1 // Copyright 2021 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef V8_SNAPSHOT_EMBEDDED_EMBEDDED_FILE_WRITER_INTERFACE_H_ 6 #define V8_SNAPSHOT_EMBEDDED_EMBEDDED_FILE_WRITER_INTERFACE_H_ 7 8 #include <string> 9 10 #include "v8config.h" // NOLINT(build/include_directory) 11 12 namespace v8 { 13 namespace internal { 14 15 class Builtins; 16 17 #if defined(V8_OS_WIN64) 18 namespace win64_unwindinfo { 19 class BuiltinUnwindInfo; 20 } 21 #endif // V8_OS_WIN64 22 23 static constexpr char kDefaultEmbeddedVariant[] = "Default"; 24 25 struct LabelInfo { 26 int offset; 27 std::string name; 28 }; 29 30 // Detailed source-code information about builtins can only be obtained by 31 // registration on the isolate during compilation. 32 class EmbeddedFileWriterInterface { 33 public: 34 // We maintain a database of filenames to synthetic IDs. 35 virtual int LookupOrAddExternallyCompiledFilename(const char* filename) = 0; 36 virtual const char* GetExternallyCompiledFilename(int index) const = 0; 37 virtual int GetExternallyCompiledFilenameCount() const = 0; 38 39 // The isolate will call the method below just prior to replacing the 40 // compiled builtin Code objects with trampolines. 41 virtual void PrepareBuiltinSourcePositionMap(Builtins* builtins) = 0; 42 43 virtual void PrepareBuiltinLabelInfoMap(int create_offset, 44 int invoke_offset) = 0; 45 46 #if defined(V8_OS_WIN64) 47 virtual void SetBuiltinUnwindData( 48 Builtin builtin, 49 const win64_unwindinfo::BuiltinUnwindInfo& unwinding_info) = 0; 50 #endif // V8_OS_WIN64 51 }; 52 53 } // namespace internal 54 } // namespace v8 55 56 #endif // V8_SNAPSHOT_EMBEDDED_EMBEDDED_FILE_WRITER_INTERFACE_H_ 57