 'x64',
}],
['OS=="solaris"', {
# pull in V8's postmortem metadata
'ldflags': [ '-Wl,-z,allextract' ]
}],
['clang == 0 and gcc_version >= 40', {
'cflags': [ '-fno-tree-vrp' ], # Work around compiler bug.
}],
['clang == 0 and gcc_version <= 44', {
'cflags': [ '-fno-tree-sink' ], # Work around compiler bug.
}],
['OS!="mac" and OS!="win"', {
'cflags': [ '-fno-omit-frame-pointer' ],
}],
],
'msvs_settings': {
'VCCLCompilerTool': {
'RuntimeLibrary': 0, # static release
'Optimization': 3, # /Ox, full optimization
'FavorSizeOrSpeed': 1, # /Ot, favour speed over size
'InlineFunctionExpansion': 2, # /Ob2, inline anything eligible
'WholeProgramOptimization': 'true', # /GL, whole program optimization, needed for LTCG
'OmitFramePointers': 'true',
'EnableFunctionLevelLinking': 'true',
'EnableIntrinsicFunctions': 'true',
'RuntimeTypeInfo': 'false',
'ExceptionHandling': '0',
'AdditionalOptions': [
'/MP', # compile across multiple CPUs
],
},
'VCLibrarianTool': {
'AdditionalOptions': [
'/LTCG', # link time code generation
],
},
'VCLinkerTool': {
'LinkTimeCodeGeneration': 1, # link-time code generation
'OptimizeReferences': 2, # /OPT:REF
'EnableCOMDATFolding': 2, # /OPT:ICF
'LinkIncremental': 1, # disable incremental linking
},
},
}
},
# Forcibly disable -Werror. We support a wide range of compilers, it's
# simply not feasible to squelch all warnings, never mind that the
# libraries in deps/ are not under our control.
'cflags!': ['-Werror'],
'msvs_settings': {
'VCCLCompilerTool': {
'StringPooling': 'true', # pool string literals
'DebugInformationFormat': 3, # Generate a PDB
'WarningLevel': 3,
'BufferSecurityCheck': 'true',
'ExceptionHandling': 1, # /EHsc
'SuppressStartupBanner': 'true',
'WarnAsError': 'false',
},
'VCLibrarianTool': {
},
'VCLinkerTool': {
'conditions': [
['target_arch=="x64"', {
'TargetMachine' : 17 # /MACHINE:X64
}],
],
'GenerateDebugInformation': 'true',
'RandomizedBaseAddress': 2, # enable ASLR
'DataExecutionPrevention': 2, # enable DEP
'AllowIsolation': 'true',
'SuppressStartupBanner': 'true',
'target_conditions': [
['_type=="executable"', {
'SubSystem': 1, # console executable
}],
],
},
},
'msvs_disabled_warnings': [4351, 4355, 4800],
'conditions': [
['OS == "win"', {
'msvs_cygwin_shell': 0, # prevent actions from trying to use cygwin
'defines': [
'WIN32',
# we don't really want VC++ warning us about
# how dangerous C functions are...
'_CRT_SECURE_NO_DEPRECATE',
# ... or that C implementations shouldn't use
# POSIX names
'_CRT_NONSTDC_NO_DEPRECATE',
'BUILDING_V8_SHARED=1',
'BUILDING_UV_SHARED=1',
],
}],
[ 'OS in "linux freebsd openbsd solaris"', {
'cflags': [ '-pthread', ],
'ldflags': [ '-pthread' ],
}],
[ 'OS in "linux freebsd openbsd solaris android"', {
'cflags': [ '-Wall', '-Wextra', '-Wno-unused-parameter', ],
'cflags_cc': [ '-fno-rtti', '-fno-exceptions' ],
'ldflags': [ '-rdynamic' ],
'target_conditions': [
['_type=="static_library"', {
'standalone_static_library': 1, # disable thin archive which needs binutils >= 2.19
}],
],
'conditions': [
[ 'target_arch=="ia32"', {
'cflags': [ '-m32' ],
'ldflags': [ '-m32' ],
}],
[ 'target_arch=="x64"', {
'cflags': [ '-m64' ],
'ldflags': [ '-m64' ],
}],
[ 'OS=="solaris"', {
'cflags': [ '-pthreads' ],
'ldflags': [ '-pthreads' ],
'cflags!': [ '-pthread' ],
'ldflags!': [ '-pthread' ],
}],
],
}],
[ 'OS=="android"', {
'defines': ['_GLIBCXX_USE_C99_MATH'],
'libraries': [ '-llog' ],
}],
['OS=="mac"', {
'defines': ['_DARWIN_USE_64_BIT_INODE=1'],
'xcode_settings': {
'ALWAYS_SEARCH_USER_PATHS': 'NO',
'GCC_CW_ASM_SYNTAX': 'NO', # No -fasm-blocks
'GCC_DYNAMIC_NO_PIC': 'NO', # No -mdynamic-no-pic
# (Equivalent to -fPIC)
'GCC_ENABLE_CPP_EXCEPTIONS': 'NO', # -fno-exceptions
'GCC_ENABLE_CPP_RTTI': 'NO', # -fno-rtti
'GCC_ENABLE_PASCAL_STRINGS': 'NO', # No -mpascal-strings
'GCC_THREADSAFE_STATICS': 'NO', # -fno-threadsafe-statics
'PREBINDING': 'NO', # No -Wl,-prebind
'MACOSX_DEPLOYMENT_TARGET': '10.5', # -mmacosx-version-min=10.5
'USE_HEADERMAP': 'NO',
'OTHER_CFLAGS': [
'-fno-strict-aliasing',
],
'WARNING_CFLAGS': [
'-Wall',
'-Wendif-labels',
'-W',
'-Wno-unused-parameter',
],
},
'target_conditions': [
['_type!="static_library"', {
'xcode_settings': {'OTHER_LDFLAGS': ['-Wl,-search_paths_first']},
}],
],
'conditions': [
['target_arch=="ia32"', {
'xcode_settings': {'ARCHS': ['i386']},
}],
['target_arch=="x64"', {
'xcode_settings': {'ARCHS': ['x86_64']},
}],
],
}],
['OS=="freebsd" and node_use_dtrace=="true"', {
'libraries': [ '-lelf' ],
}],
['OS=="freebsd"', {
'ldflags': [
'-Wl,--export-dynamic',
],
}]
],
}
}
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