1  /* Copyright (C) 2017-2023 Free Software Foundation, Inc.
       2  
       3  This file is free software; you can redistribute it and/or modify it
       4  under the terms of the GNU General Public License as published by the
       5  Free Software Foundation; either version 3, or (at your option) any
       6  later version.
       7  
       8  This file is distributed in the hope that it will be useful, but
       9  WITHOUT ANY WARRANTY; without even the implied warranty of
      10  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      11  General Public License for more details.
      12  
      13  Under Section 7 of GPL version 3, you are granted additional
      14  permissions described in the GCC Runtime Library Exception, version
      15  3.1, as published by the Free Software Foundation.
      16  
      17  You should have received a copy of the GNU General Public License and
      18  a copy of the GCC Runtime Library Exception along with this program;
      19  see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
      20  <http://www.gnu.org/licenses/>.  */
      21  
      22  #define FUNC_TYPE(X)	.type X,@function
      23  #define FUNC_SIZE(X)	.size X,.-X
      24  
      25  #define FUNC_BEGIN(X)		\
      26  	.globl X;		\
      27  	FUNC_TYPE (X);		\
      28  X:
      29  
      30  #define FUNC_END(X)		\
      31  	FUNC_SIZE(X)
      32  
      33  #define FUNC_ALIAS(X,Y)		\
      34  	.globl X;		\
      35  	X = Y
      36  
      37  #define CONCAT1(a, b)		CONCAT2(a, b)
      38  #define CONCAT2(a, b)		a ## b
      39  #define HIDDEN_JUMPTARGET(X)	CONCAT1(__hidden_, X)
      40  #define HIDDEN_DEF(X)		FUNC_ALIAS(HIDDEN_JUMPTARGET(X), X);     \
      41  				.hidden HIDDEN_JUMPTARGET(X)