gdb/sparc-linux-nat.c

   1 /* Native-dependent code for GNU/Linux SPARC.
   2
   3    Copyright 2001, 2002 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 2 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, write to the Free Software
  19    Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 #include "defs.h"
  23 #include "regcache.h"
  24
  25 #include <sys/procfs.h>
  26
  27 /* Prototypes for supply_gregset etc.  */
  28 #include "gregset.h"
  29
  30 void
  31 supply_gregset (elf_gregset_t *gregsetp)
  32 {
  33   elf_greg_t *regp = (elf_greg_t *) gregsetp;
  34   int i;
  35
  36   for (i = G0_REGNUM; i <= I7_REGNUM; i++)
  37     supply_register (i, (char *) (regp + (i - G0_REGNUM)));
  38
  39   supply_register (PS_REGNUM, (char *) (regp + 32));
  40
  41   supply_register (PC_REGNUM, (char *) (regp + 33));
  42   supply_register (NPC_REGNUM, (char *) (regp + 34));
  43   supply_register (Y_REGNUM, (char *) (regp + 35));
  44
  45   supply_register (WIM_REGNUM, (char *) (regp + 36));
  46   supply_register (TBR_REGNUM, (char *) (regp + 37));
  47
  48   /* Fill inaccessible registers with zero.  */
  49   supply_register (CPS_REGNUM, NULL);
  50 }
  51
  52 void
  53 fill_gregset (elf_gregset_t *gregsetp, int regno)
  54 {
  55   elf_greg_t *regp = (elf_greg_t *) gregsetp;
  56   int i;
  57
  58   for (i = G0_REGNUM; i <= I7_REGNUM; i++)
  59     if (regno == -1 || regno == i)
  60       regcache_collect (i, regp + (i - G0_REGNUM));
  61
  62   if (regno == -1 || regno == PS_REGNUM)
  63     regcache_collect (PS_REGNUM, regp + 32);
  64
  65   if (regno == -1 || regno == PC_REGNUM)
  66     regcache_collect (PC_REGNUM, regp + 33);
  67   if (regno == -1 || regno == NPC_REGNUM)
  68     regcache_collect (NPC_REGNUM, regp + 34);
  69   if (regno == -1 || regno == Y_REGNUM)
  70     regcache_collect (Y_REGNUM, regp + 35);
  71
  72   if (regno == -1 || regno == WIM_REGNUM)
  73     regcache_collect (WIM_REGNUM, regp + 36);
  74   if (regno == -1 || regno == TBR_REGNUM)
  75     regcache_collect (TBR_REGNUM, regp + 37);
  76 }
  77
  78 void
  79 supply_fpregset (elf_fpregset_t *fpregsetp)
  80 {
  81   int i;
  82
  83   for (i = FP0_REGNUM; i < FP0_REGNUM + 32; i++)
  84     supply_register (i, (char *) &fpregsetp->pr_fr.pr_regs[i - FP0_REGNUM]);
  85
  86   supply_register (FPS_REGNUM, (char *) &fpregsetp->pr_fsr);
  87 }
  88
  89 void
  90 fill_fpregset (elf_fpregset_t *fpregsetp, int regno)
  91 {
  92   int i;
  93
  94   for (i = FP0_REGNUM; i < FP0_REGNUM + 32; i++)
  95     if (regno == -1 || regno == i)
  96       regcache_collect (i, &fpregsetp->pr_fr.pr_regs[i - FP0_REGNUM]);
  97
  98   if (regno == -1 || regno == FPS_REGNUM)
  99     regcache_collect (FPS_REGNUM, &fpregsetp->pr_fsr);
 100 }