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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 | |
74cf1395 JM |
26 | } |
27 | ||
28 | set prms_id 0 | |
29 | set bug_id 0 | |
30 | ||
6604731b DJ |
31 | # NOTE drow/2002-12-06: I don't know what the referenced kernel problem |
32 | # is, but it appears to be fixed in recent HP/UX versions. | |
33 | ||
34 | ##if [istarget "hppa2.0w-hp-hpux*"] { | |
35 | ## warning "Don't run gdb.base/foll-vfork.exp until JAGaa43495 kernel problem is fixed." | |
36 | ## return 0 | |
37 | ##} | |
5a2468f5 | 38 | |
74cf1395 JM |
39 | set testfile "foll-vfork" |
40 | set testfile2 "vforked-prog" | |
41 | set srcfile ${testfile}.c | |
42 | set srcfile2 ${testfile2}.c | |
43 | set binfile ${objdir}/${subdir}/${testfile} | |
44 | set binfile2 ${objdir}/${subdir}/${testfile2} | |
45 | ||
46 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { | |
47 | gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail." | |
48 | } | |
49 | ||
50 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile2}" "${binfile2}" executable {debug}] != "" } { | |
51 | gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail." | |
52 | } | |
53 | ||
54 | ||
55 | # Until "set follow-fork-mode" and "catch vfork" are implemented on | |
56 | # other targets... | |
57 | # | |
58 | if ![istarget "hppa*-hp-hpux*"] then { | |
59 | continue | |
60 | } | |
61 | ||
62 | # Test to see if we are on an HP-UX 10.20 and if so, | |
63 | # do not run these tests as catching vfork is disabled for | |
64 | # 10.20. | |
65 | ||
66 | if [istarget "hppa*-hp-hpux10.20"] then { | |
67 | return 0 | |
68 | } | |
69 | ||
70 | # A few of these tests require a little more time than the standard | |
71 | # timeout allows. | |
72 | set oldtimeout $timeout | |
73 | set timeout [expr "$timeout + 10"] | |
74 | ||
75 | proc vfork_parent_follow_through_step {} { | |
76 | global gdb_prompt | |
77 | ||
78 | send_gdb "set follow parent\n" | |
79 | gdb_expect { | |
80 | -re "$gdb_prompt $" {pass "set follow parent, vfork through step"} | |
81 | timeout {fail "set follow parent, vfork through step"} | |
82 | } | |
83 | send_gdb "next\n" | |
84 | gdb_expect { | |
a0b3c4fd | 85 | -re "Detaching after fork from.*13.*$gdb_prompt "\ |
74cf1395 JM |
86 | {pass "vfork parent follow, through step"} |
87 | -re "$gdb_prompt $" {fail "vfork parent follow, through step"} | |
88 | timeout {fail "(timeout) vfork parent follow, through step" } | |
89 | } | |
90 | # The child has been detached; allow time for any output it might | |
91 | # generate to arrive, so that output doesn't get confused with | |
92 | # any gdb_expected debugger output from a subsequent testpoint. | |
93 | # | |
94 | exec sleep 1 | |
95 | } | |
96 | ||
97 | proc vfork_parent_follow_to_bp {} { | |
98 | global gdb_prompt | |
99 | ||
100 | send_gdb "set follow parent\n" | |
101 | gdb_expect { | |
102 | -re "$gdb_prompt $" {pass "set follow parent, vfork to bp"} | |
103 | timeout {fail "set follow parent, vfork to bp"} | |
104 | } | |
105 | send_gdb "break 18\n" | |
106 | gdb_expect { | |
107 | -re "$gdb_prompt $" {pass "break, vfork to bp"} | |
108 | timeout {fail "break, vfork to bp"} | |
109 | } | |
110 | send_gdb "continue\n" | |
111 | gdb_expect { | |
a0b3c4fd | 112 | -re ".*Detaching after fork from process.*Breakpoint.*18.*$gdb_prompt "\ |
74cf1395 JM |
113 | {pass "vfork parent follow, to bp"} |
114 | -re "$gdb_prompt $" {fail "vfork parent follow, to bp"} | |
115 | timeout {fail "(timeout) vfork parent follow, to bp" } | |
116 | } | |
117 | # The child has been detached; allow time for any output it might | |
118 | # generate to arrive, so that output doesn't get confused with | |
