Linker.h (1248B)
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- 2 * vim: set ts=8 sts=2 et sw=2 tw=80: 3 * This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #ifndef jit_Linker_h 8 #define jit_Linker_h 9 10 #include "mozilla/Maybe.h" 11 12 #include <stdint.h> 13 14 #include "jstypes.h" 15 16 #include "jit/AutoWritableJitCode.h" 17 #include "jit/MacroAssembler.h" 18 #include "vm/Runtime.h" 19 20 struct JS_PUBLIC_API JSContext; 21 22 namespace js { 23 namespace jit { 24 25 class JitCode; 26 27 enum class CodeKind : uint8_t; 28 29 class Linker { 30 MacroAssembler& masm; 31 mozilla::Maybe<AutoWritableJitCodeFallible> awjcf; 32 33 JitCode* fail(JSContext* cx) { 34 ReportOutOfMemory(cx); 35 return nullptr; 36 } 37 38 public: 39 // Construct a linker with a rooted macro assembler. 40 explicit Linker(MacroAssembler& masm) : masm(masm) { masm.finish(); } 41 42 // Create a new JitCode object and populate it with the contents of the 43 // macro assember buffer. 44 // 45 // This method cannot GC. Errors are reported to the context. 46 JitCode* newCode(JSContext* cx, CodeKind kind); 47 }; 48 49 } // namespace jit 50 } // namespace js 51 52 #endif /* jit_Linker_h */