# This testcase is part of GDB, the GNU debugger.
-# Copyright 2004 Free Software Foundation, Inc.
+# Copyright 2004-2013 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,
# 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/>.
# Check that GDB can support multiple watchpoints across threads.
-if $tracelevel {
- strace $tracelevel
-}
-
-set prms_id 0
-set bug_id 0
# This test verifies that a watchpoint is detected in the proper thread
# so the test is only meaningful on a system with hardware watchpoints.
-if [target_info exists gdb,no_hardware_watchpoints] {
- return 0;
+if {[skip_hw_watchpoint_multi_tests]} {
+ return 0
+}
+
+proc target_no_stopped_data { } {
+ return [istarget s390*-*-*]
}
-set testfile "watchthreads"
-set srcfile ${testfile}.c
-set binfile ${objdir}/${subdir}/${testfile}
-if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}"]] != "" } {
+standard_testfile
+if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable debug] != "" } {
return -1
}
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}
-gdb_test "set can-use-hw-watchpoints 1" "" ""
+gdb_test_no_output "set can-use-hw-watchpoints 1" ""
#
# Run to `main' where we begin our tests.
# Watch values that will be modified by distinct threads.
gdb_test "watch args\[0\]" "Hardware watchpoint 2: args\\\[0\\\]"
gdb_test "watch args\[1\]" "Hardware watchpoint 3: args\\\[1\\\]"
+set hwwp_2_enabled 1
+set hwwp_3_enabled 1
-set init_line [expr [gdb_get_line_number "Init value"]+1]
+set init_line [gdb_get_line_number "Init value"]
set inc_line [gdb_get_line_number "Loop increment"]
+set main_loc "main \\\(\\\) at .*watchthreads.c:$init_line"
+set thread0_loc "thread_function \\\(arg=0x0\\\) at .*watchthreads.c:$inc_line"
+set thread1_loc "thread_function \\\(arg=0x1\\\) at .*watchthreads.c:$inc_line"
# Loop and continue to allow both watchpoints to be triggered.
for {set i 0} {$i < 30} {incr i} {
+ set test_flag_0 0
+ set test_flag_1 0
set test_flag 0
gdb_test_multiple "continue" "threaded watch loop" {
- -re "Hardware watchpoint 2: args\\\[0\\\].*Old value = 0.*New value = 1.*main \\\(\\\) at .*watchthreads.c:$init_line.*$gdb_prompt $"
- { set args_0 1; set test_flag 1 }
- -re "Hardware watchpoint 3: args\\\[1\\\].*Old value = 0.*New value = 1.*main \\\(\\\) at .*watchthreads.c:$init_line.*$gdb_prompt $"
- { set args_1 1; set test_flag 1 }
- -re "Hardware watchpoint 2: args\\\[0\\\].*Old value = $args_0.*New value = [expr $args_0+1].*in thread_function \\\(arg=0x0\\\) at .*watchthreads.c:$inc_line.*$gdb_prompt $"
- { set args_0 [expr $args_0+1]; set test_flag 1 }
- -re "Hardware watchpoint 3: args\\\[1\\\].*Old value = $args_1.*New value = [expr $args_1+1].*in thread_function \\\(arg=0x1\\\) at .*watchthreads.c:$inc_line.*$gdb_prompt $"
- { set args_1 [expr $args_1+1]; set test_flag 1 }
+ -re "(.*Hardware watchpoint.*)$gdb_prompt $" {
+ # At least one hardware watchpoint was hit. Check if both were.
+ set string $expect_out(1,string)
+
+ if [regexp "Hardware watchpoint 2: args\\\[0\\\]\[^\r\]*\r\[^\r\]*\r\[^\r\]*Old value = $args_0\[^\r\]*\r\[^\r\]*New value = [expr $args_0+1]\r" $string] {
+ incr args_0
+ incr test_flag_0
+ }
+ if [regexp "Hardware watchpoint 3: args\\\[1\\\]\[^\r\]*\r\[^\r\]*\r\[^\r\]*Old value = $args_1\[^\r\]*\r\[^\r\]*New value = [expr $args_1+1]\r" $string] {
+ incr args_1
+ incr test_flag_1
+ }
+
+ set expected_loc "bogus location"
+ if { $test_flag_0 == 1 && $test_flag_1 == 0 && $args_0 == 1 } {
+ set expected_loc $main_loc
+ } elseif { $test_flag_0 == 0 && $test_flag_1 == 1 && $args_1 == 1 } {
+ set expected_loc $main_loc
+ } elseif { $test_flag_0 == 1 && $test_flag_1 == 0 } {
+ set expected_loc $thread0_loc
+ } elseif { $test_flag_0 == 0 && $test_flag_1 == 1 } {
+ set expected_loc $thread1_loc
+ } elseif { $test_flag_0 + $test_flag_1 == 2 } {
+ # On S/390, or any other system which can not report the
+ # stopped data address, it is OK to report two watchpoints
+ # at once in this test. Make sure the reported location
+ # corresponds to at least one of the watchpoints (and not,
+ # e.g., __nptl_create_event). On other systems, we should
+ # report the two watchpoints serially.
+ if { [target_no_stopped_data] } {
+ set expected_loc "($main_loc|$thread0_loc|$thread1_loc)"
+ }
+ }
+
+ if [ regexp "$expected_loc" $string ] {
+ set test_flag 1
+ } else {
+ fail "threaded watch loop"
+ }
+
+ # If one of the watchpoints is disabled, we'd better not stop there.
+ if { !$hwwp_2_enabled && $test_flag_0 } {
+ fail "disabled hw watchpoint 2 triggered"
+ }
+ if { !$hwwp_3_enabled && $test_flag_1 } {
+ fail "disabled hw watchpoint 3 triggered"
+ }
+
+ # If we get to 10 in one of the watched locations disable it so we
+ # see some of the other watched location.
+ # 10 is chosen so we're guaranteed to come through here.
+ if { $hwwp_2_enabled && $hwwp_3_enabled } {
+ if { $args_0 >= 10 && $hwwp_2_enabled } {
+ gdb_test_no_output "disable 2" "disable first watchpoint at 10"
+ set hwwp_2_enabled 0
+ } elseif { $args_1 >= 10 && $hwwp_3_enabled } {
+ gdb_test_no_output "disable 3" "disable first watchpoint at 10"
+ set hwwp_3_enabled 0
+ }
+ }
+ }
}
+
# If we fail above, don't bother continuing loop
if { $test_flag == 0 } {
set i 30;
# Verify that all watchpoint hits are accounted for.
set message "combination of threaded watchpoints = 30"
-if { [expr $args_0+$args_1] == 30 } {
+if { [target_no_stopped_data] } {
+ # See above. If we allow two watchpoints to be hit at once, we
+ # may have more than 30 hits total.
+ set result [expr $args_0 + $args_1 >= 30]
+} else {
+ set result [expr $args_0 + $args_1 == 30]
+}
+if { $result } {
pass $message
} else {
fail $message
projects / thirdparty / binutils-gdb.git / blobdiff