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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-7.1/] [gdb/] [testsuite/] [gdb.base/] [attach.exp] - Blame information for rev 862

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1 227 jeremybenn
# Copyright 1997, 1999, 2002, 2003, 2004, 2007, 2008, 2009, 2010
2
# Free Software Foundation, Inc.
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 3 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, see .  */
16
 
17
if $tracelevel then {
18
    strace $tracelevel
19
}
20
 
21
set prms_id 0
22
set bug_id 0
23
 
24
# On HP-UX 11.0, this test is causing a process running the program
25
# "attach" to be left around spinning.  Until we figure out why, I am
26
# commenting out the test to avoid polluting tiamat (our 11.0 nightly
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# test machine) with these processes. RT
28
#
29
# Setting the magic bit in the target app should work.  I added a
30
# "kill", and also a test for the R3 register warning.  JB
31
if { [istarget "hppa*-*-hpux*"] } {
32
    return 0
33
}
34
 
35
# are we on a target board
36
if [is_remote target] then {
37
    return 0
38
}
39
 
40
set testfile "attach"
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set srcfile  ${testfile}.c
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set srcfile2 ${testfile}2.c
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set binfile  ${objdir}/${subdir}/${testfile}
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set binfile2 ${objdir}/${subdir}/${testfile}2
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set escapedbinfile  [string_to_regexp ${objdir}/${subdir}/${testfile}]
46
 
47
#execute_anywhere "rm -f ${binfile} ${binfile2}"
48
remote_exec build "rm -f ${binfile} ${binfile2}"
49
# For debugging this test
50
#
51
#log_user 1
52
 
53
# build the first test case
54
#
55
if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
56
    untested attach.exp
57
    return -1
58
}
59
 
60
# Build the in-system-call test
61
 
62
if  { [gdb_compile "${srcdir}/${subdir}/${srcfile2}" "${binfile2}" executable {debug}] != "" } {
63
    untested attach.exp
64
    return -1
65
}
66
 
67
if [get_compiler_info ${binfile}] {
68
    return -1
69
}
70
 
71
proc do_attach_tests {} {
72
    global gdb_prompt
73
    global binfile
74
    global escapedbinfile
75
    global srcfile
76
    global testfile
77
    global objdir
78
    global subdir
79
    global timeout
80
 
81
    # Start the program running and then wait for a bit, to be sure
82
    # that it can be attached to.
83
 
84
    set testpid [eval exec $binfile &]
85
    exec sleep 2
86
    if { [istarget "*-*-cygwin*"] } {
87
        # testpid is the Cygwin PID, GDB uses the Windows PID, which might be
88
        # different due to the way fork/exec works.
89
        set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ]
90
    }
91
 
92
    # Verify that we cannot attach to nonsense.
93
 
94
    set test "attach to nonsense is prohibited"
95
    gdb_test_multiple "attach abc" "$test" {
96
        -re "Illegal process-id: abc\\.\r\n$gdb_prompt $" {
97
            pass "$test"
98
        }
99
        -re "Attaching to.*, process .*couldn't open /proc file.*$gdb_prompt $" {
100
            # Response expected from /proc-based systems.
101
            pass "$test"
102
        }
103
        -re "Can't attach to process..*$gdb_prompt $" {
104
            # Response expected on Cygwin
105
            pass "$test"
106
        }
107
        -re "Attaching to.*$gdb_prompt $" {
108
            fail "$test (bogus pid allowed)"
109
        }
110
    }
111
 
112
    # Verify that we cannot attach to nonsense even if its initial part is
113
    # a valid PID.
114
 
115
    set test "attach to digits-starting nonsense is prohibited"
116
    gdb_test_multiple "attach ${testpid}x" "$test" {
117
        -re "Illegal process-id: ${testpid}x\\.\r\n$gdb_prompt $" {
118
            pass "$test"
119
        }
120
        -re "Attaching to.*, process .*couldn't open /proc file.*$gdb_prompt $" {
121
            # Response expected from /proc-based systems.
122
            pass "$test"
123
        }
124
        -re "Can't attach to process..*$gdb_prompt $" {
125
            # Response expected on Cygwin
126
            pass "$test"
127
        }
128
        -re "Attaching to.*$gdb_prompt $" {
129
            fail "$test (bogus pid allowed)"
130
        }
131
    }
132
 
133
    # Verify that we cannot attach to what appears to be a valid
134
    # process ID, but is a process that doesn't exist.  Traditionally,
135
    # most systems didn't have a process with ID 0, so we take that as
136
    # the default.  However, there are a few exceptions.
137
 
