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

   1 # Copyright 2013-2020 Free Software Foundation, Inc.
   2 #
   3 # Contributed by Intel Corp. <walfred.tedeschi@intel.com>
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 if { ![istarget i?86-*-*] && ![istarget x86_64-*-* ] } {
  19     verbose "Skipping x86 MPX tests."
  20     return
  21 }
  22
  23 standard_testfile
  24
  25 if { ![istarget i?86-*-*] && ![istarget x86_64-*-* ] } {
  26     verbose "Skipping x86 MPX tests."
  27     return
  28 }
  29
  30 if { ![supports_mpx_check_pointer_bounds] } {
  31     return -1
  32 }
  33
  34 set comp_flags "-mmpx -fcheck-pointer-bounds -I${srcdir}/../nat/"
  35
  36 if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} \
  37      [list debug nowarnings additional_flags=${comp_flags}]] } {
  38     return -1
  39 }
  40
  41 if ![runto_main] {
  42     untested "could not run to main"
  43     return -1
  44 }
  45
  46 set supports_mpx 0
  47 set test "probe MPX support"
  48 gdb_test_multiple "print have_mpx()" $test {
  49     -re ".. = 1\r\n$gdb_prompt $" {
  50         pass $test
  51         set supports_mpx 1
  52     }
  53     -re ".. = 0\r\n$gdb_prompt $" {
  54         pass $test
  55     }
  56 }
  57
  58 if { !$supports_mpx } {
  59     unsupported "processor does not support MPX"
  60     return
  61 }
  62
  63 # Test bndcfg register and bndstatus at startup
  64 set test_string "\\\{raw = 0x\[0-9a-f\]+, config = \\\{base = \[0-9\]+,\
  65 reserved = \[0-9\]+, preserved = \[0-9\]+, enabled = \[0-9\]+\\\}\\\}"
  66
  67 gdb_test "print \$bndcfgu" $test_string "bndcfgu formating"
  68 gdb_test "print \$bndcfgu.config.enabled" "= 1" "test if bndstatus is enabled"
  69 gdb_test "print \$bndstatus" "\\\{raw = 0x0, status = \\\{bde = 0, error = 0\\\}\\\}" \
  70                 "bndstatus formating"
  71 gdb_test "print \$bndstatus.raw" "= \\\(void \\\*\\\) 0x0" "bndstatus is zero by startup"
  72
  73 # Read values from pseudo registers.
  74 gdb_breakpoint [ gdb_get_line_number "break here" ]
  75 gdb_continue_to_breakpoint "break here" ".*break here.*"
  76
  77 set test_string ".*\\\{lbound = 0xa, ubound = 0x13\\\}.*"
  78 gdb_test "info register bnd0" ".*bnd0$test_string" "pure bnd0 register"
  79
  80 set test_string ".*\\\{lbound = 0x14, ubound = 0x1d\\\}.*"
  81 gdb_test "info register bnd1" ".*bnd1$test_string" "pure bnd1 register"
  82
  83 set test_string ".*\\\{lbound = 0x1e, ubound = 0x27\\\}.*"
  84 gdb_test "info register bnd2" ".*bnd2$test_string" "pure bnd2 register"
  85
  86 set test_string ".*\\\{lbound = 0x28, ubound = 0x31\\\}.*"
  87 gdb_test "info register bnd3" ".*bnd3$test_string" "pure bnd3 register"
  88
  89 # Read value from registers bndrs.
