/ util / smmstoretool / udk2017.h
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__