sysdeps/s390/bits/link.h

   1 /* Copyright (C) 2005-2018 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #ifndef _LINK_H
  19 # error "Never include <bits/link.h> directly; use <link.h> instead."
  20 #endif
  21
  22 #if defined HAVE_S390_VX_ASM_SUPPORT
  23 typedef char La_s390_vr[16];
  24 #endif
  25
  26 #if __ELF_NATIVE_CLASS == 32
  27
  28 /* Registers for entry into PLT on s390-32.  */
  29 typedef struct La_s390_32_regs
  30 {
  31   uint32_t lr_r2;
  32   uint32_t lr_r3;
  33   uint32_t lr_r4;
  34   uint32_t lr_r5;
  35   uint32_t lr_r6;
  36   double lr_fp0;
  37   double lr_fp2;
  38 # if defined HAVE_S390_VX_ASM_SUPPORT
  39   La_s390_vr lr_v24;
  40   La_s390_vr lr_v25;
  41   La_s390_vr lr_v26;
  42   La_s390_vr lr_v27;
  43   La_s390_vr lr_v28;
  44   La_s390_vr lr_v29;
  45   La_s390_vr lr_v30;
  46   La_s390_vr lr_v31;
  47 # endif
  48 } La_s390_32_regs;
  49
  50 /* Return values for calls from PLT on s390-32.  */
  51 typedef struct La_s390_32_retval
  52 {
  53   uint32_t lrv_r2;
  54   uint32_t lrv_r3;
  55   double lrv_fp0;
  56 # if defined HAVE_S390_VX_ASM_SUPPORT
  57   La_s390_vr lrv_v24;
  58 # endif
  59 } La_s390_32_retval;
  60
  61
  62 __BEGIN_DECLS
  63
  64 extern Elf32_Addr la_s390_32_gnu_pltenter (Elf32_Sym *__sym,
  65                                            unsigned int __ndx,
  66                                            uintptr_t *__refcook,
  67                                            uintptr_t *__defcook,
  68                                            La_s390_32_regs *__regs,
  69                                            unsigned int *__flags,
  70                                            const char *__symname,
  71                                            long int *__framesizep);
  72 extern unsigned int la_s390_32_gnu_pltexit (Elf32_Sym *__sym,
  73                                             unsigned int __ndx,
  74                                             uintptr_t *__refcook,
  75                                             uintptr_t *__defcook,
  76                                             const La_s390_32_regs *__inregs,
  77                                             La_s390_32_retval *__outregs,
  78                                             const char *symname);
  79
  80 __END_DECLS
  81
  82 #else
  83
  84 /* Registers for entry into PLT on s390-64.  */
  85 typedef struct La_s390_64_regs
  86 {
  87   uint64_t lr_r2;
  88   uint64_t lr_r3;
  89   uint64_t lr_r4;
  90   uint64_t lr_r5;
  91   uint64_t lr_r6;
  92   double lr_fp0;
  93   double lr_fp2;
  94   double lr_fp4;
  95   double lr_fp6;
  96 # if defined HAVE_S390_VX_ASM_SUPPORT
  97   La_s390_vr lr_v24;
  98   La_s390_vr lr_v25;
  99   La_s390_vr lr_v26;
 100   La_s390_vr lr_v27;
 101   La_s390_vr lr_v28;
 102   La_s390_vr lr_v29;
 103   La_s390_vr lr_v30;
 104   La_s390_vr lr_v31;
 105 # endif
 106 } La_s390_64_regs;
 107
 108 /* Return values for calls from PLT on s390-64.  */
 109 typedef struct La_s390_64_retval
 110 {
 111   uint64_t lrv_r2;
 112   double lrv_fp0;
 113 # if defined HAVE_S390_VX_ASM_SUPPORT
 114   La_s390_vr lrv_v24;
 115 # endif
 116 } La_s390_64_retval;
 117
 118
 119 __BEGIN_DECLS
 120
 121 extern Elf64_Addr la_s390_64_gnu_pltenter (Elf64_Sym *__sym,
 122                                            unsigned int __ndx,
 123                                            uintptr_t *__refcook,
 124                                            uintptr_t *__defcook,
 125                                            La_s390_64_regs *__regs,
 126                                            unsigned int *__flags,
 127                                            const char *__symname,
 128                                            long int *__framesizep);
 129 extern unsigned int la_s390_64_gnu_pltexit (Elf64_Sym *__sym,
 130                                             unsigned int __ndx,
 131                                             uintptr_t *__refcook,
 132                                             uintptr_t *__defcook,
 133                                             const La_s390_64_regs *__inregs,
 134                                             La_s390_64_retval *__outregs,
 135                                             const char *__symname);
 136
 137 __END_DECLS
 138
 139 #endif