| 1 | # Copyright 1997, 1999, 2007 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 | |
| 24 | if { ![isnative] } then { |
| 25 | continue |
| 26 | } |
| 27 | |
| 28 | set prms_id 0 |
| 29 | set bug_id 0 |
| 30 | |
| 31 | set testfile "foll-fork" |
| 32 | set srcfile ${testfile}.c |
| 33 | set binfile ${objdir}/${subdir}/${testfile} |
| 34 | |
| 35 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { |
| 36 | untested foll-fork.exp |
| 37 | return -1 |
| 38 | } |
| 39 | |
| 40 | |
| 41 | |
| 42 | # Until "set follow-fork-mode" and "catch fork" are implemented on |
| 43 | # other targets... |
| 44 | # |
| 45 | if ![istarget "hppa*-hp-hpux*"] then { |
| 46 | continue |
| 47 | } |
| 48 | |
| 49 | proc default_fork_parent_follow {} { |
| 50 | global gdb_prompt |
| 51 | |
| 52 | send_gdb "show follow\n" |
| 53 | gdb_expect { |
| 54 | -re "Debugger response to a program call of fork or vfork is \"parent\"..*$gdb_prompt $"\ |
| 55 | {pass "default show parent follow, no catchpoints"} |
| 56 | -re "$gdb_prompt $" {fail "default show parent follow, no catchpoints"} |
| 57 | timeout {fail "(timeout) default show parent follow, no catchpoints"} |
| 58 | } |
| 59 | send_gdb "next 2\n" |
| 60 | gdb_expect { |
| 61 | -re "Detaching after fork from.*$gdb_prompt $"\ |
| 62 | {pass "default parent follow, no catchpoints"} |
| 63 | -re "$gdb_prompt $" {fail "default parent follow, no catchpoints"} |
| 64 | timeout {fail "(timeout) default parent follow, no catchpoints" } |
| 65 | } |
| 66 | # The child has been detached; allow time for any output it might |
| 67 | # generate to arrive, so that output doesn't get confused with |
| 68 | # any expected debugger output from a subsequent testpoint. |
| 69 | # |
| 70 | exec sleep 1 |
| 71 | } |
| 72 | |
| 73 | proc explicit_fork_parent_follow {} { |
| 74 | global gdb_prompt |
| 75 | |
| 76 | send_gdb "set follow parent\n" |
| 77 | gdb_expect { |
| 78 | -re "$gdb_prompt $" {pass "set follow parent"} |
| 79 | timeout {fail "(timeout) set follow parent"} |
| 80 | } |
| 81 | send_gdb "show follow\n" |
| 82 | gdb_expect { |
| 83 | -re "Debugger response to a program call of fork or vfork is \"parent\"..*$gdb_prompt $"\ |
| 84 | {pass "explicit show parent follow, no catchpoints"} |
| 85 | -re "$gdb_prompt $" {fail "explicit show parent follow, no catchpoints"} |
| 86 | timeout {fail "(timeout) explicit show parent follow, no catchpoints"} |
| 87 | } |
| 88 | send_gdb "next 2\n" |
| 89 | gdb_expect { |
| 90 | -re "Detaching after fork from.*$gdb_prompt $"\ |
| 91 | {pass "explicit parent follow, no catchpoints"} |
| 92 | -re "$gdb_prompt $" {fail "explicit parent follow, no catchpoints"} |
| 93 | timeout {fail "(timeout) explicit parent follow, no catchpoints"} |
| 94 | } |
| 95 | # The child has been detached; allow time for any output it might |
| 96 | # generate to arrive, so that output doesn't get confused with |
| 97 | # any expected debugger output from a subsequent testpoint. |
| 98 | # |
| 99 | exec sleep 1 |
| 100 | } |
| 101 | |
| 102 | proc explicit_fork_child_follow {} { |
| 103 | global gdb_prompt |
| 104 | |
| 105 | send_gdb "set follow child\n" |
| 106 | gdb_expect { |
| 107 | -re "$gdb_prompt $" {pass "set follow child"} |
| 108 | timeout {fail "(timeout) set follow child"} |
| 109 | } |
| 110 | send_gdb "show follow\n" |
| 111 | gdb_expect { |
| 112 | -re "Debugger response to a program call of fork or vfork is \"child\"..*$gdb_prompt $"\ |
