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b6ba6518 | 1 | # Copyright 1997, 1999 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 | |
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 | ||
5a2468f5 JM |
24 | if { ![isnative] } then { |
25 | continue | |
26 | } | |
27 | ||
74cf1395 JM |
28 | set prms_id 0 |
29 | set bug_id 0 | |
30 | ||
31 | set testfile "foll-fork" | |
32 | set srcfile ${testfile}.c | |
33 | set binfile ${objdir}/${subdir}/${testfile} | |
34 | ||
35 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { | |
36 | gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail." | |
37 | } | |
38 | ||
39 | ||
40 | ||
41 | # Until "set follow-fork-mode" and "catch fork" are implemented on | |
42 | # other targets... | |
43 | # | |
44 | if ![istarget "hppa*-hp-hpux*"] then { | |
45 | continue | |
46 | } | |
47 | ||
48 | proc default_fork_parent_follow {} { | |
49 | global gdb_prompt | |
50 | ||
51 | send_gdb "show follow\n" | |
52 | gdb_expect { | |
53 | -re "Debugger response to a program call of fork or vfork is \"parent\"..*$gdb_prompt $"\ | |
54 | {pass "default show parent follow, no catchpoints"} | |
55 | -re "$gdb_prompt $" {fail "default show parent follow, no catchpoints"} | |
56 | timeout {fail "(timeout) default show parent follow, no catchpoints"} | |
57 | } | |
58 | send_gdb "next 2\n" | |
59 | gdb_expect { | |
60 | -re "Detaching after fork from.*$gdb_prompt $"\ | |
61 | {pass "default parent follow, no catchpoints"} | |
62 | -re "$gdb_prompt $" {fail "default parent follow, no catchpoints"} | |
63 | timeout {fail "(timeout) default parent follow, no catchpoints" } | |
64 | } | |
65 | # The child has been detached; allow time for any output it might | |
66 | # generate to arrive, so that output doesn't get confused with | |
67 | # any expected debugger output from a subsequent testpoint. | |
68 | # | |
69 | exec sleep 1 | |
70 | } | |
71 | ||
72 | proc explicit_fork_parent_follow {} { | |
73 | global gdb_prompt | |
74 | ||
75 | send_gdb "set follow parent\n" | |
76 | gdb_expect { | |
77 | -re "$gdb_prompt $" {pass "set follow parent"} | |
78 | timeout {fail "(timeout) set follow parent"} | |
79 | } | |
80 | send_gdb "show follow\n" | |
81 | gdb_expect { | |
82 | -re "Debugger response to a program call of fork or vfork is \"parent\"..*$gdb_prompt $"\ | |
83 | {pass "explicit show parent follow, no catchpoints"} | |
84 | -re "$gdb_prompt $" {fail "explicit show parent follow, no catchpoints"} | |
85 | timeout {fail "(timeout) explicit show parent follow, no catchpoints"} | |
86 | } | |
87 | send_gdb "next 2\n" | |
88 | gdb_expect { | |
89 | -re "Detaching after fork from.*$gdb_prompt $"\ | |
90 | {pass "explicit parent follow, no catchpoints"} | |
91 | -re "$gdb_prompt $" {fail "explicit parent follow, no catchpoints"} | |
92 | timeout {fail "(timeout) explicit parent follow, no catchpoints"} | |
93 | } | |
94 | # The child has been detached; allow time for any output it might | |
95 | # generate to arrive, so that output doesn't get confused with | |
96 | # any expected debugger output from a subsequent testpoint. | |
97 | # | |
98 | exec sleep 1 | |
99 | } | |
100 | ||
101 | proc explicit_fork_child_follow {} { | |
102 | global gdb_prompt | |
103 | ||
104 | send_gdb "set follow child\n" | |
105 | gdb_expect { | |
106 | -re "$gdb_prompt $" {pass "set follow child"} | |
107 | timeout {fail "(timeout) set follow child"} | |
108 | } | |
109 | send_gdb "show follow\n" | |
110 | gdb_expect { | |
111 | -re "Debugger response to a program call of fork or vfork is \"child\"..*$gdb_prompt $"\ | |