138
    set boguspid 0
139
    if { [istarget "*-*-*bsd*"] } {
140
        # In FreeBSD 5.0, PID 0 is used for "swapper".  Use -1 instead
141
        # (which should have the desired effect on any version of
142
        # FreeBSD, and probably other *BSD's too).
143
        set boguspid -1
144
    }
145
    set test "attach to nonexistent process is prohibited"
146
    gdb_test_multiple "attach $boguspid" "$test" {
147
        -re "Attaching to.*, process $boguspid.*No such process.*$gdb_prompt $" {
148
            # Response expected on ptrace-based systems (i.e. HP-UX 10.20).
149
            pass "$test"
150
        }
151
        -re "Attaching to.*, process $boguspid failed.*Hint.*$gdb_prompt $" {
152
            # Response expected on ttrace-based systems (i.e. HP-UX 11.0).
153
            pass "$test"
154
        }
155
        -re "Attaching to.*, process $boguspid.*denied.*$gdb_prompt $" {
156
            pass "$test"
157
        }
158
        -re "Attaching to.*, process $boguspid.*not permitted.*$gdb_prompt $" {
159
            pass "$test"
160
        }
161
        -re "Attaching to.*, process .*couldn't open /proc file.*$gdb_prompt $" {
162
            # Response expected from /proc-based systems.
163
            pass "$test"
164
        }
165
        -re "Can't attach to process..*$gdb_prompt $" {
166
            # Response expected on Cygwin
167
            pass "$test"
168
        }
169
    }
170
 
171
    # Verify that we can attach to the process by first giving its
172
    # executable name via the file command, and using attach with the
173
    # process ID.
174
 
175
    # (Actually, the test system appears to do this automatically for
176
    # us.  So, we must also be prepared to be asked if we want to
177
    # discard an existing set of symbols.)
178
 
179
    set test "set file, before attach1"
180
    gdb_test_multiple "file $binfile" "$test" {
181
        -re "Load new symbol table from.*y or n. $" {
182
            gdb_test "y" "Reading symbols from $escapedbinfile\.\.\.*done." \
183
                "$test (re-read)"
184
        }
185
        -re "Reading symbols from $escapedbinfile\.\.\.*done.*$gdb_prompt $" {
186
            pass "$test"
187
        }
188
    }
189
 
190
    set test "attach1, after setting file"
191
    gdb_test_multiple "attach $testpid" "$test" {
192
        -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*main.*at .*$srcfile:.*$gdb_prompt $" {
193
            pass "$test"
194
        }
195
        -re "Attaching to program.*`?$escapedbinfile\.exe'?, process $testpid.*\[Switching to thread $testpid\..*\].*$gdb_prompt $" {
196
            # Response expected on Cygwin
197
            pass "$test"
198
        }
199
    }
200
 
201
    # Verify that we can "see" the variable "should_exit" in the
202
    # program, and that it is zero.
203
 
204
    gdb_test "print should_exit" " = 0" "after attach1, print should_exit"
205
 
206
    # Detach the process.
207
 
208
    gdb_test "detach" \
209
        "Detaching from program: .*$escapedbinfile, process $testpid" \
210
        "attach1 detach"
211
 
212
    # Wait a bit for gdb to finish detaching
213
 
214
    exec sleep 5
215
 
216
    # Purge the symbols from gdb's brain.  (We want to be certain the
217
    # next attach, which won't be preceded by a "file" command, is
218
    # really getting the executable file without our help.)
219
 
220
    set old_timeout $timeout
221
    set timeout 15
222
    set test "attach1, purging symbols after detach"
223
    gdb_test_multiple "file" "$test" {
224
        -re "No executable file now.*Discard symbol table.*y or n. $" {
225
            gdb_test "y" "No symbol file now." "$test"
226
        }
227
    }
228
    set timeout $old_timeout
229
 
230
    # Verify that we can attach to the process just by giving the
231
    # process ID.
232
 
233
    set test "set file, before attach2"
234
    gdb_test_multiple "attach $testpid" "$test" {
235
        -re "Attaching to process $testpid.*Load new symbol table from \"$escapedbinfile\.exe\".*y or n. $" {
236
            # On Cygwin, the DLL's symbol tables are loaded prior to the
237
            # executable's symbol table.  This in turn always results in
238
            # asking the user for actually loading the symbol table of the
239
            # executable.
240
            gdb_test "y" "Reading symbols from $escapedbinfile\.\.\.*done." \
241
                "$test (reset file)"
242
        }
243
        -re "Attaching to process $testpid.*Reading symbols from $escapedbinfile.*main.*at .*$gdb_prompt $" {
244
            pass "$test"
245
        }
246
    }
247
 
248
    # Verify that we can modify the variable "should_exit" in the
249
    # program.
250
 
251
    gdb_test "set should_exit=1" "" "after attach2, set should_exit"
252
 
253
    # Verify that the modification really happened.
254
 
255
    send_gdb "tbreak 19\n"
256
    gdb_expect {
257
        -re "Temporary breakpoint .*at.*$srcfile, line 19.*$gdb_prompt $" {
258
            pass "after attach2, set tbreak postloop"
259
        }
260
        -re "$gdb_prompt $" {
261
            fail "after attach2, set tbreak postloop"
262
        }
263
        timeout {
264
            fail "(timeout) after attach2, set tbreak postloop"
265
        }
266
    }
267
    send_gdb "continue\n"
268
    gdb_expect {
269
        -re "main.*at.*$srcfile:19.*$gdb_prompt $" {
270
            pass "after attach2, reach tbreak postloop"
271
        }
272
        -re "$gdb_prompt $" {
273
            fail "after attach2, reach tbreak postloop"
274
        }
275
        timeout {
276
            fail "(timeout) after attach2, reach tbreak postloop"
277
        }
278
    }
279
 
