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1 | # Copyright (C) 1997 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 | # are we on a target board | |
28 | if ![isnative] then { | |
29 | return | |
30 | } | |
31 | ||
32 | if {![istarget "hppa*-*-hpux10.30"] && ![istarget "hppa*-*-hpux11.*"]} { | |
33 | #setup_xfail "*-*.*" | |
34 | return 0 | |
35 | } | |
36 | ||
37 | set testfile "foll-fork" | |
38 | set srcfile ${testfile}.c | |
39 | set binfile ${objdir}/${subdir}/${testfile} | |
40 | ||
41 | # build the first test case | |
42 | #if { [compile "-g ${srcdir}/${subdir}/${srcfile} -o ${binfile} "] != "" } { | |
43 | # execute_anywhere "rm -f ${objdir}/${subdir}/${testfile}.tmp" | |
44 | # built the second test case since we can't use prototypes | |
45 | # warning "Prototypes not supported, rebuilding with -DNO_PROTOTYPES" | |
46 | # execute_anywhere "echo set prototypes 0 > ${objdir}/${subdir}/${testfile}.tmp" | |
47 | # if { [compile "-g -DNO_PROTOTYPES ${srcdir}/${subdir}/${srcfile} -o ${binfile} "] != "" } { | |
48 | # perror "Couldn't compile ${testfile}.c" | |
49 | # return -1 | |
50 | # } | |
51 | #} | |
52 | ||
53 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { | |
54 | gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail." | |
55 | } | |
56 | ||
57 | ||
58 | ||
59 | # Until "set follow-fork-mode" and "catch fork" are implemented on | |
60 | # other targets... | |
61 | # | |
62 | if ![istarget "hppa*-hp-hpux*"] then { | |
63 | setup_xfail "*-*-*" | |
64 | } | |
65 | ||
66 | proc default_fork_parent_follow {} { | |
67 | global gdb_prompt | |
68 | ||
69 | send_gdb "show follow\n" | |
70 | gdb_expect { | |
71 | -re "Debugger response to a program call of fork or vfork is \"parent\"..*$gdb_prompt $"\ | |
72 | {pass "default show parent follow, no catchpoints"} | |
73 | -re "$gdb_prompt $" {fail "default show parent follow, no catchpoints"} | |
74 | timeout {fail "(timeout) default show parent follow, no catchpoints"} | |
75 | } | |
76 | send_gdb "next 2\n" | |
77 | gdb_expect { | |
78 | -re "Detaching after fork from.*$gdb_prompt $"\ | |
79 | {pass "default parent follow, no catchpoints"} | |
80 | -re "$gdb_prompt $" {fail "default parent follow, no catchpoints"} | |
81 | timeout {fail "(timeout) default parent follow, no catchpoints" } | |
82 | } | |
83 | # The child has been detached; allow time for any output it might | |
84 | # generate to arrive, so that output doesn't get confused with | |
85 | # any expected debugger output from a subsequent testpoint. | |
86 | # | |
87 | exec sleep 1 | |
88 | } | |
89 | ||
90 | proc explicit_fork_parent_follow {} { | |
91 | global gdb_prompt | |
92 | ||
93 | send_gdb "set follow parent\n" | |
94 | gdb_expect { | |
95 | -re "$gdb_prompt $" {pass "set follow parent"} | |
96 | timeout {fail "(timeout) set follow parent"} | |
97 | } | |
98 | send_gdb "show follow\n" | |
99 | gdb_expect { | |
100 | -re "Debugger response to a program call of fork or vfork is \"parent\"..*$gdb_prompt $"\ | |
101 | {pass "explicit show parent follow, no catchpoints"} | |
102 | -re "$gdb_prompt $" {fail "explicit show parent follow, no catchpoints"} | |
103 | timeout {fail "(timeout) explicit show parent follow, no catchpoints"} | |
104 | } | |
105 | send_gdb "next 2\n" | |
106 | gdb_expect { | |
107 | -re "Detaching after fork from.*$gdb_prompt $"\ | |
108 | {pass "explicit parent follow, no catchpoints"} | |
109 | -re "$gdb_prompt $" {fail "explicit parent follow, no catchpoints"} | |
110 | timeout {fail "(timeout) explicit parent follow, no catchpoints"} | |
111 | } | |
112 | # The child has been detached; allow time for any output it might | |
113 | # generate to arrive, so that output doesn't get confused with | |
114 | # any expected debugger output from a subsequent testpoint. | |
