1# Copyright 2010-2013 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/>.
15load_lib dwarf.exp
16# Test some DWARF piece operators.
17
18# This test can only be run on targets which support DWARF-2 and use gas.
19if {![dwarf2_support]} {
20    return 0
21}
22# This test can only be run on x86 targets.
23if {![is_x86_like_target]} {
24    return 0
25}
26
27standard_testfile .S
28set csrcfile ${testfile}.c
29
30if {[prepare_for_testing ${testfile}.exp ${testfile} $srcfile]} {
31    return -1
32}
33
34if ![runto_main] {
35    return -1
36}
37
38# Function f1 tests a particular gdb bug involving DW_OP_piece.
39proc pieces_test_f1 {} {
40    global csrcfile
41    set line [gdb_get_line_number "f1 breakpoint" $csrcfile]
42    gdb_test "break pieces.c:$line" "Breakpoint 2.*" \
43	"set f1 breakpoint for pieces"
44    gdb_continue_to_breakpoint "continue to f1 breakpoint for pieces"
45    gdb_test "print a" " = {i = 4, j = 14}" "print a in pieces:f1"
46    gdb_test "print a.j" " = 14" "print a.j in pieces:f1"
47}
48
49# Function f2 tests for a bug when indexing into an array created
50# using DW_OP_piece.
51proc pieces_test_f2 {} {
52    global csrcfile
53    set line [gdb_get_line_number "f2 breakpoint" $csrcfile]
54    gdb_test "break pieces.c:$line" "Breakpoint 3.*" \
55       "set f2 breakpoint for pieces"
56    gdb_continue_to_breakpoint "continue to f2 breakpoint for pieces"
57    gdb_test "print a" " = .4, 14." "print a in pieces:f2"
58    gdb_test "print a\[0\]" " = 4" "print a\[0\] in pieces:f2"
59    gdb_test "print a\[1\]" " = 14" "print a\[1\] in pieces:f2"
60}
61
62# Function f3 tests DW_OP_bit_piece.
63proc pieces_test_f3 {} {
64    global csrcfile
65    set line [gdb_get_line_number "f3 breakpoint" $csrcfile]
66    gdb_test "break pieces.c:$line" "Breakpoint 4.*" \
67       "set f3 breakpoint for pieces"
68    gdb_continue_to_breakpoint "continue to f3 breakpoint for pieces"
69    gdb_test "print a.i" " = 4" "print a.i in pieces:f3"
70    gdb_test "print a.j" " = 14" "print a.j in pieces:f3"
71    gdb_test "print a.i = 7" " = 7" "set a.i in pieces:f3"
72    gdb_test "print a.i" " = 7" "print new a.i in pieces:f3"
73}
74
75# Function f6 tests for an empty DW_OP_piece.
76proc pieces_test_f6 {} {
77    global csrcfile
78    set line [gdb_get_line_number "f6 breakpoint" $csrcfile]
79    gdb_test "break pieces.c:$line" "Breakpoint 5.*" \
80       "set f6 breakpoint for pieces"
81    gdb_continue_to_breakpoint "continue to f6 breakpoint for pieces"
82    gdb_test "print a" \
83	" = {i = 7, j = 8, q = .optimized out.}" \
84	"print a with optimized out piece"
85    # Note: no warning for this case.
86    gdb_test_multiple "print a.i" \
87	"print a.i with optimized out piece" {
88	    -re "warning: some bits in computed object" {
89		fail "print a.i with optimized out piece"
90	    }
91	    -re " = 7" {
92		pass "print a.i with optimized out piece"
93	    }
94	}
95}
96
97pieces_test_f1
98pieces_test_f2
99pieces_test_f3
100pieces_test_f6
101