gdb/testsuite/gdb.dwarf2/implptr.exp

   1 # Copyright 2010, 2011 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 # Test DW_OP_GNU_implicit_pointer.
  17
  18 # This test can only be run on targets which support DWARF-2 and use gas.
  19 # For now pick a sampling of likely targets.
  20 if {![istarget *-*-linux*]
  21     && ![istarget *-*-gnu*]
  22     && ![istarget *-*-elf*]
  23     && ![istarget *-*-openbsd*]
  24     && ![istarget arm-*-eabi*]
  25     && ![istarget powerpc-*-eabi*]} {
  26     return 0
  27 }
  28 # This test can only be run on x86 targets.
  29 if {![istarget i?86-*]} {
  30     return 0
  31 }
  32
  33 set testfile "implptr"
  34 set srcfile ${testfile}.S
  35 set csrcfile ${testfile}.c
  36 set binfile ${objdir}/${subdir}/${testfile}.x
  37
  38 if {[prepare_for_testing ${testfile}.exp ${testfile}.x $srcfile]} {
  39     return -1
  40 }
  41
  42 if ![runto_main] {
  43     return -1
  44 }
  45
  46 # Test various pointer depths in bar.
  47 proc implptr_test_bar {} {
  48     global csrcfile
  49     set line [gdb_get_line_number "bar breakpoint" $csrcfile]
  50     gdb_test "break implptr.c:$line" "Breakpoint 2.*" \
  51        "set bar breakpoint for implptr"
  52     gdb_continue_to_breakpoint "continue to bar breakpoint for implptr"
  53     gdb_test "print j" " = .int .. <synthetic pointer>" "print j in implptr:bar"
  54     gdb_test "print *j" " = 5" "print *j in implptr:bar"
  55     gdb_test "print **k" " = 5" "print **k in implptr:bar"
  56     gdb_test "print ***l" " = 5" "print ***l in implptr:bar"
  57 }
  58
  59 # Test some values in foo.
  60 proc implptr_test_foo {} {
  61     global csrcfile
  62     set line [gdb_get_line_number "foo breakpoint" $csrcfile]
  63     gdb_test "break implptr.c:$line" "Breakpoint 3.*" \
  64         "set foo breakpoint for implptr"
  65     gdb_continue_to_breakpoint "continue to foo breakpoint for implptr"
  66     gdb_test "print p\[0].x" " = .int .. <synthetic pointer>" \
  67         "print p\[0].x in implptr:foo"
  68     gdb_test "print *p\[0].x" " = 69" \
  69         "print *p\[0].x in implptr:foo"
  70     gdb_test "print/d *(((char *) p\[0].x) + 1)" " = 0" \
  71         "print byte inside *p\[0].x in implptr:foo"
  72     gdb_test "print *(p\[0].x + 10)" \
  73         "access outside bounds of object referenced via synthetic pointer" \
  74         "print invalid offset from *p\[0].x in implptr:foo"
  75     gdb_test "print j" " = 69" \
  76         "print j in implptr:foo"
  77 }
  78
  79 implptr_test_bar
  80 implptr_test_foo