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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 | ||
5a2468f5 JM |
24 | if { ![isnative] } then { |
25 | continue | |
74cf1395 JM |
26 | } |
27 | ||
28 | set prms_id 0 | |
29 | set bug_id 0 | |
30 | ||
5a2468f5 JM |
31 | if [istarget "hppa2.0w-hp-hpux*"] { |
32 | warning "Don't run gdb.base/foll-vfork.exp until JAGaa43495 kernel problem is fixed." | |
33 | return 0 | |
34 | } | |
35 | ||
74cf1395 JM |
36 | set testfile "foll-vfork" |
37 | set testfile2 "vforked-prog" | |
38 | set srcfile ${testfile}.c | |
39 | set srcfile2 ${testfile2}.c | |
40 | set binfile ${objdir}/${subdir}/${testfile} | |
41 | set binfile2 ${objdir}/${subdir}/${testfile2} | |
42 | ||
43 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { | |
44 | gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail." | |
45 | } | |
46 | ||
47 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile2}" "${binfile2}" executable {debug}] != "" } { | |
48 | gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail." | |
49 | } | |
50 | ||
51 | ||
52 | # Until "set follow-fork-mode" and "catch vfork" are implemented on | |
53 | # other targets... | |
54 | # | |
55 | if ![istarget "hppa*-hp-hpux*"] then { | |
56 | continue | |
57 | } | |
58 | ||
59 | # Test to see if we are on an HP-UX 10.20 and if so, | |
60 | # do not run these tests as catching vfork is disabled for | |
61 | # 10.20. | |
62 | ||
63 | if [istarget "hppa*-hp-hpux10.20"] then { | |
64 | return 0 | |
65 | } | |
66 | ||
67 | # A few of these tests require a little more time than the standard | |
68 | # timeout allows. | |
69 | set oldtimeout $timeout | |
70 | set timeout [expr "$timeout + 10"] | |
71 | ||
72 | proc vfork_parent_follow_through_step {} { | |
73 | global gdb_prompt | |
74 | ||
75 | send_gdb "set follow parent\n" | |
76 | gdb_expect { | |
77 | -re "$gdb_prompt $" {pass "set follow parent, vfork through step"} | |
78 | timeout {fail "set follow parent, vfork through step"} | |
79 | } | |
80 | send_gdb "next\n" | |
81 | gdb_expect { | |
82 | -re "Detaching after fork from.*13.*$gdb_prompt $"\ | |
83 | {pass "vfork parent follow, through step"} | |
84 | -re "$gdb_prompt $" {fail "vfork parent follow, through step"} | |
85 | timeout {fail "(timeout) vfork parent follow, through step" } | |
86 | } | |
87 | # The child has been detached; allow time for any output it might | |
88 | # generate to arrive, so that output doesn't get confused with | |
89 | # any gdb_expected debugger output from a subsequent testpoint. | |
90 | # | |
91 | exec sleep 1 | |
92 | } | |
93 | ||
94 | proc vfork_parent_follow_to_bp {} { | |
95 | global gdb_prompt | |
96 | ||
97 | send_gdb "set follow parent\n" | |
98 | gdb_expect { | |
99 | -re "$gdb_prompt $" {pass "set follow parent, vfork to bp"} | |
100 | timeout {fail "set follow parent, vfork to bp"} | |
101 | } | |
102 | send_gdb "break 18\n" | |
103 | gdb_expect { | |
104 | -re "$gdb_prompt $" {pass "break, vfork to bp"} | |
105 | timeout {fail "break, vfork to bp"} | |
106 | } | |
107 | send_gdb "continue\n" | |
108 | gdb_expect { | |
109 | -re ".*Detaching after fork from process.*Breakpoint.*18.*$gdb_prompt $"\ | |
110 | {pass "vfork parent follow, to bp"} | |
111 | -re "$gdb_prompt $" {fail "vfork parent follow, to bp"} | |
112 | timeout {fail "(timeout) vfork parent follow, to bp" } | |
113 | } | |
114 | # The child has been detached; allow time for any output it might | |
115 | # generate to arrive, so that output doesn't get confused with | |
116 | # any expected debugger output from a subsequent testpoint. | |
