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

   1 # Copyright 2008, 2010 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 $tracelevel then {
  24         strace $tracelevel
  25 }
  26
  27 if [target_info exists gdb,noinferiorio] {
  28     verbose "Skipping call-signal-resume.exp because of no fileio capabilities."
  29     continue
  30 }
  31
  32 if [target_info exists gdb,nosignals] {
  33     verbose "Skipping call-signal-resume.exp because of nosignals."
  34     continue
  35 }
  36
  37 set prms_id 0
  38 set bug_id 0
  39
  40 set testfile "call-signals"
  41 set srcfile ${testfile}.c
  42 set binfile ${objdir}/${subdir}/${testfile}
  43
  44 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  45      untested call-signal-resume.exp
  46      return -1
  47 }
  48
  49 # Some targets can't do function calls, so don't even bother with this
  50 # test.
  51 if [target_info exists gdb,cannot_call_functions] {
  52     setup_xfail "*-*-*" 2416
  53     fail "This target can not call functions"
  54     continue
  55 }
  56
  57 proc get_dummy_frame_number { } {
  58   global gdb_prompt
  59
  60   send_gdb "bt\n"
  61   gdb_expect {
  62     -re "#(\[0-9\]*) *<function called from gdb>.*$gdb_prompt $"
  63       {
  64         return $expect_out(1,string)
  65       }
  66     -re "$gdb_prompt $"
  67       {
  68         return ""
  69       }
  70     timeout
  71       {
  72         return ""
  73       }
  74   }
  75   return ""
  76 }
  77
  78 # Start with a fresh gdb.
  79
  80 gdb_exit
  81 gdb_start
  82 gdb_reinitialize_dir $srcdir/$subdir
  83 gdb_load ${binfile}
  84
  85 if { ![runto_main] } {
  86     fail "Can't run to main"
  87     return 0
  88 }
  89
  90 gdb_test "break stop_one" "Breakpoint \[0-9\]* at .*"
  91 gdb_test "continue" "Continuing.*Breakpoint \[0-9\]*, stop_one.*" \
  92     "continue to breakpoint at stop_one"
  93
  94 # Call function (causing the program to get a signal), and see if gdb handles
  95 # it properly.
  96 gdb_test_multiple "call gen_signal ()" \
  97         "inferior function call signaled" {
  98     -re "\[\r\n\]*no signal\[\r\n\]+$gdb_prompt $" {
  99         unsupported "inferior function call signaled"
 100         return 0
 101     }
 102     -re "\[\r\n\]*The program being debugged was signaled.*\[\r\n\]+$gdb_prompt $" {
 103         pass "inferior function call signaled"
 104     }
 105 }
 106
 107 set frame_number [get_dummy_frame_number]
 108 if { "$frame_number" == "" } {
 109     fail "dummy stack frame number"
 110     setup_xfail "*-*-*"
 111 } else {
 112     pass "dummy stack frame number"
 113 }
 114
 115 # Pop the dummy frame.
 116 gdb_test "frame $frame_number" ""
 117 gdb_test "set confirm off" ""
 118 gdb_test "return" ""
 119
 120 # Resume execution, the program should continue without any signal.
 121
 122 gdb_test "break stop_two" "Breakpoint \[0-9\]* at .*"
 123 gdb_test "continue" "Breakpoint \[0-9\]*, stop_two.*" \
 124     "continue to breakpoint at stop_two"
 125
 126 # Continue again, we should get a signal.
 127
 128 gdb_test "continue" "Program received signal .*" \
 129     "continue to receipt of signal"
 130
 131 # Hand call another function that prematurely stops,
 132 # then manually pop the dummy stack frame.
 133
 134 gdb_test "break null_hand_call" "Breakpoint \[0-9\]* at .*"
 135 gdb_test "call null_hand_call ()" "Breakpoint \[0-9\]*, null_hand_call.*" \
 136     "null_hand_call"
 137
 138 set frame_number [get_dummy_frame_number]
 139 if { "$frame_number" == "" } {
 140     fail "dummy stack frame number"
 141     setup_xfail "*-*-*"
 142     # Need something.
 143     set frame_number 0
 144 } else {
 145     pass "dummy stack frame number"
 146 }
 147
 148 # Pop the dummy frame.
 149 gdb_test "frame $frame_number" ""
 150 gdb_test "set confirm off" ""
 151 gdb_test "return" ""
 152
 153 # Continue again, this time we should get to the signal handler.
 154
 155 gdb_test "break handle_signal" "Breakpoint \[0-9\]* at .*"
 156 gdb_test "continue" "Breakpoint \[0-9\]*, handle_signal.*" \
 157     "continue to breakpoint at handle_signal"
 158
 159 # Continue one last time, the program should exit normally.
 160
 161 gdb_test "continue" "Program exited normally." \
 162     "continue to program exit"
 163
 164 return 0