1 # Copyright (C) 1997 Free Software Foundation, Inc.
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.
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.
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. */
17 # Please email any bugs, comments, and/or additions to this file to:
18 # bug-gdb@prep.ai.mit.edu
24 if { ![isnative] } then {
31 set testfile "foll-fork"
32 set srcfile ${testfile}.c
33 set binfile ${objdir}/${subdir}/${testfile}
35 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
36 gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
41 # Until "set follow-fork-mode" and "catch fork" are implemented on
44 if ![istarget "hppa*-hp-hpux*"] then {
48 proc default_fork_parent_follow {} {
51 send_gdb "show follow\n"
53 -re "Debugger response to a program call of fork or vfork is \"parent\"..*$gdb_prompt $"\
54 {pass "default show parent follow, no catchpoints"}
55 -re "$gdb_prompt $" {fail "default show parent follow, no catchpoints"}
56 timeout {fail "(timeout) default show parent follow, no catchpoints"}
60 -re "Detaching after fork from.*$gdb_prompt $"\
61 {pass "default parent follow, no catchpoints"}
62 -re "$gdb_prompt $" {fail "default parent follow, no catchpoints"}
63 timeout {fail "(timeout) default parent follow, no catchpoints" }
65 # The child has been detached; allow time for any output it might
66 # generate to arrive, so that output doesn't get confused with
67 # any expected debugger output from a subsequent testpoint.
72 proc explicit_fork_parent_follow {} {
75 send_gdb "set follow parent\n"
77 -re "$gdb_prompt $" {pass "set follow parent"}
78 timeout {fail "(timeout) set follow parent"}
80 send_gdb "show follow\n"
82 -re "Debugger response to a program call of fork or vfork is \"parent\"..*$gdb_prompt $"\
83 {pass "explicit show parent follow, no catchpoints"}
84 -re "$gdb_prompt $" {fail "explicit show parent follow, no catchpoints"}
85 timeout {fail "(timeout) explicit show parent follow, no catchpoints"}
89 -re "Detaching after fork from.*$gdb_prompt $"\
90 {pass "explicit parent follow, no catchpoints"}
91 -re "$gdb_prompt $" {fail "explicit parent follow, no catchpoints"}
92 timeout {fail "(timeout) explicit parent follow, no catchpoints"}
94 # The child has been detached; allow time for any output it might
95 # generate to arrive, so that output doesn't get confused with
96 # any expected debugger output from a subsequent testpoint.
101 proc explicit_fork_child_follow {} {
104 send_gdb "set follow child\n"
106 -re "$gdb_prompt $" {pass "set follow child"}
107 timeout {fail "(timeout) set follow child"}
109 send_gdb "show follow\n"
111 -re "Debugger response to a program call of fork or vfork is \"child\"..*$gdb_prompt $"\
112 {pass "explicit show child follow, no catchpoints"}
113 -re "$gdb_prompt $" {fail "explicit show child follow, no catchpoints"}
114 timeout {fail "(timeout) explicit show child follow, no catchpoints"}
118 -re "Detaching from program:.*Attaching after fork to.*$gdb_prompt $"\
119 {pass "explicit child follow, no catchpoints"}
120 -re "$gdb_prompt $" {fail "explicit child follow, no catchpoints"}
121 timeout {fail "(timeout) explicit child follow, no catchpoints"}
123 # The child has been detached; allow time for any output it might
124 # generate to arrive, so that output doesn't get confused with
125 # any gdb_expected debugger output from a subsequent testpoint.
130 proc catch_fork_child_follow {} {
133 send_gdb "catch fork\n"
135 -re "Catchpoint .*(fork).*$gdb_prompt $"\
136 {pass "explicit child follow, set catch fork"}
137 -re "$gdb_prompt $" {fail "explicit child follow, set catch fork"}
138 timeout {fail "(timeout) explicit child follow, set catch fork"}
141 # Verify that the catchpoint is mentioned in an "info breakpoints",
142 # and further that the catchpoint mentions no process id.
144 send_gdb "info breakpoints\n"
146 -re ".*catch fork.*keep y.*$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 $" {fail "info shows catchpoint without pid"}
151 timeout {fail "(timeout) info shows catchpoint without pid"}
154 send_gdb "continue\n"
156 -re "Catchpoint.*(forked process.*),.*in _fork_sys.*$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"}
162 # Verify that the catchpoint is mentioned in an "info breakpoints",
163 # and further that the catchpoint managed to capture a process id.
165 send_gdb "info breakpoints\n"
167 -re ".*catch fork .*process \[0-9\]+.*$gdb_prompt $"\
168 {pass "info shows catchpoint pid"}
169 -re "$gdb_prompt $" {fail "info shows catchpoint pid"}
170 timeout {fail "(timeout) info shows catchpoint pid"}
173 send_gdb "set follow child\n"
175 -re "$gdb_prompt $" {pass "set follow child"}
176 timeout {fail "(timeout) set follow child"}
178 send_gdb "tbreak 24\n"
180 -re "Breakpoint.*, line 24.*$gdb_prompt $"\
181 {pass "set follow child, tbreak"}
182 -re "$gdb_prompt $" {fail "set follow child, tbreak"}
183 timeout {fail "(timeout) set follow child, tbreak"}
185 send_gdb "continue\n"
187 -re ".*Detaching from program:.*Attaching after fork to.* at .*24.*$gdb_prompt $"\
188 {pass "set follow child, hit tbreak"}
189 -re "$gdb_prompt $" {fail "set follow child, hit tbreak"}
190 timeout {fail "(timeout) set follow child, hit tbreak"}
192 # The child has been detached; allow time for any output it might
193 # generate to arrive, so that output doesn't get confused with
194 # any expected debugger output from a subsequent testpoint.
