1 /* Core dump and executable file functions above target vector, for GDB.
2 Copyright 1986, 1987, 1989, 1991, 1992 Free Software Foundation, Inc.
4 This file is part of GDB.
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.
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.
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
24 #include "frame.h" /* required by inferior.h */
32 extern char registers
[];
34 /* Hook for `exec_file_command' command to call. */
36 void (*exec_file_display_hook
) PARAMS ((char *)) = NULL
;
38 /* Binary file diddling handle for the core file. */
43 /* Backward compatability with old way of specifying core files. */
46 core_file_command (filename
, from_tty
)
50 dont_repeat (); /* Either way, seems bogus. */
53 core_detach (filename
, from_tty
);
55 core_open (filename
, from_tty
);
59 /* Call this to specify the hook for exec_file_command to call back.
60 This is called from the x-window display code. */
63 specify_exec_file_hook (hook
)
64 void (*hook
) PARAMS ((char *));
66 exec_file_display_hook
= hook
;
69 /* The exec file must be closed before running an inferior.
70 If it is needed again after the inferior dies, it must
78 bfd_tempclose (exec_bfd
);
87 bfd_reopen (exec_bfd
);
91 /* If we have both a core file and an exec file,
92 print a warning if they don't go together. */
97 if (exec_bfd
&& core_bfd
)
99 if (!core_file_matches_executable_p (core_bfd
, exec_bfd
))
100 warning ("core file may not match specified executable file.");
101 else if (bfd_get_mtime(exec_bfd
) > bfd_get_mtime(core_bfd
))
102 warning ("exec file is newer than core file.");
106 /* Return the name of the executable file as a string.
107 ERR nonzero means get error if there is none specified;
108 otherwise return 0 in that case. */
114 if (exec_bfd
) return bfd_get_filename(exec_bfd
);
115 if (!err
) return NULL
;
117 error ("No executable file specified.\n\
118 Use the \"file\" or \"exec-file\" command.");
123 /* Report a memory error with error(). */
126 memory_error (status
, memaddr
)
133 /* Actually, address between memaddr and memaddr + len
134 was out of bounds. */
135 error ("Cannot access memory at address %s.", local_hex_string(memaddr
));
139 error ("Error accessing memory address %s: %s.",
140 local_hex_string (memaddr
), safe_strerror (status
));
144 /* Same as target_read_memory, but report an error if can't read. */
146 read_memory (memaddr
, myaddr
, len
)
152 status
= target_read_memory (memaddr
, myaddr
, len
);
154 memory_error (status
, memaddr
);
157 /* Same as target_write_memory, but report an error if can't write. */
159 write_memory (memaddr
, myaddr
, len
)
166 status
= target_write_memory (memaddr
, myaddr
, len
);
168 memory_error (status
, memaddr
);
171 /* Read an integer from debugged memory, given address and number of bytes. */
174 read_memory_integer (memaddr
, len
)
183 if (len
== sizeof (char))
185 read_memory (memaddr
, &cbuf
, len
);
188 if (len
== sizeof (short))
190 read_memory (memaddr
, (char *)&sbuf
, len
);
191 SWAP_TARGET_AND_HOST (&sbuf
, sizeof (short));
194 if (len
== sizeof (int))
196 read_memory (memaddr
, (char *)&ibuf
, len
);
197 SWAP_TARGET_AND_HOST (&ibuf
, sizeof (int));
200 if (len
== sizeof (lbuf
))
202 read_memory (memaddr
, (char *)&lbuf
, len
);
203 SWAP_TARGET_AND_HOST (&lbuf
, sizeof (lbuf
));
206 error ("Cannot handle integers of %d bytes.", len
);
207 return -1; /* for lint */
214 add_com ("core-file", class_files
, core_file_command
,
215 "Use FILE as core dump for examining memory and registers.\n\
216 No arg means have no core file. This command has been superseded by the\n\
217 `target core' and `detach' commands.");
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