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--- Libc/Libc-1725.40.4/os/linker_set.h
+++ /dev/null
@@ -1,251 +0,0 @@
-/*
- * Copyright (c) 2006-2008 Apple Inc. All rights reserved.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. The rights granted to you under the License
- * may not be used to create, or enable the creation or redistribution of,
- * unlawful or unlicensed copies of an Apple operating system, or to
- * circumvent, violate, or enable the circumvention or violation of, any
- * terms of an Apple operating system software license agreement.
- *
- * Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
- *
- *
- * Copyright (c) 1999 John D. Polstra
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- */
-
-#ifndef _SYS_LINKER_SET_H_
-#define _SYS_LINKER_SET_H_
-
-#include <sys/appleapiopts.h>
-#if !defined(KERNEL) || defined(__APPLE_API_PRIVATE)
-
-/*
- * The following macros are used to declare global sets of objects, which
- * are collected by the linker into a `linker set' as defined below.
- * For Mach-O, this is done by constructing a separate segment inside the
- * __DATA_CONST section for each set. The contents of this segment are an array
- * of pointers to the objects in the set.
- *
- * Note that due to limitations of the Mach-O format, there cannot
- * be more than 255 sections in a segment, so linker set usage should be
- * conserved. Set names may not exceed 16 characters.
- */
-
-#ifdef KERNEL
-# include <mach-o/loader.h>
-# include <libkern/kernel_mach_header.h>
-
-# define MACH_HEADER_TYPE kernel_mach_header_t
-# define GETSECTIONDATA_VARIANT getsectdatafromheader
-# define SECTDATA_SIZE_TYPE unsigned long
-# define MH_EXECUTE_HEADER &_mh_execute_header
-# define IMAGE_SLIDE_CORRECT 0
-#else
-# include <mach-o/ldsyms.h>
-# include <mach-o/getsect.h>
-# include <mach-o/loader.h>
-# include <mach-o/dyld.h>
-# include <mach-o/dyld_priv.h>
-# include <crt_externs.h>
-
-# if __LP64__
-# define MACH_HEADER_TYPE struct mach_header_64
-# define GETSECTIONDATA_VARIANT getsectdatafromheader_64
-# define SECTDATA_SIZE_TYPE uint64_t
-# define MH_EXECUTE_HEADER _NSGetMachExecuteHeader()
-# else
-# define MACH_HEADER_TYPE struct mach_header
-# define GETSECTIONDATA_VARIANT getsectdatafromheader
-# define SECTDATA_SIZE_TYPE uint32_t
-# define MH_EXECUTE_HEADER _NSGetMachExecuteHeader()
-# endif
-#endif
-
-#if __LP64__ && !(__x86_64__ || __i386__)
-# define LINKER_SET_ENTRY_PACKED
-# define LINKER_SET_SEGMENT __DATA_CONST
-# define LINKER_SET_SEGMENT_CSTR "__DATA_CONST"
-#else
-# define LINKER_SET_ENTRY_PACKED __attribute__((packed))
-# define LINKER_SET_SEGMENT __DATA
-# define LINKER_SET_SEGMENT_CSTR "__DATA"
-#endif
-
-/*
- * Private macros, not to be used outside this header file.
- *
- * The objective of this macro stack is to produce the following output,
- * given SET and SYM as arguments:
- *
- * void const * __set_SET_sym_SYM __attribute__((section("__DATA_CONST,SET"))) = & SYM
- */
-
-/* Wrap entries in a type that can be blacklisted from KASAN */
-struct linker_set_entry {
- void *ptr;
-} LINKER_SET_ENTRY_PACKED;
-
-#ifdef __LS_VA_STRINGIFY__
-# undef __LS_VA_STRINGIFY__
-#endif
-#ifdef __LS_VA_STRCONCAT__
-# undef __LS_VA_STRCONCAT__
-#endif
-#define __LS_VA_STRINGIFY(_x ...) #_x
-#define __LS_VA_STRCONCAT(_x, _y) __LS_VA_STRINGIFY(_x,_y)
-#define __LINKER_MAKE_SET(_set, _sym) \
- /*__unused*/ /*static*/ const struct linker_set_entry /*const*/ __set_##_set##_sym_##_sym \
- __attribute__ ((section(__LS_VA_STRCONCAT(LINKER_SET_SEGMENT,_set)),used)) = { (void *)&_sym }
-/* the line above is very fragile - if your compiler breaks linker sets,
- * just play around with "static", "const", "used" etc. :-) */
-
-/*
- * Public macros.
- */
-#define LINKER_SET_ENTRY(_set, _sym) __LINKER_MAKE_SET(_set, _sym)
-
-/*
- * FreeBSD compatibility.
