1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
|
# Test Framework Driver for GDB driving an external simulator
# Copyright 1999-2015 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
load_lib gdb.exp
proc sid_start {} {
global verbose
set port [lindex [split [target_info netport] ":"] 1]
# Set a default endianness
case [target_info multilib_flags] in {
{ *big-endian* *-EB* *-meb* } { set sidendian "-EB" }
{ *little-endian* *-EL* *-mel* } { set sidendian "-EL" }
default {
if {[target_info exists sim,defaultendian]} then {
set sidendian [target_info sim,defaultendian]
} else {
# rely on endianness settings in sid configuration defaults
set sidendian ""
}
}
}
case $sidendian in {
{ -EB } { set sidendian2 {-e "set cpu endian big"} }
{ -EL } { set sidendian2 {-e "set cpu endian little"} }
default { set sidendian2 {} }
}
# test to see whether to use use sid in build or install tree
set use_build_tree [file exists ../../sid]
if {$use_build_tree} then {
set pre_spawn {
global env
set env(SID_LIBRARY_PATH) [join [glob "../../sid/component/*"] ":"]
set env(SID) "../../sid/main/dynamic/sid"
if {! [file exists $env(SID)]} then { error "Cannot find sid in build tree" }
}
if { [board_info target sim,protocol] == "sid" } {
set spawncmd "[target_info sim] [target_info sim,options] $sidendian2 -e \"set cpu-gdb-socket sockaddr-local 0.0.0.0:$port\""
} elseif { [board_info target sim,protocol] == "rawsid" } {
set spawncmd "[target_info sim] [target_info sim,options] -$sidendian --gdb=$port"
} else {
set spawncmd "../../sid/bsp/[target_info sim] $sidendian --gdb=$port [target_info sim,options]"
}
set post_spawn {
global env
unset env(SID_LIBRARY_PATH)
unset env(SID)
}
} else {
set pre_spawn {}
if { [board_info target sim,protocol] == "sid" } {
# FIXME: sim,options may be from the build tree, should find
# it in the install tree.
set spawncmd "sid [target_info sim,options] $sidendian2 -e \"set cpu-gdb-socket sockaddr-local 0.0.0.0:$port\""
} elseif { [board_info target sim,protocol] == "rawsid" } {
set spawncmd "[target_info sim] [target_info sim,options] -$sidendian --gdb=$port"
} else {
set spawncmd "[target_info sim] $sidendian --gdb=$port [target_info sim,options]"
}
set post_spawn {}
}
eval $pre_spawn
if {[catch [list remote_spawn host $spawncmd] msg]} {
perror $msg
exit 1
}
eval $post_spawn
# Don't do the following any more; it breaks with "runtest ... < /dev/null"
# expect_background {
# -re \[^\n\]*\n {
# regsub "\n" $expect_out(buffer) {} msg
# verbose "SID: $msg" 2
# }
# }
# There should be no need to sleep to give SID time to start;
# GDB would wait for a fair while for the stub to respond.
sleep 4
if ![target_info exists gdb,no_push_conn] {
remote_push_conn host
}
}
#
# Handle GDB talking to SID
#
proc gdb_start {} {
sid_start
return [default_gdb_start]
}
proc sid_exit {} {
if ![target_info exists gdb,no_push_conn] {
remote_close host
remote_pop_conn host
}
}
proc gdb_exit {} {
set result [default_gdb_exit]
sid_exit
return $result
}
#
# gdb_target_sid
# Set gdb to target the simulator
#
proc send_target_sid { } {
# wait a little while, giving sid time to shut down & restart its
# gdb socket
sleep 4
send_gdb "target [target_info gdb_protocol] [target_info netport]\n"
}
proc gdb_target_sid { } {
global gdb_prompt
global exit_status
send_target_sid
global timeout
set prev_timeout $timeout
set timeout 60
verbose "Timeout is now $timeout seconds" 2
gdb_expect {
-re ".*\[Ee\]rror.*$gdb_prompt $" {
perror "Couldn't set target for remote simulator."
cleanup
gdb_exit
}
-re "Remote debugging using.*$gdb_prompt" {
verbose "Set target to sid"
}
timeout {
perror "Couldn't set target for remote simulator."
cleanup
gdb_exit
}
}
set timeout $prev_timeout
verbose "Timeout is now $timeout seconds" 2
}
#
# gdb_load -- load a file into the debugger.
# return a -1 if anything goes wrong.
#
proc gdb_load { arg } {
global verbose
global loadpath
global loadfile
global GDB
global gdb_prompt
global retval
if { $arg != "" } {
if [gdb_file_cmd $arg] then { return -1 }
}
gdb_target_sid
send_gdb "load\n"
global timeout
set prev_timeout $timeout
set timeout 2400
verbose "Timeout is now $timeout seconds" 2
gdb_expect {
-re ".*\[Ee\]rror.*$gdb_prompt $" {
if $verbose>1 then {
perror "Error during download."
}
set retval -1
}
-re ".*$gdb_prompt $" {
if $verbose>1 then {
send_user "Loaded $arg into $GDB\n"
}
set retval 0
}
-re "$gdb_prompt $" {
if $verbose>1 then {
perror "GDB couldn't load."
}
set retval -1
}
timeout {
if $verbose>1 then {
perror "Timed out trying to load $arg."
}
set retval -1
}
}
set timeout $prev_timeout
verbose "Timeout is now $timeout seconds" 2
return $retval
}
|
