1  /* Copyright (C) 2005-2023 Free Software Foundation, Inc.
       2  
       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 License as
       7     published by the Free Software Foundation; either version 2.1 of the
       8     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     <https://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  typedef union
      24  {
      25    float s;
      26    double d;
      27    long double q;
      28  } La_aarch64_vector;
      29  
      30  /* Registers for entry into PLT on AArch64.  */
      31  typedef struct La_aarch64_regs
      32  {
      33    uint64_t          lr_xreg[9];
      34    La_aarch64_vector lr_vreg[8];
      35    uint64_t          lr_sp;
      36    uint64_t          lr_lr;
      37    void              *lr_vpcs;
      38  } La_aarch64_regs;
      39  
      40  /* Return values for calls from PLT on AArch64.  */
      41  typedef struct La_aarch64_retval
      42  {
      43    /* Up to eight integer registers can be used for a return value.  */
      44    uint64_t          lrv_xreg[8];
      45    /* Up to eight V registers can be used for a return value.  */
      46    La_aarch64_vector lrv_vreg[8];
      47    void              *lrv_vpcs;
      48  } La_aarch64_retval;
      49  __BEGIN_DECLS
      50  
      51  extern ElfW(Addr)
      52  la_aarch64_gnu_pltenter (ElfW(Sym) *__sym, unsigned int __ndx,
      53  			 uintptr_t *__refcook,
      54  			 uintptr_t *__defcook,
      55  			 La_aarch64_regs *__regs,
      56  			 unsigned int *__flags,
      57  			 const char *__symname,
      58  			 long int *__framesizep);
      59  
      60  extern unsigned int
      61  la_aarch64_gnu_pltexit (ElfW(Sym) *__sym, unsigned int __ndx,
      62  			uintptr_t *__refcook,
      63  			uintptr_t *__defcook,
      64  			const La_aarch64_regs *__inregs,
      65  			La_aarch64_retval *__outregs,
      66  			const char *__symname);
      67  
      68  __END_DECLS