gdb/testsuite/gdb.base/breakpoint-shadow.exp

   1 # Copyright 2008-2019 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 standard_testfile
  17
  18 if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
  19     return -1
  20 }
  21
  22 # We need to start the inferior to place the breakpoints in the memory at all.
  23 if ![runto_main] {
  24     untested start
  25     return -1
  26 }
  27
  28 # The default "auto" mode removes all the breakpoints when we stop (and not
  29 # running the nonstop mode).  We would not be able to test the shadow.
  30 gdb_test_no_output "set breakpoint always-inserted on"
  31 gdb_test "show breakpoint always-inserted" "Always inserted breakpoint mode is on."
  32
  33 set match "\nDump of assembler code for function main:\r\n(.*)End of assembler dump.\r\n$gdb_prompt $"
  34
  35 set test "disassembly without breakpoints"
  36 gdb_test_multiple "disass main" $test {
  37     -re $match {
  38         set orig $expect_out(1,string)
  39         pass $test
  40     }
  41 }
  42
  43 gdb_test "b [gdb_get_line_number "break-first"]" "Breakpoint \[0-9\] at .*" "first breakpoint placed"
  44 gdb_test "b [gdb_get_line_number "break-second"]" "Breakpoint \[0-9\] at .*" "second breakpoint placed"
  45
  46 # Disassemble main, and compare the output to the original output
  47 # before breakpoints were inserted.  TEST is used as test message.
  48
  49 proc test_disassembly {test} {
  50     global match orig
  51
  52     gdb_test_multiple "disass main" $test {
  53         -re $match {
  54             set got $expect_out(1,string)
  55             if [string equal -nocase $orig $got] {
  56                 pass $test
  57             } else {
  58                 fail $test
  59             }
  60         }
  61     }
  62 }
  63
  64 test_disassembly "disassembly with breakpoints"
  65
  66 # Now check the interaction between the code cache and breakpoint
  67 # always-inserted mode.
  68
  69 # Recreate the code cache when breakpoints are already inserted.
  70 gdb_test_no_output "set code-cache off"
  71 gdb_test_no_output "set code-cache on"
  72
  73 test_disassembly "disassembly with breakpoints, fresh code cache"
  74
  75 # Delete breakpoints.  This should update the code cache as well.
  76 delete_breakpoints
  77
  78 test_disassembly "disassembly without breakpoints, no stale breakpoints"