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Diffstat (limited to 'include/set-hooks.h')
| -rw-r--r-- | include/set-hooks.h | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/include/set-hooks.h b/include/set-hooks.h deleted file mode 100644 index 7264f61c19..0000000000 --- a/include/set-hooks.h +++ /dev/null @@ -1,96 +0,0 @@ -/* Macros for using symbol sets for running lists of functions. - Copyright (C) 1994-2023 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#ifndef _SET_HOOKS_H -#define _SET_HOOKS_H 1 - -#define __need_size_t -#include <stddef.h> -#include <sys/cdefs.h> -#include <libc-symbols.h> - -#include "set-hooks-arch.h" - -#ifdef symbol_set_define -/* Define a hook variable called NAME. Functions put on this hook take - arguments described by PROTO. Use `text_set_element (NAME, FUNCTION)' - from include/libc-symbols.h to add a function to the hook. */ - -# define DEFINE_HOOK(NAME, PROTO) \ - typedef void __##NAME##_hook_function_t PROTO; \ - symbol_set_define (NAME) - -# define DECLARE_HOOK(NAME, PROTO) \ - typedef void __##NAME##_hook_function_t PROTO;\ - symbol_set_declare (NAME) - -/* Run all the functions hooked on the set called NAME. - Each function is called like this: `function ARGS'. */ - -# define RUN_HOOK(NAME, ARGS) \ -do { \ - void *const *ptr; \ - for (ptr = (void *const *) symbol_set_first_element (NAME); \ - ! symbol_set_end_p (NAME, ptr); ++ptr) \ - (*(__##NAME##_hook_function_t *) *ptr) ARGS; \ -} while (0) - -/* Define a hook variable with NAME and PROTO, and a function called RUNNER - which calls each function on the hook in turn, with ARGS. */ - -# define DEFINE_HOOK_RUNNER(name, runner, proto, args) \ -DEFINE_HOOK (name, proto); \ -extern void runner proto; void runner proto { RUN_HOOK (name, args); } - -# ifdef SET_RELHOOK -/* This is similar to RUN_RELHOOK, but the hooks were registered with - * SET_RELHOOK so that a relative offset was computed by the linker - * rather than an absolute address by the dynamic linker. */ -# define RUN_RELHOOK(NAME, ARGS) \ -do { \ - void *const *ptr; \ - for (ptr = (void *const *) symbol_set_first_element (NAME); \ - ! symbol_set_end_p (NAME, ptr); ++ptr) { \ - __##NAME##_hook_function_t *f = \ - (void*) ((uintptr_t) ptr + (ptrdiff_t) *ptr); \ - (*f) ARGS; \ - } \ -} while (0) -# else -# define SET_RELHOOK(NAME, HOOK) text_set_element (NAME, HOOK) -# define RUN_RELHOOK(NAME, ARGS) RUN_HOOK(NAME, ARGS) -# endif - -#else - -/* The system does not provide necessary support for this. */ -# define DEFINE_HOOK(NAME, PROTO) - -# define DECLARE_HOOK(NAME, PROTO) - -# define RUN_HOOK(NAME, ARGS) - -# define DEFINE_HOOK_RUNNER(name, runner, proto, args) - -# define SET_RELHOOK(NAME, HOOK) - -# define RUN_RELHOOK(NAME, ARGS) - -#endif - -#endif /* set-hooks.h */ |