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213516ef | 1 | # Copyright 1997-2023 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 | |
e22f8b7c | 5 | # the Free Software Foundation; either version 3 of the License, or |
74cf1395 | 6 | # (at your option) any later version. |
e22f8b7c | 7 | # |
74cf1395 JM |
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. | |
e22f8b7c | 12 | # |
74cf1395 | 13 | # You should have received a copy of the GNU General Public License |
e85a822c | 14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
74cf1395 | 15 | |
2fd33e94 DB |
16 | # This is a test of gdb's ability to follow a process through a |
17 | # Unix exec() system call. | |
18 | ||
2d4e0376 YQ |
19 | # Until "catch exec" is implemented on other targets... |
20 | # | |
65a33d75 | 21 | if {![istarget "*-linux*"]} { |
cdd42066 | 22 | return |
2d4e0376 | 23 | } |
74cf1395 | 24 | |
289f9037 TT |
25 | standard_testfile foll-exec.c |
26 | ||
74cf1395 | 27 | set testfile2 "execd-prog" |
74cf1395 | 28 | set srcfile2 ${testfile2}.c |
289f9037 | 29 | set binfile2 [standard_output_file ${testfile2}] |
74cf1395 | 30 | |
3fef966c | 31 | set compile_options debug |
3fef966c | 32 | |
74cf1395 | 33 | # build the first test case |
3fef966c | 34 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile2}" "${binfile2}" executable $compile_options] != "" } { |
5b362f04 | 35 | untested "failed to compile" |
b60f0898 | 36 | return -1 |
74cf1395 JM |
37 | } |
38 | ||
b108c563 TV |
39 | if { [is_remote target] } { |
40 | gdb_remote_download target $binfile2 | |
41 | } | |
42 | ||
3fef966c | 43 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $compile_options] != "" } { |
5b362f04 | 44 | untested "failed to compile" |
b60f0898 | 45 | return -1 |
74cf1395 JM |
46 | } |
47 | ||
74cf1395 | 48 | proc do_exec_tests {} { |
2fd33e94 | 49 | global binfile srcfile srcfile2 testfile testfile2 |
74cf1395 | 50 | global gdb_prompt |
74cf1395 JM |
51 | |
52 | # Start the program running, and stop at main. | |
53 | # | |
65a33d75 | 54 | if {![runto_main]} { |
74cf1395 JM |
55 | return |
56 | } | |
57 | ||
e85a822c DJ |
58 | # Verify that the system supports "catch exec". |
59 | gdb_test "catch exec" "Catchpoint \[0-9\]* \\(exec\\)" "insert first exec catchpoint" | |
60 | set has_exec_catchpoints 0 | |
61 | gdb_test_multiple "continue" "continue to first exec catchpoint" { | |
77b06cd7 | 62 | -re ".*Your system does not support this type\r\nof catchpoint.*$gdb_prompt $" { |
e85a822c DJ |
63 | unsupported "continue to first exec catchpoint" |
64 | } | |
65 | -re ".*Catchpoint.*$gdb_prompt $" { | |
66 | set has_exec_catchpoints 1 | |
67 | pass "continue to first exec catchpoint" | |
68 | } | |
69 | } | |
70 | ||
71 | if {$has_exec_catchpoints == 0} { | |
72 | unsupported "exec catchpoints" | |
73 | return | |
74 | } | |
75 | ||
2fd33e94 | 76 | clean_restart $binfile |
e85a822c DJ |
77 | |
78 | # Start the program running, and stop at main. | |
79 | # | |
65a33d75 | 80 | if {![runto_main]} { |
e85a822c DJ |
81 | return |
82 | } | |
c2b75043 LM |
83 | |
84 | with_test_prefix "1st run" { | |
85 | # Execute the code setting up variable PROG. | |
86 | set tbreak_line [gdb_get_line_number " tbreak-execlp " $srcfile] | |
87 | gdb_test "tbreak ${tbreak_line}" "" "insert breakpoint" | |
