From e5564a3f29e0a818832a97c7c3b28d7c8b3b0460 Mon Sep 17 00:00:00 2001 From: Ryan Dahl Date: Fri, 8 Jul 2011 16:40:11 -0700 Subject: [PATCH] Upgrade V8 to 3.4.10 --- deps/v8/.gitignore | 4 + deps/v8/AUTHORS | 8 +- deps/v8/ChangeLog | 462 + deps/v8/SConstruct | 580 +- deps/v8/include/v8-debug.h | 45 +- deps/v8/include/v8-preparser.h | 13 +- deps/v8/include/v8-profiler.h | 188 +- deps/v8/include/v8-testing.h | 5 + deps/v8/include/v8.h | 676 +- deps/v8/preparser/SConscript | 38 + deps/v8/preparser/preparser-process.cc | 407 +- deps/v8/samples/process.cc | 6 +- deps/v8/samples/shell.cc | 456 +- deps/v8/src/SConscript | 93 +- deps/v8/src/accessors.cc | 309 +- deps/v8/src/accessors.h | 2 + .../codegen-x64-inl.h => allocation-inl.h} | 19 +- deps/v8/src/allocation.cc | 82 - deps/v8/src/allocation.h | 51 +- deps/v8/src/api.cc | 3510 ++++-- deps/v8/src/api.h | 111 +- deps/v8/src/apinatives.js | 10 +- deps/v8/src/apiutils.h | 7 - deps/v8/src/arguments.h | 29 +- deps/v8/src/arm/assembler-arm-inl.h 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b/deps/v8/.gitignore index db57d1bb32..72196753bc 100644 --- a/deps/v8/.gitignore +++ b/deps/v8/.gitignore @@ -19,13 +19,17 @@ d8 d8_g shell shell_g +/build/gyp /obj/ /test/es5conform/data/ /test/mozilla/data/ /test/sputnik/sputniktests/ +/test/test262/data/ /tools/oom_dump/oom_dump /tools/oom_dump/oom_dump.o /tools/visual_studio/Debug /tools/visual_studio/Release /xcodebuild/ TAGS +Makefile +*.Makefile diff --git a/deps/v8/AUTHORS b/deps/v8/AUTHORS index 92b69cb686..d4e35fe800 100644 --- a/deps/v8/AUTHORS +++ b/deps/v8/AUTHORS @@ -7,7 +7,9 @@ Google Inc. Sigma Designs Inc. ARM Ltd. Hewlett-Packard Development Company, LP +Igalia, S.L. +Akinori MUSHA Alexander Botero-Lowry Alexander Karpinsky Alexandre Vassalotti @@ -24,17 +26,21 @@ Jay Freeman Joel Stanley John Jozwiak Kun Zhang -Matt Hanselman Martyn Capewell +Matt Hanselman +Maxim Mossienko Michael Smith Mike Gilbert Paolo Giarrusso Patrick Gansterer +Peter Varga Rafal Krypa Rene Rebe +Robert Mustacchi Rodolph Perfetta Ryan Dahl Sanjoy Das Subrato K De Vlad Burlik +Yuqiang Xian Zaheer Ahmad diff --git a/deps/v8/ChangeLog b/deps/v8/ChangeLog index 7936058e26..ad57e3317d 100644 --- a/deps/v8/ChangeLog +++ b/deps/v8/ChangeLog @@ -1,3 +1,462 @@ +2011-07-06: Version 3.4.10 + + Fixed debugger not breaking on certain "if" statements (issue 1523). + + Fixed assertion failure in runtime profiler when running on IA32 + without snapshot (issue 1522). + + Fixed ABI for API calls on IA32 (for clang compatibility). + + Introduced code flushing of RegExp code to free memory used by + RegExps sooner. + + Fixed linux-tick-processor built wrong version of v8 (issue 1532). + + Fixed assertion failure in v8::TryCache::StackTrace (issue 1529). + + Performance improvements on all platforms. + + +2011-07-04: Version 3.4.9 + + Added support for debugger inspection of locals in optimized frames + (issue 1140). + + Fixed SConstruct to pass correct defines to samples/preparser when + building with library=shared. + + Made date parser handle ES5 Date Time Strings correctly (issue 1498). + + Fixed a bug in Object.defineProperty on the arguments object. + + Performance improvements on all platforms. + + +2011-06-29: Version 3.4.8 + + Ensure 16-byte stack alignment on Solaris (issue 1505). + + Fix "illegal access" when calling parseInt with a radix + that is not a smi. (issue 1246). + + +2011-06-27: Version 3.4.7 + + Fixed 64-bit build on FreeBSD. + + Added API to set the property attributes for the prototype + property on functions created from FunctionTemplates. + + Bugfixes and performance work. + + +2011-06-22: Version 3.4.6 + + Lowered limit on code space for systems with low memory supply. + + Allowed compiling v8_shell with the 'host' toolset (issue 82437). + + Extended setBreakpoint API to accept partial script name (issue 1418). + + Made multi-line comments not count when deciding whether the '-->' + comment starter is first on a line. This matches Safari. + + Made handling of non-array recievers in Array length setter correct + (issue 1491). + + Added ability to heap profiler to iterate over snapshot's node + (issue 1481). + + +2011-06-20: Version 3.4.5 + + Fixed issues 794, 1097, 1215(partial), 1417, 1435, 1472, 1473, + 1476, and 1477. + + Improved code generation for !0 and !1. + + Reduced memory usage for regular expressions with nested qualifiers. + (issue 1472) + + Fixed V8 to count line terminators in multi-line comments. + (Chromium issue 86431) + + Fixed disassembler=on option for release-mode builds. (issue 1473) + + Performance improvements on all platforms. + + +2011-06-15: Version 3.4.4 + + Added snapshot compression support and --stress-opt flag to d8. + + Improved performance of try/catch. + + Several GYP-related changes: Added support for building Xcode project + files. Make the ARM simulator build with GYP again. Generate Makefiles + for all architectures on Linux. + + Fixed Array.prototype.{reduce,reduceRight} to pass undefined as the + receiver for strict mode callbacks. (issue 1436) + + Fixed a bug where an array load was incorrectly hoisted by GVN. + + Handle 'undefined' correctly when === has been specialized for doubles. + (issue 1434) + + Corrected the limit of local variables in an optimized function from 64 + to 63. + + Correctly set ReadOnly flag on indexed properties when using the API Set + method. (issue 1470) + + Give the correct error message when Object.isExtensible is called on a + non-object. (issue 1452) + + Added GetOwnPropertyNames method for Object in the API. Patch by Peter + Varga. + + Do not redefine properties unneccesarily in seal and freeze. (issue + 1447) + + IsExecutionTerminating has an Isolate parameter now. + + Distinguish keyed loads with a symbol key from fast elements loads, + avoiding some useless deoptimizations. (issue 1471) + + +2011-06-08: Version 3.4.3 + + Clear the global thread table when an isolate is disposed + (issue 1433). + + Converted time zone name to UTF8 on Windows (issue 1290). + + Limited the number of arguments in a function call to 32766 + (issue 1413). + + Compress sources of JS libraries in addition to the snapshot. + + Fixed a bug in Lithium environment iteration. + + Performance improvements on all platforms. + + +2011-06-06: Version 3.4.2 + + More work on ES-Harmony proxies. Still hidden behind a flag. + + Fixed some crash bugs and improved performance. + + Fixed building with gdb debugging support. + + Do not install SIGPROF handler until it is needed. + + Added DateTimeFormat to i18n API. + + Fixed compilation on OpenBSD. + + Take the ulimit into account when sizing the heap. OpenBSD users + may still have to increase the default ulimit to run heavy pages in + the browser. + + +2011-06-01: Version 3.4.1 + + Fixed JSON stringify issue with arrays. + + Changed calls to JS builtins to be passed undefined when called with + implicit receiver. + + Implemented the set trap for Harmony proxies. Proxies still need to + be enabled with the --harmony-proxies flag. + + +2011-05-30: Version 3.4.0 + + Changed calls to undefined property setters to not throw (issue 1355). + + Made RegExp objects not callable. + + Fixed issues on special case large JSON strings in new json parser + (issues http://crbug.com/83877 and http://crbug.com/84186). + + Performance improvements on all platforms. + + +2011-05-25: Version 3.3.10 + + Fixed calls of strict mode function with an implicit receiver. + + Fixed fast handling of arrays to properly deal with changes to the + Object prototype (issue 1403). + + Changed strict mode poison pill to be the same type error function + (issue 1387). + + Fixed a debug crash in arguments object handling (issue 1227). + + Fixed a bug in deoptimization on x64 (issue 1404). + + Performance improvements and bug fixes on all platforms. + + +2011-05-23: Version 3.3.9 + + Added DateTimeFormat class to experimental i18n API. + + Extended preparser to give early errors for some strict mode + restrictions. + + Removed legacy execScript function from V8. + + Extended isolate API with the ability to add embedder-specific + data to an isolate. + + Added basic support for polymorphic loads from JS and external + arrays. + + Fixed bug in handling of switch statements in the optimizing + compiler. + + +2011-05-18: Version 3.3.8 + + Added MarkIndependent to the persistent handle API. Independent + handles are independent of all other persistent handles and can be + garbage collected more frequently. + + Implemented the get trap for Harmony proxies. Proxies are enabled + with the --harmony-proxies flag. + + Performance improvements and bug fixes on all platforms. + + +2011-05-16: Version 3.3.7 + + Updated MIPS infrastructure files. + + Performance improvements and bug fixes on all platforms. + + +2011-05-11: Version 3.3.6 + + Updated MIPS infrastructure files. + + Added method IsCallable for Object to the API. + Patch by Peter Varga. + + +2011-05-09: Version 3.3.5 + + Fixed build on FreeBSD. Patch by Akinori MUSHA. + + Added check that receiver is JSObject on API calls. + + Implemented CallAsConstructor method for Object in the API (Issue 1348). + Patch by Peter Varga. + + Added CallAsFunction method to the Object class in the API (Issue 1336). + Patch by Peter Varga. + + Added per-isolate locking and unlocking. + + Fixed bug in x64 >>> operator (Issue 1359). + + +2011-05-04: Version 3.3.4 + + Implemented API to disallow code generation from strings for a context + (issue 1258). + + Fixed bug with whitespaces in parseInt (issue 955). + + Fixed bug with == comparison of Date objects (issue 1356). + + Added GYP variables for ARM code generation: + v8_can_use_vfp_instructions, v8_can_use_unaligned_accesses + and v8_use_arm_eabi_hardfloat. + + +2011-05-02: 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. + + +2011-04-27: Version 3.3.2 + + Fixed crash bug on ARM with no VFP3 hardware. + + Fixed compilation of V8 without debugger support. + + Improved performance on JSLint. + + Added support Float64 WebGL arrays. + + Fixed crash bug in regexp replace. + + +2011-04-20: Version 3.3.1 + + Reduced V8 binary size by removing virtual functions from hydrogen. + + Fixed crash bug on x64. + + Performance improvements on ARM and IA32. + + +2011-04-18: Version 3.3.0 + + Fixed bug in floating point rounding in Crankshaft on ARM + (issue 958) + + Fixed a number of issues with running without VFPv3 support on ARM + (issue 1315) + + Introduced v8Locale.Collator, a partial implementation of Collator + per last ECMAScript meeting + mailing list. + + Minor performance improvements and bug fixes. + + +2011-04-13: Version 3.2.10 + + Fixed bug in external float arrays on ARM (issue 1323). + + Minor performance improvements and bug fixes. + + +2011-04-11: Version 3.2.9 + + Removed support for ABI prior to EABI on ARM. + + Fixed multiple crash bugs. + + Added GCMole to the repository, a simple static analysis tool that + searches for GC-unsafe evaluation order dependent callsites. + + Made preparser API be exported in shared libraries. + + Fixed multiple issues in EcmaScript 5 strict mode implementation. + + Fixed mutable __proto__ property if object is not extensible + (Issue 1309). + + Fixed auto suspension of the sampler thread. + + +2011-04-06: Version 3.2.8 + + Exposed WebGL typed array constructors in the shell sample. + + Performance improvements on all platforms. + + +2011-04-04: Version 3.2.7 + + Disabled the original 'classic' V8 code generator. Crankshaft is + now the default on all platforms. + + Changed the heap profiler to use more descriptive names. + + Performance and stability improvements to isolates on all platforms. + + +2011-03-30: Version 3.2.6 + + Fixed xcode build warning in shell.cc (out of order initialization). + + Fixed null-pointer dereference in the compiler when running without + SSE3 support (Chromium issue 77654). + + Fixed x64 compilation error due to some dead code. (Issue 1286) + + Introduced scons target to build the preparser stand-alone example. + + Made FreeBSD build and pass all tests. + + +2011-03-28: Version 3.2.5 + + Fixed build with Irregexp interpreter (issue 1266). + + Added Crankshaft support for external arrays. + + Fixed two potential crash bugs. + + +2011-03-23: Version 3.2.4 + + Added isolates which allows several V8 instances in the same process. + This is controlled through the new Isolate class in the API. + + Implemented more of EcmaScript 5 strict mode. + + Reduced the time it takes to make detailed heap snapshot. + + Added a number of commands to the ARM simulator and enhanced the ARM + disassembler. + + +2011-03-17: Version 3.2.3 + + Fixed a number of crash bugs. + + Fixed Array::New(length) to return an array with a length (issue 1256). + + Fixed FreeBSD build. + + Changed __defineGetter__ to not throw (matching the behavior of Safari). + + Implemented more of EcmaScript 5 strict mode. + + Improved Crankshaft performance on all platforms. + + +2011-03-14: Version 3.2.2 + + Fixed a number of crash and correctness bugs. + + Improved Crankshaft performance on all platforms. + + Fixed Crankshaft on Solaris/Illumos. + + +2011-03-10: Version 3.2.1 + + Fixed a number of crash bugs. + + Improved Crankshaft for x64 and ARM. + + Implemented more of EcmaScript 5 strict mode. + + +2011-03-07: Version 3.2.0 + + Fixed a number of crash bugs. + + Turned on Crankshaft by default on x64 and ARM. + + Improved Crankshaft for x64 and ARM. + + Implemented more of EcmaScript 5 strict mode. + + 2011-03-02: Version 3.1.8 Fixed a number of crash bugs. @@ -2564,3 +3023,6 @@ Initial export. +# Local Variables: +# mode:text +# End: diff --git a/deps/v8/SConstruct b/deps/v8/SConstruct index d76f708b83..7ee9f136ab 100644 --- a/deps/v8/SConstruct +++ b/deps/v8/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: @@ -36,13 +36,6 @@ root_dir = dirname(File('SConstruct').rfile().abspath) sys.path.insert(0, join(root_dir, 'tools')) import js2c, utils -# ANDROID_TOP is the top of the Android checkout, fetched from the environment -# variable 'TOP'. You will also need to set the CXX, CC, AR and RANLIB -# environment variables to the cross-compiling tools. -ANDROID_TOP = os.environ.get('TOP') -if ANDROID_TOP is None: - ANDROID_TOP="" - # ARM_TARGET_LIB is the path to the dynamic library to use on the target # machine if cross-compiling to an arm machine. You will also need to set # the additional cross-compiling environment variables to the cross compiler. @@ -58,50 +51,6 @@ else: GCC_EXTRA_CCFLAGS = [] GCC_DTOA_EXTRA_CCFLAGS = [] -ANDROID_FLAGS = ['-march=armv7-a', - '-mtune=cortex-a8', - '-mfloat-abi=softfp', - '-mfpu=vfp', - '-fpic', - '-mthumb-interwork', - '-funwind-tables', - '-fstack-protector', - '-fno-short-enums', - '-fmessage-length=0', - '-finline-functions', - '-fno-inline-functions-called-once', - '-fgcse-after-reload', - '-frerun-cse-after-loop', - '-frename-registers', - '-fomit-frame-pointer', - '-finline-limit=64', - '-DCAN_USE_VFP_INSTRUCTIONS=1', - '-DCAN_USE_ARMV7_INSTRUCTIONS=1', - '-DCAN_USE_UNALIGNED_ACCESSES=1', - '-MD'] - -ANDROID_INCLUDES = [ANDROID_TOP + '/bionic/libc/arch-arm/include', - ANDROID_TOP + '/bionic/libc/include', - ANDROID_TOP + '/bionic/libstdc++/include', - ANDROID_TOP + '/bionic/libc/kernel/common', - ANDROID_TOP + '/bionic/libc/kernel/arch-arm', - ANDROID_TOP + '/bionic/libm/include', - ANDROID_TOP + '/bionic/libm/include/arch/arm', - ANDROID_TOP + '/bionic/libthread_db/include', - ANDROID_TOP + '/frameworks/base/include', - ANDROID_TOP + '/system/core/include'] - -ANDROID_LINKFLAGS = ['-nostdlib', - '-Bdynamic', - '-Wl,-T,' + ANDROID_TOP + '/build/core/armelf.x', - '-Wl,-dynamic-linker,/system/bin/linker', - '-Wl,--gc-sections', - '-Wl,-z,nocopyreloc', - '-Wl,-rpath-link=' + ANDROID_TOP + '/out/target/product/generic/obj/lib', - ANDROID_TOP + '/out/target/product/generic/obj/lib/crtbegin_dynamic.o', - ANDROID_TOP + '/prebuilt/linux-x86/toolchain/arm-eabi-4.4.0/lib/gcc/arm-eabi/4.4.0/interwork/libgcc.a', - ANDROID_TOP + '/out/target/product/generic/obj/lib/crtend_android.o']; - LIBRARY_FLAGS = { 'all': { 'CPPPATH': [join(root_dir, 'src')], @@ -129,6 +78,9 @@ LIBRARY_FLAGS = { 'inspector:on': { 'CPPDEFINES': ['INSPECTOR'], }, + 'fasttls:on': { + 'CPPDEFINES': ['V8_FAST_TLS'], + }, 'liveobjectlist:on': { 'CPPDEFINES': ['ENABLE_DEBUGGER_SUPPORT', 'INSPECTOR', 'LIVE_OBJECT_LIST', 'OBJECT_PRINT'], @@ -137,7 +89,7 @@ LIBRARY_FLAGS = { 'gcc': { 'all': { 'CCFLAGS': ['$DIALECTFLAGS', '$WARNINGFLAGS'], - 