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42a4f53d | 1 | # Copyright 1997-2019 Free Software Foundation, Inc. |
74cf1395 JM |
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 | |
e22f8b7c | 5 | # the Free Software Foundation; either version 3 of the License, or |
74cf1395 | 6 | # (at your option) any later version. |
e22f8b7c | 7 | # |
74cf1395 JM |
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. | |
e22f8b7c | 12 | # |
74cf1395 | 13 | # You should have received a copy of the GNU General Public License |
e22f8b7c | 14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
74cf1395 | 15 | |
60b3033e | 16 | if {![can_spawn_for_attach]} { |
74cf1395 JM |
17 | return 0 |
18 | } | |
19 | ||
a64d2530 TT |
20 | standard_testfile attach.c attach2.c |
21 | set binfile2 ${binfile}2 | |
22 | set escapedbinfile [string_to_regexp $binfile] | |
74cf1395 JM |
23 | |
24 | #execute_anywhere "rm -f ${binfile} ${binfile2}" | |
25 | remote_exec build "rm -f ${binfile} ${binfile2}" | |
26 | # For debugging this test | |
27 | # | |
28 | #log_user 1 | |
29 | ||
74cf1395 JM |
30 | # build the first test case |
31 | # | |
32 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { | |
84c93cd5 | 33 | untested "failed to compile" |
b60f0898 | 34 | return -1 |
74cf1395 JM |
35 | } |
36 | ||
74cf1395 JM |
37 | # Build the in-system-call test |
38 | ||
39 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile2}" "${binfile2}" executable {debug}] != "" } { | |
84c93cd5 | 40 | untested "failed to compile in-system-call test" |
b60f0898 | 41 | return -1 |
74cf1395 JM |
42 | } |
43 | ||
4c93b1db | 44 | if [get_compiler_info] { |
74cf1395 JM |
45 | return -1 |
46 | } | |
47 | ||
48 | proc do_attach_tests {} { | |
1279f4ff AC |
49 | global gdb_prompt |
50 | global binfile | |
51 | global escapedbinfile | |
52 | global srcfile | |
53 | global testfile | |
1279f4ff AC |
54 | global subdir |
55 | global timeout | |
f67c0c91 | 56 | global decimal |
1279f4ff | 57 | |
1586c8fb GB |
58 | # Figure out a regular expression that will match the sysroot, |
59 | # noting that the default sysroot is "target:", and also noting | |
60 | # that GDB will strip "target:" from the start of filenames when | |
d4d38844 YQ |
61 | # operating on the local filesystem. However the default sysroot |
62 | # can be set via configure option --with-sysroot, which can be "/". | |
63 | # If $binfile is a absolute path, so pattern | |
64 | # "$sysroot$escapedbinfile" below is wrong. Use [^\r\n]* to make | |
65 | # $sysroot simple. | |
66 | set sysroot "\[^\r\n\]*" | |
1586c8fb | 67 | |
1279f4ff AC |
68 | # Start the program running and then wait for a bit, to be sure |
69 | # that it can be attached to. | |
70 | ||
2c8c5d37 PA |
71 | set test_spawn_id [spawn_wait_for_attach $binfile] |
72 | set testpid [spawn_id_get_pid $test_spawn_id] | |
1279f4ff AC |
73 | |
74 | # Verify that we cannot attach to nonsense. | |
75 | ||
8b1b3228 AC |
76 | set test "attach to nonsense is prohibited" |
77 | gdb_test_multiple "attach abc" "$test" { | |
74164c56 JK |
