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6aba47ca | 1 | # Copyright 2000, 2002, 2003, 2004, 2005, 2006, 2007 |
2f83a18e | 2 | # Free Software Foundation, Inc. |
6f8eac0e DJ |
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 is based on config/gdbserver.exp, which was written by | |
19 | # Michael Snyder (msnyder@redhat.com). | |
20 | ||
21 | # | |
22 | # To be addressed or set in your baseboard config file: | |
23 | # | |
24 | # set_board_info gdb_protocol "remote" | |
25 | # Unles you have a gdbserver that uses a different protocol... | |
26 | # | |
27 | # set_board_info gdb_server_prog | |
28 | # This will be the path to the gdbserver program you want to test. | |
29 | # Defaults to "gdbserver". | |
30 | # | |
31 | # set_board_info sockethost | |
32 | # The name of the host computer whose socket is being used. | |
33 | # Defaults to "localhost". Note: old gdbserver requires | |
34 | # that you define this, but libremote/gdbserver does not. | |
35 | # | |
36 | # set_board_info gdb,socketport | |
37 | # Port id to use for socket connection. If not set explicitly, | |
38 | # it will start at "2345" and increment for each use. | |
39 | # | |
40 | ||
41 | # | |
42 | # gdb_target_cmd | |
43 | # Send gdb the "target" command | |
44 | # | |
45 | proc gdb_target_cmd { targetname serialport } { | |
46 | global gdb_prompt | |
47 | ||
ef783a7d | 48 | set serialport_re [string_to_regexp $serialport] |
6f8eac0e DJ |
49 | for {set i 1} {$i <= 3} {incr i} { |
50 | send_gdb "target $targetname $serialport\n" | |
51 | gdb_expect 60 { | |
52 | -re "A program is being debugged already.*ill it.*y or n. $" { | |
53 | send_gdb "y\n" | |
54 | exp_continue | |
55 | } | |
2f83a18e | 56 | -re "Couldn't establish connection to remote.*$gdb_prompt $" { |
6f8eac0e DJ |
57 | verbose "Connection failed" |
58 | } | |
59 | -re "Remote MIPS debugging.*$gdb_prompt" { | |
60 | verbose "Set target to $targetname" | |
61 | return 0 | |
62 | } | |
ef783a7d | 63 | -re "Remote debugging using .*$serialport_re.*$gdb_prompt $" { |
6f8eac0e DJ |
64 | verbose "Set target to $targetname" |
65 | return 0 | |
66 | } | |
2f83a18e | 67 | -re "Remote target $targetname connected to.*$gdb_prompt $" { |
6f8eac0e DJ |
68 | verbose "Set target to $targetname" |
69 | return 0 | |
70 | } | |
2f83a18e | 71 | -re "Connected to.*$gdb_prompt $" { |
6f8eac0e DJ |
72 | verbose "Set target to $targetname" |
73 | return 0 | |
74 | } | |
2f83a18e DJ |
75 | -re "Ending remote.*$gdb_prompt $" { } |
76 | -re "Connection refused.*$gdb_prompt $" { | |
6f8eac0e DJ |
77 | verbose "Connection refused by remote target. Pausing, and trying again." |
78 | sleep 30 | |
79 | continue | |
80 | } | |
2f83a18e | 81 | -re "Timeout reading from remote system.*$gdb_prompt $" { |
6f8eac0e DJ |
82 | verbose "Got timeout error from gdb." |
83 | } | |
b741e217 DJ |
84 | -notransfer -re "Remote debugging using .*\r\n> $" { |
85 | # We got an unexpected prompt while creating the target. | |
86 | # Leave it there for the test to diagnose. | |
87 | return 1 | |
88 | } | |
6f8eac0e DJ |
89 | timeout { |
90 | send_gdb "\ 3" | |
91 | break | |
92 | } | |
93 | } | |
94 | } | |
95 | return 1 | |
96 | } | |
97 | ||
98 | ||
99 | global portnum | |
100 | set portnum "2345" | |
101 | ||
102 | # Locate the gdbserver binary. Returns "" if gdbserver could not be found. | |
103 | ||
104 | proc find_gdbserver { } { | |
105 | global GDB | |
106 | ||
107 | if [target_info exists gdb_server_prog] { | |
108 | return [target_info gdb_server_prog] | |
109 | } | |
110 | ||
111 | set gdbserver "${GDB}server" | |
112 | if { [file isdirectory $gdbserver] } { | |
113 | append gdbserver "/gdbserver" | |
114 | } | |
115 | ||
116 | if { [file executable $gdbserver] } { | |
117 | return $gdbserver | |
118 | } | |
119 | ||
120 | return "" | |
121 | } | |
122 | ||
123 | # Return non-zero if we should skip gdbserver-specific tests. | |
124 | ||
125 | proc skip_gdbserver_tests { } { | |
126 | if { [find_gdbserver] == "" } { | |
127 | return 1 | |
128 | } | |
129 | ||
130 | return 0 | |
131 | } | |
132 | ||
133 | # Start a gdbserver process running SERVER_EXEC, and connect GDB | |
134 | # to it. CHILD_ARGS are passed to the inferior. | |
135 | # | |
136 | # Returns the target protocol and socket to connect to. | |
137 | ||
b741e217 | 138 | proc gdbserver_spawn { child_args } { |
6f8eac0e | 139 | global portnum |
