Commit | Line | Data |
---|---|---|
4c38e0a4 JB |
1 | # Copyright 1997, 1999, 2007, 2008, 2009, 2010 |
2 | # Free Software Foundation, Inc. | |
74cf1395 JM |
3 | |
4 | # This program is free software; you can redistribute it and/or modify | |
5 | # it under the terms of the GNU General Public License as published by | |
e22f8b7c | 6 | # the Free Software Foundation; either version 3 of the License, or |
74cf1395 | 7 | # (at your option) any later version. |
e22f8b7c | 8 | # |
74cf1395 JM |
9 | # This program is distributed in the hope that it will be useful, |
10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | # GNU General Public License for more details. | |
e22f8b7c | 13 | # |
74cf1395 | 14 | # You should have received a copy of the GNU General Public License |
e85a822c | 15 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
74cf1395 | 16 | |
e85a822c | 17 | if { [is_remote target] || ![isnative] } then { |
5a2468f5 | 18 | continue |
74cf1395 JM |
19 | } |
20 | ||
21 | set prms_id 0 | |
22 | set bug_id 0 | |
23 | ||
6604731b DJ |
24 | # NOTE drow/2002-12-06: I don't know what the referenced kernel problem |
25 | # is, but it appears to be fixed in recent HP/UX versions. | |
26 | ||
27 | ##if [istarget "hppa2.0w-hp-hpux*"] { | |
28 | ## warning "Don't run gdb.base/foll-vfork.exp until JAGaa43495 kernel problem is fixed." | |
29 | ## return 0 | |
30 | ##} | |
5a2468f5 | 31 | |
e85a822c | 32 | global srcfile |
74cf1395 JM |
33 | set testfile "foll-vfork" |
34 | set testfile2 "vforked-prog" | |
35 | set srcfile ${testfile}.c | |
36 | set srcfile2 ${testfile2}.c | |
37 | set binfile ${objdir}/${subdir}/${testfile} | |
38 | set binfile2 ${objdir}/${subdir}/${testfile2} | |
39 | ||
40 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { | |
b60f0898 JB |
41 | untested foll-vfork.exp |
42 | return -1 | |
74cf1395 JM |
43 | } |
44 | ||
45 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile2}" "${binfile2}" executable {debug}] != "" } { | |
b60f0898 JB |
46 | untested foll-vfork.exp |
47 | return -1 | |
74cf1395 JM |
48 | } |
49 | ||
50 | ||
51 | # Until "set follow-fork-mode" and "catch vfork" are implemented on | |
52 | # other targets... | |
53 | # | |
e85a822c | 54 | if {![istarget "hppa*-hp-hpux*"] && ![istarget "*-linux*"]} then { |
74cf1395 JM |
55 | continue |
56 | } | |
57 | ||
58 | # Test to see if we are on an HP-UX 10.20 and if so, | |
59 | # do not run these tests as catching vfork is disabled for | |
60 | # 10.20. | |
61 | ||
62 | if [istarget "hppa*-hp-hpux10.20"] then { | |
63 | return 0 | |
64 | } | |
65 | ||
66 | # A few of these tests require a little more time than the standard | |
67 | # timeout allows. | |
68 | set oldtimeout $timeout | |
69 | set timeout [expr "$timeout + 10"] | |
70 | ||
e85a822c DJ |
71 | proc check_vfork_catchpoints {} { |
72 | global gdb_prompt | |
73 | global has_vfork_catchpoints | |
74 | ||
75 | # Verify that the system supports "catch vfork". | |
76 | gdb_test "catch vfork" "Catchpoint \[0-9\]* \\(vfork\\)" "insert first vfork catchpoint" | |
77 | set has_vfork_catchpoints 0 | |
78 | gdb_test_multiple "continue" "continue to first vfork catchpoint" { | |
79 | -re ".*Your system does not support vfork catchpoints.*$gdb_prompt $" { | |
80 | unsupported "continue to first vfork catchpoint" | |
81 | } | |
82 | -re ".*Catchpoint.*$gdb_prompt $" { | |
83 | set has_vfork_catchpoints 1 | |
84 | pass "continue to first vfork catchpoint" | |
85 | } | |
86 | } | |
87 | ||
88 | if {$has_vfork_catchpoints == 0} { | |
89 | unsupported "vfork catchpoints" | |
90 | return -code return | |
