| // 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 <iostream> // NOLINT(readability/streams) |
| |
| #include "src/v8.h" |
| #include "test/cctest/cctest.h" |
| |
| #include "src/arm64/simulator-arm64.h" |
| #include "src/arm64/utils-arm64.h" |
| #include "src/disassembler.h" |
| #include "src/factory.h" |
| #include "src/macro-assembler.h" |
| #include "src/ostreams.h" |
| #include "test/cctest/compiler/c-signature.h" |
| #include "test/cctest/compiler/call-tester.h" |
| |
| using namespace v8::base; |
| using namespace v8::internal; |
| using namespace v8::internal::compiler; |
| |
| #define __ masm. |
| |
| static int64_t DummyStaticFunction(Object* result) { return 1; } |
| |
| TEST(WasmRelocationArm64MemoryReference) { |
| Isolate* isolate = CcTest::i_isolate(); |
| HandleScope scope(isolate); |
| v8::internal::byte buffer[4096]; |
| DummyStaticFunction(NULL); |
| int64_t imm = 1234567; |
| |
| MacroAssembler masm(isolate, buffer, sizeof buffer, |
| v8::internal::CodeObjectRequired::kYes); |
| |
| __ Mov(x0, Immediate(imm, RelocInfo::WASM_MEMORY_REFERENCE)); |
| __ Ret(); |
| |
| CodeDesc desc; |
| masm.GetCode(&desc); |
| Handle<Code> code = isolate->factory()->NewCode( |
| desc, Code::ComputeFlags(Code::STUB), Handle<Code>()); |
| |
| CSignature0<int64_t> csig; |
| CodeRunner<int64_t> runnable(isolate, code, &csig); |
| int64_t ret_value = runnable.Call(); |
| CHECK_EQ(ret_value, imm); |
| |
| #ifdef DEBUG |
| OFStream os(stdout); |
| code->Print(os); |
| ::printf("f() = %" PRIx64 "\n\n", ret_value); |
| #endif |
| size_t offset = 1234; |
| |
| // Relocating reference 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); |
| } |
| } |
| |
| // Call into relocated code object |
| ret_value = runnable.Call(); |
| CHECK_EQ((imm + offset), ret_value); |
| |
| #ifdef DEBUG |
| code->Print(os); |
| ::printf("f() = %" PRIx64 "\n\n", ret_value); |
| #endif |
| } |
| |
| TEST(WasmRelocationArm64MemorySizeReference) { |
| CcTest::InitializeVM(); |
| Isolate* isolate = CcTest::i_isolate(); |
| HandleScope scope(isolate); |
| v8::internal::byte buffer[4096]; |
| DummyStaticFunction(NULL); |
| Immediate size = Immediate(512, RelocInfo::WASM_MEMORY_SIZE_REFERENCE); |
| Label fail; |
| |
| MacroAssembler masm(isolate, buffer, sizeof buffer, |
| v8::internal::CodeObjectRequired::kYes); |
| |
| __ Mov(x0, size); |
| __ Cmp(x0, size); |
| __ B(ne, &fail); |
| __ Ret(); |
| __ Bind(&fail); |
| __ Mov(x0, Immediate(0xdeadbeef)); |
| __ Ret(); |
| |
| CodeDesc desc; |
| masm.GetCode(&desc); |
| Handle<Code> code = isolate->factory()->NewCode( |
| desc, Code::ComputeFlags(Code::STUB), Handle<Code>()); |
| |
| CSignature0<int64_t> csig; |
| CodeRunner<int64_t> runnable(isolate, code, &csig); |
| int64_t ret_value = runnable.Call(); |
| CHECK_NE(ret_value, 0xdeadbeef); |
| |
| #ifdef DEBUG |
| OFStream os(stdout); |
| code->Print(os); |
| ::printf("f() = %" PRIx64 "\n\n", ret_value); |
| #endif |
| int32_t diff = 512; |
| |
| 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>(0x1234), reinterpret_cast<Address>(0x1234), |
| it.rinfo()->wasm_memory_size_reference(), |
| it.rinfo()->wasm_memory_size_reference() + diff, SKIP_ICACHE_FLUSH); |
| } |
| } |
| |
| ret_value = runnable.Call(); |
| CHECK_NE(ret_value, 0xdeadbeef); |
| |
| #ifdef DEBUG |
| code->Print(os); |
| ::printf("f() = %" PRIx64 "\n\n", ret_value); |
| #endif |
| } |
| |
| #undef __ |