static bool
SendFunctionsToPerf(JSContext *cx, AsmJSModule &module)
{
if (!PerfFuncEnabled())
return true;
AsmJSPerfSpewer perfSpewer;
unsigned long base = (unsigned long) module.functionCode();
const AsmJSModule::PostLinkFailureInfo &info = module.postLinkFailureInfo();
const char *filename = const_cast<char *>(info.scriptSource->filename());
for (unsigned i = 0; i < module.numPerfFunctions(); i++) {
const AsmJSModule::ProfiledFunction &func = module.perfProfiledFunction(i);
unsigned long start = base + (unsigned long) func.startCodeOffset;
unsigned long end = base + (unsigned long) func.endCodeOffset;
JS_ASSERT(end >= start);
unsigned long size = (end - start);
JSAutoByteString bytes;
const char *method_name = AtomToPrintableString(cx, func.name, &bytes);
if (!method_name)
return false;
unsigned lineno = func.lineno;
unsigned columnIndex = func.columnIndex;
perfSpewer.writeFunctionMap(start, size, filename, lineno, columnIndex, method_name);
}
return true;
}
static bool
SendBlocksToPerf(JSContext *cx, AsmJSModule &module)
{
if (!PerfBlockEnabled())
return true;
AsmJSPerfSpewer spewer;
unsigned long funcBaseAddress = (unsigned long) module.functionCode();
const AsmJSModule::PostLinkFailureInfo &info = module.postLinkFailureInfo();
const char *filename = const_cast<char *>(info.scriptSource->filename());
for (unsigned i = 0; i < module.numPerfBlocksFunctions(); i++) {
const AsmJSModule::ProfiledBlocksFunction &func = module.perfProfiledBlocksFunction(i);
unsigned long size = (unsigned long)func.endCodeOffset - (unsigned long)func.startCodeOffset;
JSAutoByteString bytes;
const char *method_name = AtomToPrintableString(cx, func.name, &bytes);
if (!method_name)
return false;
spewer.writeBlocksMap(funcBaseAddress, func.startCodeOffset, size, filename, method_name, func.blocks);
}
return true;
}
static bool
HandleDynamicLinkFailure(JSContext *cx, CallArgs args, AsmJSModule &module, HandlePropertyName name)
{
if (cx->isExceptionPending())
return false;
const AsmJSModule::PostLinkFailureInfo &info = module.postLinkFailureInfo();
uint32_t length = info.bufEnd - info.bufStart;
Rooted<JSStableString*> src(cx, info.scriptSource->substring(cx, info.bufStart, info.bufEnd));
if (!src)
return false;
RootedFunction fun(cx, NewFunction(cx, NullPtr(), NULL, 0, JSFunction::INTERPRETED,
cx->global(), name, JSFunction::FinalizeKind,
TenuredObject));
if (!fun)
return false;
AutoNameVector formals(cx);
formals.reserve(3);
if (module.globalArgumentName())
formals.infallibleAppend(module.globalArgumentName());
if (module.importArgumentName())
formals.infallibleAppend(module.importArgumentName());
if (module.bufferArgumentName())
formals.infallibleAppend(module.bufferArgumentName());
CompileOptions options(cx);
options.setPrincipals(cx->compartment()->principals)
.setOriginPrincipals(info.scriptSource->originPrincipals())
.setCompileAndGo(false)
.setNoScriptRval(false);
if (!frontend::CompileFunctionBody(cx, &fun, options, formals, src->chars().get(), length))
return false;
// Call the function we just recompiled.
unsigned argc = args.length();
InvokeArgs args2(cx);
if (!args2.init(argc))
return false;
args2.setCallee(ObjectValue(*fun));
args2.setThis(args.thisv());
for (unsigned i = 0; i < argc; i++)
args2[i].set(args[i]);
if (!Invoke(cx, args2))
return false;
args.rval().set(args2.rval());
return true;
}
static bool
HandleDynamicLinkFailure(JSContext *cx, CallArgs args, AsmJSModule &module, HandlePropertyName name)
{
if (cx->isExceptionPending())
return false;
const AsmJSModule::PostLinkFailureInfo &info = module.postLinkFailureInfo();
uint32_t length = info.bufEnd_ - info.bufStart_;
Rooted<JSFlatString*> src(cx, info.scriptSource_->substring(cx, info.bufStart_, info.bufEnd_));
const jschar *chars = src->chars();
RootedFunction fun(cx, NewFunction(cx, NullPtr(), NULL, 0, JSFunction::INTERPRETED,
cx->global(), name));
if (!fun)
return false;
AutoNameVector formals(cx);
formals.reserve(3);
if (module.globalArgumentName())
formals.infallibleAppend(module.globalArgumentName());
if (module.importArgumentName())
formals.infallibleAppend(module.importArgumentName());
if (module.bufferArgumentName())
formals.infallibleAppend(module.bufferArgumentName());
if (!frontend::CompileFunctionBody(cx, &fun, info.options_, formals, chars, length,
/* isAsmJSRecompile = */ true))
return false;
// Call the function we just recompiled.
unsigned argc = args.length();
JS_ASSERT(argc <= 3);
InvokeArgsGuard args2;
if (!cx->stack.pushInvokeArgs(cx, args.length(), &args2))
return false;
args2.setCallee(ObjectValue(*fun));
args2.setThis(args.thisv());
if (argc > 0)
args2[0] = args[0];
if (argc > 1)
args2[1] = args[1];
if (argc > 2)
args2[2] = args[2];
if (!Invoke(cx, args2))
return false;
args.rval().set(args2.rval());
return true;
}
