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1 # Copyright (C) 1997, 1998, 2007 Free Software Foundation, Inc.
2
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 2 of the License, or
6 # (at your option) any later version.
7 #
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
12 #
13 # You should have received a copy of the GNU General Public License
14 # along with this program; if not, write to the Free Software
15 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
16
17 # Please email any bugs, comments, and/or additions to this file to:
18 # bug-gdb@prep.ai.mit.edu
19
20 if $tracelevel then {
21 strace $tracelevel
22 }
23
24 set prms_id 0
25 set bug_id 0
26
27 if { [skip_hp_tests] } then { continue }
28
29 set testfile "so-thresh"
30 set binfile ${objdir}/${subdir}/${testfile}
31
32 if [get_compiler_info ${binfile}] {
33 return -1
34 }
35
36 # This testcase is relatively large, and therefore can take awhile to
37 # load. We'd best set the timeout to something suitable, or we may
38 # seem to fail...
39 #
40 set timeout 60
41
42 # Build procedure for this testcase:
43 # ${srcdir}/${subdir}/so-thresh.sh ${subdir}
44 # which calls,
45 # make -f ${srcdir}/${subdir}/so-thresh.mk <targets> <macros>
46 # which builds,
47 # genso-thresh (from genso-thresh.c)
48 # which generates,
49 # lib00-so-thresh.c
50 # lib01-so-thresh.c
51 # lib02-so-thresh.c
52 # so-thresh.lopt (link options file)
53 # lib0*-so-thresh.sl (from .c files above)
54 # so-thresh (from so-thresh.c)
55 # using lib0*-so-thresh.sl and so-thresh.lopt
56 #
57 # Since so-thresh.mk requires SRCDIR and OBJDIR macro definitions,
58 # and SRCDIR / OBJDIR could be in relative path format, we use
59 # so-thresh.sh script to pin down SRCDIR / OBJDIR (using $PWD/ prefix
60 # when detected relative path values for srcdir / objdir), before the
61 # 'cd $subdir' call (when this can be done in TCL here, we can call
62 # make directly instead).
63 #
64 # remote_exec build "sh -c \\\"cd ${objdir}/${subdir}\\; make -v -f ${srcdir}/${subdir}/${testfile}.mk clean require_shlibs all SRCDIR=${srcdir}/${subdir} OBJDIR=${objdir}/${subdir}\\\""
65
66 remote_exec build "${srcdir}/${subdir}/${testfile}.sh $subdir"
67
68 # Only HP-UX (and any other platforms using SOM shared libraries, I
69 # guess) interprets the auto-solib-limit variable as a threshhold,
70 # rather than a boolean that strictly enables or disables automatic
71 # loading of shlib symbol tables.
72 #
73 # On HP-UX, it is the size threshhold (in megabytes) at which to
74 # stop auto loading of symbol tables.
75 #
76 if ![istarget "hppa*-hp-hpux*"] then {
77 setup_xfail "*-*-*"
78 }
79
80 # Start with a fresh gdb
81 #
82 gdb_exit
83 gdb_start
84 gdb_reinitialize_dir $srcdir/$subdir
85 gdb_load ${binfile}
86
87 # This is a test of gdb's ability on HP-UX to stop automatically
88 # loading symbols of shared libraries, when the total size of the
89 # debugger's symbol table reaches a specified threshhold.
90 #
91
92 # On HP-UX, the help text for auto-solib-limit mentions that it
93 # serves as a threshhold.
94 #
95 send_gdb "help set auto-solib-limit\n"
96 gdb_expect {
97 -re "Set threshold .in Mb. for autoloading shared library symbols.*
98 When shared library autoloading is enabled, new libraries will be loaded.*
99 only until the total size of shared library symbols exceeds this.*
100 threshold in megabytes. Is ignored when using .sharedlibrary.*$gdb_prompt $"\
101 {pass "help set auto-solib-limit"}
102 -re "$gdb_prompt $"\
103 {fail "help set auto-solib-limit"}
104 timeout {fail "(timeout) help set auto-solib-limit"}
105 }
106
107 # On HP-UX, the threshhold is by default set to 50, which means
108 # 50 megabytes.
109 #
110 send_gdb "show auto-solib-limit\n"
111 gdb_expect {
112 -re "Threshold .in Mb. for autoloading shared library symbols is $decimal.*$gdb_prompt $"\
113 {pass "show auto-solib-limit "}
114 -re "$gdb_prompt $"\
115 {fail "show auto-solib-limit "}
116 timeout {fail "(timeout) show auto-solib-limit "}
117 }
118
119 send_gdb "set auto-solib-limit 1\n"
120 gdb_expect {
121 -re ".*$gdb_prompt $"
122 {pass "set auto-solib-limit to 1"}
123 -re ".*$gdb_prompt $"
124 {fail "set auto-solib-limit to 1"}
125 timeout {fail "(timeout) set auto-solib-limit to 1"}
126 }
127
128
129 # We have manually verified that our testcase exceeds 1 Mbytes
130 # of heap space in GDB to hold the symbols for the main program
131 # and all associated linked-against libraries. Thus, when we
132 # run to the program's main, and therefore notice all the linked-
133 # against shlibs, we expect to hit the threshhold.
