gdb/testsuite/gdb.arch/sparc-sysstep.exp

   1 # Copyright 2014-2024 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
  24 require {istarget "sparc*-*-linux*"}
  25
  26 set testfile sparc-sysstep
  27 set srcfile ${testfile}.c
  28 set binfile ${objdir}/${subdir}/${testfile}
  29 set opts {}
  30
  31 if {[prepare_for_testing "failed to prepare" ${binfile} $srcfile {additional_flags=-g}]} {
  32     return -1
  33 }
  34
  35 if ![runto_main] {
  36     return -1
  37 }
  38
  39 # Watching the global variable will guarantee that gdb will
  40 # single-step through the whole program.
  41
  42 set lno [gdb_get_line_number "sparc-sysstep.exp: last" $srcfile]
  43
  44 gdb_test "break $srcfile:$lno" "Breakpoint \[0-9\] at .*"
  45 gdb_test_no_output "set can-use-hw-watchpoints 0" ""
  46 gdb_test "watch global" "Watchpoint .*: global"
  47 gdb_test "continue" "Continuing.*${srcfile}:${lno}.*"