1 # Copyright 2010-2015 Free Software Foundation, Inc.
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.
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.
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/>.
17 # Test DW_OP_GNU_implicit_pointer.
19 # This test can only be run on targets which support DWARF-2 and use gas.
20 if {![dwarf2_support]} {
25 set csrcfile ${testfile}.c
28 if [info exists COMPILE] {
29 # make check RUNTESTFLAGS='gdb.dwarf2/implptr.exp COMPILE=1 CC_FOR_TARGET=gcc\ -m32'
30 set srcfile ${csrcfile}
31 lappend opts debug optimize=-O2
32 } elseif {![is_x86_like_target]} {
33 # This test can only be run on x86 targets.
37 if {[prepare_for_testing ${testfile}.exp ${testfile} $srcfile $opts]} {
41 # Additional test to verify the referenced CU is not aged out.
42 gdb_test_no_output "maintenance set dwarf2 max-cache-age 0"
48 # Test various pointer depths in bar.
49 proc implptr_test_bar {} {
51 set line [gdb_get_line_number "bar breakpoint" $csrcfile]
52 gdb_test "break implptr.c:$line" "Breakpoint 2.*" \
53 "set bar breakpoint for implptr"
54 gdb_continue_to_breakpoint "continue to bar breakpoint for implptr"
55 gdb_test "print j" " = \\(intp\\) <synthetic pointer>" "print j in implptr:bar"
56 gdb_test {print sizeof (j[0])} " = 4" {print sizeof (j[0]) in implptr:bar}
57 gdb_test "print *j" " = 5" "print *j in implptr:bar"
58 gdb_test "print **k" " = 5" "print **k in implptr:bar"
59 gdb_test "print ***l" " = 5" "print ***l in implptr:bar"
62 # Test implicit pointer offset.
63 proc implptr_test_baz {} {
65 set line [gdb_get_line_number "baz breakpoint" $csrcfile]
66 gdb_test "break implptr.c:$line" "Breakpoint 3.*" \
67 "set baz breakpoint for implptr"
68 gdb_continue_to_breakpoint "continue to baz breakpoint for implptr"
69 gdb_test {p p[0].y} " = 92" "sanity check element 0"
70 gdb_test {p p[1].y} " = 46" "sanity check element 1"
71 gdb_test "step" "\r\nadd \\(.*" "enter the inlined function"
72 gdb_test "p a->y" " = 92" "check element 0 for the offset"
73 gdb_test "p b->y" " = 46" "check element 1 for the offset"
74 gdb_continue_to_breakpoint "ignore the second baz breakpoint"
77 # Test some values in foo.
78 proc implptr_test_foo {} {
80 set line [gdb_get_line_number "foo breakpoint" $csrcfile]
81 gdb_test "break implptr.c:$line" "Breakpoint 4.*" \
82 "set foo breakpoint for implptr"
83 gdb_continue_to_breakpoint "continue to foo breakpoint for implptr"
84 gdb_test "print p\[0].x" " = \\(int \\*\\) <synthetic pointer>" \
85 "print p\[0].x in implptr:foo"
86 gdb_test "print *p\[0].x" " = 69" \
87 "print *p\[0].x in implptr:foo"
88 gdb_test "print/d *(((char *) p\[0].x) + 1)" " = 0" \
89 "print byte inside *p\[0].x in implptr:foo"
90 gdb_test "print *(p\[0].x + 10)" \
91 "access outside bounds of object referenced via synthetic pointer" \
92 "print invalid offset from *p\[0].x in implptr:foo"
93 gdb_test "print j" " = 69" \
94 "print j in implptr:foo"