gdb/testsuite/gdb.multi/watchpoint-multi.exp

   1 # Copyright 2012 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 set testfile "watchpoint-multi"
  17
  18 # Multiple inferiors are needed, therefore both native and extended gdbserver
  19 # modes are supported.  Only non-extended gdbserver is not supported.
  20 if [target_info exists use_gdb_stub] {
  21     untested ${testfile}.exp
  22     return
  23 }
  24
  25 # Do not use simple hardware watchpoints ("watch") as its false hit may be
  26 # unnoticed by GDB if it reads it still has the same value.
  27 if [skip_hw_watchpoint_access_tests] {
  28     untested "${testfile} (no hardware access watchpoints)"
  29     return
  30 }
  31
  32 set executable ${testfile}
  33 set srcfile ${testfile}.c
  34 set binfile ${objdir}/${subdir}/${executable}
  35
  36 if { [gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  37     untested ${testfile}.exp
  38     return -1
  39 }
  40
  41 clean_restart $executable
  42
  43 # Simulate non-stop+target-async which also uses breakpoint always-inserted.
  44 gdb_test_no_output "set breakpoint always-inserted on"
  45 # displaced-stepping is also needed as other GDB sometimes still removes the
  46 # breakpoints, even with always-inserted on.
  47 # Without the support this test just is not as thorough as it could be.
  48 if [support_displaced_stepping] {
  49     gdb_test_no_output "set displaced-stepping on"
  50 }
  51
  52 # Debugging of this testcase:
  53 #gdb_test_no_output "maintenance set show-debug-regs on"
  54 #gdb_test_no_output "set debug infrun 1"
  55
  56 gdb_breakpoint main {temporary}
  57 gdb_test "run" "Temporary breakpoint.* main .*" "start to main inferior 1"
  58
  59 gdb_test "add-inferior" "Added inferior 2"
  60 gdb_test "inferior 2" "witching to inferior 2 .*"
  61 gdb_load $binfile
  62
  63 gdb_breakpoint main {temporary}
  64 gdb_test "run" "Temporary breakpoint.* main .*" "start to main inferior 2"
  65
  66 gdb_test "awatch c" "Hardware access \\(read/write\\) watchpoint \[0-9\]+: c"
  67
  68 gdb_breakpoint "marker_exit"
  69
  70 gdb_test "inferior 1" "witching to inferior 1 .*"
  71
  72 if [skip_hw_watchpoint_multi_tests] {
  73     # On single hardware watchpoint at least test the watchpoint in inferior
  74     # 2 is not hit.
  75 } else {
  76     gdb_test "awatch b" "Hardware access \\(read/write\\) watchpoint \[0-9\]+: b"
  77
  78     gdb_test "inferior 2" "witching to inferior 2 .*"
  79
  80     # FAIL would be a hit on watchpoint for `b' - that one is for the other
  81     # inferior.
  82     gdb_test "continue" "Hardware access \\(read/write\\) watchpoint \[0-9\]+: c\r\n\r\nOld value = 0\r\nNew value = 3\r\n.*" "catch c"
  83
  84     gdb_test "continue" "Breakpoint \[0-9\]+, marker_exit .*" "catch marker_exit in inferior 2"
  85
  86     gdb_test "inferior 1" "witching to inferior 1 .*"
  87
  88     gdb_test "continue" "Hardware access \\(read/write\\) watchpoint \[0-9\]+: b\r\n\r\nOld value = 0\r\nNew value = 2\r\n.*" "catch b"
  89 }
  90
  91 gdb_test "continue" "Breakpoint \[0-9\]+, marker_exit .*" "catch marker_exit in inferior 1"