78 | -re "Illegal process-id: abc\\.\r\n$gdb_prompt $" { |
79 | pass "$test" | |
80 | } | |
81 | -re "Attaching to.*, process .*couldn't open /proc file.*$gdb_prompt $" { | |
82 | # Response expected from /proc-based systems. | |
83 | pass "$test" | |
84 | } | |
85 | -re "Can't attach to process..*$gdb_prompt $" { | |
86 | # Response expected on Cygwin | |
87 | pass "$test" | |
88 | } | |
89 | -re "Attaching to.*$gdb_prompt $" { | |
90 | fail "$test (bogus pid allowed)" | |
91 | } | |
92 | } | |
93 | ||
94 | # Verify that we cannot attach to nonsense even if its initial part is | |
95 | # a valid PID. | |
96 | ||
97 | set test "attach to digits-starting nonsense is prohibited" | |
98 | gdb_test_multiple "attach ${testpid}x" "$test" { | |
99 | -re "Illegal process-id: ${testpid}x\\.\r\n$gdb_prompt $" { | |
8b1b3228 | 100 | pass "$test" |
1279f4ff AC |
101 | } |
102 | -re "Attaching to.*, process .*couldn't open /proc file.*$gdb_prompt $" { | |
103 | # Response expected from /proc-based systems. | |
8b1b3228 | 104 | pass "$test" |
1279f4ff | 105 | } |
8b1b3228 | 106 | -re "Can't attach to process..*$gdb_prompt $" { |
1279f4ff | 107 | # Response expected on Cygwin |
8b1b3228 | 108 | pass "$test" |
1279f4ff AC |
109 | } |
110 | -re "Attaching to.*$gdb_prompt $" { | |
8b1b3228 | 111 | fail "$test (bogus pid allowed)" |
1279f4ff AC |
112 | } |
113 | } | |
114 | ||
115 | # Verify that we cannot attach to what appears to be a valid | |
116 | # process ID, but is a process that doesn't exist. Traditionally, | |
117 | # most systems didn't have a process with ID 0, so we take that as | |
118 | # the default. However, there are a few exceptions. | |
119 | ||
120 | set boguspid 0 | |
121 | if { [istarget "*-*-*bsd*"] } { | |
122 | # In FreeBSD 5.0, PID 0 is used for "swapper". Use -1 instead | |
123 | # (which should have the desired effect on any version of | |
124 | # FreeBSD, and probably other *BSD's too). | |
125 | set boguspid -1 | |
126 | } | |
8b1b3228 AC |
127 | set test "attach to nonexistent process is prohibited" |
128 | gdb_test_multiple "attach $boguspid" "$test" { | |
1279f4ff AC |
129 | -re "Attaching to.*, process $boguspid.*No such process.*$gdb_prompt $" { |
130 | # Response expected on ptrace-based systems (i.e. HP-UX 10.20). | |
8b1b3228 | 131 | pass "$test" |
1279f4ff AC |
132 | } |
133 | -re "Attaching to.*, process $boguspid failed.*Hint.*$gdb_prompt $" { | |
134 | # Response expected on ttrace-based systems (i.e. HP-UX 11.0). | |
8b1b3228 | 135 | pass "$test" |
1279f4ff AC |
136 | } |
137 | -re "Attaching to.*, process $boguspid.*denied.*$gdb_prompt $" { | |
8b1b3228 | 138 | pass "$test" |
1279f4ff AC |
139 | } |
140 | -re "Attaching to.*, process $boguspid.*not permitted.*$gdb_prompt $" { | |
8b1b3228 | 141 | pass "$test" |
1279f4ff AC |
142 | } |
143 | -re "Attaching to.*, process .*couldn't open /proc file.*$gdb_prompt $" { | |
144 | # Response expected from /proc-based systems. | |
8b1b3228 | 145 | pass "$test" |
1279f4ff | 146 | } |
8b1b3228 | 147 | -re "Can't attach to process..*$gdb_prompt $" { |