88 | gdb_continue_to_breakpoint "line tbreak-execlp" ".*execlp \\(.*" | |
89 | } | |
e85a822c | 90 | |
74cf1395 JM |
91 | # Verify that we can see various global and local variables |
92 | # in this program, and that they have expected values. Some | |
93 | # of these variables are also declared in the program we'll | |
94 | # exec in a moment. | |
95 | # | |
31d913c7 | 96 | |
74cf1395 JM |
97 | send_gdb "print global_i\n" |
98 | gdb_expect { | |
99 | -re ".* = 100.*$gdb_prompt $"\ | |
100 | {pass "print follow-exec/global_i"} | |
101 | -re "$gdb_prompt $" {fail "print follow-exec/global_i"} | |
102 | timeout {fail "(timeout) print follow-exec/global_i"} | |
103 | } | |
104 | send_gdb "print local_j\n" | |
105 | gdb_expect { | |
106 | -re ".* = 101.*$gdb_prompt $"\ | |
107 | {pass "print follow-exec/local_j"} | |
108 | -re "$gdb_prompt $" {fail "print follow-exec/local_j"} | |
109 | timeout {fail "(timeout) print follow-exec/local_j"} | |
110 | } | |
111 | send_gdb "print local_k\n" | |
112 | gdb_expect { | |
113 | -re ".* = 102.*$gdb_prompt $"\ | |
114 | {pass "print follow-exec/local_k"} | |
115 | -re "$gdb_prompt $" {fail "print follow-exec/local_k"} | |
116 | timeout {fail "(timeout) print follow-exec/local_k"} | |
117 | } | |
118 | ||
119 | # Try stepping through an execlp call, without catching it. | |
120 | # We should stop in execd-program, at its first statement. | |
121 | # | |
58fa2af0 | 122 | set execd_line [gdb_get_line_number "after-exec" $srcfile2] |
74cf1395 JM |
123 | send_gdb "next\n" |
124 | gdb_expect { | |
58fa2af0 | 125 | -re ".*xecuting new program: .*${testfile2}.*${srcfile2}:${execd_line}.*int local_j = argc;.*$gdb_prompt $"\ |
74cf1395 JM |
126 | {pass "step through execlp call"} |
127 | -re "$gdb_prompt $" {fail "step through execlp call"} | |
128 | timeout {fail "(timeout) step through execlp call"} | |
129 | } | |
130 | ||
131 | # Verify that we can see the variables defined in the newly-exec'd | |
132 | # program, and CANNOT see those defined in the exec'ing program. | |
133 | # | |
134 | send_gdb "next\n" | |
135 | gdb_expect { | |
58fa2af0 | 136 | -re "printf \\(.Hello .*$gdb_prompt $"\ |
74cf1395 JM |
137 | {pass "step after execlp call"} |
138 | -re "$gdb_prompt $" {fail "step after execlp call"} | |
139 | timeout {fail "(timeout) step after execlp call"} | |
140 | } | |
141 | send_gdb "print global_i\n" | |
142 | gdb_expect { | |
143 | -re ".* = 0.*$gdb_prompt $"\ | |
144 | {pass "print execd-program/global_i (after execlp)"} | |
145 | -re "$gdb_prompt $" {fail "print execd-program/global_i (after execlp)"} | |
146 | timeout {fail "(timeout) print execd-program/global_i (after execlp)"} | |
147 | } | |
148 | send_gdb "print local_j\n" | |
149 | gdb_expect { | |
150 | -re ".* = 2.*$gdb_prompt $"\ | |
151 | {pass "print execd-program/local_j (after execlp)"} | |
152 | -re "$gdb_prompt $" {fail "print execd-program/local_j (after execlp)"} | |
153 | timeout {fail "(timeout) print execd-program/local_j (after execlp)"} | |
154 | } | |
155 | send_gdb "print local_k\n" | |
156 | gdb_expect { | |
157 | -re "No symbol \"local_k\" in current context.*$gdb_prompt $"\ | |
158 | {pass "print follow-exec/local_k (after execlp)"} | |
159 | -re "$gdb_prompt $" {fail "print follow-exec/local_k (after execlp)"} | |
160 | timeout {fail "(timeout) print follow-exec/local_k (after execlp)"} | |
