ports/sysdeps/hppa/dl-fptr.h

   1 /* Function descriptors.  HPPA version.
   2    Copyright (C) 2003-2014 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library.  If not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef dl_hppa_fptr_h
  20 #define dl_hppa_fptr_h 1
  21
  22 #include <sysdeps/generic/dl-fptr.h>
  23
  24 /* Initialize function pointer code. Call before relocation processing.  */
  25 extern void _dl_fptr_init (void);
  26
  27 /* There are currently 33 dynamic symbols in ld.so.
  28    ELF_MACHINE_BOOT_FPTR_TABLE_LEN needs to be at least that big.  */
  29 #define ELF_MACHINE_BOOT_FPTR_TABLE_LEN 64
  30
  31 #define ELF_MACHINE_LOAD_ADDRESS(var, symbol) \
  32   asm (                                                         \
  33 "       b,l     1f,%0\n"                                        \
  34 "       depi    0,31,2,%0\n"                                    \
  35 "1:     addil   L'" #symbol " - ($PIC_pcrel$0 - 8),%0\n"        \
  36 "       ldo     R'" #symbol " - ($PIC_pcrel$0 - 12)(%%r1),%0\n" \
  37    : "=&r" (var) : : "r1");
  38
  39 #endif /* !dl_hppa_fptr_h */