sysdeps/powerpc/bits/link.h

   1 /* Machine-specific declarations for dynamic linker interface.  PowerPC version
   2    Copyright (C) 2004-2018 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 _LINK_H
  20 # error "Never include <bits/link.h> directly; use <link.h> instead."
  21 #endif
  22
  23
  24 #if __ELF_NATIVE_CLASS == 32
  25
  26 /* Registers for entry into PLT on PPC32.  */
  27 typedef struct La_ppc32_regs
  28 {
  29   uint32_t lr_reg[8];
  30   double lr_fp[8];
  31   uint32_t lr_vreg[12][4];
  32   uint32_t lr_r1;
  33   uint32_t lr_lr;
  34 } La_ppc32_regs;
  35
  36 /* Return values for calls from PLT on PPC32.  */
  37 typedef struct La_ppc32_retval
  38 {
  39   uint32_t lrv_r3;
  40   uint32_t lrv_r4;
  41   double lrv_fp[8];
  42   uint32_t lrv_v2[4];
  43 } La_ppc32_retval;
  44
  45
  46 __BEGIN_DECLS
  47
  48 extern Elf32_Addr la_ppc32_gnu_pltenter (Elf32_Sym *__sym,
  49                                          unsigned int __ndx,
  50                                          uintptr_t *__refcook,
  51                                          uintptr_t *__defcook,
  52                                          La_ppc32_regs *__regs,
  53                                          unsigned int *__flags,
  54                                          const char *__symname,
  55                                          long int *__framesizep);
  56 extern unsigned int la_ppc32_gnu_pltexit (Elf32_Sym *__sym,
  57                                           unsigned int __ndx,
  58                                           uintptr_t *__refcook,
  59                                           uintptr_t *__defcook,
  60                                           const La_ppc32_regs *__inregs,
  61                                           La_ppc32_retval *__outregs,
  62                                           const char *__symname);
  63
  64 __END_DECLS
  65
  66 #elif __ELF_NATIVE_CLASS == 64
  67 # if _CALL_ELF != 2
  68
  69 /* Registers for entry into PLT on PPC64.  */
  70 typedef struct La_ppc64_regs
  71 {
  72   uint64_t lr_reg[8];
  73   double lr_fp[13];
  74   uint32_t __padding;
  75   uint32_t lr_vrsave;
  76   uint32_t lr_vreg[12][4];
  77   uint64_t lr_r1;
  78   uint64_t lr_lr;
  79 } La_ppc64_regs;
  80
  81 /* Return values for calls from PLT on PPC64.  */
  82 typedef struct La_ppc64_retval
  83 {
  84   uint64_t lrv_r3;
  85   uint64_t lrv_r4;
  86   double lrv_fp[4];     /* f1-f4, float - complex long double.  */
  87   uint32_t lrv_v2[4];   /* v2.  */
  88 } La_ppc64_retval;
  89
  90
  91 __BEGIN_DECLS
  92
  93 extern Elf64_Addr la_ppc64_gnu_pltenter (Elf64_Sym *__sym,
  94                                          unsigned int __ndx,
  95                                          uintptr_t *__refcook,
  96                                          uintptr_t *__defcook,
  97                                          La_ppc64_regs *__regs,
  98                                          unsigned int *__flags,
  99                                          const char *__symname,
 100                                          long int *__framesizep);
 101 extern unsigned int la_ppc64_gnu_pltexit (Elf64_Sym *__sym,
 102                                           unsigned int __ndx,
 103                                           uintptr_t *__refcook,
 104                                           uintptr_t *__defcook,
 105                                           const La_ppc64_regs *__inregs,
 106                                           La_ppc64_retval *__outregs,
 107                                           const char *__symname);
 108
 109 __END_DECLS
 110
 111 # else
 112
 113 /* Registers for entry into PLT on PPC64 in the ELFv2 ABI.  */
 114 typedef struct La_ppc64v2_regs
 115 {
 116   uint64_t lr_reg[8];
 117   double lr_fp[13];
 118   uint32_t __padding;
 119   uint32_t lr_vrsave;
 120   uint32_t lr_vreg[12][4] __attribute__ ((aligned (16)));
 121   uint64_t lr_r1;
 122   uint64_t lr_lr;
 123 } La_ppc64v2_regs;
 124
 125 /* Return values for calls from PLT on PPC64 in the ELFv2 ABI.  */
 126 typedef struct La_ppc64v2_retval
 127 {
 128   uint64_t lrv_r3;
 129   uint64_t lrv_r4;
 130   double lrv_fp[10];
 131   uint32_t lrv_vreg[8][4] __attribute__ ((aligned (16)));
 132 } La_ppc64v2_retval;
 133
 134
 135 __BEGIN_DECLS
 136
 137 extern Elf64_Addr la_ppc64v2_gnu_pltenter (Elf64_Sym *__sym,
 138                                            unsigned int __ndx,
 139                                            uintptr_t *__refcook,
 140                                            uintptr_t *__defcook,
 141                                            La_ppc64v2_regs *__regs,
 142                                            unsigned int *__flags,
 143                                            const char *__symname,
 144                                            long int *__framesizep);
 145 extern unsigned int la_ppc64v2_gnu_pltexit (Elf64_Sym *__sym,
 146                                             unsigned int __ndx,
 147                                             uintptr_t *__refcook,
 148                                             uintptr_t *__defcook,
 149                                             const La_ppc64v2_regs *__inregs,
 150                                             La_ppc64v2_retval *__outregs,
 151                                             const char *__symname);
 152
 153 __END_DECLS
 154
 155 # endif
 156 #endif