ndk/platforms/android-21/arch-x86/usr/include/sys/cdefs_elf.h

   1 /*      $NetBSD: cdefs_elf.h,v 1.22 2005/02/26 22:25:34 perry Exp $     */
   2
   3 /*
   4  * Copyright (c) 1995, 1996 Carnegie-Mellon University.
   5  * All rights reserved.
   6  *
   7  * Author: Chris G. Demetriou
   8  *
   9  * Permission to use, copy, modify and distribute this software and
  10  * its documentation is hereby granted, provided that both the copyright
  11  * notice and this permission notice appear in all copies of the
  12  * software, derivative works or modified versions, and any portions
  13  * thereof, and that both notices appear in supporting documentation.
  14  *
  15  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  16  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
  17  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  18  *
  19  * Carnegie Mellon requests users of this software to return to
  20  *
  21  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  22  *  School of Computer Science
  23  *  Carnegie Mellon University
  24  *  Pittsburgh PA 15213-3890
  25  *
  26  * any improvements or extensions that they make and grant Carnegie the
  27  * rights to redistribute these changes.
  28  */
  29
  30 #ifndef _SYS_CDEFS_ELF_H_
  31 #define _SYS_CDEFS_ELF_H_
  32
  33 #ifdef __LEADING_UNDERSCORE
  34 #define _C_LABEL(x)     __CONCAT(_,x)
  35 #define _C_LABEL_STRING(x)      "_" x
  36 #else
  37 #define _C_LABEL(x)     x
  38 #define _C_LABEL_STRING(x)      x
  39 #endif
  40
  41 #define ___RENAME(x)    __asm__(___STRING(_C_LABEL(x)))
  42
  43 #define __indr_reference(sym,alias)     /* nada, since we do weak refs */
  44
  45 #define __strong_alias(alias,sym)                                       \
  46     __asm__(".global " _C_LABEL_STRING(#alias) "\n"                     \
  47             _C_LABEL_STRING(#alias) " = " _C_LABEL_STRING(#sym));
  48
  49 #define __weak_alias(alias,sym)                                         \
  50     __asm__(".weak " _C_LABEL_STRING(#alias) "\n"                       \
  51             _C_LABEL_STRING(#alias) " = " _C_LABEL_STRING(#sym));
  52 #define __weak_extern(sym)                                              \
  53     __asm__(".weak " _C_LABEL_STRING(#sym));
  54
  55 /* We use __warnattr instead of __warn_references.
  56  * TODO: remove this and put an empty definition in one of the upstream-* compatibility headers.
  57  */
  58 #define __warn_references(sym,msg)                                      \
  59     /*__asm__(".section .gnu.warning." #sym "\n\t.ascii \"" msg "\"\n\t.text");*/
  60
  61 #define __SECTIONSTRING(_sec, _str)                                     \
  62         __asm__(".section " #_sec "\n\t.asciz \"" _str "\"\n\t.previous")
  63
  64 /* Used to tag non-static symbols that are private and never exposed by the shared library. */
  65 #define __LIBC_HIDDEN__ __attribute__((visibility ("hidden")))
  66
  67 /* Like __LIBC_HIDDEN__, but preserves binary compatibility for LP32. */
  68 #ifdef __LP64__
  69 #define __LIBC64_HIDDEN__ __LIBC_HIDDEN__
  70 #else
  71 #define __LIBC64_HIDDEN__ __LIBC_ABI_PUBLIC__
  72 #endif
  73
  74 /* Used to tag non-static symbols that are public and exposed by the shared library. */
  75 #define __LIBC_ABI_PUBLIC__ __attribute__((visibility ("default")))
  76
  77 #define __IDSTRING(_n,_s)               __SECTIONSTRING(.ident,_s)
  78
  79 #define __RCSID(_s)                     __IDSTRING(rcsid,_s)
  80 #define __SCCSID(_s)
  81 #define __SCCSID2(_s)
  82 #if 0   /* XXX userland __COPYRIGHTs have \ns in them */
  83 #define __COPYRIGHT(_s)                 __SECTIONSTRING(.copyright,_s)
  84 #else
  85 #define __COPYRIGHT(_s)                                                 \
  86         static const char copyright[]                                   \
  87             __attribute__((__unused__,__section__(".copyright"))) = _s
  88 #endif
  89
  90 #define __KERNEL_RCSID(_n, _s)          __RCSID(_s)
  91 #define __KERNEL_SCCSID(_n, _s)
  92 #if 0   /* XXX see above */
  93 #define __KERNEL_COPYRIGHT(_n, _s)      __COPYRIGHT(_s)
  94 #else
  95 #define __KERNEL_COPYRIGHT(_n, _s)      __SECTIONSTRING(.copyright, _s)
  96 #endif
  97
  98 #ifndef __lint__
  99 #define __link_set_make_entry(set, sym)                                 \
 100         static void const * const __link_set_##set##_sym_##sym          \
 101             __section("link_set_" #set) __used = &sym
 102 #define __link_set_make_entry2(set, sym, n)                             \
 103         static void const * const __link_set_##set##_sym_##sym##_##n    \
 104             __section("link_set_" #set) __used = &sym[n]
 105 #else
 106 #define __link_set_make_entry(set, sym)                                 \
 107         extern void const * const __link_set_##set##_sym_##sym
 108 #define __link_set_make_entry2(set, sym, n)                             \
 109         extern void const * const __link_set_##set##_sym_##sym##_##n
 110 #endif /* __lint__ */
 111
 112 #define __link_set_add_text(set, sym)   __link_set_make_entry(set, sym)
 113 #define __link_set_add_rodata(set, sym) __link_set_make_entry(set, sym)
 114 #define __link_set_add_data(set, sym)   __link_set_make_entry(set, sym)
 115 #define __link_set_add_bss(set, sym)    __link_set_make_entry(set, sym)
 116 #define __link_set_add_text2(set, sym, n)   __link_set_make_entry2(set, sym, n)
 117 #define __link_set_add_rodata2(set, sym, n) __link_set_make_entry2(set, sym, n)
 118 #define __link_set_add_data2(set, sym, n)   __link_set_make_entry2(set, sym, n)
 119 #define __link_set_add_bss2(set, sym, n)    __link_set_make_entry2(set, sym, n)
 120
 121 #define __link_set_decl(set, ptype)                                     \
 122         extern ptype * const __start_link_set_##set[];                  \
 123         extern ptype * const __stop_link_set_##set[]                    \
 124
 125 #define __link_set_start(set)   (__start_link_set_##set)
 126 #define __link_set_end(set)     (__stop_link_set_##set)
 127
 128 #define __link_set_count(set)                                           \
 129         (__link_set_end(set) - __link_set_start(set))
 130
 131 #endif /* !_SYS_CDEFS_ELF_H_ */