| // 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()); |
| #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 __ |
