gdb/testsuite/gdb.base/sss-bp-on-user-bp.exp

   1 # Copyright 2014-2015 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 removing a single-step breakpoint that is placed at the
  17 # same address as another regular breakpoint leaves the regular
  18 # breakpoint inserted.
  19
  20 standard_testfile
  21 set executable ${testfile}
  22
  23 if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
  24     return -1
  25 }
  26
  27 if ![runto_main] then {
  28     fail "Can't run to main"
  29     return 0
  30 }
  31
  32 gdb_breakpoint [gdb_get_line_number "set foo break here"]
  33 gdb_continue_to_breakpoint "first breakpoint" ".* set foo break here .*"
  34
  35 # Get the address of the next instruction and set a breakpoint there.
  36 set next_insn_addr ""
  37 set test "disassemble main"
  38 gdb_test_multiple $test $test {
  39     -re ".*=> $hex <\\+$decimal>:\[^\r\n\]+\r\n   ($hex) .*$gdb_prompt $" {
  40         set next_insn_addr $expect_out(1,string)
  41         pass $test
  42     }
  43 }
  44
  45 if { $next_insn_addr == "" } {
  46     return -1
  47 }
  48
  49 gdb_test "b *$next_insn_addr" "Breakpoint .*"
  50
  51 # So that GDB doesn't try to remove the regular breakpoint when the
  52 # step finishes.
  53 gdb_test_no_output "set breakpoint always-inserted on"
  54
  55 # On software single-step targets, this step will want to momentarily
  56 # place a single-step breakpoint over the bar breakpoint, and then
  57 # remove it.  But, a regular breakpoint is planted there already, and
  58 # with always-inserted on, should remain planted when the step
  59 # finishes.
  60 gdb_test "si" "Breakpoint .*"
  61
  62 # If the breakpoint is still correctly inserted, then this jump should
  63 # re-trigger it.  Otherwise, GDB will lose control and the program
  64 # will exit.  See PR breakpoints/17000.
  65 gdb_test "jump *\$pc" "Breakpoint .*"