diff options
Diffstat (limited to 'gdb/testsuite/gdb.base/foll-fork.exp')
| -rw-r--r-- | gdb/testsuite/gdb.base/foll-fork.exp | 363 |
1 files changed, 363 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.base/foll-fork.exp b/gdb/testsuite/gdb.base/foll-fork.exp new file mode 100644 index 00000000000..23afedd863b --- /dev/null +++ b/gdb/testsuite/gdb.base/foll-fork.exp @@ -0,0 +1,363 @@ +# Copyright (C) 1997 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +# Please email any bugs, comments, and/or additions to this file to: +# bug-gdb@prep.ai.mit.edu + +if $tracelevel then { + strace $tracelevel + } + +set prms_id 0 +set bug_id 0 + +set testfile "foll-fork" +set srcfile ${testfile}.c +set binfile ${objdir}/${subdir}/${testfile} + +if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { + gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail." +} + + + +# Until "set follow-fork-mode" and "catch fork" are implemented on +# other targets... +# +if ![istarget "hppa*-hp-hpux*"] then { + continue +} + +proc default_fork_parent_follow {} { + global gdb_prompt + + send_gdb "show follow\n" + gdb_expect { + -re "Debugger response to a program call of fork or vfork is \"parent\"..*$gdb_prompt $"\ + {pass "default show parent follow, no catchpoints"} + -re "$gdb_prompt $" {fail "default show parent follow, no catchpoints"} + timeout {fail "(timeout) default show parent follow, no catchpoints"} + } + send_gdb "next 2\n" + gdb_expect { + -re "Detaching after fork from.*$gdb_prompt $"\ + {pass "default parent follow, no catchpoints"} + -re "$gdb_prompt $" {fail "default parent follow, no catchpoints"} + timeout {fail "(timeout) default parent follow, no catchpoints" } + } + # The child has been detached; allow time for any output it might + # generate to arrive, so that output doesn't get confused with + # any expected debugger output from a subsequent testpoint. + # + exec sleep 1 +} + +proc explicit_fork_parent_follow {} { + global gdb_prompt + + send_gdb "set follow parent\n" + gdb_expect { + -re "$gdb_prompt $" {pass "set follow parent"} + timeout {fail "(timeout) set follow parent"} + } + send_gdb "show follow\n" + gdb_expect { + -re "Debugger response to a program call of fork or vfork is \"parent\"..*$gdb_prompt $"\ + {pass "explicit show parent follow, no catchpoints"} + -re "$gdb_prompt $" {fail "explicit show parent follow, no catchpoints"} + timeout {fail "(timeout) explicit show parent follow, no catchpoints"} + } + send_gdb "next 2\n" + gdb_expect { + -re "Detaching after fork from.*$gdb_prompt $"\ + {pass "explicit parent follow, no catchpoints"} + -re "$gdb_prompt $" {fail "explicit parent follow, no catchpoints"} + timeout {fail "(timeout) explicit parent follow, no catchpoints"} + } + # The child has been detached; allow time for any output it might + # generate to arrive, so that output doesn't get confused with + # any expected debugger output from a subsequent testpoint. + # + exec sleep 1 +} + +proc explicit_fork_child_follow {} { + global gdb_prompt + + send_gdb "set follow child\n" + gdb_expect { + -re "$gdb_prompt $" {pass "set follow child"} + timeout {fail "(timeout) set follow child"} + } + send_gdb "show follow\n" + gdb_expect { + -re "Debugger response to a program call of fork or vfork is \"child\"..*$gdb_prompt $"\ + {pass "explicit show child follow, no catchpoints"} + -re "$gdb_prompt $" {fail "explicit show child follow, no catchpoints"} + timeout {fail "(timeout) explicit show child follow, no catchpoints"} + } + send_gdb "next 2\n" + gdb_expect { + -re "Detaching from program:.*Attaching after fork to.*$gdb_prompt $"\ + {pass "explicit child follow, no catchpoints"} + -re "$gdb_prompt $" {fail "explicit child follow, no catchpoints"} + timeout {fail "(timeout) explicit child follow, no catchpoints"} + } + # The child has been detached; allow time for any output it might + # generate to arrive, so that output doesn't get confused with + # any gdb_expected debugger output from a subsequent testpoint. + # + exec sleep 1 +} + +proc catch_fork_child_follow {} { + global gdb_prompt + + send_gdb "catch fork\n" + gdb_expect { + -re "Catchpoint .