2009-05-04 07:16:10 +00:00
|
|
|
// Copyright 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.
|
|
|
|
|
2009-05-20 13:20:02 +00:00
|
|
|
#include "v8.h"
|
|
|
|
|
|
|
|
#include "bootstrapper.h"
|
|
|
|
#include "codegen-inl.h"
|
2009-06-03 10:30:50 +00:00
|
|
|
#include "macro-assembler-x64.h"
|
2009-05-20 13:20:02 +00:00
|
|
|
|
2009-05-25 10:05:56 +00:00
|
|
|
namespace v8 {
|
|
|
|
namespace internal {
|
2009-05-20 13:20:02 +00:00
|
|
|
|
|
|
|
MacroAssembler::MacroAssembler(void* buffer, int size)
|
|
|
|
: Assembler(buffer, size),
|
|
|
|
unresolved_(0),
|
|
|
|
generating_stub_(false),
|
|
|
|
allow_stub_calls_(true),
|
|
|
|
code_object_(Heap::undefined_value()) {
|
|
|
|
}
|
|
|
|
|
2009-06-04 11:54:14 +00:00
|
|
|
|
2009-05-20 13:20:02 +00:00
|
|
|
void MacroAssembler::TailCallRuntime(ExternalReference const& a, int b) {
|
|
|
|
UNIMPLEMENTED();
|
|
|
|
}
|
|
|
|
|
2009-06-03 10:30:50 +00:00
|
|
|
|
|
|
|
void MacroAssembler::Set(Register dst, int64_t x) {
|
|
|
|
if (is_int32(x)) {
|
|
|
|
movq(dst, Immediate(x));
|
|
|
|
} else if (is_uint32(x)) {
|
|
|
|
movl(dst, Immediate(x));
|
|
|
|
} else {
|
|
|
|
movq(dst, x, RelocInfo::NONE);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void MacroAssembler::Set(const Operand& dst, int64_t x) {
|
|
|
|
if (is_int32(x)) {
|
|
|
|
movq(kScratchRegister, Immediate(x));
|
|
|
|
} else if (is_uint32(x)) {
|
|
|
|
movl(kScratchRegister, Immediate(x));
|
|
|
|
} else {
|
|
|
|
movq(kScratchRegister, x, RelocInfo::NONE);
|
|
|
|
}
|
|
|
|
movq(dst, kScratchRegister);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2009-06-04 11:54:14 +00:00
|
|
|
void MacroAssembler::PushTryHandler(CodeLocation try_location,
|
|
|
|
HandlerType type) {
|
|
|
|
// The pc (return address) is already on TOS.
|
|
|
|
// This code pushes state, code, frame pointer and parameter pointer.
|
|
|
|
// Check that they are expected next on the stack, int that order.
|
|
|
|
ASSERT_EQ(StackHandlerConstants::kStateOffset,
|
|
|
|
StackHandlerConstants::kPCOffset - kPointerSize);
|
|
|
|
ASSERT_EQ(StackHandlerConstants::kCodeOffset,
|
|
|
|
StackHandlerConstants::kStateOffset - kPointerSize);
|
|
|
|
ASSERT_EQ(StackHandlerConstants::kFPOffset,
|
|
|
|
StackHandlerConstants::kCodeOffset - kPointerSize);
|
|
|
|
ASSERT_EQ(StackHandlerConstants::kPPOffset,
|
|
|
|
StackHandlerConstants::kFPOffset - kPointerSize);
|
|
|
|
|
|
|
|
if (try_location == IN_JAVASCRIPT) {
|
|
|
|
if (type == TRY_CATCH_HANDLER) {
|
|
|
|
push(Immediate(StackHandler::TRY_CATCH));
|
|
|
|
} else {
|
|
|
|
push(Immediate(StackHandler::TRY_FINALLY));
|
|
|
|
}
|
|
|
|
push(Immediate(Smi::FromInt(StackHandler::kCodeNotPresent)));
|
|
|
|
push(rbp);
|
|
|
|
push(rdi);
|
|
|
|
} else {
|
|
|
|
ASSERT(try_location == IN_JS_ENTRY);
|
|
|
|
// The parameter pointer is meaningless here and ebp does not
|
|
|
|
// point to a JS frame. So we save NULL for both pp and ebp. We
|
|
|
|
// expect the code throwing an exception to check ebp before
|
|
|
|
// dereferencing it to restore the context.
|
|
|
|
push(Immediate(StackHandler::ENTRY));
|
|
|
|
push(Immediate(Smi::FromInt(StackHandler::kCodeNotPresent)));
|
|
|
|
push(Immediate(0)); // NULL frame pointer
|
|
|
|
push(Immediate(0)); // NULL parameter pointer
|
|
|
|
}
|
|
|
|
movq(kScratchRegister, ExternalReference(Top::k_handler_address));
|
|
|
|
// Cached TOS.
|
|
|
|
movq(rax, Operand(kScratchRegister, 0));
|
|
|
|
// Link this handler.
|
|
|
|
movq(Operand(kScratchRegister, 0), rsp);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2009-05-20 13:20:02 +00:00
|
|
|
} } // namespace v8::internal
|