'CXXFLAGS': ['$CCFLAGS', '-fno-rtti', '-fno-exceptions'], + 'CXXFLAGS': ['-fno-rtti', '-fno-exceptions'], }, 'visibility:hidden': { # Use visibility=default to disable this. @@ -149,17 +101,10 @@ LIBRARY_FLAGS = { '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, @@ -178,6 +123,7 @@ LIBRARY_FLAGS = { 'CPPPATH' : ['/usr/local/include'], 'LIBPATH' : ['/usr/local/lib'], 'CCFLAGS': ['-ansi'], + 'LIBS': ['execinfo'] }, 'os:openbsd': { 'CPPPATH' : ['/usr/local/include'], @@ -196,14 +142,6 @@ LIBRARY_FLAGS = { 'CCFLAGS': ['-DWIN32'], 'CXXFLAGS': ['-DWIN32'], }, - 'os:android': { - 'CPPDEFINES': ['ANDROID', '__ARM_ARCH_5__', '__ARM_ARCH_5T__', - '__ARM_ARCH_5E__', '__ARM_ARCH_5TE__'], - 'CCFLAGS': ANDROID_FLAGS, - 'WARNINGFLAGS': ['-Wall', '-Wno-unused', '-Werror=return-type', - '-Wstrict-aliasing=2'], - 'CPPPATH': ANDROID_INCLUDES, - }, 'arch:ia32': { 'CPPDEFINES': ['V8_TARGET_ARCH_IA32'], 'CCFLAGS': ['-m32'], @@ -216,6 +154,24 @@ LIBRARY_FLAGS = { }, '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', 'CAN_USE_VFP_INSTRUCTIONS'], + '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': { @@ -224,14 +180,40 @@ LIBRARY_FLAGS = { }, 'arch:mips': { 'CPPDEFINES': ['V8_TARGET_ARCH_MIPS'], + 'mips_arch_variant:mips32r2': { + 'CPPDEFINES': ['_MIPS_ARCH_MIPS32R2'] + }, 'simulator:none': { - 'CCFLAGS': ['-EL', '-mips32r2', '-Wa,-mips32r2', '-fno-inline'], - 'LDFLAGS': ['-EL'] + 'CCFLAGS': ['-EL'], + 'LINKFLAGS': ['-EL'], + 'mips_arch_variant:mips32r2': { + 'CCFLAGS': ['-mips32r2', '-Wa,-mips32r2'] + }, + 'mips_arch_variant:mips32r1': { + 'CCFLAGS': ['-mips32', '-Wa,-mips32'] + }, + 'library:static': { + 'LINKFLAGS': ['-static', '-static-libgcc'] + }, + 'mipsabi:softfloat': { + 'CCFLAGS': ['-msoft-float'], + 'LINKFLAGS': ['-msoft-float'] + }, + 'mipsabi:hardfloat': { + 'CCFLAGS': ['-mhard-float'], + 'LINKFLAGS': ['-mhard-float'] + } } }, 'simulator:mips': { 'CCFLAGS': ['-m32'], 'LINKFLAGS': ['-m32'], + 'mipsabi:softfloat': { + 'CPPDEFINES': ['__mips_soft_float=1'], + }, + 'mipsabi:hardfloat': { + 'CPPDEFINES': ['__mips_hard_float=1'], + } }, 'arch:x64': { 'CPPDEFINES': ['V8_TARGET_ARCH_X64'], @@ -240,12 +222,15 @@ LIBRARY_FLAGS = { }, 'gdbjit:on': { 'CPPDEFINES': ['ENABLE_GDB_JIT_INTERFACE'] + }, + 'compress_startup_data:bz2': { + 'CPPDEFINES': ['COMPRESS_STARTUP_DATA_BZ2'] } }, 'msvc': { 'all': { 'CCFLAGS': ['$DIALECTFLAGS', '$WARNINGFLAGS'], - 'CXXFLAGS': ['$CCFLAGS', '/GR-', '/Gy'], + 'CXXFLAGS': ['/GR-', '/Gy'], 'CPPDEFINES': ['WIN32'], 'LINKFLAGS': ['/INCREMENTAL:NO', '/NXCOMPAT', '/IGNORE:4221'], 'CCPDBFLAGS': ['/Zi'] @@ -306,6 +291,7 @@ V8_EXTRA_FLAGS = { 'gcc': { 'all': { 'WARNINGFLAGS': ['-Wall', + '-Werror', '-W', '-Wno-unused-parameter', '-Wnon-virtual-dtor'] @@ -324,6 +310,11 @@ V8_EXTRA_FLAGS = { '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'] } @@ -344,6 +335,9 @@ V8_EXTRA_FLAGS = { }, 'arch:mips': { 'CPPDEFINES': ['V8_TARGET_ARCH_MIPS'], + 'mips_arch_variant:mips32r2': { + 'CPPDEFINES': ['_MIPS_ARCH_MIPS32R2'] + }, }, 'disassembler:on': { 'CPPDEFINES': ['ENABLE_DISASSEMBLER'] @@ -373,6 +367,11 @@ MKSNAPSHOT_EXTRA_FLAGS = { 'os:win32': { 'LIBS': ['winmm', 'ws2_32'], }, + 'compress_startup_data:bz2': { + 'os:linux': { + 'LIBS': ['bz2'] + } + }, }, 'msvc': { 'all': { @@ -401,10 +400,16 @@ DTOA_EXTRA_FLAGS = { CCTEST_EXTRA_FLAGS = { 'all': { 'CPPPATH': [join(root_dir, 'src')], + 'library:shared': { + 'CPPDEFINES': ['USING_V8_SHARED'] + }, }, 'gcc': { 'all': { - 'LIBPATH': [abspath('.')] + 'LIBPATH': [abspath('.')], + 'CCFLAGS': ['$DIALECTFLAGS', '$WARNINGFLAGS'], + 'CXXFLAGS': ['-fno-rtti', '-fno-exceptions'], + 'LINKFLAGS': ['$CCFLAGS'], }, 'os:linux': { 'LIBS': ['pthread'], @@ -425,19 +430,6 @@ CCTEST_EXTRA_FLAGS = { 'os:win32': { 'LIBS': ['winmm', 'ws2_32'] }, - 'os:android': { - 'CPPDEFINES': ['ANDROID', '__ARM_ARCH_5__', '__ARM_ARCH_5T__', - '__ARM_ARCH_5E__', '__ARM_ARCH_5TE__'], - 'CCFLAGS': ANDROID_FLAGS, - 'CPPPATH': ANDROID_INCLUDES, - 'LIBPATH': [ANDROID_TOP + '/out/target/product/generic/obj/lib', - ANDROID_TOP + '/prebuilt/linux-x86/toolchain/arm-eabi-4.4.0/lib/gcc/arm-eabi/4.4.0/interwork'], - 'LINKFLAGS': ANDROID_LINKFLAGS, - 'LIBS': ['log', 'c', 'stdc++', 'm', 'gcc'], - 'mode:release': { - 'CPPDEFINES': ['SK_RELEASE', 'NDEBUG'] - } - }, 'arch:arm': { 'LINKFLAGS': ARM_LINK_FLAGS }, @@ -447,9 +439,6 @@ CCTEST_EXTRA_FLAGS = { 'CPPDEFINES': ['_HAS_EXCEPTIONS=0'], 'LIBS': ['winmm', 'ws2_32'] }, - 'library:shared': { - 'CPPDEFINES': ['USING_V8_SHARED'] - }, 'arch:ia32': { 'CPPDEFINES': ['V8_TARGET_ARCH_IA32'] }, @@ -464,11 +453,16 @@ CCTEST_EXTRA_FLAGS = { SAMPLE_FLAGS = { 'all': { 'CPPPATH': [join(abspath('.'), 'include')], + 'library:shared': { + 'CPPDEFINES': ['USING_V8_SHARED'] + }, }, 'gcc': { 'all': { - 'LIBPATH': ['.'], - 'CCFLAGS': ['-fno-rtti', '-fno-exceptions'] + 'LIBPATH': ['.'], + 'CCFLAGS': ['$DIALECTFLAGS', '$WARNINGFLAGS'], + 'CXXFLAGS': ['-fno-rtti', '-fno-exceptions'], + 'LINKFLAGS': ['$CCFLAGS'], }, 'os:linux': { 'LIBS': ['pthread'], @@ -477,36 +471,44 @@ SAMPLE_FLAGS = { 'LIBS': ['pthread'], }, 'os:freebsd': { - 'LIBPATH' : ['/usr/local/lib'], - 'LIBS': ['execinfo', 'pthread'] + 'LIBPATH' : ['/usr/local/lib'], + 'LIBS': ['execinfo', 'pthread'] }, 'os:solaris': { - 'LIBPATH' : ['/usr/local/lib'], - 'LIBS': ['m', 'pthread', 'socket', 'nsl', 'rt'], - 'LINKFLAGS': ['-mt'] + # On Solaris, to get isinf, INFINITY, fpclassify and other macros one + # needs to define __C99FEATURES__. + 'CPPDEFINES': ['__C99FEATURES__'], + 'LIBPATH' : ['/usr/local/lib'], + 'LIBS': ['m', 'pthread', 'socket', 'nsl', 'rt'], + 'LINKFLAGS': ['-mt'] }, 'os:openbsd': { - 'LIBPATH' : ['/usr/local/lib'], - 'LIBS': ['execinfo', 'pthread'] + 'LIBPATH' : ['/usr/local/lib'], + 'LIBS': ['execinfo', 'pthread'] }, 'os:win32': { 'LIBS': ['winmm', 'ws2_32'] }, - 'os:android': { - 'CPPDEFINES': ['ANDROID', '__ARM_ARCH_5__', '__ARM_ARCH_5T__', - '__ARM_ARCH_5E__', '__ARM_ARCH_5TE__'], - 'CCFLAGS': ANDROID_FLAGS, - 'CPPPATH': ANDROID_INCLUDES, - 'LIBPATH': [ANDROID_TOP + '/out/target/product/generic/obj/lib', - ANDROID_TOP + '/prebuilt/linux-x86/toolchain/arm-eabi-4.4.0/lib/gcc/arm-eabi/4.4.0/interwork'], - 'LINKFLAGS': ANDROID_LINKFLAGS, - 'LIBS': ['log', 'c', 'stdc++', 'm', 'gcc'], - 'mode:release': { - 'CPPDEFINES': ['SK_RELEASE', 'NDEBUG'] - } - }, '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'], @@ -518,10 +520,29 @@ SAMPLE_FLAGS = { }, 'arch:mips': { 'CPPDEFINES': ['V8_TARGET_ARCH_MIPS'], + 'mips_arch_variant:mips32r2': { + 'CPPDEFINES': ['_MIPS_ARCH_MIPS32R2'] + }, 'simulator:none': { - 'CCFLAGS': ['-EL', '-mips32r2', '-Wa,-mips32r2', '-fno-inline'], + 'CCFLAGS': ['-EL'], 'LINKFLAGS': ['-EL'], - 'LDFLAGS': ['-EL'] + 'mips_arch_variant:mips32r2': { + 'CCFLAGS': ['-mips32r2', '-Wa,-mips32r2'] + }, + 'mips_arch_variant:mips32r1': { + 'CCFLAGS': ['-mips32', '-Wa,-mips32'] + }, + 'library:static': { + 'LINKFLAGS': ['-static', '-static-libgcc'] + }, + 'mipsabi:softfloat': { + 'CCFLAGS': ['-msoft-float'], + 'LINKFLAGS': ['-msoft-float'] + }, + 'mipsabi:hardfloat': { + 'CCFLAGS': ['-mhard-float'], + 'LINKFLAGS': ['-mhard-float'] + } } }, 'simulator:arm': { @@ -539,6 +560,12 @@ SAMPLE_FLAGS = { 'CCFLAGS': ['-g', '-O0'], 'CPPDEFINES': ['DEBUG'] }, + 'compress_startup_data:bz2': { + 'CPPDEFINES': ['COMPRESS_STARTUP_DATA_BZ2'], + 'os:linux': { + 'LIBS': ['bz2'] + } + }, }, 'msvc': { 'all': { @@ -551,9 +578,161 @@ SAMPLE_FLAGS = { 'verbose:on': { 'LINKFLAGS': ['/VERBOSE'] }, + 'prof:on': { + 'LINKFLAGS': ['/MAP'] + }, + 'mode:release': { + 'CCFLAGS': ['/O2'], + 'LINKFLAGS': ['/OPT:REF', '/OPT:ICF'], + 'msvcrt:static': { + 'CCFLAGS': ['/MT'] + }, + 'msvcrt:shared': { + 'CCFLAGS': ['/MD'] + }, + 'msvcltcg:on': { + 'CCFLAGS': ['/GL'], + 'pgo:off': { + 'LINKFLAGS': ['/LTCG'], + }, + }, + 'pgo:instrument': { + 'LINKFLAGS': ['/LTCG:PGI'] + }, + 'pgo:optimize': { + 'LINKFLAGS': ['/LTCG:PGO'] + } + }, + 'arch:ia32': { + 'CPPDEFINES': ['V8_TARGET_ARCH_IA32', 'WIN32'], + 'LINKFLAGS': ['/MACHINE:X86'] + }, + 'arch:x64': { + 'CPPDEFINES': ['V8_TARGET_ARCH_X64', 'WIN32'], + 'LINKFLAGS': ['/MACHINE:X64', '/STACK:2091752'] + }, + 'mode:debug': { + 'CCFLAGS': ['/Od'], + 'LINKFLAGS': ['/DEBUG'], + 'CPPDEFINES': ['DEBUG'], + 'msvcrt:static': { + 'CCFLAGS': ['/MTd'] + }, + 'msvcrt:shared': { + 'CCFLAGS': ['/MDd'] + } + } + } +} + + +PREPARSER_FLAGS = { + 'all': { + 'CPPPATH': [join(abspath('.'), 'include'), join(abspath('.'), 'src')], 'library:shared': { 'CPPDEFINES': ['USING_V8_SHARED'] }, + }, + 'gcc': { + 'all': { + 'LIBPATH': ['.'], + 'CCFLAGS': ['$DIALECTFLAGS', '$WARNINGFLAGS'], + 'CXXFLAGS': ['-fno-rtti', '-fno-exceptions'], + 'LINKFLAGS': ['$CCFLAGS'], + }, + 'os:win32': { + 'LIBS': ['winmm', 'ws2_32'] + }, + 'arch:arm': { + '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'], + 'LINKFLAGS': ['-m32'] + }, + 'arch:x64': { + 'CCFLAGS': ['-m64'], + 'LINKFLAGS': ['-m64'] + }, + 'arch:mips': { + 'CPPDEFINES': ['V8_TARGET_ARCH_MIPS'], + 'mips_arch_variant:mips32r2': { + 'CPPDEFINES': ['_MIPS_ARCH_MIPS32R2'] + }, + 'simulator:none': { + 'CCFLAGS': ['-EL'], + 'LINKFLAGS': ['-EL'], + 'mips_arch_variant:mips32r2': { + 'CCFLAGS': ['-mips32r2', '-Wa,-mips32r2'] + }, + 'mips_arch_variant:mips32r1': { + 'CCFLAGS': ['-mips32', '-Wa,-mips32'] + }, + 'library:static': { + 'LINKFLAGS': ['-static', '-static-libgcc'] + }, + 'mipsabi:softfloat': { + 'CCFLAGS': ['-msoft-float'], + 'LINKFLAGS': ['-msoft-float'] + }, + 'mipsabi:hardfloat': { + 'CCFLAGS': ['-mhard-float'], + 'LINKFLAGS': ['-mhard-float'] + } + } + }, + 'simulator:arm': { + 'CCFLAGS': ['-m32'], + 'LINKFLAGS': ['-m32'] + }, + 'simulator:mips': { + 'CCFLAGS': ['-m32'], + 'LINKFLAGS': ['-m32'], + 'mipsabi:softfloat': { + 'CPPDEFINES': ['__mips_soft_float=1'], + }, + 'mipsabi:hardfloat': { + 'CPPDEFINES': ['__mips_hard_float=1'], + } + }, + 'mode:release': { + 'CCFLAGS': ['-O2'] + }, + 'mode:debug': { + 'CCFLAGS': ['-g', '-O0'], + 'CPPDEFINES': ['DEBUG'] + }, + 'os:freebsd': { + 'LIBPATH' : ['/usr/local/lib'], + }, + }, + 'msvc': { + 'all': { + 'LIBS': ['winmm', 'ws2_32'] + }, + 'verbose:off': { + 'CCFLAGS': ['/nologo'], + 'LINKFLAGS': ['/NOLOGO'] + }, + 'verbose:on': { + 'LINKFLAGS': ['/VERBOSE'] + }, 'prof:on': { 'LINKFLAGS': ['/MAP'] }, @@ -580,11 +759,11 @@ SAMPLE_FLAGS = { } }, 'arch:ia32': { - 'CPPDEFINES': ['V8_TARGET_ARCH_IA32'], + 'CPPDEFINES': ['V8_TARGET_ARCH_IA32', 'WIN32'], 'LINKFLAGS': ['/MACHINE:X86'] }, 'arch:x64': { - 'CPPDEFINES': ['V8_TARGET_ARCH_X64'], + 'CPPDEFINES': ['V8_TARGET_ARCH_X64', 'WIN32'], 'LINKFLAGS': ['/MACHINE:X64', '/STACK:2091752'] }, 'mode:debug': { @@ -604,6 +783,11 @@ SAMPLE_FLAGS = { D8_FLAGS = { 'gcc': { + 'all': { + 'CCFLAGS': ['$DIALECTFLAGS', '$WARNINGFLAGS'], + 'CXXFLAGS': ['-fno-rtti', '-fno-exceptions'], + 'LINKFLAGS': ['$CCFLAGS'], + }, 'console:readline': { 'LIBS': ['readline'] }, @@ -623,18 +807,18 @@ D8_FLAGS = { 'os:openbsd': { 'LIBS': ['pthread'], }, - 'os:android': { - 'LIBPATH': [ANDROID_TOP + '/out/target/product/generic/obj/lib', - ANDROID_TOP + '/prebuilt/linux-x86/toolchain/arm-eabi-4.4.0/lib/gcc/arm-eabi/4.4.0/interwork'], - 'LINKFLAGS': ANDROID_LINKFLAGS, - 'LIBS': ['log', 'c', 'stdc++', 'm', 'gcc'], - }, 'os:win32': { 'LIBS': ['winmm', 'ws2_32'], }, 'arch:arm': { 'LINKFLAGS': ARM_LINK_FLAGS }, + 'compress_startup_data:bz2': { + 'CPPDEFINES': ['COMPRESS_STARTUP_DATA_BZ2'], + 'os:linux': { + 'LIBS': ['bz2'] + } + } }, 'msvc': { 'all': { @@ -686,12 +870,14 @@ def GuessVisibility(env): def GuessStrictAliasing(env): - # There seems to be a problem with gcc 4.5.x - # see http://code.google.com/p/v8/issues/detail?id=884 - # it can be worked around by disabling strict aliasing + # There seems to be a problem with gcc 4.5.x. + # See http://code.google.com/p/v8/issues/detail?id=884 + # It can be worked around by disabling strict aliasing. toolchain = env['toolchain']; if toolchain == 'gcc': env = Environment(tools=['gcc']) + # The gcc version should be available in env['CCVERSION'], + # but when scons detects msvc this value is not set. version = subprocess.Popen([env['CC'], '-dumpversion'], stdout=subprocess.PIPE).communicate()[0] if version.find('4.5') == 0: @@ -699,22 +885,25 @@ def GuessStrictAliasing(env): return 'default' -SIMPLE_OPTIONS = { - 'toolchain': { - 'values': ['gcc', 'msvc'], - 'guess': GuessToolchain, - 'help': 'the toolchain to use' +PLATFORM_OPTIONS = { + 'arch': { + 'values': ['arm', 'ia32', 'x64', 'mips'], + 'guess': GuessArch, + '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' }, - 'arch': { - 'values':['arm', 'ia32', 'x64', 'mips'], - 'guess': GuessArch, - 'help': 'the architecture to build for' - }, + 'toolchain': { + 'values': ['gcc', 'msvc'], + 'guess': GuessToolchain, + 'help': 'the toolchain to use' + } +} + +SIMPLE_OPTIONS = { 'regexp': { 'values': ['native', 'interpreted'], 'default': 'native', @@ -805,6 +994,12 @@ SIMPLE_OPTIONS = { 'default': 'off', 'help': 'enable the disassembler to inspect generated code' }, + 'fasttls': { + 'values': ['on', 'off'], + 'default': 'on', + 'help': 'enable fast thread local storage support ' + '(if available on the current architecture/platform)' + }, 'sourcesignatures': { 'values': ['MD5', 'timestamp'], 'default': 'MD5', @@ -823,41 +1018,55 @@ SIMPLE_OPTIONS = { 'visibility': { 'values': ['default', 'hidden'], 'guess': GuessVisibility, - 'depends': ['os', 'toolchain'], 'help': 'shared library symbol visibility' }, 'strictaliasing': { 'values': ['default', 'off'], 'guess': GuessStrictAliasing, - 'depends': ['toolchain'], 'help': 'assume strict aliasing while optimizing' }, 'pgo': { 'values': ['off', 'instrument', 'optimize'], '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', + 'help': 'generate calling conventiont according to selected mips ABI' + }, + 'mips_arch_variant': { + '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) -def AddOption(result, name, option): - if 'guess' in option: - # Option has a guess function - guess = option.get('guess') - guess_env = Environment(options=result) - # Check if all options that the guess function depends on are set - if 'depends' in option: - for dependency in option.get('depends'): - if not dependency in guess_env: - return False - default = guess(guess_env) - else: - # Option has a fixed default - default = option.get('default') - help = '%s (%s)' % (option.get('help'), ", ".join(option['values'])) - result.Add(name, help, default) - return True +def AddOptions(options, result): + guess_env = Environment(options=result) + for (name, option) in options.iteritems(): + if 'guess' in option: + # Option has a guess function + guess = option.get('guess') + default = guess(guess_env) + else: + # Option has a fixed default + default = option.get('default') + help = '%s (%s)' % (option.get('help'), ", ".join(option['values'])) + result.Add(name, help, default) def GetOptions(): @@ -867,13 +1076,8 @@ def GetOptions(): result.Add('cache', 'directory to use for scons build cache', '') result.Add('env', 'override environment settings (NAME0:value0,NAME1:value1,...)', '') result.Add('importenv', 'import environment settings (NAME0,NAME1,...)', '') - options = SIMPLE_OPTIONS - while len(options): - postpone = {} - for (name, option) in options.iteritems(): - if not AddOption(result, name, option): - postpone[name] = option - options = postpone + AddOptions(PLATFORM_OPTIONS, result) + AddOptions(SIMPLE_OPTIONS, result) return result @@ -954,8 +1158,8 @@ def VerifyOptions(env): return False if env['os'] == 'win32' and env['library'] == 'shared' and env['prof'] == 'on': Abort("Profiling on windows only supported for static library.") - if env['gdbjit'] == 'on' and (env['os'] != 'linux' or (env['arch'] != 'ia32' and env['arch'] != 'x64' and env['arch'] != 'arm')): - Abort("GDBJIT interface is supported only for Intel-compatible (ia32 or x64) Linux target.") + if env['gdbjit'] == 'on' and ((env['os'] != 'linux' and env['os'] != 'macos') or (env['arch'] != 'ia32' and env['arch'] != 'x64' and env['arch'] != 'arm')): + Abort("GDBJIT interface is supported only for Intel-compatible (ia32 or x64) Linux/OSX target.") if env['os'] == 'win32' and env['soname'] == 'on': Abort("Shared Object soname not applicable for Windows.") if env['soname'] == 'on' and env['library'] == 'static': @@ -968,7 +1172,9 @@ def VerifyOptions(env): print env['arch'] print env['simulator'] Abort("Option unalignedaccesses only supported for the ARM architecture.") - for (name, option) in SIMPLE_OPTIONS.iteritems(): + 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)." % (name, ", ".join(option['values']))) @@ -990,6 +1196,7 @@ class BuildContext(object): self.options = options self.env_overrides = env_overrides self.samples = samples + self.preparser_targets = [] self.use_snapshot = (options['snapshot'] != 'off') self.build_snapshot = (options['snapshot'] == 'on') self.flags = None @@ -1068,11 +1275,8 @@ def PostprocessOptions(options, os): if 'msvcltcg' in ARGUMENTS: print "Warning: forcing msvcltcg on as it is required for pgo (%s)" % options['pgo'] options['msvcltcg'] = 'on' - if options['arch'] == 'mips': - if ('regexp' in ARGUMENTS) and options['regexp'] == 'native': - # Print a warning if native regexp is specified for mips - print "Warning: forcing regexp to interpreted for mips" - options['regexp'] = 'interpreted' + if (options['mipsabi'] != 'none') and (options['arch'] != 'mips') and (options['simulator'] != 'mips'): + options['mipsabi'] = 'none' if options['liveobjectlist'] == 'on': if (options['debuggersupport'] != 'on') or (options['mode'] == 'release'): # Print a warning that liveobjectlist will implicitly enable the debugger @@ -1099,7 +1303,7 @@ def ParseEnvOverrides(arg, imports): def BuildSpecific(env, mode, env_overrides, tools): options = {'mode': mode} - for option in SIMPLE_OPTIONS: + for option in ALL_OPTIONS: options[option] = env[option] PostprocessOptions(options, env['os']) @@ -1119,6 +1323,7 @@ def BuildSpecific(env, mode, env_overrides, tools): dtoa_flags = context.AddRelevantFlags(library_flags, DTOA_EXTRA_FLAGS) cctest_flags = context.AddRelevantFlags(v8_flags, CCTEST_EXTRA_FLAGS) sample_flags = context.AddRelevantFlags(user_environ, SAMPLE_FLAGS) + preparser_flags = context.AddRelevantFlags(user_environ, PREPARSER_FLAGS) d8_flags = context.AddRelevantFlags(library_flags, D8_FLAGS) context.flags = { @@ -1127,13 +1332,15 @@ def BuildSpecific(env, mode, env_overrides, tools): 'dtoa': dtoa_flags, 'cctest': cctest_flags, 'sample': sample_flags, - 'd8': d8_flags + 'd8': d8_flags, + 'preparser': preparser_flags } # Generate library base name. target_id = mode suffix = SUFFIXES[target_id] library_name = 'v8' + suffix + preparser_library_name = 'v8preparser' + suffix version = GetVersion() if context.options['soname'] == 'on': # When building shared object with SONAME version the library name. @@ -1147,7 +1354,7 @@ def BuildSpecific(env, mode, env_overrides, tools): env['SONAME'] = soname # Build the object files by invoking SCons recursively. - (object_files, shell_files, mksnapshot) = env.SConscript( + (object_files, shell_files, mksnapshot, preparser_files) = env.SConscript( join('src', 'SConscript'), build_dir=join('obj', target_id), exports='context tools', @@ -1162,13 +1369,22 @@ def BuildSpecific(env, mode, env_overrides, tools): context.ApplyEnvOverrides(env) if context.options['library'] == 'static': library = env.StaticLibrary(library_name, object_files) + preparser_library = env.StaticLibrary(preparser_library_name, + preparser_files) else: # There seems to be a glitch in the way scons decides where to put # PDB files when compiling using MSVC so we specify it manually. # This should not affect any other platforms. pdb_name = library_name + '.dll.pdb' library = env.SharedLibrary(library_name, object_files, PDB=pdb_name) + preparser_pdb_name = preparser_library_name + '.dll.pdb'; + preparser_soname = 'lib' + preparser_library_name + '.so'; + preparser_library = env.SharedLibrary(preparser_library_name, + preparser_files, + PDB=preparser_pdb_name, + SONAME=preparser_soname) context.library_targets.append(library) + context.library_targets.append(preparser_library) d8_env = Environment(tools=tools) d8_env.Replace(**context.flags['d8']) @@ -1202,6 +1418,21 @@ def BuildSpecific(env, mode, env_overrides, tools): ) context.cctest_targets.append(cctest_program) + preparser_env = env.Copy() + preparser_env.Replace(**context.flags['preparser']) + preparser_env.Prepend(LIBS=[preparser_library_name]) + context.ApplyEnvOverrides(preparser_env) + preparser_object = preparser_env.SConscript( + join('preparser', 'SConscript'), + build_dir=join('obj', 'preparser', target_id), + exports='context', + duplicate=False + ) + preparser_name = join('obj', 'preparser', target_id, 'preparser') + preparser_program = preparser_env.Program(preparser_name, preparser_object); + preparser_env.Depends(preparser_program, preparser_library) + context.preparser_targets.append(preparser_program) + return context @@ -1220,6 +1451,7 @@ def Build(): mksnapshots = [] cctests = [] samples = [] + preparsers = [] d8s = [] modes = SplitList(env['mode']) for mode in modes: @@ -1228,6 +1460,7 @@ def Build(): mksnapshots += context.mksnapshot_targets cctests += context.cctest_targets samples += context.sample_targets + preparsers += context.preparser_targets d8s += context.d8_targets env.Alias('library', libraries) @@ -1235,6 +1468,7 @@ def Build(): env.Alias('cctests', cctests) env.Alias('sample', samples) env.Alias('d8', d8s) + env.Alias('preparser', preparsers) if env['sample']: env.Default('sample') diff --git a/deps/v8/include/v8-debug.h b/deps/v8/include/v8-debug.h index f17b848550..504cbfed59 100755 --- a/deps/v8/include/v8-debug.h +++ b/deps/v8/include/v8-debug.h @@ -127,7 +127,7 @@ class EXPORT Debug { /** * Get the context active when the debug event happened. Note this is not * the current active context as the JavaScript part of the debugger is - * running in it's own context which is entered at this point. + * running in its own context which is entered at this point. */ virtual Handle GetEventContext() const = 0; @@ -164,12 +164,13 @@ class EXPORT Debug { /** * Get the context active when the debug event happened. Note this is not * the current active context as the JavaScript part of the debugger is - * running in it's own context which is entered at this point. + * running in its own context which is entered at this point. */ virtual Handle GetEventContext() const = 0; /** - * Client data passed with the corresponding callbak whet it was registered. + * Client data passed with the corresponding callback when it was + * registered. */ virtual Handle GetCallbackData() const = 0; @@ -227,7 +228,7 @@ class EXPORT Debug { * Debug message callback function. * * \param message the debug message handler message object - + * * A MessageHandler does not take possession of the message data, * and must not rely on the data persisting after the handler returns. */ @@ -253,25 +254,35 @@ class EXPORT Debug { static bool SetDebugEventListener(v8::Handle that, Handle data = Handle()); - // Schedule a debugger break to happen when JavaScript code is run. - static void DebugBreak(); + // Schedule a debugger break to happen when JavaScript code is run + // in the given isolate. If no isolate is provided the default + // isolate is used. + static void DebugBreak(Isolate* isolate = NULL); - // Remove scheduled debugger break if it has not happened yet. - static void CancelDebugBreak(); + // Remove scheduled debugger break in given isolate if it has not + // happened yet. If no isolate is provided the default isolate is + // used. + static void CancelDebugBreak(Isolate* isolate = NULL); - // Break execution of JavaScript (this method can be invoked from a - // non-VM thread) for further client command execution on a VM - // thread. Client data is then passed in EventDetails to - // EventCallback at the moment when the VM actually stops. - static void DebugBreakForCommand(ClientData* data = NULL); + // Break execution of JavaScript in the given isolate (this method + // can be invoked from a non-VM thread) for further client command + // execution on a VM thread. Client data is then passed in + // EventDetails to EventCallback at the moment when the VM actually + // stops. If no isolate is provided the default isolate is used. + static void DebugBreakForCommand(ClientData* data = NULL, + Isolate* isolate = NULL); // Message based interface. The message protocol is JSON. NOTE the message // handler thread is not supported any more parameter must be false. static void SetMessageHandler(MessageHandler handler, bool message_handler_thread = false); static void SetMessageHandler2(MessageHandler2 handler); + + // If no isolate is provided the default isolate is + // used. static void SendCommand(const uint16_t* command, int length, - ClientData* client_data = NULL); + ClientData* client_data = NULL, + Isolate* isolate = NULL); // Dispatch interface. static void SetHostDispatchHandler(HostDispatchHandler handler, @@ -300,7 +311,7 @@ class EXPORT Debug { * get access to information otherwise not available during normal JavaScript * execution e.g. details on stack frames. Receiver of the function call will * be the debugger context global object, however this is a subject to change. - * The following example show a JavaScript function which when passed to + * The following example shows a JavaScript function which when passed to * v8::Debug::Call will return the current line of JavaScript execution. * * \code @@ -342,7 +353,7 @@ class EXPORT Debug { * 2. V8 is suspended on debug breakpoint; in this state V8 is dedicated * to reading and processing debug messages; * 3. V8 is not running at all or has called some long-working C++ function; - * by default it means that processing of all debug message will be deferred + * by default it means that processing of all debug messages will be deferred * until V8 gets control again; however, embedding application may improve * this by manually calling this method. * @@ -366,7 +377,7 @@ class EXPORT Debug { static void ProcessDebugMessages(); /** - * Debugger is running in it's own context which is entered while debugger + * Debugger is running in its own context which is entered while debugger * messages are being dispatched. This is an explicit getter for this * debugger context. Note that the content of the debugger context is subject * to change. diff --git a/deps/v8/include/v8-preparser.h b/deps/v8/include/v8-preparser.h index 9425f7d467..f11d05ef79 100644 --- a/deps/v8/include/v8-preparser.h +++ b/deps/v8/include/v8-preparser.h @@ -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: @@ -66,17 +66,18 @@ namespace v8 { - -class PreParserData { +// The result of preparsing is either a stack overflow error, or an opaque +// blob of data that can be passed back into the parser. +class V8EXPORT PreParserData { public: PreParserData(size_t size, const uint8_t* data) : data_(data), size_(size) { } // Create a PreParserData value where stack_overflow reports true. - static PreParserData StackOverflow() { return PreParserData(NULL, 0); } + static PreParserData StackOverflow() { return PreParserData(0, NULL); } + // Whether the pre-parser stopped due to a stack overflow. // If this is the case, size() and data() should not be used. - bool stack_overflow() { return size_ == 0u; } // The size of the data in bytes. @@ -92,7 +93,7 @@ class PreParserData { // Interface for a stream of Unicode characters. -class UnicodeInputStream { +class V8EXPORT UnicodeInputStream { // NOLINT - Thinks V8EXPORT is class name. public: virtual ~UnicodeInputStream(); diff --git a/deps/v8/include/v8-profiler.h b/deps/v8/include/v8-profiler.h index 675a229854..4febcb9596 100644 --- a/deps/v8/include/v8-profiler.h +++ b/deps/v8/include/v8-profiler.h @@ -131,6 +131,16 @@ class V8EXPORT CpuProfile { /** Returns the root node of the top down call tree. */ const CpuProfileNode* GetTopDownRoot() const; + + /** + * Deletes the profile and removes it from CpuProfiler's list. + * All pointers to nodes previously returned become invalid. + * Profiles with the same uid but obtained using different + * security token are not deleted, but become inaccessible + * using FindProfile method. It is embedder's responsibility + * to call Delete on these profiles. + */ + void Delete(); }; @@ -181,6 +191,13 @@ class V8EXPORT CpuProfiler { static const CpuProfile* StopProfiling( Handle title, Handle security_token = Handle()); + + /** + * Deletes all existing profiles, also cancelling all profiling + * activity. All previously returned pointers to profiles and their + * contents become invalid after this call. + */ + static void DeleteAllProfiles(); }; @@ -189,7 +206,7 @@ class HeapGraphNode; /** * HeapSnapshotEdge represents a directed connection between heap - * graph nodes: from retaners to retained nodes. + * graph nodes: from retainers to retained nodes. */ class V8EXPORT HeapGraphEdge { public: @@ -223,36 +240,21 @@ class V8EXPORT HeapGraphEdge { }; -class V8EXPORT HeapGraphPath { - public: - /** Returns the number of edges in the path. */ - int GetEdgesCount() const; - - /** Returns an edge from the path. */ - const HeapGraphEdge* GetEdge(int index) const; - - /** Returns origin node. */ - const HeapGraphNode* GetFromNode() const; - - /** Returns destination node. */ - const HeapGraphNode* GetToNode() const; -}; - - /** * HeapGraphNode represents a node in a heap graph. */ class V8EXPORT HeapGraphNode { public: enum Type { - kHidden = 0, // Hidden node, may be filtered when shown to user. - kArray = 1, // An array of elements. - kString = 2, // A string. - kObject = 3, // A JS object (except for arrays and strings). - kCode = 4, // Compiled code. - kClosure = 5, // Function closure. - kRegExp = 6, // RegExp. - kHeapNumber = 7 // Number stored in the heap. + kHidden = 0, // Hidden node, may be filtered when shown to user. + kArray = 1, // An array of elements. + kString = 2, // A string. + kObject = 3, // A JS object (except for arrays and strings). + kCode = 4, // Compiled code. + kClosure = 5, // Function closure. + kRegExp = 6, // RegExp. + kHeapNumber = 7, // Number stored in the heap. + kNative = 8 // Native object (not from V8 heap). }; /** Returns node type (see HeapGraphNode::Type). */ @@ -267,17 +269,10 @@ class V8EXPORT HeapGraphNode { /** * Returns node id. For the same heap object, the id remains the same - * across all snapshots. Not applicable to aggregated heap snapshots - * as they only contain aggregated instances. + * across all snapshots. */ uint64_t GetId() const; - /** - * Returns the number of instances. Only applicable to aggregated - * heap snapshots. - */ - int GetInstancesCount() const; - /** Returns node's own size, in bytes. */ int GetSelfSize() const; @@ -307,12 +302,6 @@ class V8EXPORT HeapGraphNode { /** Returns a retainer by index. */ const HeapGraphEdge* GetRetainer(int index) const; - /** Returns the number of simple retaining paths from the root to the node. */ - int GetRetainingPathsCount() const; - - /** Returns a retaining path by index. */ - const HeapGraphPath* GetRetainingPath(int index) const; - /** * Returns a dominator node. This is the node that participates in every * path from the snapshot root to the current node. @@ -321,25 +310,13 @@ class V8EXPORT HeapGraphNode { }; -class V8EXPORT HeapSnapshotsDiff { - public: - /** Returns the root node for added nodes. */ - const HeapGraphNode* GetAdditionsRoot() const; - - /** Returns the root node for deleted nodes. */ - const HeapGraphNode* GetDeletionsRoot() const; -}; - - /** * HeapSnapshots record the state of the JS heap at some moment. */ class V8EXPORT HeapSnapshot { public: enum Type { - kFull = 0, // Heap snapshot with all instances and references. - kAggregated = 1 // Snapshot doesn't contain individual heap entries, - // instead they are grouped by constructor name. + kFull = 0 // Heap snapshot with all instances and references. }; enum SerializationFormat { kJSON = 0 // See format description near 'Serialize' method. @@ -360,17 +337,24 @@ class V8EXPORT HeapSnapshot { /** Returns a node by its id. */ const HeapGraphNode* GetNodeById(uint64_t id) const; + /** Returns total nodes count in the snapshot. */ + int GetNodesCount() const; + + /** Returns a node by index. */ + const HeapGraphNode* GetNode(int index) const; + /** - * Returns a diff between this snapshot and another one. Only snapshots - * of the same type can be compared. + * Deletes the snapshot and removes it from HeapProfiler's list. + * All pointers to nodes, edges and paths previously returned become + * invalid. */ - const HeapSnapshotsDiff* CompareWith(const HeapSnapshot* snapshot) const; + void Delete(); /** * Prepare a serialized representation of the snapshot. The result * is written into the stream provided in chunks of specified size. * The total length of the serialized snapshot is unknown in - * advance, it is can be roughly equal to JS heap size (that means, + * advance, it