280
    # Allow the test process to exit, to cleanup after ourselves.
281
 
282
    gdb_test "continue" "Program exited normally." "after attach2, exit"
283
 
284
    # Make sure we don't leave a process around to confuse
285
    # the next test run (and prevent the compile by keeping
286
    # the text file busy), in case the "set should_exit" didn't
287
    # work.
288
 
289
    remote_exec build "kill -9 ${testpid}"
290
 
291
    # Start the program running and then wait for a bit, to be sure
292
    # that it can be attached to.
293
 
294
    set testpid [eval exec $binfile &]
295
    exec sleep 2
296
    if { [istarget "*-*-cygwin*"] } {
297
        # testpid is the Cygwin PID, GDB uses the Windows PID, which might be
298
        # different due to the way fork/exec works.
299
        set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ]
300
    }
301
 
302
    # Verify that we can attach to the process, and find its a.out
303
    # when we're cd'd to some directory that doesn't contain the
304
    # a.out.  (We use the source path set by the "dir" command.)
305
 
306
    gdb_test "dir ${objdir}/${subdir}" "Source directories searched: .*" \
307
        "set source path"
308
 
309
    gdb_test "cd /tmp" "Working directory /tmp." \
310
        "cd away from process working directory"
311
 
312
    # Explicitly flush out any knowledge of the previous attachment.
313
 
314
    set test "before attach3, flush symbols"
315
    gdb_test_multiple "symbol-file" "$test" {
316
        -re "Discard symbol table from.*y or n. $" {
317
            gdb_test "y" "No symbol file now." \
318
                "$test"
319
        }
320
        -re "No symbol file now.*$gdb_prompt $" {
321
            pass "$test"
322
        }
323
    }
324
 
325
    gdb_test "exec" "No executable file now." \
326
        "before attach3, flush exec"
327
 
328
    gdb_test "attach $testpid" \
329
        "Attaching to process $testpid.*Reading symbols from $escapedbinfile.*main.*at .*" \
330
        "attach when process' a.out not in cwd"
331
 
332
    set test "after attach3, exit"
333
    gdb_test_multiple "kill" "$test" {
334
        -re "Kill the program being debugged.*y or n. $" {
335
            gdb_test "y" "" "$test"
336
        }
337
    }
338
 
339
    # Another "don't leave a process around"
340
    remote_exec build "kill -9 ${testpid}"
341
}
342
 
343
proc do_call_attach_tests {} {
344
    global gdb_prompt
345
    global binfile2
346
 
347
    # Start the program running and then wait for a bit, to be sure
348
    # that it can be attached to.
349
 
350
    set testpid [eval exec $binfile2 &]
351
    exec sleep 2
352
    if { [istarget "*-*-cygwin*"] } {
353
        # testpid is the Cygwin PID, GDB uses the Windows PID, which might be
354
        # different due to the way fork/exec works.
355
        set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ]
356
    }
357
 
358
    # Attach
359
 
360
    gdb_test "file $binfile2" "" "force switch to gdb64, if necessary"
361
    set test "attach call"
362
    gdb_test_multiple "attach $testpid" "$test" {
363
        -re "warning: reading register.*I.*O error.*$gdb_prompt $" {
364
            fail "$test (read register error)"
365
        }
366
        -re "Attaching to.*process $testpid.*libc.*$gdb_prompt $" {
367
            pass "$test"
368
        }
369
        -re "Attaching to.*process $testpid.*\[Switching to thread $testpid\..*\].*$gdb_prompt $" {
370
            pass "$test"
371
        }
372
    }
373
 
374
    # See if other registers are problems
375
 
376
    set test "info other register"
377
    gdb_test_multiple "i r r3" "$test" {
378
        -re "warning: reading register.*$gdb_prompt $" {
379
            fail "$test"
380
        }
381
        -re "r3.*$gdb_prompt $" {
382
            pass "$test"
383
        }
384
    }
385
 
386
    # Get rid of the process
387
 
388
    gdb_test "p should_exit = 1"
389
    gdb_test "c" "Program exited normally."
390
 
391
    # Be paranoid
392
 
393
    remote_exec build "kill -9 ${testpid}"
394
}
395
 
396
 
397
# Start with a fresh gdb
398
 
399
gdb_exit
400
gdb_start
401
gdb_reinitialize_dir $srcdir/$subdir
402
gdb_load ${binfile}
403
 
404
# This is a test of gdb's ability to attach to a running process.
405
 
406
do_attach_tests
407
 
408
# Test attaching when the target is inside a system call
409
 
410
gdb_exit
411
gdb_start
412
 
413
gdb_reinitialize_dir $srcdir/$subdir
414
do_call_attach_tests
415
 
416
return 0

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