31e7138e1a
Cleaned up ARM version by removing top of stack caching and by introducing push/pop elimination. Cleaned up the way runtime functions are called to allow runtime calls with no arguments. Changed Windows build options to make sure that exceptions are disabled and that optimization flags are enabled. Added first version of Visual Studio project files. git-svn-id: http://v8.googlecode.com/svn/trunk@13 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
109 lines
3.5 KiB
C++
109 lines
3.5 KiB
C++
// Copyright 2006-2008 Google Inc. All Rights Reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef V8_CODE_STUBS_H_
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#define V8_CODE_STUBS_H_
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namespace v8 { namespace internal {
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// Stub is base classes of all stubs.
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class CodeStub BASE_EMBEDDED {
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public:
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enum Major {
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CallFunction,
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GenericBinaryOp,
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SmiOp,
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Compare,
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RecordWrite, // Last stub that allows stub calls inside.
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StackCheck,
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UnarySub,
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RevertToNumber,
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ToBoolean,
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CounterOp,
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ArgumentsAccess,
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Runtime,
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CEntry,
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JSEntry,
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GetProperty, // ARM only
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SetProperty, // ARM only
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InvokeBuiltin, // ARM only
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JSExit, // ARM only
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NUMBER_OF_IDS
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};
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// Retrieve the code for the stub. Generate the code if needed.
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Handle<Code> GetCode();
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static Major MajorKeyFromKey(uint32_t key) {
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return static_cast<Major>(MajorKeyBits::decode(key));
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};
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static int MinorKeyFromKey(uint32_t key) {
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return MinorKeyBits::decode(key);
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};
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static const char* MajorName(Major major_key);
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virtual ~CodeStub() {}
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protected:
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static const int kMajorBits = 5;
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static const int kMinorBits = kBitsPerPointer - kMajorBits - kSmiTagSize;
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private:
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// Generates the assembler code for the stub.
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virtual void Generate(MacroAssembler* masm) = 0;
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// Returns information for computing the number key.
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virtual Major MajorKey() = 0;
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virtual int MinorKey() = 0;
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// Returns a name for logging/debugging purposes.
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virtual const char* GetName() = 0;
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#ifdef DEBUG
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virtual void Print() { PrintF("%s\n", GetName()); }
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#endif
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// Computes the key based on major and minor.
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uint32_t GetKey() {
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ASSERT(static_cast<int>(MajorKey()) < NUMBER_OF_IDS);
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return MinorKeyBits::encode(MinorKey()) |
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MajorKeyBits::encode(MajorKey());
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}
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bool AllowsStubCalls() { return MajorKey() <= RecordWrite; }
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class MajorKeyBits: public BitField<uint32_t, 0, kMajorBits> {};
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class MinorKeyBits: public BitField<uint32_t, kMajorBits, kMinorBits> {};
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friend class BreakPointIterator;
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};
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} } // namespace v8::internal
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#endif // V8_CODE_STUBS_H_
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