112 | {pass "explicit show child follow, no catchpoints"} | |
113 | -re "$gdb_prompt $" {fail "explicit show child follow, no catchpoints"} | |
114 | timeout {fail "(timeout) explicit show child follow, no catchpoints"} | |
115 | } | |
116 | send_gdb "next 2\n" | |
117 | gdb_expect { | |
118 | -re "Detaching from program:.*Attaching after fork to.*$gdb_prompt $"\ | |
119 | {pass "explicit child follow, no catchpoints"} | |
120 | -re "$gdb_prompt $" {fail "explicit child follow, no catchpoints"} | |
121 | timeout {fail "(timeout) explicit child follow, no catchpoints"} | |
122 | } | |
123 | # The child has been detached; allow time for any output it might | |
124 | # generate to arrive, so that output doesn't get confused with | |
125 | # any gdb_expected debugger output from a subsequent testpoint. | |
126 | # | |
127 | exec sleep 1 | |
128 | } | |
129 | ||
130 | proc catch_fork_child_follow {} { | |
131 | global gdb_prompt | |
132 | ||
133 | send_gdb "catch fork\n" | |
134 | gdb_expect { | |
135 | -re "Catchpoint .*(fork).*$gdb_prompt $"\ | |
136 | {pass "explicit child follow, set catch fork"} | |
137 | -re "$gdb_prompt $" {fail "explicit child follow, set catch fork"} | |
138 | timeout {fail "(timeout) explicit child follow, set catch fork"} | |
139 | } | |
140 | ||
141 | # Verify that the catchpoint is mentioned in an "info breakpoints", | |
142 | # and further that the catchpoint mentions no process id. | |
143 | # | |
144 | send_gdb "info breakpoints\n" | |
145 | gdb_expect { | |
146 | -re ".*catch fork.*keep y.*$gdb_prompt $"\ | |
147 | {pass "info shows catchpoint without pid"} | |
148 | -re ".*catch fork.*process .*$gdb_prompt $"\ | |
149 | {fail "info shows catchpoint without pid"} | |
150 | -re "$gdb_prompt $" {fail "info shows catchpoint without pid"} | |
151 | timeout {fail "(timeout) info shows catchpoint without pid"} | |
152 | } | |
153 | ||
154 | send_gdb "continue\n" | |
155 | gdb_expect { | |
156 | -re "Catchpoint.*(forked process.*),.*in _fork_sys.*$gdb_prompt $"\ | |
157 | {pass "explicit child follow, catch fork"} | |
158 | -re "$gdb_prompt $" {fail "explicit child follow, catch fork"} | |
159 | timeout {fail "(timeout) explicit child follow, catch fork"} | |
160 | } | |
161 | ||
162 | # Verify that the catchpoint is mentioned in an "info breakpoints", | |
163 | # and further that the catchpoint managed to capture a process id. | |
164 | # | |
165 | send_gdb "info breakpoints\n" | |
166 | gdb_expect { | |
167 | -re ".*catch fork .*process \[0-9\]+.*$gdb_prompt $"\ | |
168 | {pass "info shows catchpoint pid"} | |
169 | -re "$gdb_prompt $" {fail "info shows catchpoint pid"} | |
170 | timeout {fail "(timeout) info shows catchpoint pid"} | |
171 | } | |
172 | ||
173 | send_gdb "set follow child\n" | |
174 | gdb_expect { | |
175 | -re "$gdb_prompt $" {pass "set follow child"} | |
176 | timeout {fail "(timeout) set follow child"} | |
177 | } | |
178 | send_gdb "tbreak 24\n" | |
179 | gdb_expect { | |
180 | -re "Breakpoint.*, line 24.*$gdb_prompt $"\ | |
181 | {pass "set follow child, tbreak"} | |
182 | -re "$gdb_prompt $" {fail "set follow child, tbreak"} | |
183 | timeout {fail "(timeout) set follow child, tbreak"} | |
184 | } | |
185 | send_gdb "continue\n" | |
186 | gdb_expect { | |
187 | -re ".*Detaching from program:.*Attaching after fork to.* at .*24.*$gdb_prompt $"\ | |
188 | {pass "set follow child, hit tbreak"} | |
189 | -re "$gdb_prompt $" {fail "set follow child, hit tbreak"} | |
190 | timeout {fail "(timeout) set follow child, hit tbreak"} | |
191 | } | |
192 | # The child has been detached; allow time for any output it might | |
