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430 lines
12 KiB
430 lines
12 KiB
// Copyright 2011 the V8 project authors. 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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#include <stdlib.h>
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#include "v8.h"
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#include "debug.h"
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#include "disasm.h"
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#include "disassembler.h"
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#include "macro-assembler.h"
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#include "serialize.h"
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#include "cctest.h"
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using namespace v8::internal;
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static v8::Persistent<v8::Context> env;
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static void InitializeVM() {
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if (env.IsEmpty()) {
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env = v8::Context::New();
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}
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}
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#define __ assm.
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static void DummyStaticFunction(Object* result) {
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}
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TEST(DisasmX64) {
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InitializeVM();
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v8::HandleScope scope;
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v8::internal::byte buffer[2048];
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Assembler assm(Isolate::Current(), buffer, sizeof buffer);
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DummyStaticFunction(NULL); // just bloody use it (DELETE; debugging)
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// Short immediate instructions
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__ addq(rax, Immediate(12345678));
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__ or_(rax, Immediate(12345678));
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__ subq(rax, Immediate(12345678));
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__ xor_(rax, Immediate(12345678));
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__ and_(rax, Immediate(12345678));
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// ---- This one caused crash
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__ movq(rbx, Operand(rsp, rcx, times_2, 0)); // [rsp+rcx*4]
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// ---- All instructions that I can think of
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__ addq(rdx, rbx);
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__ addq(rdx, Operand(rbx, 0));
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__ addq(rdx, Operand(rbx, 16));
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__ addq(rdx, Operand(rbx, 1999));
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__ addq(rdx, Operand(rsp, 0));
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__ addq(rdx, Operand(rsp, 16));
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__ addq(rdx, Operand(rsp, 1999));
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__ nop();
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__ addq(rdi, Operand(rbp, rcx, times_4, 0));
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__ addq(rdi, Operand(rbp, rcx, times_4, 12));
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__ addq(Operand(rbp, rcx, times_4, 12), Immediate(12));
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__ nop();
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__ addq(rbx, Immediate(12));
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__ nop();
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__ nop();
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__ and_(rdx, Immediate(3));
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__ and_(rdx, Operand(rsp, 4));
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__ cmpq(rdx, Immediate(3));
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__ cmpq(rdx, Operand(rsp, 4));
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__ cmpq(Operand(rbp, rcx, times_4, 0), Immediate(1000));
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__ cmpb(rbx, Operand(rbp, rcx, times_2, 0));
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__ cmpb(Operand(rbp, rcx, times_2, 0), rbx);
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__ or_(rdx, Immediate(3));
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__ xor_(rdx, Immediate(3));
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__ nop();
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{
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CHECK(CpuFeatures::IsSupported(CPUID));
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CpuFeatures::Scope fscope(CPUID);
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__ cpuid();
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}
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{
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CHECK(CpuFeatures::IsSupported(RDTSC));
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CpuFeatures::Scope fscope(RDTSC);
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__ rdtsc();
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}
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__ movsxbq(rdx, Operand(rcx, 0));
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__ movsxwq(rdx, Operand(rcx, 0));
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__ movzxbl(rdx, Operand(rcx, 0));
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__ movzxwl(rdx, Operand(rcx, 0));
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__ movzxbq(rdx, Operand(rcx, 0));
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__ movzxwq(rdx, Operand(rcx, 0));
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__ nop();
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__ imul(rdx, rcx);
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__ shld(rdx, rcx);
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__ shrd(rdx, rcx);
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__ bts(Operand(rdx, 0), rcx);
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__ bts(Operand(rbx, rcx, times_4, 0), rcx);
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__ nop();
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__ push(Immediate(12));
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__ push(Immediate(23456));
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__ push(rcx);
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__ push(rsi);
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__ push(Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
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__ push(Operand(rbx, rcx, times_4, 0));
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__ push(Operand(rbx, rcx, times_4, 0));
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__ push(Operand(rbx, rcx, times_4, 10000));
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__ pop(rdx);
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__ pop(rax);
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__ pop(Operand(rbx, rcx, times_4, 0));
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__ nop();
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__ addq(rdx, Operand(rsp, 16));
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__ addq(rdx, rcx);
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__ movb(rdx, Operand(rcx, 0));
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__ movb(rcx, Immediate(6));
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__ movb(Operand(rsp, 16), rdx);
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__ movw(Operand(rsp, 16), rdx);
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__ nop();
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__ movsxwq(rdx, Operand(rsp, 12));
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__ movsxbq(rdx, Operand(rsp, 12));
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__ movsxlq(rdx, Operand(rsp, 12));
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__ movzxwq(rdx, Operand(rsp, 12));
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__ movzxbq(rdx, Operand(rsp, 12));
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__ nop();
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__ movq(rdx, Immediate(1234567));
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__ movq(rdx, Operand(rsp, 12));
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__ movq(Operand(rbx, rcx, times_4, 10000), Immediate(12345));
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__ movq(Operand(rbx, rcx, times_4, 10000), rdx);
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__ nop();
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__ decb(rdx);
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__ decb(Operand(rax, 10));
