1# Copyright 2002, 2003, 2004
2# Free Software Foundation, Inc.
3
4# This program is free software; you can redistribute it and/or modify
5# it under the terms of the GNU General Public License as published by
6# the Free Software Foundation; either version 2 of the License, or
7# (at your option) any later version.
8#
9# This program is distributed in the hope that it will be useful,
10# but WITHOUT ANY WARRANTY; without even the implied warranty of
11# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12# GNU General Public License for more details.
13#
14# You should have received a copy of the GNU General Public License
15# along with this program; if not, write to the Free Software
16# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17
18# This file was written by Joel Brobecker. (brobecker@gnat.com), derived
19# from selftest.exp, written by Rob Savoye.
20
21if $tracelevel then {
22    strace $tracelevel
23}
24
25set prms_id 0
26set bug_id 0
27
28# are we on a target board
29if [is_remote target] {
30    return
31}
32
33proc setup_test { executable } {
34    global gdb_prompt
35    global timeout
36
37    # load yourself into the debugger
38    # This can take a relatively long time, particularly for testing where
39    # the executable is being accessed over a network, or where gdb does not
40    # support partial symbols for a particular target and has to load the
41    # entire symbol table.  Set the timeout to 10 minutes, which should be
42    # adequate for most environments (it *has* timed out with 5 min on a
43    # SPARCstation SLC under moderate load, so this isn't unreasonable).
44    # After gdb is started, set the timeout to 30 seconds for the duration
45    # of this test, and then back to the original value.
46
47    set oldtimeout $timeout
48    set timeout 600
49    verbose "Timeout is now $timeout seconds" 2
50
51    global gdb_file_cmd_debug_info
52    set gdb_file_cmd_debug_info "unset"
53
54    set result [gdb_load $executable]
55    set timeout $oldtimeout
56    verbose "Timeout is now $timeout seconds" 2
57
58    if { $result != 0 } then {
59	return -1
60    }
61
62    if { $gdb_file_cmd_debug_info != "debug" } then {
63	untested "No debug information, skipping testcase."
64	return -1
65    }
66
67    # Set a breakpoint at main
68    gdb_test "break captured_main" \
69            "Breakpoint.*at.* file.*, line.*" \
70            "breakpoint in captured_main"
71
72    # run yourself
73    # It may take a very long time for the inferior gdb to start (lynx),
74    # so we bump it back up for the duration of this command.
75    set timeout 600
76
77    set description "run until breakpoint at captured_main"
78    send_gdb "run -nw\n"
79    gdb_expect {
80        -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" {
81            pass "$description"
82        }
83        -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$gdb_prompt $" {
84            xfail "$description (line numbers scrambled?)"
85        }
86        -re "vfork: No more processes.*$gdb_prompt $" {
87            fail "$description (out of virtual memory)"
88            set timeout $oldtimeout
89            verbose "Timeout is now $timeout seconds" 2
90            return -1
91        }
92        -re ".*$gdb_prompt $" {
93            fail "$description"
94            set timeout $oldtimeout
95            verbose "Timeout is now $timeout seconds" 2
96            return -1
97        }
98        timeout {
99            fail "$description (timeout)"
100        }
101    }
102
103    set timeout $oldtimeout
104    verbose "Timeout is now $timeout seconds" 2
105
106    return 0
107}
108
109proc test_with_self { executable } {
110
111    set setup_result [setup_test $executable]
112    if {$setup_result <0} then {
113        return -1
114    }
115
116    # A file which contains a directory prefix
117    gdb_test "print xfullpath (\"./xfullpath.exp\")" \
118             ".\[0-9\]+ =.*\".*/xfullpath.exp\"" \
119             "A filename with ./ as the directory prefix"
120
121    # A file which contains a directory prefix
122    gdb_test "print xfullpath (\"../../defs.h\")" \
123             ".\[0-9\]+ =.*\".*/defs.h\"" \
124             "A filename with ../ in the directory prefix"
125
126    # A one-character filename
127    gdb_test "print xfullpath (\"./a\")" \
128             ".\[0-9\]+ =.*\".*/a\"" \
129             "A one-char filename in the current directory"
130
131    # A file in the root directory
132    gdb_test "print xfullpath (\"/root_file_which_should_exist\")" \
133             ".\[0-9\]+ =.*\"/root_file_which_should_exist\"" \
134             "A filename in the root directory"
135
136    # A file which does not have a directory prefix
137    gdb_test "print xfullpath (\"xfullpath.exp\")" \
138             ".\[0-9\]+ =.*\"xfullpath.exp\"" \
139             "A filename without any directory prefix"
140
141    # A one-char filename without any directory prefix
142    gdb_test "print xfullpath (\"a\")" \
143             ".\[0-9\]+ =.*\"a\"" \
144             "A one-char filename without any directory prefix"
145
146    # An empty filename
147    gdb_test "print xfullpath (\"\")" \
148             ".\[0-9\]+ =.*\"\"" \
149             "An empty filename"
150
151    return 0
152}
153
154# Find a pathname to a file that we would execute if the shell was asked
155# to run $arg using the current PATH.
156
157proc find_gdb { arg } {
158
159    # If the arg directly specifies an existing executable file, then
160    # simply use it.
161
162    if [file executable $arg] then {
163	return $arg
164    }
165
166    set result [which $arg]
167    if [string match "/" [ string range $result 0 0 ]] then {
168	return $result
169    }
170
171    # If everything fails, just return the unqualified pathname as default
172    # and hope for best.
173
174    return $arg
175}
176
177# Run the test with self.
178# Copy the file executable file in case this OS doesn't like to edit its own
179# text space.
180
181set GDB_FULLPATH [find_gdb $GDB]
182
183# Remove any old copy lying around.
184remote_file host delete x$tool
185
186gdb_start
187set file [remote_download host $GDB_FULLPATH x$tool]
188set result [test_with_self $file];
189gdb_exit;
190catch "remote_file host delete $file";
191
192if {$result <0} then {
193    warning "Couldn't test self"
194    return -1
195}
196