gdb/testsuite/gdb.arch/aarch64-pauth.exp

   1 # Copyright (C) 2019-2022 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 a binary with address signing works regardless of whether the target
  17 # supports pauth instructions.  On non pauth systems, all pauth instructions
  18 # are treated as nops.
  19
  20 if {![is_aarch64_target]} {
  21     verbose "Skipping ${gdb_test_file_name}."
  22     return
  23 }
  24
  25 # Build program with address signing forced on.
  26 standard_testfile
  27 set compile_flags {debug}
  28 lappend compile_flags "additional_flags=-msign-return-address=all"
  29 lappend compile_flags "additional_flags=-fno-inline"
  30 if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} ${compile_flags}] } {
  31     return -1
  32 }
  33
  34 if ![runto_main] {
  35     untested "could not run to main"
  36     return -1
  37 }
  38
  39 gdb_breakpoint [ gdb_get_line_number "break here" ]
  40 gdb_continue_to_breakpoint "break here" ".*break here.*"
  41
  42 # Ensure we can get a full backtrace, despite the address signing.
  43 gdb_test "bt" \
  44     [multi_line \
  45         "#0\[ \t\]+bar \\(b=9\\) at \[^\r\n\]+" \
  46         "#1\[ \t\]+$hex (\\\[PAC\\\] )?in foo \\(a=5\\) at \[^\r\n\]+" \
  47         "#2\[ \t\]+$hex (\\\[PAC\\\] )?in main \\(\\) at \[^\r\n\]+" ] \
  48     "backtrace"