gdb/testsuite/gdb.base/longjmp.exp

   1 # Copyright 2008-2012 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 # Test support for stepping over longjmp.
  18 #
  19
  20
  21 set testfile "longjmp"
  22 set srcfile ${testfile}.c
  23 set binfile ${objdir}/${subdir}/${testfile}
  24
  25 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } {
  26      untested longjmp.exp
  27      return -1
  28 }
  29
  30 if [get_compiler_info ${binfile}] {
  31     return -1
  32 }
  33
  34 gdb_exit
  35 gdb_start
  36 gdb_reinitialize_dir $srcdir/$subdir
  37 gdb_load ${binfile}
  38
  39 if ![runto_main] then {
  40    fail "Can't run to main"
  41    return 0
  42 }
  43
  44 set bp_miss_step_1 [gdb_get_line_number "miss_step_1"]
  45 set bp_miss_step_2 [gdb_get_line_number "miss_step_2"]
  46
  47 set bp_start_test_1 [gdb_get_line_number "patt1"]
  48 set bp_start_test_2 [gdb_get_line_number "patt2"]
  49 set bp_start_test_3 [gdb_get_line_number "patt3"]
  50
  51 #
  52 # Pattern 1 - simple longjmp.
  53 #
  54
  55 delete_breakpoints
  56
  57 gdb_test "break $bp_start_test_1" \
  58     "Breakpoint.*at.* file .*$srcfile, line.*$bp_start_test_1.*" \
  59     "breakpoint at pattern 1 start"
  60 gdb_test "continue" "patt1.*" "continue to breakpoint at pattern 1 start"
  61
  62 # set safe-net break
  63 gdb_test "break $bp_miss_step_1" \
  64     "Breakpoint.*at.* file .*$srcfile, line.*$bp_miss_step_1.*" \
  65     "breakpoint at miss_step_1"
  66
  67 gdb_test "next" "longjmps\\+\\+;.*" "next over setjmp (1)"
  68 gdb_test "next" "longjmp \\(env, 1\\);.*" "next to longjmp (1)"
  69
  70 set msg "next over longjmp(1)"
  71 gdb_test_multiple "next" $msg {
  72     -re ".*patt1.*$gdb_prompt $" {
  73         pass $msg
  74         gdb_test "next" "resumes\\+\\+.*" "next into else block (1)"
  75         gdb_test "next" "miss_step_1.*" "next into safety net (1)"
  76     }
  77     -re "miss_step_1.*$gdb_prompt $" {
  78         fail $msg
  79     }
  80 }
  81
  82 #
  83 # Pattern 2 - longjmp from an inner function.
  84 #
  85
  86 delete_breakpoints
  87
  88 gdb_test "break $bp_start_test_2" \
  89     "Breakpoint.*at.* file .*$srcfile, line.*$bp_start_test_2.*" \
  90     "breakpoint at pattern 2 start"
  91 gdb_test "continue" "patt2.*" "continue to breakpoint at pattern 2 start"
  92
  93 # set safe-net break
  94 gdb_test "break $bp_miss_step_2" \
  95     "Breakpoint.*at.* file .*$srcfile, line.*$bp_miss_step_2.*" \
  96     "breakpoint at miss_step_2"
  97
  98 gdb_test "next" "call_longjmp.*" "next over setjmp (2)"
  99
 100 set msg "next over call_longjmp (2)"
 101 gdb_test_multiple "next" $msg {
 102     -re ".*patt2.*$gdb_prompt $" {
 103         pass $msg
 104
 105         gdb_test "next" "resumes\\+\\+.*" "next into else block (2)"
 106         gdb_test "next" "miss_step_2.*" "next into safety net (2)"
 107     }
 108     -re "miss_step_2.*$gdb_prompt $" {
 109         fail $msg
 110     }
 111 }
 112
 113 #
 114 # Pattern 3 - setjmp/longjmp inside stepped-over function.
 115 #
 116
 117 delete_breakpoints
 118
 119 gdb_test "break $bp_start_test_3" \
 120     "Breakpoint.*at.* file .*$srcfile, line.*$bp_start_test_3.*" \
 121     "breakpoint at pattern 3 start"
 122 gdb_test "continue" "patt3.*" "continue to breakpoint at pattern 3 start"
 123
 124 gdb_test "next" "longjmp caught.*" "next over patt3"