117 | # | |
118 | exec sleep 1 | |
119 | } | |
120 | ||
121 | proc vfork_and_exec_child_follow_to_main_bp {} { | |
122 | global gdb_prompt | |
123 | global binfile | |
124 | ||
125 | send_gdb "set follow child\n" | |
126 | gdb_expect { | |
127 | -re "$gdb_prompt $" {pass "set follow child, vfork and exec to main bp"} | |
128 | timeout {fail "set follow child, vfork and exec to main bp"} | |
129 | } | |
130 | send_gdb "continue\n" | |
131 | gdb_expect { | |
132 | -re "Detaching from program.*Attaching after fork to.*Executing new program.*Breakpoint.*vforked-prog.c:9.*$gdb_prompt $"\ | |
133 | {pass "vfork and exec child follow, to main bp"} | |
134 | -re "$gdb_prompt $" {fail "vfork and exec child follow, to main bp"} | |
135 | timeout {fail "(timeout) vfork and exec child follow, to main bp" } | |
136 | } | |
137 | # The parent has been detached; allow time for any output it might | |
138 | # generate to arrive, so that output doesn't get confused with | |
139 | # any gdb_expected debugger output from a subsequent testpoint. | |
140 | # | |
141 | exec sleep 1 | |
142 | ||
143 | # Explicitly kill this child, or a subsequent rerun actually runs | |
144 | # the exec'd child, not the original program... | |
145 | send_gdb "kill\n" | |
146 | gdb_expect { | |
147 | -re ".*Kill the program being debugged.*y or n. $" { | |
148 | send_gdb "y\n" | |
149 | send_gdb "file $binfile\n" | |
150 | gdb_expect { | |
151 | -re ".*Load new symbol table from.*y or n. $" { | |
152 | send_gdb "y\n" | |
153 | gdb_expect { | |
154 | -re "Reading symbols from.*$gdb_prompt $" {} | |
155 | timeout { fail "loading symbols (timeout)"; return } | |
156 | } | |
157 | } | |
158 | -re ".*gdb_prompt $" {} | |
159 | timeout { fail "loading symbols (timeout)"; return } | |
160 | } | |
161 | } | |
162 | -re ".*$gdb_prompt $" {} | |
163 | timeout { fail "killing inferior (timeout)" ; return } | |
164 | } | |
165 | } | |
166 | ||
167 | proc vfork_and_exec_child_follow_through_step {} { | |
168 | global gdb_prompt | |
169 | global binfile | |
170 | ||
171 | # This test cannot be performed prior to HP-UX 10.30, because ptrace-based | |
172 | # debugging of a vforking program basically doesn't allow the child to do | |
173 | # things like hit a breakpoint between a vfork and exec. This means that | |
174 | # saying "set follow child; next" at a vfork() call won't work, because | |
175 | # the implementation of "next" sets a "step resume" breakpoint at the | |
176 | # return from the vfork(), which the child will hit on its way to exec'ing. | |
177 | # | |
178 | if { ![istarget "hppa*-*-hpux10.30"] && ![istarget "hppa*-*-hpux11.*"] } { | |
179 | verbose "vfork child-following next test ignored for non-hppa or pre-HP/UX-10.30 targets." | |
180 | return 0 | |
181 | } | |
182 | ||
183 | send_gdb "set follow child\n" | |
184 | gdb_expect { | |
185 | -re "$gdb_prompt $" {pass "set follow child, vfork and exec through step"} | |
186 | timeout {fail "set follow child, vfork and exec through step"} | |
187 | } | |
188 | send_gdb "next\n" | |
189 | gdb_expect { | |
190 | -re "Detaching from program.*Attaching after fork to.*Executing new program.*Breakpoint.*vforked-prog.c:9.*$gdb_prompt $"\ | |
191 | {pass "vfork and exec child follow, through step"} | |
192 | -re "$gdb_prompt $" {fail "vfork and exec child follow, through step"} | |
193 | timeout {fail "(timeout) vfork and exec child follow, through step" } | |
194 | } | |
195 | # The parent has been detached; allow time for any output it might | |