  90
  91 set test_string ".*\\\{lbound = 0xa, ubound_raw = 0x\[f\]+ec\\\}.*"
  92 gdb_test "info register bnd0raw" ".*bnd0$test_string" "pure bnd0r register"
  93
  94 set test_string ".*\\\{lbound = 0x14, ubound_raw = 0x\[f\]+e2\\\}.*"
  95 gdb_test "info register bnd1raw" ".*bnd1$test_string" "pure bnd1r register"
  96
  97 set test_string ".*\\\{lbound = 0x1e, ubound_raw = 0x\[f\]+d8\\\}.*"
  98 gdb_test "info register bnd2raw" ".*bnd2$test_string" "pure bnd2r register"
  99
 100 set test_string ".*\\\{lbound = 0x28, ubound_raw = 0x\[f\]+ce\\\}.*"
 101 gdb_test "info register bnd3raw" ".*bnd3$test_string" "pure bnd3r register"
 102
 103 # Setting fields on bnds
 104 set test_string ".*\\\{lbound = 0xa, ubound = 0x400\\\}.*"
 105 gdb_test "print \$bnd0.ubound = 0x400" "= \\\(void \\\*\\\) 0x400" "set value for bnd0.ubound"
 106 gdb_test "print  \$bnd0" "$test_string" "after setting bnd0.ubound"
 107 set test_string ".*\\\{lbound = 0xa, ubound_raw = 0x\[f\]+bff\\\}.*"
 108 gdb_test "print /x \$bnd0raw" "$test_string" "bnd0raw after set bnd0.ubound"
 109
 110 set test_string ".*\\\{lbound = 0x1, ubound = 0x400\\\}.*"
 111 gdb_test "print \$bnd0.lbound = 0x1" "= \\\(void \\\*\\\) 0x1" "set value for bnd0.lbound"
 112 gdb_test "print  \$bnd0" "$test_string" "after setting bnd0.lbound"
 113 set test_string ".*\\\{lbound = 0x1, ubound_raw = 0x\[f\]+bff\\\}.*"
 114 gdb_test "print /x \$bnd0raw" "$test_string" "bnd0raw after set bnd0.lbound"
 115
 116 # Setting fields on bnd0raw.
 117 set test_string ".*\\\{lbound = 0x1, ubound_raw = 0x600\\\}.*"
 118 gdb_test "print /x \$bnd0raw.ubound_raw = 0x600" "= 0x600" "set value for bnd0raw.ubound"
 119 gdb_test "print /x \$bnd0raw" "$test_string" "bnd0raw after setting bnd0raw.ubound"
 120 set test_string ".*\\\{lbound = 0x1, ubound = 0x\[f\]+9ff\\\}.*"
 121 gdb_test "print /x \$bnd0" "$test_string" "bnd0 after set bnd0raw.ubound"
 122
 123 set test_string ".*\\\{lbound = 0x100, ubound_raw = 0x600\\\}.*"
 124 gdb_test "print /x \$bnd0raw.lbound = 0x100" "= 0x100" "set value for bnd0raw.lbound"
 125 gdb_test "print /x \$bnd0raw" "$test_string" "bnd0raw after setting bnd0raw.lbound"
 126 set test_string ".*\\\{lbound = 0x100, ubound = 0x\[f\]+9ff\\\}.*"
 127 gdb_test "print /x \$bnd0" "$test_string" "bnd0 after set bnd0raw.lbound"
 128
 129 # Set full value bnd raw
 130 set test_string ".*\\\{lbound = 0x10, ubound_raw = 0x\[f\]+cff\\\}.*"
 131 gdb_test "print /x \$bnd0raw = {0x10, ~0x300}" "$test_string" "set full value for bnd0raw"
 132 set test_string ".*\\\{lbound = 0x10, ubound = 0x300\\\}.*"
 133 gdb_test "print /x \$bnd0" "$test_string" "bnd0raw after setting full bnd0raw"
 134
 135 # Set full value bnd
 136 set test_string ".*\\\{lbound = 0x10, ubound = 0x300\\\}.*"
 137 gdb_test "print /x \$bnd0 = {0x10, 0x300}" "$test_string" "set full value for bnd0"
 138 set test_string ".*\\\{lbound = 0x10, ubound_raw = 0x\[f\]+cff\\\}.*"
 139 gdb_test "print /x \$bnd0raw" "$test_string" "bnd0raw after setting full bnd0"
 140
 141 # Test bndcfg register and bndstatus after a failure on bndstr
 142 gdb_test "print \$bndstatus.status.error" "= 2" "bndstatus error is 2\
 143 after a failure on allocating an entry"
 144
 145 # Going to test the python extension for lenght.
 146 if { [skip_python_tests] } { continue }
 147 # Verify if size is right
 148 set test_string ".*\\\: size 17.*"
 149 gdb_test "print /x \$bnd0 = {0x10, 0x20}" "$test_string" "verify size for bnd0"
 150
 151 send_gdb "quit\n"