gdb/altos-xdep.c

   1 /* OBSOLETE /* Low level interface to ptrace, for GDB when running under m68k SVR2 Unix */
   2 /* OBSOLETE    on Altos 3068.  Report bugs to Jyrki Kuoppala <jkp@cs.hut.fi> */
   3 /* OBSOLETE    Copyright (C) 1989, 1991 Free Software Foundation, Inc. */
   4 /* OBSOLETE  */
   5 /* OBSOLETE This file is part of GDB. */
   6 /* OBSOLETE  */
   7 /* OBSOLETE This program is free software; you can redistribute it and/or modify */
   8 /* OBSOLETE it under the terms of the GNU General Public License as published by */
   9 /* OBSOLETE the Free Software Foundation; either version 2 of the License, or */
  10 /* OBSOLETE (at your option) any later version. */
  11 /* OBSOLETE  */
  12 /* OBSOLETE This program is distributed in the hope that it will be useful, */
  13 /* OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of */
  14 /* OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the */
  15 /* OBSOLETE GNU General Public License for more details. */
  16 /* OBSOLETE  */
  17 /* OBSOLETE You should have received a copy of the GNU General Public License */
  18 /* OBSOLETE along with this program; if not, write to the Free Software */
  19 /* OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  *x/ */
  20 /* OBSOLETE  */
  21 /* OBSOLETE #include "defs.h" */
  22 /* OBSOLETE #include "frame.h" */
  23 /* OBSOLETE #include "inferior.h" */
  24 /* OBSOLETE  */
  25 /* OBSOLETE #ifdef USG */
  26 /* OBSOLETE #include <sys/types.h> */
  27 /* OBSOLETE #endif */
  28 /* OBSOLETE  */
  29 /* OBSOLETE #include <sys/param.h> */
  30 /* OBSOLETE #include <sys/dir.h> */
  31 /* OBSOLETE #include <signal.h> */
  32 /* OBSOLETE #include <sys/ioctl.h> */
  33 /* OBSOLETE #include <fcntl.h> */
  34 /* OBSOLETE #ifdef USG */
  35 /* OBSOLETE #include <sys/page.h> */
  36 /* OBSOLETE #ifdef ALTOS */
  37 /* OBSOLETE #include <sys/net.h> */
  38 /* OBSOLETE #include <errno.h> */
  39 /* OBSOLETE #endif */
  40 /* OBSOLETE #endif */
  41 /* OBSOLETE  */
  42 /* OBSOLETE #include "gdbcore.h" */
  43 /* OBSOLETE #include <sys/user.h>               /* After a.out.h  *x/ */
  44 /* OBSOLETE #include <sys/file.h> */
  45 /* OBSOLETE #include "gdb_stat.h" */
  46 /* OBSOLETE  */
  47 /* OBSOLETE \f */
  48 /* OBSOLETE /* Work with core dump and executable files, for GDB.  */
  49 /* OBSOLETE    This code would be in corefile.c if it weren't machine-dependent. *x/ */
  50 /* OBSOLETE  */
  51 /* OBSOLETE void */
  52 /* OBSOLETE core_file_command (filename, from_tty) */
  53 /* OBSOLETE      char *filename; */
  54 /* OBSOLETE      int from_tty; */
  55 /* OBSOLETE { */
  56 /* OBSOLETE   int val; */
  57 /* OBSOLETE  */
  58 /* OBSOLETE   /* Discard all vestiges of any previous core file */
  59 /* OBSOLETE      and mark data and stack spaces as empty.  *x/ */
  60 /* OBSOLETE  */
  61 /* OBSOLETE   if (corefile) */
  62 /* OBSOLETE     xfree (corefile); */
  63 /* OBSOLETE   corefile = 0; */
  64 /* OBSOLETE  */
  65 /* OBSOLETE   if (corechan >= 0) */
  66 /* OBSOLETE     close (corechan); */
  67 /* OBSOLETE   corechan = -1; */
  68 /* OBSOLETE  */
  69 /* OBSOLETE   data_start = 0; */
  70 /* OBSOLETE   data_end = 0; */
  71 /* OBSOLETE   stack_start = STACK_END_ADDR; */
  72 /* OBSOLETE   stack_end = STACK_END_ADDR; */
  73 /* OBSOLETE  */
  74 /* OBSOLETE   /* Now, if a new core file was specified, open it and digest it.  *x/ */
  75 /* OBSOLETE  */
  76 /* OBSOLETE   if (filename) */
  77 /* OBSOLETE     { */
  78 /* OBSOLETE       filename = tilde_expand (filename); */
  79 /* OBSOLETE       make_cleanup (xfree, filename); */
  80 /* OBSOLETE        */
  81 /* OBSOLETE       if (have_inferior_p ()) */
  82 /* OBSOLETE     error ("To look at a core file, you must kill the program with \"kill\"."); */
  83 /* OBSOLETE       corechan = open (filename, O_RDONLY, 0); */
  84 /* OBSOLETE       if (corechan < 0) */
  85 /* OBSOLETE     perror_with_name (filename); */