197 send_gdb "delete breakpoints\n"
199 -re "Delete all breakpoints.*$" {
203 {pass "set follow child, cleanup"}
204 timeout {fail "(timeout) set follow child, cleanup"}
207 -re "$gdb_prompt $" {fail "set follow child, cleanup"}
208 timeout {fail "(timeout) set follow child, cleanup"}
212 proc tcatch_fork_parent_follow {} {
215 send_gdb "catch fork\n"
217 -re "Catchpoint .*(fork).*$gdb_prompt $"\
218 {pass "explicit parent follow, set tcatch fork"}
219 -re "$gdb_prompt $" {fail "explicit parent follow, set tcatch fork"}
220 timeout {fail "(timeout) explicit parent follow, set tcatch fork"}
222 # ??rehrauer: I don't yet know how to get the id of the tcatch
223 # via this script, so that I can add a -do list to it. For now,
224 # do the follow stuff after the catch happens.
226 send_gdb "continue\n"
228 -re ".*in _fork_sys.*$gdb_prompt $"\
229 {pass "explicit parent follow, tcatch fork"}
230 -re "$gdb_prompt $" {fail "explicit parent follow, tcatch fork"}
231 timeout {fail "(timeout) explicit parent follow, tcatch fork"}
233 send_gdb "set follow parent\n"
235 -re "$gdb_prompt $" {pass "set follow parent"}
236 timeout {fail "(timeout) set follow parent"}
238 send_gdb "tbreak 24\n"
240 -re "Breakpoint.*, line 24.*$gdb_prompt $"\
241 {pass "set follow parent, tbreak"}
242 -re "$gdb_prompt $" {fail "set follow parent, tbreak"}
243 timeout {fail "(timeout) set follow child, tbreak"}
245 send_gdb "continue\n"
247 -re ".*Detaching after fork from.* at .*24.*$gdb_prompt $"\
248 {pass "set follow parent, hit tbreak"}
249 -re "$gdb_prompt $" {fail "set follow parent, hit tbreak"}
250 timeout {fail "(timeout) set follow parent, hit tbreak"}
252 # The child has been detached; allow time for any output it might
253 # generate to arrive, so that output doesn't get confused with
254 # any expected debugger output from a subsequent testpoint.
257 send_gdb "delete breakpoints\n"
259 -re "Delete all breakpoints.*$" {
263 {pass "set follow parent, cleanup"}
264 timeout {fail "(timeout) set follow parent, cleanup"}
267 -re "$gdb_prompt $" {fail "set follow parent, cleanup"}
268 timeout {fail "(timeout) set follow parent, cleanup"}
272 proc do_fork_tests {} {
275 # Verify that help is available for "set follow-fork-mode".
277 send_gdb "help set follow-fork-mode\n"
279 -re "Set debugger response to a program call of fork or vfork..*
280 A fork or vfork creates a new process. follow-fork-mode can be:.*
281 .*parent - the original process is debugged after a fork.*
282 .*child - the new process is debugged after a fork.*
283 .*ask - the debugger will ask for one of the above choices.*
284 For \"parent\" or \"child\", the unfollowed process will run free..*
285 By default, the debugger will follow the parent process..*$gdb_prompt $"\
286 { pass "help set follow" }
287 -re "$gdb_prompt $" { fail "help set follow" }
288 timeout { fail "(timeout) help set follow" }
291 # Verify that we can set follow-fork-mode, using an abbreviation
292 # for both the flag and its value.
294 send_gdb "set follow ch\n"
295 send_gdb "show fol\n"
297 -re "Debugger response to a program call of fork or vfork is \"child\".*$gdb_prompt $"\
298 {pass "set follow, using abbreviations"}
299 timeout {fail "(timeout) set follow, using abbreviations"}
302 # Verify that we cannot set follow-fork-mode to nonsense.
304 send_gdb "set follow chork\n"
306 -re "Undefined item: \"chork\".*$gdb_prompt $"\
307 {pass "set follow to nonsense is prohibited"}
308 -re "$gdb_prompt $" {fail "set follow to nonsense is prohibited"}
309 timeout {fail "(timeout) set follow to nonsense is prohibited"}
311 send_gdb "set follow parent\n"
313 -re "$gdb_prompt $" {pass "set follow to nonsense is prohibited (reset parent)"}
314 timeout {fail "set follow to nonsense is prohibited (reset parent)"}
317 # Test the default behaviour, which is to follow the parent of a
318 # fork, and detach from the child. Do this without catchpoints.
320 if [runto_main] then { default_fork_parent_follow }
322 # Test the ability to explicitly follow the parent of a fork, and
323 # detach from the child. Do this without catchpoints.
325 if [runto_main] then { explicit_fork_parent_follow }
327 # Test the ability to follow the child of a fork, and detach from
328 # the parent. Do this without catchpoints.
330 if [runto_main] then { explicit_fork_child_follow }
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.
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
340 # ??rehrauer: NYI. Will add testpoints here when implemented.
343 # Test the ability to catch a fork, specify that the child be
344 # followed, and continue. Make the catchpoint permanent.
346 if [runto_main] then { catch_fork_child_follow }
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.
351 if [runto_main] then { tcatch_fork_parent_follow }
354 # Start with a fresh gdb
358 gdb_reinitialize_dir $srcdir/$subdir
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.