*(fork).*$gdb_prompt $"\ + {pass "explicit child follow, set catch fork"} + -re "$gdb_prompt $" {fail "explicit child follow, set catch fork"} + timeout {fail "(timeout) explicit child follow, set catch fork"} + } + + # Verify that the catchpoint is mentioned in an "info breakpoints", + # and further that the catchpoint mentions no process id. + # + send_gdb "info breakpoints\n" + gdb_expect { + -re ".*catch fork.*keep y.*$gdb_prompt $"\ + {pass "info shows catchpoint without pid"} + -re ".*catch fork.*process .*$gdb_prompt $"\ + {fail "info shows catchpoint without pid"} + -re "$gdb_prompt $" {fail "info shows catchpoint without pid"} + timeout {fail "(timeout) info shows catchpoint without pid"} + } + + send_gdb "continue\n" + gdb_expect { + -re "Catchpoint.*(forked process.*),.*in _fork_sys.*$gdb_prompt $"\ + {pass "explicit child follow, catch fork"} + -re "$gdb_prompt $" {fail "explicit child follow, catch fork"} + timeout {fail "(timeout) explicit child follow, catch fork"} + } + + # Verify that the catchpoint is mentioned in an "info breakpoints", + # and further that the catchpoint managed to capture a process id. + # + send_gdb "info breakpoints\n" + gdb_expect { + -re ".*catch fork .*process \[0-9\]+.*$gdb_prompt $"\ + {pass "info shows catchpoint pid"} + -re "$gdb_prompt $" {fail "info shows catchpoint pid"} + timeout {fail "(timeout) info shows catchpoint pid"} + } + + send_gdb "set follow child\n" + gdb_expect { + -re "$gdb_prompt $" {pass "set follow child"} + timeout {fail "(timeout) set follow child"} + } + send_gdb "tbreak 24\n" + gdb_expect { + -re "Breakpoint.*, line 24.*$gdb_prompt $"\ + {pass "set follow child, tbreak"} + -re "$gdb_prompt $" {fail "set follow child, tbreak"} + timeout {fail "(timeout) set follow child, tbreak"} + } + send_gdb "continue\n" + gdb_expect { + -re ".*Detaching from program:.*Attaching after fork to.* at .*24.*$gdb_prompt $"\ + {pass "set follow child, hit tbreak"} + -re "$gdb_prompt $" {fail "set follow child, hit tbreak"} + timeout {fail "(timeout) set follow child, hit tbreak"} + } + # The child has been detached; allow time for any output it might + # generate to arrive, so that output doesn't get confused with + # any expected debugger output from a subsequent testpoint. + # + exec sleep 1 + send_gdb "delete breakpoints\n" + gdb_expect { + -re "Delete all breakpoints.*$" { + send_gdb "y\n" + gdb_expect { + -re "$gdb_prompt $"\ + {pass "set follow child, cleanup"} + timeout {fail "(timeout) set follow child, cleanup"} + } + } + -re "$gdb_prompt $" {fail "set follow child, cleanup"} + timeout {fail "(timeout) set follow child, cleanup"} + } +} + +proc tcatch_fork_parent_follow {} { + global gdb_prompt + + send_gdb "catch fork\n" + gdb_expect { + -re "Catchpoint .*(fork).*$gdb_prompt $"\ + {pass "explicit parent follow, set tcatch fork"} + -re "$gdb_prompt $" {fail "explicit parent follow, set tcatch fork"} + timeout {fail "(timeout) explicit parent follow, set tcatch fork"} + } +# ??rehrauer: I don't yet know how to get the id of the tcatch +# via this script, so that I can add a -do list to it. For now, +# do the follow stuff after the catch happens. + + send_gdb "continue\n" + gdb_expect { + -re ".*in _fork_sys.*$gdb_prompt $"\ + {pass "explicit parent follow, tcatch fork"} + -re "$gdb_prompt $" {fail "explicit parent follow, tcatch fork"} + timeout {fail "(timeout) explicit parent follow, tcatch fork"} + } + send_gdb "set follow parent\n" + gdb_expect { + -re "$gdb_prompt $" {pass "set follow parent"} + timeout {fail "(timeout) set follow parent"} + } + send_gdb "tbreak 24\n" + gdb_expect { + -re "Breakpoint.*, line 24.*$gdb_prompt $"\ + {pass "set follow parent, tbreak"} + -re "$gdb_prompt $" {fail "set follow parent, tbreak"} + timeout {fail "(timeout) set follow child, tbreak"} + } + send_gdb "continue\n" + gdb_expect { + -re ".*Detaching after fork from.* at .*24.