-# Copyright 2005, 2006 Free Software Foundation, Inc.
+# Copyright 2005-2013 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
+# 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, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
-if $tracelevel then {
- strace $tracelevel
- }
-
-if { ![isnative] } then {
+if { [is_remote target] || ![isnative] } then {
continue
}
continue
}
-set prms_id 0
-set bug_id 0
-set testfile "multi-forks"
-set srcfile ${testfile}.c
-set binfile ${objdir}/${subdir}/${testfile}
+standard_testfile .c
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
- gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
+ untested multi-forks.exp
+ return -1
}
# Start with a fresh gdb
-gdb_exit
-gdb_start
-gdb_reinitialize_dir $srcdir/$subdir
-gdb_load ${binfile}
+clean_restart ${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.
+set exit_bp_loc [gdb_get_line_number "Set exit breakpoint here."]
+
+# Insert a breakpoint at the location provided by the exit_bp_loc global
+# and resume the execution until hitting that breakpoint. We also make
+# sure to consume all the expected output from all processes as well,
+# to make sure it doesn't cause trouble during a subsequent test.
+
+proc continue_to_exit_bp_loc {} {
+ global exit_bp_loc decimal gdb_prompt
+
+ gdb_breakpoint $exit_bp_loc
+
+ send_gdb "continue\n"
+
+ # The output from the child processes can be interleaved arbitrarily
+ # with the output from GDB and the parent process. If we don't
+ # consume it all now, it can confuse later interactions.
+ set seen_done 0
+ set seen_break 0
+ set seen_prompt 0
+ set seen_timeout 0
+ while { ($seen_done < 16 || ! $seen_prompt) && ! $seen_timeout } {
+ # We don't know what order the interesting things will arrive in.
+ # Using a pattern of the form 'x|y|z' instead of -re x ... -re y
+ # ... -re z ensures that expect always chooses the match that
+ # occurs leftmost in the input, and not the pattern appearing
+ # first in the script that occurs anywhere in the input, so that
+ # we don't skip anything.
+ gdb_expect {
+ -re "($decimal done)|(Breakpoint)|($gdb_prompt)" {
+ if {[info exists expect_out(1,string)]} {
+ incr seen_done
+ } elseif {[info exists expect_out(2,string)]} {
+ set seen_break 1
+ } elseif {[info exists expect_out(3,string)]} {
+ set seen_prompt 1
+ }
+ array unset expect_out
+ }
+ timeout { set seen_timeout 1 }
+ }
+ }
+
+ if { $seen_timeout } {
+ fail "run to exit 2 (timeout)"
+ } elseif { ! $seen_prompt } {
+ fail "run to exit 2 (no prompt)"
+ } elseif { ! $seen_break } {
+ fail "run to exit 2 (no breakpoint hit)"
+ } elseif { $seen_done != 16 } {
+ fail "run to exit 2 (missing done messages)"
+ } else {
+ pass "run to exit 2"
+ }
+}
+
+# The inferior program builds a tree of processes by executing a loop
+# four times, calling fork at each iteration. Thus, at each
+# iteration, the total number of processes doubles; after four
+# iterations, we have 16 processes. Each process saves the results
+# from its 'fork' calls, so we can tell which leaf a given process is
+# by looking at which forks returned zero and which returned a pid: a
+# zero means to take the child's branch; a pid means to take the
+# parent's branch.
# 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 $" {fail "run to exit 1"}
- default {fail "run to exit 1 (timeout)"}
-}
+gdb_test_no_output "set follow-fork child"
+continue_to_exit_bp_loc
gdb_test "print pids" "\\$.* = \\{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_no_output "set follow-fork parent" ""
+continue_to_exit_bp_loc
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.
#
+# detach-on-fork isn't implemented on hpux.
