| # Copyright 2014-2021 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 system call instructions (ta 0x6d) in the two |
| # cases distinguished by the implementation: sigreturn and all others. |
| # The sigreturn syscall requires a special analysis since the return |
| # PC must be extracted from the sigreturn register save area in the |
| # stack. |
| |
| if ![istarget "sparc*-*-linux*"] then { |
| return 0 |
| } |
| |
| set testfile sparc-sysstep |
| set srcfile ${testfile}.c |
| set binfile ${objdir}/${subdir}/${testfile} |
| set opts {} |
| |
| if {[prepare_for_testing "failed to prepare" ${binfile} $srcfile {additional_flags=-g}]} { |
| return -1 |
| } |
| |
| if ![runto_main] { |
| return -1 |
| } |
| |
| # Watching the global variable will guarantee that gdb will |
| # single-step through the whole program. |
| |
| set lno [gdb_get_line_number "sparc-sysstep.exp: last" $srcfile] |
| |
| gdb_test "break $srcfile:$lno" "Breakpoint \[0-9\] at .*" |
| gdb_test_no_output "set can-use-hw-watchpoints 0" "" |
| gdb_test "watch global" "Watchpoint .*: global" |
| gdb_test "continue" "Continuing.*${srcfile}:${lno}.*" |