| # Copyright 1997, 1999, 2007, 2008 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 3 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, see <http://www.gnu.org/licenses/>. |
| |
| if { [is_remote target] || ![isnative] } then { |
| continue |
| } |
| |
| set prms_id 0 |
| set bug_id 0 |
| |
| global srcfile |
| set testfile "foll-fork" |
| set srcfile ${testfile}.c |
| set binfile ${objdir}/${subdir}/${testfile} |
| |
| if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { |
| untested foll-fork.exp |
| return -1 |
| } |
| |
| |
| |
| # Until "set follow-fork-mode" and "catch fork" are implemented on |
| # other targets... |
| # |
| if {![istarget "hppa*-hp-hpux*"] && ![istarget "*-linux*"]} then { |
| continue |
| } |
| |
| proc check_fork_catchpoints {} { |
| global gdb_prompt |
| |
| # Verify that the system supports "catch fork". |
| gdb_test "catch fork" "Catchpoint \[0-9\]* \\(fork\\)" "insert first fork catchpoint" |
| set has_fork_catchpoints 0 |
| gdb_test_multiple "continue" "continue to first fork catchpoint" { |
| -re ".*Your system does not support fork catchpoints.*$gdb_prompt $" { |
| unsupported "continue to first fork catchpoint" |
| } |
| -re ".*Catchpoint.*$gdb_prompt $" { |
| set has_fork_catchpoints 1 |
| pass "continue to first fork catchpoint" |
| } |
| } |
| |
| if {$has_fork_catchpoints == 0} { |
| unsupported "fork catchpoints" |
| return -code return |
| } |
| } |
| |
| 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 $" {fail "explicit show child follow, no catchpoints"} |
| timeout {fail "(timeout) explicit show child follow, no catchpoints"} |
| } |
| send_gdb "next 2\n" |
| gdb_expect { |
| -re "Attaching after fork to.*$gdb_prompt $"\ |
| {pass "explicit child follow, no catchpoints"} |
| -re "$gdb_prompt $" {fail "explicit child follow, no catchpoints"} |
| timeout {fail "(timeout) explicit child follow, no catchpoints"} |
| } |
| # The child has been detached; allow time for any output it might |
| # generate to arrive, so that output doesn't get confused with |
| # any gdb_expected debugger output from a subsequent testpoint. |
| # |
| exec sleep 1 |
| } |
| |
| proc catch_fork_child_follow {} { |
| global gdb_prompt |
| global srcfile |
| |
| send_gdb "catch fork\n" |
| gdb_expect { |
| -re "Catchpoint .*(fork).*$gdb_prompt $"\ |
| {pass "explicit child follow, set catch fork"} |
| -re "$gdb_prompt $" {fail "explicit child follow, set catch fork"} |
| timeout {fail "(timeout) explicit child follow, set catch fork"} |
| } |
| |
| # Verify that the catchpoint is mentioned in an "info breakpoints", |
| # and further that the catchpoint mentions no process id. |
| # |
| set test_name "info shows catchpoint without pid" |
| gdb_test_multiple "info breakpoints" "$test_name" { |
| -re ".*catchpoint.*keep y.*fork\[\r\n\]+$gdb_prompt $" { |
| pass "$test_name" |
| } |
| } |
| |
| send_gdb "continue\n" |
| gdb_expect { |
| -re "Catchpoint.*(forked process.*),.*in .*(fork|__kernel_v?syscall).*$gdb_prompt $"\ |
| {pass "explicit child follow, catch fork"} |
| -re "$gdb_prompt $" {fail "explicit child follow, catch fork"} |
| timeout {fail "(timeout) explicit child follow, catch fork"} |
| } |
| |
| # Verify that the catchpoint is mentioned in an "info breakpoints", |
| # and further that the catchpoint managed to capture a process id. |
| # |
| set test_name "info shows catchpoint without pid" |
| gdb_test_multiple "info breakpoints" "$test_name" { |
| -re ".*catchpoint.*keep y.*fork, process.*$gdb_prompt $" { |
| pass "$test_name" |
| } |
| } |
| |
| send_gdb "set follow child\n" |
| gdb_expect { |
| -re "$gdb_prompt $" {pass "set follow child"} |
| timeout {fail "(timeout) set follow child"} |
| } |
| send_gdb "tbreak ${srcfile}:24\n" |
| gdb_expect { |
| -re "Temporary breakpoint.*, line 24.*$gdb_prompt $"\ |
| {pass "set follow child, tbreak"} |
| -re "$gdb_prompt $" {fail "set follow child, tbreak"} |
| timeout {fail "(timeout) set follow child, tbreak"} |
| } |
| send_gdb "continue\n" |
| gdb_expect { |
| -re "Attaching after fork to.* at .*24.*$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 $" {fail "set follow child, cleanup"} |
| timeout {fail "(timeout) set follow child, cleanup"} |
| } |
| } |
| |
| proc tcatch_fork_parent_follow {} { |
| global gdb_prompt |
| global srcfile |
| |
| send_gdb "catch fork\n" |
| gdb_expect { |
| -re "Catchpoint .*(fork).*$gdb_prompt $"\ |
| {pass "explicit parent follow, set tcatch fork"} |
| -re "$gdb_prompt $" {fail "explicit parent follow, set tcatch fork"} |
| timeout {fail "(timeout) explicit parent follow, set tcatch fork"} |
| } |
| # ??rehrauer: I don't yet know how to get the id of the tcatch |
| # via this script, so that I can add a -do list to it. For now, |
| # do the follow stuff after the catch happens. |
| |
| send_gdb "continue\n" |
| gdb_expect { |
| -re ".*in .*(fork|__kernel_v?syscall).*$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 ${srcfile}:24\n" |
| gdb_expect { |
| -re "Temporary breakpoint.*, line 24.*$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 $" {fail "set follow parent, cleanup"} |
| timeout {fail "(timeout) set follow parent, cleanup"} |
| } |
| } |
| |
| proc do_fork_tests {} { |
| global gdb_prompt |
| |
| # Verify that help is available for "set follow-fork-mode". |
| # |
| send_gdb "help set follow-fork-mode\n" |
| gdb_expect { |
| -re "Set debugger response to a program call of fork or vfork..* |
| A fork or vfork creates a new process. follow-fork-mode can be:.* |
| .*parent - the original process is debugged after a fork.* |
| .*child - the new process is debugged after a fork.* |
| The unfollowed process will continue to run..* |
| By default, the debugger will follow the parent process..*$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)"} |
| } |
| |
| # Check that fork catchpoints are supported, as an indicator for whether |
| # fork-following is supported. |
| if [runto_main] then { check_fork_catchpoints } |
| |
| # 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} |
| |
| # The "Detaching..." and "Attaching..." messages may be hidden by |
| # default. |
| gdb_test "set verbose" "" |
| |
| # 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 |
