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

   1 # Copyright 2008-2013 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,noinferiorio] {
  24     verbose "Skipping call-signal-resume.exp because of no fileio capabilities."
  25     continue
  26 }
  27
  28 if [target_info exists gdb,nosignals] {
  29     verbose "Skipping call-signal-resume.exp because of nosignals."
  30     continue
  31 }
  32
  33
  34 standard_testfile call-signals.c
  35
  36 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  37      untested call-signal-resume.exp
  38      return -1
  39 }
  40
  41 # Some targets can't do function calls, so don't even bother with this
  42 # test.
  43 if [target_info exists gdb,cannot_call_functions] {
  44     setup_xfail "*-*-*" 2416
  45     fail "This target can not call functions"
  46     continue
  47 }
  48
  49 proc get_dummy_frame_number { } {
  50     global gdb_prompt
  51
  52     gdb_test_multiple "bt" "backtrace" {
  53         -re "#(\[0-9\]*) *<function called from gdb>.*$gdb_prompt $" {
  54             return $expect_out(1,string)
  55         }
  56     }
  57     return ""
  58 }
  59
  60 # Start with a fresh gdb.
  61
  62 clean_restart ${binfile}
  63
  64 if { ![runto_main] } {
  65     fail "Can't run to main"
  66     return 0
  67 }
  68
  69 gdb_test "break stop_one" "Breakpoint \[0-9\]* at .*"
  70 gdb_test "continue" "Continuing.*Breakpoint \[0-9\]*, stop_one.*" \
  71     "continue to breakpoint at stop_one"
  72
  73 # Call function (causing the program to get a signal), and see if gdb handles
  74 # it properly.
  75 gdb_test_multiple "call gen_signal ()" \
  76         "inferior function call signaled" {
  77     -re "\[\r\n\]*no signal\[\r\n\]+$gdb_prompt $" {
  78         unsupported "inferior function call signaled"
  79         return 0
  80     }
  81     -re "\[\r\n\]*The program being debugged was signaled.*\[\r\n\]+$gdb_prompt $" {
  82         pass "inferior function call signaled"
  83     }
  84 }
  85
  86 set frame_number [get_dummy_frame_number]
  87 if { "$frame_number" == "" } {
  88     fail "dummy stack frame number"
  89     setup_xfail "*-*-*"
  90 } else {
  91     pass "dummy stack frame number"
  92 }
  93
  94 # Pop the dummy frame.
  95 gdb_test "frame $frame_number" ".*"
  96 gdb_test_no_output "set confirm off"
  97 gdb_test "return" ""
  98
  99 # Verify there are no remains of the dummy frame.
 100 gdb_test_no_output "maintenance print dummy-frames"
 101 set test "maintenance info breakpoints"
 102 gdb_test_multiple $test $test {
 103     -re " call dummy .*\r\n$gdb_prompt $" {
 104         fail $test
 105     }
 106     -re "\r\n$gdb_prompt $" {
 107         pass $test
 108     }
 109 }
 110
 111 # Resume execution, the program should continue without any signal.
 112
 113 gdb_test "break stop_two" "Breakpoint \[0-9\]* at .*"
 114 gdb_test "continue" "Breakpoint \[0-9\]*, stop_two.*" \
 115     "continue to breakpoint at stop_two"
 116
 117 # Continue again, we should get a signal.
 118
 119 gdb_test "continue" "Program received signal .*" \
 120     "continue to receipt of signal"
 121
 122 # Hand call another function that prematurely stops,
 123 # then manually pop the dummy stack frame.
 124
 125 gdb_test "break null_hand_call" "Breakpoint \[0-9\]* at .*"
 126 gdb_test "call null_hand_call ()" "Breakpoint \[0-9\]*, null_hand_call.*" \
 127     "null_hand_call"
 128
 129 set frame_number [get_dummy_frame_number]
 130 if { "$frame_number" == "" } {
 131     fail "dummy stack frame number"
 132     setup_xfail "*-*-*"
 133     # Need something.
 134     set frame_number 0
 135 } else {
 136     pass "dummy stack frame number"
 137 }
 138
 139 # Pop the dummy frame.
 140 gdb_test "frame $frame_number" ".*"
 141 gdb_test_no_output "set confirm off"
 142 gdb_test "return" ""
 143
 144 # Continue again, this time we should get to the signal handler.
 145
 146 gdb_test "break handle_signal" "Breakpoint \[0-9\]* at .*"
 147 gdb_test "continue" "Breakpoint \[0-9\]*, handle_signal.*" \
 148     "continue to breakpoint at handle_signal"
 149
 150 # Continue one last time, the program should exit normally.
 151
 152 gdb_test "continue" "$inferior_exited_re normally." \
 153     "continue to program exit"
 154
 155 return 0