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085dd6e6 JM |
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" */ | |
c5aa993b | 43 | /* OBSOLETE #include <sys/user.h> /* After a.out.h *x/ */ |
085dd6e6 JM |
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) */ | |
b8c9b27d | 62 | /* OBSOLETE xfree (corefile); */ |
085dd6e6 JM |
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); */ | |
b8c9b27d | 79 | /* OBSOLETE make_cleanup (xfree, filename); */ |
085dd6e6 JM |
80 | /* OBSOLETE */ |
81 | /* OBSOLETE if (have_inferior_p ()) */ | |
c5aa993b | 82 | /* OBSOLETE error ("To look at a core file, you must kill the program with \"kill\"."); */ |
085dd6e6 JM |
83 | /* OBSOLETE corechan = open (filename, O_RDONLY, 0); */ |
84 | /* OBSOLETE if (corechan < 0) */ | |
c5aa993b | 85 | /* OBSOLETE perror_with_name (filename); */ |
085dd6e6 JM |
86 | /* OBSOLETE /* 4.2-style (and perhaps also sysV-style) core dump file. *x/ */ |
87 | /* OBSOLETE { */ | |
c5aa993b | 88 | /* OBSOLETE struct user u; */ |
085dd6e6 | 89 | /* OBSOLETE */ |
c5aa993b | 90 | /* OBSOLETE unsigned int reg_offset; */ |
085dd6e6 | 91 | /* OBSOLETE */ |
c5aa993b JM |
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; */ | |
085dd6e6 JM |
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 */ | |
c5aa993b JM |
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 } */ | |
085dd6e6 JM |
149 | /* OBSOLETE } */ |
150 | /* OBSOLETE if (filename[0] == '/') */ | |
c5aa993b | 151 | /* OBSOLETE corefile = savestring (filename, strlen (filename)); */ |
085dd6e6 | 152 | /* OBSOLETE else */ |
c5aa993b JM |
153 | /* OBSOLETE { */ |
154 | /* OBSOLETE corefile = concat (current_directory, "/", filename, NULL); */ | |
155 | /* OBSOLETE } */ | |
085dd6e6 JM |
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 } */ |