dyld3/BootArgs.h

   1 /*
   2 * Copyright (c) 2017 Apple Inc. All rights reserved.
   3 *
   4 * @APPLE_LICENSE_HEADER_START@
   5 *
   6 * This file contains Original Code and/or Modifications of Original Code
   7 * as defined in and that are subject to the Apple Public Source License
   8 * Version 2.0 (the 'License'). You may not use this file except in
   9 * compliance with the License. Please obtain a copy of the License at
  10 * http://www.opensource.apple.com/apsl/ and read it before using this
  11 * file.
  12 *
  13 * The Original Code and all software distributed under the License are
  14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18 * Please see the License for the specific language governing rights and
  19 * limitations under the License.
  20 *
  21 * @APPLE_LICENSE_HEADER_END@
  22 */
  23
  24
  25 #ifndef __DYLD_BOOTARGS_H__
  26 #define __DYLD_BOOTARGS_H__
  27
  28 #include <cstdint>
  29
  30 #define VIS_HIDDEN __attribute__((visibility("hidden")))
  31
  32 namespace dyld3 {
  33 #if BUILDING_DYLD
  34     struct VIS_HIDDEN BootArgs {
  35         static bool forceCustomerCache();
  36         static bool forceDevelopmentCache();
  37         static bool forceDyld2();
  38         static bool forceDyld3();
  39         static bool enableDyldTestMode();
  40         static bool enableCompactImageInfo();
  41         static bool forceReadOnlyDataConst();
  42         static bool forceReadWriteDataConst();
  43         static void setFlags(uint64_t flags);
  44     private:
  45         static const uint64_t kForceCustomerCacheMask = 1<<0;
  46         static const uint64_t kDyldTestModeMask = 1<<1;
  47         static const uint64_t kForceDevelopmentCacheMask = 1<<2;
  48         static const uint64_t kForceDyld2CacheMask = 1<<15;
  49         static const uint64_t kForceDyld3CacheMask = 1<<16;
  50         static const uint64_t kEnableCompactImageInfoMask = 1<<17;
  51         static const uint64_t kForceReadOnlyDataConstMask = 1<<18;
  52         static const uint64_t kForceReadWriteDataConstMask = 1<<19;
  53         //FIXME: Move this into __DATA_CONST once it is enabled for dyld
  54         static uint64_t _flags;
  55     };
  56 #endif
  57
  58 } // namespace dyld3
  59
  60 #endif /* __DYLD_BOOTARGS_H__ */