1# Copyright (C) 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 an explicit "signal FOO" delivers FOO even if "handle" for 17# that same signal is set to "nopass". Also make sure the signal is 18# delivered to the right thread, even if GDB has to step over a 19# breakpoint in some other thread first. 20 21standard_testfile 22 23if [target_info exists gdb,nosignals] { 24 verbose "Skipping ${testfile}.exp because of nosignals." 25 return -1 26} 27 28if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" \ 29 executable { debug }] != "" } { 30 return -1 31} 32 33# Run the test proper. STEP_OVER indicates whether we leave in place 34# a breakpoint that needs to be stepped over when we explicitly 35# request a signal be delivered with the "signal" command. 36 37proc test { step_over } { 38 global srcfile binfile 39 40 with_test_prefix "step-over $step_over" { 41 clean_restart ${binfile} 42 43 if {![runto_main]} { 44 return 0 45 } 46 47 gdb_test "handle SIGUSR1 stop print nopass" 48 49 gdb_test "b thread_function" "Breakpoint .* at .*$srcfile.*" 50 gdb_test "continue" "thread_function.*" "stopped in thread" 51 52 # Thread 2 is stopped at a breakpoint. If we leave the 53 # breakpoint in place, GDB needs to move thread 2 past the 54 # breakpoint before delivering the signal to thread 1. We 55 # want to be sure that GDB doesn't mistakenly deliver the 56 # signal to thread 1 while doing that. 57 if { $step_over == "no" } { 58 delete_breakpoints 59 } 60 61 gdb_test "break handler" "Breakpoint .* at .*$srcfile.*" 62 63 gdb_test "thread 1" "Switching to thread 1.*" 64 65 set pattern "\\\* 1\[ \t\]+Thread.*" 66 67 gdb_test "info threads" $pattern "thread 1 selected" 68 69 gdb_test "signal SIGUSR1" "handler .*" 70 71 # Make sure it was thread 1 that got the signal. Note we list 72 # all threads instead of just thread 1, so that if something 73 # goes wrong and another thread ends up selected, we can 74 # easily see which in the logs. 75 gdb_test "info threads" $pattern "thread 1 got the signal" 76 } 77} 78 79foreach stepover {"yes" "no"} { 80 test $stepover 81} 82