gdb/arm-fbsd-nat.c

   1 /* Native-dependent code for FreeBSD/arm.
   2
   3    Copyright (C) 2017-2022 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #include "defs.h"
  21 #include "target.h"
  22
  23 #include <sys/types.h>
  24 #include <sys/ptrace.h>
  25 #include <machine/reg.h>
  26
  27 #include "fbsd-nat.h"
  28 #include "arm-fbsd-tdep.h"
  29 #include "inf-ptrace.h"
  30
  31 struct arm_fbsd_nat_target : public fbsd_nat_target
  32 {
  33   void fetch_registers (struct regcache *, int) override;
  34   void store_registers (struct regcache *, int) override;
  35   const struct target_desc *read_description () override;
  36 };
  37
  38 static arm_fbsd_nat_target the_arm_fbsd_nat_target;
  39
  40 /* Fetch register REGNUM from the inferior.  If REGNUM is -1, do this
  41    for all registers.  */
  42
  43 void
  44 arm_fbsd_nat_target::fetch_registers (struct regcache *regcache, int regnum)
  45 {
  46   fetch_register_set<struct reg> (regcache, regnum, PT_GETREGS,
  47                                   &arm_fbsd_gregset);
  48 #ifdef PT_GETVFPREGS
  49   fetch_register_set<struct vfpreg> (regcache, regnum, PT_GETVFPREGS,
  50                                      &arm_fbsd_vfpregset);
  51 #endif
  52 }
  53
  54 /* Store register REGNUM back into the inferior.  If REGNUM is -1, do
  55    this for all registers.  */
  56
  57 void
  58 arm_fbsd_nat_target::store_registers (struct regcache *regcache, int regnum)
  59 {
  60   store_register_set<struct reg> (regcache, regnum, PT_GETREGS, PT_SETREGS,
  61                                   &arm_fbsd_gregset);
  62 #ifdef PT_GETVFPREGS
  63   store_register_set<struct vfpreg> (regcache, regnum, PT_GETVFPREGS,
  64                                      PT_SETVFPREGS, &arm_fbsd_vfpregset);
  65 #endif
  66 }
  67
  68 /* Implement the to_read_description method.  */
  69
  70 const struct target_desc *
  71 arm_fbsd_nat_target::read_description ()
  72 {
  73   const struct target_desc *desc;
  74
  75   desc = arm_fbsd_read_description_auxv (this);
  76   if (desc == NULL)
  77     desc = this->beneath ()->read_description ();
  78   return desc;
  79 }
  80
  81 void _initialize_arm_fbsd_nat ();
  82 void
  83 _initialize_arm_fbsd_nat ()
  84 {
  85   add_inf_child_target (&the_arm_fbsd_nat_target);
  86 }