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// Copyright 2010 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.
#include "v8.h"
#if defined(V8_TARGET_ARCH_MIPS)
#include "codegen-inl.h"
#include "debug.h"
#include "runtime.h"
namespace v8 {
namespace internal {
#define __ ACCESS_MASM(masm)
void Builtins::Generate_Adaptor(MacroAssembler* masm,
CFunctionId id,
BuiltinExtraArguments extra_args) {
UNIMPLEMENTED_MIPS();
}
void Builtins::Generate_ArrayCode(MacroAssembler* masm) {
UNIMPLEMENTED_MIPS();
}
void Builtins::Generate_ArrayConstructCode(MacroAssembler* masm) {
UNIMPLEMENTED_MIPS();
}
void Builtins::Generate_JSConstructCall(MacroAssembler* masm) {
UNIMPLEMENTED_MIPS();
}
void Builtins::Generate_JSConstructStubGeneric(MacroAssembler* masm) {
UNIMPLEMENTED_MIPS();
}
void Builtins::Generate_JSConstructStubApi(MacroAssembler* masm) {
UNIMPLEMENTED_MIPS();
}
static void Generate_JSEntryTrampolineHelper(MacroAssembler* masm,
bool is_construct) {
// Called from JSEntryStub::GenerateBody
// Registers:
// a0: entry_address
// a1: function
// a2: reveiver_pointer
// a3: argc
// s0: argv
//
// Stack:
// arguments slots
// handler frame
// entry frame
// callee saved registers + ra
// 4 args slots
// args
// Clear the context before we push it when entering the JS frame.
__ li(cp, Operand(0, RelocInfo::NONE));
// Enter an internal frame.
__ EnterInternalFrame();
// Set up the context from the function argument.
__ lw(cp, FieldMemOperand(a1, JSFunction::kContextOffset));
// Set up the roots register.
ExternalReference roots_address = ExternalReference::roots_address();
__ li(s6, Operand(roots_address));
// Push the function and the receiver onto the stack.
__ MultiPushReversed(a1.bit() | a2.bit());
// Copy arguments to the stack in a loop.
// a3: argc
// s0: argv, ie points to first arg
Label loop, entry;
__ sll(t0, a3, kPointerSizeLog2);
__ add(t2, s0, t0);
__ b(&entry);
__ nop(); // Branch delay slot nop.
// t2 points past last arg.
__ bind(&loop);
__ lw(t0, MemOperand(s0)); // Read next parameter.
__ addiu(s0, s0, kPointerSize);
__ lw(t0, MemOperand(t0)); // Dereference handle.
__ Push(t0); // Push parameter.
__ bind(&entry);
__ Branch(ne, &loop, s0, Operand(t2));
// Registers:
// a0: entry_address
// a1: function
// a2: reveiver_pointer
// a3: argc
// s0: argv
// s6: roots_address
//
// Stack:
// arguments
// receiver
// function
// arguments slots
// handler frame
// entry frame
// callee saved registers + ra
// 4 args slots
// args
// Initialize all JavaScript callee-saved registers, since they will be seen
// by the garbage collector as part of handlers.
__ LoadRoot(t4, Heap::kUndefinedValueRootIndex);
__ mov(s1, t4);
__ mov(s2, t4);
__ mov(s3, t4);
__ mov(s4, s4);
__ mov(s5, t4);
// s6 holds the root address. Do not clobber.
// s7 is cp. Do not init.
// Invoke the code and pass argc as a0.
__ mov(a0, a3);
if (is_construct) {
UNIMPLEMENTED_MIPS();
__ break_(0x164);
} else {
ParameterCount actual(a0);
__ InvokeFunction(a1, actual, CALL_FUNCTION);
}
__ LeaveInternalFrame();
__ Jump(ra);
}
void Builtins::Generate_JSEntryTrampoline(MacroAssembler* masm) {
Generate_JSEntryTrampolineHelper(masm, false);
}
void Builtins::Generate_JSConstructEntryTrampoline(MacroAssembler* masm) {
Generate_JSEntryTrampolineHelper(masm, true);
}
void Builtins::Generate_FunctionCall(MacroAssembler* masm) {
UNIMPLEMENTED_MIPS();
}
void Builtins::Generate_FunctionApply(MacroAssembler* masm) {
UNIMPLEMENTED_MIPS();
}
void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) {
UNIMPLEMENTED_MIPS();
__ break_(0x201);
}
#undef __
} } // namespace v8::internal
#endif // V8_TARGET_ARCH_MIPS