1 /* Common argp_print_version_hook for all tools. 2 Copyright (C) 2017 The Qt Company Ltd. 3 This file is part of elfutils. 4 5 This file is free software; you can redistribute it and/or modify 6 it under the terms of either 7 8 * the GNU Lesser General Public License as published by the Free 9 Software Foundation; either version 3 of the License, or (at 10 your option) any later version 11 12 or 13 14 * the GNU General Public License as published by the Free 15 Software Foundation; either version 2 of the License, or (at 16 your option) any later version 17 18 or both in parallel, as here. 19 20 elfutils is distributed in the hope that it will be useful, but 21 WITHOUT ANY WARRANTY; without even the implied warranty of 22 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 23 General Public License for more details. 24 25 You should have received copies of the GNU General Public License and 26 the GNU Lesser General Public License along with this program. If 27 not, see <http://www.gnu.org/licenses/>. */ 28 29 #ifndef PRINTVERSION_H 30 #define PRINTVERSION_H 1 31 32 #include <argp.h> 33 #include <stdio.h> 34 35 /* Defined in version.c. Common ARGP_PROGRAM_VERSION_HOOK_DEF. */ 36 void print_version (FILE *stream, struct argp_state *state); 37 38 /* We need define two variables, argp_program_version_hook and 39 argp_program_bug_address, in all programs. argp.h declares these 40 variables as non-const (which is correct in general). But we can 41 do better, it is not going to change. So we want to move them into 42 the .rodata section. Define macros to do the trick. */ 43 #define ARGP_PROGRAM_VERSION_HOOK_DEF \ 44 void (*const apvh) (FILE *, struct argp_state *) \ 45 __asm ("argp_program_version_hook") 46 #define ARGP_PROGRAM_BUG_ADDRESS_DEF \ 47 const char *const apba__ __asm ("argp_program_bug_address") 48 49 #endif // PRINTVERSION_H 50