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      1 /* Copyright (C) 2004, 2005 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
    118