193 | # generate to arrive, so that output doesn't get confused with | |
194 | # any expected debugger output from a subsequent testpoint. | |
195 | # | |
196 | exec sleep 1 | |
197 | send_gdb "delete breakpoints\n" | |
198 | gdb_expect { | |
199 | -re "Delete all breakpoints.*$" { | |
200 | send_gdb "y\n" | |
201 | gdb_expect { | |
202 | -re "$gdb_prompt $"\ | |
203 | {pass "set follow child, cleanup"} | |
204 | timeout {fail "(timeout) set follow child, cleanup"} | |
205 | } | |
206 | } | |
207 | -re "$gdb_prompt $" {fail "set follow child, cleanup"} | |
208 | timeout {fail "(timeout) set follow child, cleanup"} | |
209 | } | |
210 | } | |
211 | ||
212 | proc tcatch_fork_parent_follow {} { | |
213 | global gdb_prompt | |
214 | ||
215 | send_gdb "catch fork\n" | |
216 | gdb_expect { | |
217 | -re "Catchpoint .*(fork).*$gdb_prompt $"\ | |
218 | {pass "explicit parent follow, set tcatch fork"} | |
219 | -re "$gdb_prompt $" {fail "explicit parent follow, set tcatch fork"} | |
220 | timeout {fail "(timeout) explicit parent follow, set tcatch fork"} | |
221 | } | |
222 | # ??rehrauer: I don't yet know how to get the id of the tcatch | |
223 | # via this script, so that I can add a -do list to it. For now, | |
224 | # do the follow stuff after the catch happens. | |
225 | ||
226 | send_gdb "continue\n" | |
227 | gdb_expect { | |
228 | -re ".*in _fork_sys.*$gdb_prompt $"\ | |
229 | {pass "explicit parent follow, tcatch fork"} | |
230 | -re "$gdb_prompt $" {fail "explicit parent follow, tcatch fork"} | |
231 | timeout {fail "(timeout) explicit parent follow, tcatch fork"} | |
232 | } | |
233 | send_gdb "set follow parent\n" | |
234 | gdb_expect { | |
235 | -re "$gdb_prompt $" {pass "set follow parent"} | |
236 | timeout {fail "(timeout) set follow parent"} | |
237 | } | |
238 | send_gdb "tbreak 24\n" | |
239 | gdb_expect { | |
240 | -re "Breakpoint.*, line 24.*$gdb_prompt $"\ | |
241 | {pass "set follow parent, tbreak"} | |
242 | -re "$gdb_prompt $" {fail "set follow parent, tbreak"} | |
243 | timeout {fail "(timeout) set follow child, tbreak"} | |
244 | } | |
245 | send_gdb "continue\n" | |
246 | gdb_expect { | |
247 | -re ".*Detaching after fork from.* at .*24.*$gdb_prompt $"\ | |
248 | {pass "set follow parent, hit tbreak"} | |
249 | -re "$gdb_prompt $" {fail "set follow parent, hit tbreak"} | |
250 | timeout {fail "(timeout) set follow parent, hit tbreak"} | |
251 | } | |
252 | # The child has been detached; allow time for any output it might | |
253 | # generate to arrive, so that output doesn't get confused with | |
254 | # any expected debugger output from a subsequent testpoint. | |
255 | # | |
256 | exec sleep 1 | |
257 | send_gdb "delete breakpoints\n" | |
258 | gdb_expect { | |
259 | -re "Delete all breakpoints.*$" { | |
260 | send_gdb "y\n" | |
261 | gdb_expect { | |
262 | -re "$gdb_prompt $"\ | |
263 | {pass "set follow parent, cleanup"} | |
264 | timeout {fail "(timeout) set follow parent, cleanup"} | |
265 | } | |
266 | } | |
267 | -re "$gdb_prompt $" {fail "set follow parent, cleanup"} | |
268 | timeout {fail "(timeout) set follow parent, cleanup"} | |
269 | } | |
270 | } | |
271 | ||
272 | proc do_fork_tests {} { | |
273 | global gdb_prompt | |
274 | ||
275 | # Verify that help is available for "set follow-fork-mode". | |
276 | # | |
277 | send_gdb "help set follow-fork-mode\n" | |
278 | gdb_expect { | |
279 | -re "Set debugger response to a program call of fork or vfork..* | |
280 | A fork or vfork creates a new process. follow-fork-mode can be:.* | |
281 | .*parent - the original process is debugged after a fork.* | |
