gdb/testsuite/gdb.arch/i386-mpx-map.exp

   1 # Copyright 2015-2020 Free Software Foundation, Inc.
   2 #
   3 # Contributed by Intel Corp. <walfred.tedeschi@intel.com>,
   4 #                            <mircea.gherzan@intel.com>
   5 #
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 if { ![istarget i?86-*-*] && ![istarget x86_64-*-* ] } {
  20     verbose "Skipping x86 MPX tests."
  21     return
  22 }
  23
  24 standard_testfile
  25
  26 if { ![supports_mpx_check_pointer_bounds] } {
  27     return -1
  28 }
  29
  30 set comp_flags "-mmpx -fcheck-pointer-bounds -I${srcdir}/../nat/"
  31
  32 if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} \
  33  [list debug nowarnings additional_flags=${comp_flags}]] } {
  34     return -1
  35 }
  36
  37 if ![runto_main] {
  38         untested "could not run to main"
  39         return -1
  40 }
  41
  42 set supports_mpx 0
  43 set test "probe MPX support"
  44
  45 gdb_test_multiple "print have_mpx()" $test {
  46     -re ".. = 1\r\n$gdb_prompt $" {
  47         pass $test
  48         set supports_mpx 1
  49     }
  50     -re ".. = 0\r\n$gdb_prompt $" {
  51         pass $test
  52     }
  53 }
  54
  55 if { !$supports_mpx } {
  56     unsupported "processor does not support MPX"
  57     return
  58 }
  59
  60 gdb_breakpoint [ gdb_get_line_number "after-decl" ]
  61 gdb_breakpoint [ gdb_get_line_number "after-alloc" ]
  62 gdb_breakpoint [ gdb_get_line_number "after-assign" ]
  63
  64 gdb_test "show mpx bound 0x0" "Invalid bounds directory entry at $hex." "NULL address of the pointer"
  65
  66 gdb_continue_to_breakpoint "after-decl" ".*after-decl.*"
  67 gdb_test "show mpx bound a" "Invalid bounds directory entry at $hex." "pointer instead of pointer address"
  68
  69 gdb_continue_to_breakpoint "after-alloc" ".*after-alloc.*"
  70 gdb_test "show mpx bound a" "\\\{lbound = $hex, ubound = $hex\\\}: pointer value = $hex, size = \[8, 4\], metadata = 0x0+" "pointer after allocation"
  71
  72 gdb_continue_to_breakpoint "after-assign" ".*after-assign.*"
  73 gdb_test "show mpx bound x" "\\\{lbound = $hex, ubound = $hex\\\}: pointer value = $hex, size = \[8, 4\], metadata = 0x0+" "pointer after assignment"
  74 gdb_test "set mpx bound 0x0, 0x1, 0x2" "Invalid bounds directory entry at $hex." "set mpx bound: NULL address of the pointer"
  75 gdb_test_no_output "set mpx bound x, 0xcafebabe, 0xdeadbeef" "set mpx bound: set bounds for a valid pointer address"
  76 gdb_test "show mpx bound x" "\\\{lbound = .*cafebabe, ubound = .*deadbeef\\\}: pointer value = $hex, size = $decimal, metadata = 0x0+" "set mpx bound: bounds map entry after set mpx bound"
  77
  78
  79 gdb_test "set mpx bound 0x0, 0x1 0x2" "A syntax error in expression.*" "set mpx bound: Controlling syntax error, missing comma "
  80 gdb_test "set mpx bound 0x0, 0x1" "Wrong number of arguments.*" "set mpx bound: Controlling syntax error, missing argument "