gdb/testsuite/gdb.base/call-signal-resume.exp

   1 # Copyright 2008-2015 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 # Test inferior resumption after discarding a hand-called function.
  17 # There are two things to test.
  18 # 1) Inferior stops normally.  Upon resumption it should continue normally,
  19 #    regardless of whatever signal the hand-called function got.
  20 # 2) Inferior is stopped at a signal.  Upon resumption it should continue
  21 #    with that signal, regardless of whatever the hand-called function did.
  22
  23 if [target_info exists gdb,nosignals] {
  24     verbose "Skipping call-signal-resume.exp because of nosignals."
  25     continue
  26 }
  27
  28
  29 standard_testfile call-signals.c
  30
  31 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  32      untested call-signal-resume.exp
  33      return -1
  34 }
  35
  36 # Some targets can't do function calls, so don't even bother with this
  37 # test.
  38 if [target_info exists gdb,cannot_call_functions] {
  39     setup_xfail "*-*-*" 2416
  40     fail "This target can not call functions"
  41     continue
  42 }
  43
  44 proc get_dummy_frame_number { } {
  45     global gdb_prompt
  46
  47     gdb_test_multiple "bt" "backtrace" {
  48         -re "#(\[0-9\]*) *<function called from gdb>.*$gdb_prompt $" {
  49             return $expect_out(1,string)
  50         }
  51     }
  52     return ""
  53 }
  54
  55 # Start with a fresh gdb.
  56
  57 clean_restart ${binfile}
  58
  59 if { ![runto_main] } {
  60     fail "Can't run to main"
  61     return 0
  62 }
  63
  64 gdb_test "break stop_one" "Breakpoint \[0-9\]* at .*"
  65 gdb_test "continue" "Continuing.*Breakpoint \[0-9\]*, stop_one.*" \
  66     "continue to breakpoint at stop_one"
  67
  68 # Call function (causing the program to get a signal), and see if gdb handles
  69 # it properly.
  70 if {[gdb_test "call gen_signal ()"  \
  71          "\[\r\n\]*The program being debugged was signaled.*" \
  72          "inferior function call signaled"] != 0} {
  73     return 0
  74 }
  75
  76 set frame_number [get_dummy_frame_number]
  77 if { "$frame_number" == "" } {
  78     fail "dummy stack frame number"
  79     setup_xfail "*-*-*"
  80 } else {
  81     pass "dummy stack frame number"
  82 }
  83
  84 # Pop the dummy frame.
  85 gdb_test "frame $frame_number" ".*"
  86 gdb_test_no_output "set confirm off"
  87 gdb_test "return" ""
  88
  89 # Verify there are no remains of the dummy frame.
  90 gdb_test_no_output "maintenance print dummy-frames"
  91 set test "maintenance info breakpoints"
  92 gdb_test_multiple $test $test {
  93     -re " call dummy .*\r\n$gdb_prompt $" {
  94         fail $test
  95     }
  96     -re "\r\n$gdb_prompt $" {
  97         pass $test
  98     }
  99 }
 100
 101 # Resume execution, the program should continue without any signal.
 102
 103 gdb_test "break stop_two" "Breakpoint \[0-9\]* at .*"
 104 gdb_test "continue" "Breakpoint \[0-9\]*, stop_two.*" \
 105     "continue to breakpoint at stop_two"
 106
 107 # Continue again, we should get a signal.
 108
 109 gdb_test "continue" "Program received signal .*" \
 110     "continue to receipt of signal"
 111
 112 # Hand call another function that prematurely stops,
 113 # then manually pop the dummy stack frame.
 114
 115 gdb_test "break null_hand_call" "Breakpoint \[0-9\]* at .*"
 116 gdb_test "call null_hand_call ()" "Breakpoint \[0-9\]*, null_hand_call.*" \
 117     "null_hand_call"
 118
 119 set frame_number [get_dummy_frame_number]
 120 if { "$frame_number" == "" } {
 121     fail "dummy stack frame number"
 122     setup_xfail "*-*-*"
 123     # Need something.
 124     set frame_number 0
 125 } else {
 126     pass "dummy stack frame number"
 127 }
 128
 129 # Pop the dummy frame.
 130 gdb_test "frame $frame_number" ".*"
 131 gdb_test_no_output "set confirm off"
 132 gdb_test "return" ""
 133
 134 # Continue again, this time we should get to the signal handler.
 135
 136 gdb_test "break handle_signal" "Breakpoint \[0-9\]* at .*"
 137 gdb_test "continue" "Breakpoint \[0-9\]*, handle_signal.*" \
 138     "continue to breakpoint at handle_signal"
 139
 140 # Continue one last time, the program should exit normally.
 141
 142 gdb_test "continue" "$inferior_exited_re normally." \
 143     "continue to program exit"
 144
 145 return 0