gdb/testsuite/gdb.arch/powerpc-trap.exp

   1 # Copyright 2021-2024 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 if GDB stops at various trap instructions inserted into
  19 # the code.
  20
  21 if { [istarget powerpc-*] } {
  22    standard_testfile powerpc-trap.s
  23    # Number of expected SIGTRAPs to get.  This needs to be kept in sync
  24    # with the source file powerpc-trap.s.
  25    set expected_traps 3
  26 } elseif {[istarget powerpc64*] } {
  27    standard_testfile powerpc64-trap.s
  28    # Number of expected SIGTRAPs to get.  This needs to be kept in sync
  29    # with the source file powerpc64-trap.s.
  30    set expected_traps 5
  31 } else {
  32     unsupported "Skipping powerpc-specific tests"
  33     return
  34 }
  35
  36 if {[prepare_for_testing "failed to prepare" ${testfile} ${srcfile}]} {
  37     return -1
  38 }
  39
  40 if {![runto_main]} {
  41     untested "could not run to main"
  42     return -1
  43 }
  44
  45 set keep_going 1
  46 set count 0
  47
  48 while {$keep_going} {
  49     set keep_going 0
  50
  51     # Continue to next program breakpoint instruction.
  52     gdb_test_multiple "continue" "trap instruction $count causes SIGTRAP" {
  53         -re "Program received signal SIGTRAP, Trace/breakpoint trap.*$gdb_prompt $" {
  54             pass $gdb_test_name
  55
  56             # Advance PC to next instruction
  57             gdb_test "set \$pc = \$pc + 4" "" "advance past trap instruction $count"
  58
  59             incr count
  60             if {$count < $expected_traps} {
  61                 set keep_going 1
  62             }
  63         }
  64     }
  65 }
  66
  67 # Verify we stopped at the expected number of SIGTRAP's.
  68 gdb_assert {$count == $expected_traps} "all trap instructions triggered"
  69
  70 # One last continue to reach the end of the test, to make sure we don't get
  71 # another SIGTRAP.
  72 gdb_test "continue" "exited normally.*" "continue to end"