gdb/testsuite/gdb.base/siginfo-obj.exp

   1 # Copyright 2004, 2007, 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
  17 # The program siginfo-obj.c arranges for a signal handler registered
  18 # using sigaction's sa_sigaction / SA_SIGINFO to be called with
  19 # si_addr filled in.
  20
  21 # This test confirms that we can inspect signal info using the
  22 # $_siginfo convenience variable.
  23
  24 if [target_info exists gdb,nosignals] {
  25     verbose "Skipping siginfo-obj.exp because of nosignals."
  26     continue
  27 }
  28
  29 if { ! [istarget "i?86-*-linux*"]
  30      && ! [istarget "x86_64-*-linux*"]
  31      && ! [istarget "arm*-*-linux*"] } {
  32     verbose "Skipping siginfo-obj.exp because of lack of support."
  33     return
  34 }
  35
  36 if $tracelevel then {
  37     strace $tracelevel
  38 }
  39
  40
  41 set testfile siginfo-obj
  42 set srcfile ${testfile}.c
  43 set binfile ${objdir}/${subdir}/${testfile}
  44 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  45     untested "Couldn't compile ${srcfile}.c"
  46     return -1
  47 }
  48
  49 # get things started
  50 gdb_exit
  51 gdb_start
  52 gdb_reinitialize_dir $srcdir/$subdir
  53 gdb_load ${binfile}
  54
  55 # Advance to main
  56 if { ![runto_main] } then {
  57     gdb_suppress_tests;
  58 }
  59
  60 # Run to the signal.
  61 gdb_test "continue" ".*Program received signal SIGSEGV.*" "continue to signal"
  62
  63 set ssi_addr ""
  64 set test "Extract si_addr"
  65 gdb_test_multiple "p \$_siginfo" "$test" {
  66     -re "si_addr = ($hex).*$gdb_prompt $" {
  67         set ssi_addr $expect_out(1,string)
  68         pass "$test"
  69     }
  70 }
  71
  72 set test "Extract si_errno"
  73 gdb_test_multiple "p \$_siginfo" "$test" {
  74     -re "si_errno = (\[0-9\]\+).*$gdb_prompt $" {
  75         set ssi_errno $expect_out(1,string)
  76         pass "$test"
  77     }
  78 }
  79
  80 set test "Extract si_code"
  81 gdb_test_multiple "p \$_siginfo" "$test" {
  82     -re "si_code = (\[0-9\]\+).*$gdb_prompt $" {
  83         set ssi_code $expect_out(1,string)
  84         pass "$test"
  85     }
  86 }
  87
  88 set test "Extract si_signo"
  89 gdb_test_multiple "p \$_siginfo" "$test" {
  90     -re "si_signo = (\[0-9\]\+).*$gdb_prompt $" {
  91         set ssi_signo $expect_out(1,string)
  92         pass "$test"
  93     }
  94 }
  95
  96 set bp_location [gdb_get_line_number "set breakpoint here"]
  97
  98 gdb_test "break $bp_location"
  99 gdb_test "continue" ".* handler .*" "continue to handler"
 100
 101 gdb_test "p ssi_addr" " = \\(void \\*\\) $ssi_addr"
 102 gdb_test "p ssi_errno" " = $ssi_errno"
 103 gdb_test "p ssi_code" " = $ssi_code"
 104 gdb_test "p ssi_signo" " = $ssi_signo"
 105
 106 # Again, but this time, patch si_addr and check that the inferior sees
 107 # the changed value.
 108
 109 # Advance to main
 110 if { ![runto_main] } then {
 111     gdb_suppress_tests;
 112 }
 113
 114 # Run to the signal.
 115 gdb_test "continue" ".*Program received signal SIGSEGV.*" "continue to signal"
 116
 117 set test "Set si_addr"
 118 gdb_test "p \$_siginfo._sifields._sigfault.si_addr = 0x666" " = \\(void \\*\\) 0x666"
 119 gdb_test "p \$_siginfo.si_errno = 666" " = 666"
 120 gdb_test "p \$_siginfo.si_code = 999" " = 999"
 121 gdb_test "p \$_siginfo.si_signo = 11" " = 11"
 122
 123 gdb_test "break $bp_location"
 124 gdb_test "continue" ".* handler .*" "continue to handler"
 125
 126 gdb_test "p ssi_addr" " = \\(void \\*\\) 0x666"
 127 gdb_test "p ssi_errno" " = 666"
 128 gdb_test "p ssi_code" " = 999"
 129 gdb_test "p ssi_signo" " = 11"