1# Copyright 2014-2023 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 20standard_testfile 21set executable ${testfile} 22 23if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} { 24 return -1 25} 26 27if {![runto_main]} { 28 return 0 29} 30 31gdb_breakpoint [gdb_get_line_number "set foo break here"] 32gdb_continue_to_breakpoint "first breakpoint" ".* set foo break here .*" 33 34# Get the address of the next instruction and set a breakpoint there. 35set next_insn_addr "" 36set test "disassemble main" 37gdb_test_multiple $test $test { 38 -re ".*=> $hex <\\+$decimal>:\[^\r\n\]+\r\n ($hex) .*$gdb_prompt $" { 39 set next_insn_addr $expect_out(1,string) 40 pass $test 41 } 42} 43 44if { $next_insn_addr == "" } { 45 return -1 46} 47 48gdb_test "b *$next_insn_addr" "Breakpoint .*" "set breakpoint on address" 49 50# So that GDB doesn't try to remove the regular breakpoint when the 51# step finishes. 52gdb_test_no_output "set breakpoint always-inserted on" 53 54# On software single-step targets, this step will want to momentarily 55# place a single-step breakpoint over the bar breakpoint, and then 56# remove it. But, a regular breakpoint is planted there already, and 57# with always-inserted on, should remain planted when the step 58# finishes. 59gdb_test "si" "Breakpoint .*" 60 61# If the breakpoint is still correctly inserted, then this jump should 62# re-trigger it. Otherwise, GDB will lose control and the program 63# will exit. See PR breakpoints/17000. 64gdb_test "jump *\$pc" "Breakpoint .*" 65