134 #
135 # (Note that we're not using the expect [runto main] function here,
136 # 'cause we want to match on output from the run command.
137 #
138 send_gdb "break main\n"
139 gdb_expect {
140 -re "Breakpoint \[0-9\]* at.*$gdb_prompt $"\
141 {pass "1 set break at main"}
142 -re "$gdb_prompt $"\
143 {fail "1 set break at main"}
144 timeout {fail "(timeout) 1 set break at main"}
145 }
146
147 send_gdb "run\n"
148 gdb_expect {
149 -re ".*warning. Symbols for some libraries have not been loaded, because.*
150 doing so would exceed the size threshold specified by auto-solib-limit.*
151 To manually load symbols, use the 'sharedlibrary' command.*
152 To raise the threshold, set auto-solib-limit to a larger value and rerun.*
153 the program.*$gdb_prompt $"\
154 {pass "run to main hit auto-solib-limit threshold"}
155 -re "$gdb_prompt $"\
156 {fail "run to main hit auto-solib-limit threshold"}
157 timeout {fail "(timeout) run to main hit auto-solib-limit threshold"}
158 }
159
160 # Verify that "info share" mentions something about libraries whose
161 # symbols weren't loaded.
162 #
163 # We'll assume that at least the last two shlib's symbols weren't
164 # loaded. As a side-effect of matching this pattern, the text start
165 # address of the last one is captured in expect_out(1,string).
166 # (we'll need it for the 'add-symbol-file' command in a nonce...)
167 #
168 send_gdb "info sharedlibrary\n"
169 gdb_expect {
170 -re ".*lib01_$testfile.sl .*symbols not loaded.*0x\[0-9\]* (0x\[0-9a-fA-F\]*).*$gdb_prompt $"\
171 { send_gdb "add-symbol-file lib02_$testfile.sl $expect_out(1,string)\n"
172 gdb_expect {
173 -re "add symbol table.*y or n.*$"\
174 {send_gdb "y\n"
175 gdb_expect {
176 -re "$gdb_prompt $" {pass "add-symbol-file and info sharedlib"}
177 timeout {fail "(timeout) add-symbol-file and info sharedlib"}
178 }}
179 -re "$gdb_prompt $"\
180 {fail "add-symbol-file and info sharedlib"}
181 timeout {fail "(timeout) add-symbol-file and info sharedlib"}
182 }
183 }
184 -re "$gdb_prompt $" {
185 setup_xfail hppa*-*-* CHFts24108
186 fail "info sharedlibrary shows shlibs with unloaded symbols"
187 }
188 timeout {fail "(timeout) info sharedlibrary shows shlibs with unloaded symbols"}
189 }
190
191 # Verify that we can manually load the symbol table of a library
192 # whose symbols weren't loaded. (We'll pick the last one.)
193 #
194
195 # I moved this test inside the one above, because the expect_out array is not ok if the
196 # previous test has failed, and expect would error out (elz)
197 #
198 #send_gdb "add-symbol-file lib02_$testfile.sl $expect_out(1,string)\n"
199 #gdb_expect {
200 # -re "add symbol table.*y or n.*$"\
201 # {send_gdb "y\n"
202 # gdb_expect {
203 # -re "$gdb_prompt $" {pass "add-symbol-file"}
204 # timeout {fail "(timeout) add-symbol-file"}
205 # }}
206 # -re "$gdb_prompt $"\
207 # {fail "add-symbol-file"}
208 # timeout {fail "(timeout) add-symbol-file"}
209 #}
210
211 # Verify that we can manually load the symbols for all libraries
212 # which weren't already loaded.
213 #
214 # Warning! On a machine with little free swap space, this may
215 # fail!
216 #
217 send_gdb "sharedlibrary\n"
218 gdb_expect {
219 -re "Reading symbols from.*done.*$gdb_prompt $"\
220 {pass "sharedlibrary"}
221 -re "$gdb_prompt $" {
222 setup_xfail hppa*-*-* CHFts24108
223 fail "sharedlibrary"
224 }
225 timeout {fail "(timeout) sharedlibrary"}
226 }
227
228 # Rerun the program, this time verifying that we can set the
229 # threshhold high enough to avoid hitting it.