91 | } | |
92 | } | |
93 | ||
74cf1395 JM |
94 | proc vfork_parent_follow_through_step {} { |
95 | global gdb_prompt | |
96 | ||
6c95b8df | 97 | send_gdb "set follow-fork parent\n" |
74cf1395 | 98 | gdb_expect { |
6c95b8df PA |
99 | -re "$gdb_prompt $" {pass "set follow-fork parent, vfork through step"} |
100 | timeout {fail "set follow-fork parent, vfork through step"} | |
74cf1395 JM |
101 | } |
102 | send_gdb "next\n" | |
103 | gdb_expect { | |
a0b3c4fd | 104 | -re "Detaching after fork from.*13.*$gdb_prompt "\ |
74cf1395 JM |
105 | {pass "vfork parent follow, through step"} |
106 | -re "$gdb_prompt $" {fail "vfork parent follow, through step"} | |
107 | timeout {fail "(timeout) vfork parent follow, through step" } | |
108 | } | |
109 | # The child has been detached; allow time for any output it might | |
110 | # generate to arrive, so that output doesn't get confused with | |
111 | # any gdb_expected debugger output from a subsequent testpoint. | |
112 | # | |
113 | exec sleep 1 | |
114 | } | |
115 | ||
116 | proc vfork_parent_follow_to_bp {} { | |
117 | global gdb_prompt | |
e85a822c | 118 | global srcfile |
74cf1395 | 119 | |
6c95b8df | 120 | send_gdb "set follow-fork parent\n" |
74cf1395 | 121 | gdb_expect { |
6c95b8df PA |
122 | -re "$gdb_prompt $" {pass "set follow-fork parent, vfork to bp"} |
123 | timeout {fail "set follow-fork parent, vfork to bp"} | |
74cf1395 | 124 | } |
e85a822c | 125 | send_gdb "break ${srcfile}:18\n" |
74cf1395 JM |
126 | gdb_expect { |
127 | -re "$gdb_prompt $" {pass "break, vfork to bp"} | |
128 | timeout {fail "break, vfork to bp"} | |
129 | } | |
130 | send_gdb "continue\n" | |
131 | gdb_expect { | |
e85a822c | 132 | -re ".*Detaching after fork from child process.*Breakpoint.*18.*$gdb_prompt "\ |
74cf1395 JM |
133 | {pass "vfork parent follow, to bp"} |
134 | -re "$gdb_prompt $" {fail "vfork parent follow, to bp"} | |
135 | timeout {fail "(timeout) vfork parent follow, to bp" } | |
136 | } | |
137 | # The child has been detached; allow time for any output it might | |
138 | # generate to arrive, so that output doesn't get confused with | |
139 | # any expected debugger output from a subsequent testpoint. | |
140 | # | |
141 | exec sleep 1 | |
142 | } | |
143 | ||
144 | proc vfork_and_exec_child_follow_to_main_bp {} { | |
145 | global gdb_prompt | |
146 | global binfile | |
147 | ||
6c95b8df | 148 | send_gdb "set follow-fork child\n" |
74cf1395 | 149 | gdb_expect { |
6c95b8df PA |
150 | -re "$gdb_prompt $" {pass "set follow-fork child, vfork and exec to main bp"} |
151 | timeout {fail "set follow-fork child, vfork and exec to main bp"} | |
74cf1395 JM |
152 | } |
153 | send_gdb "continue\n" | |
154 | gdb_expect { | |
6c95b8df | 155 | -re "Attaching after.* vfork to.*xecuting new program.*Breakpoint.*vforked-prog.c:9.*$gdb_prompt "\ |
74cf1395 JM |
156 | {pass "vfork and exec child follow, to main bp"} |
157 | -re "$gdb_prompt $" {fail "vfork and exec child follow, to main bp"} | |
158 | timeout {fail "(timeout) vfork and exec child follow, to main bp" } | |
159 | } | |
160 | # The parent has been detached; allow time for any output it might | |
161 | # generate to arrive, so that output doesn't get confused with | |
162 | # any gdb_expected debugger output from a subsequent testpoint. | |
163 | # | |
164 | exec sleep 1 | |
165 | ||
166 | # Explicitly kill this child, or a subsequent rerun actually runs | |
167 | # the exec'd child, not the original program... | |
168 | send_gdb "kill\n" | |
169 | gdb_expect { | |
170 | -re ".*Kill the program being debugged.*y or n. $" { | |
171 | send_gdb "y\n" | |
