| // 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 "src/init/v8.h" |
| |
| #include "src/codegen/macro-assembler.h" |
| #include "src/debug/debug.h" |
| #include "src/diagnostics/disasm.h" |
| #include "src/diagnostics/disassembler.h" |
| #include "src/execution/frames-inl.h" |
| #include "test/cctest/cctest.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| bool DisassembleAndCompare(byte* pc, const char* compare_string) { |
| disasm::NameConverter converter; |
| disasm::Disassembler disasm(converter); |
| EmbeddedVector<char, 128> disasm_buffer; |
| |
| disasm.InstructionDecode(disasm_buffer, pc); |
| |
| if (strcmp(compare_string, disasm_buffer.begin()) != 0) { |
| fprintf(stderr, |
| "expected: \n" |
| "%s\n" |
| "disassembled: \n" |
| "%s\n\n", |
| compare_string, disasm_buffer.begin()); |
| return false; |
| } |
| return true; |
| } |
| |
| |
| // Set up V8 to a state where we can at least run the assembler and |
| // disassembler. Declare the variables and allocate the data structures used |
| // in the rest of the macros. |
| #define SET_UP() \ |
| CcTest::InitializeVM(); \ |
| Isolate* isolate = CcTest::i_isolate(); \ |
| HandleScope scope(isolate); \ |
| byte* buffer = reinterpret_cast<byte*>(malloc(4 * 1024)); \ |
| Assembler assm(AssemblerOptions{}, \ |
| ExternalAssemblerBuffer(buffer, 4 * 1024)); \ |
| bool failure = false; |
| |
| // This macro assembles one instruction using the preallocated assembler and |
| // disassembles the generated instruction, comparing the output to the expected |
| // value. If the comparison fails an error message is printed, but the test |
| // continues to run until the end. |
| #define COMPARE(asm_, compare_string) \ |
| { \ |
| int pc_offset = assm.pc_offset(); \ |
| byte* progcounter = &buffer[pc_offset]; \ |
| assm.asm_; \ |
| if (!DisassembleAndCompare(progcounter, compare_string)) failure = true; \ |
| } |
| |
| // Force emission of any pending literals into a pool. |
| #define EMIT_PENDING_LITERALS() assm.CheckConstPool(true, false) |
| |
| |
| // Verify that all invocations of the COMPARE macro passed successfully. |
| // Exit with a failure if at least one of the tests failed. |
| #define VERIFY_RUN() \ |
| if (failure) { \ |
| FATAL("PPC Disassembler tests failed.\n"); \ |
| } |
| |
| TEST(DisasmPPC) { |
| SET_UP(); |
| |
| COMPARE(addc(r9, r7, r9), "7d274814 addc r9, r7, r9"); |
| COMPARE(addic(r3, r5, Operand(20)), "30650014 addic r3, r5, 20"); |
| COMPARE(addi(r0, ip, Operand(63)), "380c003f addi r0, ip, 63"); |
| COMPARE(add(r5, r7, r0), "7ca70214 add r5, r7, r0"); |
| COMPARE(addze(r0, r0, LeaveOE, SetRC), "7c000195 addze. r0, r0"); |
| COMPARE(andi(r0, r3, Operand(4)), "70600004 andi. r0, r3, 4"); |
| COMPARE(and_(r3, r6, r5), "7cc32838 and r3, r6, r5"); |
| COMPARE(and_(r6, r0, r6, SetRC), "7c063039 and. r6, r0, r6"); |
| // skipping branches (for now?) |
| COMPARE(bctr(), "4e800420 bctr"); |
| COMPARE(bctrl(), "4e800421 bctrl"); |
| COMPARE(blr(), "4e800020 blr"); |
| // skipping call - only used in simulator |
| #if V8_TARGET_ARCH_PPC64 |
| COMPARE(cmpi(r0, Operand(5)), "2fa00005 cmpi r0, 5"); |
| #else |
| COMPARE(cmpi(r0, Operand(5)), "2f800005 cmpi r0, 5"); |
| #endif |
| #if V8_TARGET_ARCH_PPC64 |
| COMPARE(cmpl(r6, r7), "7fa63840 cmpl r6, r7"); |
| #else |
| COMPARE(cmpl(r6, r7), "7f863840 cmpl r6, r7"); |
| #endif |
| #if V8_TARGET_ARCH_PPC64 |
| COMPARE(cmp(r5, r11), "7fa55800 cmp r5, r11"); |
| #else |
| COMPARE(cmp(r5, r11), "7f855800 cmp r5, r11"); |
| #endif |
| // skipping crxor - incomplete disassembly |
| COMPARE(lbz(r4, MemOperand(r4, 7)), "88840007 lbz r4, 7(r4)"); |
| COMPARE(lfd(d0, MemOperand(sp, 128)), "c8010080 lfd d0, 128(sp)"); |
| COMPARE(li(r0, Operand(16)), "38000010 li r0, 16"); |
| COMPARE(lis(r8, Operand(22560)), "3d005820 lis r8, 22560"); |
| COMPARE(lwz(ip, MemOperand(r19, 44)), "8193002c lwz ip, 44(r19)"); |
| COMPARE(lwzx(r0, MemOperand(r5, ip)), "7c05602e lwzx r0, r5, ip"); |
| COMPARE(mflr(r0), "7c0802a6 mflr r0"); |
| COMPARE(mr(r15, r4), "7c8f2378 mr r15, r4"); |
| COMPARE(mtctr(r0), "7c0903a6 mtctr r0"); |
| COMPARE(mtlr(r15), "7de803a6 mtlr r15"); |
| COMPARE(ori(r8, r8, Operand(42849)), "6108a761 ori r8, r8, 42849"); |
| COMPARE(orx(r5, r3, r4), "7c652378 or r5, r3, r4"); |
| COMPARE(rlwinm(r4, r3, 2, 0, 29), "5464103a rlwinm r4, r3, 2, 0, 29"); |
| COMPARE(rlwinm(r0, r3, 0, 31, 31, SetRC), |
| "546007ff rlwinm. r0, r3, 0, 31, 31"); |
| COMPARE(srawi(r3, r6, 1), "7cc30e70 srawi r3,r6,1"); |
| COMPARE(stb(r5, MemOperand(r11, 11)), "98ab000b stb r5, 11(r11)"); |
| COMPARE(stfd(d2, MemOperand(sp, 8)), "d8410008 stfd d2, 8(sp)"); |
| COMPARE(stw(r16, MemOperand(sp, 64)), "92010040 stw r16, 64(sp)"); |
| COMPARE(stwu(r3, MemOperand(sp, -4)), "9461fffc stwu r3, -4(sp)"); |
| COMPARE(sub(r3, r3, r4), "7c641850 subf r3, r4, r3"); |
| COMPARE(sub(r0, r9, r8, LeaveOE, SetRC), "7c084851 subf. r0, r8, r9"); |
| COMPARE(xor_(r6, r5, r4), "7ca62278 xor r6, r5, r4"); |
| |
| VERIFY_RUN(); |
| } |
| |
| } // namespace internal |
| } // namespace v8 |
