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[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [testsuite/] [gdb.threads/] [pthreads.exp] - Blame information for rev 1765

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1 106 markom
# Copyright (C) 1996, 1997 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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# Please email any bugs, comments, and/or additions to this file to:
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# bug-gdb@prep.ai.mit.edu
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# This file was written by Fred Fish. (fnf@cygnus.com)
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22
if $tracelevel then {
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        strace $tracelevel
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}
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set prms_id 0
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set bug_id 0
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# This only works with native configurations
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if ![isnative] then {
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    return
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}
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set testfile "pthreads"
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set srcfile ${testfile}.c
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set binfile ${objdir}/${subdir}/${testfile}
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# regexp for "horizontal" text (i.e. doesn't include newline or
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# carriage return)
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set horiz "\[^\n\r\]*"
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set built_binfile 0
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if [istarget "*-*-linux"] then {
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    set target_cflags "-D_MIT_POSIX_THREADS"
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} else {
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    set target_cflags ""
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}
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set why_msg "unrecognized error"
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foreach lib {-lpthreads -lpthread -lthread} {
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    set options "debug"
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    lappend options "incdir=${objdir}/${subdir}"
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    lappend options "libs=$lib"
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    set ccout [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $options]
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    switch -regexp -- $ccout {
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        ".*no posix threads support.*" {
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            set why_msg "missing threads include file"
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            break
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        }
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        ".*cannot open -lpthread.*" {
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            set why_msg "missing runtime threads library"
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        }
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        ".*Can't find library for -lpthread.*" {
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            set why_msg "missing runtime threads library"
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        }
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        {^$} {
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            pass "successfully compiled posix threads test case"
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            set built_binfile 1
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            break
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        }
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    }
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}
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if {$built_binfile == "0"} {
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    unsupported "Couldn't compile ${srcfile}, ${why_msg}"
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    return -1
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}
76
 
77
# Now we can proceed with the real testing.
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79
# Start with a fresh gdb.
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81
gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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86
gdb_test "set print sevenbit-strings" ""
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#gdb_test "set print address off" ""
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gdb_test "set width 0" ""
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90
# We'll need this when we send_gdb a ^C to GDB.  Need to do it before we
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# run the program and gdb starts saving and restoring tty states.
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# On Ultrix, we don't need it and it is really slow (because shell_escape
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# doesn't use vfork).
94
if ![istarget "*-*-ultrix*"] then {
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    gdb_test "shell stty intr '^C'" ""
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}
97
 
98
proc all_threads_running {} {
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    global gdb_prompt
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    global srcfile
101
 
102
    # Reset all the counters to zero.
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    gdb_test "set var common_routine::hits=0" ""
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    gdb_test "set var common_routine::from_thread1=0" ""
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    gdb_test "set var common_routine::from_thread2=0" ""
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    gdb_test "set var common_routine::from_main=0" ""
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    gdb_test "set var common_routine::full_coverage=0" ""
108
 
109
    # Disable all breakpoints.
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    gdb_test "disable" ""
111
 
112
    # Set up a breakpoint that will cause us to stop when we have
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    # been called 15 times.  This should be plenty of time to allow
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    # every thread to run at least once, since each thread sleeps for
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    # one second between calls to common_routine.
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    gdb_test "tbreak common_routine if hits >= 15" ""
117
 
118
    # Start all the threads running again and wait for the inferior
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    # to stop.  Since no other breakpoints are set at this time
120
    # we should stop only when we have been previously called 15 times.
121
 
122
    send_gdb "continue\n"
123
    gdb_expect {
124
        -re "Continuing.*common_routine.*at.*$srcfile.*$gdb_prompt $" {}
125
        default {
126
            fail "continue until common routine run 15 times"
127
            return 0
128
        }
129
        timeout {
130
            fail "continue until common routine run 15 times (timeout)"
131
            return 0
132
        }
133
    }
134
 
135
    # Check that we stopped when we actually expected to stop, by
136
    # verifying that there have been 15 previous hits.
137
 
138
    # NOTE: Because of synchronization behavior, it is possible for
139
    # more than one thread to increment "hits" between one breakpoint
140
    # trap and the next.  So stopping after 16 or 17 hits should be
141
    # considered acceptable.
142
 
143
    send_gdb "p common_routine::hits\n"
144
    gdb_expect {
145
        -re ".*= 15\r\n$gdb_prompt $" {}
146
        -re ".*= 16\r\n$gdb_prompt $" {}
147
        -re ".*= 17\r\n$gdb_prompt $" {}
148
        default {
149
            fail "stopped before calling common_routine 15 times"
150
            return 0
151
        }
152
        -re ".*$gdb_prompt $" {
153
            fail "stopped before calling common_routine 15 times"
154
            return 0
155
        }
156
        timeout {
157
            fail "stopped before calling common_routine 15 times (timeout)"
158
            return 0
159
        }
160
    }
161
 
162
    # Also check that all of the threads have run, which will only be true
163
    # if the full_coverage variable is set.
164
 
165
    send_gdb "p common_routine::full_coverage\n"
166
    gdb_expect {
167
        -re ".*= 1\r\n$gdb_prompt $" {}
168
        default {
169
            fail "some threads didn't run"
170
            return 0
171
        }
172
        timeout {
173
            fail "some threads didn't run (timeout)"
174
            return 0
175
        }
176
    }
177
 
178
    # Looks fine, return success.
179
    return 1
180
}
181
 
182
proc test_startup {} {
183
    global srcdir srcfile gdb_prompt expect_out
184
    global horiz
185
    global main_id thread1_id thread2_id
186
 