196 | # generate to arrive, so that output doesn't get confused with | |
197 | # any expected debugger output from a subsequent testpoint. | |
198 | # | |
199 | exec sleep 1 | |
200 | ||
201 | # Explicitly kill this child, or a subsequent rerun actually runs | |
202 | # the exec'd child, not the original program... | |
203 | send_gdb "kill\n" | |
204 | gdb_expect { | |
205 | -re ".*Kill the program being debugged.*y or n. $" { | |
206 | send_gdb "y\n" | |
207 | send_gdb "file $binfile\n" | |
208 | gdb_expect { | |
209 | -re ".*Load new symbol table from.*y or n. $" { | |
210 | send_gdb "y\n" | |
211 | gdb_expect { | |
212 | -re "Reading symbols from.*$gdb_prompt $" {} | |
213 | timeout { fail "loading symbols (timeout)"; return } | |
214 | } | |
215 | } | |
216 | -re ".*gdb_prompt $" {} | |
217 | timeout { fail "loading symbols (timeout)"; return } | |
218 | } | |
219 | } | |
220 | -re ".*$gdb_prompt $" {} | |
221 | timeout { fail "killing inferior (timeout)" ; return } | |
222 | } | |
223 | } | |
224 | ||
225 | proc tcatch_vfork_then_parent_follow {} { | |
226 | global gdb_prompt | |
227 | global srcfile | |
228 | ||
229 | send_gdb "set follow parent\n" | |
230 | gdb_expect { | |
231 | -re "$gdb_prompt $" {pass "set follow parent, tcatch vfork"} | |
232 | timeout {fail "set follow parent, tcatch vfork"} | |
233 | } | |
234 | send_gdb "tcatch vfork\n" | |
235 | gdb_expect { | |
236 | -re "Catchpoint .*(vfork).*$gdb_prompt $"\ | |
237 | {pass "vfork parent follow, set tcatch vfork"} | |
238 | -re "$gdb_prompt $" {fail "vfork parent follow, set tcatch vfork"} | |
239 | timeout {fail "(timeout) vfork parent follow, set tcatch vfork"} | |
240 | } | |
241 | send_gdb "continue\n" | |
242 | # HP-UX 10.20 seems to stop you in "vfork", while more recent HP-UXs | |
243 | # stop you in "_vfork". | |
244 | gdb_expect { | |
245 | -re "0x\[0-9a-fA-F\]*.*vfork.*$gdb_prompt $"\ | |
246 | {pass "vfork parent follow, tcatch vfork"} | |
247 | -re "0x\[0-9a-fA-F\]*.*_vfork.*$gdb_prompt $"\ | |
248 | {pass "vfork parent follow, tcatch vfork"} | |
249 | -re "$gdb_prompt $" {fail "vfork parent follow, tcatch vfork"} | |
250 | timeout {fail "(timeout) vfork parent follow, tcatch vfork"} | |
251 | } | |
252 | send_gdb "finish\n" | |
253 | gdb_expect { | |
254 | -re "Run till exit from.*vfork.*0x\[0-9a-fA-F\]* in main .* at .*${srcfile}:12.*$gdb_prompt $"\ | |
255 | {pass "vfork parent follow, finish after tcatch vfork"} | |
256 | -re "$gdb_prompt $" {fail "vfork parent follow, finish after tcatch vfork"} | |
257 | timeout {fail "(timeout) vfork parent follow, finish after tcatch vfork" } | |
258 | } | |
259 | # The child has been detached; allow time for any output it might | |
260 | # generate to arrive, so that output doesn't get confused with | |
261 | # any expected debugger output from a subsequent testpoint. | |
262 | # | |
263 | exec sleep 1 | |
264 | } | |
265 | ||
266 | proc tcatch_vfork_then_child_follow {} { | |
267 | global gdb_prompt | |
268 | global srcfile2 | |
269 | ||
270 | send_gdb "set follow child\n" | |
271 | gdb_expect { | |
272 | -re "$gdb_prompt $" {pass "set follow child, tcatch vfork"} | |
273 | timeout {fail "set follow child, tcatch vfork"} | |
274 | } | |
275 | send_gdb "tcatch vfork\n" | |
276 | gdb_expect { | |
277 | -re "Catchpoint .*(vfork).*$gdb_prompt $"\ | |
278 | {pass "vfork child follow, set tcatch vfork"} | |
279 | -re "$gdb_prompt $" {fail "vfork child follow, set tcatch vfork"} | |
280 | timeout {fail "(timeout) vfork child follow, set tcatch vfork"} | |
281 | } | |
282 | send_gdb "continue\n" | |