can be roughly equal to JS heap size (that means, * it can be really big - tens of megabytes). * * For the JSON format, heap contents are represented as an object @@ -392,11 +376,22 @@ class V8EXPORT HeapSnapshot { }; +class RetainedObjectInfo; + /** * Interface for controlling heap profiling. */ class V8EXPORT HeapProfiler { public: + /** + * Callback function invoked for obtaining RetainedObjectInfo for + * the given JavaScript wrapper object. It is prohibited to enter V8 + * while the callback is running: only getters on the handle and + * GetPointerFromInternalField on the objects are allowed. + */ + typedef RetainedObjectInfo* (*WrapperInfoCallback) + (uint16_t class_id, Handle wrapper); + /** Returns the number of snapshots taken. */ static int GetSnapshotsCount(); @@ -414,6 +409,87 @@ class V8EXPORT HeapProfiler { Handle title, HeapSnapshot::Type type = HeapSnapshot::kFull, ActivityControl* control = NULL); + + /** + * Deletes all snapshots taken. All previously returned pointers to + * snapshots and their contents become invalid after this call. + */ + static void DeleteAllSnapshots(); + + /** Binds a callback to embedder's class ID. */ + static void DefineWrapperClass( + uint16_t class_id, + WrapperInfoCallback callback); + + /** + * Default value of persistent handle class ID. Must not be used to + * define a class. Can be used to reset a class of a persistent + * handle. + */ + static const uint16_t kPersistentHandleNoClassId = 0; +}; + + +/** + * Interface for providing information about embedder's objects + * held by global handles. This information is reported in two ways: + * + * 1. When calling AddObjectGroup, an embedder may pass + * RetainedObjectInfo instance describing the group. To collect + * this information while taking a heap snapshot, V8 calls GC + * prologue and epilogue callbacks. + * + * 2. When a heap snapshot is collected, V8 additionally + * requests RetainedObjectInfos for persistent handles that + * were not previously reported via AddObjectGroup. + * + * Thus, if an embedder wants to provide information about native + * objects for heap snapshots, he can do it in a GC prologue + * handler, and / or by assigning wrapper class ids in the following way: + * + * 1. Bind a callback to class id by calling DefineWrapperClass. + * 2. Call SetWrapperClassId on certain persistent handles. + * + * V8 takes ownership of RetainedObjectInfo instances passed to it and + * keeps them alive only during snapshot collection. Afterwards, they + * are freed by calling the Dispose class function. + */ +class V8EXPORT RetainedObjectInfo { // NOLINT + public: + /** Called by V8 when it no longer needs an instance. */ + virtual void Dispose() = 0; + + /** Returns whether two instances are equivalent. */ + virtual bool IsEquivalent(RetainedObjectInfo* other) = 0; + + /** + * Returns hash value for the instance. Equivalent instances + * must have the same hash value. + */ + virtual intptr_t GetHash() = 0; + + /** + * Returns human-readable label. It must be a NUL-terminated UTF-8 + * encoded string. V8 copies its contents during a call to GetLabel. + */ + virtual const char* GetLabel() = 0; + + /** + * Returns element count in case if a global handle retains + * a subgraph by holding one of its nodes. + */ + virtual intptr_t GetElementCount() { return -1; } + + /** Returns embedder's object size in bytes. */ + virtual intptr_t GetSizeInBytes() { return -1; } + + protected: + RetainedObjectInfo() {} + virtual ~RetainedObjectInfo() {} + + private: + RetainedObjectInfo(const RetainedObjectInfo&); + RetainedObjectInfo& operator=(const RetainedObjectInfo&); }; diff --git a/deps/v8/include/v8-testing.h b/deps/v8/include/v8-testing.h index 4db30a4405..245f74d878 100644 --- a/deps/v8/include/v8-testing.h +++ b/deps/v8/include/v8-testing.h @@ -87,6 +87,11 @@ class V8EXPORT Testing { * should be between 0 and one less than the result from GetStressRuns() */ static void PrepareStressRun(int run); + + /** + * Force deoptimization of all functions. + */ + static void DeoptimizeAll(); }; diff --git a/deps/v8/include/v8.h b/deps/v8/include/v8.h index 83a5744278..fb10c71576 100644 --- a/deps/v8/include/v8.h +++ b/deps/v8/include/v8.h @@ -1,4 +1,4 @@ -// Copyright 2007-2009 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: @@ -110,11 +110,12 @@ namespace internal { class Arguments; class Object; class Heap; -class Top; +class HeapObject; +class Isolate; } -// --- W e a k H a n d l e s +// --- Weak Handles --- /** @@ -130,7 +131,7 @@ typedef void (*WeakReferenceCallback)(Persistent object, void* parameter); -// --- H a n d l e s --- +// --- Handles --- #define TYPE_CHECK(T, S) \ while (false) { \ @@ -158,13 +159,12 @@ typedef void (*WeakReferenceCallback)(Persistent object, * * It is safe to extract the object stored in the handle by * dereferencing the handle (for instance, to extract the Object* from - * an Handle); the value will still be governed by a handle + * a Handle); the value will still be governed by a handle * behind the scenes and the same rules apply to these values as to * their handles. */ template class Handle { public: - /** * Creates an empty handle. */ @@ -180,7 +180,7 @@ template class Handle { * constructor allows you to pass handles as arguments by value and * to assign between handles. However, if you try to assign between * incompatible handles, for instance from a Handle to a - * Handle it will cause a compiletime error. Assigning + * Handle it will cause a compile-time error. Assigning * between compatible handles, for instance assigning a * Handle to a variable declared as Handle, is legal * because String is a subclass of Value. @@ -311,7 +311,6 @@ template class Local : public Handle { */ template class Persistent : public Handle { public: - /** * Creates an empty persistent handle that doesn't point to any * storage cell. @@ -324,7 +323,7 @@ template class Persistent : public Handle { * handles as arguments by value and to assign between persistent * handles. However, attempting to assign between incompatible * persistent handles, for instance from a Persistent to a - * Persistent will cause a compiletime error. Assigning + * Persistent will cause a compile-time error. Assigning * between compatible persistent handles, for instance assigning a * Persistent to a variable declared as Persistent, * is allowed as String is a subclass of Value. @@ -370,7 +369,7 @@ template class Persistent : public Handle { /** * Releases the storage cell referenced by this persistent handle. * Does not remove the reference to the cell from any handles. - * This handle's reference, and any any other references to the storage + * This handle's reference, and any other references to the storage * cell remain and IsEmpty will still return false. */ inline void Dispose(); @@ -386,6 +385,15 @@ template class Persistent : public Handle { /** Clears the weak reference to this object.*/ inline void ClearWeak(); + /** + * Marks the reference to this object independent. Garbage collector + * is free to ignore any object groups containing this object. + * Weak callback for an independent handle should not + * assume that it will be preceded by a global GC prologue callback + * or followed by a global GC epilogue callback. + */ + inline void MarkIndependent(); + /** *Checks if the handle holds the only reference to an object. */ @@ -396,6 +404,12 @@ template class Persistent : public Handle { */ inline bool IsWeak() const; + /** + * Assigns a wrapper class ID to the handle. See RetainedObjectInfo + * interface description in v8-profiler.h for details. + */ + inline void SetWrapperClassId(uint16_t class_id); + private: friend class ImplementationUtilities; friend class ObjectTemplate; @@ -437,6 +451,8 @@ class V8EXPORT HandleScope { * Creates a new handle with the given value. */ static internal::Object** CreateHandle(internal::Object* value); + // Faster version, uses HeapObject to obtain the current Isolate. + static internal::Object** CreateHandle(internal::HeapObject* value); private: // Make it impossible to create heap-allocated or illegal handle @@ -453,7 +469,6 @@ class V8EXPORT HandleScope { internal::Object** next; internal::Object** limit; int level; - inline void Initialize() { next = limit = NULL; level = 0; @@ -462,6 +477,7 @@ class V8EXPORT HandleScope { void Leave(); + internal::Isolate* isolate_; internal::Object** prev_next_; internal::Object** prev_limit_; @@ -474,7 +490,7 @@ class V8EXPORT HandleScope { }; -// --- S p e c i a l o b j e c t s --- +// --- Special objects --- /** @@ -568,7 +584,6 @@ class ScriptOrigin { */ class V8EXPORT Script { public: - /** * Compiles the specified script (context-independent). * @@ -766,7 +781,7 @@ class V8EXPORT StackTrace { Local AsArray(); /** - * Grab a snapshot of the the current JavaScript execution stack. + * Grab a snapshot of the current JavaScript execution stack. * * \param frame_limit The maximum number of stack frames we want to capture. * \param options Enumerates the set of things we will capture for each @@ -825,14 +840,14 @@ class V8EXPORT StackFrame { bool IsEval() const; /** - * Returns whther or not the associated function is called as a + * Returns whether or not the associated function is called as a * constructor via "new". */ bool IsConstructor() const; }; -// --- V a l u e --- +// --- Value --- /** @@ -840,7 +855,6 @@ class V8EXPORT StackFrame { */ class Value : public Data { public: - /** * Returns true if this value is the undefined value. See ECMA-262 * 4.3.10. @@ -972,7 +986,6 @@ class Boolean : public Primitive { */ class String : public Primitive { public: - /** * Returns the number of characters in this string. */ @@ -1173,7 +1186,7 @@ class String : public Primitive { * Associate an external string resource with this string by transforming it * in place so that existing references to this string in the JavaScript heap * will use the external string resource. The external string resource's - * character contents needs to be equivalent to this string. + * character contents need to be equivalent to this string. * Returns true if the string has been changed to be an external string. * The string is not modified if the operation fails. See NewExternal for * information on the lifetime of the resource. @@ -1195,7 +1208,7 @@ class String : public Primitive { * Associate an external string resource with this string by transforming it * in place so that existing references to this string in the JavaScript heap * will use the external string resource. The external string resource's - * character contents needs to be equivalent to this string. + * character contents need to be equivalent to this string. * Returns true if the string has been changed to be an external string. * The string is not modified if the operation fails. See NewExternal for * information on the lifetime of the resource. @@ -1340,87 +1353,6 @@ class Uint32 : public Integer { }; -/** - * An instance of the built-in Date constructor (ECMA-262, 15.9). - */ -class Date : public Value { - public: - V8EXPORT static Local New(double time); - - /** - * A specialization of Value::NumberValue that is more efficient - * because we know the structure of this object. - */ - V8EXPORT double NumberValue() const; - - static inline Date* Cast(v8::Value* obj); - - /** - * Notification that the embedder has changed the time zone, - * daylight savings time, or other date / time configuration - * parameters. V8 keeps a cache of various values used for - * date / time computation. This notification will reset - * those cached values for the current context so that date / - * time configuration changes would be reflected in the Date - * object. - * - * This API should not be called more than needed as it will - * negatively impact the performance of date operations. - */ - V8EXPORT static void DateTimeConfigurationChangeNotification(); - - private: - V8EXPORT static void CheckCast(v8::Value* obj); -}; - - -/** - * An instance of the built-in RegExp constructor (ECMA-262, 15.10). - */ -class RegExp : public Value { - public: - /** - * Regular expression flag bits. They can be or'ed to enable a set - * of flags. - */ - enum Flags { - kNone = 0, - kGlobal = 1, - kIgnoreCase = 2, - kMultiline = 4 - }; - - /** - * Creates a regular expression from the given pattern string and - * the flags bit field. May throw a JavaScript exception as - * described in ECMA-262, 15.10.4.1. - * - * For example, - * RegExp::New(v8::String::New("foo"), - * static_cast(kGlobal | kMultiline)) - * is equivalent to evaluating "/foo/gm". - */ - V8EXPORT static Local New(Handle pattern, - Flags flags); - - /** - * Returns the value of the source property: a string representing - * the regular expression. - */ - V8EXPORT Local GetSource() const; - - /** - * Returns the flags bit field. - */ - V8EXPORT Flags GetFlags() const; - - static inline RegExp* Cast(v8::Value* obj); - - private: - V8EXPORT static void CheckCast(v8::Value* obj); -}; - - enum PropertyAttribute { None = 0, ReadOnly = 1 << 0, @@ -1435,7 +1367,9 @@ enum ExternalArrayType { kExternalUnsignedShortArray, kExternalIntArray, kExternalUnsignedIntArray, - kExternalFloatArray + kExternalFloatArray, + kExternalDoubleArray, + kExternalPixelArray }; /** @@ -1530,6 +1464,13 @@ class Object : public Value { */ V8EXPORT Local GetPropertyNames(); + /** + * This function has the same functionality as GetPropertyNames but + * the returned array doesn't contain the names of properties from + * prototype objects. + */ + V8EXPORT Local GetOwnPropertyNames(); + /** * Get the prototype object. This does not skip objects marked to * be skipped by __proto__ and it does not consult the security @@ -1577,6 +1518,7 @@ class Object : public Value { V8EXPORT void SetPointerInInternalField(int index, void* value); // Testers for local properties. + V8EXPORT bool HasOwnProperty(Handle key); V8EXPORT bool HasRealNamedProperty(Handle key); V8EXPORT bool HasRealIndexedProperty(uint32_t index); V8EXPORT bool HasRealNamedCallbackProperty(Handle key); @@ -1609,8 +1551,8 @@ class Object : public Value { V8EXPORT void TurnOnAccessCheck(); /** - * Returns the identity hash for this object. The current implemenation uses - * a hidden property on the object to store the identity hash. + * Returns the identity hash for this object. The current implementation + * uses a hidden property on the object to store the identity hash. * * The return value will never be 0. Also, it is not guaranteed to be * unique. @@ -1642,6 +1584,11 @@ class Object : public Value { */ V8EXPORT Local Clone(); + /** + * Returns the context in which the object was created. + */ + V8EXPORT Local CreationContext(); + /** * Set the backing store of the indexed properties to be managed by the * embedding layer. Access to the indexed properties will follow the rules @@ -1670,8 +1617,32 @@ class Object : public Value { V8EXPORT ExternalArrayType GetIndexedPropertiesExternalArrayDataType(); V8EXPORT int GetIndexedPropertiesExternalArrayDataLength(); + /** + * Checks whether a callback is set by the + * ObjectTemplate::SetCallAsFunctionHandler method. + * When an Object is callable this method returns true. + */ + V8EXPORT bool IsCallable(); + + /** + * Call an Object as a function if a callback is set by the + * ObjectTemplate::SetCallAsFunctionHandler method. + */ + V8EXPORT Local CallAsFunction(Handle recv, + int argc, + Handle argv[]); + + /** + * Call an Object as a constructor if a callback is set by the + * ObjectTemplate::SetCallAsFunctionHandler method. + * Note: This method behaves like the Function::NewInstance method. + */ + V8EXPORT Local CallAsConstructor(int argc, + Handle argv[]); + V8EXPORT static Local New(); static inline Object* Cast(Value* obj); + private: V8EXPORT Object(); V8EXPORT static void CheckCast(Value* obj); @@ -1699,7 +1670,12 @@ class Array : public Object { */ V8EXPORT Local CloneElementAt(uint32_t index); + /** + * Creates a JavaScript array with the given length. If the length + * is negative the returned array will have length 0. + */ V8EXPORT static Local New(int length = 0); + static inline Array* Cast(Value* obj); private: V8EXPORT Array(); @@ -1734,6 +1710,87 @@ class Function : public Object { }; +/** + * An instance of the built-in Date constructor (ECMA-262, 15.9). + */ +class Date : public Object { + public: + V8EXPORT static Local New(double time); + + /** + * A specialization of Value::NumberValue that is more efficient + * because