282 | .*child - the new process is debugged after a fork.* | |
283 | .*ask - the debugger will ask for one of the above choices.* | |
284 | For \"parent\" or \"child\", the unfollowed process will run free..* | |
285 | By default, the debugger will follow the parent process..*$gdb_prompt $"\ | |
286 | { pass "help set follow" } | |
287 | -re "$gdb_prompt $" { fail "help set follow" } | |
288 | timeout { fail "(timeout) help set follow" } | |
289 | } | |
290 | ||
291 | # Verify that we can set follow-fork-mode, using an abbreviation | |
292 | # for both the flag and its value. | |
293 | # | |
294 | send_gdb "set follow ch\n" | |
295 | send_gdb "show fol\n" | |
296 | gdb_expect { | |
297 | -re "Debugger response to a program call of fork or vfork is \"child\".*$gdb_prompt $"\ | |
298 | {pass "set follow, using abbreviations"} | |
299 | timeout {fail "(timeout) set follow, using abbreviations"} | |
300 | } | |
301 | ||
302 | # Verify that we cannot set follow-fork-mode to nonsense. | |
303 | # | |
304 | send_gdb "set follow chork\n" | |
305 | gdb_expect { | |
306 | -re "Undefined item: \"chork\".*$gdb_prompt $"\ | |
307 | {pass "set follow to nonsense is prohibited"} | |
308 | -re "$gdb_prompt $" {fail "set follow to nonsense is prohibited"} | |
309 | timeout {fail "(timeout) set follow to nonsense is prohibited"} | |
310 | } | |
311 | send_gdb "set follow parent\n" | |
312 | gdb_expect { | |
313 | -re "$gdb_prompt $" {pass "set follow to nonsense is prohibited (reset parent)"} | |
314 | timeout {fail "set follow to nonsense is prohibited (reset parent)"} | |
315 | } | |
316 | ||
317 | # Test the default behaviour, which is to follow the parent of a | |
318 | # fork, and detach from the child. Do this without catchpoints. | |
319 | # | |
320 | if [runto_main] then { default_fork_parent_follow } | |
321 | ||
322 | # Test the ability to explicitly follow the parent of a fork, and | |
323 | # detach from the child. Do this without catchpoints. | |
324 | # | |
325 | if [runto_main] then { explicit_fork_parent_follow } | |
326 | ||
327 | # Test the ability to follow the child of a fork, and detach from | |
328 | # the parent. Do this without catchpoints. | |
329 | # | |
330 | if [runto_main] then { explicit_fork_child_follow } | |
331 | ||
332 | # Test the ability to follow both child and parent of a fork. Do | |
333 | # this without catchpoints. | |
334 | # ??rehrauer: NYI. Will add testpoints here when implemented. | |
335 | # | |
336 | ||
337 | # Test the ability to have the debugger ask the user at fork-time | |
338 | # whether to follow the parent, child or both. Do this without | |
339 | # catchpoints. | |
340 | # ??rehrauer: NYI. Will add testpoints here when implemented. | |
341 | # | |
342 | ||
343 | # Test the ability to catch a fork, specify that the child be | |
344 | # followed, and continue. Make the catchpoint permanent. | |
345 | # | |
346 | if [runto_main] then { catch_fork_child_follow } | |
347 | ||
348 | # Test the ability to catch a fork, specify via a -do clause that | |
349 | # the parent be followed, and continue. Make the catchpoint temporary. | |
350 | # | |
351 | if [runto_main] then { tcatch_fork_parent_follow } | |
352 | } | |
353 | ||
354 | # Start with a fresh gdb | |
355 | ||
356 | gdb_exit | |
357 | gdb_start | |
358 | gdb_reinitialize_dir $srcdir/$subdir | |
359 | gdb_load ${binfile} | |
360 | ||
361 | ||
362 | # This is a test of gdb's ability to follow the parent, child or both | |
363 | # parent and child of a Unix fork() system call. | |
364 | # | |
365 | do_fork_tests | |
366 | ||
367 | return 0 |