util/smmstoretool/udk2017.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 #ifndef SMMSTORETOOL__UDK2017_H__
   4 #define SMMSTORETOOL__UDK2017_H__
   5
   6 #include <UDK2017/MdePkg/Include/Uefi/UefiBaseType.h>
   7 #include <UDK2017/MdePkg/Include/Uefi/UefiMultiPhase.h>
   8 #include <UDK2017/MdePkg/Include/Pi/PiFirmwareVolume.h>
   9 #include <UDK2017/MdeModulePkg/Include/Guid/VariableFormat.h>
  10
  11 /*
  12  * ProcessorBind.h contains `#pragma GCC visibility push(hidden)` guarded by an
  13  * identical condition, but there is no corresponding `pop` pragma. This can
  14  * cause trouble for code following headers above including libc headers because
  15  * linker suddenly considers declarations from them (e.g., `strcmp()`) to be
  16  * hidden.
  17  *
  18  * In order to address this situation all UDK2017 headers used by this tool
  19  * must be listed above and included indirectly through this header which
  20  * restores default visibility.
  21  *
  22  * Mind that this issue appears only if the following conditions are satisfied
  23  * and not all toolchains are configured to build position-independent code by
  24  * default (as if -fpic or -fpie appears on compilation command-line).
  25  */
  26 #if defined(__GNUC__) && defined(__pic__) && !defined(USING_LTO)
  27 #pragma GCC visibility pop
  28 #endif
  29
  30 #endif // SMMSTORETOOL__UDK2017_H__