gdb/testsuite/gdb.base/catch-signal.exp

   1 # Copyright 2012-2019 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 if [target_info exists gdb,nosignals] {
  17     verbose "Skipping catch-signal.exp because of nosignals."
  18     continue
  19 }
  20
  21 standard_testfile
  22
  23 if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
  24     return -1
  25 }
  26
  27 proc test_catch_signal {signame} {
  28     global srcfile
  29
  30     with_test_prefix $signame {
  31         if {![runto_main]} {
  32             return -1
  33         }
  34
  35         # Test "catch signal" without arguments.
  36         # Don't let the signal be handled otherwise.
  37         gdb_breakpoint ${srcfile}:[gdb_get_line_number "first HUP"]
  38         gdb_continue_to_breakpoint "first HUP"
  39         gdb_test "handle SIGHUP nostop noprint pass" \
  40             "SIGHUP.*No.*No.*Yes.*"
  41         gdb_test "catch signal" "Catchpoint .*"
  42         gdb_test "continue" "Catchpoint .*"
  43
  44         # Now ensure that the "pass" setting worked, and also that we did not
  45         # see gdb's SIGTRAP.
  46         gdb_breakpoint ${srcfile}:[gdb_get_line_number "handle marker"]
  47         gdb_continue_to_breakpoint "handle marker"
  48
  49         delete_breakpoints
  50
  51         # Catch just $SIGNAME.
  52         gdb_breakpoint ${srcfile}:[gdb_get_line_number "second HUP"]
  53         gdb_continue_to_breakpoint "second HUP"
  54         gdb_test "catch signal $signame" "Catchpoint .*"
  55         gdb_test "continue" "Catchpoint .*"
  56         delete_breakpoints
  57
  58         # Catch just SIGUSR1 -- but it isn't sent.
  59         gdb_breakpoint ${srcfile}:[gdb_get_line_number "third HUP"]
  60         gdb_continue_to_breakpoint "third HUP"
  61         gdb_test "handle SIGUSR1 nostop noprint pass" \
  62             "SIGUSR1.*No.*No.*Yes.*"
  63         gdb_test "catch signal SIGUSR1" "Catchpoint .*"
  64
  65         # Also verify that if we set SIGHUP to "nopass", then it is
  66         # still not delivered.
  67         gdb_breakpoint ${srcfile}:[gdb_get_line_number "handle marker"]
  68         gdb_test "handle SIGHUP nostop noprint nopass" \
  69             "SIGHUP.*No.*No.*No.*"
  70
  71         gdb_breakpoint ${srcfile}:[gdb_get_line_number "fourth HUP"]
  72         gdb_continue_to_breakpoint "fourth HUP"
  73         delete_breakpoints
  74
  75         # Verify an internal signal used by gdb is properly caught.
  76         gdb_breakpoint ${srcfile}:[gdb_get_line_number "first INT"]
  77         gdb_continue_to_breakpoint "first INT"
  78         set test "override SIGINT to catch"
  79         gdb_test "handle SIGINT nostop print nopass" \
  80             "SIGINT.*No.*Yes.*No.*" \
  81             "$test" \
  82             "SIGINT is used by the debugger.*Are you sure you want to change it.*y or n.*" \
  83             y
  84         gdb_test "catch signal SIGINT" "Catchpoint .*"
  85         gdb_test "continue" "Catchpoint .* SIGINT.*"
  86
  87     }
  88 }
  89
  90 # Test with symbolic signal.
  91 test_catch_signal SIGHUP
  92
  93 # Test with numeric signal.
  94 clean_restart $testfile
  95 test_catch_signal 1
  96
  97 # Test with two signals in catchpoint.
  98 clean_restart $testfile
  99 test_catch_signal "SIGHUP SIGUSR2"
 100
 101 #
 102 # Coverage tests.
 103 #
 104
 105 gdb_test "catch signal SIGZARDOZ" "Unknown signal name 'SIGZARDOZ'."
 106 gdb_test "catch signal all" "Catchpoint .*"
 107 gdb_test "catch signal all SIGHUP" "'all' cannot be caught with other signals"
 108 gdb_test "catch signal SIGHUP all" "'all' cannot be caught with other signals"
 109
 110 set i 0
 111 foreach {arg desc} {"" "standard signals" \
 112                         SIGHUP SIGHUP \
 113                         "SIGHUP SIGUSR2" "SIGHUP SIGUSR2" \
 114                         all "any signal"} {
 115     delete_breakpoints
 116     gdb_test "catch signal $arg" "Catchpoint .*" \
 117         "set catchpoint '$arg' for printing"
 118     gdb_test "info break" "$decimal.*catchpoint.*signal.*$desc.*" \
 119         "info break for '$arg'"
 120     gdb_breakpoint "main"
 121     gdb_test "save breakpoints [standard_output_file bps.$i]" \
 122         "Saved to file .*bps.$i.*" \
 123         "save breakpoints for '$arg'"
 124
 125     set filename [remote_upload host [standard_output_file bps.$i] \
 126                       [standard_output_file bps-local.$i]]
 127     set fd [open $filename]
 128     set file_data [read $fd]
 129     set data [split $file_data "\n"]
 130     close $fd
 131
 132     if {$arg == ""} {
 133         set pattern "catch signal"
 134     } else {
 135         set pattern "catch signal $arg"
 136     }
 137     gdb_assert {[expr [llength $data] == 3]} \
 138         "Number of lines of save breakpoints for '$arg'"
 139     # Check the first line.
 140     gdb_assert {[string match $pattern [lindex $data 0]]} \
 141         "1st line of save breakpoints for '$arg'"
 142     # Check the second line.
 143     gdb_assert {[string match "break main" [lindex $data 1]]} \
 144         "2nd line of save breakpoints for '$arg'"
 145     # Check the trailing newline.
 146     gdb_assert {[string match "" [lindex $data 2]]} \
 147         "Trailing newline of save breakpoints for '$arg'"
 148
 149     incr i
 150 }