gdb/testsuite/gdb.base/stack-protector.exp

   1 # Copyright (C) 2019-2020 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 # Test breakpoints work correctly when stack protector is used.
  17
  18 # Note on Debian/Ubuntu, stack protector is on by default, and is
  19 # currently force disabled in gdb_compile due to the XFAIL below.
  20
  21 # Ensure the compiler is gcc/clang and is new enough to support stack
  22 # protection.
  23 if { !([test_compiler_info "gcc-*"] || [test_compiler_info "clang-*"])
  24      || [test_compiler_info {gcc-[0-3]-*}]
  25      || [test_compiler_info {gcc-4-0-*}]
  26      || [test_compiler_info {clang-[0-4]=*}] } {
  27     return 0
  28 }
  29
  30 standard_testfile
  31
  32 set protector_options { "-fno-stack-protector" "-fstack-protector" \
  33                         "-fstack-protector-all" "-fstack-protector-strong" }
  34
  35 proc simple_func_break_test { protection } {
  36     global testfile
  37     global srcfile
  38     global binfile
  39
  40     set options debug
  41     lappend options additional_flags=$protection
  42
  43     if {[prepare_for_testing "failed to prepare" $testfile $srcfile $options]} {
  44         return -1
  45     }
  46
  47     clean_restart ${binfile}
  48
  49     if { ![runto_main] } then {
  50         fail "can't run to main"
  51         return -1
  52     }
  53
  54     # Break on function foo and ensure it stops on the first line of code.
  55     gdb_breakpoint "foo"
  56
  57     if { $protection == "-fstack-protector-all"
  58          && [test_compiler_info "gcc-*"] } {
  59         setup_xfail "gcc/88432" "*-*-linux*"
  60     }
  61     gdb_continue_to_breakpoint "foo" ".*break here.*"
  62
  63     return 1
  64 }
  65
  66 foreach_with_prefix protection $protector_options {
  67     simple_func_break_test $protection
  68 }