gdb/testsuite/gdb.base/sigstep.exp

   1 # Copyright 2004 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 2 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, write to the Free Software
  15 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  16
  17
  18 # The program sigstep.c creates a very simple backtrace containing one
  19 # signal handler and signal trampoline.
  20
  21 # This test runs the program up to the signal handler, and then
  22 # attempts to step/next the inferior back to main.
  23
  24 if [target_info exists gdb,nosignals] {
  25     verbose "Skipping sigstep.exp because of nosignals."
  26     continue
  27 }
  28
  29 if $tracelevel then {
  30     strace $tracelevel
  31 }
  32
  33 set prms_id 0
  34 set bug_id 0
  35
  36 set testfile sigstep
  37 set srcfile ${testfile}.c
  38 set binfile ${objdir}/${subdir}/${testfile}
  39 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  40     untested "Couldn't compile ${module}.c"
  41     return -1
  42 }
  43
  44 # get things started
  45 gdb_exit
  46 gdb_start
  47 gdb_reinitialize_dir $srcdir/$subdir
  48 gdb_load ${binfile}
  49
  50 gdb_test "display/i \$pc"
  51
  52 # Advance to main
  53 if { ![runto_main] } then {
  54     gdb_suppress_tests;
  55 }
  56
  57 # Pass all the alarms straight through (but verbosely)
  58 # gdb_test "handle SIGALRM print pass nostop"
  59 # gdb_test "handle SIGVTALRM print pass nostop"
  60 # gdb_test "handle SIGPROF print pass nostop"
  61
  62 # Run to the signal handler, validate the backtrace.
  63 gdb_test "break handler"
  64 gdb_test "continue" ".* handler .*" "continue to stepi handler"
  65 send_gdb "bt\n"
  66 gdb_expect_list "backtrace for nexti" ".*$gdb_prompt $" {
  67     "\[\r\n\]+.0 \[^\r\n\]* handler "
  68     "\[\r\n\]+.1  .signal handler called."
  69     "\[\r\n\]+.2 \[^\r\n\]* main .*"
  70 }
  71
  72 proc advance { i } {
  73     global gdb_prompt
  74
  75     # Get us back into the handler
  76     rerun_to_main
  77     gdb_test "continue" ".* handler .*" "continue to handler for $i"
  78
  79     set test "$i out of handler"
  80     gdb_test_multiple "$i" "${test}" {
  81         -re "done = 1;.*${gdb_prompt} $" {
  82             send_gdb "$i\n"
  83             exp_continue
  84         }
  85         -re "\} .. handler .*${gdb_prompt} $" {
  86             send_gdb "$i\n"
  87             exp_continue
  88         }
  89         -re "Program exited normally.*${gdb_prompt} $" {
  90             kfail gdb/1613 "$test (Program exited normally)"
  91         }
  92         -re "while ..done.*${gdb_prompt} $" {
  93             # After stepping out of a function, GDB might find that
  94             # the inferior is already at the first instruction of this
  95             # line.
  96             pass "$test"
  97         }
  98         -re "return 0.*${gdb_prompt} $" {
  99             # After stepping out of a function, GDB will advance the
 100             # inferior to the start of the next line.
 101             pass "$test"
 102         }
 103     }
 104 }
 105
 106 proc advancei { i } {
 107     global gdb_prompt
 108     set program_exited 0
 109
 110     # Get us back into the handler
 111     rerun_to_main
 112     gdb_test "continue" ".* handler .*" "continue to handler for $i"
 113
 114     set test "$i into signal trampoline"
 115     gdb_test_multiple "$i" "${test}" {
 116         -re "done = 1;.*${gdb_prompt} $" {
 117             send_gdb "$i\n"
 118             exp_continue
 119         }
 120         -re "\} .. handler .*${gdb_prompt} $" {
 121             send_gdb "$i\n"
 122             exp_continue
 123         }
 124         -re "signal handler called.*${gdb_prompt} $" {
 125             pass "$test"
 126         }
 127         -re "Program exited normally.*${gdb_prompt} $" {
 128             kfail gdb/1613 "$test (Program exited normally)"
 129             set program_exited 1
 130         }
 131         -re "main .*${gdb_prompt} $" {
 132             fail "$test (in main)"
 133         }
 134         -re "Make handler return now.*y or n. $" {
 135             send_gdb "y\n"
 136             exp_continue
 137         }
 138     }
 139
 140     set test "$i out of signal trampoline"
 141     gdb_test_multiple "$i" "${test}" {
 142         -re "while .*${gdb_prompt} $" {
 143             pass "$test (in main)"
 144         }
 145         -re "signal handler called.*${gdb_prompt} $" {
 146             send_gdb "$i\n"
 147             exp_continue
 148         }
 149         -re "return .*${gdb_prompt} $" {
 150             fail "$test (stepped)"
 151         }
 152         -re "Make .*frame return now.*y or n. $" {
 153             send_gdb "y\n"
 154             exp_continue
 155         }
 156         -re "The program is not being run.*${gdb_prompt} $" {
 157             if { $program_exited } {
 158                 # Previously kfailed with an exit
 159                 pass "$test (The program is not being run)"
 160             } else {
 161                 fail "$test"
 162             }
 163         }
 164     }
 165 }
 166
 167 advance step
 168 advancei stepi
 169
 170 advance next
 171 advancei nexti
 172
 173 advancei finish
 174 advancei return