gdb/testsuite/gdb.base/kill-after-signal.exp

# Copyright (C) 2011-2024 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

standard_testfile .c

require can_single_step_to_signal_handler

require {!target_info exists gdb,nosignals}

if [prepare_for_testing "failed to prepare" ${testfile}] {
    return -1
}

gdb_test "handle SIGUSR1 stop print pass" "SIGUSR1\[ \t\]+Yes\[ \t\]+Yes\[ \t\]+Yes\[ \t\]+.*"

if ![runto_main] {
    return -1
}

gdb_test "continue" "Program received signal SIGUSR1, .*"

set test "handler"
gdb_test_multiple "stepi" $test {
    -re -wrap "\r\nhandler .*" {
	pass $test
    }
    -re "signal handler called.*$gdb_prompt $" {
	# After PowerPC Linux kernel commit:
	#
	#   commit: 0138ba5783ae0dcc799ad401a1e8ac8333790df9
	#   powerpc/64/signal: Balance return predictor
	#   stack in signal trampoline.
	#
	# The kernel places an additional brctl instruction
	# in the vdso to call the user handler.
	#
	# And then this commit:
	#
	#   commit 24321ac668e452a4942598533d267805f291fdc9
	#   powerpc/64/signal: Fix regression in
	#   __kernel_sigtramp_rt64() semantics
	#
	# updates the semantics of __kernel_sigtramp_rt64().
	# It added a new symbol to serve as a jump target from
	# the kernel to the trampoline.
	#
	# The net result of these changes is that gdb stops
	# at  __kernel_start_sigtramp_rt64.  Need to do one
	# more stepi to reach the expected location in the user
	# signal handler.
	gdb_test "p \$pc" ".*__kernel_start_sigtramp_rt64.*" "in kernel code"
	gdb_test "stepi" "\r\nhandler .*" $test
    }
}

gdb_test_multiple "kill" "kill" {
    -re "Kill the program being debugged\\? \\(y or n\\) $" {
       gdb_test "y" "\\\[Inferior $decimal \\(.*\\) killed\\\]" "kill"
    }
}