1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/jit/CompileWrappers.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,152 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + * vim: set ts=8 sts=4 et sw=4 tw=99:
1.6 + * This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef jit_CompileWrappers_h
1.11 +#define jit_CompileWrappers_h
1.12 +
1.13 +#ifdef JS_ION
1.14 +
1.15 +#include "jscntxt.h"
1.16 +
1.17 +namespace js {
1.18 +namespace jit {
1.19 +
1.20 +class JitRuntime;
1.21 +
1.22 +// During Ion compilation we need access to various bits of the current
1.23 +// compartment, runtime and so forth. However, since compilation can run off
1.24 +// thread while the main thread is actively mutating the VM, this access needs
1.25 +// to be restricted. The classes below give the compiler an interface to access
1.26 +// all necessary information in a threadsafe fashion.
1.27 +
1.28 +class CompileRuntime
1.29 +{
1.30 + JSRuntime *runtime();
1.31 +
1.32 + public:
1.33 + static CompileRuntime *get(JSRuntime *rt);
1.34 +
1.35 + bool onMainThread();
1.36 +
1.37 + js::PerThreadData *mainThread();
1.38 +
1.39 + // &mainThread.ionTop
1.40 + const void *addressOfIonTop();
1.41 +
1.42 + // rt->mainThread.jitStackLimit;
1.43 + const void *addressOfJitStackLimit();
1.44 +
1.45 + // &mainThread.ionJSContext
1.46 + const void *addressOfJSContext();
1.47 +
1.48 + // &mainThread.activation_
1.49 + const void *addressOfActivation();
1.50 +
1.51 + // &GetIonContext()->runtime->nativeIterCache.last
1.52 + const void *addressOfLastCachedNativeIterator();
1.53 +
1.54 +#ifdef JS_GC_ZEAL
1.55 + const void *addressOfGCZeal();
1.56 +#endif
1.57 +
1.58 + const void *addressOfInterrupt();
1.59 +
1.60 +#ifdef JS_THREADSAFE
1.61 + const void *addressOfInterruptPar();
1.62 +#endif
1.63 +
1.64 + const void *addressOfThreadPool();
1.65 +
1.66 + const JitRuntime *jitRuntime();
1.67 +
1.68 + // Compilation does not occur off thread when the SPS profiler is enabled.
1.69 + SPSProfiler &spsProfiler();
1.70 +
1.71 + bool signalHandlersInstalled();
1.72 + bool jitSupportsFloatingPoint();
1.73 + bool hadOutOfMemory();
1.74 +
1.75 + const JSAtomState &names();
1.76 + const StaticStrings &staticStrings();
1.77 + const Value &NaNValue();
1.78 + const Value &positiveInfinityValue();
1.79 +
1.80 +#ifdef DEBUG
1.81 + bool isInsideNursery(gc::Cell *cell);
1.82 +#endif
1.83 +
1.84 + // DOM callbacks must be threadsafe (and will hopefully be removed soon).
1.85 + const DOMCallbacks *DOMcallbacks();
1.86 +
1.87 + const MathCache *maybeGetMathCache();
1.88 +
1.89 +#ifdef JSGC_GENERATIONAL
1.90 + const Nursery &gcNursery();
1.91 +#endif
1.92 +};
1.93 +
1.94 +class CompileZone
1.95 +{
1.96 + Zone *zone();
1.97 +
1.98 + public:
1.99 + static CompileZone *get(Zone *zone);
1.100 +
1.101 + const void *addressOfNeedsBarrier();
1.102 +
1.103 + // allocator.arenas.getFreeList(allocKind)
1.104 + const void *addressOfFreeListFirst(gc::AllocKind allocKind);
1.105 + const void *addressOfFreeListLast(gc::AllocKind allocKind);
1.106 +};
1.107 +
1.108 +class CompileCompartment
1.109 +{
1.110 + JSCompartment *compartment();
1.111 +
1.112 + public:
1.113 + static CompileCompartment *get(JSCompartment *comp);
1.114 +
1.115 + CompileZone *zone();
1.116 + CompileRuntime *runtime();
1.117 +
1.118 + const void *addressOfEnumerators();
1.119 +
1.120 + const CallsiteCloneTable &callsiteClones();
1.121 +
1.122 + const JitCompartment *jitCompartment();
1.123 +
1.124 + bool hasObjectMetadataCallback();
1.125 +
1.126 + // Mirror CompartmentOptions.
1.127 + void setSingletonsAsValues();
1.128 +};
1.129 +
1.130 +class JitCompileOptions
1.131 +{
1.132 + public:
1.133 + JitCompileOptions();
1.134 + JitCompileOptions(JSContext *cx);
1.135 +
1.136 + bool cloneSingletons() const {
1.137 + return cloneSingletons_;
1.138 + }
1.139 +
1.140 + bool spsSlowAssertionsEnabled() const {
1.141 + return spsSlowAssertionsEnabled_;
1.142 + }
1.143 +
1.144 + private:
1.145 + bool cloneSingletons_;
1.146 + bool spsSlowAssertionsEnabled_;
1.147 +};
1.148 +
1.149 +
1.150 +} // namespace jit
1.151 +} // namespace js
1.152 +
1.153 +#endif // JS_ION
1.154 +
1.155 +#endif // jit_CompileWrappers_h
