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