1279f4ff | 148 | # Response expected on Cygwin |
8b1b3228 | 149 | pass "$test" |
1279f4ff | 150 | } |
7cee1e54 PA |
151 | -re "Attaching to.*, process $boguspid.*failed.*$gdb_prompt $" { |
152 | # Response expected on the extended-remote target. | |
153 | pass "$test" | |
154 | } | |
1279f4ff AC |
155 | } |
156 | ||
157 | # Verify that we can attach to the process by first giving its | |
158 | # executable name via the file command, and using attach with the | |
159 | # process ID. | |
160 | ||
161 | # (Actually, the test system appears to do this automatically for | |
162 | # us. So, we must also be prepared to be asked if we want to | |
163 | # discard an existing set of symbols.) | |
164 | ||
8b1b3228 AC |
165 | set test "set file, before attach1" |
166 | gdb_test_multiple "file $binfile" "$test" { | |
167 | -re "Load new symbol table from.*y or n. $" { | |
3453e7e4 | 168 | gdb_test "y" "Reading symbols from $escapedbinfile\.\.\.*" \ |
8b1b3228 | 169 | "$test (re-read)" |
1279f4ff | 170 | } |
3453e7e4 | 171 | -re "Reading symbols from $escapedbinfile\.\.\.*$gdb_prompt $" { |
8b1b3228 | 172 | pass "$test" |
1279f4ff AC |
173 | } |
174 | } | |
175 | ||
8b1b3228 AC |
176 | set test "attach1, after setting file" |
177 | gdb_test_multiple "attach $testpid" "$test" { | |
1279f4ff | 178 | -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*main.*at .*$srcfile:.*$gdb_prompt $" { |
8b1b3228 | 179 | pass "$test" |
1279f4ff AC |
180 | } |
181 | -re "Attaching to program.*`?$escapedbinfile\.exe'?, process $testpid.*\[Switching to thread $testpid\..*\].*$gdb_prompt $" { | |
182 | # Response expected on Cygwin | |
8b1b3228 | 183 | pass "$test" |
1279f4ff AC |
184 | } |
185 | } | |
186 | ||
187 | # Verify that we can "see" the variable "should_exit" in the | |
188 | # program, and that it is zero. | |
189 | ||
8b1b3228 | 190 | gdb_test "print should_exit" " = 0" "after attach1, print should_exit" |
1279f4ff AC |
191 | |
192 | # Detach the process. | |
193 | ||
8b1b3228 | 194 | gdb_test "detach" \ |
f67c0c91 | 195 | "Detaching from program: .*$escapedbinfile, process $testpid\r\n\\\[Inferior $decimal \\(.*\\) detached\\\]" \ |
8b1b3228 | 196 | "attach1 detach" |
1279f4ff AC |
197 | |
198 | # Wait a bit for gdb to finish detaching | |
199 | ||
200 | exec sleep 5 | |
201 | ||
202 | # Purge the symbols from gdb's brain. (We want to be certain the | |
203 | # next attach, which won't be preceded by a "file" command, is | |
204 | # really getting the executable file without our help.) | |
205 | ||
206 | set old_timeout $timeout | |
207 | set timeout 15 | |
8b1b3228 AC |
208 | set test "attach1, purging symbols after detach" |
209 | gdb_test_multiple "file" "$test" { | |
210 | -re "No executable file now.*Discard symbol table.*y or n. $" { | |
211 | gdb_test "y" "No symbol file now." "$test" | |
1279f4ff AC |
212 | } |
213 | } | |
214 | set timeout $old_timeout | |
215 | ||
216 | # Verify that we can attach to the process just by giving the | |
217 | # process ID. | |
218 | ||
7cee1e54 PA |