187
    # We should be able to do an info threads before starting any others.
188
    send_gdb "info threads\n"
189
    gdb_expect {
190
        -re ".*Thread.*LWP.*main.*$gdb_prompt $" {
191
            pass "info threads"
192
        }
193
        -re "\r\n$gdb_prompt $" {
194
            pass "info threads"
195
            setup_xfail "*-*-*"
196
            fail "gdb does not support pthreads for this machine"
197
            return 0
198
        }
199
    }
200
 
201
    # Extract the thread id number of main thread from "info threads" output.
202
    send_gdb "info threads\n"
203
    gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}main.*)($gdb_prompt $)"
204
    set main_id $expect_out(1,string)
205
 
206
    # Check that we can continue and create the first thread.
207
    gdb_test "break thread1" "Breakpoint .* file .*$srcdir.*"
208
    gdb_test "continue" \
209
            "Continuing.*Breakpoint .*, thread1 \\(arg=0xfeedface\\).*at.*$srcfile.*" \
210
            "Continue to creation of first thread"
211
    gdb_test "disable" ""
212
 
213
    # Extract the thread id number of thread 1 from "info threads" output.
214
    send_gdb "info threads\n"
215
    gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}thread1.*)($gdb_prompt $)"
216
    set thread1_id $expect_out(1,string)
217
 
218
    # Check that we can continue and create the second thread,
219
    # ignoring the first thread for the moment.
220
    gdb_test "break thread2" "Breakpoint .* file .*$srcdir.*"
221
    gdb_test "continue" \
222
            "Continuing.*Breakpoint .*, thread2 \\(arg=0xdeadbeef\\).*at.*$srcfile.*" \
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            "Continue to creation of second thread"
224
 
225
    # Extract the thread id number of thread 2 from "info threads" output.
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    send_gdb "info threads\n"
227
    gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}thread2.*)($gdb_prompt $)"
228
    set thread2_id $expect_out(1,string)
229
 
230
    return 1
231
}
232
 
233
proc check_control_c {} {
234
    global gdb_prompt
235
 
236
    # Verify that all threads are running.
237
    if [all_threads_running] then {
238
        pass "All threads running after startup"
239
    }
240
 
241
    # Send a continue followed by ^C to the process to stop it.
242
    send_gdb "continue\n"
243
    set description "Stopped with a ^C"
244
    after 1000 [send_gdb "\003"]
245
    gdb_expect {
246
        -re "Program received signal SIGINT.*$gdb_prompt $" {
247
            pass $description
248
        }
249
        -re "Quit.*$gdb_prompt $" {
250
            pass $description
251
        }
252
        timeout {
253
            fail "$description (timeout)"
254
        }
255
    }
256
    gdb_test "bt" ""
257
 
258
    # Verify that all threads can be run again after a ^C stop.
259
    if [all_threads_running] then {
260
        pass "All threads running after continuing from ^C stop"
261
    }
262
}
263
 
264
proc check_backtraces {} {
265
    global gdb_prompt main_id thread1_id thread2_id
266
 
267
    # Check that the "thread apply N backtrace" command works
268
 
269
    gdb_test "thread apply $main_id backtrace" \
270
            ".* in main \\(argc=.*, argv=.*\\).*" \
271
            "check backtrace from main thread"
272
    gdb_test "thread apply $thread1_id backtrace" \
273
            ".* in thread1 \\(arg=0xfeedface\\).*" \
274
            "check backtrace from thread 1"
275
    gdb_test "thread apply $thread2_id backtrace" \
276
            ".* in thread2 \\(arg=0xdeadbeef\\).*" \
277
            "check backtrace from thread 2"
278
 
279
    # Check that we can apply the backtrace command to all
280
    # three threads with a single gdb command
281
 
282
    gdb_test "thread apply $main_id $thread1_id $thread2_id bt" \
283
            ".* in main .* in thread1 .* in thread2.*" \
284
            "apply backtrace command to all three threads"
285
 
286
    # Check that we can do thread specific backtraces
287
    # This also tests that we can do thread specific breakpoints.
288
 
289
    gdb_test "break common_routine thread $thread2_id" \
290
            "Breakpoint .* at 0x.* file .* line .*" \
291
            "set break at common_routine in thread 2"
292
 
293
    send_gdb "continue\n"
294
    gdb_expect {
295
        -re "Breakpoint .* common_routine \\(arg=2\\).*" {
296
            send_gdb "backtrace\n"
297
            gdb_expect {
298
                -re "#0.*common_routine \\(arg=2\\).*#1.*thread2.*" {
299
                    pass "backtrace from thread 2 bkpt in common_routine"
300
                }
301
                default {
302
                    fail "backtrace from thread 2 bkpt in common_routine"
303
                }
304
                timeout {
305
                    fail "backtrace from thread 2 bkpt in common_routine (timeout)"
306
                }
307
            }
308
        }
309
        -re "Breakpoint .* common_routine \\(arg=0\\).*" {
310
            fail "stopped in main thread at breakpoint for thread 2"
311
        }
312
        -re "Breakpoint .* common_routine \\(arg=1\\).*" {
313
            fail "stopped in main thread at breakpoint for thread 1"
314
        }
315
        -re ".*$gdb_prompt" {
316
            fail "continue to bkpt at common_routine in thread 2"
317
        }
318
        default {
319
            fail "continue to bkpt at common_routine in thread 2"
320
        }
321
        timeout {
322
            fail "continue to bkpt at common_routine in thread 2 (timeout)"
323
        }
324
    }
325
}
326
 
327
setup_xfail "alpha-*-osf*"
328
if [runto_main] then {
329
    clear_xfail "alpha-*-osf*"
330
    if [test_startup] then {
331
        check_control_c
332
        check_backtraces
333
    }
334
}
335
clear_xfail "alpha-*-osf*"

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