gdb/testsuite/gdb.python/py-unwind.exp

   1 # Copyright (C) 2015-2020 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 # This file is part of the GDB testsuite.  It verifies that frame
  17 # unwinders can be implemented in Python.
  18
  19 load_lib gdb-python.exp
  20
  21 standard_testfile
  22
  23 # Stack protection can make the stack look a bit different, breaking the
  24 # assumptions this test has about its layout.
  25
  26 set flags "additional_flags=-fno-stack-protector"
  27
  28 if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} "debug $flags"] } {
  29     return -1
  30 }
  31
  32 # Skip all tests if Python scripting is not enabled.
  33 if { [skip_python_tests] } { continue }
  34
  35 # This test runs on a specific platform.
  36 if { ![istarget x86_64-*-* ] || ![is_lp64_target] } { continue }
  37
  38 # The following tests require execution.
  39
  40 if ![runto_main] then {
  41     fail "can't run to main"
  42     return 0
  43 }
  44
  45 set pyfile [gdb_remote_download host ${srcdir}/${subdir}/${testfile}.py]
  46
  47 gdb_breakpoint [gdb_get_line_number "break backtrace-broken"]
  48
  49 gdb_test "source ${pyfile}" "Python script imported" \
  50          "import python scripts"
  51
  52 gdb_continue_to_breakpoint "break backtrace-broken"
  53 gdb_test_sequence "where"  "Backtrace restored by unwinder" {
  54     "\\r\\n#0 .* corrupt_frame_inner \\(\\) at "
  55     "\\r\\n#1 .* corrupt_frame_outer \\(\\) at "
  56     "\\r\\n#2 .* main \\(.*\\) at"
  57 }
  58
  59 # Check that the Python unwinder frames can be flushed / released.
  60 gdb_test "flushregs" "Register cache flushed\\." "flush frames"