gdb/testsuite/gdb.base/longjmp.exp

   1 # Copyright 2008, 2009, 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 # Test support for stepping over longjmp.
  18 #
  19
  20 if $tracelevel then {
  21     strace $tracelevel
  22 }
  23
  24
  25 set testfile "longjmp"
  26 set srcfile ${testfile}.c
  27 set binfile ${objdir}/${subdir}/${testfile}
  28
  29 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } {
  30      untested longjmp.exp
  31      return -1
  32 }
  33
  34 if [get_compiler_info ${binfile}] {
  35     return -1
  36 }
  37
  38 gdb_exit
  39 gdb_start
  40 gdb_reinitialize_dir $srcdir/$subdir
  41 gdb_load ${binfile}
  42
  43 if ![runto_main] then {
  44    fail "Can't run to main"
  45    return 0
  46 }
  47
  48 set bp_miss_step_1 [gdb_get_line_number "miss_step_1"]
  49 set bp_miss_step_2 [gdb_get_line_number "miss_step_2"]
  50
  51 set bp_start_test_1 [gdb_get_line_number "patt1"]
  52 set bp_start_test_2 [gdb_get_line_number "patt2"]
  53 set bp_start_test_3 [gdb_get_line_number "patt3"]
  54
  55 #
  56 # Pattern 1 - simple longjmp.
  57 #
  58
  59 delete_breakpoints
  60
  61 gdb_test "break $bp_start_test_1" \
  62     "Breakpoint.*at.* file .*$srcfile, line.*$bp_start_test_1.*" \
  63     "breakpoint at pattern 1 start"
  64 gdb_test "continue" "patt1.*" "continue to breakpoint at pattern 1 start"
  65
  66 # set safe-net break
  67 gdb_test "break $bp_miss_step_1" \
  68     "Breakpoint.*at.* file .*$srcfile, line.*$bp_miss_step_1.*" \
  69     "breakpoint at miss_step_1"
  70
  71 gdb_test "next" "longjmps\\+\\+;.*" "next over setjmp (1)"
  72 gdb_test "next" "longjmp \\(env, 1\\);.*" "next to longjmp (1)"
  73
  74 set msg "next over longjmp(1)"
  75 gdb_test_multiple "next" $msg {
  76     -re ".*patt1.*$gdb_prompt $" {
  77         pass $msg
  78         gdb_test "next" "resumes\\+\\+.*" "next into else block (1)"
  79         gdb_test "next" "miss_step_1.*" "next into safety net (1)"
  80     }
  81     -re "miss_step_1.*$gdb_prompt $" {
  82         fail $msg
  83     }
  84 }
  85
  86 #
  87 # Pattern 2 - longjmp from an inner function.
  88 #
  89
  90 delete_breakpoints
  91
  92 gdb_test "break $bp_start_test_2" \
  93     "Breakpoint.*at.* file .*$srcfile, line.*$bp_start_test_2.*" \
  94     "breakpoint at pattern 2 start"
  95 gdb_test "continue" "patt2.*" "continue to breakpoint at pattern 2 start"
  96
  97 # set safe-net break
  98 gdb_test "break $bp_miss_step_2" \
  99     "Breakpoint.*at.* file .*$srcfile, line.*$bp_miss_step_2.*" \
 100     "breakpoint at miss_step_2"
 101
 102 gdb_test "next" "call_longjmp.*" "next over setjmp (2)"
 103
 104 set msg "next over call_longjmp (2)"
 105 gdb_test_multiple "next" $msg {
 106     -re ".*patt2.*$gdb_prompt $" {
 107         pass $msg
 108
 109         gdb_test "next" "resumes\\+\\+.*" "next into else block (2)"
 110         gdb_test "next" "miss_step_2.*" "next into safety net (2)"
 111     }
 112     -re "miss_step_2.*$gdb_prompt $" {
 113         fail $msg
 114     }
 115 }
 116
 117 #
 118 # Pattern 3 - setjmp/longjmp inside stepped-over function.
 119 #
 120
 121 delete_breakpoints
 122
 123 gdb_test "break $bp_start_test_3" \
 124     "Breakpoint.*at.* file .*$srcfile, line.*$bp_start_test_3.*" \
 125     "breakpoint at pattern 3 start"
 126 gdb_test "continue" "patt3.*" "continue to breakpoint at pattern 3 start"
 127
 128 gdb_test "next" "longjmp caught.*" "next over patt3"