we know the structure of this object. + */ + V8EXPORT double NumberValue() const; + + static inline Date* Cast(v8::Value* obj); + + /** + * Notification that the embedder has changed the time zone, + * daylight savings time, or other date / time configuration + * parameters. V8 keeps a cache of various values used for + * date / time computation. This notification will reset + * those cached values for the current context so that date / + * time configuration changes would be reflected in the Date + * object. + * + * This API should not be called more than needed as it will + * negatively impact the performance of date operations. + */ + V8EXPORT static void DateTimeConfigurationChangeNotification(); + + private: + V8EXPORT static void CheckCast(v8::Value* obj); +}; + + +/** + * An instance of the built-in RegExp constructor (ECMA-262, 15.10). + */ +class RegExp : public Object { + public: + /** + * Regular expression flag bits. They can be or'ed to enable a set + * of flags. + */ + enum Flags { + kNone = 0, + kGlobal = 1, + kIgnoreCase = 2, + kMultiline = 4 + }; + + /** + * Creates a regular expression from the given pattern string and + * the flags bit field. May throw a JavaScript exception as + * described in ECMA-262, 15.10.4.1. + * + * For example, + * RegExp::New(v8::String::New("foo"), + * static_cast(kGlobal | kMultiline)) + * is equivalent to evaluating "/foo/gm". + */ + V8EXPORT static Local New(Handle pattern, + Flags flags); + + /** + * Returns the value of the source property: a string representing + * the regular expression. + */ + V8EXPORT Local GetSource() const; + + /** + * Returns the flags bit field. + */ + V8EXPORT Flags GetFlags() const; + + static inline RegExp* Cast(v8::Value* obj); + + private: + V8EXPORT static void CheckCast(v8::Value* obj); +}; + + /** * A JavaScript value that wraps a C++ void*. This type of value is * mainly used to associate C++ data structures with JavaScript @@ -1761,7 +1818,7 @@ class External : public Value { }; -// --- T e m p l a t e s --- +// --- Templates --- /** @@ -2086,6 +2143,13 @@ class V8EXPORT FunctionTemplate : public Template { */ void SetHiddenPrototype(bool value); + /** + * Sets the property attributes of the 'prototype' property of functions + * created from this FunctionTemplate. Can be any combination of ReadOnly, + * DontEnum and DontDelete. + */ + void SetPrototypeAttributes(int attributes); + /** * Returns true if the given object is an instance of this function * template. @@ -2198,7 +2262,7 @@ class V8EXPORT ObjectTemplate : public Template { * * \param getter The callback to invoke when getting a property. * \param setter The callback to invoke when setting a property. - * \param query The callback to invoke to check is an object has a property. + * \param query The callback to invoke to check if an object has a property. * \param deleter The callback to invoke when deleting a property. * \param enumerator The callback to invoke to enumerate all the indexed * properties of an object. @@ -2295,7 +2359,7 @@ class V8EXPORT TypeSwitch : public Data { }; -// --- E x t e n s i o n s --- +// --- Extensions --- /** @@ -2347,7 +2411,7 @@ class V8EXPORT DeclareExtension { }; -// --- S t a t i c s --- +// --- Statics --- Handle V8EXPORT Undefined(); @@ -2388,7 +2452,7 @@ class V8EXPORT ResourceConstraints { bool V8EXPORT SetResourceConstraints(ResourceConstraints* constraints); -// --- E x c e p t i o n s --- +// --- Exceptions --- typedef void (*FatalErrorCallback)(const char* location, const char* message); @@ -2419,7 +2483,7 @@ class V8EXPORT Exception { }; -// --- C o u n t e r s C a l l b a c k s --- +// --- Counters Callbacks --- typedef int* (*CounterLookupCallback)(const char* name); @@ -2430,7 +2494,7 @@ typedef void* (*CreateHistogramCallback)(const char* name, typedef void (*AddHistogramSampleCallback)(void* histogram, int sample); -// --- M e m o r y A l l o c a t i o n C a l l b a c k --- +// --- Memory Allocation Callback --- enum ObjectSpace { kObjectSpaceNewSpace = 1 << 0, kObjectSpaceOldPointerSpace = 1 << 1, @@ -2454,12 +2518,20 @@ typedef void (*MemoryAllocationCallback)(ObjectSpace space, AllocationAction action, int size); -// --- F a i l e d A c c e s s C h e c k C a l l b a c k --- +// --- Failed Access Check Callback --- typedef void (*FailedAccessCheckCallback)(Local target, AccessType type, Local data); -// --- G a r b a g e C o l l e c t i o n C a l l b a c k s +// --- AllowCodeGenerationFromStrings callbacks --- + +/** + * Callback to check if code generation from strings is allowed. See + * Context::AllowCodeGenerationFromStrings. + */ +typedef bool (*AllowCodeGenerationFromStringsCallback)(Local context); + +// --- Garbage Collection Callbacks --- /** * Applications can register callback functions which will be called @@ -2485,23 +2557,6 @@ typedef void (*GCEpilogueCallback)(GCType type, GCCallbackFlags flags); typedef void (*GCCallback)(); -/** - * Profiler modules. - * - * In V8, profiler consists of several modules: CPU profiler, and different - * kinds of heap profiling. Each can be turned on / off independently. - * When PROFILER_MODULE_HEAP_SNAPSHOT flag is passed to ResumeProfilerEx, - * modules are enabled only temporarily for making a snapshot of the heap. - */ -enum ProfilerModules { - PROFILER_MODULE_NONE = 0, - PROFILER_MODULE_CPU = 1, - PROFILER_MODULE_HEAP_STATS = 1 << 1, - PROFILER_MODULE_JS_CONSTRUCTORS = 1 << 2, - PROFILER_MODULE_HEAP_SNAPSHOT = 1 << 16 -}; - - /** * Collection of V8 heap information. * @@ -2533,6 +2588,139 @@ class V8EXPORT HeapStatistics { }; +class RetainedObjectInfo; + +/** + * Isolate represents an isolated instance of the V8 engine. V8 + * isolates have completely separate states. Objects from one isolate + * must not be used in other isolates. When V8 is initialized a + * default isolate is implicitly created and entered. The embedder + * can create additional isolates and use them in parallel in multiple + * threads. An isolate can be entered by at most one thread at any + * given time. The Locker/Unlocker API can be used to synchronize. + */ +class V8EXPORT Isolate { + public: + /** + * Stack-allocated class which sets the isolate for all operations + * executed within a local scope. + */ + class V8EXPORT Scope { + public: + explicit Scope(Isolate* isolate) : isolate_(isolate) { + isolate->Enter(); + } + + ~Scope() { isolate_->Exit(); } + + private: + Isolate* const isolate_; + + // Prevent copying of Scope objects. + Scope(const Scope&); + Scope& operator=(const Scope&); + }; + + /** + * Creates a new isolate. Does not change the currently entered + * isolate. + * + * When an isolate is no longer used its resources should be freed + * by calling Dispose(). Using the delete operator is not allowed. + */ + static Isolate* New(); + + /** + * Returns the entered isolate for the current thread or NULL in + * case there is no current isolate. + */ + static Isolate* GetCurrent(); + + /** + * Methods below this point require holding a lock (using Locker) in + * a multi-threaded environment. + */ + + /** + * Sets this isolate as the entered one for the current thread. + * Saves the previously entered one (if any), so that it can be + * restored when exiting. Re-entering an isolate is allowed. + */ + void Enter(); + + /** + * Exits this isolate by restoring the previously entered one in the + * current thread. The isolate may still stay the same, if it was + * entered more than once. + * + * Requires: this == Isolate::GetCurrent(). + */ + void Exit(); + + /** + * Disposes the isolate. The isolate must not be entered by any + * thread to be disposable. + */ + void Dispose(); + + /** + * Associate embedder-specific data with the isolate + */ + void SetData(void* data); + + /** + * Retrive embedder-specific data from the isolate. + * Returns NULL if SetData has never been called. + */ + void* GetData(); + + private: + Isolate(); + Isolate(const Isolate&); + ~Isolate(); + Isolate& operator=(const Isolate&); + void* operator new(size_t size); + void operator delete(void*, size_t); +}; + + +class StartupData { + public: + enum CompressionAlgorithm { + kUncompressed, + kBZip2 + }; + + const char* data; + int compressed_size; + int raw_size; +}; + + +/** + * A helper class for driving V8 startup data decompression. It is based on + * "CompressedStartupData" API functions from the V8 class. It isn't mandatory + * for an embedder to use this class, instead, API functions can be used + * directly. + * + * For an example of the class usage, see the "shell.cc" sample application. + */ +class V8EXPORT StartupDataDecompressor { // NOLINT + public: + StartupDataDecompressor(); + virtual ~StartupDataDecompressor(); + int Decompress(); + + protected: + virtual int DecompressData(char* raw_data, + int* raw_data_size, + const char* compressed_data, + int compressed_data_size) = 0; + + private: + char** raw_data; +}; + /** * Container class for static utility functions. */ @@ -2541,6 +2729,13 @@ class V8EXPORT V8 { /** Set the callback to invoke in case of fatal errors. */ static void SetFatalErrorHandler(FatalErrorCallback that); + /** + * Set the callback to invoke to check if code generation from + * strings should be allowed. + */ + static void SetAllowCodeGenerationFromStringsCallback( + AllowCodeGenerationFromStringsCallback that); + /** * Ignore out-of-memory exceptions. * @@ -2548,7 +2743,7 @@ class V8EXPORT V8 { * This means that the fatal error handler is called and that V8 is * terminated. * - * IgnoreOutOfMemoryException can be used to not treat a + * IgnoreOutOfMemoryException can be used to not treat an * out-of-memory situation as a fatal error. This way, the contexts * that did not cause the out of memory problem might be able to * continue execution. @@ -2561,10 +2756,34 @@ class V8EXPORT V8 { */ static bool IsDead(); + /** + * The following 4 functions are to be used when V8 is built with + * the 'compress_startup_data' flag enabled. In this case, the + * embedder must decompress startup data prior to initializing V8. + * + * This is how interaction with V8 should look like: + * int compressed_data_count = v8::V8::GetCompressedStartupDataCount(); + * v8::StartupData* compressed_data = + * new v8::StartupData[compressed_data_count]; + * v8::V8::GetCompressedStartupData(compressed_data); + * ... decompress data (compressed_data can be updated in-place) ... + * v8::V8::SetDecompressedStartupData(compressed_data); + * ... now V8 can be initialized + * ... make sure the decompressed data stays valid until V8 shutdown + * + * A helper class StartupDataDecompressor is provided. It implements + * the protocol of the interaction described above, and can be used in + * most cases instead of calling these API functions directly. + */ + static StartupData::CompressionAlgorithm GetCompressedStartupDataAlgorithm(); + static int GetCompressedStartupDataCount(); + static void GetCompressedStartupData(StartupData* compressed_data); + static void SetDecompressedStartupData(StartupData* decompressed_data); + /** * Adds a message listener. * - * The same message listener can be added more than once and it that + * The same message listener can be added more than once and in that * case it will be called more than once for each message. */ static bool AddMessageListener(MessageCallback that, @@ -2702,8 +2921,22 @@ class V8EXPORT V8 { * intended to be used in the before-garbage-collection callback * function, for instance to simulate DOM tree connections among JS * wrapper objects. + * See v8-profiler.h for RetainedObjectInfo interface description. + */ + static void AddObjectGroup(Persistent* objects, + size_t length, + RetainedObjectInfo* info = NULL); + + /** + * Allows the host application to declare implicit references between + * the objects: if |parent| is alive, all |children| are alive too. + * After each garbage collection, all implicit references + * are removed. It is intended to be used in the before-garbage-collection + * callback function. */ - static void AddObjectGroup(Persistent* objects, size_t length); + static void AddImplicitReferences(Persistent parent, + Persistent* children, + size_t length); /** * Initializes from snapshot if possible. Otherwise, attempts to @@ -2750,40 +2983,6 @@ class V8EXPORT V8 { */ static bool IsProfilerPaused(); - /** - * Resumes specified profiler modules. Can be called several times to - * mark the opening of a profiler events block with the given tag. - * - * "ResumeProfiler" is equivalent to "ResumeProfilerEx(PROFILER_MODULE_CPU)". - * See ProfilerModules enum. - * - * \param flags Flags specifying profiler modules. - * \param tag Profile tag. - */ - static void ResumeProfilerEx(int flags, int tag = 0); - - /** - * Pauses specified profiler modules. Each call to "PauseProfilerEx" closes - * a block of profiler events opened by a call to "ResumeProfilerEx" with the - * same tag value. There is no need for blocks to be properly nested. - * The profiler is paused when the last opened block is closed. - * - * "PauseProfiler" is equivalent to "PauseProfilerEx(PROFILER_MODULE_CPU)". - * See ProfilerModules enum. - * - * \param flags Flags specifying profiler modules. - * \param tag Profile tag. - */ - static void PauseProfilerEx(int flags, int tag = 0); - - /** - * Returns active (resumed) profiler modules. - * See ProfilerModules enum. - * - * \returns active profiler modules. - */ - static int GetActiveProfilerModules(); - /** * If logging is performed into a memory buffer (via --logfile=*), allows to * retrieve previously written messages. This can be used for retrieving @@ -2830,7 +3029,7 @@ class V8EXPORT V8 { * The termination is achieved by throwing an exception that is * uncatchable by JavaScript exception handlers. Termination * exceptions act as if they were caught by a C++ TryCatch exception - * handlers. If forceful termination is used, any C++ TryCatch + * handler. If forceful termination is used, any C++ TryCatch * exception handler that catches an exception should check if that * exception is a termination exception and immediately return if * that is the case. Returning immediately in that case will @@ -2844,12 +3043,16 @@ class V8EXPORT V8 { static void TerminateExecution(int thread_id); /** - * Forcefully terminate the current thread of JavaScript execution. + * Forcefully terminate the current thread of JavaScript execution + * in the given isolate. If no isolate is provided, the default + * isolate is used. * * This method can be used by any thread even if that thread has not * acquired the V8 lock with a Locker object. + * + * \param isolate The isolate in which to terminate the current JS execution. */ - static void TerminateExecution(); + static void TerminateExecution(Isolate* isolate = NULL); /** * Is V8 terminating JavaScript execution. @@ -2858,8 +3061,10 @@ class V8EXPORT V8 { * because of a call to TerminateExecution. In that case there are * still JavaScript frames on the stack and the termination * exception is still active. + * + * \param isolate The isolate in which to check. */ - static bool IsExecutionTerminating(); + static bool IsExecutionTerminating(Isolate* isolate = NULL); /** * Releases any resources used by v8 and stops any utility threads @@ -2910,8 +3115,11 @@ class V8EXPORT V8 { void* data, WeakReferenceCallback); static void ClearWeak(internal::Object** global_handle); + static void MarkIndependent(internal::Object** global_handle); static bool IsGlobalNearDeath(internal::Object** global_handle); static bool IsGlobalWeak(internal::Object** global_handle); + static void SetWrapperClassId(internal::Object** global_handle, + uint16_t class_id); template friend class Handle; template friend class Local; @@ -2925,7 +3133,6 @@ class V8EXPORT V8 { */ class V8EXPORT TryCatch { public: - /** * Creates a new try/catch block and registers it with v8. */ @@ -3017,6 +3224,7 @@ class V8EXPORT TryCatch { void SetCaptureMessage(bool value); private: + v8::internal::Isolate* isolate_; void* next_; void* exception_; void* message_; @@ -3025,11 +3233,11 @@ class V8EXPORT TryCatch { bool capture_message_ : 1; bool rethrow_ : 1; - friend class v8::internal::Top; + friend class v8::internal::Isolate; }; -// --- C o n t e x t --- +// --- Context --- /** @@ -3164,13 +3372,28 @@ class V8EXPORT Context { void SetData(Handle data); Local GetData(); + /** + * Control whether code generation from strings is allowed. Calling + * this method with false will disable 'eval' and the 