+#
+if {![istarget "*-*-linux*"]} then {
+ continue
+}
+
+# Start with a fresh gdb
+
+clean_restart ${binfile}
+
runto_main
-gdb_test "break $exit_bp_loc" "Breakpoint.* at .*" ""
+gdb_breakpoint $exit_bp_loc
gdb_test "help set detach-on-fork" "whether gdb will detach the child.*" \
"help set detach"
gdb_test "show detach-on-fork" "on." "show detach default on"
-gdb_test "set detach off" "" "set detach off"
+gdb_test_no_output "set detach off" "set detach off"
#
# We will now run every fork up to the exit bp,
-# eventually winding up with 16 forks.
+# eventually winding up with 16 inferiors.
#
for {set i 1} {$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 "info inferior" " 5 .* 4 .* 3 .* 2 .*" "info inferior $i"
+ gdb_test "inferior $i + 1" "(_dl_sysinfo_int80|fork|__kernel_(v|)syscall).*" \
+ "inferior $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"
+gdb_test "info inferiors" " 5 .* 4 .* 3 .* 2 .*" "info inferior 16"
+gdb_test "inferior 2" " main .*" "restart final"
#
# Now we should examine all the pids.
#
#
-# Test detach-fork
+# Test detach inferior
#
-# [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"
+# [assumes we're at #1]
+gdb_test "detach inferior 2" "Detaching .*" "Detach 2"
+gdb_test "detach inferior 3" "Detaching .*" "Detach 3"
+gdb_test "detach inferior 4" "Detaching .*" "Detach 4"
+gdb_test "detach inferior 5" "Detaching .*" "Detach 5"
#
-# Test delete-fork
-#
-
-gdb_test "delete-fork 5" "" "Delete 5"
-gdb_test "delete-fork 6" "" "Delete 6"
-gdb_test "delete-fork 7" "" "Delete 7"
-gdb_test "delete-fork 8" "" "Delete 8"
-gdb_test "delete-fork 9" "" "Delete 9"
-gdb_test "delete-fork 10" "" "Delete 10"
-gdb_test "delete-fork 11" "" "Delete 11"
-gdb_test "delete-fork 12" "" "Delete 12"
-gdb_test "delete-fork 13" "" "Delete 13"
-gdb_test "delete-fork 14" "" "Delete 14"
-gdb_test "delete-fork 15" "" "Delete 15"
-
+# Test kill inferior
+#
+gdb_test_no_output "kill inferior 6" "Kill 6"
+gdb_test "info inferior 6" "<null>.*" "Did kill 6"
+gdb_test_no_output "kill inferior 7" "Kill 7"
+gdb_test "info inferior 7" "<null>.*" "Did kill 7"
+gdb_test_no_output "kill inferior 8" "Kill 8"
+gdb_test "info inferior 8" "<null>.*" "Did kill 8"
+gdb_test_no_output "kill inferior 9" "Kill 9"
+gdb_test "info inferior 9" "<null>.*" "Did kill 9"
+gdb_test_no_output "kill inferior 10" "Kill 10"
+gdb_test "info inferior 10" "<null>.*" "Did kill 10"
+gdb_test_no_output "kill inferior 11" "Kill 11"
+gdb_test "info inferior 11" "<null>.*" "Did kill 11"
+gdb_test_no_output "kill inferior 12" "Kill 12"
+gdb_test "info inferior 12" "<null>.*" "Did kill 12"
+gdb_test_no_output "kill inferior 13" "Kill 13"
+gdb_test "info inferior 13" "<null>.*" "Did kill 13"
+gdb_test_no_output "kill inferior 14" "Kill 14"
+gdb_test "info inferior 14" "<null>.*" "Did kill 14"
+gdb_test_no_output "kill inferior 15" "Kill 15"
+gdb_test "info inferior 15" "<null>.*" "Did kill 15"
+gdb_test_no_output "kill inferior 16" "Kill 16"
+gdb_test "info inferior 16" "<null>.*" "Did kill 16"
return 0
-
projects / deliverable / binutils-gdb.git / blobdiff