| 113 | {pass "explicit show child follow, no catchpoints"} |
| 114 | -re "$gdb_prompt $" {fail "explicit show child follow, no catchpoints"} |
| 115 | timeout {fail "(timeout) explicit show child follow, no catchpoints"} |
| 116 | } |
| 117 | send_gdb "next 2\n" |
| 118 | gdb_expect { |
| 119 | -re "Detaching from program:.*Attaching after fork to.*$gdb_prompt $"\ |
| 120 | {pass "explicit child follow, no catchpoints"} |
| 121 | -re "$gdb_prompt $" {fail "explicit child follow, no catchpoints"} |
| 122 | timeout {fail "(timeout) explicit child follow, no catchpoints"} |
| 123 | } |
| 124 | # The child has been detached; allow time for any output it might |
| 125 | # generate to arrive, so that output doesn't get confused with |
| 126 | # any gdb_expected debugger output from a subsequent testpoint. |
| 127 | # |
| 128 | exec sleep 1 |
| 129 | } |
| 130 | |
| 131 | proc catch_fork_child_follow {} { |
| 132 | global gdb_prompt |
| 133 | |
| 134 | send_gdb "catch fork\n" |
| 135 | gdb_expect { |
| 136 | -re "Catchpoint .*(fork).*$gdb_prompt $"\ |
| 137 | {pass "explicit child follow, set catch fork"} |
| 138 | -re "$gdb_prompt $" {fail "explicit child follow, set catch fork"} |
| 139 | timeout {fail "(timeout) explicit child follow, set catch fork"} |
| 140 | } |
| 141 | |
| 142 | # Verify that the catchpoint is mentioned in an "info breakpoints", |
| 143 | # and further that the catchpoint mentions no process id. |
| 144 | # |
| 145 | send_gdb "info breakpoints\n" |
| 146 | gdb_expect { |
| 147 | -re ".*catch fork.*keep y.*$gdb_prompt $"\ |
| 148 | {pass "info shows catchpoint without pid"} |
| 149 | -re ".*catch fork.*process .*$gdb_prompt $"\ |
| 150 | {fail "info shows catchpoint without pid"} |
| 151 | -re "$gdb_prompt $" {fail "info shows catchpoint without pid"} |
| 152 | timeout {fail "(timeout) info shows catchpoint without pid"} |
| 153 | } |
| 154 | |
| 155 | send_gdb "continue\n" |
| 156 | gdb_expect { |
| 157 | -re "Catchpoint.*(forked process.*),.*in _fork_sys.*$gdb_prompt $"\ |
| 158 | {pass "explicit child follow, catch fork"} |
| 159 | -re "$gdb_prompt $" {fail "explicit child follow, catch fork"} |
| 160 | timeout {fail "(timeout) explicit child follow, catch fork"} |
| 161 | } |
| 162 | |
| 163 | # Verify that the catchpoint is mentioned in an "info breakpoints", |
| 164 | # and further that the catchpoint managed to capture a process id. |
| 165 | # |
| 166 | send_gdb "info breakpoints\n" |
| 167 | gdb_expect { |
| 168 | -re ".*catch fork .*process \[0-9\]+.*$gdb_prompt $"\ |
| 169 | {pass "info shows catchpoint pid"} |
| 170 | -re "$gdb_prompt $" {fail "info shows catchpoint pid"} |
| 171 | timeout {fail "(timeout) info shows catchpoint pid"} |
| 172 | } |
| 173 | |
| 174 | send_gdb "set follow child\n" |
| 175 | gdb_expect { |
| 176 | -re "$gdb_prompt $" {pass "set follow child"} |
| 177 | timeout {fail "(timeout) set follow child"} |
| 178 | } |
| 179 | send_gdb "tbreak 24\n" |
| 180 | gdb_expect { |
| 181 | -re "Breakpoint.*, line 24.*$gdb_prompt $"\ |
| 182 | {pass "set follow child, tbreak"} |
| 183 | -re "$gdb_prompt $" {fail "set follow child, tbreak"} |
| 184 | timeout {fail "(timeout) set follow child, tbreak"} |
| 185 | } |
| 186 | send_gdb "continue\n" |
| 187 | gdb_expect { |
| 188 | -re ".*Detaching from program:.*Attaching after fork to.* at .*24.*$gdb_prompt $"\ |
| 189 | {pass "set follow child, hit tbreak"} |