219 | set test "attach2, with no file" |
220 | set found_exec_file 0 | |
8b1b3228 | 221 | gdb_test_multiple "attach $testpid" "$test" { |
1586c8fb | 222 | -re "Attaching to process $testpid.*Load new symbol table from \"$sysroot$escapedbinfile\.exe\".*y or n. $" { |
1279f4ff AC |
223 | # On Cygwin, the DLL's symbol tables are loaded prior to the |
224 | # executable's symbol table. This in turn always results in | |
225 | # asking the user for actually loading the symbol table of the | |
226 | # executable. | |
3453e7e4 | 227 | gdb_test "y" "Reading symbols from $sysroot$escapedbinfile\.\.\.*" \ |
8b1b3228 | 228 | "$test (reset file)" |
7cee1e54 PA |
229 | |
230 | set found_exec_file 1 | |
1279f4ff | 231 | } |
1586c8fb | 232 | -re "Attaching to process $testpid.*Reading symbols from $sysroot$escapedbinfile.*main.*at .*$gdb_prompt $" { |
8b1b3228 | 233 | pass "$test" |
7cee1e54 PA |
234 | set found_exec_file 1 |
235 | } | |
236 | } | |
237 | ||
238 | if {$found_exec_file == 0} { | |
239 | set test "load file manually, after attach2" | |
240 | gdb_test_multiple "file $binfile" "$test" { | |
241 | -re "A program is being debugged already..*Are you sure you want to change the file.*y or n. $" { | |
3453e7e4 | 242 | gdb_test "y" "Reading symbols from $escapedbinfile\.\.\.*" \ |
7cee1e54 PA |
243 | "$test (re-read)" |
244 | } | |
3453e7e4 | 245 | -re "Reading symbols from $escapedbinfile\.\.\.*$gdb_prompt $" { |
7cee1e54 PA |
246 | pass "$test" |
247 | } | |
1279f4ff AC |
248 | } |
249 | } | |
250 | ||
251 | # Verify that we can modify the variable "should_exit" in the | |
252 | # program. | |
253 | ||
27d3a1a2 | 254 | gdb_test_no_output "set should_exit=1" "after attach2, set should_exit" |
1279f4ff AC |
255 | |
256 | # Verify that the modification really happened. | |
257 | ||
1cf2f1b0 JK |
258 | gdb_breakpoint [gdb_get_line_number "postloop"] temporary |
259 | gdb_continue_to_breakpoint "postloop" ".* postloop .*" | |
1279f4ff AC |
260 | |
261 | # Allow the test process to exit, to cleanup after ourselves. | |
262 | ||
fda326dd | 263 | gdb_continue_to_end "after attach2, exit" |
1279f4ff AC |
264 | |
265 | # Make sure we don't leave a process around to confuse | |
266 | # the next test run (and prevent the compile by keeping | |
267 | # the text file busy), in case the "set should_exit" didn't | |
268 | # work. | |
8b1b3228 | 269 | |
2c8c5d37 PA |
270 | kill_wait_spawned_process $test_spawn_id |
271 | ||
272 | set test_spawn_id [spawn_wait_for_attach $binfile] | |
273 | set testpid [spawn_id_get_pid $test_spawn_id] | |
1279f4ff AC |
274 | |
275 | # Verify that we can attach to the process, and find its a.out | |
276 | # when we're cd'd to some directory that doesn't contain the | |
277 | # a.out. (We use the source path set by the "dir" command.) | |
278 | ||
a64d2530 | 279 | gdb_test "dir [standard_output_file {}]" "Source directories searched: .*" \ |
8b1b3228 | 280 | "set source path" |
1279f4ff | 281 | |
8b1b3228 AC |
282 | gdb_test "cd /tmp" "Working directory /tmp." \ |
283 | "cd away from process working directory" | |
