gdb/testsuite/gdb.dwarf2/callframecfa.exp

   1 # Copyright 2009-2021 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 load_lib dwarf.exp
  16
  17 # Test DW_OP_call_frame_cfa.
  18
  19 # This test can only be run on targets which support DWARF-2 and use gas.
  20 if {![dwarf2_support]} {
  21     return 0
  22 }
  23 # This test can only be run on x86 targets.
  24 if {![is_x86_like_target]} {
  25     return 0
  26 }
  27
  28 standard_testfile .S
  29
  30 if {[prepare_for_testing "failed to prepare" $testfile $srcfile \
  31          [list {additional_flags=-nostdlib}]]} {
  32     return -1
  33 }
  34
  35 if ![runto_main] {
  36     return -1
  37 }
  38
  39 gdb_test "break *func" "Breakpoint 2.*" "set breakpoint for call-frame-cfa"
  40 gdb_continue_to_breakpoint "continue to breakpoint for call-frame-cfa"
  41 gdb_test "display arg" "arg = 77" "set display for call-frame-cfa"
  42
  43 # We know how many instructions are in the function.  Note that we
  44 # can't handle the "ret" instruction due to the epilogue unwinder.
  45 for {set i 1} {$i < 5} {incr i} {
  46     gdb_test "si" "arg = 77" "step $i for call-frame-cfa"
  47 }