'Function' + * constructor for code running in this context. If 'eval' or the + * 'Function' constructor are used an exception will be thrown. + * + * If code generation from strings is not allowed the + * V8::AllowCodeGenerationFromStrings callback will be invoked if + * set before blocking the call to 'eval' or the 'Function' + * constructor. If that callback returns true, the call will be + * allowed, otherwise an exception will be thrown. If no callback is + * set an exception will be thrown. + */ + void AllowCodeGenerationFromStrings(bool allow); + /** * Stack-allocated class which sets the execution context for all * operations executed within a local scope. */ class Scope { public: - inline Scope(Handle context) : context_(context) { + explicit inline Scope(Handle context) : context_(context) { context_->Enter(); } inline ~Scope() { context_->Exit(); } @@ -3188,37 +3411,44 @@ class V8EXPORT Context { /** * Multiple threads in V8 are allowed, but only one thread at a time - * is allowed to use V8. The definition of 'using V8' includes - * accessing handles or holding onto object pointers obtained from V8 - * handles. It is up to the user of V8 to ensure (perhaps with - * locking) that this constraint is not violated. + * is allowed to use any given V8 isolate. See Isolate class + * comments. The definition of 'using V8 isolate' includes + * accessing handles or holding onto object pointers obtained + * from V8 handles while in the particular V8 isolate. It is up + * to the user of V8 to ensure (perhaps with locking) that this + * constraint is not violated. * - * If you wish to start using V8 in a thread you can do this by constructing - * a v8::Locker object. After the code using V8 has completed for the - * current thread you can call the destructor. This can be combined - * with C++ scope-based construction as follows: + * v8::Locker is a scoped lock object. While it's + * active (i.e. between its construction and destruction) the current thread is + * allowed to use the locked isolate. V8 guarantees that an isolate can be locked + * by at most one thread at any time. In other words, the scope of a v8::Locker is + * a critical section. * - * \code + * Sample usage: +* \code * ... * { - * v8::Locker locker; + * v8::Locker locker(isolate); + * v8::Isolate::Scope isolate_scope(isolate); * ... - * // Code using V8 goes here. + * // Code using V8 and isolate goes here. * ... * } // Destructor called here * \endcode * - * If you wish to stop using V8 in a thread A you can do this by either + * If you wish to stop using V8 in a thread A you can do this either * by destroying the v8::Locker object as above or by constructing a * v8::Unlocker object: * * \code * { - * v8::Unlocker unlocker; + * isolate->Exit(); + * v8::Unlocker unlocker(isolate); * ... * // Code not using V8 goes here while V8 can run in another thread. * ... * } // Destructor called here. + * isolate->Enter(); * \endcode * * The Unlocker object is intended for use in a long-running callback @@ -3238,38 +3468,51 @@ class V8EXPORT Context { * \code * // V8 not locked. * { - * v8::Locker locker; + * v8::Locker locker(isolate); + * Isolate::Scope isolate_scope(isolate); * // V8 locked. * { - * v8::Locker another_locker; + * v8::Locker another_locker(isolate); * // V8 still locked (2 levels). * { - * v8::Unlocker unlocker; + * isolate->Exit(); + * v8::Unlocker unlocker(isolate); * // V8 not locked. * } + * isolate->Enter(); * // V8 locked again (2 levels). * } * // V8 still locked (1 level). * } * // V8 Now no longer locked. * \endcode + * + * */ class V8EXPORT Unlocker { public: - Unlocker(); + /** + * Initialize Unlocker for a given Isolate. NULL means default isolate. + */ + explicit Unlocker(Isolate* isolate = NULL); ~Unlocker(); + private: + internal::Isolate* isolate_; }; class V8EXPORT Locker { public: - Locker(); + /** + * Initialize Locker for a given Isolate. NULL means default isolate. + */ + explicit Locker(Isolate* isolate = NULL); ~Locker(); /** * Start preemption. * - * When preemption is started, a timer is fired every n milli seconds + * When preemption is started, a timer is fired every n milliseconds * that will switch between multiple threads that are in contention * for the V8 lock. */ @@ -3281,9 +3524,10 @@ class V8EXPORT Locker { static void StopPreemption(); /** - * Returns whether or not the locker is locked by the current thread. + * Returns whether or not the locker for a given isolate, or default isolate if NULL is given, + * is locked by the current thread. */ - static bool IsLocked(); + static bool IsLocked(Isolate* isolate = NULL); /** * Returns whether v8::Locker is being used by this V8 instance. @@ -3293,6 +3537,7 @@ class V8EXPORT Locker { private: bool has_lock_; bool top_level_; + internal::Isolate* isolate_; static bool active_; @@ -3349,7 +3594,7 @@ class V8EXPORT ActivityControl { // NOLINT }; -// --- I m p l e m e n t a t i o n --- +// --- Implementation --- namespace internal { @@ -3434,22 +3679,21 @@ template <> struct InternalConstants<8> { */ class Internals { public: - // These values match non-compiler-dependent values defined within // the implementation of v8. static const int kHeapObjectMapOffset = 0; - static const int kMapInstanceTypeOffset = kApiPointerSize + kApiIntSize; + static const int kMapInstanceTypeOffset = 1 * kApiPointerSize + kApiIntSize; static const int kStringResourceOffset = InternalConstants::kStringResourceOffset; - static const int kProxyProxyOffset = kApiPointerSize; + static const int kForeignAddressOffset = kApiPointerSize; static const int kJSObjectHeaderSize = 3 * kApiPointerSize; static const int kFullStringRepresentationMask = 0x07; static const int kExternalTwoByteRepresentationTag = 0x02; - static const int kJSObjectType = 0xa0; + static const int kJSObjectType = 0xa3; static const int kFirstNonstringType = 0x80; - static const int kProxyType = 0x85; + static const int kForeignType = 0x85; static inline bool HasHeapObjectTag(internal::Object* value) { return ((reinterpret_cast(value) & kHeapObjectTagMask) == @@ -3478,8 +3722,8 @@ class Internals { static inline void* GetExternalPointer(internal::Object* obj) { if (HasSmiTag(obj)) { return GetExternalPointerFromSmi(obj); - } else if (GetInstanceType(obj) == kProxyType) { - return ReadField(obj, kProxyProxyOffset); + } else if (GetInstanceType(obj) == kForeignType) { + return ReadField(obj, kForeignAddressOffset); } else { return NULL; } @@ -3495,6 +3739,14 @@ class Internals { uint8_t* addr = reinterpret_cast(ptr) + offset - kHeapObjectTag; return *reinterpret_cast(addr); } + + static inline bool CanCastToHeapObject(void* o) { return false; } + static inline bool CanCastToHeapObject(Context* o) { return true; } + static inline bool CanCastToHeapObject(String* o) { return true; } + static inline bool CanCastToHeapObject(Object* o) { return true; } + static inline bool CanCastToHeapObject(Message* o) { return true; } + static inline bool CanCastToHeapObject(StackTrace* o) { return true; } + static inline bool CanCastToHeapObject(StackFrame* o) { return true; } }; } // namespace internal @@ -3511,7 +3763,12 @@ Local::Local() : Handle() { } template Local Local::New(Handle that) { if (that.IsEmpty()) return Local(); - internal::Object** p = reinterpret_cast(*that); + T* that_ptr = *that; + internal::Object** p = reinterpret_cast(that_ptr); + if (internal::Internals::CanCastToHeapObject(that_ptr)) { + return Local(reinterpret_cast(HandleScope::CreateHandle( + reinterpret_cast(*p)))); + } return Local(reinterpret_cast(HandleScope::CreateHandle(*p))); } @@ -3560,6 +3817,15 @@ void Persistent::ClearWeak() { V8::ClearWeak(reinterpret_cast(**this)); } +template +void Persistent::MarkIndependent() { + V8::MarkIndependent(reinterpret_cast(**this)); +} + +template +void Persistent::SetWrapperClassId(uint16_t class_id) { + V8::SetWrapperClassId(reinterpret_cast(**this), class_id); +} Arguments::Arguments(internal::Object** implicit_args, internal::Object** values, int length, diff --git a/deps/v8/preparser/SConscript b/deps/v8/preparser/SConscript new file mode 100644 index 0000000000..1d51e826cc --- /dev/null +++ b/deps/v8/preparser/SConscript @@ -0,0 +1,38 @@ +# 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: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following +# disclaimer in the documentation and/or other materials provided +# with the distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived +# from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +from os.path import join +Import('context') + +def ConfigureObjectFiles(): + env = Environment() + env.Replace(**context.flags['preparser']) + context.ApplyEnvOverrides(env) + return env.Object('preparser-process.cc') + +preparser_object = ConfigureObjectFiles() +Return('preparser_object') diff --git a/deps/v8/preparser/preparser-process.cc b/deps/v8/preparser/preparser-process.cc index 26dfc42b53..d7c96f0c73 100644 --- a/deps/v8/preparser/preparser-process.cc +++ b/deps/v8/preparser/preparser-process.cc @@ -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: @@ -27,105 +27,79 @@ #include #include +#include +#include + #include "../include/v8stdint.h" #include "../include/v8-preparser.h" -#include "unicode-inl.h" -enum ResultCode { kSuccess = 0, kErrorReading = 1, kErrorWriting = 2 }; +#include "../src/preparse-data-format.h" -namespace v8 { -namespace internal { +namespace i = v8::internal; -// THIS FILE IS PROOF-OF-CONCEPT ONLY. -// The final goal is a stand-alone preparser library. +// This file is only used for testing the stand-alone preparser +// library. +// The first argument must be the path of a JavaScript source file, or +// the flags "-e" and the next argument is then the source of a JavaScript +// program. +// Optionally this can be followed by the word "throws" (case sensitive), +// which signals that the parsing is expected to throw - the default is +// to expect the parsing to not throw. +// The command line can further be followed by a message text (the +// *type* of the exception to throw), and even more optionally, the +// start and end position reported with the exception. +// +// This source file is preparsed and tested against the expectations, and if +// successful, the resulting preparser data is written to stdout. +// Diagnostic output is output on stderr. +// The source file must contain only ASCII characters (UTF-8 isn't supported). +// The file is read into memory, so it should have a reasonable size. -class UTF8InputStream : public v8::UnicodeInputStream { +// Adapts an ASCII string to the UnicodeInputStream interface. +class AsciiInputStream : public v8::UnicodeInputStream { public: - UTF8InputStream(uint8_t* buffer, size_t length) + AsciiInputStream(const uint8_t* buffer, size_t length) : buffer_(buffer), - offset_(0), - pos_(0), - end_offset_(static_cast(length)) { } + end_offset_(static_cast(length)), + offset_(0) { } - virtual ~UTF8InputStream() { } + virtual ~AsciiInputStream() { } virtual void PushBack(int32_t ch) { - // Pushback assumes that the character pushed back is the - // one that was most recently read, and jumps back in the - // UTF-8 stream by the length of that character's encoding. - offset_ -= unibrow::Utf8::Length(ch); - pos_--; + offset_--; #ifdef DEBUG - if (static_cast(ch) <= unibrow::Utf8::kMaxOneByteChar) { - if (ch != buffer_[offset_]) { - fprintf(stderr, "Invalid pushback: '%c'.", ch); - exit(1); - } - } else { - unsigned tmp = 0; - if (static_cast(ch) != - unibrow::Utf8::CalculateValue(buffer_ + offset_, - end_offset_ - offset_, - &tmp)) { - fprintf(stderr, "Invalid pushback: 0x%x.", ch); - exit(1); - } + if (offset_ < 0 || + (ch != ((offset_ >= end_offset_) ? -1 : buffer_[offset_]))) { + fprintf(stderr, "Invalid pushback: '%c' at offset %d.", ch, offset_); + exit(1); } #endif } virtual int32_t Next() { - if (offset_ == end_offset_) return -1; - uint8_t first_char = buffer_[offset_]; - if (first_char <= unibrow::Utf8::kMaxOneByteChar) { - pos_++; - offset_++; - return static_cast(first_char); + if (offset_ >= end_offset_) { + offset_++; // Increment anyway to allow symmetric pushbacks. + return -1; + } + uint8_t next_char = buffer_[offset_]; +#ifdef DEBUG + if (next_char > 0x7fu) { + fprintf(stderr, "Non-ASCII character in input: '%c'.", next_char); + exit(1); } - unibrow::uchar codepoint = - unibrow::Utf8::CalculateValue(buffer_ + offset_, - end_offset_ - offset_, - &offset_); - pos_++; - return static_cast(codepoint); +#endif + offset_++; + return static_cast(next_char); } private: const uint8_t* buffer_; - unsigned offset_; - unsigned pos_; - unsigned end_offset_; + const int end_offset_; + int offset_; }; -// Write a number to dest in network byte order. -void WriteUInt32(FILE* dest, uint32_t value, bool* ok) { - for (int i = 3; i >= 0; i--) { - uint8_t byte = static_cast(value >> (i << 3)); - int result = fputc(byte, dest); - if (result == EOF) { - *ok = false; - return; - } - } -} - -// Read number from FILE* in network byte order. -uint32_t ReadUInt32(FILE* source, bool* ok) { - uint32_t n = 0; - for (int i = 0; i < 4; i++) { - int c = fgetc(source); - if (c == EOF) { - *ok = false; - return 0; - } - n = (n << 8) + static_cast(c); - } - return n; -} - - bool ReadBuffer(FILE* source, void* buffer, size_t length) { size_t actually_read = fread(buffer, 1, length, source); return (actually_read == length); @@ -138,69 +112,268 @@ bool WriteBuffer(FILE* dest, const void* buffer, size_t length) { } +class PreparseDataInterpreter { + public: + PreparseDataInterpreter(const uint8_t* data, int length) + : data_(data), length_(length), message_(NULL) { } + + ~PreparseDataInterpreter() { + if (message_ != NULL) delete[] message_; + } + + bool valid() { + int header_length = + i::PreparseDataConstants::kHeaderSize * sizeof(int); // NOLINT + return length_ >= header_length; + } + + bool throws() { + return valid() && + word(i::PreparseDataConstants::kHasErrorOffset) != 0; + } + + const char* message() { + if (message_ != NULL) return message_; + if (!throws()) return NULL; + int text_pos = i::PreparseDataConstants::kHeaderSize + + i::PreparseDataConstants::kMessageTextPos; + int length = word(text_pos); + char* buffer = new char[length + 1]; + for (int i = 1; i <= length; i++) { + int character = word(text_pos + i); + buffer[i - 1] = character; + } + buffer[length] = '\0'; + message_ = buffer; + return buffer; + } + + int beg_pos() { + if (!throws()) return -1; + return word(i::PreparseDataConstants::kHeaderSize + + i::PreparseDataConstants::kMessageStartPos); + } + + int end_pos() { + if (!throws()) return -1; + return word(i::PreparseDataConstants::kHeaderSize + + i::PreparseDataConstants::kMessageEndPos); + } + + private: + int word(int offset) { + const int* word_data = reinterpret_cast(data_); + if (word_data + offset < reinterpret_cast(data_ + length_)) { + return word_data[offset]; + } + return -1; + } + + const uint8_t* const data_; + const int length_; + const char* message_; +}; + + template class ScopedPointer { public: + explicit ScopedPointer() : pointer_(NULL) {} explicit ScopedPointer(T* pointer) : pointer_(pointer) {} - ~ScopedPointer() { delete[] pointer_; } + ~ScopedPointer() { if (pointer_ != NULL) delete[] pointer_; } T& operator[](int index) { return pointer_[index]; } T* operator*() { return pointer_ ;} + T* operator=(T* new_value) { + if (pointer_ != NULL) delete[] pointer_; + pointer_ = new_value; + return new_value; + } private: T* pointer_; }; -// Preparse input and output result on stdout. -int PreParseIO(FILE* input) { - fprintf(stderr, "LOG: Enter parsing loop\n"); - bool ok = true; - uint32_t length = ReadUInt32(input, &ok); - fprintf(stderr, "LOG: Input length: %d\n", length); - if (!ok) return kErrorReading; - ScopedPointer buffer(new uint8_t[length]); - if (!ReadBuffer(input, *buffer, length)) { - return kErrorReading; +void fail(v8::PreParserData* data, const char* message, ...) { + va_list args; + va_start(args, message); + vfprintf(stderr, message, args); + va_end(args); + fflush(stderr); + // Print preparser data to stdout. + uint32_t size = data->size(); + fprintf(stderr, "LOG: data size: %u\n", size); + if (!WriteBuffer(stdout, data->data(), size)) { + perror("ERROR: Writing data"); + fflush(stderr); } - UTF8InputStream input_buffer(*buffer, static_cast(length)); + exit(EXIT_FAILURE); +}; - v8::PreParserData data = - v8::Preparse(&input_buffer, 64 * 1024 * sizeof(void*)); // NOLINT - if (data.stack_overflow()) { - fprintf(stderr, "LOG: Stack overflow\n"); - fflush(stderr); - // Report stack overflow error/no-preparser-data. - WriteUInt32(stdout, 0, &ok); - if (!ok) return kErrorWriting; - return 0; + +bool IsFlag(const char* arg) { + // Anything starting with '-' is considered a flag. + // It's summarily ignored for now. + return arg[0] == '-'; +} + + +struct ExceptionExpectation { + ExceptionExpectation() + : throws(false), type(NULL), beg_pos(-1), end_pos(-1) { } + bool throws; + const char* type; + int beg_pos; + int end_pos; +}; + + +void CheckException(v8::PreParserData* data, + ExceptionExpectation* expects) { + PreparseDataInterpreter reader(data->data(), data->size()); + if (expects->throws) { + if (!reader.throws()) { + if (expects->type == NULL) { + fail(data, "Didn't throw as expected\n"); + } else { + fail(data, "Didn't throw \"%s\" as expected\n", expects->type); + } + } + if (expects->type != NULL) { + const char* actual_message = reader.message(); + if (strcmp(expects->type, actual_message)) { + fail(data, "Wrong error message. Expected <%s>, found <%s> at %d..