mirror of
https://github.com/nodejs/node.git
synced 2025-05-15 19:48:12 +00:00
f226350fcb
PR-URL: https://github.com/nodejs/node/pull/47251 Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Richard Lau <rlau@redhat.com>
110 lines
3.8 KiB
C++
110 lines
3.8 KiB
C++
// Copyright 2022 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/execution/isolate.h"
|
|
#include "src/heap/factory.h"
|
|
#include "src/objects/objects-inl.h"
|
|
#include "test/unittests/test-utils.h"
|
|
#include "testing/gtest/include/gtest/gtest.h"
|
|
|
|
namespace v8 {
|
|
|
|
using CodeLayoutTest = TestWithContext;
|
|
|
|
namespace internal {
|
|
|
|
TEST_F(CodeLayoutTest, CodeLayoutWithoutUnwindingInfo) {
|
|
HandleScope handle_scope(i_isolate());
|
|
|
|
// "Hello, World!" in ASCII, padded to kCodeAlignment.
|
|
byte buffer_array[16] = {0x48, 0x65, 0x6C, 0x6C, 0x6F, 0x2C, 0x20, 0x57,
|
|
0x6F, 0x72, 0x6C, 0x64, 0x21, 0xcc, 0xcc, 0xcc};
|
|
|
|
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.instr_size = buffer_size;
|
|
code_desc.safepoint_table_offset = buffer_size;
|
|
code_desc.safepoint_table_size = 0;
|
|
code_desc.handler_table_offset = buffer_size;
|
|
code_desc.handler_table_size = 0;
|
|
code_desc.constant_pool_offset = buffer_size;
|
|
code_desc.constant_pool_size = 0;
|
|
code_desc.code_comments_offset = buffer_size;
|
|
code_desc.code_comments_size = 0;
|
|
code_desc.reloc_offset = buffer_size;
|
|
code_desc.reloc_size = 0;
|
|
code_desc.unwinding_info = nullptr;
|
|
code_desc.unwinding_info_size = 0;
|
|
code_desc.origin = nullptr;
|
|
|
|
Handle<Code> code =
|
|
Factory::CodeBuilder(i_isolate(), code_desc, CodeKind::FOR_TESTING)
|
|
.Build();
|
|
|
|
CHECK(!code->has_unwinding_info());
|
|
CHECK_EQ(code->InstructionSize(), buffer_size);
|
|
CHECK_EQ(0, memcmp(reinterpret_cast<void*>(code->InstructionStart()), buffer,
|
|
buffer_size));
|
|
CHECK_EQ(static_cast<int>(code->InstructionEnd() - code->InstructionStart()),
|
|
buffer_size);
|
|
}
|
|
|
|
TEST_F(CodeLayoutTest, CodeLayoutWithUnwindingInfo) {
|
|
HandleScope handle_scope(i_isolate());
|
|
|
|
// "Hello, World!" in ASCII, padded to kCodeAlignment.
|
|
byte buffer_array[16] = {0x48, 0x65, 0x6C, 0x6C, 0x6F, 0x2C, 0x20, 0x57,
|
|
0x6F, 0x72, 0x6C, 0x64, 0x21, 0xcc, 0xcc, 0xcc};
|
|
|
|
// "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.instr_size = buffer_size;
|
|
code_desc.safepoint_table_offset = buffer_size;
|
|
code_desc.safepoint_table_size = 0;
|
|
code_desc.handler_table_offset = buffer_size;
|
|
code_desc.handler_table_size = 0;
|
|
code_desc.constant_pool_offset = buffer_size;
|
|
code_desc.constant_pool_size = 0;
|
|
code_desc.code_comments_offset = buffer_size;
|
|
code_desc.code_comments_size = 0;
|
|
code_desc.reloc_offset = buffer_size;
|
|
code_desc.reloc_size = 0;
|
|
code_desc.unwinding_info = unwinding_info;
|
|
code_desc.unwinding_info_size = unwinding_info_size;
|
|
code_desc.origin = nullptr;
|
|
|
|
Handle<Code> code =
|
|
Factory::CodeBuilder(i_isolate(), code_desc, CodeKind::FOR_TESTING)
|
|
.Build();
|
|
|
|
CHECK(code->has_unwinding_info());
|
|
CHECK_EQ(code->body_size(), buffer_size + unwinding_info_size);
|
|
CHECK_EQ(0, memcmp(reinterpret_cast<void*>(code->InstructionStart()), buffer,
|
|
buffer_size));
|
|
CHECK_EQ(code->unwinding_info_size(), unwinding_info_size);
|
|
CHECK_EQ(memcmp(reinterpret_cast<void*>(code->unwinding_info_start()),
|
|
unwinding_info, unwinding_info_size),
|
|
0);
|
|
CHECK_EQ(
|
|
static_cast<int>(code->unwinding_info_end() - code->InstructionStart()),
|
|
buffer_size + unwinding_info_size);
|
|
}
|
|
|
|
} // namespace internal
|
|
} // namespace v8
|