115 | # | |
116 | exec sleep 1 | |
117 | } | |
118 | ||
119 | proc explicit_fork_child_follow {} { | |
120 | global gdb_prompt | |
121 | ||
122 | send_gdb "set follow child\n" | |
123 | gdb_expect { | |
124 | -re "$gdb_prompt $" {pass "set follow child"} | |
125 | timeout {fail "(timeout) set follow child"} | |
126 | } | |
127 | send_gdb "show follow\n" | |
128 | gdb_expect { | |
129 | -re "Debugger response to a program call of fork or vfork is \"child\"..*$gdb_prompt $"\ | |
130 | {pass "explicit show child follow, no catchpoints"} | |
131 | -re "$gdb_prompt $" {fail "explicit show child follow, no catchpoints"} | |
132 | timeout {fail "(timeout) explicit show child follow, no catchpoints"} | |
133 | } | |
134 | send_gdb "next 2\n" | |
135 | gdb_expect { | |
136 | -re "Detaching from program:.*Attaching after fork to.*$gdb_prompt $"\ | |
137 | {pass "explicit child follow, no catchpoints"} | |
138 | -re "$gdb_prompt $" {fail "explicit child follow, no catchpoints"} | |
139 | timeout {fail "(timeout) explicit child follow, no catchpoints"} | |
140 | } | |
141 | # The child has been detached; allow time for any output it might | |
142 | # generate to arrive, so that output doesn't get confused with | |
143 | # any gdb_expected debugger output from a subsequent testpoint. | |
144 | # | |
145 | exec sleep 1 | |
146 | } | |
147 | ||
148 | proc catch_fork_child_follow {} { | |
149 | global gdb_prompt | |
150 | ||
151 | send_gdb "catch fork\n" | |
152 | gdb_expect { | |
153 | -re "Catchpoint .*(fork).*$gdb_prompt $"\ | |
154 | {pass "explicit child follow, set catch fork"} | |
155 | -re "$gdb_prompt $" {fail "explicit child follow, set catch fork"} | |
156 | timeout {fail "(timeout) explicit child follow, set catch fork"} | |
157 | } | |
158 | ||
159 | # Verify that the catchpoint is mentioned in an "info breakpoints", | |
160 | # and further that the catchpoint mentions no process id. | |
161 | # | |
162 | send_gdb "info breakpoints\n" | |
163 | gdb_expect { | |
164 | -re ".*catch fork.*keep y.*$gdb_prompt $"\ | |
165 | {pass "info shows catchpoint without pid"} | |
166 | -re ".*catch fork.*process .*$gdb_prompt $"\ | |
167 | {fail "info shows catchpoint without pid"} | |
168 | -re "$gdb_prompt $" {fail "info shows catchpoint without pid"} | |
169 | timeout {fail "(timeout) info shows catchpoint without pid"} | |
170 | } | |
171 | ||
172 | send_gdb "continue\n" | |
173 | gdb_expect { | |
174 | -re "Catchpoint.*(forked process.*),.*in _fork_sys.*$gdb_prompt $"\ | |
175 | {pass "explicit child follow, catch fork"} | |
176 | -re "$gdb_prompt $" {fail "explicit child follow, catch fork"} | |
177 | timeout {fail "(timeout) explicit child follow, catch fork"} | |
178 | } | |
179 | ||
180 | # Verify that the catchpoint is mentioned in an "info breakpoints", | |
181 | # and further that the catchpoint managed to capture a process id. | |
182 | # | |
183 | send_gdb "info breakpoints\n" | |
184 | gdb_expect { | |
185 | -re ".*catch fork .*process \[0-9\]+.*$gdb_prompt $"\ | |
186 | {pass "info shows catchpoint pid"} | |
187 | -re "$gdb_prompt $" {fail "info shows catchpoint pid"} | |
188 | timeout {fail "(timeout) info shows catchpoint pid"} | |
189 | } | |
190 | ||
191 | send_gdb "set follow child\n" | |
192 | gdb_expect { | |
193 | -re "$gdb_prompt $" {pass "set follow child"} | |
194 | timeout {fail "(timeout) set follow child"} | |
195 | } | |
196 | send_gdb "tbreak 15\n" | |
197 | gdb_expect { | |
198 | -re "Breakpoint.*, line 15.*$gdb_prompt $"\ | |
199 | {pass "set follow child, tbreak"} | |
200 | -re "$gdb_prompt $" {fail "set follow child, tbreak"} | |
201 | timeout {fail "(timeout) set follow child, tbreak"} | |
202 | } | |
203 | send_gdb "continue\n" | |
204 | gdb_expect { | |
