Version 3.3.3
Added support for generating Visual Studio solution and project files using GYP.
Implemented support for ARM EABI calling convention variation where floating-point arguments are passed in registers (hardfloat).
Added Object::HasOwnProperty() to the API.
Added support for compressing startup data to reduce binary size. This includes build time support and an API for the embedder to decompress the startup data before initializing V8.
Reduced the profiling hooks overhead from >400% to 25% when using ll_prof.
Performance improvements and bug fixes on all platforms.
git-svn-id: http://v8.googlecode.com/svn/trunk@7749 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/SConstruct b/SConstruct
index 3056758..fb780a2 100644
--- a/SConstruct
+++ b/SConstruct
@@ -1,4 +1,4 @@
-# Copyright 2010 the V8 project authors. All rights reserved.
+# Copyright 2011 the V8 project authors. All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
@@ -101,17 +101,10 @@
'mode:debug': {
'CCFLAGS': ['-g', '-O0'],
'CPPDEFINES': ['ENABLE_DISASSEMBLER', 'DEBUG'],
- 'os:android': {
- 'CCFLAGS': ['-mthumb']
- }
},
'mode:release': {
'CCFLAGS': ['-O3', '-fomit-frame-pointer', '-fdata-sections',
'-ffunction-sections'],
- 'os:android': {
- 'CCFLAGS': ['-mthumb', '-Os'],
- 'CPPDEFINES': ['SK_RELEASE', 'NDEBUG']
- }
},
'os:linux': {
'CCFLAGS': ['-ansi'] + GCC_EXTRA_CCFLAGS,
@@ -161,6 +154,24 @@
},
'unalignedaccesses:off' : {
'CPPDEFINES' : ['CAN_USE_UNALIGNED_ACCESSES=0']
+ },
+ 'armeabi:soft' : {
+ 'CPPDEFINES' : ['USE_EABI_HARDFLOAT=0'],
+ 'simulator:none': {
+ 'CCFLAGS': ['-mfloat-abi=soft'],
+ }
+ },
+ 'armeabi:softfp' : {
+ 'CPPDEFINES' : ['USE_EABI_HARDFLOAT=0'],
+ 'simulator:none': {
+ 'CCFLAGS': ['-mfloat-abi=softfp'],
+ }
+ },
+ 'armeabi:hard' : {
+ 'CPPDEFINES' : ['USE_EABI_HARDFLOAT=1', 'CAN_USE_VFP_INSTRUCTIONS'],
+ 'simulator:none': {
+ 'CCFLAGS': ['-mfloat-abi=hard'],
+ }
}
},
'simulator:arm': {
@@ -208,6 +219,9 @@
},
'gdbjit:on': {
'CPPDEFINES': ['ENABLE_GDB_JIT_INTERFACE']
+ },
+ 'compress_startup_data:bz2': {
+ 'CPPDEFINES': ['COMPRESS_STARTUP_DATA_BZ2']
}
},
'msvc': {
@@ -293,6 +307,11 @@
'os:macos': {
'WARNINGFLAGS': ['-pedantic']
},
+ 'arch:arm': {
+ # This is to silence warnings about ABI changes that some versions of the
+ # CodeSourcery G++ tool chain produce for each occurrence of varargs.
+ 'WARNINGFLAGS': ['-Wno-abi']
+ },
'disassembler:on': {
'CPPDEFINES': ['ENABLE_DISASSEMBLER']
}
@@ -345,6 +364,11 @@
'os:win32': {
'LIBS': ['winmm', 'ws2_32'],
},
+ 'compress_startup_data:bz2': {
+ 'os:linux': {
+ 'LIBS': ['bz2']
+ }
+ },
},
'msvc': {
'all': {
@@ -376,7 +400,10 @@
},
'gcc': {
'all': {
- 'LIBPATH': [abspath('.')]