161 | } | |
162 | ||
163 | # Explicitly kill this program, or a subsequent rerun actually runs | |
164 | # the exec'd program, not the original program... | |
2fd33e94 | 165 | clean_restart $binfile |
74cf1395 JM |
166 | |
167 | # Start the program running, and stop at main. | |
168 | # | |
65a33d75 | 169 | if {![runto_main]} { |
74cf1395 JM |
170 | return |
171 | } | |
172 | ||
173 | # Verify that we can catch an exec event, and then continue | |
174 | # to follow through the exec. (Since there's a breakpoint on | |
175 | # "main", it'll also be transferred to the exec'd program, | |
176 | # and we expect to stop there.) | |
177 | # | |
178 | send_gdb "catch exec\n" | |
179 | gdb_expect { | |
180 | -re "Catchpoint .*(exec).*$gdb_prompt $"\ | |
181 | {pass "set catch exec"} | |
182 | -re "$gdb_prompt $" {fail "set catch exec"} | |
183 | timeout {fail "(timeout) set catch exec"} | |
184 | } | |
185 | ||
186 | # Verify that the catchpoint is mentioned in an "info breakpoints", | |
187 | # and further that the catchpoint mentions no program name. | |
188 | # | |
462f405c JB |
189 | set msg "info shows catchpoint without exec pathname" |
190 | gdb_test_multiple "info breakpoints" $msg { | |
191 | -re ".*catchpoint.*keep y.*exec\[\n\r\]+$gdb_prompt $" { | |
192 | pass $msg | |
193 | } | |
74cf1395 JM |
194 | } |
195 | ||
74cf1395 JM |
196 | send_gdb "continue\n" |
197 | gdb_expect { | |
b129b0ca | 198 | -re ".*xecuting new program:.*${testfile2}.*Catchpoint .*(exec\'d .*${testfile2}).*$gdb_prompt $"\ |
74cf1395 JM |
199 | {pass "hit catch exec"} |
200 | -re "$gdb_prompt $" {fail "hit catch exec"} | |
201 | timeout {fail "(timeout) hit catch exec"} | |
202 | } | |
203 | ||
204 | # DTS CLLbs16760 | |
205 | # test gets out of sync if previous test fails. | |
206 | gdb_test "bt" ".*" "sync up after possible failure 1" | |
207 | gdb_test "bt" "#0.*" "sync up after possible failure 2" | |
208 | ||
209 | # Verify that the catchpoint is mentioned in an "info breakpoints", | |
210 | # and further that the catchpoint managed to capture the exec'd | |
211 | # program's name. | |
212 | # | |
462f405c JB |
213 | set msg "info shows catchpoint exec pathname" |
214 | gdb_test_multiple "info breakpoints" $msg { | |
215 | -re ".*catchpoint.*keep y.*exec, program \".*${testfile2}\".*$gdb_prompt $" { | |
216 | pass $msg | |
217 | } | |
74cf1395 JM |
218 | } |
219 | ||
220 | # Verify that we can continue from the catchpoint, and land in the | |
221 | # main of the newly-exec'd program. | |
222 | # | |
223 | send_gdb "continue\n" | |
224 | gdb_expect { | |
58fa2af0 | 225 | -re ".*${srcfile2}:${execd_line}.*$gdb_prompt $"\ |
74cf1395 JM |
226 | {pass "continue after hit catch exec"} |
227 | -re "$gdb_prompt $" {fail "continue after hit catch exec"} | |
228 | timeout {fail "(timeout) continue after hit catch exec"} | |
229 | } | |
230 | ||
231 | # Explicitly kill this program, or a subsequent rerun actually runs | |
232 | # the exec'd program, not the original program... | |
2fd33e94 | 233 | clean_restart $binfile |
74cf1395 JM |
234 | |
235 | # Start the program running, and stop at main. | |
236 | # | |
65a33d75 | 237 | if {![runto_main]} { |
74cf1395 JM |
238 | return |
239 | } | |
c2b75043 LM |
240 | |
241 | with_test_prefix "2nd run" { | |
242 | # Execute the code setting up variable PROG. | |