1279f4ff AC |
284 | |
285 | # Explicitly flush out any knowledge of the previous attachment. | |
1279f4ff | 286 | |
8b1b3228 | 287 | set test "before attach3, flush symbols" |
6c95b8df | 288 | gdb_test_multiple "symbol-file" "$test" { |
8b1b3228 AC |
289 | -re "Discard symbol table from.*y or n. $" { |
290 | gdb_test "y" "No symbol file now." \ | |
291 | "$test" | |
1279f4ff | 292 | } |
8b1b3228 AC |
293 | -re "No symbol file now.*$gdb_prompt $" { |
294 | pass "$test" | |
1279f4ff AC |
295 | } |
296 | } | |
297 | ||
8b1b3228 AC |
298 | gdb_test "exec" "No executable file now." \ |
299 | "before attach3, flush exec" | |
300 | ||
301 | gdb_test "attach $testpid" \ | |
1586c8fb | 302 | "Attaching to process $testpid.*Reading symbols from $sysroot$escapedbinfile.*main.*at .*" \ |
8b1b3228 AC |
303 | "attach when process' a.out not in cwd" |
304 | ||
305 | set test "after attach3, exit" | |
dfb88a23 MS |
306 | gdb_test "kill" \ |
307 | "" \ | |
308 | "$test" \ | |
309 | "Kill the program being debugged.*y or n. $" \ | |
310 | "y" | |
1279f4ff AC |
311 | |
312 | # Another "don't leave a process around" | |
2c8c5d37 | 313 | kill_wait_spawned_process $test_spawn_id |
74cf1395 JM |
314 | } |
315 | ||
316 | proc do_call_attach_tests {} { | |
1279f4ff AC |
317 | global gdb_prompt |
318 | global binfile2 | |
319 | ||
2c8c5d37 PA |
320 | set test_spawn_id [spawn_wait_for_attach $binfile2] |
321 | set testpid [spawn_id_get_pid $test_spawn_id] | |
1279f4ff AC |
322 | |
323 | # Attach | |
324 | ||
8aed1c0d | 325 | gdb_test "file $binfile2" ".*" "load file" |
8b1b3228 AC |
326 | set test "attach call" |
327 | gdb_test_multiple "attach $testpid" "$test" { | |
328 | -re "warning: reading register.*I.*O error.*$gdb_prompt $" { | |
329 | fail "$test (read register error)" | |
1279f4ff AC |
330 | } |
331 | -re "Attaching to.*process $testpid.*libc.*$gdb_prompt $" { | |
8b1b3228 | 332 | pass "$test" |
1279f4ff AC |
333 | } |
334 | -re "Attaching to.*process $testpid.*\[Switching to thread $testpid\..*\].*$gdb_prompt $" { | |
8b1b3228 | 335 | pass "$test" |
1279f4ff AC |
336 | } |
337 | } | |
338 | ||
339 | # See if other registers are problems | |
340 | ||
8b1b3228 AC |
341 | set test "info other register" |
342 | gdb_test_multiple "i r r3" "$test" { | |
343 | -re "warning: reading register.*$gdb_prompt $" { | |
344 | fail "$test" | |
1279f4ff | 345 | } |
8b1b3228 AC |
346 | -re "r3.*$gdb_prompt $" { |
347 | pass "$test" | |
1279f4ff | 348 | } |
1279f4ff | 349 | } |
74cf1395 | 350 | |
1279f4ff AC |
351 | # Get rid of the process |
352 | ||
8b1b3228 | 353 | gdb_test "p should_exit = 1" |
fda326dd | 354 | gdb_continue_to_end |
1279f4ff AC |
355 | |
356 | # Be paranoid | |
357 | ||
2c8c5d37 | 358 | kill_wait_spawned_process $test_spawn_id |
74cf1395 JM |
359 | } |
360 | ||
ccdd1909 HZ |
361 | proc do_command_attach_tests {} { |
362 | global gdb_prompt | |
363 | global binfile | |
364 | global verbose | |
365 | global GDB | |
366 | global INTERNAL_GDBFLAGS | |
367 | global GDBFLAGS | |
368 | ||
369 | if ![isnative] then { | |
