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Diffstat (limited to 'V8Binding/v8/src/arm/macro-assembler-arm.h')
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diff --git a/V8Binding/v8/src/arm/macro-assembler-arm.h b/V8Binding/v8/src/arm/macro-assembler-arm.h deleted file mode 100644 index ee9d70d..0000000 --- a/V8Binding/v8/src/arm/macro-assembler-arm.h +++ /dev/null @@ -1,402 +0,0 @@ -// Copyright 2006-2009 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. - -#ifndef V8_ARM_MACRO_ASSEMBLER_ARM_H_ -#define V8_ARM_MACRO_ASSEMBLER_ARM_H_ - -#include "assembler.h" - -namespace v8 { -namespace internal { - - -// Give alias names to registers -const Register cp = { 8 }; // JavaScript context pointer - - -enum InvokeJSFlags { - CALL_JS, - JUMP_JS -}; - - -// MacroAssembler implements a collection of frequently used macros. -class MacroAssembler: public Assembler { - public: - MacroAssembler(void* buffer, int size); - - // --------------------------------------------------------------------------- - // Low-level helpers for compiler - - // Jump, Call, and Ret pseudo instructions implementing inter-working - private: - void Jump(intptr_t target, RelocInfo::Mode rmode, Condition cond = al); - void Call(intptr_t target, RelocInfo::Mode rmode, Condition cond = al); - public: - void Jump(Register target, Condition cond = al); - void Jump(byte* target, RelocInfo::Mode rmode, Condition cond = al); - void Jump(Handle<Code> code, RelocInfo::Mode rmode, Condition cond = al); - void Call(Register target, Condition cond = al); - void Call(byte* target, RelocInfo::Mode rmode, Condition cond = al); - void Call(Handle<Code> code, RelocInfo::Mode rmode, Condition cond = al); - void Ret(Condition cond = al); - // Jumps to the label at the index given by the Smi in "index". - void SmiJumpTable(Register index, Vector<Label*> targets); - // Load an object from the root table. - void LoadRoot(Register destination, - Heap::RootListIndex index, - Condition cond = al); - - // Sets the remembered set bit for [address+offset], where address is the - // address of the heap object 'object'. The address must be in the first 8K - // of an allocated page. The 'scratch' register is used in the - // implementation and all 3 registers are clobbered by the operation, as - // well as the ip register. - void RecordWrite(Register object, Register offset, Register scratch); - - // --------------------------------------------------------------------------- - // Activation frames - - void EnterInternalFrame() { EnterFrame(StackFrame::INTERNAL); } - void LeaveInternalFrame() { LeaveFrame(StackFrame::INTERNAL); } - - void EnterConstructFrame() { EnterFrame(StackFrame::CONSTRUCT); } - void LeaveConstructFrame() { LeaveFrame(StackFrame::CONSTRUCT); } - - // Enter specific kind of exit frame; either EXIT or - // EXIT_DEBUG. Expects the number of arguments in register r0 and - // the builtin function to call in register r1. Exits with argc in - // r4, argv in r6, and and the builtin function to call in r5. - void EnterExitFrame(StackFrame::Type type); - - // Leave the current exit frame. Expects the return value in r0. - void LeaveExitFrame(StackFrame::Type type); - - // Align the stack by optionally pushing a Smi zero. - void AlignStack(int offset); - - // --------------------------------------------------------------------------- - // JavaScript invokes - - // Invoke the JavaScript function code by either calling or jumping. - void InvokeCode(Register code, - const ParameterCount& expected, - const ParameterCount& actual, - InvokeFlag flag); - - void InvokeCode(Handle<Code> code, - const ParameterCount& expected, - const ParameterCount& actual, - RelocInfo::Mode rmode, - InvokeFlag flag); - - // Invoke the JavaScript function in the given register. Changes the - // current context to the context in the function before invoking. - void InvokeFunction(Register function, - const ParameterCount& actual, - InvokeFlag flag); - - -#ifdef ENABLE_DEBUGGER_SUPPORT - // --------------------------------------------------------------------------- - // Debugger Support - - void SaveRegistersToMemory(RegList regs); - void RestoreRegistersFromMemory(RegList regs); - void CopyRegistersFromMemoryToStack(Register base, RegList regs); - void CopyRegistersFromStackToMemory(Register base, - Register scratch, - RegList regs); -#endif - - // --------------------------------------------------------------------------- - // Exception handling - - // Push a new try handler and link into try handler chain. - // The return address must be passed in register lr. - // On exit, r0 contains TOS (code slot). - void PushTryHandler(CodeLocation try_location, HandlerType type); - - - // --------------------------------------------------------------------------- - // Inline caching support - - // Generates code that verifies that the maps of objects in the - // prototype chain of object hasn't changed since the code was - // generated and branches to the miss label if any map has. If - // necessary the function also generates code for security check - // in case of global object holders. The scratch and holder - // registers are always clobbered, but the object register is only - // clobbered if it the same as the holder register. The function - // returns a register containing the holder - either object_reg or - // holder_reg. - Register CheckMaps(JSObject* object, Register object_reg, - JSObject* holder, Register holder_reg, - Register scratch, Label* miss); - - // Generate code for checking access rights - used for security checks - // on access to global objects across environments. The holder register - // is left untouched, whereas both scratch registers are clobbered. - void CheckAccessGlobalProxy(Register holder_reg, - Register scratch, - Label* miss); - - - // --------------------------------------------------------------------------- - // Allocation support - - // Allocate an object in new space. The object_size is specified in words (not - // bytes). If the new space is exhausted control continues at the gc_required - // label. The allocated object is returned in result. If the flag - // tag_allocated_object is true the result is tagged as as a heap object. - void AllocateInNewSpace(int object_size, - Register result, - Register scratch1, - Register scratch2, - Label* gc_required, - AllocationFlags flags); - void AllocateInNewSpace(Register object_size, - Register result, - Register scratch1, - Register scratch2, - Label* gc_required, - AllocationFlags flags); - - // Undo allocation in new space. The object passed and objects allocated after - // it will no longer be allocated. The caller must make sure that no pointers - // are left to the object(s) no longer allocated as they would be invalid when - // allocation is undone. - void UndoAllocationInNewSpace(Register object, Register scratch); - - // --------------------------------------------------------------------------- - // Support functions. - - // Try to get function prototype of a function and puts the value in - // the result register. Checks that the function really is a - // function and jumps to the miss label if the fast checks fail. The - // function register will be untouched; the other registers may be - // clobbered. - void TryGetFunctionPrototype(Register function, - Register result, - Register scratch, - Label* miss); - - // Compare object type for heap object. heap_object contains a non-Smi - // whose object type should be compared with the given type. This both - // sets the flags and leaves the object type in the type_reg register. - // It leaves the map in the map register (unless the type_reg and map register - // are the same register). It leaves the heap object in the heap_object - // register unless the heap_object register is the same register as one of the - // other registers. - void CompareObjectType(Register heap_object, - Register map, - Register type_reg, - InstanceType type); - - // Compare instance type in a map. map contains a valid map object whose - // object type should be compared with the given type. This both - // sets the flags and leaves the object type in the type_reg register. It - // leaves the heap object in the heap_object register unless the heap_object - // register is the same register as type_reg. - void CompareInstanceType(Register map, - Register type_reg, - InstanceType type); - - inline void BranchOnSmi(Register value, Label* smi_label) { - tst(value, Operand(kSmiTagMask)); - b(eq, smi_label); - } - - inline void BranchOnNotSmi(Register value, Label* not_smi_label) { - tst(value, Operand(kSmiTagMask)); - b(ne, not_smi_label); - } - - // Generates code for reporting that an illegal operation has - // occurred. - void IllegalOperation(int num_arguments); - - - // --------------------------------------------------------------------------- - // Runtime calls - - // Call a code stub. - void CallStub(CodeStub* stub, Condition cond = al); - void CallJSExitStub(CodeStub* stub); - - // Return from a code stub after popping its arguments. - void StubReturn(int argc); - - // Call a runtime routine. - // Eventually this should be used for all C calls. - void CallRuntime(Runtime::Function* f, int num_arguments); - - // Convenience function: Same as above, but takes the fid instead. - void CallRuntime(Runtime::FunctionId fid, int num_arguments); - - // Tail call of a runtime routine (jump). - // Like JumpToRuntime, but also takes care of passing the number - // of parameters. - void TailCallRuntime(const ExternalReference& ext, - int num_arguments, - int result_size); - - // Jump to a runtime routine. - void