  86 /* OBSOLETE       /* 4.2-style (and perhaps also sysV-style) core dump file.  *x/ */
  87 /* OBSOLETE       { */
  88 /* OBSOLETE     struct user u; */
  89 /* OBSOLETE  */
  90 /* OBSOLETE     unsigned int reg_offset; */
  91 /* OBSOLETE  */
  92 /* OBSOLETE     val = myread (corechan, &u, sizeof u); */
  93 /* OBSOLETE     if (val < 0) */
  94 /* OBSOLETE       perror_with_name ("Not a core file: reading upage"); */
  95 /* OBSOLETE     if (val != sizeof u) */
  96 /* OBSOLETE       error ("Not a core file: could only read %d bytes", val); */
  97 /* OBSOLETE     data_start = exec_data_start; */
  98 /* OBSOLETE  */
  99 /* OBSOLETE #if !defined (NBPG) */
 100 /* OBSOLETE #define NBPG NBPP */
 101 /* OBSOLETE #endif */
 102 /* OBSOLETE #if !defined (UPAGES) */
 103 /* OBSOLETE #define UPAGES USIZE */
 104 /* OBSOLETE #endif */
 105 /* OBSOLETE  */
 106 /* OBSOLETE     data_end = data_start + NBPG * u.u_dsize; */
 107 /* OBSOLETE     stack_start = stack_end - NBPG * u.u_ssize; */
 108 /* OBSOLETE     data_offset = NBPG * UPAGES + exec_data_start % NBPG /* Not sure about this //jkp *x/; */
 109 /* OBSOLETE     stack_offset = NBPG * (UPAGES + u.u_dsize); */
 110 /* OBSOLETE  */
 111 /* OBSOLETE     /* Some machines put an absolute address in here and some put */
 112 /* OBSOLETE        the offset in the upage of the regs.  *x/ */
 113 /* OBSOLETE     reg_offset = (int) u.u_state; */
 114 /* OBSOLETE     if (reg_offset > NBPG * UPAGES) */
 115 /* OBSOLETE       reg_offset -= KERNEL_U_ADDR; */
 116 /* OBSOLETE  */
 117 /* OBSOLETE     memcpy (&core_aouthdr, &u.u_exdata, sizeof (AOUTHDR)); */
 118 /* OBSOLETE     printf_unfiltered ("Core file is from \"%s\".\n", u.u_comm); */
 119 /* OBSOLETE  */
 120 /* OBSOLETE     /* I don't know where to find this info. */
 121 /* OBSOLETE        So, for now, mark it as not available.  *x/ */
 122 /* OBSOLETE     N_SET_MAGIC (core_aouthdr, 0); */
 123 /* OBSOLETE  */
 124 /* OBSOLETE     /* Read the register values out of the core file and store */
 125 /* OBSOLETE        them where `read_register' will find them.  *x/ */
 126 /* OBSOLETE  */
 127 /* OBSOLETE     { */
 128 /* OBSOLETE       register int regno; */
 129 /* OBSOLETE  */
 130 /* OBSOLETE       for (regno = 0; regno < NUM_REGS; regno++) */
 131 /* OBSOLETE         { */
 132 /* OBSOLETE           char buf[MAX_REGISTER_RAW_SIZE]; */
 133 /* OBSOLETE  */
 134 /* OBSOLETE           val = lseek (corechan, register_addr (regno, reg_offset), 0); */
 135 /* OBSOLETE           if (val < 0 */
 136 /* OBSOLETE               || (val = myread (corechan, buf, sizeof buf)) < 0) */
 137 /* OBSOLETE             { */
 138 /* OBSOLETE               char * buffer = (char *) alloca (strlen (REGISTER_NAME (regno)) */
 139 /* OBSOLETE                                                + 30); */
 140 /* OBSOLETE               strcpy (buffer, "Reading register "); */
 141 /* OBSOLETE               strcat (buffer, REGISTER_NAME (regno)); */
 142 /* OBSOLETE                                                 */
 143 /* OBSOLETE               perror_with_name (buffer); */
 144 /* OBSOLETE             } */
 145 /* OBSOLETE  */
 146 /* OBSOLETE           supply_register (regno, buf); */
 147 /* OBSOLETE         } */
 148 /* OBSOLETE     } */
 149 /* OBSOLETE       } */
 150 /* OBSOLETE       if (filename[0] == '/') */
 151 /* OBSOLETE     corefile = savestring (filename, strlen (filename)); */
 152 /* OBSOLETE       else */
 153 /* OBSOLETE     { */
 154 /* OBSOLETE       corefile = concat (current_directory, "/", filename, NULL); */
 155 /* OBSOLETE     } */
 156 /* OBSOLETE  */
 157 /* OBSOLETE       flush_cached_frames (); */
 158 /* OBSOLETE       select_frame (get_current_frame (), 0); */
 159 /* OBSOLETE       validate_files (); */
 160 /* OBSOLETE     } */
 161 /* OBSOLETE   else if (from_tty) */
 162 /* OBSOLETE     printf_unfiltered ("No core file now.\n"); */
 163 /* OBSOLETE } */