119 | # any expected debugger output from a subsequent testpoint. | |
120 | # | |
121 | exec sleep 1 | |
122 | } | |
123 | ||
124 | proc vfork_and_exec_child_follow_to_main_bp {} { | |
125 | global gdb_prompt | |
126 | global binfile | |
127 | ||
128 | send_gdb "set follow child\n" | |
129 | gdb_expect { | |
130 | -re "$gdb_prompt $" {pass "set follow child, vfork and exec to main bp"} | |
131 | timeout {fail "set follow child, vfork and exec to main bp"} | |
132 | } | |
133 | send_gdb "continue\n" | |
134 | gdb_expect { | |
a0b3c4fd | 135 | -re "Detaching from program.*Attaching after fork to.*Executing new program.*Breakpoint.*vforked-prog.c:9.*$gdb_prompt "\ |
74cf1395 JM |
136 | {pass "vfork and exec child follow, to main bp"} |
137 | -re "$gdb_prompt $" {fail "vfork and exec child follow, to main bp"} | |
138 | timeout {fail "(timeout) vfork and exec child follow, to main bp" } | |
139 | } | |
140 | # The parent has been detached; allow time for any output it might | |
141 | # generate to arrive, so that output doesn't get confused with | |
142 | # any gdb_expected debugger output from a subsequent testpoint. | |
143 | # | |
144 | exec sleep 1 | |
145 | ||
146 | # Explicitly kill this child, or a subsequent rerun actually runs | |
147 | # the exec'd child, not the original program... | |
148 | send_gdb "kill\n" | |
149 | gdb_expect { | |
150 | -re ".*Kill the program being debugged.*y or n. $" { | |
151 | send_gdb "y\n" | |
152 | send_gdb "file $binfile\n" | |
153 | gdb_expect { | |
154 | -re ".*Load new symbol table from.*y or n. $" { | |
155 | send_gdb "y\n" | |
156 | gdb_expect { | |
157 | -re "Reading symbols from.*$gdb_prompt $" {} | |
158 | timeout { fail "loading symbols (timeout)"; return } | |
159 | } | |
160 | } | |
161 | -re ".*gdb_prompt $" {} | |
162 | timeout { fail "loading symbols (timeout)"; return } | |
163 | } | |
164 | } | |
165 | -re ".*$gdb_prompt $" {} | |
166 | timeout { fail "killing inferior (timeout)" ; return } | |
167 | } | |
168 | } | |
169 | ||
170 | proc vfork_and_exec_child_follow_through_step {} { | |
171 | global gdb_prompt | |
172 | global binfile | |
173 | ||
174 | # This test cannot be performed prior to HP-UX 10.30, because ptrace-based | |
175 | # debugging of a vforking program basically doesn't allow the child to do | |
176 | # things like hit a breakpoint between a vfork and exec. This means that | |
177 | # saying "set follow child; next" at a vfork() call won't work, because | |
178 | # the implementation of "next" sets a "step resume" breakpoint at the | |
179 | # return from the vfork(), which the child will hit on its way to exec'ing. | |
180 | # | |
a0b3c4fd | 181 | if { ![istarget "hppa*-*-hpux11.*"] } { |
74cf1395 JM |
182 | verbose "vfork child-following next test ignored for non-hppa or pre-HP/UX-10.30 targets." |
183 | return 0 | |
184 | } | |
185 | ||
186 | send_gdb "set follow child\n" | |
187 | gdb_expect { | |
188 | -re "$gdb_prompt $" {pass "set follow child, vfork and exec through step"} | |
189 | timeout {fail "set follow child, vfork and exec through step"} | |
190 | } | |
191 | send_gdb "next\n" | |
192 | gdb_expect { | |
a0b3c4fd | 193 | -re "Detaching from program.*Attaching after fork to.*Executing new program.*Breakpoint.*vforked-prog.c:9.*$gdb_prompt "\ |
74cf1395 JM |
194 | {pass "vfork and exec child follow, through step"} |
195 | -re "$gdb_prompt $" {fail "vfork and exec child follow, through step"} | |
196 | timeout {fail "(timeout) vfork and exec child follow, through step" } | |
197 | } | |
198 | # The parent has been detached; allow time for any output it might | |
199 | # generate to arrive, so that output doesn't get confused with | |
