hphp/runtime/ext/std/ext_std_intrinsics.cpp

   1 /*
   2    +----------------------------------------------------------------------+
   3    | HipHop for PHP                                                       |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 2010-present Facebook, Inc. (http://www.facebook.com)  |
   6    | Copyright (c) 1997-2010 The PHP Group                                |
   7    +----------------------------------------------------------------------+
   8    | This source file is subject to version 3.01 of the PHP license,      |
   9    | that is bundled with this package in the file LICENSE, and is        |
  10    | available through the world-wide-web at the following url:           |
  11    | http://www.php.net/license/3_01.txt                                  |
  12    | If you did not receive a copy of the PHP license and are unable to   |
  13    | obtain it through the world-wide-web, please send a note to          |
  14    | license@php.net so we can mail you a copy immediately.               |
  15    +----------------------------------------------------------------------+
  16 */
  17 #include "hphp/runtime/ext/std/ext_std_intrinsics.h"
  18
  19 #include "hphp/runtime/base/builtin-functions.h"
  20 #include "hphp/runtime/base/surprise-flags.h"
  21 #include "hphp/runtime/vm/jit/inlining-decider.h"
  22 #include "hphp/runtime/vm/vm-regs.h"
  23
  24 namespace HPHP {
  25 ///////////////////////////////////////////////////////////////////////////////
  26
  27 void HHVM_FUNCTION(disable_inlining, const Variant& function) {
  28   ObjectData* obj = nullptr;
  29   HPHP::Class* cls = nullptr;
  30   StringData* invName = nullptr;
  31   const HPHP::Func* f = vm_decode_function(function, GetCallerFrame(),
  32                                            false, obj, cls, invName,
  33                                            DecodeFlags::LookupOnly);
  34   if (f == nullptr || f->isAbstract()) {
  35     raise_warning("disable_inlining(): undefined function");
  36     return;
  37   }
  38
  39   jit::InliningDecider::forbidInliningOf(f);
  40 }
  41
  42 void HHVM_FUNCTION(trigger_oom, bool oom) {
  43   if (oom) setSurpriseFlag(MemExceededFlag);
  44 }
  45
  46 void StandardExtension::initIntrinsics() {
  47   if (!RuntimeOption::EnableIntrinsicsExtension) return;
  48
  49   HHVM_FALIAS(__hhvm_intrinsics\\disable_inlining, disable_inlining);
  50   HHVM_FALIAS(__hhvm_intrinsics\\trigger_oom, trigger_oom);
  51   loadSystemlib("std_intrinsics");
  52 }
  53
  54 ///////////////////////////////////////////////////////////////////////////////
  55 } // namespace HPHP