gdb/sparc64-linux-nat.c

   1 /* Native-dependent code for GNU/Linux UltraSPARC.
   2
   3    Copyright (C) 2003-2024 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 "regcache.h"
  21
  22 #include <sys/procfs.h>
  23 #include "gregset.h"
  24
  25 #include "sparc64-tdep.h"
  26 #include "sparc-tdep.h"
  27 #include "sparc-nat.h"
  28 #include "inferior.h"
  29 #include "target.h"
  30 #include "linux-nat.h"
  31
  32 class sparc64_linux_nat_target final : public linux_nat_target
  33 {
  34 public:
  35   /* Add our register access methods.  */
  36   void fetch_registers (struct regcache *regcache, int regnum) override
  37   { sparc_fetch_inferior_registers (this, regcache, regnum); }
  38
  39   void store_registers (struct regcache *regcache, int regnum) override
  40   { sparc_store_inferior_registers (this, regcache, regnum); }
  41
  42   /* Override linux_nat_target low methods.  */
  43
  44   /* ADI support */
  45   void low_forget_process (pid_t pid) override
  46   { sparc64_forget_process (pid); }
  47 };
  48
  49 static sparc64_linux_nat_target the_sparc64_linux_nat_target;
  50
  51 static const struct sparc_gregmap sparc64_linux_ptrace_gregmap =
  52 {
  53   16 * 8,                       /* "tstate" */
  54   17 * 8,                       /* %pc */
  55   18 * 8,                       /* %npc */
  56   19 * 8,                       /* %y */
  57   -1,                           /* %wim */
  58   -1,                           /* %tbr */
  59   0 * 8,                        /* %g1 */
  60   -1,                           /* %l0 */
  61   4                             /* sizeof (%y) */
  62 };
  63 \f
  64
  65 void
  66 supply_gregset (struct regcache *regcache, const prgregset_t *gregs)
  67 {
  68   sparc64_supply_gregset (sparc_gregmap, regcache, -1, gregs);
  69 }
  70
  71 void
  72 supply_fpregset (struct regcache *regcache, const prfpregset_t *fpregs)
  73 {
  74   sparc64_supply_fpregset (&sparc64_bsd_fpregmap, regcache, -1, fpregs);
  75 }
  76
  77 void
  78 fill_gregset (const struct regcache *regcache, prgregset_t *gregs, int regnum)
  79 {
  80   sparc64_collect_gregset (sparc_gregmap, regcache, regnum, gregs);
  81 }
  82
  83 void
  84 fill_fpregset (const struct regcache *regcache,
  85                prfpregset_t *fpregs, int regnum)
  86 {
  87   sparc64_collect_fpregset (&sparc64_bsd_fpregmap, regcache, regnum, fpregs);
  88 }
  89
  90 void _initialize_sparc64_linux_nat ();
  91 void
  92 _initialize_sparc64_linux_nat ()
  93 {
  94   sparc_fpregmap = &sparc64_bsd_fpregmap;
  95
  96   /* Register the target.  */
  97   linux_target = &the_sparc64_linux_nat_target;
  98   add_inf_child_target (&the_sparc64_linux_nat_target);
  99
 100   sparc_gregmap = &sparc64_linux_ptrace_gregmap;
 101 }