static bool
SendBlocksToPerf(JSContext *cx, AsmJSModule &module)
{
if (!PerfBlockEnabled())
return true;
unsigned long funcBaseAddress = (unsigned long) module.codeBase();
const char *filename = module.scriptSource()->filename();
for (unsigned i = 0; i < module.numPerfBlocksFunctions(); i++) {
const AsmJSModule::ProfiledBlocksFunction &func = module.perfProfiledBlocksFunction(i);
size_t size = func.endCodeOffset - func.startCodeOffset;
JSAutoByteString bytes;
const char *name = AtomToPrintableString(cx, func.name, &bytes);
if (!name)
return false;
writePerfSpewerAsmJSBlocksMap(funcBaseAddress, func.startCodeOffset,
func.endInlineCodeOffset, size, filename, name, func.blocks);
}
return true;
}
static bool
SendFunctionsToPerf(JSContext *cx, AsmJSModule &module)
{
if (!PerfFuncEnabled())
return true;
uintptr_t base = (uintptr_t) module.codeBase();
const char *filename = module.scriptSource()->filename();
for (unsigned i = 0; i < module.numPerfFunctions(); i++) {
const AsmJSModule::ProfiledFunction &func = module.perfProfiledFunction(i);
uintptr_t start = base + (unsigned long) func.startCodeOffset;
uintptr_t end = base + (unsigned long) func.endCodeOffset;
JS_ASSERT(end >= start);
size_t size = end - start;
JSAutoByteString bytes;
const char *name = AtomToPrintableString(cx, func.name, &bytes);
if (!name)
return false;
writePerfSpewerAsmJSFunctionMap(start, size, filename, func.lineno, func.columnIndex, name);
}
return true;
}
static bool
SendModuleToAttachedProfiler(JSContext* cx, AsmJSModule& module)
{
#if defined(MOZ_VTUNE)
if (IsVTuneProfilingActive() && !SendFunctionsToVTune(cx, module))
return false;
#endif
#if defined(JS_ION_PERF)
if (module.numExportedFunctions() > 0) {
size_t firstEntryCode = size_t(module.codeBase() + module.functionBytes());
writePerfSpewerAsmJSEntriesAndExits(firstEntryCode, module.codeBytes() - module.functionBytes());
}
if (!SendFunctionsToPerf(cx, module))
return false;
#endif
return true;
}
static bool
SendFunctionsToVTune(JSContext *cx, AsmJSModule &module)
{
uint8_t *base = module.codeBase();
for (unsigned i = 0; i < module.numProfiledFunctions(); i++) {
const AsmJSModule::ProfiledFunction &func = module.profiledFunction(i);
uint8_t *start = base + func.startCodeOffset;
uint8_t *end = base + func.endCodeOffset;
JS_ASSERT(end >= start);
unsigned method_id = iJIT_GetNewMethodID();
if (method_id == 0)
return false;
JSAutoByteString bytes;
const char *method_name = AtomToPrintableString(cx, func.name, &bytes);
if (!method_name)
return false;
iJIT_Method_Load method;
method.method_id = method_id;
method.method_name = const_cast<char *>(method_name);
method.method_load_address = (void *)start;
method.method_size = unsigned(end - start);
method.line_number_size = 0;
method.line_number_table = nullptr;
method.class_id = 0;
method.class_file_name = nullptr;
method.source_file_name = nullptr;
iJIT_NotifyEvent(iJVM_EVENT_TYPE_METHOD_LOAD_FINISHED, (void *)&method);
}
return true;
}
static bool
DynamicallyLinkModule(JSContext* cx, const CallArgs& args, AsmJSModule& module)
{
module.setIsDynamicallyLinked(cx->runtime());
HandleValue globalVal = args.get(0);
HandleValue importVal = args.get(1);
HandleValue bufferVal = args.get(2);
Rooted<ArrayBufferObjectMaybeShared*> heap(cx);
if (module.hasArrayView()) {
if (module.isSharedView() && !IsSharedArrayBuffer(bufferVal))
return LinkFail(cx, "shared views can only be constructed onto SharedArrayBuffer");
if (!module.isSharedView() && !IsArrayBuffer(bufferVal))
return LinkFail(cx, "unshared views can only be constructed onto ArrayBuffer");
heap = &AsAnyArrayBuffer(bufferVal);
if (!LinkModuleToHeap(cx, module, heap))
return false;
}
AutoObjectVector ffis(cx);
if (!ffis.resize(module.numFFIs()))
return false;
for (unsigned i = 0; i < module.numGlobals(); i++) {
AsmJSModule::Global& global = module.global(i);
switch (global.which()) {
case AsmJSModule::Global::Variable:
if (!ValidateGlobalVariable(cx, module, global, importVal))
return false;
break;
case AsmJSModule::Global::FFI:
if (!ValidateFFI(cx, global, importVal, &ffis))
return false;
break;
case AsmJSModule::Global::ArrayView:
case AsmJSModule::Global::SharedArrayView:
case AsmJSModule::Global::ArrayViewCtor:
if (!ValidateArrayView(cx, global, globalVal, module.hasArrayView() && module.isSharedView()))
return false;
break;
case AsmJSModule::Global::ByteLength:
if (!ValidateByteLength(cx, globalVal))
return false;
break;
case AsmJSModule::Global::MathBuiltinFunction:
if (!ValidateMathBuiltinFunction(cx, global, globalVal))
return false;
break;
case AsmJSModule::Global::AtomicsBuiltinFunction:
if (!ValidateAtomicsBuiltinFunction(cx, global, globalVal))
return false;
break;
case AsmJSModule::Global::Constant:
if (!ValidateConstant(cx, global, globalVal))
return false;
break;
case AsmJSModule::Global::SimdCtor:
if (!ValidateSimdType(cx, global, globalVal))
return false;
break;
case AsmJSModule::Global::SimdOperation:
if (!ValidateSimdOperation(cx, global, globalVal))
return false;
break;
}
}
for (unsigned i = 0; i < module.numExits(); i++)
module.exitIndexToGlobalDatum(i).fun = &ffis[module.exit(i).ffiIndex()]->as<JSFunction>();
module.initGlobalNaN();
// See the comment in AllocateExecutableMemory.
ExecutableAllocator::makeExecutable(module.codeBase(), module.codeBytes());
return true;
}