200 | # any expected debugger output from a subsequent testpoint. | |
201 | # | |
202 | exec sleep 1 | |
203 | ||
204 | # Explicitly kill this child, or a subsequent rerun actually runs | |
205 | # the exec'd child, not the original program... | |
206 | send_gdb "kill\n" | |
207 | gdb_expect { | |
208 | -re ".*Kill the program being debugged.*y or n. $" { | |
209 | send_gdb "y\n" | |
210 | send_gdb "file $binfile\n" | |
211 | gdb_expect { | |
212 | -re ".*Load new symbol table from.*y or n. $" { | |
213 | send_gdb "y\n" | |
214 | gdb_expect { | |
215 | -re "Reading symbols from.*$gdb_prompt $" {} | |
216 | timeout { fail "loading symbols (timeout)"; return } | |
217 | } | |
218 | } | |
219 | -re ".*gdb_prompt $" {} | |
220 | timeout { fail "loading symbols (timeout)"; return } | |
221 | } | |
222 | } | |
223 | -re ".*$gdb_prompt $" {} | |
224 | timeout { fail "killing inferior (timeout)" ; return } | |
225 | } | |
226 | } | |
227 | ||
228 | proc tcatch_vfork_then_parent_follow {} { | |
229 | global gdb_prompt | |
230 | global srcfile | |
231 | ||
232 | send_gdb "set follow parent\n" | |
233 | gdb_expect { | |
234 | -re "$gdb_prompt $" {pass "set follow parent, tcatch vfork"} | |
235 | timeout {fail "set follow parent, tcatch vfork"} | |
236 | } | |
237 | send_gdb "tcatch vfork\n" | |
238 | gdb_expect { | |
239 | -re "Catchpoint .*(vfork).*$gdb_prompt $"\ | |
240 | {pass "vfork parent follow, set tcatch vfork"} | |
241 | -re "$gdb_prompt $" {fail "vfork parent follow, set tcatch vfork"} | |
242 | timeout {fail "(timeout) vfork parent follow, set tcatch vfork"} | |
243 | } | |
244 | send_gdb "continue\n" | |
245 | # HP-UX 10.20 seems to stop you in "vfork", while more recent HP-UXs | |
246 | # stop you in "_vfork". | |
247 | gdb_expect { | |
a0b3c4fd | 248 | -re "0x\[0-9a-fA-F\]*.*vfork.*$gdb_prompt "\ |
74cf1395 | 249 | {pass "vfork parent follow, tcatch vfork"} |
a0b3c4fd | 250 | -re "0x\[0-9a-fA-F\]*.*_vfork.*$gdb_prompt "\ |
74cf1395 JM |
251 | {pass "vfork parent follow, tcatch vfork"} |
252 | -re "$gdb_prompt $" {fail "vfork parent follow, tcatch vfork"} | |
253 | timeout {fail "(timeout) vfork parent follow, tcatch vfork"} | |
254 | } | |
255 | send_gdb "finish\n" | |
256 | gdb_expect { | |
a0b3c4fd | 257 | -re "Run till exit from.*vfork.*0x\[0-9a-fA-F\]* in main .* at .*${srcfile}:12.*$gdb_prompt "\ |
74cf1395 JM |
258 | {pass "vfork parent follow, finish after tcatch vfork"} |
259 | -re "$gdb_prompt $" {fail "vfork parent follow, finish after tcatch vfork"} | |
260 | timeout {fail "(timeout) vfork parent follow, finish after tcatch vfork" } | |
261 | } | |
262 | # The child has been detached; allow time for any output it might | |
263 | # generate to arrive, so that output doesn't get confused with | |
264 | # any expected debugger output from a subsequent testpoint. | |
265 | # | |
266 | exec sleep 1 | |
267 | } | |
268 | ||
269 | proc tcatch_vfork_then_child_follow {} { | |
270 | global gdb_prompt | |
271 | global srcfile2 | |
272 | ||
273 | send_gdb "set follow child\n" | |
274 | gdb_expect { | |
275 | -re "$gdb_prompt $" {pass "set follow child, tcatch vfork"} | |
276 | timeout {fail "set follow child, tcatch vfork"} | |
277 | } | |
278 | send_gdb "tcatch vfork\n" | |
279 | gdb_expect { | |
280 | -re "Catchpoint .*(vfork).*$gdb_prompt $"\ | |
281 | {pass "vfork child follow, set tcatch vfork"} | |
282 | -re "$gdb_prompt $" {fail "vfork child follow, set tcatch vfork"} | |
283 | timeout {fail "(timeout) vfork child follow, set tcatch vfork"} | |
284 | } | |
285 | send_gdb "continue\n" | |
286 | # HP-UX 10.20 seems to stop you in "vfork", while more recent HP-UXs | |
287 | # stop you in "_vfork". | |
288 | gdb_expect { | |