172 | send_gdb "file $binfile\n" | |
173 | gdb_expect { | |
174 | -re ".*Load new symbol table from.*y or n. $" { | |
175 | send_gdb "y\n" | |
176 | gdb_expect { | |
177 | -re "Reading symbols from.*$gdb_prompt $" {} | |
178 | timeout { fail "loading symbols (timeout)"; return } | |
179 | } | |
180 | } | |
181 | -re ".*gdb_prompt $" {} | |
182 | timeout { fail "loading symbols (timeout)"; return } | |
183 | } | |
184 | } | |
185 | -re ".*$gdb_prompt $" {} | |
186 | timeout { fail "killing inferior (timeout)" ; return } | |
187 | } | |
188 | } | |
189 | ||
190 | proc vfork_and_exec_child_follow_through_step {} { | |
191 | global gdb_prompt | |
192 | global binfile | |
193 | ||
194 | # This test cannot be performed prior to HP-UX 10.30, because ptrace-based | |
195 | # debugging of a vforking program basically doesn't allow the child to do | |
196 | # things like hit a breakpoint between a vfork and exec. This means that | |
6c95b8df | 197 | # saying "set follow-fork child; next" at a vfork() call won't work, because |
74cf1395 JM |
198 | # the implementation of "next" sets a "step resume" breakpoint at the |
199 | # return from the vfork(), which the child will hit on its way to exec'ing. | |
200 | # | |
a0b3c4fd | 201 | if { ![istarget "hppa*-*-hpux11.*"] } { |
74cf1395 JM |
202 | verbose "vfork child-following next test ignored for non-hppa or pre-HP/UX-10.30 targets." |
203 | return 0 | |
204 | } | |
205 | ||
6c95b8df | 206 | send_gdb "set follow-fork child\n" |
74cf1395 | 207 | gdb_expect { |
6c95b8df PA |
208 | -re "$gdb_prompt $" {pass "set follow-fork child, vfork and exec through step"} |
209 | timeout {fail "set follow-fork child, vfork and exec through step"} | |
74cf1395 JM |
210 | } |
211 | send_gdb "next\n" | |
212 | gdb_expect { | |
e85a822c | 213 | -re "Attaching after fork to.*Executing new program.*Breakpoint.*vforked-prog.c:9.*$gdb_prompt "\ |
74cf1395 JM |
214 | {pass "vfork and exec child follow, through step"} |
215 | -re "$gdb_prompt $" {fail "vfork and exec child follow, through step"} | |
216 | timeout {fail "(timeout) vfork and exec child follow, through step" } | |
217 | } | |
218 | # The parent has been detached; allow time for any output it might | |
219 | # generate to arrive, so that output doesn't get confused with | |
220 | # any expected debugger output from a subsequent testpoint. | |
221 | # | |
222 | exec sleep 1 | |
223 | ||
224 | # Explicitly kill this child, or a subsequent rerun actually runs | |
225 | # the exec'd child, not the original program... | |
226 | send_gdb "kill\n" | |
227 | gdb_expect { | |
228 | -re ".*Kill the program being debugged.*y or n. $" { | |
229 | send_gdb "y\n" | |
230 | send_gdb "file $binfile\n" | |
231 | gdb_expect { | |
232 | -re ".*Load new symbol table from.*y or n. $" { | |
233 | send_gdb "y\n" | |
234 | gdb_expect { | |
235 | -re "Reading symbols from.*$gdb_prompt $" {} | |
236 | timeout { fail "loading symbols (timeout)"; return } | |
237 | } | |
238 | } | |
239 | -re ".*gdb_prompt $" {} | |
240 | timeout { fail "loading symbols (timeout)"; return } | |
241 | } | |
242 | } | |
243 | -re ".*$gdb_prompt $" {} | |
244 | timeout { fail "killing inferior (timeout)" ; return } | |
245 | } | |
246 | } | |
247 | ||
248 | proc tcatch_vfork_then_parent_follow {} { | |
249 | global gdb_prompt | |
250 | global srcfile | |
251 | ||
6c95b8df | 252 | send_gdb "set follow-fork parent\n" |
74cf1395 | 253 | gdb_expect { |
6c95b8df PA |
254 | -re "$gdb_prompt $" {pass "set follow-fork parent, tcatch vfork"} |
255 | timeout {fail "set follow-fork parent, tcatch vfork"} | |
