gdb/ia64-aix-nat.c

   1 /* Functions specific to running gdb native on IA-64 running AIX.
   2    Copyright 2000, 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 "inferior.h"
  23 #include "target.h"
  24 #include "gdbcore.h"
  25 #include <sys/procfs.h>
  26
  27 #include "symtab.h"
  28 #include "bfd.h"
  29 #include "symfile.h"
  30 #include "objfiles.h"
  31
  32 #include <sys/types.h>
  33 #include <fcntl.h>
  34 #include "gdb_stat.h"
  35
  36 void
  37 supply_gregset (prgregset_t *gregsetp)
  38 {
  39   int regi;
  40
  41   for (regi = IA64_GR0_REGNUM; regi <= IA64_GR31_REGNUM; regi++)
  42     {
  43       supply_register (regi,
  44                        (char *) &(gregsetp->__gpr[regi - IA64_GR0_REGNUM]));
  45     }
  46
  47   for (regi = IA64_BR0_REGNUM; regi <= IA64_BR7_REGNUM; regi++)
  48     {
  49       supply_register (regi,
  50                        (char *) &(gregsetp->__br[regi - IA64_BR0_REGNUM]));
  51     }
  52
  53   supply_register (IA64_PSR_REGNUM, (char *) &(gregsetp->__psr));
  54   supply_register (IA64_IP_REGNUM, (char *) &(gregsetp->__ip));
  55   supply_register (IA64_CFM_REGNUM, (char *) &(gregsetp->__ifs));
  56   supply_register (IA64_RSC_REGNUM, (char *) &(gregsetp->__rsc));
  57   supply_register (IA64_BSP_REGNUM, (char *) &(gregsetp->__bsp));
  58   supply_register (IA64_BSPSTORE_REGNUM, (char *) &(gregsetp->__bspstore));
  59   supply_register (IA64_RNAT_REGNUM, (char *) &(gregsetp->__rnat));
  60   supply_register (IA64_PFS_REGNUM, (char *) &(gregsetp->__pfs));
  61   supply_register (IA64_UNAT_REGNUM, (char *) &(gregsetp->__unat));
  62   supply_register (IA64_PR_REGNUM, (char *) &(gregsetp->__preds));
  63   supply_register (IA64_CCV_REGNUM, (char *) &(gregsetp->__ccv));
  64   supply_register (IA64_LC_REGNUM, (char *) &(gregsetp->__lc));
  65   supply_register (IA64_EC_REGNUM, (char *) &(gregsetp->__ec));
  66   /* FIXME: __nats */
  67   supply_register (IA64_FPSR_REGNUM, (char *) &(gregsetp->__fpsr));
  68
  69   /* These (for the most part) are pseudo registers and are obtained
  70      by other means.  Those that aren't are already handled by the
  71      code above.  */
  72   for (regi = IA64_GR32_REGNUM; regi <= IA64_GR127_REGNUM; regi++)
  73     register_valid[regi] = 1;
  74   for (regi = IA64_PR0_REGNUM; regi <= IA64_PR63_REGNUM; regi++)
  75     register_valid[regi] = 1;
  76   for (regi = IA64_VFP_REGNUM; regi <= NUM_REGS; regi++)
  77     register_valid[regi] = 1;
  78 }
  79
  80 void
  81 fill_gregset (prgregset_t *gregsetp, int regno)
  82 {
  83   int regi;
  84
  85 #define COPY_REG(_fld_,_regi_) \
  86   if ((regno == -1) || regno == _regi_) \
  87     memcpy (&(gregsetp->_fld_), &registers[REGISTER_BYTE (_regi_)], \
  88             REGISTER_RAW_SIZE (_regi_))
  89
  90   for (regi = IA64_GR0_REGNUM; regi <= IA64_GR31_REGNUM; regi++)
  91     {
  92       COPY_REG (__gpr[regi - IA64_GR0_REGNUM], regi);
  93     }
  94
  95   for (regi = IA64_BR0_REGNUM; regi <= IA64_BR7_REGNUM; regi++)
  96     {
  97       COPY_REG (__br[regi - IA64_BR0_REGNUM], regi);
  98     }
  99   COPY_REG (__psr, IA64_PSR_REGNUM);
 100   COPY_REG (__ip, IA64_IP_REGNUM);
 101   COPY_REG (__ifs, IA64_CFM_REGNUM);
 102   COPY_REG (__rsc, IA64_RSC_REGNUM);
 103   COPY_REG (__bsp, IA64_BSP_REGNUM);
 104
 105   /* Bad things happen if we don't update both bsp and bspstore at the
 106      same time.  */
 107   if (regno == IA64_BSP_REGNUM || regno == -1)
 108     {
 109       memcpy (&(gregsetp->__bspstore),
 110               &registers[REGISTER_BYTE (IA64_BSP_REGNUM)],
 111               REGISTER_RAW_SIZE (IA64_BSP_REGNUM));
 112       memcpy (&registers[REGISTER_BYTE (IA64_BSPSTORE_REGNUM)],
 113               &registers[REGISTER_BYTE (IA64_BSP_REGNUM)],
 114               REGISTER_RAW_SIZE (IA64_BSP_REGNUM));
 115     }
 116
 117 #if 0
 118   /* We never actually write to bspstore, or we'd have to do the same thing
 119      here too.  */
 120   COPY_REG (__bspstore, IA64_BSPSTORE_REGNUM);
 121 #endif
 122   COPY_REG (__rnat, IA64_RNAT_REGNUM);
 123   COPY_REG (__pfs, IA64_PFS_REGNUM);
 124   COPY_REG (__unat, IA64_UNAT_REGNUM);
 125   COPY_REG (__preds, IA64_PR_REGNUM);
 126   COPY_REG (__ccv, IA64_CCV_REGNUM);
 127   COPY_REG (__lc, IA64_LC_REGNUM);
 128   COPY_REG (__ec, IA64_EC_REGNUM);
 129   /* FIXME: __nats */
 130   COPY_REG (__fpsr, IA64_FPSR_REGNUM);
 131 #undef COPY_REG
 132 }
 133
 134 void
 135 supply_fpregset (prfpregset_t *fpregsetp)
 136 {
 137   register int regi;
 138
 139   for (regi = IA64_FR0_REGNUM; regi <= IA64_FR127_REGNUM; regi++)
 140     supply_register (regi,
 141                      (char *) &(fpregsetp->__fpr[regi - IA64_FR0_REGNUM]));
 142 }
 143
 144 void
 145 fill_fpregset (prfpregset_t *fpregsetp, int regno)
 146 {
 147   int regi;
 148   char *to;
 149   char *from;
 150
 151   for (regi = IA64_FR0_REGNUM; regi <= IA64_FR127_REGNUM; regi++)
 152     {
 153       if ((regno == -1) || (regno == regi))
 154         {
 155           from = (char *) &registers[REGISTER_BYTE (regi)];
 156           to = (char *) &(fpregsetp->__fpr[regi - IA64_FR0_REGNUM]);
 157           memcpy (to, from, REGISTER_RAW_SIZE (regi));
 158         }
 159     }
 160 }