b741e217 DJ |
140 | global gdbserver_host_exec |
141 | global gdbserver_host_mtime | |
142 | global gdbserver_server_exec | |
143 | global last_loaded_file | |
144 | ||
145 | set host_exec $last_loaded_file | |
146 | ||
147 | # If we already downloaded a file to the target, see if we can reuse it. | |
148 | set reuse 0 | |
149 | if { [info exists gdbserver_server_exec] } { | |
150 | set reuse 1 | |
151 | ||
152 | # If the file has changed, we can not. | |
153 | if { $host_exec != $gdbserver_host_exec } { | |
154 | set reuse 0 | |
155 | } | |
156 | ||
157 | # If the mtime has changed, we can not. | |
158 | if { [file mtime $host_exec] != $gdbserver_host_mtime } { | |
159 | set reuse 0 | |
160 | } | |
161 | } | |
162 | ||
163 | if { $reuse == 0 } { | |
164 | set gdbserver_host_exec $host_exec | |
165 | set gdbserver_host_mtime [file mtime $host_exec] | |
166 | if [is_remote target] { | |
93f02886 | 167 | set gdbserver_server_exec [gdb_download $host_exec] |
b741e217 DJ |
168 | } else { |
169 | set gdbserver_server_exec $host_exec | |
170 | } | |
171 | } | |
6f8eac0e DJ |
172 | |
173 | # Port id -- either specified in baseboard file, or managed here. | |
174 | if [target_info exists gdb,socketport] { | |
175 | set portnum [target_info gdb,socketport] | |
176 | } else { | |
177 | # Bump the port number to avoid conflicts with hung ports. | |
178 | incr portnum | |
179 | } | |
180 | ||
181 | # Extract the local and remote host ids from the target board struct. | |
182 | if [target_info exists sockethost] { | |
183 | set debughost [target_info sockethost] | |
184 | } else { | |
185 | set debughost "localhost:" | |
186 | } | |
187 | ||
188 | # Extract the protocol | |
189 | if [target_info exists gdb_protocol] { | |
190 | set protocol [target_info gdb_protocol] | |
191 | } else { | |
192 | set protocol "remote" | |
193 | } | |
194 | ||
195 | set gdbserver [find_gdbserver] | |
196 | ||
197 | # Export the host:port pair. | |
198 | set gdbport $debughost$portnum | |
199 | ||
200 | # Fire off the debug agent. This flavour of gdbserver takes as | |
201 | # arguments the port information, the name of the executable file to | |
202 | # be debugged, and any arguments. | |
b741e217 | 203 | set gdbserver_command "$gdbserver :$portnum $gdbserver_server_exec" |
6f8eac0e DJ |
204 | if { $child_args != "" } { |
205 | append gdbserver_command " $child_args" | |
206 | } | |
207 | ||
208 | set server_spawn_id [remote_spawn target $gdbserver_command] | |
209 | ||
210 | # Wait for the server to produce at least one line and an additional | |
211 | # character of output. This will wait until any TCP socket has been | |
212 | # created, so that GDB can connect. | |
213 | expect { | |
214 | -i $server_spawn_id | |
215 | -notransfer | |
216 | -re ".*\n." { } | |
217 | } | |
218 | ||
219 | # We can't just call close, because if gdbserver is local then that means | |
220 | # that it will get a SIGHUP. Doing it this way could also allow us to | |
221 | # get at the inferior's input or output if necessary, and means that we | |
222 | # don't need to redirect output. | |
223 | expect_background { | |
224 | -i $server_spawn_id | |
2226f861 | 225 | full_buffer { } |
6f8eac0e DJ |
226 | eof { |
227 | # The spawn ID is already closed now (but not yet waited for). | |
228 | wait -i $expect_out(spawn_id) | |
229 | } | |
230 | } | |
231 | ||
232 | return [list $protocol $gdbport] | |
233 | } | |
234 | ||
6f8eac0e DJ |
235 | # Start a gdbserver process running HOST_EXEC and pass CHILD_ARGS |
236 | # to it. Return 0 on success, or non-zero on failure. | |
237 | ||
b741e217 | 238 | proc gdbserver_run { child_args } { |
2226f861 DJ |
239 | # Kill anything running before we try to start gdbserver, in case |
240 | # we are sharing a serial connection. | |
241 | global gdb_prompt | |
242 | send_gdb "kill\n" | |
243 | gdb_expect 120 { | |
244 | -re "Kill the program being debugged. .y or n. $" { | |
245 | send_gdb "y\n" | |
246 | verbose "\t\tKilling previous program being debugged" | |
247 | exp_continue | |
248 | } | |
249 | -re "$gdb_prompt $" { | |
250 | # OK. | |
251 | } | |
252 | } | |
253 | ||
b741e217 | 254 | set res [gdbserver_spawn $child_args] |
6f8eac0e DJ |
255 | set protocol [lindex $res 0] |
256 | set gdbport [lindex $res 1] | |
257 | ||
b741e217 | 258 | return [gdb_target_cmd $protocol $gdbport] |
6f8eac0e | 259 | } |