%d\n", + expects->type, actual_message, reader.beg_pos(), reader.end_pos()); + } + } + if (expects->beg_pos >= 0) { + if (expects->beg_pos != reader.beg_pos()) { + fail(data, "Wrong error start position: Expected %i, found %i\n", + expects->beg_pos, reader.beg_pos()); + } + } + if (expects->end_pos >= 0) { + if (expects->end_pos != reader.end_pos()) { + fail(data, "Wrong error end position: Expected %i, found %i\n", + expects->end_pos, reader.end_pos()); + } + } + } else if (reader.throws()) { + const char* message = reader.message(); + fail(data, "Throws unexpectedly with message: %s at location %d-%d\n", + message, reader.beg_pos(), reader.end_pos()); } +} - uint32_t size = data.size(); - fprintf(stderr, "LOG: Success, data size: %u\n", size); - fflush(stderr); - WriteUInt32(stdout, size, &ok); - if (!ok) return kErrorWriting; - if (!WriteBuffer(stdout, data.data(), size)) { - return kErrorWriting; + +ExceptionExpectation ParseExpectation(int argc, const char* argv[]) { + ExceptionExpectation expects; + + // Parse exception expectations from (the remainder of) the command line. + int arg_index = 0; + // Skip any flags. + while (argc > arg_index && IsFlag(argv[arg_index])) arg_index++; + if (argc > arg_index) { + if (strncmp("throws", argv[arg_index], 7)) { + // First argument after filename, if present, must be the verbatim + // "throws", marking that the preparsing should fail with an exception. + fail(NULL, "ERROR: Extra arguments not prefixed by \"throws\".\n"); + } + expects.throws = true; + do { + arg_index++; + } while (argc > arg_index && IsFlag(argv[arg_index])); + if (argc > arg_index) { + // Next argument is the exception type identifier. + expects.type = argv[arg_index]; + do { + arg_index++; + } while (argc > arg_index && IsFlag(argv[arg_index])); + if (argc > arg_index) { + expects.beg_pos = atoi(argv[arg_index]); // NOLINT + do { + arg_index++; + } while (argc > arg_index && IsFlag(argv[arg_index])); + if (argc > arg_index) { + expects.end_pos = atoi(argv[arg_index]); // NOLINT + } + } + } } - return 0; + return expects; } -} } // namespace v8::internal +int main(int argc, const char* argv[]) { + // Parse command line. + // Format: preparser ( | -e "") + // ["throws" [ [ []]]] + // Any flags (except an initial -s) are ignored. -int main(int argc, char* argv[]) { - FILE* input = stdin; - if (argc > 1) { - char* arg = argv[1]; - input = fopen(arg, "rb"); - if (input == NULL) return EXIT_FAILURE; + // Check for mandatory filename argument. + int arg_index = 1; + if (argc <= arg_index) { + fail(NULL, "ERROR: No filename on command line.\n"); } - int status = 0; - do { - status = v8::internal::PreParseIO(input); - } while (status == 0); - fprintf(stderr, "EXIT: Failure %d\n", status); - fflush(stderr); - return EXIT_FAILURE; + const uint8_t* source = NULL; + const char* filename = argv[arg_index]; + if (!strcmp(filename, "-e")) { + arg_index++; + if (argc <= arg_index) { + fail(NULL, "ERROR: No source after -e on command line.\n"); + } + source = reinterpret_cast(argv[arg_index]); + } + // Check remainder of command line for exception expectations. + arg_index++; + ExceptionExpectation expects = + ParseExpectation(argc - arg_index, argv + arg_index); + + ScopedPointer buffer; + size_t length; + + if (source == NULL) { + // Open JS file. + FILE* input = fopen(filename, "rb"); + if (input == NULL) { + perror("ERROR: Error opening file"); + fflush(stderr); + return EXIT_FAILURE; + } + // Find length of JS file. + if (fseek(input, 0, SEEK_END) != 0) { + perror("ERROR: Error during seek"); + fflush(stderr); + return EXIT_FAILURE; + } + length = static_cast(ftell(input)); + rewind(input); + // Read JS file into memory buffer. + buffer = new uint8_t[length]; + if (!ReadBuffer(input, *buffer, length)) { + perror("ERROR: Reading file"); + fflush(stderr); + return EXIT_FAILURE; + } + fclose(input); + source = *buffer; + } else { + length = strlen(reinterpret_cast(source)); + } + + // Preparse input file. + AsciiInputStream input_buffer(source, length); + size_t kMaxStackSize = 64 * 1024 * sizeof(void*); // NOLINT + v8::PreParserData data = v8::Preparse(&input_buffer, kMaxStackSize); + + // Fail if stack overflow. + if (data.stack_overflow()) { + fail(&data, "ERROR: Stack overflow\n"); + } + + // Check that the expected exception is thrown, if an exception is + // expected. + CheckException(&data, &expects); + + return EXIT_SUCCESS; } diff --git a/deps/v8/samples/process.cc b/deps/v8/samples/process.cc index 6be4ea542a..07c48057a5 100644 --- a/deps/v8/samples/process.cc +++ b/deps/v8/samples/process.cc @@ -30,6 +30,10 @@ #include #include +#ifdef COMPRESS_STARTUP_DATA_BZ2 +#error Using compressed startup data is not supported for this sample +#endif + using namespace std; using namespace v8; @@ -531,7 +535,7 @@ void ParseOptions(int argc, string* file) { for (int i = 1; i < argc; i++) { string arg = argv[i]; - int index = arg.find('=', 0); + size_t index = arg.find('=', 0); if (index == string::npos) { *file = arg; } else { diff --git a/deps/v8/samples/shell.cc b/deps/v8/samples/shell.cc index 64f78f02c6..7c30beccd5 100644 --- a/deps/v8/samples/shell.cc +++ b/deps/v8/samples/shell.cc @@ -1,4 +1,4 @@ -// Copyright 2009 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: @@ -28,12 +28,36 @@ #include #include #include +#ifdef COMPRESS_STARTUP_DATA_BZ2 +#include +#endif #include #include #include #include +// When building with V8 in a shared library we cannot use functions which +// is not explicitly a part of the public V8 API. This extensive use of +// #ifndef USING_V8_SHARED/#endif is a hack until we can resolve whether to +// still use the shell sample for testing or change to use the developer +// shell d8 TODO(1272). +#if !(defined(USING_V8_SHARED) || defined(V8_SHARED)) +#include "../src/v8.h" +#endif // USING_V8_SHARED +#if !defined(_WIN32) && !defined(_WIN64) +#include // NOLINT +#endif + +static void ExitShell(int exit_code) { + // Use _exit instead of exit to avoid races between isolate + // threads and static destructors. + fflush(stdout); + fflush(stderr); + _exit(exit_code); +} + +v8::Persistent CreateShellContext(); void RunShell(v8::Handle context); bool ExecuteString(v8::Handle source, v8::Handle name, @@ -44,62 +68,242 @@ v8::Handle Read(const v8::Arguments& args); v8::Handle Load(const v8::Arguments& args); v8::Handle Quit(const v8::Arguments& args); v8::Handle Version(const v8::Arguments& args); +v8::Handle Int8Array(const v8::Arguments& args); +v8::Handle Uint8Array(const v8::Arguments& args); +v8::Handle Int16Array(const v8::Arguments& args); +v8::Handle Uint16Array(const v8::Arguments& args); +v8::Handle Int32Array(const v8::Arguments& args); +v8::Handle Uint32Array(const v8::Arguments& args); +v8::Handle Float32Array(const v8::Arguments& args); +v8::Handle Float64Array(const v8::Arguments& args); +v8::Handle PixelArray(const v8::Arguments& args); v8::Handle ReadFile(const char* name); void ReportException(v8::TryCatch* handler); +static bool last_run = true; + +class SourceGroup { + public: + SourceGroup() : +#if !(defined(USING_V8_SHARED) || defined(V8_SHARED)) + next_semaphore_(v8::internal::OS::CreateSemaphore(0)), + done_semaphore_(v8::internal::OS::CreateSemaphore(0)), + thread_(NULL), +#endif // USING_V8_SHARED + argv_(NULL), + begin_offset_(0), + end_offset_(0) { } + + void Begin(char** argv, int offset) { + argv_ = const_cast(argv); + begin_offset_ = offset; + } + + void End(int offset) { end_offset_ = offset; } + + void Execute() { + for (int i = begin_offset_; i < end_offset_; ++i) { + const char* arg = argv_[i]; + if (strcmp(arg, "-e") == 0 && i + 1 < end_offset_) { + // Execute argument given to -e option directly. + v8::HandleScope handle_scope; + v8::Handle file_name = v8::String::New("unnamed"); + v8::Handle source = v8::String::New(argv_[i + 1]); + if (!ExecuteString(source, file_name, false, true)) { + ExitShell(1); + return; + } + ++i; + } else if (arg[0] == '-') { + // Ignore other options. They have been parsed already. + } else { + // Use all other arguments as names of files to load and run. + v8::HandleScope handle_scope; + v8::Handle file_name = v8::String::New(arg); + v8::Handle source = ReadFile(arg); + if (source.IsEmpty()) { + printf("Error reading '%s'\n", arg); + continue; + } + if (!ExecuteString(source, file_name, false, true)) { + ExitShell(1); + return; + } + } + } + } + +#if !(defined(USING_V8_SHARED) || defined(V8_SHARED)) + void StartExecuteInThread() { + if (thread_ == NULL) { + thread_ = new IsolateThread(this); + thread_->Start(); + } + next_semaphore_->Signal(); + } + + void WaitForThread() { + if (thread_ == NULL) return; + if (last_run) { + thread_->Join(); + thread_ = NULL; + } else { + done_semaphore_->Wait(); + } + } +#endif // USING_V8_SHARED + + private: +#if !(defined(USING_V8_SHARED) || defined(V8_SHARED)) + static v8::internal::Thread::Options GetThreadOptions() { + v8::internal::Thread::Options options; + options.name = "IsolateThread"; + // On some systems (OSX 10.6) the stack size default is 0.5Mb or less + // which is not enough to parse the big literal expressions used in tests. + // The stack size should be at least StackGuard::kLimitSize + some + // OS-specific padding for thread startup code. + options.stack_size = 2 << 20; // 2 Mb seems to be enough + return options; + } + + class IsolateThread : public v8::internal::Thread { + public: + explicit IsolateThread(SourceGroup* group) + : v8::internal::Thread(GetThreadOptions()), group_(group) {} + + virtual void Run() { + group_->ExecuteInThread(); + } + + private: + SourceGroup* group_; + }; + + void ExecuteInThread() { + v8::Isolate* isolate = v8::Isolate::New(); + do { + if (next_semaphore_ != NULL) next_semaphore_->Wait(); + { + v8::Isolate::Scope iscope(isolate); + v8::HandleScope scope; + v8::Persistent context = CreateShellContext(); + { + v8::Context::Scope cscope(context); + Execute(); + } + context.Dispose(); + } + if (done_semaphore_ != NULL) done_semaphore_->Signal(); + } while (!last_run); + isolate->Dispose(); + } + + v8::internal::Semaphore* next_semaphore_; + v8::internal::Semaphore* done_semaphore_; + v8::internal::Thread* thread_; +#endif // USING_V8_SHARED + + const char** argv_; + int begin_offset_; + int end_offset_; +}; + + +static SourceGroup* isolate_sources = NULL; + + +#ifdef COMPRESS_STARTUP_DATA_BZ2 +class BZip2Decompressor : public v8::StartupDataDecompressor { + public: + virtual ~BZip2Decompressor() { } + + protected: + virtual int DecompressData(char* raw_data, + int* raw_data_size, + const char* compressed_data, + int compressed_data_size) { + ASSERT_EQ(v8::StartupData::kBZip2, + v8::V8::GetCompressedStartupDataAlgorithm()); + unsigned int decompressed_size = *raw_data_size; + int result = + BZ2_bzBuffToBuffDecompress(raw_data, + &decompressed_size, + const_cast(compressed_data), + compressed_data_size, + 0, 1); + if (result == BZ_OK) { + *raw_data_size = decompressed_size; + } + return result; + } +}; +#endif + + int RunMain(int argc, char* argv[]) { + v8::V8::SetFlagsFromCommandLine(&argc, argv, true); v8::HandleScope handle_scope; - // Create a template for the global object. - v8::Handle global = v8::ObjectTemplate::New(); - // Bind the global 'print' function to the C++ Print callback. - global->Set(v8::String::New("print"), v8::FunctionTemplate::New(Print)); - // Bind the global 'read' function to the C++ Read callback. - global->Set(v8::String::New("read"), v8::FunctionTemplate::New(Read)); - // Bind the global 'load' function to the C++ Load callback. - global->Set(v8::String::New("load"), v8::FunctionTemplate::New(Load)); - // Bind the 'quit' function - global->Set(v8::String::New("quit"), v8::FunctionTemplate::New(Quit)); - // Bind the 'version' function - global->Set(v8::String::New("version"), v8::FunctionTemplate::New(Version)); - // Create a new execution environment containing the built-in - // functions - v8::Persistent context = v8::Context::New(NULL, global); + v8::Persistent context = CreateShellContext(); + // Enter the newly created execution environment. + context->Enter(); + if (context.IsEmpty()) { + printf("Error creating context\n"); + return 1; + } + bool run_shell = (argc == 1); + int num_isolates = 1; for (int i = 1; i < argc; i++) { - // Enter the execution environment before evaluating any code. - v8::Context::Scope context_scope(context); - const char* str = argv[i]; - if (strcmp(str, "--shell") == 0) { - run_shell = true; - } else if (strcmp(str, "-f") == 0) { - // Ignore any -f flags for compatibility with the other stand- - // alone JavaScript engines. - continue; - } else if (strncmp(str, "--", 2) == 0) { - printf("Warning: unknown flag %s.\nTry --help for options\n", str); - } else if (strcmp(str, "-e") == 0 && i + 1 < argc) { - // Execute argument given to -e option directly - v8::HandleScope handle_scope; - v8::Handle file_name = v8::String::New("unnamed"); - v8::Handle source = v8::String::New(argv[i + 1]); - if (!ExecuteString(source, file_name, false, true)) - return 1; - i++; - } else { - // Use all other arguments as names of files to load and run. - v8::HandleScope handle_scope; - v8::Handle file_name = v8::String::New(str); - v8::Handle source = ReadFile(str); - if (source.IsEmpty()) { - printf("Error reading '%s'\n", str); - return 1; + if (strcmp(argv[i], "--isolate") == 0) { +#if !(defined(USING_V8_SHARED) || defined(V8_SHARED)) + ++num_isolates; +#else // USING_V8_SHARED + printf("Error: --isolate not supported when linked with shared " + "library\n"); + ExitShell(1); +#endif // USING_V8_SHARED + } + } + if (isolate_sources == NULL) { + isolate_sources = new SourceGroup[num_isolates]; + SourceGroup* current = isolate_sources; + current->Begin(argv, 1); + for (int i = 1; i < argc; i++) { + const char* str = argv[i]; + if (strcmp(str, "--isolate") == 0) { + current->End(i); + current++; + current->Begin(argv, i + 1); + } else if (strcmp(str, "--shell") == 0) { + run_shell = true; + } else if (strcmp(str, "-f") == 0) { + // Ignore any -f flags for compatibility with the other stand- + // alone JavaScript engines. + continue; + } else if (strncmp(str, "--", 2) == 0) { + printf("Warning: unknown flag %s.\nTry --help for options\n", str); } - if (!ExecuteString(source, file_name, false, true)) - return 1; } + current->End(argc); } +#if !(defined(USING_V8_SHARED) || defined(V8_SHARED)) + for (int i = 1; i < num_isolates; ++i) { + isolate_sources[i].StartExecuteInThread(); + } +#endif // USING_V8_SHARED + isolate_sources[0].Execute(); if (run_shell) RunShell(context); +#if !