230 #
231 # It appears that gdb isn't freeing memory when rerunning, as one
232 # would expect. To avoid potentially hitting a virtual memory
233 # ceiling, start with a fresh gdb.
234 #
235 gdb_exit
236 gdb_start
237 gdb_reinitialize_dir $srcdir/$subdir
238 gdb_load ${binfile}
239
240 send_gdb "break main\n"
241 gdb_expect {
242 -re "Breakpoint \[0-9\]* at.*$gdb_prompt $"\
243 {pass "2 set break at main"}
244 -re "$gdb_prompt $"\
245 {fail "2 set break at main"}
246 timeout {fail "(timeout) 2 set break at main"}
247 }
248
249 send_gdb "set auto-solib-limit 9999\n"
250 gdb_expect {
251 -re "$gdb_prompt $"\
252 {pass "set auto-solib-limit threshold to practical infinity"}
253 timeout {fail "(timeout) set auto-solib-limit threshold to practical infinity"}
254 }
255 send_gdb "run\n"
256 gdb_expect {
257 -re ".*warning. Symbols for some libraries have not been loaded, because.*
258 doing so would exceed the size threshold specified by auto-solib-limit.*
259 To manually load symbols, use the 'sharedlibrary' command.*
260 To raise the threshold, set auto-solib-limit to a larger value and rerun.*
261 the program.*$gdb_prompt $"\
262 {fail "rerun threshold at practical infinity (still hit threshold)"}
263 -re "$gdb_prompt $"\
264 {pass "rerun with threshold at practical infinity"}
265 timeout {fail "(timeout) rerun with threshold at practical infinity"}
266 }
267
268 # Rerun the program, this time altogether disabling the auto loading
269 # feature. There should be no information at all about shared
270 # libraries now.
271 #
272 # ??rehrauer: Personally, I'd call that a bug, since it doesn't give
273 # you the ability to manually load single shlibs (you need the text
274 # start address that 'info share' normall gives you). On the other
275 # hand, one can easily choose to load them all...
276 #
277 # It appears that gdb isn't freeing memory when rerunning, as one
278 # would expect. To avoid potentially hitting a virtual memory
279 # ceiling, start with a fresh gdb.
280 #
281 gdb_exit
282 gdb_start
283 gdb_reinitialize_dir $srcdir/$subdir
284 gdb_load ${binfile}
285
286 send_gdb "break main\n"
287 gdb_expect {
288 -re "Breakpoint \[0-9\]* at.*$gdb_prompt $"\
289 {pass "3 set break at main"}
290 -re "$gdb_prompt $"\
291 {fail "3 set break at main"}
292 timeout {fail "(timeout) 3 set break at main"}
293 }
294
295 send_gdb "set auto-solib-limit 0\n"
296 gdb_expect {
297 -re "$gdb_prompt $"\
298 {pass "set auto-solib-limit threshold to 0"}
299 timeout {fail "(timeout) set auto-solib-limit threshold to 0"}
300 }
301 send_gdb "run\n"
302 gdb_expect {
303 -re ".*warning. Symbols for some libraries have not been loaded, because.*
304 doing so would exceed the size threshold specified by auto-solib-limit.*
305 To manually load symbols, use the 'sharedlibrary' command.*
306 To raise the threshold, set auto-solib-limit to a larger value and rerun.*
307 the program.*$gdb_prompt $"\
308 {fail "rerun threshold at 0 (still hit threshold)"}
309 -re "$gdb_prompt $"\
310 {pass "rerun with threshold at 0"}
311 timeout {fail "(timeout) rerun with threshold at 0"}
312 }
313
314 # Verify that we can still manually load symbols for all libraries.
315 # (We'll assume that if the last shlib's symbols are loaded, that
316 # all of them were.)
317 #
318 # Note that we set the GDB "height" variable to prevent GDB from
319 # prompting
320 #
321 # Warning! On a machine with little free swap space, this may
322 # fail!
323 #
324 send_gdb "set height 9999\n"
325 gdb_expect {
326 -re "$gdb_prompt $"\
327 {pass "set screen page height to practical infinity"}
328 timeout {fail "(timeout) set screen page height to practical infinity"}
329 }
330 send_gdb "sharedlibrary\n"
331 gdb_expect {
332 -re ".*Reading symbols from .*/lib02-so-thresh\\.sl\\.\\.\\.done\\..*$gdb_prompt $"\
333 {pass "manually load all symbols"}
334 -re "$gdb_prompt $" {
335 setup_xfail hppa*-*-* CHFts24108
336 fail "manually load all symbols (CHFts24108)"
337 }
338 timeout {fail "(timeout) manually load all symbols"}
339 }
340
341 return 0