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# This file is part of the gdb testsuite. 17 18# Test single-stepping system call instructions (ta 0x6d) in the two 19# cases distinguished by the implementation: sigreturn and all others. 20# The sigreturn syscall requires a special analysis since the return 21# PC must be extracted from the sigreturn register save area in the 22# stack. 23 24if {![istarget "sparc*-*-linux*"]} { 25 return 0 26} 27 28set testfile sparc-sysstep 29set srcfile ${testfile}.c 30set binfile ${objdir}/${subdir}/${testfile} 31set opts {} 32 33if {[prepare_for_testing "failed to prepare" ${binfile} $srcfile {additional_flags=-g}]} { 34 return -1 35} 36 37if ![runto_main] { 38 return -1 39} 40 41# Watching the global variable will guarantee that gdb will 42# single-step through the whole program. 43 44set lno [gdb_get_line_number "sparc-sysstep.exp: last" $srcfile] 45 46gdb_test "break $srcfile:$lno" "Breakpoint \[0-9\] at .*" 47gdb_test_no_output "set can-use-hw-watchpoints 0" "" 48gdb_test "watch global" "Watchpoint .*: global" 49gdb_test "continue" "Continuing.*${srcfile}:${lno}.*" 50