Changeset 62612 in webkit for trunk/JavaScriptCore/runtime/JSGlobalData.cpp

Timestamp:

Jul 6, 2010, 6:35:56 PM (15 years ago)

Author:

[email protected]

Message:

2010-07-06 Oliver Hunt <​[email protected]>

Reviewed by Maciej Stachowiak.

Make it possible to have both the JIT and Interpreter available in a single build
​https://bugs.webkit.org/show_bug.cgi?id=41722

Separate the concept of !ENABLE(JIT) and ENABLE(INTERPRETER) and make it possible
to have both JIT and INTERPRETER enabled at the same time. This doesn't add
support for mix mode execution, but it does allow a single build to contain all
the code needed to use either the interpreter or the jit.

If both ENABLE(INTERPRETER) and ENABLE(JIT) are true then setting the environment
variable JSC_FORCE_INTERPRETER will force JSC to use the interpreter.

This patch basically consists of replacing !ENABLE(JIT) with ENABLE(INTERPRETER),
or converting #if ENABLE(JIT) ... #else ... into #if ENABLE(JIT) ... #endif
#if ENABLE(INTERPRETER), etc. There are also a few functions that need to be
renamed to resolve return type ambiguity.

• bytecode/CodeBlock.cpp: (JSC::CodeBlock::~CodeBlock): (JSC::CodeBlock::shrinkToFit):
• bytecode/CodeBlock.h:
• interpreter/CallFrame.h: (JSC::ExecState::returnVPC):
• interpreter/Interpreter.cpp: (JSC::Interpreter::unwindCallFrame): (JSC::Interpreter::throwException): (JSC::Interpreter::execute): (JSC::Interpreter::executeCall): (JSC::Interpreter::executeConstruct): (JSC::Interpreter::prepareForRepeatCall): (JSC::Interpreter::privateExecute): (JSC::Interpreter::retrieveLastCaller):
• interpreter/Interpreter.h:
• runtime/ArrayPrototype.cpp: (JSC::isNumericCompareFunction):
• runtime/Executable.cpp: (JSC::EvalExecutable::generateJITCode): (JSC::ProgramExecutable::generateJITCode): (JSC::FunctionExecutable::generateJITCodeForCall): (JSC::FunctionExecutable::generateJITCodeForConstruct): (JSC::FunctionExecutable::reparseExceptionInfo): (JSC::EvalExecutable::reparseExceptionInfo):
• runtime/JSFunction.cpp:
• runtime/JSGlobalData.cpp: (JSC::JSGlobalData::JSGlobalData):
• runtime/JSGlobalData.h: (JSC::JSGlobalData::canUseJIT):
• wtf/Platform.h:

File:

• trunk/JavaScriptCore/runtime/JSGlobalData.cpp (modified) (2 diffs)

trunk/JavaScriptCore/runtime/JSGlobalData.cpp

@@ -59 +59 @@
 #if PLATFORM(MAC)
 #include "ProfilerServer.h"
+#include <CoreFoundation/CoreFoundation.h>
 #endif
 
@@ -157 +158 @@
     startProfilerServerIfNeeded();
 #endif
+#if ENABLE(JIT) && ENABLE(INTERPRETER)
+#if PLATFORM(MAC)
+    CFStringRef canUseJITKey = CFStringCreateWithCString(0 , "JavaScriptCoreUseJIT", kCFStringEncodingMacRoman);
+    CFBooleanRef canUseJIT = (CFBooleanRef)CFPreferencesCopyAppValue(canUseJITKey, kCFPreferencesCurrentApplication);
+    m_canUseJIT = kCFBooleanTrue == canUseJIT;
+    CFRelease(canUseJIT);
+    CFRelease(canUseJITKey);
+#elif OS(UNIX)
+    m_canUseJIT = !getenv("JSC_FORCE_INTERPRETER");
+#else
+    m_canUseJIT = true;
+#endif
+#endif
 }