a0b3c4fd | 289 | -re "0x\[0-9a-fA-F\]*.*vfork.*$gdb_prompt "\ |
74cf1395 | 290 | {pass "vfork child follow, tcatch vfork"} |
a0b3c4fd | 291 | -re "0x\[0-9a-fA-F\]*.*_vfork.*$gdb_prompt "\ |
74cf1395 JM |
292 | {pass "vfork child follow, tcatch vfork"} |
293 | -re "$gdb_prompt $" {fail "vfork child follow, tcatch vfork"} | |
294 | timeout {fail "(timeout) vfork child follow, tcatch vfork"} | |
295 | } | |
296 | send_gdb "finish\n" | |
297 | gdb_expect { | |
a0b3c4fd | 298 | -re "Run till exit from.*vfork.*${srcfile2}:9.*$gdb_prompt "\ |
74cf1395 JM |
299 | {pass "vfork child follow, finish after tcatch vfork"} |
300 | -re "$gdb_prompt $" {fail "vfork child follow, finish after tcatch vfork"} | |
301 | timeout {fail "(timeout) vfork child follow, finish after tcatch vfork" } | |
302 | } | |
303 | # The parent has been detached; allow time for any output it might | |
304 | # generate to arrive, so that output doesn't get confused with | |
305 | # any expected debugger output from a subsequent testpoint. | |
306 | # | |
307 | exec sleep 1 | |
308 | } | |
309 | ||
310 | proc do_vfork_and_exec_tests {} { | |
311 | global gdb_prompt | |
312 | ||
313 | # Try following the parent process by stepping through a call to | |
314 | # vfork. Do this without catchpoints. | |
315 | if [runto_main] then { vfork_parent_follow_through_step } | |
316 | ||
317 | # Try following the parent process by setting a breakpoint on the | |
318 | # other side of a vfork, and running to that point. Do this | |
319 | # without catchpoints. | |
320 | if [runto_main] then { vfork_parent_follow_to_bp } | |
321 | ||
322 | # Try following the child process by just continuing through the | |
323 | # vfork, and letting the parent's breakpoint on "main" be auto- | |
324 | # magically reset in the child. | |
325 | # | |
326 | if [runto_main] then { vfork_and_exec_child_follow_to_main_bp } | |
327 | ||
328 | # Try following the child process by stepping through a call to | |
329 | # vfork. The child also executes an exec. Since the child cannot | |
330 | # be debugged until after it has exec'd, and since there's a bp on | |
331 | # "main" in the parent, and since the bp's for the parent are | |
332 | # recomputed in the exec'd child, the step through a vfork should | |
333 | # land us in the "main" for the exec'd child, too. | |
334 | # | |
335 | if [runto_main] then { vfork_and_exec_child_follow_through_step } | |
336 | ||
337 | # Try catching a vfork, and stepping out to the parent. | |
338 | # | |
339 | if [runto_main] then { tcatch_vfork_then_parent_follow } | |
340 | ||
341 | # Try catching a vfork, and stepping out to the child. | |
342 | # | |
343 | if [runto_main] then { tcatch_vfork_then_child_follow } | |
344 | ||
345 | # Test the ability to follow both child and parent of a vfork. Do | |
346 | # this without catchpoints. | |
347 | # ??rehrauer: NYI. Will add testpoints here when implemented. | |
348 | # | |
349 | ||
350 | # Test the ability to have the debugger ask the user at vfork-time | |
351 | # whether to follow the parent, child or both. Do this without | |
352 | # catchpoints. | |
353 | # ??rehrauer: NYI. Will add testpoints here when implemented. | |
354 | # | |
355 | } | |
356 | ||
357 | # Start with a fresh gdb | |
358 | ||
359 | gdb_exit | |
360 | gdb_start | |
361 | gdb_reinitialize_dir $srcdir/$subdir | |
362 | gdb_load ${binfile} | |
363 | ||
364 | ||
365 | # This is a test of gdb's ability to follow the parent or child | |
366 | # of a Unix vfork() system call. (The child will subsequently | |
367 | # call a variant of a Unix exec() system call.) | |
368 | # | |
369 | do_vfork_and_exec_tests | |
370 | ||
371 | set timeout $oldtimeout | |
372 | return 0 |