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__ decb(Operand(rbx, rcx, times_4, 10000));
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__ decq(rdx);
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__ cdq();
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__ nop();
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__ idivq(rdx);
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__ mul(rdx);
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__ neg(rdx);
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__ not_(rdx);
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__ testq(Operand(rbx, rcx, times_4, 10000), rdx);
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__ imul(rdx, Operand(rbx, rcx, times_4, 10000));
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__ imul(rdx, rcx, Immediate(12));
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__ imul(rdx, rcx, Immediate(1000));
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__ incq(rdx);
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__ incq(Operand(rbx, rcx, times_4, 10000));
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__ push(Operand(rbx, rcx, times_4, 10000));
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__ pop(Operand(rbx, rcx, times_4, 10000));
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__ jmp(Operand(rbx, rcx, times_4, 10000));
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__ lea(rdx, Operand(rbx, rcx, times_4, 10000));
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__ or_(rdx, Immediate(12345));
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__ or_(rdx, Operand(rbx, rcx, times_4, 10000));
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__ nop();
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__ rcl(rdx, Immediate(1));
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__ rcl(rdx, Immediate(7));
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__ rcr(rdx, Immediate(1));
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__ rcr(rdx, Immediate(7));
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__ sar(rdx, Immediate(1));
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__ sar(rdx, Immediate(6));
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__ sar_cl(rdx);
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__ sbbq(rdx, rbx);
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__ shld(rdx, rbx);
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__ shl(rdx, Immediate(1));
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__ shl(rdx, Immediate(6));
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__ shl_cl(rdx);
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__ shrd(rdx, rbx);
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__ shr(rdx, Immediate(1));
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__ shr(rdx, Immediate(7));
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__ shr_cl(rdx);
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// Immediates
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__ addq(rbx, Immediate(12));
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__ addq(Operand(rdx, rcx, times_4, 10000), Immediate(12));
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__ and_(rbx, Immediate(12345));
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__ cmpq(rbx, Immediate(12345));
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__ cmpq(rbx, Immediate(12));
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__ cmpq(Operand(rdx, rcx, times_4, 10000), Immediate(12));
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__ cmpb(rax, Immediate(100));
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__ or_(rbx, Immediate(12345));
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__ subq(rbx, Immediate(12));
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__ subq(Operand(rdx, rcx, times_4, 10000), Immediate(12));
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__ xor_(rbx, Immediate(12345));
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__ imul(rdx, rcx, Immediate(12));
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__ imul(rdx, rcx, Immediate(1000));
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__ cld();
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__ subq(rdx, Operand(rbx, rcx, times_4, 10000));
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__ subq(rdx, rbx);
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__ testq(rdx, Immediate(12345));
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__ testq(Operand(rbx, rcx, times_8, 10000), rdx);
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__ testb(Operand(rcx, rbx, times_2, 1000), rdx);
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__ testb(Operand(rax, -20), Immediate(0x9A));
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__ nop();
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__ xor_(rdx, Immediate(12345));
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__ xor_(rdx, Operand(rbx, rcx, times_8, 10000));
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__ bts(Operand(rbx, rcx, times_8, 10000), rdx);
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__ hlt();
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__ int3();
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__ ret(0);
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__ ret(8);
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// Calls
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Label L1, L2;
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__ bind(&L1);
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__ nop();
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__ call(&L1);
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__ call(&L2);
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__ nop();
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__ bind(&L2);
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__ call(Operand(rbx, rcx, times_4, 10000));
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__ nop();
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Handle<Code> ic(Isolate::Current()->builtins()->builtin(
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Builtins::kLoadIC_Initialize));
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__ call(ic, RelocInfo::CODE_TARGET);
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__ nop();
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__ nop();
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__ jmp(&L1);
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__ jmp(Operand(rbx, rcx, times_4, 10000));
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#ifdef ENABLE_DEBUGGER_SUPPORT
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ExternalReference after_break_target =
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ExternalReference(Debug_Address::AfterBreakTarget(),
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assm.isolate());
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USE(after_break_target);
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#endif // ENABLE_DEBUGGER_SUPPORT
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__ jmp(ic, RelocInfo::CODE_TARGET);
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__ nop();
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Label Ljcc;
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__ nop();
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// long jumps
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__ j(overflow, &Ljcc);
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__ j(no_overflow, &Ljcc);
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__ j(below, &Ljcc);
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__ j(above_equal, &Ljcc);
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__ j(equal, &Ljcc);
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__ j(not_equal, &Ljcc);
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__ j(below_equal, &Ljcc);
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__ j(above, &Ljcc);
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__ j(sign, &Ljcc);
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__ j(not_sign, &Ljcc);
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__ j(parity_even, &Ljcc);
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__ j(parity_odd, &Ljcc);
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__ j(less, &Ljcc);
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__ j(greater_equal, &Ljcc);
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__ j(less_equal, &Ljcc);
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__ j(greater, &Ljcc);
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__ nop();
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__ bind(&Ljcc);
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// short jumps
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__ j(overflow, &Ljcc);
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__ j(no_overflow, &Ljcc);
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__ j(below, &Ljcc);
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__ j(above_equal, &Ljcc);
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__ j(equal, &Ljcc);
