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
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
|
# Copyright 1997-2019 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/>.
#
# This file was written by Michael Snyder (msnyder@cygnus.com)
#
# test running programs
#
set data_overlays 1
if [istarget "m32r-*-*"] then {
set linker_script "${srcdir}/${subdir}/m32r.ld"
} elseif [istarget "spu-*-*"] then {
set linker_script "${srcdir}/${subdir}/spu.ld"
set data_overlays 0
} else {
verbose "Skipping overlay test -- not implemented for this target."
return
}
if [istarget "*-*-linux*"] then {
verbose "Skipping overlay test -- Linux doesn't support overlayed programs."
return
}
standard_testfile overlays.c ovlymgr.c foo.c bar.c baz.c grbx.c
if {[build_executable $testfile.exp $testfile \
[list $srcfile $srcfile2 $srcfile3 $srcfile4 $srcfile5 $srcfile6] \
{debug ldscript=-Wl,-T$linker_script}] == -1} {
untested "failed to compile"
return -1
}
remote_exec build "mv ${testfile}.o foo.o bar.o baz.o grbx.o ovlymgr.o ${objdir}/${subdir}"
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}
#
# set it up at a breakpoint so we can play with the variable values
#
if ![runto_main] then {
fail "can't run to main"
return 0
}
# couple of convenience variables
set fptrcast [string_to_regexp "{int (int)}"]
set iptrcast [string_to_regexp "(int *)"]
set hexx "0x\[0-9abcdefABCDEF\]+"
gdb_test_no_output "overlay manual"
gdb_test "overlay list" "No sections are mapped." "list with none mapped"
# capture the LMA addresses of [foo bar baz grbx foox barx bazx grbxx]
proc get_func_address { func func_sym msg } {
global gdb_prompt
global fptrcast
global hexx
set func_addr 0
send_gdb "print $func\n"
gdb_expect {
-re "\\$\[0-9\]+ = $fptrcast (${hexx}) <$func_sym>.*$gdb_prompt $" {
set func_addr $expect_out(1,string)
pass "get $msg"
}
-re ".*$gdb_prompt $" {
fail "get $msg"
}
default {
fail "get $msg (timeout)"
}
}
return $func_addr
}
set foo_lma [get_func_address "foo" "\\*foo\\*" "foo load address"]
set bar_lma [get_func_address "bar" "\\*bar\\*" "bar load address"]
set baz_lma [get_func_address "baz" "\\*baz\\*" "baz load address"]
set grbx_lma [get_func_address "grbx" "\\*grbx\\*" "grbx load address"]
if $data_overlays then {
gdb_test "print \$foox_lma = &foox" \
".* $iptrcast 0x.*" "foox load addr"
gdb_test "print \$barx_lma = &barx" \
".* $iptrcast 0x.*" "barx load addr"
gdb_test "print \$bazx_lma = &bazx" \
".* $iptrcast 0x.*" "bazx load addr"
gdb_test "print \$grbxx_lma = &grbxx" \
".* $iptrcast 0x.*" "grbxx load addr"
}
# map each overlay successively, and
# capture the VMA addresses of [foo bar baz grbx foox barx bazx grbxx]
gdb_test "overlay map .ovly0" ""
gdb_test "overlay list" "Section .ovly0, loaded at.*, mapped at.*" "list ovly0"
set foo_vma [get_func_address "foo" "foo" "foo runtime address"]
gdb_test "overlay map .ovly1" ""
gdb_test "overlay list" "Section .ovly1, loaded at.*, mapped at.*" "list ovly1"
set bar_vma [get_func_address "bar" "bar" "bar runtime address"]
gdb_test "overlay map .ovly2" ""
gdb_test "overlay list" "Section .ovly2, loaded at.*, mapped at.*" "list ovly2"
set baz_vma [get_func_address "baz" "baz" "baz runtime address"]
gdb_test "overlay map .ovly3" ""
gdb_test "overlay list" "Section .ovly3, loaded at.*, mapped at.*" "list ovly3"
set grbx_vma [get_func_address "grbx" "grbx" "grbx runtime address"]
if $data_overlays then {
gdb_test "overlay map .data00" ""
gdb_test "overlay list" "Section .data00, loaded .*, mapped .*" "list data00"
gdb_test "print \$foox_vma = &foox" \
".* $iptrcast 0x.*" "foox runtime addr"
gdb_test "overlay map .data01" ""
gdb_test "overlay list" "Section .data01, loaded .*, mapped .*" "list data01"
gdb_test "print \$barx_vma = &barx" \
".* $iptrcast 0x.*" "barx runtime addr"
gdb_test "overlay map .data02" ""
gdb_test "overlay list" "Section .data02, loaded .*, mapped .*" "list data02"
gdb_test "print \$bazx_vma = &bazx" \
".* $iptrcast 0x.*" "bazx runtime addr"
gdb_test "overlay map .data03" ""
gdb_test "overlay list" "Section .data03, loaded .*, mapped .*" "list data03"
gdb_test "print \$grbxx_vma = &grbxx" \
".* $iptrcast 0x.*" "grbxx runtime addr"
}
# Verify that LMA != VMA
gdb_test "print $foo_lma != $foo_vma" ".* = 1" "foo's LMA != VMA"
gdb_test "print $bar_lma != $bar_vma" ".* = 1" "bar's LMA != VMA"
gdb_test "print $baz_lma != $baz_vma" ".* = 1" "baz's LMA != VMA"
gdb_test "print $grbx_lma != $grbx_vma" ".* = 1" "grbx's LMA != VMA"
if $data_overlays then {
gdb_test "print \$foox_lma != \$foox_vma" ".* = 1" "foox's LMA != VMA"
gdb_test "print \$barx_lma != \$barx_vma" ".* = 1" "barx's LMA != VMA"
gdb_test "print \$bazx_lma != \$bazx_vma" ".* = 1" "bazx's LMA != VMA"
gdb_test "print \$grbxx_lma != \$grbxx_vma" ".* = 1" "grbxx's LMA != VMA"
