diff options
Diffstat (limited to 'deps/v8/test/cctest/test-code-layout.cc')
-rw-r--r-- | deps/v8/test/cctest/test-code-layout.cc | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/deps/v8/test/cctest/test-code-layout.cc b/deps/v8/test/cctest/test-code-layout.cc new file mode 100644 index 0000000000..a88c8783e6 --- /dev/null +++ b/deps/v8/test/cctest/test-code-layout.cc @@ -0,0 +1,84 @@ +// Copyright 2016 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 "src/objects.h" +#include "test/cctest/cctest.h" + +using namespace v8::internal; + +TEST(CodeLayoutWithoutUnwindingInfo) { + CcTest::InitializeVM(); + HandleScope handle_scope(CcTest::i_isolate()); + + // "Hello, World!" in ASCII. + byte buffer_array[13] = {0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x2c, 0x20, + 0x57, 0x6f, 0x72, 0x6c, 0x64, 0x21}; + + byte* buffer = &buffer_array[0]; + int buffer_size = sizeof(buffer_array); + + CodeDesc code_desc; + code_desc.buffer = buffer; + code_desc.buffer_size = buffer_size; + code_desc.constant_pool_size = 0; + code_desc.instr_size = buffer_size; + code_desc.reloc_size = 0; + code_desc.origin = nullptr; + code_desc.unwinding_info = nullptr; + code_desc.unwinding_info_size = 0; + + Handle<Code> code = CcTest::i_isolate()->factory()->NewCode( + code_desc, 0, Handle<Object>::null()); + + CHECK(!code->has_unwinding_info()); + CHECK_EQ(code->instruction_size(), buffer_size); + CHECK_EQ(memcmp(code->instruction_start(), buffer, buffer_size), 0); + CHECK_EQ(code->instruction_end() - reinterpret_cast<byte*>(*code), + Code::kHeaderSize + buffer_size - kHeapObjectTag); +} + +TEST(CodeLayoutWithUnwindingInfo) { + CcTest::InitializeVM(); + HandleScope handle_scope(CcTest::i_isolate()); + + // "Hello, World!" in ASCII. + byte buffer_array[13] = {0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x2c, 0x20, + 0x57, 0x6f, 0x72, 0x6c, 0x64, 0x21}; + + // "JavaScript" in ASCII. + byte unwinding_info_array[10] = {0x4a, 0x61, 0x76, 0x61, 0x53, + 0x63, 0x72, 0x69, 0x70, 0x74}; + + byte* buffer = &buffer_array[0]; + int buffer_size = sizeof(buffer_array); + byte* unwinding_info = &unwinding_info_array[0]; + int unwinding_info_size = sizeof(unwinding_info_array); + + CodeDesc code_desc; + code_desc.buffer = buffer; + code_desc.buffer_size = buffer_size; + code_desc.constant_pool_size = 0; + code_desc.instr_size = buffer_size; + code_desc.reloc_size = 0; + code_desc.origin = nullptr; + code_desc.unwinding_info = unwinding_info; + code_desc.unwinding_info_size = unwinding_info_size; + + Handle<Code> code = CcTest::i_isolate()->factory()->NewCode( + code_desc, 0, Handle<Object>::null()); + + CHECK(code->has_unwinding_info()); + CHECK_EQ(code->instruction_size(), buffer_size); + CHECK_EQ(memcmp(code->instruction_start(), buffer, buffer_size), 0); + CHECK(IsAligned(code->GetUnwindingInfoSizeOffset(), 8)); + CHECK_EQ(code->unwinding_info_size(), unwinding_info_size); + CHECK( + IsAligned(reinterpret_cast<uintptr_t>(code->unwinding_info_start()), 8)); + CHECK_EQ( + memcmp(code->unwinding_info_start(), unwinding_info, unwinding_info_size), + 0); + CHECK_EQ(code->unwinding_info_end() - reinterpret_cast<byte*>(*code), + Code::kHeaderSize + RoundUp(buffer_size, kInt64Size) + kInt64Size + + unwinding_info_size - kHeapObjectTag); +} |