205 | -re ".*Detaching from program:.*Attaching after fork to.* at .*15.*$gdb_prompt $"\ | |
206 | {pass "set follow child, hit tbreak"} | |
207 | -re "$gdb_prompt $" {fail "set follow child, hit tbreak"} | |
208 | timeout {fail "(timeout) set follow child, hit tbreak"} | |
209 | } | |
210 | # The child has been detached; allow time for any output it might | |
211 | # generate to arrive, so that output doesn't get confused with | |
212 | # any expected debugger output from a subsequent testpoint. | |
213 | # | |
214 | exec sleep 1 | |
215 | send_gdb "delete breakpoints\n" | |
216 | gdb_expect { | |
217 | -re "Delete all breakpoints.*$" { | |
218 | send_gdb "y\n" | |
219 | gdb_expect { | |
220 | -re "$gdb_prompt $"\ | |
221 | {pass "set follow child, cleanup"} | |
222 | timeout {fail "(timeout) set follow child, cleanup"} | |
223 | } | |
224 | } | |
225 | -re "$gdb_prompt $" {fail "set follow child, cleanup"} | |
226 | timeout {fail "(timeout) set follow child, cleanup"} | |
227 | } | |
228 | } | |
229 | ||
230 | proc tcatch_fork_parent_follow {} { | |
231 | global gdb_prompt | |
232 | ||
233 | send_gdb "catch fork\n" | |
234 | gdb_expect { | |
235 | -re "Catchpoint .*(fork).*$gdb_prompt $"\ | |
236 | {pass "explicit parent follow, set tcatch fork"} | |
237 | -re "$gdb_prompt $" {fail "explicit parent follow, set tcatch fork"} | |
238 | timeout {fail "(timeout) explicit parent follow, set tcatch fork"} | |
239 | } | |
240 | # ??rehrauer: I don't yet know how to get the id of the tcatch | |
241 | # via this script, so that I can add a -do list to it. For now, | |
242 | # do the follow stuff after the catch happens. | |
243 | ||
244 | send_gdb "continue\n" | |
245 | gdb_expect { | |
246 | -re ".*in _fork_sys.*$gdb_prompt $"\ | |
247 | {pass "explicit parent follow, tcatch fork"} | |
248 | -re "$gdb_prompt $" {fail "explicit parent follow, tcatch fork"} | |
249 | timeout {fail "(timeout) explicit parent follow, tcatch fork"} | |
250 | } | |
251 | send_gdb "set follow parent\n" | |
252 | gdb_expect { | |
253 | -re "$gdb_prompt $" {pass "set follow parent"} | |
254 | timeout {fail "(timeout) set follow parent"} | |
255 | } | |
256 | send_gdb "tbreak 15\n" | |
257 | gdb_expect { | |
258 | -re "Breakpoint.*, line 15.*$gdb_prompt $"\ | |
259 | {pass "set follow parent, tbreak"} | |
260 | -re "$gdb_prompt $" {fail "set follow parent, tbreak"} | |
261 | timeout {fail "(timeout) set follow child, tbreak"} | |
262 | } | |
263 | send_gdb "continue\n" | |
264 | gdb_expect { | |
265 | -re ".*Detaching after fork from.* at .*15.*$gdb_prompt $"\ | |
266 | {pass "set follow parent, hit tbreak"} | |
267 | -re "$gdb_prompt $" {fail "set follow parent, hit tbreak"} | |
268 | timeout {fail "(timeout) set follow parent, hit tbreak"} | |
269 | } | |
270 | # The child has been detached; allow time for any output it might | |
271 | # generate to arrive, so that output doesn't get confused with | |
272 | # any expected debugger output from a subsequent testpoint. | |
273 | # | |
274 | exec sleep 1 | |
275 | send_gdb "delete breakpoints\n" | |
276 | gdb_expect { | |
277 | -re "Delete all breakpoints.*$" { | |
278 | send_gdb "y\n" | |
279 | gdb_expect { | |
280 | -re "$gdb_prompt $"\ | |
281 | {pass "set follow parent, cleanup"} | |
282 | timeout {fail "(timeout) set follow parent, cleanup"} | |
283 | } | |
284 | } | |
285 | -re "$gdb_prompt $" {fail "set follow parent, cleanup"} | |
286 | timeout {fail "(timeout) set follow parent, cleanup"} | |
287 | } | |
288 | } | |
289 | ||
290 | proc do_fork_tests {} { | |
291 | global gdb_prompt | |
292 | ||
293 | # Verify that help is available for "set follow-fork-mode". | |
294 | # | |
295 | send_gdb "help set follow-fork-mode\n" | |
296 | gdb_expect { | |
297 | -re "Set debugger response to a program call of fork or vfork..* | |
