1  /* PowerPC specific sotruss-lib functions.
       2     Copyright (C) 2013-2023 Free Software Foundation, Inc.
       3  
       4     This file is part of the GNU C Library.
       5  
       6     The GNU C Library is free software; you can redistribute it and/or
       7     modify it under the terms of the GNU Lesser General Public
       8     License as published by the Free Software Foundation; either
       9     version 2.1 of the License, or (at your option) any later version.
      10  
      11     The GNU C Library is distributed in the hope that it will be useful,
      12     but WITHOUT ANY WARRANTY; without even the implied warranty of
      13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14     Lesser General Public License for more details.
      15  
      16     You should have received a copy of the GNU Lesser General Public
      17     License along with the GNU C Library.  If not, see
      18     <https://www.gnu.org/licenses/>.  */
      19  
      20  #define HAVE_ARCH_PLTENTER
      21  #define HAVE_ARCH_PLTEXIT
      22  
      23  #include <elf/sotruss-lib.c>
      24  
      25  #ifdef __powerpc64__
      26  # if _CALL_ELF != 2
      27  #  define LA_PPC_REGS          La_ppc64_regs
      28  #  define LA_PPC_RETVAL        La_ppc64_retval
      29  #  define LA_PPC_GNU_PLTENTER  la_ppc64_gnu_pltenter
      30  #  define LA_PPC_GNU_PLTEXIT   la_ppc64_gnu_pltexit
      31  # else
      32  #  define LA_PPC_REGS          La_ppc64v2_regs
      33  #  define LA_PPC_RETVAL        La_ppc64v2_retval
      34  #  define LA_PPC_GNU_PLTENTER  la_ppc64v2_gnu_pltenter
      35  #  define LA_PPC_GNU_PLTEXIT   la_ppc64v2_gnu_pltexit
      36  # endif
      37  # else
      38  # define LA_PPC_REGS           La_ppc32_regs
      39  # define LA_PPC_RETVAL         La_ppc32_retval
      40  # define LA_PPC_GNU_PLTENTER   la_ppc32_gnu_pltenter
      41  # define LA_PPC_GNU_PLTEXIT    la_ppc32_gnu_pltexit
      42  #endif
      43  
      44  ElfW(Addr)
      45  LA_PPC_GNU_PLTENTER (ElfW(Sym) *sym __attribute__ ((unused)),
      46  		     unsigned int ndx __attribute__ ((unused)),
      47  		     uintptr_t *refcook, uintptr_t *defcook,
      48  		     LA_PPC_REGS *regs, unsigned int *flags,
      49  		     const char *symname, long int *framesizep)
      50  {
      51    print_enter (refcook, defcook, symname,
      52  	       regs->lr_reg[0], regs->lr_reg[1], regs->lr_reg[2], *flags);
      53  
      54    /* No need to copy anything, we will not need the parameters in any case.  */
      55    *framesizep = 0;
      56  
      57    return sym->st_value;
      58  }
      59  
      60  unsigned int
      61  LA_PPC_GNU_PLTEXIT (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook,
      62  		    uintptr_t *defcook,
      63  		    const struct LA_PPC_REGS *inregs,
      64  		    struct LA_PPC_RETVAL *outregs, const char *symname)
      65  {
      66    print_exit (refcook, defcook, symname, outregs->lrv_r3);
      67  
      68    return 0;
      69  }