370 | unsupported "command attach test" | |
371 | return 0 | |
372 | } | |
373 | ||
2c8c5d37 PA |
374 | set test_spawn_id [spawn_wait_for_attach $binfile] |
375 | set testpid [spawn_id_get_pid $test_spawn_id] | |
ccdd1909 HZ |
376 | |
377 | gdb_exit | |
ccdd1909 | 378 | |
fef1b293 TT |
379 | set res [gdb_spawn_with_cmdline_opts \ |
380 | "-quiet -iex \"set height 0\" -iex \"set width 0\" --pid=$testpid"] | |
ccdd1909 | 381 | set test "starting with --pid" |
2c8c5d37 | 382 | gdb_test_multiple "" $test { |
ccdd1909 HZ |
383 | -re "Reading symbols from.*$gdb_prompt $" { |
384 | pass "$test" | |
385 | } | |
ccdd1909 HZ |
386 | } |
387 | ||
388 | # Get rid of the process | |
2c8c5d37 | 389 | kill_wait_spawned_process $test_spawn_id |
ccdd1909 HZ |
390 | } |
391 | ||
98880d46 PA |
392 | # Test ' gdb --pid PID -ex "run" '. GDB used to have a bug where |
393 | # "run" would run before the attach finished - PR17347. | |
394 | ||
395 | proc test_command_line_attach_run {} { | |
396 | global gdb_prompt | |
397 | global binfile | |
398 | ||
399 | if ![isnative] then { | |
400 | unsupported "commandline attach run test" | |
401 | return 0 | |
402 | } | |
403 | ||
404 | with_test_prefix "cmdline attach run" { | |
2c8c5d37 PA |
405 | set test_spawn_id [spawn_wait_for_attach $binfile] |
406 | set testpid [spawn_id_get_pid $test_spawn_id] | |
98880d46 PA |
407 | |
408 | set test "run to prompt" | |
409 | gdb_exit | |
410 | ||
411 | set res [gdb_spawn_with_cmdline_opts \ | |
fef1b293 | 412 | "-quiet -iex \"set height 0\" -iex \"set width 0\" --pid=$testpid -ex \"start\""] |
98880d46 PA |
413 | if { $res != 0} { |
414 | fail $test | |
2c8c5d37 | 415 | kill_wait_spawned_process $test_spawn_id |
98880d46 PA |
416 | return $res |
417 | } | |
418 | gdb_test_multiple "" $test { | |
419 | -re {Attaching to.*Start it from the beginning\? \(y or n\) } { | |
420 | pass $test | |
421 | } | |
422 | } | |
423 | ||
424 | send_gdb "y\n" | |
425 | ||
426 | set test "run to main" | |
427 | gdb_test_multiple "" $test { | |
428 | -re "Temporary breakpoint .* main .*$gdb_prompt $" { | |
429 | pass $test | |
430 | } | |
431 | } | |
432 | ||
433 | # Get rid of the process | |
2c8c5d37 | 434 | kill_wait_spawned_process $test_spawn_id |
98880d46 PA |
435 | } |
436 | } | |
74cf1395 JM |
437 | |
438 | # Start with a fresh gdb | |
1279f4ff | 439 | |
74cf1395 JM |
440 | gdb_exit |
441 | gdb_start | |
442 | gdb_reinitialize_dir $srcdir/$subdir | |
443 | gdb_load ${binfile} | |
444 | ||
445 | # This is a test of gdb's ability to attach to a running process. | |
1279f4ff | 446 | |
74cf1395 JM |
447 | do_attach_tests |
448 | ||
449 | # Test attaching when the target is inside a system call | |
1279f4ff | 450 | |
74cf1395 JM |
451 | gdb_exit |
452 | gdb_start | |
453 | ||
74cf1395 JM |
454 | gdb_reinitialize_dir $srcdir/$subdir |
455 | do_call_attach_tests | |
456 | ||
ccdd1909 HZ |
457 | # Test "gdb --pid" |
458 | ||
459 | do_command_attach_tests | |
460 | ||
98880d46 PA |
461 | test_command_line_attach_run |
462 | ||
74cf1395 | 463 | return 0 |