| 190 | -re "$gdb_prompt $" {fail "set follow child, hit tbreak"} |
| 191 | timeout {fail "(timeout) set follow child, hit tbreak"} |
| 192 | } |
| 193 | # The child has been detached; allow time for any output it might |
| 194 | # generate to arrive, so that output doesn't get confused with |
| 195 | # any expected debugger output from a subsequent testpoint. |
| 196 | # |
| 197 | exec sleep 1 |
| 198 | send_gdb "delete breakpoints\n" |
| 199 | gdb_expect { |
| 200 | -re "Delete all breakpoints.*$" { |
| 201 | send_gdb "y\n" |
| 202 | gdb_expect { |
| 203 | -re "$gdb_prompt $"\ |
| 204 | {pass "set follow child, cleanup"} |
| 205 | timeout {fail "(timeout) set follow child, cleanup"} |
| 206 | } |
| 207 | } |
| 208 | -re "$gdb_prompt $" {fail "set follow child, cleanup"} |
| 209 | timeout {fail "(timeout) set follow child, cleanup"} |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | proc tcatch_fork_parent_follow {} { |
| 214 | global gdb_prompt |
| 215 | |
| 216 | send_gdb "catch fork\n" |
| 217 | gdb_expect { |
| 218 | -re "Catchpoint .*(fork).*$gdb_prompt $"\ |
| 219 | {pass "explicit parent follow, set tcatch fork"} |
| 220 | -re "$gdb_prompt $" {fail "explicit parent follow, set tcatch fork"} |
| 221 | timeout {fail "(timeout) explicit parent follow, set tcatch fork"} |
| 222 | } |
| 223 | # ??rehrauer: I don't yet know how to get the id of the tcatch |
| 224 | # via this script, so that I can add a -do list to it. For now, |
| 225 | # do the follow stuff after the catch happens. |
| 226 | |
| 227 | send_gdb "continue\n" |
| 228 | gdb_expect { |
| 229 | -re ".*in _fork_sys.*$gdb_prompt $"\ |
| 230 | {pass "explicit parent follow, tcatch fork"} |
| 231 | -re "$gdb_prompt $" {fail "explicit parent follow, tcatch fork"} |
| 232 | timeout {fail "(timeout) explicit parent follow, tcatch fork"} |
| 233 | } |
| 234 | send_gdb "set follow parent\n" |
| 235 | gdb_expect { |
| 236 | -re "$gdb_prompt $" {pass "set follow parent"} |
| 237 | timeout {fail "(timeout) set follow parent"} |
| 238 | } |
| 239 | send_gdb "tbreak 24\n" |
| 240 | gdb_expect { |
| 241 | -re "Breakpoint.*, line 24.*$gdb_prompt $"\ |
| 242 | {pass "set follow parent, tbreak"} |
| 243 | -re "$gdb_prompt $" {fail "set follow parent, tbreak"} |
| 244 | timeout {fail "(timeout) set follow child, tbreak"} |
| 245 | } |
| 246 | send_gdb "continue\n" |
| 247 | gdb_expect { |
| 248 | -re ".*Detaching after fork from.* at .*24.*$gdb_prompt $"\ |
| 249 | {pass "set follow parent, hit tbreak"} |
| 250 | -re "$gdb_prompt $" {fail "set follow parent, hit tbreak"} |
| 251 | timeout {fail "(timeout) set follow parent, hit tbreak"} |
| 252 | } |
| 253 | # The child has been detached; allow time for any output it might |
| 254 | # generate to arrive, so that output doesn't get confused with |
| 255 | # any expected debugger output from a subsequent testpoint. |
| 256 | # |
| 257 | exec sleep 1 |
| 258 | send_gdb "delete breakpoints\n" |
| 259 | gdb_expect { |
| 260 | -re "Delete all breakpoints.*$" { |
| 261 | send_gdb "y\n" |
| 262 | gdb_expect { |
| 263 | -re "$gdb_prompt $"\ |
| 264 | {pass "set follow parent, cleanup"} |
| 265 | timeout {fail "(timeout) set follow parent, cleanup"} |
| 266 | } |
| 267 | } |
| 268 | -re "$gdb_prompt $" {fail "set follow parent, cleanup"} |
| 269 | timeout {fail "(timeout) set follow parent, cleanup"} |
| 270 | } |
| 271 | } |
| 272 | |
