sysdeps/powerpc/sotruss-lib.c

   1 /* PowerPC specific sotruss-lib functions.
   2    Copyright (C) 2013-2021 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 }