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Diffstat (limited to 'elf/dl-tunables.h')
| -rw-r--r-- | elf/dl-tunables.h | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/elf/dl-tunables.h b/elf/dl-tunables.h deleted file mode 100644 index 6c49dcbf47..0000000000 --- a/elf/dl-tunables.h +++ /dev/null @@ -1,115 +0,0 @@ -/* The tunable framework. See the README to know how to use the tunable in - a glibc module. - - Copyright (C) 2016-2017 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 - <http://www.gnu.org/licenses/>. */ - -#ifndef _TUNABLES_H_ -#define _TUNABLES_H_ - -#if !HAVE_TUNABLES -static inline void -__always_inline -__tunables_init (char **unused __attribute__ ((unused))) -{ - /* This is optimized out if tunables are not enabled. */ -} -#else - -# include <stddef.h> -# include "dl-tunable-types.h" - -/* A tunable. */ -struct _tunable -{ - const char *name; /* Internal name of the tunable. */ - tunable_type_t type; /* Data type of the tunable. */ - tunable_val_t val; /* The value. */ - bool initialized; /* Flag to indicate that the tunable is - initialized. */ - tunable_seclevel_t security_level; /* Specify the security level for the - tunable with respect to AT_SECURE - programs. See description of - tunable_seclevel_t to see a - description of the values. - - Note that even if the tunable is - read, it may not get used by the - target module if the value is - considered unsafe. */ - /* Compatibility elements. */ - const char *env_alias; /* The compatibility environment - variable name. */ -}; - -typedef struct _tunable tunable_t; - -/* Full name for a tunable is top_ns.tunable_ns.id. */ -# define TUNABLE_NAME_S(top,ns,id) #top "." #ns "." #id - -# define TUNABLE_ENUM_NAME(__top,__ns,__id) TUNABLE_ENUM_NAME1 (__top,__ns,__id) -# define TUNABLE_ENUM_NAME1(__top,__ns,__id) __top ## _ ## __ns ## _ ## __id - -# include "dl-tunable-list.h" - -extern void __tunables_init (char **); -extern void __tunable_get_val (tunable_id_t, void *, tunable_callback_t); -extern void __tunable_set_val (tunable_id_t, void *); -rtld_hidden_proto (__tunables_init) -rtld_hidden_proto (__tunable_get_val) - -/* Define TUNABLE_GET and TUNABLE_SET in short form if TOP_NAMESPACE and - TUNABLE_NAMESPACE are defined. This is useful shorthand to get and set - tunables within a module. */ -#if defined TOP_NAMESPACE && defined TUNABLE_NAMESPACE -# define TUNABLE_GET(__id, __type, __cb) \ - TUNABLE_GET_FULL (TOP_NAMESPACE, TUNABLE_NAMESPACE, __id, __type, __cb) -# define TUNABLE_SET(__id, __type, __val) \ - TUNABLE_SET_FULL (TOP_NAMESPACE, TUNABLE_NAMESPACE, __id, __type, __val) -#else -# define TUNABLE_GET(__top, __ns, __id, __type, __cb) \ - TUNABLE_GET_FULL (__top, __ns, __id, __type, __cb) -# define TUNABLE_SET(__top, __ns, __id, __type, __val) \ - TUNABLE_SET_FULL (__top, __ns, __id, __type, __val) -#endif - -/* Get and return a tunable value. If the tunable was set externally and __CB - is defined then call __CB before returning the value. */ -# define TUNABLE_GET_FULL(__top, __ns, __id, __type, __cb) \ -({ \ - tunable_id_t id = TUNABLE_ENUM_NAME (__top, __ns, __id); \ - __type ret; \ - __tunable_get_val (id, &ret, __cb); \ - ret; \ -}) - -/* Set a tunable value. */ -# define TUNABLE_SET_FULL(__top, __ns, __id, __type, __val) \ -({ \ - __tunable_set_val (TUNABLE_ENUM_NAME (__top, __ns, __id), \ - & (__type) {__val}); \ -}) - -/* Namespace sanity for callback functions. Use this macro to keep the - namespace of the modules clean. */ -# define TUNABLE_CALLBACK(__name) _dl_tunable_ ## __name - -# define TUNABLES_FRONTEND_valstring 1 -/* The default value for TUNABLES_FRONTEND. */ -# define TUNABLES_FRONTEND_yes TUNABLES_FRONTEND_valstring -#endif -#endif |