gdb/sparc-linux-nat.c

   1 /* Native-dependent code for Linux/SPARC.
   2    Copyright 2001 Free Software Foundation, Inc.
   3
   4    This file is part of GDB.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program 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
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 #include "defs.h"
  22 #include "regcache.h"
  23
  24 #include <sys/procfs.h>
  25
  26 /* Prototypes for supply_gregset etc.  */
  27 #include "gregset.h"
  28
  29 void
  30 supply_gregset (elf_gregset_t *gregsetp)
  31 {
  32   elf_greg_t *regp = (elf_greg_t *) gregsetp;
  33   int i;
  34
  35   for (i = G0_REGNUM; i <= I7_REGNUM; i++)
  36     supply_register (i, (char *) (regp + (i - G0_REGNUM)));
  37
  38   supply_register (PS_REGNUM, (char *) (regp + 32));
  39
  40   supply_register (PC_REGNUM, (char *) (regp + 33));
  41   supply_register (NPC_REGNUM, (char *) (regp + 34));
  42   supply_register (Y_REGNUM, (char *) (regp + 35));
  43
  44   supply_register (WIM_REGNUM, (char *) (regp + 36));
  45   supply_register (TBR_REGNUM, (char *) (regp + 37));
  46
  47   /* Fill inaccessible registers with zero.  */
  48   supply_register (CPS_REGNUM, NULL);
  49 }
  50
  51 void
  52 fill_gregset (elf_gregset_t *gregsetp, int regno)
  53 {
  54   elf_greg_t *regp = (elf_greg_t *) gregsetp;
  55   int i;
  56
  57   for (i = G0_REGNUM; i <= I7_REGNUM; i++)
  58     if (regno == -1 || regno == i)
  59       regcache_collect (i, regp + (i - G0_REGNUM));
  60
  61   if (regno == -1 || regno == PS_REGNUM)
  62     regcache_collect (PS_REGNUM, regp + 32);
  63
  64   if (regno == -1 || regno == PC_REGNUM)
  65     regcache_collect (PC_REGNUM, regp + 33);
  66   if (regno == -1 || regno == NPC_REGNUM)
  67     regcache_collect (NPC_REGNUM, regp + 34);
  68   if (regno == -1 || regno == Y_REGNUM)
  69     regcache_collect (Y_REGNUM, regp + 35);
  70
  71   if (regno == -1 || regno == WIM_REGNUM)
  72     regcache_collect (WIM_REGNUM, regp + 36);
  73   if (regno == -1 || regno == TBR_REGNUM)
  74     regcache_collect (TBR_REGNUM, regp + 37);
  75 }
  76
  77 void
  78 supply_fpregset (elf_fpregset_t *fpregsetp)
  79 {
  80   int i;
  81
  82   for (i = FP0_REGNUM; i < FP0_REGNUM + 32; i++)
  83     supply_register (i, (char *) &fpregsetp->pr_fr.pr_regs[i - FP0_REGNUM]);
  84
  85   supply_register (FPS_REGNUM, (char *) &fpregsetp->pr_fsr);
  86 }
  87
  88 void
  89 fill_fpregset (elf_fpregset_t *fpregsetp, int regno)
  90 {
  91   int i;
  92
  93   for (i = FP0_REGNUM; i < FP0_REGNUM + 32; i++)
  94     if (regno == -1 || regno == i)
  95       regcache_collect (i, &fpregsetp->pr_fr.pr_regs[i - FP0_REGNUM]);
  96
  97   if (regno == -1 || regno == FPS_REGNUM)
  98     regcache_collect (FPS_REGNUM, &fpregsetp->pr_fsr);
  99 }