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 load_lib dwarf.exp
  16
  17 # Test DW_OP_GNU_implicit_pointer.
  18
  19 # This test can only be run on targets which support DWARF-2 and use gas.
  20 if {![dwarf2_support]} {
  21     return 0
  22 }
  23
  24 set testfile "implptr"
  25 set srcfile ${testfile}.S
  26 set csrcfile ${testfile}.c
  27 set binfile ${objdir}/${subdir}/${testfile}.x
  28 set opts {}
  29
  30 if [info exists COMPILE] {
  31     # make check RUNTESTFLAGS='gdb.dwarf2/implptr.exp COMPILE=1 CC_FOR_TARGET=gcc\ -m32'
  32     set srcfile ${csrcfile}
  33     lappend opts debug optimize=-O2
  34 } elseif {![is_x86_like_target]} {
  35     # This test can only be run on x86 targets.
  36     return 0
  37 }
  38
  39 if {[prepare_for_testing ${testfile}.exp ${testfile}.x $srcfile $opts]} {
  40     return -1
  41 }
  42
  43 # Additional test to verify the referenced CU is not aged out.
  44 gdb_test_no_output "maintenance set dwarf2 max-cache-age 0"
  45
  46 if ![runto_main] {
  47     return -1
  48 }
  49
  50 # Test various pointer depths in bar.
  51 proc implptr_test_bar {} {
  52     global csrcfile
  53     set line [gdb_get_line_number "bar breakpoint" $csrcfile]
  54     gdb_test "break implptr.c:$line" "Breakpoint 2.*" \
  55        "set bar breakpoint for implptr"
  56     gdb_continue_to_breakpoint "continue to bar breakpoint for implptr"
  57     gdb_test "print j" " = \\(intp\\) <synthetic pointer>" "print j in implptr:bar"
  58     gdb_test "print *j" " = 5" "print *j in implptr:bar"
  59     gdb_test "print **k" " = 5" "print **k in implptr:bar"
  60     gdb_test "print ***l" " = 5" "print ***l in implptr:bar"
  61 }
  62
  63 # Test implicit pointer offset.
  64 proc implptr_test_baz {} {
  65     global csrcfile
  66     set line [gdb_get_line_number "baz breakpoint" $csrcfile]
  67     gdb_test "break implptr.c:$line" "Breakpoint 3.*" \
  68         "set baz breakpoint for implptr"
  69     gdb_continue_to_breakpoint "continue to baz breakpoint for implptr"
  70     gdb_test {p p[0].y} " = 92" "sanity check element 0"
  71     gdb_test {p p[1].y} " = 46" "sanity check element 1"
  72     gdb_test "step" "\r\nadd \\(.*" "enter the inlined function"
  73     gdb_test "p a->y" " = 92" "check element 0 for the offset"
  74     gdb_test "p b->y" " = 46" "check element 1 for the offset"
  75     gdb_continue_to_breakpoint "ignore the second baz breakpoint"
  76 }
  77
  78 # Test some values in foo.
  79 proc implptr_test_foo {} {
  80     global csrcfile
  81     set line [gdb_get_line_number "foo breakpoint" $csrcfile]
  82     gdb_test "break implptr.c:$line" "Breakpoint 4.*" \
  83         "set foo breakpoint for implptr"
  84     gdb_continue_to_breakpoint "continue to foo breakpoint for implptr"
  85     gdb_test "print p\[0].x" " = \\(int \\*\\) <synthetic pointer>" \
  86         "print p\[0].x in implptr:foo"
  87     gdb_test "print *p\[0].x" " = 69" \
  88         "print *p\[0].x in implptr:foo"
  89     gdb_test "print/d *(((char *) p\[0].x) + 1)" " = 0" \
  90         "print byte inside *p\[0].x in implptr:foo"
  91     gdb_test "print *(p\[0].x + 10)" \
  92         "access outside bounds of object referenced via synthetic pointer" \
  93         "print invalid offset from *p\[0].x in implptr:foo"
  94     gdb_test "print j" " = 69" \
  95         "print j in implptr:foo"
  96 }
  97
  98 implptr_test_bar
  99 implptr_test_baz
 100 implptr_test_foo