243 | set tbreak_line [gdb_get_line_number " tbreak-execlp " $srcfile] | |
244 | gdb_test "tbreak ${tbreak_line}" "" "insert breakpoint" | |
245 | gdb_continue_to_breakpoint "line tbreak-execlp" ".*execlp \\(.*" | |
246 | } | |
74cf1395 JM |
247 | |
248 | # Verify that we can follow through follow an execl() | |
249 | # call. (We must jump around earlier exec* calls.) | |
250 | # | |
31d913c7 | 251 | set tbreak_line [gdb_get_line_number " tbreak-execl " $srcfile] |
58fa2af0 | 252 | send_gdb "tbreak ${tbreak_line}\n" |
74cf1395 | 253 | gdb_expect { |
58fa2af0 | 254 | -re "Temporary breakpoint .*file .*${srcfile}, line ${tbreak_line}.*$gdb_prompt $"\ |
74cf1395 JM |
255 | {pass "prepare to jump to execl call"} |
256 | -re "$gdb_prompt $" {fail "prepare to jump to execl call"} | |
257 | timeout {fail "(timeout) prepare to jump to execl call"} | |
258 | } | |
58fa2af0 | 259 | send_gdb "jump ${tbreak_line}\n" |
74cf1395 | 260 | gdb_expect { |
58fa2af0 | 261 | -re "main.* at .*${srcfile}:${tbreak_line}.*$gdb_prompt $"\ |
74cf1395 JM |
262 | {pass "jump to execl call"} |
263 | -re "$gdb_prompt $" {fail "jump to execl call"} | |
264 | timeout {fail "(timeout) jump to execl call"} | |
265 | } | |
266 | # Note that stepping through an exec call causes the step-count | |
267 | # to be reset to zero. I.e.: you may specify "next 2" at the | |
268 | # call, but you'll actually stop at the first breakpoint set in | |
269 | # the newly-exec'd program, not after the remaining step-count | |
270 | # reaches zero. | |
271 | # | |
272 | send_gdb "next 2\n" | |
273 | gdb_expect { | |
58fa2af0 | 274 | -re ".*xecuting new program: .*${testfile2}.*${srcfile2}:${execd_line}.*int local_j = argc;.*$gdb_prompt $"\ |
74cf1395 JM |
275 | {pass "step through execl call"} |
276 | -re "$gdb_prompt $" {fail "step through execl call"} | |
277 | timeout {fail "(timeout) step through execl call"} | |
278 | } | |
279 | send_gdb "next\n" | |
280 | gdb_expect { | |
58fa2af0 | 281 | -re "printf \\(.Hello .*$gdb_prompt $"\ |
74cf1395 JM |
282 | {pass "step after execl call"} |
283 | -re "$gdb_prompt $" {fail "step after execl call"} | |
284 | timeout {fail "(timeout) step after execl call"} | |
285 | } | |
286 | ||
287 | # Verify that we can print a local variable (which happens to be | |
288 | # assigned the value of main's argc). | |
289 | # | |
290 | send_gdb "print local_j\n" | |
291 | gdb_expect { | |
292 | -re ".* = 3.*$gdb_prompt $"\ | |
293 | {pass "print execd-program/local_j (after execl)"} | |
294 | -re "$gdb_prompt $" {fail "print execd-program/local_j (after execl)"} | |
295 | timeout {fail "(timeout) print execd-program/local_j (after execl)"} | |
296 | } | |
297 | ||
298 | # Explicitly kill this program, or a subsequent rerun actually runs | |
299 | # the exec'd program, not the original program... | |
2fd33e94 | 300 | clean_restart $binfile |
74cf1395 JM |
301 | |
302 | # Start the program running, and stop at main. | |
303 | # | |
65a33d75 | 304 | if {![runto_main]} { |
74cf1395 JM |
305 | return |
306 | } | |
c2b75043 LM |
307 | |
308 | with_test_prefix "3rd run" { | |
309 | # Execute the code setting up variable PROG. | |
310 | set tbreak_line [gdb_get_line_number " tbreak-execlp " $srcfile] | |
311 | gdb_test "tbreak ${tbreak_line}" "" "insert breakpoint" | |