| 273 | proc do_fork_tests {} { |
| 274 | global gdb_prompt |
| 275 | |
| 276 | # Verify that help is available for "set follow-fork-mode". |
| 277 | # |
| 278 | send_gdb "help set follow-fork-mode\n" |
| 279 | gdb_expect { |
| 280 | -re "Set debugger response to a program call of fork or vfork..* |
| 281 | A fork or vfork creates a new process. follow-fork-mode can be:.* |
| 282 | .*parent - the original process is debugged after a fork.* |
| 283 | .*child - the new process is debugged after a fork.* |
| 284 | The unfollowed process will continue to run..* |
| 285 | By default, the debugger will follow the parent process..*$gdb_prompt $"\ |
| 286 | { pass "help set follow" } |
| 287 | -re "$gdb_prompt $" { fail "help set follow" } |
| 288 | timeout { fail "(timeout) help set follow" } |
| 289 | } |
| 290 | |
| 291 | # Verify that we can set follow-fork-mode, using an abbreviation |
| 292 | # for both the flag and its value. |
| 293 | # |
| 294 | send_gdb "set follow ch\n" |
| 295 | send_gdb "show fol\n" |
| 296 | gdb_expect { |
| 297 | -re "Debugger response to a program call of fork or vfork is \"child\".*$gdb_prompt $"\ |
| 298 | {pass "set follow, using abbreviations"} |
| 299 | timeout {fail "(timeout) set follow, using abbreviations"} |
| 300 | } |
| 301 | |
| 302 | # Verify that we cannot set follow-fork-mode to nonsense. |
| 303 | # |
| 304 | send_gdb "set follow chork\n" |
| 305 | gdb_expect { |
| 306 | -re "Undefined item: \"chork\".*$gdb_prompt $"\ |
| 307 | {pass "set follow to nonsense is prohibited"} |
| 308 | -re "$gdb_prompt $" {fail "set follow to nonsense is prohibited"} |
| 309 | timeout {fail "(timeout) set follow to nonsense is prohibited"} |
| 310 | } |
| 311 | send_gdb "set follow parent\n" |
| 312 | gdb_expect { |
| 313 | -re "$gdb_prompt $" {pass "set follow to nonsense is prohibited (reset parent)"} |
| 314 | timeout {fail "set follow to nonsense is prohibited (reset parent)"} |
| 315 | } |
| 316 | |
| 317 | # Test the default behaviour, which is to follow the parent of a |
| 318 | # fork, and detach from the child. Do this without catchpoints. |
| 319 | # |
| 320 | if [runto_main] then { default_fork_parent_follow } |
| 321 | |
| 322 | # Test the ability to explicitly follow the parent of a fork, and |
| 323 | # detach from the child. Do this without catchpoints. |
| 324 | # |
| 325 | if [runto_main] then { explicit_fork_parent_follow } |
| 326 | |
| 327 | # Test the ability to follow the child of a fork, and detach from |
| 328 | # the parent. Do this without catchpoints. |
| 329 | # |
| 330 | if [runto_main] then { explicit_fork_child_follow } |
| 331 | |
| 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. |
| 335 | # |
| 336 | |
| 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 |
| 339 | # catchpoints. |
| 340 | # ??rehrauer: NYI. Will add testpoints here when implemented. |
| 341 | # |
| 342 | |
| 343 | # Test the ability to catch a fork, specify that the child be |
| 344 | # followed, and continue. Make the catchpoint permanent. |
| 345 | # |
| 346 | if [runto_main] then { catch_fork_child_follow } |
| 347 | |
| 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. |
| 350 | # |
| 351 | if [runto_main] then { tcatch_fork_parent_follow } |
| 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, child or both |
| 363 | # parent and child of a Unix fork() system call. |
| 364 | # |
| 365 | do_fork_tests |
| 366 | |
| 367 | return 0 |