+ 'LIBPATH': [abspath('.')],
+ 'CCFLAGS': ['$DIALECTFLAGS', '$WARNINGFLAGS'],
+ 'CXXFLAGS': ['$CCFLAGS', '-fno-rtti', '-fno-exceptions'],
+ 'LINKFLAGS': ['$CCFLAGS'],
},
'os:linux': {
'LIBS': ['pthread'],
@@ -426,8 +453,10 @@
},
'gcc': {
'all': {
- 'LIBPATH': ['.'],
- 'CCFLAGS': ['-fno-rtti', '-fno-exceptions']
+ 'LIBPATH': ['.'],
+ 'CCFLAGS': ['$DIALECTFLAGS', '$WARNINGFLAGS'],
+ 'CXXFLAGS': ['$CCFLAGS', '-fno-rtti', '-fno-exceptions'],
+ 'LINKFLAGS': ['$CCFLAGS'],
},
'os:linux': {
'LIBS': ['pthread'],
@@ -452,7 +481,25 @@
'LIBS': ['winmm', 'ws2_32']
},
'arch:arm': {
- 'LINKFLAGS': ARM_LINK_FLAGS
+ 'LINKFLAGS': ARM_LINK_FLAGS,
+ 'armeabi:soft' : {
+ 'CPPDEFINES' : ['USE_EABI_HARDFLOAT=0'],
+ 'simulator:none': {
+ 'CCFLAGS': ['-mfloat-abi=soft'],
+ }
+ },
+ 'armeabi:softfp' : {
+ 'CPPDEFINES' : ['USE_EABI_HARDFLOAT=0'],
+ 'simulator:none': {
+ 'CCFLAGS': ['-mfloat-abi=softfp'],
+ }
+ },
+ 'armeabi:hard' : {
+ 'CPPDEFINES' : ['USE_EABI_HARDFLOAT=1', 'CAN_USE_VFP_INSTRUCTIONS'],
+ 'simulator:none': {
+ 'CCFLAGS': ['-mfloat-abi=hard'],
+ }
+ }
},
'arch:ia32': {
'CCFLAGS': ['-m32'],
@@ -485,6 +532,12 @@
'CCFLAGS': ['-g', '-O0'],
'CPPDEFINES': ['DEBUG']
},
+ 'compress_startup_data:bz2': {
+ 'CPPDEFINES': ['COMPRESS_STARTUP_DATA_BZ2'],
+ 'os:linux': {
+ 'LIBS': ['bz2']
+ }
+ },
},
'msvc': {
'all': {
@@ -554,14 +607,32 @@
},
'gcc': {
'all': {
- 'LIBPATH': ['.'],
- 'CCFLAGS': ['-fno-rtti', '-fno-exceptions']
+ 'LIBPATH': ['.'],
+ 'CCFLAGS': ['$DIALECTFLAGS', '$WARNINGFLAGS'],
+ 'CXXFLAGS': ['$CCFLAGS', '-fno-rtti', '-fno-exceptions'],
+ 'LINKFLAGS': ['$CCFLAGS'],
},
'os:win32': {
'LIBS': ['winmm', 'ws2_32']
},
'arch:arm': {
- 'LINKFLAGS': ARM_LINK_FLAGS
+ 'LINKFLAGS': ARM_LINK_FLAGS,
+ 'armeabi:soft' : {
+ 'CPPDEFINES' : ['USE_EABI_HARDFLOAT=0'],
+ 'simulator:none': {
+ 'CCFLAGS': ['-mfloat-abi=soft'],
+ }
+ },
+ 'armeabi:softfp' : {
+ 'simulator:none': {
+ 'CCFLAGS': ['-mfloat-abi=softfp'],
+ }
+ },
+ 'armeabi:hard' : {
+ 'simulator:none': {
+ 'CCFLAGS': ['-mfloat-abi=hard'],
+ }
+ }
},
'arch:ia32': {
'CCFLAGS': ['-m32'],
@@ -681,6 +752,11 @@
D8_FLAGS = {
'gcc': {
+ 'all': {
+ 'CCFLAGS': ['$DIALECTFLAGS', '$WARNINGFLAGS'],
+ 'CXXFLAGS': ['$CCFLAGS', '-fno-rtti', '-fno-exceptions'],
+ 'LINKFLAGS': ['$CCFLAGS'],
+ },
'console:readline': {
'LIBS': ['readline']
},
@@ -779,7 +855,7 @@
'help': 'the architecture to build for'
},
'os': {
- 'values': ['freebsd', 'linux', 'macos', 'win32', 'android', 'openbsd', 'solaris', 'cygwin'],
+ 'values': ['freebsd', 'linux', 'macos', 'win32', 'openbsd', 'solaris', 'cygwin'],
'guess': GuessOS,
'help': 'the os to build for'
},
@@ -917,6 +993,11 @@
'default': 'off',
'help': 'select profile guided optimization variant',
},
+ 'armeabi': {
+ 'values': ['hard', 'softfp', 'soft'],
+ 'default': 'softfp',
+ 'help': 'generate calling conventiont according to selected ARM EABI variant'
+ },
'mipsabi': {
'values': ['hardfloat', 'softfloat', 'none'],
'default': 'hardfloat',
@@ -926,7 +1007,12 @@
'values': ['mips32r2', 'mips32r1'],
'default': 'mips32r2',
'help': 'mips variant'
- }
+ },
+ 'compress_startup_data': {
+ 'values': ['off', 'bz2'],
+ 'default': 'off',
+ 'help': 'compress startup data (snapshot) [Linux only]'
+ },
}
ALL_OPTIONS = dict(PLATFORM_OPTIONS, **SIMPLE_OPTIONS)
@@ -1049,6 +1135,8 @@
print env['arch']
print env['simulator']
Abort("Option unalignedaccesses only supported for the ARM architecture.")
+ if env['os'] != 'linux' and env['compress_startup_data'] != 'off':
+ Abort("Startup data compression is only available on Linux")
for (name, option) in ALL_OPTIONS.iteritems():
if (not name in env):
message = ("A value for option %s must be specified (%s)." %