298 | A fork or vfork creates a new process. follow-fork-mode can be:.* | |
299 | .*parent - the original process is debugged after a fork.* | |
300 | .*child - the new process is debugged after a fork.* | |
301 | .*ask - the debugger will ask for one of the above choices.* | |
302 | For \"parent\" or \"child\", the unfollowed process will run free..* | |
303 | By default, the debugger will follow the parent process..*$gdb_prompt $"\ | |
304 | { pass "help set follow" } | |
305 | -re "$gdb_prompt $" { fail "help set follow" } | |
306 | timeout { fail "(timeout) help set follow" } | |
307 | } | |
308 | ||
309 | # Verify that we can set follow-fork-mode, using an abbreviation | |
310 | # for both the flag and its value. | |
311 | # | |
312 | send_gdb "set follow ch\n" | |
313 | send_gdb "show fol\n" | |
314 | gdb_expect { | |
315 | -re "Debugger response to a program call of fork or vfork is \"child\".*$gdb_prompt $"\ | |
316 | {pass "set follow, using abbreviations"} | |
317 | timeout {fail "(timeout) set follow, using abbreviations"} | |
318 | } | |
319 | ||
320 | # Verify that we cannot set follow-fork-mode to nonsense. | |
321 | # | |
322 | send_gdb "set follow chork\n" | |
323 | gdb_expect { | |
324 | -re "Undefined item: \"chork\".*$gdb_prompt $"\ | |
325 | {pass "set follow to nonsense is prohibited"} | |
326 | -re "$gdb_prompt $" {fail "set follow to nonsense is prohibited"} | |
327 | timeout {fail "(timeout) set follow to nonsense is prohibited"} | |
328 | } | |
329 | send_gdb "set follow parent\n" | |
330 | gdb_expect { | |
331 | -re "$gdb_prompt $" {pass "set follow to nonsense is prohibited (reset parent)"} | |
332 | timeout {fail "set follow to nonsense is prohibited (reset parent)"} | |
333 | } | |
334 | ||
335 | # Test the default behaviour, which is to follow the parent of a | |
336 | # fork, and detach from the child. Do this without catchpoints. | |
337 | # | |
338 | if [runto_main] then { default_fork_parent_follow } | |
339 | ||
340 | # Test the ability to explicitly follow the parent of a fork, and | |
341 | # detach from the child. Do this without catchpoints. | |
342 | # | |
343 | if [runto_main] then { explicit_fork_parent_follow } | |
344 | ||
345 | # Test the ability to follow the child of a fork, and detach from | |
346 | # the parent. Do this without catchpoints. | |
347 | # | |
348 | if [runto_main] then { explicit_fork_child_follow } | |
349 | ||
350 | # Test the ability to follow both child and parent of a fork. Do | |
351 | # this without catchpoints. | |
352 | # ??rehrauer: NYI. Will add testpoints here when implemented. | |
353 | # | |
354 | ||
355 | # Test the ability to have the debugger ask the user at fork-time | |
356 | # whether to follow the parent, child or both. Do this without | |
357 | # catchpoints. | |
358 | # ??rehrauer: NYI. Will add testpoints here when implemented. | |
359 | # | |
360 | ||
361 | # Test the ability to catch a fork, specify that the child be | |
362 | # followed, and continue. Make the catchpoint permanent. | |
363 | # | |
364 | if [runto_main] then { catch_fork_child_follow } | |
365 | ||
366 | # Test the ability to catch a fork, specify via a -do clause that | |
367 | # the parent be followed, and continue. Make the catchpoint temporary. | |
368 | # | |
369 | if [runto_main] then { tcatch_fork_parent_follow } | |
370 | } | |
371 | ||
372 | # Start with a fresh gdb | |
373 | ||
374 | gdb_exit | |
375 | gdb_start | |
376 | gdb_reinitialize_dir $srcdir/$subdir | |
377 | gdb_load ${binfile} | |
378 | ||
379 | ||
380 | # This is a test of gdb's ability to follow the parent, child or both | |
381 | # parent and child of a Unix fork() system call. | |
382 | # | |
383 | do_fork_tests | |
384 | ||
385 | return 0 |