sysdeps/x86_64/bits/link.h

   1 /* Copyright (C) 2004, 2005, 2009 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, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  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 /* Registers for entry into PLT on IA-32.  */
  26 typedef struct La_i86_regs
  27 {
  28   uint32_t lr_edx;
  29   uint32_t lr_ecx;
  30   uint32_t lr_eax;
  31   uint32_t lr_ebp;
  32   uint32_t lr_esp;
  33 } La_i86_regs;
  34
  35 /* Return values for calls from PLT on IA-32.  */
  36 typedef struct La_i86_retval
  37 {
  38   uint32_t lrv_eax;
  39   uint32_t lrv_edx;
  40   long double lrv_st0;
  41   long double lrv_st1;
  42 } La_i86_retval;
  43
  44
  45 __BEGIN_DECLS
  46
  47 extern Elf32_Addr la_i86_gnu_pltenter (Elf32_Sym *__sym, unsigned int __ndx,
  48                                        uintptr_t *__refcook,
  49                                        uintptr_t *__defcook,
  50                                        La_i86_regs *__regs,
  51                                        unsigned int *__flags,
  52                                        const char *__symname,
  53                                        long int *__framesizep);
  54 extern unsigned int la_i86_gnu_pltexit (Elf32_Sym *__sym, unsigned int __ndx,
  55                                         uintptr_t *__refcook,
  56                                         uintptr_t *__defcook,
  57                                         const La_i86_regs *__inregs,
  58                                         La_i86_retval *__outregs,
  59                                         const char *symname);
  60
  61 __END_DECLS
  62
  63 #else
  64
  65 /* Registers for entry into PLT on x86-64.  */
  66 # if __GNUC_PREREQ (4,0)
  67 typedef float La_x86_64_xmm __attribute__ ((__vector_size__ (16)));
  68 # else
  69 typedef float La_x86_64_xmm __attribute__ ((__mode__ (__V4SF__)));
  70 # endif
  71
  72 typedef struct La_x86_64_regs
  73 {
  74   uint64_t lr_rdx;
  75   uint64_t lr_r8;
  76   uint64_t lr_r9;
  77   uint64_t lr_rcx;
  78   uint64_t lr_rsi;
  79   uint64_t lr_rdi;
  80   uint64_t lr_rbp;
  81   uint64_t lr_rsp;
  82   La_x86_64_xmm lr_xmm[8];
  83 } La_x86_64_regs;
  84
  85 /* Return values for calls from PLT on x86-64.  */
  86 typedef struct La_x86_64_retval
  87 {
  88   uint64_t lrv_rax;
  89   uint64_t lrv_rdx;
  90   La_x86_64_xmm lrv_xmm0;
  91   La_x86_64_xmm lrv_xmm1;
  92   long double lrv_st0;
  93   long double lrv_st1;
  94 } La_x86_64_retval;
  95
  96
  97 __BEGIN_DECLS
  98
  99 extern Elf64_Addr la_x86_64_gnu_pltenter (Elf64_Sym *__sym,
 100                                           unsigned int __ndx,
 101                                           uintptr_t *__refcook,
 102                                           uintptr_t *__defcook,
 103                                           La_x86_64_regs *__regs,
 104                                           unsigned int *__flags,
 105                                           const char *__symname,
 106                                           long int *__framesizep);
 107 extern unsigned int la_x86_64_gnu_pltexit (Elf64_Sym *__sym,
 108                                            unsigned int __ndx,
 109                                            uintptr_t *__refcook,
 110                                            uintptr_t *__defcook,
 111                                            const La_x86_64_regs *__inregs,
 112                                            La_x86_64_retval *__outregs,
 113                                            const char *__symname);
 114
 115 __END_DECLS
 116
 117 #endif