| # This testcase is part of GDB, the GNU debugger. |
| |
| # Copyright 2004 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. |
| |
| # 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; |
| } |
| |
| 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}"]] != "" } { |
| return -1 |
| } |
| |
| gdb_exit |
| gdb_start |
| gdb_reinitialize_dir $srcdir/$subdir |
| gdb_load ${binfile} |
| |
| gdb_test "set can-use-hw-watchpoints 1" "" "" |
| |
| # |
| # Run to `main' where we begin our tests. |
| # |
| |
| if ![runto_main] then { |
| gdb_suppress_tests |
| } |
| |
| set args_0 0 |
| set args_1 0 |
| |
| # 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 init_line [expr [gdb_get_line_number "Init value"]+1] |
| set inc_line [gdb_get_line_number "Loop increment"] |
| |
| # Loop and continue to allow both watchpoints to be triggered. |
| for {set i 0} {$i < 30} {incr i} { |
| 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 } |
| } |
| # If we fail above, don't bother continuing loop |
| if { $test_flag == 0 } { |
| set i 30; |
| } |
| } |
| |
| # Print success message if loop succeeded. |
| if { $test_flag == 1 } { |
| pass "threaded watch loop" |
| } |
| |
| # Verify that we hit first watchpoint in main thread. |
| set message "first watchpoint on args\[0\] hit" |
| if { $args_0 > 0 } { |
| pass $message |
| } else { |
| fail $message |
| } |
| |
| # Verify that we hit second watchpoint in main thread. |
| set message "first watchpoint on args\[1\] hit" |
| if { $args_1 > 0 } { |
| pass $message |
| } else { |
| fail $message |
| } |
| |
| # Verify that we hit first watchpoint in child thread. |
| set message "watchpoint on args\[0\] hit in thread" |
| if { $args_0 > 1 } { |
| pass $message |
| } else { |
| fail $message |
| } |
| |
| # Verify that we hit second watchpoint in child thread. |
| set message "watchpoint on args\[1\] hit in thread" |
| if { $args_1 > 1 } { |
| pass $message |
| } else { |
| fail $message |
| } |
| |
| # Verify that all watchpoint hits are accounted for. |
| set message "combination of threaded watchpoints = 30" |
| if { [expr $args_0+$args_1] == 30 } { |
| pass $message |
| } else { |
| fail $message |
| } |