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step-over-lands-on-breakpoint.exp revision 1.1.1.4 
      1 # Copyright (C) 2014-2017 Free Software Foundation, Inc.
      2 
      3 # This program is free software; you can redistribute it and/or modify
      4 # it under the terms of the GNU General Public License as published by
      5 # the Free Software Foundation; either version 3 of the License, or
      6 # (at your option) any later version.
      7 #
      8 # This program is distributed in the hope that it will be useful,
      9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
     10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     11 # GNU General Public License for more details.
     12 #
     13 # You should have received a copy of the GNU General Public License
     14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
     15 
     16 # Test that when a step-over lands on a breakpoint, that breakpoint
     17 # hit is reported.
     18 
     19 standard_testfile
     20 set executable ${testfile}
     21 
     22 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" \
     23 	 executable [list debug "incdir=${objdir}"]] != "" } {
     24     return -1
     25 }
     26 
     27 # The test proper.  DISPLACED is true if we should try with displaced
     28 # stepping.  COMMAND is the execution command to test.
     29 proc do_test {displaced command} {
     30     global executable
     31 
     32     with_test_prefix "displaced=$displaced: $command" {
     33 	clean_restart $executable
     34 
     35 	if ![runto_main] {
     36 	    continue
     37 	}
     38 
     39 	gdb_test_no_output "set displaced-stepping $displaced"
     40 
     41 	gdb_breakpoint [gdb_get_line_number "set wait-thread breakpoint here"]
     42 	gdb_continue_to_breakpoint "run to wait-thread breakpoint"
     43 	gdb_test "info threads" "\\\* 1 .*  2 .*" "info threads shows all threads"
     44 
     45 	gdb_test_no_output "set scheduler-locking on"
     46 
     47 	delete_breakpoints
     48 
     49 	gdb_breakpoint [gdb_get_line_number "set breakpoint child here"]
     50 	gdb_test "thread 2" "Switching to .*"
     51 	gdb_continue_to_breakpoint "run to breakpoint in thread 2"
     52 	gdb_test "p counter = 0" " = 0" "unbreak loop in thread 2"
     53 
     54 	# Set a breakpoint exactly where the step-over will land.
     55 	gdb_breakpoint [gdb_get_line_number "breakpoint after step-over here"]
     56 
     57 	# Switch back to thread 1 and disable scheduler locking.
     58 	gdb_test "thread 1" "Switching to .*"
     59 	gdb_test_no_output "set scheduler-locking off"
     60 
     61 	# Thread 2 is still stopped at a breakpoint that needs to be
     62 	# stepped over.  However, right where the step-over lands
     63 	# there's another breakpoint installed, which should trap and
     64 	# be reported to the user.
     65 	gdb_test "$command" "step-over here.*"
     66     }
     67 }
     68 
     69 foreach displaced { "off" "on" } {
     70     if { $displaced != "off" && ![support_displaced_stepping] } {
     71 	continue
     72     }
     73 
     74     # Cover both stepping and non-stepping execution commands.
     75     foreach command { "step" "next" "continue" } {
     76 	do_test $displaced $command
     77     }
     78 }
     79