| // Copyright 2015 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <stdlib.h> |
| |
| #include "src/v8.h" |
| |
| #include "src/debug/debug.h" |
| #include "src/disasm.h" |
| #include "src/disassembler.h" |
| #include "src/ia32/frames-ia32.h" |
| #include "src/ic/ic.h" |
| #include "src/macro-assembler.h" |
| #include "test/cctest/cctest.h" |
| #include "test/cctest/compiler/c-signature.h" |
| #include "test/cctest/compiler/call-tester.h" |
| |
| using namespace v8::internal; |
| using namespace v8::internal::compiler; |
| |
| #define __ assm. |
| |
| static int32_t DummyStaticFunction(Object* result) { return 1; } |
| |
| TEST(WasmRelocationIa32MemoryReference) { |
| Isolate* isolate = CcTest::i_isolate(); |
| Zone zone(isolate->allocator()); |
| HandleScope scope(isolate); |
| v8::internal::byte buffer[4096]; |
| Assembler assm(isolate, buffer, sizeof buffer); |
| DummyStaticFunction(NULL); |
| int32_t imm = 1234567; |
| |
| __ mov(eax, Immediate(reinterpret_cast<Address>(imm), |
| RelocInfo::WASM_MEMORY_REFERENCE)); |
| __ nop(); |
| __ ret(0); |
| |
| CSignature0<int32_t> csig; |
| CodeDesc desc; |
| assm.GetCode(&desc); |
| Handle<Code> code = isolate->factory()->NewCode( |
| desc, Code::ComputeFlags(Code::STUB), Handle<Code>()); |
| USE(code); |
| |
| CodeRunner<int32_t> runnable(isolate, code, &csig); |
| int32_t ret_value = runnable.Call(); |
| CHECK_EQ(ret_value, imm); |
| |
| #ifdef OBJECT_PRINT |
| OFStream os(stdout); |
| code->Print(os); |
| byte* begin = code->instruction_start(); |
| byte* end = begin + code->instruction_size(); |
| disasm::Disassembler::Disassemble(stdout, begin, end); |
| #endif |
| |
| size_t offset = 1234; |
| |
| // Relocating references by offset |
| int mode_mask = (1 << RelocInfo::WASM_MEMORY_REFERENCE); |
| for (RelocIterator it(*code, mode_mask); !it.done(); it.next()) { |
| RelocInfo::Mode mode = it.rinfo()->rmode(); |
| if (RelocInfo::IsWasmMemoryReference(mode)) { |
| // Dummy values of size used here as the objective of the test is to |
| // verify that the immediate is patched correctly |
| it.rinfo()->update_wasm_memory_reference( |
| it.rinfo()->wasm_memory_reference(), |
| it.rinfo()->wasm_memory_reference() + offset, 1, 2, |
| SKIP_ICACHE_FLUSH); |
| } |
| } |
| |
| // Check if immediate is updated correctly |
| ret_value = runnable.Call(); |
| CHECK_EQ(ret_value, imm + offset); |
| |
| #ifdef OBJECT_PRINT |
| code->Print(os); |
| begin = code->instruction_start(); |
| end = begin + code->instruction_size(); |
| disasm::Disassembler::Disassemble(stdout, begin, end); |
| #endif |
| } |
| |
| TEST(WasmRelocationIa32MemorySizeReference) { |
| CcTest::InitializeVM(); |
| Isolate* isolate = CcTest::i_isolate(); |
| Zone zone(isolate->allocator()); |
| HandleScope scope(isolate); |
| v8::internal::byte buffer[4096]; |
| Assembler assm(isolate, buffer, sizeof buffer); |
| DummyStaticFunction(NULL); |
| int32_t size = 80; |
| Label fail; |
| |
| __ mov(eax, Immediate(reinterpret_cast<Address>(size), |
| RelocInfo::WASM_MEMORY_SIZE_REFERENCE)); |
| __ cmp(eax, Immediate(reinterpret_cast<Address>(size), |
| RelocInfo::WASM_MEMORY_SIZE_REFERENCE)); |
| __ j(not_equal, &fail); |
| __ ret(0); |
| __ bind(&fail); |
| __ mov(eax, 0xdeadbeef); |
| __ ret(0); |
| |
| CSignature0<int32_t> csig; |
| CodeDesc desc; |
| assm.GetCode(&desc); |
| Handle<Code> code = isolate->factory()->NewCode( |
| desc, Code::ComputeFlags(Code::STUB), Handle<Code>()); |
| USE(code); |
| |
| CodeRunner<int32_t> runnable(isolate, code, &csig); |
| int32_t ret_value = runnable.Call(); |
| CHECK_NE(ret_value, 0xdeadbeef); |
| |
| #ifdef OBJECT_PRINT |
| OFStream os(stdout); |
| code->Print(os); |
| byte* begin = code->instruction_start(); |
| byte* end = begin + code->instruction_size(); |
| disasm::Disassembler::Disassemble(stdout, begin, end); |
| #endif |
| |
| size_t offset = 10; |
| |
| int mode_mask = (1 << RelocInfo::WASM_MEMORY_SIZE_REFERENCE); |
| for (RelocIterator it(*code, mode_mask); !it.done(); it.next()) { |
| RelocInfo::Mode mode = it.rinfo()->rmode(); |
| if (RelocInfo::IsWasmMemorySizeReference(mode)) { |
| it.rinfo()->update_wasm_memory_reference( |
| reinterpret_cast<Address>(1234), reinterpret_cast<Address>(1234), |
| it.rinfo()->wasm_memory_size_reference(), |
| it.rinfo()->wasm_memory_size_reference() + offset, SKIP_ICACHE_FLUSH); |
| } |
| } |
| |
| ret_value = runnable.Call(); |
| CHECK_NE(ret_value, 0xdeadbeef); |
| |
| #ifdef OBJECT_PRINT |
| code->Print(os); |
| begin = code->instruction_start(); |
| end = begin + code->instruction_size(); |
| disasm::Disassembler::Disassemble(stdout, begin, end); |
| #endif |
| } |
| #undef __ |