gdb/sparc64-linux-nat.c

   1 /* Native-dependent code for GNU/Linux UltraSPARC.
   2
   3    Copyright (C) 2003-2023 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 "regcache.h"
  22
  23 #include <sys/procfs.h>
  24 #include "gregset.h"
  25
  26 #include "sparc64-tdep.h"
  27 #include "sparc-tdep.h"
  28 #include "sparc-nat.h"
  29 #include "inferior.h"
  30 #include "target.h"
  31 #include "linux-nat.h"
  32
  33 class sparc64_linux_nat_target final : public linux_nat_target
  34 {
  35 public:
  36   /* Add our register access methods.  */
  37   void fetch_registers (struct regcache *regcache, int regnum) override
  38   { sparc_fetch_inferior_registers (this, regcache, regnum); }
  39
  40   void store_registers (struct regcache *regcache, int regnum) override
  41   { sparc_store_inferior_registers (this, regcache, regnum); }
  42
  43   /* Override linux_nat_target low methods.  */
  44
  45   /* ADI support */
  46   void low_forget_process (pid_t pid) override
  47   { sparc64_forget_process (pid); }
  48 };
  49
  50 static sparc64_linux_nat_target the_sparc64_linux_nat_target;
  51
  52 static const struct sparc_gregmap sparc64_linux_ptrace_gregmap =
  53 {
  54   16 * 8,                       /* "tstate" */
  55   17 * 8,                       /* %pc */
  56   18 * 8,                       /* %npc */
  57   19 * 8,                       /* %y */
  58   -1,                           /* %wim */
  59   -1,                           /* %tbr */
  60   0 * 8,                        /* %g1 */
  61   -1,                           /* %l0 */
  62   4                             /* sizeof (%y) */
  63 };
  64 \f
  65
  66 void
  67 supply_gregset (struct regcache *regcache, const prgregset_t *gregs)
  68 {
  69   sparc64_supply_gregset (sparc_gregmap, regcache, -1, gregs);
  70 }
  71
  72 void
  73 supply_fpregset (struct regcache *regcache, const prfpregset_t *fpregs)
  74 {
  75   sparc64_supply_fpregset (&sparc64_bsd_fpregmap, regcache, -1, fpregs);
  76 }
  77
  78 void
  79 fill_gregset (const struct regcache *regcache, prgregset_t *gregs, int regnum)
  80 {
  81   sparc64_collect_gregset (sparc_gregmap, regcache, regnum, gregs);
  82 }
  83
  84 void
  85 fill_fpregset (const struct regcache *regcache,
  86                prfpregset_t *fpregs, int regnum)
  87 {
  88   sparc64_collect_fpregset (&sparc64_bsd_fpregmap, regcache, regnum, fpregs);
  89 }
  90
  91 void _initialize_sparc64_linux_nat ();
  92 void
  93 _initialize_sparc64_linux_nat ()
  94 {
  95   sparc_fpregmap = &sparc64_bsd_fpregmap;
  96
  97   /* Register the target.  */
  98   linux_target = &the_sparc64_linux_nat_target;
  99   add_inf_child_target (&the_sparc64_linux_nat_target);
 100
 101   sparc_gregmap = &sparc64_linux_ptrace_gregmap;
 102 }