| # Copyright 2005, 2006 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. |
| |
| if $tracelevel then { |
| strace $tracelevel |
| } |
| |
| if { ![isnative] } then { |
| continue |
| } |
| |
| # Until "set follow-fork-mode" and "catch fork" are implemented on |
| # other targets... |
| # |
| if {![istarget "hppa*-hp-hpux*"] && ![istarget "*-*-linux*"]} then { |
| continue |
| } |
| |
| set prms_id 0 |
| set bug_id 0 |
| |
| set testfile "multi-forks" |
| set srcfile ${testfile}.c |
| set binfile ${objdir}/${subdir}/${testfile} |
| |
| if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { |
| untested multi-forks.exp |
| return -1 |
| } |
| |
| # Start with a fresh gdb |
| |
| gdb_exit |
| gdb_start |
| gdb_reinitialize_dir $srcdir/$subdir |
| gdb_load ${binfile} |
| |
| global gdb_prompt |
| |
| # This is a test of gdb's ability to follow the parent, child or both |
| # parent and child of multiple Unix fork() system calls. |
| # |
| |
| # Inferior program calls fork 4 times. Since each fork |
| # calls fork 4 times, there will be 16 forks. Each fork |
| # saves the return values of its own 4 fork calls. |
| |
| # First set gdb to follow the child. |
| # The result should be that each of the 4 forks returns zero. |
| |
| runto_main |
| set exit_bp_loc [gdb_get_line_number "Set exit breakpoint here."] |
| gdb_test "break $exit_bp_loc" "Breakpoint.* at .*" "Break at exit" |
| gdb_test "set follow child" "" "" |
| |
| send_gdb "continue\n" |
| gdb_expect { |
| -re ".*Break.* main .*$gdb_prompt.*$" {} |
| -re ".*$gdb_prompt $" {fail "run to exit 1"} |
| default {fail "run to exit 1 (timeout)"} |
| } |
| |
| gdb_test "print pids" "\\$.* = \\{0, 0, 0, 0\\}.*" "follow child, print pids" |
| |
| # Now set gdb to follow the parent. |
| # Result should be that none of the 4 forks returns zero. |
| |
| delete_breakpoints |
| runto_main |
| gdb_test "break $exit_bp_loc" "Breakpoint.* at .*" "Break at exit" |
| gdb_test "set follow parent" "" "" |
| |
| send_gdb "continue\n" |
| gdb_expect { |
| -re ".*Break.* main .*$gdb_prompt.*$" {} |
| -re ".*$gdb_prompt $" {fail "run to exit 2"} |
| default {fail "run to exit 2 (timeout)"} |
| } |
| |
| gdb_test "print pids\[0\]==0 || pids\[1\]==0 || pids\[2\]==0 || pids\[3\]==0" \ |
| " = 0" "follow parent, print pids" |
| |
| # |
| # Now test with detach-on-fork off. |
| # |
| |
| runto_main |
| gdb_test "break $exit_bp_loc" "Breakpoint.* at .*" "" |
| |
| gdb_test "help set detach-on-fork" "whether gdb will detach the child.*" \ |
| "help set detach" |
| |
| gdb_test "show detach-on-fork" "on." "show detach default on" |
| |
| gdb_test "set detach off" "" "set detach off" |
| |
| # |
| # We will now run every fork up to the exit bp, |
| # eventually winding up with 16 forks. |
| # |
| |
| for {set i 1} {$i <= 15} {incr i} { |
| gdb_test "continue" "Breakpoint .* main .*exit.*" "Run to exit $i" |
| gdb_test "info fork" " 4 .* 3 .* 2 .* 1 .*" "info fork $i" |
| gdb_test "restart $i" "(_dl_sysinfo_int80|fork).*" "restart $i" |
| } |
| |
| gdb_test "continue" "Breakpoint .* main .*exit.*" "Run to exit 16" |
| gdb_test "info fork" " 4 .* 3 .* 2 .* 1 .*" "info fork 16" |
| gdb_test "restart 0" " main .*" "restart final" |
| |
| # |
| # Now we should examine all the pids. |
| # |
| |
| # |
| # Test detach-fork |
| # |
| |
| # [assumes we're at #0] |
| gdb_test "detach-fork 1" "Detached .*" "Detach 1" |
| gdb_test "detach-fork 2" "Detached .*" "Detach 2" |
| gdb_test "detach-fork 3" "Detached .*" "Detach 3" |
| gdb_test "detach-fork 4" "Detached .*" "Detach 4" |
| |
| # |
| # Test delete fork |
| # |
| |
| gdb_test "delete fork 5" "" "Delete 5" |
| gdb_test "info fork 5" "No fork number 5." "Did delete 5" |
| gdb_test "delete fork 6" "" "Delete 6" |
| gdb_test "info fork 6" "No fork number 6." "Did delete 6" |
| gdb_test "delete fork 7" "" "Delete 7" |
| gdb_test "info fork 7" "No fork number 7." "Did delete 7" |
| gdb_test "delete fork 8" "" "Delete 8" |
| gdb_test "info fork 8" "No fork number 8." "Did delete 8" |
| gdb_test "delete fork 9" "" "Delete 9" |
| gdb_test "info fork 9" "No fork number 9." "Did delete 9" |
| gdb_test "delete fork 10" "" "Delete 10" |
| gdb_test "info fork 10" "No fork number 10." "Did delete 10" |
| gdb_test "delete fork 11" "" "Delete 11" |
| gdb_test "info fork 11" "No fork number 11." "Did delete 11" |
| gdb_test "delete fork 12" "" "Delete 12" |
| gdb_test "info fork 12" "No fork number 12." "Did delete 12" |
| gdb_test "delete fork 13" "" "Delete 13" |
| gdb_test "info fork 13" "No fork number 13." "Did delete 13" |
| gdb_test "delete fork 14" "" "Delete 14" |
| gdb_test "info fork 14" "No fork number 14." "Did delete 14" |
| gdb_test "delete fork 15" "" "Delete 15" |
| gdb_test "info fork 15" "No fork number 15." "Did delete 15" |
| |
| return 0 |
| |