283 | # HP-UX 10.20 seems to stop you in "vfork", while more recent HP-UXs | |
284 | # stop you in "_vfork". | |
285 | gdb_expect { | |
286 | -re "0x\[0-9a-fA-F\]*.*vfork.*$gdb_prompt $"\ | |
287 | {pass "vfork child follow, tcatch vfork"} | |
288 | -re "0x\[0-9a-fA-F\]*.*_vfork.*$gdb_prompt $"\ | |
289 | {pass "vfork child follow, tcatch vfork"} | |
290 | -re "$gdb_prompt $" {fail "vfork child follow, tcatch vfork"} | |
291 | timeout {fail "(timeout) vfork child follow, tcatch vfork"} | |
292 | } | |
293 | send_gdb "finish\n" | |
294 | gdb_expect { | |
295 | -re "Run till exit from.*vfork.*${srcfile2}:9.*$gdb_prompt $"\ | |
296 | {pass "vfork child follow, finish after tcatch vfork"} | |
297 | -re "$gdb_prompt $" {fail "vfork child follow, finish after tcatch vfork"} | |
298 | timeout {fail "(timeout) vfork child follow, finish after tcatch vfork" } | |
299 | } | |
300 | # The parent has been detached; allow time for any output it might | |
301 | # generate to arrive, so that output doesn't get confused with | |
302 | # any expected debugger output from a subsequent testpoint. | |
303 | # | |
304 | exec sleep 1 | |
305 | } | |
306 | ||
307 | proc do_vfork_and_exec_tests {} { | |
308 | global gdb_prompt | |
309 | ||
310 | # Try following the parent process by stepping through a call to | |
311 | # vfork. Do this without catchpoints. | |
312 | if [runto_main] then { vfork_parent_follow_through_step } | |
313 | ||
314 | # Try following the parent process by setting a breakpoint on the | |
315 | # other side of a vfork, and running to that point. Do this | |
316 | # without catchpoints. | |
317 | if [runto_main] then { vfork_parent_follow_to_bp } | |
318 | ||
319 | # Try following the child process by just continuing through the | |
320 | # vfork, and letting the parent's breakpoint on "main" be auto- | |
321 | # magically reset in the child. | |
322 | # | |
323 | if [runto_main] then { vfork_and_exec_child_follow_to_main_bp } | |
324 | ||
325 | # Try following the child process by stepping through a call to | |
326 | # vfork. The child also executes an exec. Since the child cannot | |
327 | # be debugged until after it has exec'd, and since there's a bp on | |
328 | # "main" in the parent, and since the bp's for the parent are | |
329 | # recomputed in the exec'd child, the step through a vfork should | |
330 | # land us in the "main" for the exec'd child, too. | |
331 | # | |
332 | if [runto_main] then { vfork_and_exec_child_follow_through_step } | |
333 | ||
334 | # Try catching a vfork, and stepping out to the parent. | |
335 | # | |
336 | if [runto_main] then { tcatch_vfork_then_parent_follow } | |
337 | ||
338 | # Try catching a vfork, and stepping out to the child. | |
339 | # | |
340 | if [runto_main] then { tcatch_vfork_then_child_follow } | |
341 | ||
342 | # Test the ability to follow both child and parent of a vfork. Do | |
343 | # this without catchpoints. | |
344 | # ??rehrauer: NYI. Will add testpoints here when implemented. | |
345 | # | |
346 | ||
347 | # Test the ability to have the debugger ask the user at vfork-time | |
348 | # whether to follow the parent, child or both. Do this without | |
349 | # catchpoints. | |
350 | # ??rehrauer: NYI. Will add testpoints here when implemented. | |
351 | # | |
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 or child | |
363 | # of a Unix vfork() system call. (The child will subsequently | |
364 | # call a variant of a Unix exec() system call.) | |
365 | # | |
366 | do_vfork_and_exec_tests | |
367 | ||
368 | set timeout $oldtimeout | |
369 | return 0 |