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 "regcache.h"
  26 #include <sys/procfs.h>
  27
  28 #include "symtab.h"
  29 #include "bfd.h"
  30 #include "symfile.h"
  31 #include "objfiles.h"
  32
  33 #include <sys/types.h>
  34 #include <fcntl.h>
  35 #include "gdb_stat.h"
  36
  37 void
  38 supply_gregset (prgregset_t *gregsetp)
  39 {
  40   int regi;
  41
  42   for (regi = IA64_GR0_REGNUM; regi <= IA64_GR31_REGNUM; regi++)
  43     {
  44       supply_register (regi,
  45                        (char *) &(gregsetp->__gpr[regi - IA64_GR0_REGNUM]));
  46     }
  47
  48   for (regi = IA64_BR0_REGNUM; regi <= IA64_BR7_REGNUM; regi++)
  49     {
  50       supply_register (regi,
  51                        (char *) &(gregsetp->__br[regi - IA64_BR0_REGNUM]));
  52     }
  53
  54   supply_register (IA64_PSR_REGNUM, (char *) &(gregsetp->__psr));
  55   supply_register (IA64_IP_REGNUM, (char *) &(gregsetp->__ip));
  56   supply_register (IA64_CFM_REGNUM, (char *) &(gregsetp->__ifs));
  57   supply_register (IA64_RSC_REGNUM, (char *) &(gregsetp->__rsc));
  58   supply_register (IA64_BSP_REGNUM, (char *) &(gregsetp->__bsp));
  59   supply_register (IA64_BSPSTORE_REGNUM, (char *) &(gregsetp->__bspstore));
  60   supply_register (IA64_RNAT_REGNUM, (char *) &(gregsetp->__rnat));
  61   supply_register (IA64_PFS_REGNUM, (char *) &(gregsetp->__pfs));
  62   supply_register (IA64_UNAT_REGNUM, (char *) &(gregsetp->__unat));
  63   supply_register (IA64_PR_REGNUM, (char *) &(gregsetp->__preds));
  64   supply_register (IA64_CCV_REGNUM, (char *) &(gregsetp->__ccv));
  65   supply_register (IA64_LC_REGNUM, (char *) &(gregsetp->__lc));
  66   supply_register (IA64_EC_REGNUM, (char *) &(gregsetp->__ec));
  67   /* FIXME: __nats */
  68   supply_register (IA64_FPSR_REGNUM, (char *) &(gregsetp->__fpsr));
  69
  70   /* These (for the most part) are pseudo registers and are obtained
  71      by other means.  Those that aren't are already handled by the
  72      code above.  */
  73   for (regi = IA64_GR32_REGNUM; regi <= IA64_GR127_REGNUM; regi++)
  74     deprecated_register_valid[regi] = 1;
  75   for (regi = IA64_PR0_REGNUM; regi <= IA64_PR63_REGNUM; regi++)
  76     deprecated_register_valid[regi] = 1;
  77   for (regi = IA64_VFP_REGNUM; regi <= NUM_REGS; regi++)
  78     deprecated_register_valid[regi] = 1;
  79 }
  80
  81 void
  82 fill_gregset (prgregset_t *gregsetp, int regno)
  83 {
  84   int regi;
  85
  86 #define COPY_REG(_fld_,_regi_) \
  87   if ((regno == -1) || regno == _regi_) \
  88     memcpy (&(gregsetp->_fld_), &deprecated_registers[REGISTER_BYTE (_regi_)], \
  89             REGISTER_RAW_SIZE (_regi_))
  90
  91   for (regi = IA64_GR0_REGNUM; regi <= IA64_GR31_REGNUM; regi++)
  92     {
  93       COPY_REG (__gpr[regi - IA64_GR0_REGNUM], regi);
  94     }
  95
  96   for (regi = IA64_BR0_REGNUM; regi <= IA64_BR7_REGNUM; regi++)
  97     {
  98       COPY_REG (__br[regi - IA64_BR0_REGNUM], regi);
  99     }
 100   COPY_REG (__psr, IA64_PSR_REGNUM);
 101   COPY_REG (__ip, IA64_IP_REGNUM);
 102   COPY_REG (__ifs, IA64_CFM_REGNUM);
 103   COPY_REG (__rsc, IA64_RSC_REGNUM);
 104   COPY_REG (__bsp, IA64_BSP_REGNUM);
 105
 106   /* Bad things happen if we don't update both bsp and bspstore at the
 107      same time.  */
 108   if (regno == IA64_BSP_REGNUM || regno == -1)
 109     {
 110       memcpy (&(gregsetp->__bspstore),
 111               &deprecated_registers[REGISTER_BYTE (IA64_BSP_REGNUM)],
 112               REGISTER_RAW_SIZE (IA64_BSP_REGNUM));
 113       memcpy (&deprecated_registers[REGISTER_BYTE (IA64_BSPSTORE_REGNUM)],
 114               &deprecated_registers[REGISTER_BYTE (IA64_BSP_REGNUM)],
 115               REGISTER_RAW_SIZE (IA64_BSP_REGNUM));
 116     }
 117
 118 #if 0
 119   /* We never actually write to bspstore, or we'd have to do the same thing
 120      here too.  */
 121   COPY_REG (__bspstore, IA64_BSPSTORE_REGNUM);
 122 #endif
 123   COPY_REG (__rnat, IA64_RNAT_REGNUM);
 124   COPY_REG (__pfs, IA64_PFS_REGNUM);
 125   COPY_REG (__unat, IA64_UNAT_REGNUM);
 126   COPY_REG (__preds, IA64_PR_REGNUM);
 127   COPY_REG (__ccv, IA64_CCV_REGNUM);
 128   COPY_REG (__lc, IA64_LC_REGNUM);
 129   COPY_REG (__ec, IA64_EC_REGNUM);
 130   /* FIXME: __nats */
 131   COPY_REG (__fpsr, IA64_FPSR_REGNUM);
 132 #undef COPY_REG
 133 }
 134
 135 void
 136 supply_fpregset (prfpregset_t *fpregsetp)
 137 {
 138   register int regi;
 139
 140   for (regi = IA64_FR0_REGNUM; regi <= IA64_FR127_REGNUM; regi++)
 141     supply_register (regi,
 142                      (char *) &(fpregsetp->__fpr[regi - IA64_FR0_REGNUM]));
 143 }
 144
 145 void
 146 fill_fpregset (prfpregset_t *fpregsetp, int regno)
 147 {
 148   int regi;
 149   char *to;
 150   char *from;
 151
 152   for (regi = IA64_FR0_REGNUM; regi <= IA64_FR127_REGNUM; regi++)
 153     {
 154       if ((regno == -1) || (regno == regi))
 155         {
 156           from = (char *) &deprecated_registers[REGISTER_BYTE (regi)];
 157           to = (char *) &(fpregsetp->__fpr[regi - IA64_FR0_REGNUM]);
 158           memcpy (to, from, REGISTER_RAW_SIZE (regi));
 159         }
 160     }
 161 }