1# Copyright 2020 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 inserting a hardware and a software breakpoint at the same 17# address behaves as expected. GDB used to consider hw and sw 18# breakpoint locations as duplicate locations, which would lead to bad 19# behavior. See PR gdb/25741. 20 21if {[skip_hw_breakpoint_tests]} { 22 return 0 23} 24 25set test hbreak 26set srcfile ${test}.c 27if { [prepare_for_testing "failed to prepare" ${test} ${srcfile}] } { 28 return -1 29} 30 31if ![runto_main] { 32 fail "can't run to main" 33 return -1 34} 35 36delete_breakpoints 37 38gdb_test_no_output "set breakpoint always-inserted on" 39gdb_test_no_output "set breakpoint condition-evaluation host" 40gdb_test_no_output "set confirm off" 41 42# Test inserting a hw breakpoint first, then a sw breakpoint at the 43# same address. 44with_test_prefix "hw-sw" { 45 gdb_test "hbreak main" \ 46 "Hardware assisted breakpoint .* at .*" \ 47 "hbreak" 48 49 gdb_test "break main" \ 50 "Note: breakpoint .* also set at .*\r\nBreakpoint .* at .*" \ 51 "break" 52 53 # A bad GDB debugging against GDBserver would output a warning 54 # here: 55 # delete breakpoints 56 # warning: Error removing breakpoint 3 57 # (gdb) FAIL: gdb.base/hw-sw-break-same-address.exp: hw-sw: delete breakpoints 58 gdb_test_no_output "delete breakpoints" 59} 60 61# Now the opposite: test inserting a sw breakpoint first, then a hw 62# breakpoint at the same address. 63with_test_prefix "sw-hw" { 64 gdb_test "break main" \ 65 "Breakpoint .* at .*" \ 66 "break" 67 68 gdb_test "hbreak main" \ 69 "Note: breakpoint .* also set at .*\r\nHardware assisted breakpoint .* at .*" \ 70 "hbreak" 71 72 gdb_test_no_output "delete breakpoints" 73} 74