gdb/testsuite/gdb.python/py-frame-inline.exp

   1 # Copyright (C) 2011-2020 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 load_lib gdb-python.exp
  17
  18 standard_testfile
  19
  20 if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] } {
  21     return -1
  22 }
  23
  24 # Skip all tests if Python scripting is not enabled.
  25 if { [skip_python_tests] } { continue }
  26
  27 if ![runto main] then {
  28     fail "can't run to function f"
  29     return 0
  30 }
  31
  32 gdb_breakpoint [gdb_get_line_number "break-here"]
  33 gdb_continue_to_breakpoint "Block break here."
  34
  35 gdb_test "info frame" "inlined into frame 1\r\n.*"
  36
  37 gdb_test "up" "#1  g .*"
  38
  39 gdb_test "python print (gdb.selected_frame().read_var('l'))" "\r\n42"
  40
  41 # A regression test for having a backtrace limit that forces unwinding
  42 # to stop after an inline frame.  GDB needs to compute the frame_id of
  43 # the inline frame, which requires unwinding past all the inline
  44 # frames to the real stack frame, even if that means bypassing the
  45 # user visible backtrace limit.  See PR backtrace/15558.
  46 #
  47 # Set the limit, and run to an inline function.  It's important that
  48 # the frame cache is flushed somehow after setting the limit, to force
  49 # frame id recomputation.
  50 gdb_test_no_output "set backtrace limit 1"
  51 gdb_continue_to_breakpoint "Block break here."
  52
  53 gdb_test "python print (gdb.newest_frame())" ".*"
  54
  55 # Regression test to verify that Frame.function works properly for
  56 # inline frames.
  57 gdb_test "python print (gdb.newest_frame().function())" "f"