312 | gdb_continue_to_breakpoint "line tbreak-execlp" ".*execlp \\(.*" | |
313 | } | |
74cf1395 JM |
314 | |
315 | # Verify that we can follow through follow an execv() | |
316 | # call. (We must jump around earlier exec* calls.) | |
317 | # | |
58fa2af0 AA |
318 | set tbreak_line [gdb_get_line_number "tbreak-execv"] |
319 | send_gdb "tbreak ${tbreak_line}\n" | |
74cf1395 | 320 | gdb_expect { |
58fa2af0 | 321 | -re "Temporary breakpoint .*file .*${srcfile}, line ${tbreak_line}.*$gdb_prompt $"\ |
74cf1395 JM |
322 | {pass "prepare to jump to execv call"} |
323 | -re "$gdb_prompt $" {fail "prepare to jump to execv call"} | |
324 | timeout {fail "(timeout) prepare to jump to execv call"} | |
325 | } | |
58fa2af0 | 326 | send_gdb "jump ${tbreak_line}\n" |
74cf1395 | 327 | gdb_expect { |
58fa2af0 | 328 | -re "main.* at .*${srcfile}:${tbreak_line}.*$gdb_prompt $"\ |
74cf1395 JM |
329 | {pass "jump to execv call"} |
330 | -re "$gdb_prompt $" {fail "jump to execv call"} | |
331 | timeout {fail "(timeout) jump to execv call"} | |
332 | } | |
333 | send_gdb "next\n" | |
334 | gdb_expect { | |
58fa2af0 | 335 | -re ".*xecuting new program: .*${testfile2}.*${srcfile2}:${execd_line}.*int local_j = argc;.*$gdb_prompt $"\ |
74cf1395 JM |
336 | {pass "step through execv call"} |
337 | -re "$gdb_prompt $" {fail "step through execv call"} | |
338 | timeout {fail "(timeout) step through execv call"} | |
339 | } | |
340 | send_gdb "next\n" | |
341 | gdb_expect { | |
58fa2af0 | 342 | -re "printf \\(.Hello .*$gdb_prompt $"\ |
74cf1395 JM |
343 | {pass "step after execv call"} |
344 | -re "$gdb_prompt $" {fail "step after execv call"} | |
345 | timeout {fail "(timeout) step after execv call"} | |
346 | } | |
347 | ||
348 | # Verify that we can print a local variable (which happens to be | |
349 | # assigned the value of main's argc). | |
350 | # | |
351 | send_gdb "print local_j\n" | |
352 | gdb_expect { | |
353 | -re ".* = 2.*$gdb_prompt $"\ | |
354 | {pass "print execd-program/local_j (after execv)"} | |
355 | -re "$gdb_prompt $" {fail "print execd-program/local_j (after execv)"} | |
356 | timeout {fail "(timeout) print execd-program/local_j (after execv)"} | |
357 | } | |
358 | ||
359 | # Explicitly kill this program, or a subsequent rerun actually runs | |
360 | # the exec'd program, not the original program... | |
2fd33e94 | 361 | clean_restart $binfile |
74cf1395 JM |
362 | |
363 | # Start the program running, and stop at main. | |
364 | # | |
65a33d75 | 365 | if {![runto_main]} { |
74cf1395 JM |
366 | return |
367 | } | |
368 | ||
369 | # Verify that we can just continue and thereby follow through an | |
370 | # exec call. (Since the breakpoint on "main" is reset, we should | |
371 | # just stop in main of the newly-exec'd program.) | |
372 | # | |
373 | send_gdb "continue\n" | |
374 | gdb_expect { | |
58fa2af0 | 375 | -re ".*xecuting new program: .*${testfile2}.*${srcfile2}:${execd_line}.*int local_j = argc;.*$gdb_prompt $"\ |
74cf1395 JM |
376 | {pass "continue through exec"} |
377 | -re "$gdb_prompt $" {fail "continue through exec"} | |
378 | timeout {fail "(timeout) continue through exec"} | |
379 | } | |
380 | } | |
381 | ||
382 | # Start with a fresh gdb | |
383 | ||
384 | gdb_exit | |
2fd33e94 | 385 | clean_restart $binfile |
74cf1395 | 386 | |
74cf1395 JM |
387 | do_exec_tests |
388 | ||
389 | return 0 |