gdb/sparc-linux-nat.c

   1 /* Native-dependent code for GNU/Linux SPARC.
   2
   3    Copyright 2001, 2002, 2003 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 #include "sparc-tdep.h"
  25
  26 #include <sys/procfs.h>
  27
  28 /* Prototypes for supply_gregset etc.  */
  29 #include "gregset.h"
  30
  31 void
  32 supply_gregset (elf_gregset_t *gregsetp)
  33 {
  34   elf_greg_t *regp = (elf_greg_t *) gregsetp;
  35   int i;
  36
  37   for (i = G0_REGNUM; i <= I7_REGNUM; i++)
  38     supply_register (i, (char *) (regp + (i - G0_REGNUM)));
  39
  40   supply_register (PS_REGNUM, (char *) (regp + 32));
  41
  42   supply_register (PC_REGNUM, (char *) (regp + 33));
  43   supply_register (DEPRECATED_NPC_REGNUM, (char *) (regp + 34));
  44   supply_register (Y_REGNUM, (char *) (regp + 35));
  45
  46   supply_register (WIM_REGNUM, (char *) (regp + 36));
  47   supply_register (TBR_REGNUM, (char *) (regp + 37));
  48
  49   /* Fill inaccessible registers with zero.  */
  50   supply_register (CPS_REGNUM, NULL);
  51 }
  52
  53 void
  54 fill_gregset (elf_gregset_t *gregsetp, int regno)
  55 {
  56   elf_greg_t *regp = (elf_greg_t *) gregsetp;
  57   int i;
  58
  59   for (i = G0_REGNUM; i <= I7_REGNUM; i++)
  60     if (regno == -1 || regno == i)
  61       regcache_collect (i, regp + (i - G0_REGNUM));
  62
  63   if (regno == -1 || regno == PS_REGNUM)
  64     regcache_collect (PS_REGNUM, regp + 32);
  65
  66   if (regno == -1 || regno == PC_REGNUM)
  67     regcache_collect (PC_REGNUM, regp + 33);
  68   if (regno == -1 || regno == DEPRECATED_NPC_REGNUM)
  69     regcache_collect (DEPRECATED_NPC_REGNUM, regp + 34);
  70   if (regno == -1 || regno == Y_REGNUM)
  71     regcache_collect (Y_REGNUM, regp + 35);
  72
  73   if (regno == -1 || regno == WIM_REGNUM)
  74     regcache_collect (WIM_REGNUM, regp + 36);
  75   if (regno == -1 || regno == TBR_REGNUM)
  76     regcache_collect (TBR_REGNUM, regp + 37);
  77 }
  78
  79 void
  80 supply_fpregset (elf_fpregset_t *fpregsetp)
  81 {
  82   int i;
  83
  84   for (i = FP0_REGNUM; i < FP0_REGNUM + 32; i++)
  85     supply_register (i, (char *) &fpregsetp->pr_fr.pr_regs[i - FP0_REGNUM]);
  86
  87   supply_register (FPS_REGNUM, (char *) &fpregsetp->pr_fsr);
  88 }
  89
  90 void
  91 fill_fpregset (elf_fpregset_t *fpregsetp, int regno)
  92 {
  93   int i;
  94
  95   for (i = FP0_REGNUM; i < FP0_REGNUM + 32; i++)
  96     if (regno == -1 || regno == i)
  97       regcache_collect (i, &fpregsetp->pr_fr.pr_regs[i - FP0_REGNUM]);
  98
  99   if (regno == -1 || regno == FPS_REGNUM)
 100     regcache_collect (FPS_REGNUM, &fpregsetp->pr_fsr);
 101 }