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__ j(not_equal, &Ljcc);
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__ j(below_equal, &Ljcc);
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__ j(above, &Ljcc);
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__ j(sign, &Ljcc);
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__ j(not_sign, &Ljcc);
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__ j(parity_even, &Ljcc);
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__ j(parity_odd, &Ljcc);
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__ j(less, &Ljcc);
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__ j(greater_equal, &Ljcc);
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__ j(less_equal, &Ljcc);
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__ j(greater, &Ljcc);
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// 0xD9 instructions
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__ nop();
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__ fld(1);
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__ fld1();
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__ fldz();
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__ fldpi();
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__ fabs();
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__ fchs();
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__ fprem();
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__ fprem1();
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__ fincstp();
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__ ftst();
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__ fxch(3);
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__ fld_s(Operand(rbx, rcx, times_4, 10000));
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__ fstp_s(Operand(rbx, rcx, times_4, 10000));
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__ ffree(3);
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__ fld_d(Operand(rbx, rcx, times_4, 10000));
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__ fstp_d(Operand(rbx, rcx, times_4, 10000));
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__ nop();
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__ fild_s(Operand(rbx, rcx, times_4, 10000));
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__ fistp_s(Operand(rbx, rcx, times_4, 10000));
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__ fild_d(Operand(rbx, rcx, times_4, 10000));
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__ fistp_d(Operand(rbx, rcx, times_4, 10000));
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__ fnstsw_ax();
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__ nop();
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__ fadd(3);
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__ fsub(3);
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__ fmul(3);
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__ fdiv(3);
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__ faddp(3);
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__ fsubp(3);
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__ fmulp(3);
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__ fdivp(3);
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__ fcompp();
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__ fwait();
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__ nop();
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{
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if (CpuFeatures::IsSupported(SSE2)) {
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CpuFeatures::Scope fscope(SSE2);
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__ cvttss2si(rdx, Operand(rbx, rcx, times_4, 10000));
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__ cvttss2si(rdx, xmm1);
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__ cvttsd2si(rdx, Operand(rbx, rcx, times_4, 10000));
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__ cvttsd2si(rdx, xmm1);
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__ cvttsd2siq(rdx, xmm1);
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__ addsd(xmm1, xmm0);
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__ mulsd(xmm1, xmm0);
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__ subsd(xmm1, xmm0);
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__ divsd(xmm1, xmm0);
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__ movsd(xmm1, Operand(rbx, rcx, times_4, 10000));
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__ movsd(Operand(rbx, rcx, times_4, 10000), xmm1);
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__ ucomisd(xmm0, xmm1);
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// 128 bit move instructions.
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__ movdqa(xmm0, Operand(rbx, rcx, times_4, 10000));
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__ movdqa(Operand(rbx, rcx, times_4, 10000), xmm0);
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}
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}
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// cmov.
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{
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if (CpuFeatures::IsSupported(CMOV)) {
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CpuFeatures::Scope use_cmov(CMOV);
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__ cmovq(overflow, rax, Operand(rax, 0));
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__ cmovq(no_overflow, rax, Operand(rax, 1));
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__ cmovq(below, rax, Operand(rax, 2));
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__ cmovq(above_equal, rax, Operand(rax, 3));
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__ cmovq(equal, rax, Operand(rbx, 0));
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__ cmovq(not_equal, rax, Operand(rbx, 1));
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__ cmovq(below_equal, rax, Operand(rbx, 2));
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__ cmovq(above, rax, Operand(rbx, 3));
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__ cmovq(sign, rax, Operand(rcx, 0));
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__ cmovq(not_sign, rax, Operand(rcx, 1));
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__ cmovq(parity_even, rax, Operand(rcx, 2));
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__ cmovq(parity_odd, rax, Operand(rcx, 3));
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__ cmovq(less, rax, Operand(rdx, 0));
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__ cmovq(greater_equal, rax, Operand(rdx, 1));
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__ cmovq(less_equal, rax, Operand(rdx, 2));
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__ cmovq(greater, rax, Operand(rdx, 3));
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}
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}
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// andpd, etc.
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{
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if (CpuFeatures::IsSupported(SSE2)) {
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CpuFeatures::Scope fscope(SSE2);
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__ andpd(xmm0, xmm1);
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__ andpd(xmm1, xmm2);
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__ movaps(xmm0, xmm1);
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__ movaps(xmm1, xmm2);
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}
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}
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// Nop instructions
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for (int i = 0; i < 16; i++) {
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__ Nop(i);
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}
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__ ret(0);
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CodeDesc desc;
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assm.GetCode(&desc);
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Object* code = HEAP->CreateCode(
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desc,
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Code::ComputeFlags(Code::STUB),
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Handle<Object>(HEAP->undefined_value()))->ToObjectChecked();
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CHECK(code->IsCode());
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#ifdef OBJECT_PRINT
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Code::cast(code)->Print();
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byte* begin = Code::cast(code)->instruction_start();
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byte* end = begin + Code::cast(code)->instruction_size();
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disasm::Disassembler::Disassemble(stdout, begin, end);
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#endif
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}
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#undef __
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