}
# Verify that early-mapped overlays have been bumped out
# by later-mapped overlays layed over in the same VMA range.
send_gdb "overlay list\n"
gdb_expect {
-re ".*ovly0, " { fail ".ovly0 not unmapped by .ovly1" }
-re ".*ovly2, " { fail ".ovly2 not unmapped by .ovly3" }
-re ".*data00," { fail ".data00 not unmapped by .data01" }
-re ".*data02," { fail ".data02 not unmapped by .data03" }
-re ".*$gdb_prompt $" { pass "automatic unmapping" }
timeout { fail "(timeout) Automatic unmapping" }
}
# Verify that both sec1 and sec2 can be loaded simultaneously.
proc simultaneous_pair { sec1 sec2 } {
global gdb_prompt
set pairname "$sec1 and $sec2 mapped simultaneously"
gdb_test "overlay map $sec1" "" "$pairname: map $sec1"
gdb_test "overlay map $sec2" "" "$pairname: map $sec2"
set seen_sec1 0
set seen_sec2 0
send_gdb "overlay list\n"
gdb_expect {
-re ".*[string_to_regexp $sec1], " { set seen_sec1 1; exp_continue }
-re ".*[string_to_regexp $sec2], " { set seen_sec2 1; exp_continue }
-re ".*$gdb_prompt $" {
if {$seen_sec1 && $seen_sec2} {
pass "$pairname"
} else {
fail "$pairname"
}
}
timeout { fail "(timeout) $pairname" }
}
}
simultaneous_pair .ovly0 .ovly2
simultaneous_pair .ovly0 .ovly3
simultaneous_pair .ovly1 .ovly2
simultaneous_pair .ovly1 .ovly3
if $data_overlays then {
simultaneous_pair .data00 .data02
simultaneous_pair .data00 .data03
simultaneous_pair .data01 .data02
simultaneous_pair .data01 .data03
}
# test automatic mode
gdb_test_no_output "overlay auto"
gdb_test "overlay list" "No sections are mapped." "list none mapped (auto)"
gdb_test "break foo" "Breakpoint .*at .*file .*foo.c.*" "break foo"
gdb_test "break bar" "Breakpoint .*at .*file .*bar.c.*" "break bar"
gdb_test "break baz" "Breakpoint .*at .*file .*baz.c.*" "break baz"
gdb_test "break grbx" "Breakpoint .*at .*file .*grbx.c.*" "break grbx"
send_gdb "continue\n"
gdb_expect {
-re "Breakpoint .* foo .x=1. at .*$gdb_prompt $" { pass "hit foo" }
-re ".*$gdb_prompt $" { fail "hit foo" }
timeout { fail "(timeout) hit foo" }
}
send_gdb "backtrace\n"
gdb_expect {
-re "#0 .*foo .*#1 .*main .*$gdb_prompt $" { pass "BT foo" }
-re ".*$gdb_prompt $" { fail "BT foo" }
timeout { fail "(timeout) BT foo" }
}
send_gdb "continue\n"
gdb_expect {
-re "Breakpoint .* bar .x=1. at .*$gdb_prompt $" { pass "hit bar" }
-re ".*$gdb_prompt $" { fail "hit bar" }
timeout { fail "(timeout) hit bar" }
}
send_gdb "backtrace\n"
gdb_expect {
-re "#0 .*bar .*#1 .*main .*$gdb_prompt $" { pass "BT bar" }
-re ".*$gdb_prompt $" { fail "BT bar" }
timeout { fail "(timeout) BT bar" }
}
send_gdb "continue\n"
gdb_expect {
-re "Breakpoint .* baz .x=1. at .*$gdb_prompt $" { pass "hit baz" }
-re ".*$gdb_prompt $" { fail "hit baz" }
timeout { fail "(timeout) hit baz" }
}
send_gdb "backtrace\n"
gdb_expect {
-re "#0 .*baz .*#1 .*main .*$gdb_prompt $" { pass "BT baz" }
-re ".*$gdb_prompt $" { fail "BT baz" }
timeout { fail "(timeout) BT baz" }
}
send_gdb "continue\n"
gdb_expect {
-re "Breakpoint .* grbx .x=1. at .*$gdb_prompt $" { pass "hit grbx" }
-re ".*$gdb_prompt $" { fail "hit grbx" }
timeout { fail "(timeout) hit grbx" }
}
send_gdb "backtrace\n"
gdb_expect {
-re "#0 .*grbx .*#1 .*main .*$gdb_prompt $" { pass "BT grbx" }
-re ".*$gdb_prompt $" { fail "BT grbx" }
timeout { fail "(timeout) BT grbx" }
}
|
