/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- * vim: set ts=4 sw=4 et tw=99: * * ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is Mozilla SpiderMonkey JavaScript 1.9 code, released * May 28, 2008. * * The Initial Developer of the Original Code is * Brendan Eich * * Contributor(s): * David Anderson * David Mandelin * * Alternatively, the contents of this file may be used under the terms of * either of the GNU General Public License Version 2 or later (the "GPL"), * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ #if !defined(jsstub_compiler_h__) && defined(JS_METHODJIT) #define jsstub_compiler_h__ #include "jscntxt.h" #include "jstl.h" #include "MethodJIT.h" #include "methodjit/FrameState.h" #include "methodjit/nunbox/Assembler.h" #include "CodeGenIncludes.h" namespace js { namespace mjit { class Compiler; class StubCompiler { typedef JSC::MacroAssembler::Call Call; typedef JSC::MacroAssembler::Jump Jump; typedef JSC::MacroAssembler::Label Label; struct CrossPatch { CrossPatch(Jump from, Label to) : from(from), to(to) { } Jump from; Label to; }; JSContext *cx; Compiler &cc; FrameState &frame; JSScript *script; Assembler masm; uint32 generation; uint32 lastGeneration; bool hasJump; Jump lastJump; /* :TODO: oom check */ Vector exits; Vector joins; public: StubCompiler(JSContext *cx, mjit::Compiler &cc, FrameState &frame, JSScript *script); bool init(uint32 nargs); size_t size() { return masm.size(); } uint8 *buffer() { return masm.buffer(); } #define STUB_CALL_TYPE(type) \ Call call(type stub) { \ return stubCall(JS_FUNC_TO_DATA_PTR(void *, stub)); \ } STUB_CALL_TYPE(JSObjStub); STUB_CALL_TYPE(VoidStub); #undef STUB_CALL_TYPE /* Exits from the fast path into the slow path. */ void linkExit(Jump j); void leave(); /* * Rejoins slow-path code back to the fast-path. The invalidation param * specifies how many stack slots below sp must not be reloaded from * registers. */ void rejoin(uint32 invalidationDepth); /* Finish all native code patching. */ void fixCrossJumps(uint8 *ncode, size_t offset, size_t total); void finalize(uint8 *ncode); private: Call stubCall(void *ptr); }; } /* namepsace mjit */ } /* namespace js */ #endif /* jsstub_compiler_h__ */