| 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 } */ |