# Copyright 2008-2021 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/>.
#
# This file is part of the gdb testsuite.

# Test single stepping through atomic sequences beginning with
# a ldxr instruction and ending with a stxr instruction.

if {![is_aarch64_target]} {
    verbose "Skipping ${gdb_test_file_name}."
    return
}

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

if ![runto_main] {
    return -1
}

gdb_breakpoint "[gdb_get_line_number "ldxr"]" \
  "Breakpoint $decimal at $hex" \
  "Set the breakpoint at the start of the sequence"

gdb_test "continue" "Continuing.*Breakpoint $decimal.*" \
  "Continue until breakpoint"

gdb_test "next" ".*__asm __volatile.*" \
  "Step through the ldxr/stxr sequence"

gdb_test "next" ".*return dword.*" \
  "Stepped through sequence through conditional branch"