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      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 typedef float La_x86_64_ymm __attribute__ ((__vector_size__ (32)));
     69 # else
     70 typedef float La_x86_64_xmm __attribute__ ((__mode__ (__V4SF__)));
     71 # endif
     72 
     73 typedef union
     74 {
     75 # if __GNUC_PREREQ (4,0)
     76   La_x86_64_ymm ymm[2];
     77 # endif
     78   La_x86_64_xmm xmm[4];
     79 } La_x86_64_vector __attribute__ ((aligned(16)));
     80 
     81 typedef struct La_x86_64_regs
     82 {
     83   uint64_t lr_rdx;
     84   uint64_t lr_r8;
     85   uint64_t lr_r9;
     86   uint64_t lr_rcx;
     87   uint64_t lr_rsi;
     88   uint64_t lr_rdi;
     89   uint64_t lr_rbp;
     90   uint64_t lr_rsp;
     91   La_x86_64_xmm lr_xmm[8];
     92   La_x86_64_vector lr_vector[8];
     93 } La_x86_64_regs;
     94 
     95 /* Return values for calls from PLT on x86-64.  */
     96 typedef struct La_x86_64_retval
     97 {
     98   uint64_t lrv_rax;
     99   uint64_t lrv_rdx;
    100   La_x86_64_xmm lrv_xmm0;
    101   La_x86_64_xmm lrv_xmm1;
    102   long double lrv_st0;
    103   long double lrv_st1;
    104   La_x86_64_vector lrv_vector0;
    105   La_x86_64_vector lrv_vector1;
    106 } La_x86_64_retval;
    107 
    108 
    109 __BEGIN_DECLS
    110 
    111 extern Elf64_Addr la_x86_64_gnu_pltenter (Elf64_Sym *__sym,
    112 					  unsigned int __ndx,
    113 					  uintptr_t *__refcook,
    114 					  uintptr_t *__defcook,
    115 					  La_x86_64_regs *__regs,
    116 					  unsigned int *__flags,
    117 					  const char *__symname,
    118 					  long int *__framesizep);
    119 extern unsigned int la_x86_64_gnu_pltexit (Elf64_Sym *__sym,
    120 					   unsigned int __ndx,
    121 					   uintptr_t *__refcook,
    122 					   uintptr_t *__defcook,
    123 					   const La_x86_64_regs *__inregs,
    124 					   La_x86_64_retval *__outregs,
    125 					   const char *__symname);
    126 
    127 __END_DECLS
    128 
    129 #endif
    130