(defined(USING_V8_SHARED) || defined(V8_SHARED)) + for (int i = 1; i < num_isolates; ++i) { + isolate_sources[i].WaitForThread(); + } +#endif // USING_V8_SHARED + if (last_run) { + delete[] isolate_sources; + isolate_sources = NULL; + } + context->Exit(); context.Dispose(); return 0; } @@ -126,6 +330,15 @@ int main(int argc, char* argv[]) { } } +#ifdef COMPRESS_STARTUP_DATA_BZ2 + BZip2Decompressor startup_data_decompressor; + int bz2_result = startup_data_decompressor.Decompress(); + if (bz2_result != BZ_OK) { + fprintf(stderr, "bzip error code: %d\n", bz2_result); + exit(1); + } +#endif + v8::V8::SetFlagsFromCommandLine(&argc, argv, true); int result = 0; if (FLAG_stress_opt || FLAG_stress_deopt) { @@ -137,12 +350,16 @@ int main(int argc, char* argv[]) { printf("============ Stress %d/%d ============\n", i + 1, stress_runs); v8::Testing::PrepareStressRun(i); + last_run = (i == stress_runs - 1); result = RunMain(argc, argv); } + printf("======== Full Deoptimization =======\n"); + v8::Testing::DeoptimizeAll(); } else { result = RunMain(argc, argv); } v8::V8::Dispose(); + return result; } @@ -153,6 +370,46 @@ const char* ToCString(const v8::String::Utf8Value& value) { } +// Creates a new execution environment containing the built-in +// functions. +v8::Persistent CreateShellContext() { + // Create a template for the global object. + v8::Handle global = v8::ObjectTemplate::New(); + // Bind the global 'print' function to the C++ Print callback. + global->Set(v8::String::New("print"), v8::FunctionTemplate::New(Print)); + // Bind the global 'read' function to the C++ Read callback. + global->Set(v8::String::New("read"), v8::FunctionTemplate::New(Read)); + // Bind the global 'load' function to the C++ Load callback. + global->Set(v8::String::New("load"), v8::FunctionTemplate::New(Load)); + // Bind the 'quit' function + global->Set(v8::String::New("quit"), v8::FunctionTemplate::New(Quit)); + // Bind the 'version' function + global->Set(v8::String::New("version"), v8::FunctionTemplate::New(Version)); + + // Bind the handlers for external arrays. + global->Set(v8::String::New("Int8Array"), + v8::FunctionTemplate::New(Int8Array)); + global->Set(v8::String::New("Uint8Array"), + v8::FunctionTemplate::New(Uint8Array)); + global->Set(v8::String::New("Int16Array"), + v8::FunctionTemplate::New(Int16Array)); + global->Set(v8::String::New("Uint16Array"), + v8::FunctionTemplate::New(Uint16Array)); + global->Set(v8::String::New("Int32Array"), + v8::FunctionTemplate::New(Int32Array)); + global->Set(v8::String::New("Uint32Array"), + v8::FunctionTemplate::New(Uint32Array)); + global->Set(v8::String::New("Float32Array"), + v8::FunctionTemplate::New(Float32Array)); + global->Set(v8::String::New("Float64Array"), + v8::FunctionTemplate::New(Float64Array)); + global->Set(v8::String::New("PixelArray"), + v8::FunctionTemplate::New(PixelArray)); + + return v8::Context::New(NULL, global); +} + + // The callback that is invoked by v8 whenever the JavaScript 'print' // function is called. Prints its arguments on stdout separated by // spaces and ending with a newline. @@ -222,7 +479,7 @@ v8::Handle Quit(const v8::Arguments& args) { // If not arguments are given args[0] will yield undefined which // converts to the integer value 0. int exit_code = args[0]->Int32Value(); - exit(exit_code); + ExitShell(exit_code); return v8::Undefined(); } @@ -232,6 +489,113 @@ v8::Handle Version(const v8::Arguments& args) { } +void ExternalArrayWeakCallback(v8::Persistent object, void* data) { + free(data); + object.Dispose(); +} + + +v8::Handle CreateExternalArray(const v8::Arguments& args, + v8::ExternalArrayType type, + size_t element_size) { + assert(element_size == 1 || + element_size == 2 || + element_size == 4 || + element_size == 8); + if (args.Length() != 1) { + return v8::ThrowException( + v8::String::New("Array constructor needs one parameter.")); + } + static const int kMaxLength = 0x3fffffff; + size_t length = 0; + if (args[0]->IsUint32()) { + length = args[0]->Uint32Value(); + } else if (args[0]->IsNumber()) { + double raw_length = args[0]->NumberValue(); + if (raw_length < 0) { + return v8::ThrowException( + v8::String::New("Array length must not be negative.")); + } + if (raw_length > kMaxLength) { + return v8::ThrowException( + v8::String::New("Array length exceeds maximum length.")); + } + length = static_cast(raw_length); + } else { + return v8::ThrowException( + v8::String::New("Array length must be a number.")); + } + if (length > static_cast(kMaxLength)) { + return v8::ThrowException( + v8::String::New("Array length exceeds maximum length.")); + } + void* data = calloc(length, element_size); + if (data == NULL) { + return v8::ThrowException(v8::String::New("Memory allocation failed.")); + } + v8::Handle array = v8::Object::New(); + v8::Persistent persistent_array = + v8::Persistent::New(array); + persistent_array.MakeWeak(data, ExternalArrayWeakCallback); + persistent_array.MarkIndependent(); + array->SetIndexedPropertiesToExternalArrayData(data, type, length); + array->Set(v8::String::New("length"), v8::Int32::New(length), + v8::ReadOnly); + array->Set(v8::String::New("BYTES_PER_ELEMENT"), + v8::Int32::New(element_size)); + return array; +} + + +v8::Handle Int8Array(const v8::Arguments& args) { + return CreateExternalArray(args, v8::kExternalByteArray, sizeof(int8_t)); +} + + +v8::Handle Uint8Array(const v8::Arguments& args) { + return CreateExternalArray(args, v8::kExternalUnsignedByteArray, + sizeof(uint8_t)); +} + + +v8::Handle Int16Array(const v8::Arguments& args) { + return CreateExternalArray(args, v8::kExternalShortArray, sizeof(int16_t)); +} + + +v8::Handle Uint16Array(const v8::Arguments& args) { + return CreateExternalArray(args, v8::kExternalUnsignedShortArray, + sizeof(uint16_t)); +} + +v8::Handle Int32Array(const v8::Arguments& args) { + return CreateExternalArray(args, v8::kExternalIntArray, sizeof(int32_t)); +} + + +v8::Handle Uint32Array(const v8::Arguments& args) { + return CreateExternalArray(args, v8::kExternalUnsignedIntArray, + sizeof(uint32_t)); +} + + +v8::Handle Float32Array(const v8::Arguments& args) { + return CreateExternalArray(args, v8::kExternalFloatArray, + sizeof(float)); // NOLINT +} + + +v8::Handle Float64Array(const v8::Arguments& args) { + return CreateExternalArray(args, v8::kExternalDoubleArray, + sizeof(double)); // NOLINT +} + + +v8::Handle PixelArray(const v8::Arguments& args) { + return CreateExternalArray(args, v8::kExternalPixelArray, sizeof(uint8_t)); +} + + // Reads a file into a v8 string. v8::Handle ReadFile(const char* name) { FILE* file = fopen(name, "rb"); diff --git a/deps/v8/src/SConscript b/deps/v8/src/SConscript index 598e4af56e..4b0ba16341 100755 --- a/deps/v8/src/SConscript +++ b/deps/v8/src/SConscript @@ -68,7 +68,6 @@ SOURCES = { execution.cc factory.cc flags.cc - frame-element.cc frames.cc full-codegen.cc func-name-inferrer.cc @@ -85,8 +84,8 @@ SOURCES = { ic.cc inspector.cc interpreter-irregexp.cc + isolate.cc jsregexp.cc - jump-target.cc lithium-allocator.cc lithium.cc liveedit.cc @@ -106,7 +105,6 @@ SOURCES = { regexp-macro-assembler-irregexp.cc regexp-macro-assembler.cc regexp-stack.cc - register-allocator.cc rewriter.cc runtime.cc runtime-profiler.cc @@ -123,23 +121,21 @@ SOURCES = { strtod.cc stub-cache.cc token.cc - top.cc type-info.cc unicode.cc utils.cc v8-counters.cc v8.cc + v8conversions.cc v8threads.cc + v8utils.cc variables.cc version.cc - virtual-frame.cc zone.cc extensions/gc-extension.cc extensions/externalize-string-extension.cc """), 'arch:arm': Split(""" - jump-target-light.cc - virtual-frame-light.cc arm/builtins-arm.cc arm/code-stubs-arm.cc arm/codegen-arm.cc @@ -151,37 +147,32 @@ SOURCES = { arm/frames-arm.cc arm/full-codegen-arm.cc arm/ic-arm.cc - arm/jump-target-arm.cc arm/lithium-arm.cc arm/lithium-codegen-arm.cc arm/lithium-gap-resolver-arm.cc arm/macro-assembler-arm.cc arm/regexp-macro-assembler-arm.cc - arm/register-allocator-arm.cc arm/stub-cache-arm.cc - arm/virtual-frame-arm.cc arm/assembler-arm.cc """), 'arch:mips': Split(""" mips/assembler-mips.cc mips/builtins-mips.cc + mips/code-stubs-mips.cc mips/codegen-mips.cc mips/constants-mips.cc mips/cpu-mips.cc mips/debug-mips.cc + mips/deoptimizer-mips.cc mips/disasm-mips.cc - mips/full-codegen-mips.cc mips/frames-mips.cc + mips/full-codegen-mips.cc mips/ic-mips.cc - mips/jump-target-mips.cc mips/macro-assembler-mips.cc - mips/register-allocator-mips.cc + mips/regexp-macro-assembler-mips.cc mips/stub-cache-mips.cc - mips/virtual-frame-mips.cc """), 'arch:ia32': Split(""" - jump-target-heavy.cc - virtual-frame-heavy.cc ia32/assembler-ia32.cc ia32/builtins-ia32.cc ia32/code-stubs-ia32.cc @@ -193,19 +184,14 @@ SOURCES = { ia32/frames-ia32.cc ia32/full-codegen-ia32.cc ia32/ic-ia32.cc - ia32/jump-target-ia32.cc ia32/lithium-codegen-ia32.cc ia32/lithium-gap-resolver-ia32.cc ia32/lithium-ia32.cc ia32/macro-assembler-ia32.cc ia32/regexp-macro-assembler-ia32.cc - ia32/register-allocator-ia32.cc ia32/stub-cache-ia32.cc - ia32/virtual-frame-ia32.cc """), 'arch:x64': Split(""" - jump-target-heavy.cc - virtual-frame-heavy.cc x64/assembler-x64.cc x64/builtins-x64.cc x64/code-stubs-x64.cc @@ -217,15 +203,12 @@ SOURCES = { x64/frames-x64.cc x64/full-codegen-x64.cc x64/ic-x64.cc - x64/jump-target-x64.cc x64/lithium-codegen-x64.cc x64/lithium-gap-resolver-x64.cc x64/lithium-x64.cc x64/macro-assembler-x64.cc x64/regexp-macro-assembler-x64.cc - x64/register-allocator-x64.cc x64/stub-cache-x64.cc - x64/virtual-frame-x64.cc """), 'simulator:arm': ['arm/simulator-arm.cc'], 'simulator:mips': ['mips/simulator-mips.cc'], @@ -245,6 +228,25 @@ SOURCES = { } +PREPARSER_SOURCES = { + 'all': Split(""" + allocation.cc + bignum.cc + cached-powers.cc + conversions.cc + hashmap.cc + preparse-data.cc + preparser.cc + preparser-api.cc + scanner-base.cc + strtod.cc + token.cc + unicode.cc + utils.cc + """) +} + + D8_FILES = { 'all': [ 'd8.cc', 'd8-debug.cc' @@ -300,6 +302,11 @@ debug-debugger.js '''.split() +EXPERIMENTAL_LIBRARY_FILES = ''' +proxy.js +'''.split() + + def Abort(message): print message sys.exit(1) @@ -310,13 +317,22 @@ def ConfigureObjectFiles(): env.Replace(**context.flags['v8']) context.ApplyEnvOverrides(env) env['BUILDERS']['JS2C'] = Builder(action=js2c.JS2C) - env['BUILDERS']['Snapshot'] = Builder(action='$SOURCE $TARGET --logfile "$LOGFILE" --log-snapshot-positions') + if 'ENABLE_LOGGING_AND_PROFILING' in env['CPPDEFINES']: + env['BUILDERS']['Snapshot'] = Builder(action='$SOURCE $TARGET --logfile "$LOGFILE" --log-snapshot-positions') + else: + env['BUILDERS']['Snapshot'] = Builder(action='$SOURCE $TARGET') + + def BuildJS2CEnv(type): + js2c_env = { 'TYPE': type, 'COMPRESSION': 'off' } + if 'COMPRESS_STARTUP_DATA_BZ2' in env['CPPDEFINES']: + js2c_env['COMPRESSION'] = 'bz2' + return js2c_env # Build the standard platform-independent source files. source_files = context.GetRelevantSources(SOURCES) d8_files = context.GetRelevantSources(D8_FILES) - d8_js = env.JS2C('d8-js.cc', 'd8.js', TYPE='D8') + d8_js = env.JS2C('d8-js.cc', 'd8.js', **{'TYPE': 'D8', 'COMPRESSION': 'off'}) d8_js_obj = context.ConfigureObject(env, d8_js, CPPPATH=['.']) d8_objs = [context.ConfigureObject(env, [d8_files]), d8_js_obj] @@ -324,12 +340,25 @@ def ConfigureObjectFiles(): # compile it. library_files = [s for s in LIBRARY_FILES] library_files.append('macros.py') - libraries_src, libraries_empty_src = env.JS2C(['libraries.cc', 'libraries-empty.cc'], library_files, TYPE='CORE') + libraries_src = env.JS2C( + ['libraries.cc'], library_files, **BuildJS2CEnv('CORE')) libraries_obj = context.ConfigureObject(env, libraries_src, CPPPATH=['.']) + # Combine the experimental JavaScript library files into a C++ file + # and compile it. + experimental_library_files = [ s for s in EXPERIMENTAL_LIBRARY_FILES ] + experimental_library_files.append('macros.py') + experimental_libraries_src = env.JS2C(['experimental-libraries.cc'], + experimental_library_files, + **BuildJS2CEnv('EXPERIMENTAL')) + experimental_libraries_obj = context.ConfigureObject(env, experimental_libraries_src, CPPPATH=['.']) + source_objs = context.ConfigureObject(env, source_files) non_snapshot_files = [source_objs] + preparser_source_files = context.GetRelevantSources(PREPARSER_SOURCES) + preparser_objs = context.ConfigureObject(env, preparser_source_files) + # Create snapshot if necessary. For cross compilation you should either # do without snapshots and take the performance hit or you should build a # host VM with the simulator=arm and snapshot=on options and then take the @@ -340,7 +369,7 @@ def ConfigureObjectFiles(): mksnapshot_env = env.Copy() mksnapshot_env.Replace(**context.flags['mksnapshot']) mksnapshot_src = 'mksnapshot.cc' - mksnapshot = mksnapshot_env.Program('mksnapshot', [mksnapshot_src, libraries_obj, non_snapshot_files, empty_snapshot_obj], PDB='mksnapshot.exe.pdb') + mksnapshot = mksnapshot_env.Program('mksnapshot', [mksnapshot_src, libraries_obj, experimental_libraries_obj, non_snapshot_files, empty_snapshot_obj], PDB='mksnapshot.exe.pdb') if context.use_snapshot: if context.build_snapshot: snapshot_cc = env.Snapshot('snapshot.cc', mksnapshot, LOGFILE=File('snapshot.log').abspath) @@ -349,9 +378,9 @@ def ConfigureObjectFiles(): snapshot_obj = context.ConfigureObject(env, snapshot_cc, CPPPATH=['.']) else: snapshot_obj = empty_snapshot_obj - library_objs = [non_snapshot_files, libraries_obj, snapshot_obj] - return (library_objs, d8_objs, [mksnapshot]) + library_objs = [non_snapshot_files, libraries_obj, experimental_libraries_obj, snapshot_obj] + return (library_objs, d8_objs, [mksnapshot], preparser_objs) -(library_objs, d8_objs, mksnapshot) = ConfigureObjectFiles() -Return('library_objs d8_objs mksnapshot') +(library_objs, d8_objs, mksnapshot, preparser_objs) = ConfigureObjectFiles() +Return('library_objs d8_objs mksnapshot preparser_objs') diff --git a/deps/v8/src/accessors.cc b/deps/v8/src/accessors.cc index 8cbdc09edf..806c679f4b 100644 --- a/deps/v8/src/accessors.cc +++ b/deps/v8/src/accessors.cc @@ -1,4 +1,4 @@ -// Copyright 2006-2008 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: @@ -32,9 +32,9 @@ #include "deoptimizer.h" #include "execution.h" #include "factory.h" +#include "list-inl.h" #include "safepoint-table.h" #include "scopeinfo.h" -#include "top.h" namespace v8 { namespace internal { @@ -43,8 +43,9 @@ namespace internal { template static C* FindInPrototypeChain(Object* obj, bool* found_it) { ASSERT(!*found_it); + Heap* heap = HEAP; while (!Is(obj)) { - if (obj == Heap::null_value()) return NULL; + if (obj == heap->null_value()) return NULL; obj = obj->GetPrototype(); } *found_it = true; @@ -90,24 +91,34 @@ MaybeObject* Accessors::ArrayGetLength(Object* object, void*) { Object* Accessors::FlattenNumber(Object* value) { if (value->IsNumber() || !value->IsJSValue()) return value; JSValue* wrapper = JSValue::cast(value); - ASSERT( - Top::context()->global_context()->number_function()->has_initial_map()); - Map* number_map = - Top::context()->global_context()->number_function()->initial_map(); + ASSERT(Isolate::Current()->context()->global_context()->number_function()-> + has_initial_map()); + Map* number_map = Isolate::Current()->context()->global_context()-> + number_function()->initial_map(); if (wrapper->map() == number_map) return wrapper->value(); return value; } MaybeObject* Accessors::ArraySetLength(JSObject* object, Object* value, void*) { + Isolate* isolate = object->GetIsolate(); + + // This means one of the object's prototypes is a JSArray and the + // object does not have a 'length' property. Calling SetProperty + // causes an infinite loop. + if (!object->IsJSArray()) { + return object->SetLocalPropertyIgnoreAttributes( + isolate->heap()->length_symbol(), value, NONE); + } + value = FlattenNumber(value); // Need to call methods that may trigger GC. - HandleScope scope; + HandleScope scope(isolate); // Protect raw pointers. - Handle object_handle(object); - Handle value_handle(value); + Handle object_handle(object, isolate); + Handle value_handle(value, isolate); bool has_exception; Handle uint32_v = Execution::ToUint32(value_handle, &has_exception); @@ -115,23 +126,12 @@ MaybeObject* Accessors::ArraySetLength(JSObject* object, Object* value, void*) { Handle number_v = Execution::ToNumber(value_handle, &has_exception); if (has_exception) return Failure::Exception(); - // Restore raw pointers, - object = *object_handle; - value = *value_handle; - if (uint32_v->Number() == number_v->Number()) { - if (object->IsJSArray()) { - return JSArray::cast(object)->SetElementsLength(*uint32_v); - } else { - // This means one of the object's prototypes is a JSArray and - // the object does not have a 'length' property. - // Calling SetProperty causes an infinite loop. - return object->SetLocalPropertyIgnoreAttributes(Heap::length_symbol(), - value, NONE); - } + return Handle::cast(object_handle)->SetElementsLength(*uint32_v); } - return Top::Throw(*Factory::NewRangeError("invalid_array_length", - HandleVector(NULL, 0))); + return isolate->Throw( + *isolate->factory()->NewRangeError("invalid_array_length", + HandleVector(NULL, 0))); } @@ -314,15 +314,18 @@ const AccessorDescriptor Accessors::ScriptCompilationType = { MaybeObject* Accessors::ScriptGetLineEnds(Object* object, void*) { - HandleScope scope; - Handle