74cf1395 JM |
256 | } |
257 | send_gdb "tcatch vfork\n" | |
258 | gdb_expect { | |
259 | -re "Catchpoint .*(vfork).*$gdb_prompt $"\ | |
260 | {pass "vfork parent follow, set tcatch vfork"} | |
261 | -re "$gdb_prompt $" {fail "vfork parent follow, set tcatch vfork"} | |
262 | timeout {fail "(timeout) vfork parent follow, set tcatch vfork"} | |
263 | } | |
264 | send_gdb "continue\n" | |
265 | # HP-UX 10.20 seems to stop you in "vfork", while more recent HP-UXs | |
266 | # stop you in "_vfork". | |
267 | gdb_expect { | |
a9c64011 | 268 | -re "0x\[0-9a-fA-F\]*.*(vfork|__kernel_v?syscall).*$gdb_prompt "\ |
74cf1395 | 269 | {pass "vfork parent follow, tcatch vfork"} |
e85a822c | 270 | -re "vfork \\(\\) at.*$gdb_prompt "\ |
74cf1395 JM |
271 | {pass "vfork parent follow, tcatch vfork"} |
272 | -re "$gdb_prompt $" {fail "vfork parent follow, tcatch vfork"} | |
273 | timeout {fail "(timeout) vfork parent follow, tcatch vfork"} | |
274 | } | |
275 | send_gdb "finish\n" | |
276 | gdb_expect { | |
a0b3c4fd | 277 | -re "Run till exit from.*vfork.*0x\[0-9a-fA-F\]* in main .* at .*${srcfile}:12.*$gdb_prompt "\ |
74cf1395 | 278 | {pass "vfork parent follow, finish after tcatch vfork"} |
a9c64011 AS |
279 | -re "Run till exit from.*__kernel_v?syscall.*0x\[0-9a-fA-F\]* in vfork .*$gdb_prompt " { |
280 | send_gdb "finish\n" | |
281 | exp_continue | |
282 | } | |
74cf1395 JM |
283 | -re "$gdb_prompt $" {fail "vfork parent follow, finish after tcatch vfork"} |
284 | timeout {fail "(timeout) vfork parent follow, finish after tcatch vfork" } | |
285 | } | |
286 | # The child has been detached; allow time for any output it might | |
287 | # generate to arrive, so that output doesn't get confused with | |
288 | # any expected debugger output from a subsequent testpoint. | |
289 | # | |
290 | exec sleep 1 | |
291 | } | |
292 | ||
293 | proc tcatch_vfork_then_child_follow {} { | |
294 | global gdb_prompt | |
e85a822c | 295 | global srcfile |
74cf1395 JM |
296 | global srcfile2 |
297 | ||
6c95b8df | 298 | send_gdb "set follow-fork child\n" |
74cf1395 | 299 | gdb_expect { |
6c95b8df PA |
300 | -re "$gdb_prompt $" {pass "set follow-fork child, tcatch vfork"} |
301 | timeout {fail "set follow-fork child, tcatch vfork"} | |
74cf1395 JM |
302 | } |
303 | send_gdb "tcatch vfork\n" | |
304 | gdb_expect { | |
305 | -re "Catchpoint .*(vfork).*$gdb_prompt $"\ | |
306 | {pass "vfork child follow, set tcatch vfork"} | |
307 | -re "$gdb_prompt $" {fail "vfork child follow, set tcatch vfork"} | |
308 | timeout {fail "(timeout) vfork child follow, set tcatch vfork"} | |
309 | } | |
310 | send_gdb "continue\n" | |
311 | # HP-UX 10.20 seems to stop you in "vfork", while more recent HP-UXs | |
312 | # stop you in "_vfork". | |
313 | gdb_expect { | |
e85a822c DJ |
314 | -re "vfork \\(\\) at .*$gdb_prompt $"\ |
315 | {pass "vfork child follow, tcatch vfork"} | |
a9c64011 | 316 | -re "0x\[0-9a-fA-F\]*.*(vfork|__kernel_v?syscall).*$gdb_prompt "\ |
74cf1395 JM |
317 | {pass "vfork child follow, tcatch vfork"} |
318 | -re "$gdb_prompt $" {fail "vfork child follow, tcatch vfork"} | |
319 | timeout {fail "(timeout) vfork child follow, tcatch vfork"} | |
320 | } | |
321 | send_gdb "finish\n" | |
322 | gdb_expect { | |
e85a822c | 323 | -re "Run till exit from.*vfork.*${srcfile}:12.*$gdb_prompt "\ |
74cf1395 | 324 | {pass "vfork child follow, finish after tcatch vfork"} |
a9c64011 AS |
325 | -re "Run till exit from.*__kernel_v?syscall.*0x\[0-9a-fA-F\]* in vfork .*$gdb_prompt " { |
326 | send_gdb "finish\n" | |
327 | exp_continue | |
328 | } | |
e85a822c DJ |