- */
-#ifdef __APPLE_API_OBSOLETE
-# define TEXT_SET(_set, _sym) __LINKER_MAKE_SET(_set, _sym)
-# define DATA_SET(_set, _sym) __LINKER_MAKE_SET(_set, _sym)
-# define BSS_SET(_set, _sym) __LINKER_MAKE_SET(_set, _sym)
-# define ABS_SET(_set, _sym) __LINKER_MAKE_SET(_set, _sym)
-# define SET_ENTRY(_set, _sym) __LINKER_MAKE_SET(_set, _sym)
-#endif /* __APPLE_API_OBSOLETE */
-
-/*
- * Extended linker set API.
- *
- * Since linker sets are per-object-file, and we may have multiple
- * object files, we need to be able to specify which object's set
- * to scan.
- *
- * The set itself is a contiguous array of pointers to the objects
- * within the set.
- */
-
-/*
- * Public interface.
- *
- * void **LINKER_SET_OBJECT_BEGIN(_object, _set)
- * Preferred interface to linker_set_object_begin(), takes set name unquoted.
- * void **LINKER_SET_OBJECT_LIMIT(_object, _set)
- * Preferred interface to linker_set_object_begin(), takes set name unquoted.
- * LINKER_SET_OBJECT_FOREACH(_object, (set_member_type **)_pvar, _cast, _set)
- * Iterates over the members of _set within _object. Since the set contains
- * pointers to its elements, for a set of elements of type etyp, _pvar must
- * be (etyp **).
- * LINKER_SET_FOREACH((set_member_type **)_pvar, _cast, _set)
- *
- * Example of _cast: For the _pvar "struct sysctl_oid **oidpp", _cast would be
- * "struct sysctl_oid **"
- *
- */
-
-#define LINKER_SET_OBJECT_BEGIN(_object, _set) __linker_set_object_begin(_object, _set)
-#define LINKER_SET_OBJECT_LIMIT(_object, _set) __linker_set_object_limit(_object, _set)
-
-#define LINKER_SET_OBJECT_FOREACH(_object, _pvar, _cast, _set) \
- for (_pvar = (_cast) LINKER_SET_OBJECT_BEGIN(_object, _set); \
- _pvar < (_cast) LINKER_SET_OBJECT_LIMIT(_object, _set); \
- _pvar++)
-
-#define LINKER_SET_OBJECT_ITEM(_object, _cast, _set, _i) \
- (((_cast)(LINKER_SET_OBJECT_BEGIN(_object, _set)))[_i])
-
-#define LINKER_SET_FOREACH(_pvar, _cast, _set) \
- LINKER_SET_OBJECT_FOREACH((MACH_HEADER_TYPE *)MH_EXECUTE_HEADER, _pvar, _cast, _set)
-
-/*
- * Implementation.
- *
- * void **__linker_set_object_begin(_header, _set)
- * Returns a pointer to the first pointer in the linker set.
- * void **__linker_set_object_limi(_header, _set)
- * Returns an upper bound to the linker set (base + size).
- */
-
-static __inline intptr_t
-__linker_get_slide(struct mach_header *_header)
-{
-#ifndef KERNEL
- return _dyld_get_image_slide(_header);
-#else
- (void)_header;
- return 0;
-#endif
-}
-
-static __inline void **
-__linker_set_object_begin(MACH_HEADER_TYPE *_header, const char *_set)
-__attribute__((__const__));
-static __inline void **
-__linker_set_object_begin(MACH_HEADER_TYPE *_header, const char *_set)
-{
- char *_set_begin;
- SECTDATA_SIZE_TYPE _size;
-
- _set_begin = (char *)GETSECTIONDATA_VARIANT(_header, LINKER_SET_SEGMENT_CSTR, _set, &_size);
- _set_begin += __linker_get_slide((struct mach_header *)_header);
- return (void **)(uintptr_t)_set_begin;
-}
-
-static __inline void **
-__linker_set_object_limit(MACH_HEADER_TYPE *_header, const char *_set)
-__attribute__((__const__));
-static __inline void **
-__linker_set_object_limit(MACH_HEADER_TYPE *_header, const char *_set)
-{
- char *_set_begin;
- SECTDATA_SIZE_TYPE _size;
-
- _set_begin = (char *)GETSECTIONDATA_VARIANT(_header, LINKER_SET_SEGMENT_CSTR, _set, &_size);
- _set_begin += __linker_get_slide((struct mach_header *)_header);
-
- return (void **) ((uintptr_t) _set_begin + _size);
-}
-
-#endif /* !KERNEL || __APPLE_API_PRIVATE */
-
-#endif /* _SYS_LINKER_SET_H_ */