JumpToRuntime(const ExternalReference& builtin); - - // Invoke specified builtin JavaScript function. Adds an entry to - // the unresolved list if the name does not resolve. - void InvokeBuiltin(Builtins::JavaScript id, InvokeJSFlags flags); - - // Store the code object for the given builtin in the target register and - // setup the function in r1. - void GetBuiltinEntry(Register target, Builtins::JavaScript id); - - struct Unresolved { - int pc; - uint32_t flags; // see Bootstrapper::FixupFlags decoders/encoders. - const char* name; - }; - List<Unresolved>* unresolved() { return &unresolved_; } - - Handle<Object> CodeObject() { return code_object_; } - - - // --------------------------------------------------------------------------- - // StatsCounter support - - void SetCounter(StatsCounter* counter, int value, - Register scratch1, Register scratch2); - void IncrementCounter(StatsCounter* counter, int value, - Register scratch1, Register scratch2); - void DecrementCounter(StatsCounter* counter, int value, - Register scratch1, Register scratch2); - - - // --------------------------------------------------------------------------- - // Debugging - - // Calls Abort(msg) if the condition cc is not satisfied. - // Use --debug_code to enable. - void Assert(Condition cc, const char* msg); - - // Like Assert(), but always enabled. - void Check(Condition cc, const char* msg); - - // Print a message to stdout and abort execution. - void Abort(const char* msg); - - // Verify restrictions about code generated in stubs. - void set_generating_stub(bool value) { generating_stub_ = value; } - bool generating_stub() { return generating_stub_; } - void set_allow_stub_calls(bool value) { allow_stub_calls_ = value; } - bool allow_stub_calls() { return allow_stub_calls_; } - - private: - List<Unresolved> unresolved_; - bool generating_stub_; - bool allow_stub_calls_; - Handle<Object> code_object_; // This handle will be patched with the code - // object on installation. - - // Helper functions for generating invokes. - void InvokePrologue(const ParameterCount& expected, - const ParameterCount& actual, - Handle<Code> code_constant, - Register code_reg, - Label* done, - InvokeFlag flag); - - // Prepares for a call or jump to a builtin by doing two things: - // 1. Emits code that fetches the builtin's function object from the context - // at runtime, and puts it in the register rdi. - // 2. Fetches the builtin's code object, and returns it in a handle, at - // compile time, so that later code can emit instructions to jump or call - // the builtin directly. If the code object has not yet been created, it - // returns the builtin code object for IllegalFunction, and sets the - // output parameter "resolved" to false. Code that uses the return value - // should then add the address and the builtin name to the list of fixups - // called unresolved_, which is fixed up by the bootstrapper. - Handle<Code> ResolveBuiltin(Builtins::JavaScript id, bool* resolved); - - // Activation support. - void EnterFrame(StackFrame::Type type); - void LeaveFrame(StackFrame::Type type); -}; - - -#ifdef ENABLE_DEBUGGER_SUPPORT -// The code patcher is used to patch (typically) small parts of code e.g. for -// debugging and other types of instrumentation. When using the code patcher -// the exact number of bytes specified must be emitted. It is not legal to emit -// relocation information. If any of these constraints are violated it causes -// an assertion to fail. -class CodePatcher { - public: - CodePatcher(byte* address, int instructions); - virtual ~CodePatcher(); - - // Macro assembler to emit code. - MacroAssembler* masm() { return &masm_; } - - // Emit an instruction directly. - void Emit(Instr x); - - // Emit an address directly. - void Emit(Address addr); - - private: - byte* address_; // The address of the code being patched. - int instructions_; // Number of instructions of the expected patch size. - int size_; // Number of bytes of the expected patch size. - MacroAssembler masm_; // Macro assembler used to generate the code. -}; -#endif // ENABLE_DEBUGGER_SUPPORT - - -// ----------------------------------------------------------------------------- -// Static helper functions. - -// Generate a MemOperand for loading a field from an object. -static inline MemOperand FieldMemOperand(Register object, int offset) { - return MemOperand(object, offset - kHeapObjectTag); -} - - -#ifdef GENERATED_CODE_COVERAGE -#define CODE_COVERAGE_STRINGIFY(x) #x -#define CODE_COVERAGE_TOSTRING(x) CODE_COVERAGE_STRINGIFY(x) -#define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__) -#define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm-> -#else -#define ACCESS_MASM(masm) masm-> -#endif - - -} } // namespace v8::internal - -#endif // V8_ARM_MACRO_ASSEMBLER_ARM_H_ |