329 | -re "Run till exit from.*vfork.*${srcfile2}:9.*$gdb_prompt "\ |
330 | {pass "vfork child follow, finish after tcatch vfork (followed exec)"} | |
74cf1395 JM |
331 | -re "$gdb_prompt $" {fail "vfork child follow, finish after tcatch vfork"} |
332 | timeout {fail "(timeout) vfork child follow, finish after tcatch vfork" } | |
333 | } | |
334 | # The parent has been detached; allow time for any output it might | |
335 | # generate to arrive, so that output doesn't get confused with | |
336 | # any expected debugger output from a subsequent testpoint. | |
337 | # | |
338 | exec sleep 1 | |
339 | } | |
340 | ||
341 | proc do_vfork_and_exec_tests {} { | |
342 | global gdb_prompt | |
343 | ||
e85a822c DJ |
344 | # Check that vfork catchpoints are supported, as an indicator for whether |
345 | # vfork-following is supported. | |
346 | if [runto_main] then { check_vfork_catchpoints } | |
347 | ||
74cf1395 JM |
348 | # Try following the parent process by stepping through a call to |
349 | # vfork. Do this without catchpoints. | |
350 | if [runto_main] then { vfork_parent_follow_through_step } | |
351 | ||
352 | # Try following the parent process by setting a breakpoint on the | |
353 | # other side of a vfork, and running to that point. Do this | |
354 | # without catchpoints. | |
355 | if [runto_main] then { vfork_parent_follow_to_bp } | |
356 | ||
357 | # Try following the child process by just continuing through the | |
358 | # vfork, and letting the parent's breakpoint on "main" be auto- | |
359 | # magically reset in the child. | |
360 | # | |
361 | if [runto_main] then { vfork_and_exec_child_follow_to_main_bp } | |
362 | ||
363 | # Try following the child process by stepping through a call to | |
364 | # vfork. The child also executes an exec. Since the child cannot | |
365 | # be debugged until after it has exec'd, and since there's a bp on | |
366 | # "main" in the parent, and since the bp's for the parent are | |
367 | # recomputed in the exec'd child, the step through a vfork should | |
368 | # land us in the "main" for the exec'd child, too. | |
369 | # | |
370 | if [runto_main] then { vfork_and_exec_child_follow_through_step } | |
371 | ||
372 | # Try catching a vfork, and stepping out to the parent. | |
373 | # | |
374 | if [runto_main] then { tcatch_vfork_then_parent_follow } | |
375 | ||
376 | # Try catching a vfork, and stepping out to the child. | |
377 | # | |
378 | if [runto_main] then { tcatch_vfork_then_child_follow } | |
379 | ||
380 | # Test the ability to follow both child and parent of a vfork. Do | |
381 | # this without catchpoints. | |
382 | # ??rehrauer: NYI. Will add testpoints here when implemented. | |
383 | # | |
384 | ||
385 | # Test the ability to have the debugger ask the user at vfork-time | |
386 | # whether to follow the parent, child or both. Do this without | |
387 | # catchpoints. | |
388 | # ??rehrauer: NYI. Will add testpoints here when implemented. | |
389 | # | |
390 | } | |
391 | ||
392 | # Start with a fresh gdb | |
393 | ||
394 | gdb_exit | |
395 | gdb_start | |
396 | gdb_reinitialize_dir $srcdir/$subdir | |
397 | gdb_load ${binfile} | |
398 | ||
e85a822c DJ |
399 | # The "Detaching..." and "Attaching..." messages may be hidden by |
400 | # default. | |
401 | gdb_test "set verbose" "" | |
74cf1395 JM |
402 | |
403 | # This is a test of gdb's ability to follow the parent or child | |
404 | # of a Unix vfork() system call. (The child will subsequently | |
405 | # call a variant of a Unix exec() system call.) | |
406 | # | |
407 | do_vfork_and_exec_tests | |
408 | ||
409 | set timeout $oldtimeout | |
410 | return 0 |