*$gdb_prompt $"\ + {pass "set follow parent, hit tbreak"} + -re "$gdb_prompt $" {fail "set follow parent, hit tbreak"} + timeout {fail "(timeout) set follow parent, hit tbreak"} + } + # The child has been detached; allow time for any output it might + # generate to arrive, so that output doesn't get confused with + # any expected debugger output from a subsequent testpoint. + # + exec sleep 1 + send_gdb "delete breakpoints\n" + gdb_expect { + -re "Delete all breakpoints.*$" { + send_gdb "y\n" + gdb_expect { + -re "$gdb_prompt $"\ + {pass "set follow parent, cleanup"} + timeout {fail "(timeout) set follow parent, cleanup"} + } + } + -re "$gdb_prompt $" {fail "set follow parent, cleanup"} + timeout {fail "(timeout) set follow parent, cleanup"} + } +} + +proc do_fork_tests {} { + global gdb_prompt + + # Verify that help is available for "set follow-fork-mode". + # + send_gdb "help set follow-fork-mode\n" + gdb_expect { + -re "Set debugger response to a program call of fork or vfork..* +A fork or vfork creates a new process. follow-fork-mode can be:.* +.*parent - the original process is debugged after a fork.* +.*child - the new process is debugged after a fork.* +.*ask - the debugger will ask for one of the above choices.* +For \"parent\" or \"child\", the unfollowed process will run free..* +By default, the debugger will follow the parent process..*$gdb_prompt $"\ + { pass "help set follow" } + -re "$gdb_prompt $" { fail "help set follow" } + timeout { fail "(timeout) help set follow" } + } + + # Verify that we can set follow-fork-mode, using an abbreviation + # for both the flag and its value. + # + send_gdb "set follow ch\n" + send_gdb "show fol\n" + gdb_expect { + -re "Debugger response to a program call of fork or vfork is \"child\".*$gdb_prompt $"\ + {pass "set follow, using abbreviations"} + timeout {fail "(timeout) set follow, using abbreviations"} + } + + # Verify that we cannot set follow-fork-mode to nonsense. + # + send_gdb "set follow chork\n" + gdb_expect { + -re "Undefined item: \"chork\".*$gdb_prompt $"\ + {pass "set follow to nonsense is prohibited"} + -re "$gdb_prompt $" {fail "set follow to nonsense is prohibited"} + timeout {fail "(timeout) set follow to nonsense is prohibited"} + } + send_gdb "set follow parent\n" + gdb_expect { + -re "$gdb_prompt $" {pass "set follow to nonsense is prohibited (reset parent)"} + timeout {fail "set follow to nonsense is prohibited (reset parent)"} + } + + # Test the default behaviour, which is to follow the parent of a + # fork, and detach from the child. Do this without catchpoints. + # + if [runto_main] then { default_fork_parent_follow } + + # Test the ability to explicitly follow the parent of a fork, and + # detach from the child. Do this without catchpoints. + # + if [runto_main] then { explicit_fork_parent_follow } + + # Test the ability to follow the child of a fork, and detach from + # the parent. Do this without catchpoints. + # + if [runto_main] then { explicit_fork_child_follow } + + # Test the ability to follow both child and parent of a fork. Do + # this without catchpoints. + # ??rehrauer: NYI. Will add testpoints here when implemented. + # + + # Test the ability to have the debugger ask the user at fork-time + # whether to follow the parent, child or both. Do this without + # catchpoints. + # ??rehrauer: NYI. Will add testpoints here when implemented. + # + + # Test the ability to catch a fork, specify that the child be + # followed, and continue. Make the catchpoint permanent. + # + if [runto_main] then { catch_fork_child_follow } + + # Test the ability to catch a fork, specify via a -do clause that + # the parent be followed, and continue. Make the catchpoint temporary. + # + if [runto_main] then { tcatch_fork_parent_follow } +} + +# Start with a fresh gdb + +gdb_exit +gdb_start +gdb_reinitialize_dir $srcdir/$subdir +gdb_load ${binfile} + + +# This is a test of gdb's ability to follow the parent, child or both +# parent and child of a Unix fork() system call. +# +do_fork_tests + +return 0 |