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b811d2c2 | 1 | # Copyright 2017-2020 Free Software Foundation, Inc. |
eccab96d JB |
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 | # This test can only be run on targets which support DWARF-2 and use gas. | |
18 | if {![dwarf2_support]} { | |
19 | return 0 | |
20 | } | |
21 | ||
22 | standard_testfile ada-valprint-error.c ada-valprint-error-dw.S | |
23 | ||
24 | # We need to know the size of integer and address types in order | |
25 | # to write some of the debugging info we'd like to generate. | |
26 | # | |
27 | # For that, we ask GDB by debugging our ada-valprint-error.c program. | |
28 | # Any program would do, but since we already have ada-valprint-error.c | |
29 | # specifically for this testcase, might as well use that. | |
30 | ||
31 | if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile}] } { | |
32 | untested ${testfile}.exp | |
33 | return -1 | |
34 | } | |
35 | ||
36 | # Make some DWARF for the test. | |
37 | set asm_file [standard_output_file $srcfile2] | |
38 | Dwarf::assemble $asm_file { | |
39 | cu {} { | |
40 | DW_TAG_compile_unit { | |
41 | {DW_AT_language @DW_LANG_Ada95} | |
42 | {DW_AT_name fd.adb} | |
43 | {DW_AT_comp_dir /tmp} | |
44 | } { | |
45 | declare_labels array_elt_label integer_label array_label \ | |
46 | typedef_label ref_type_label | |
47 | set ptr_size [get_sizeof "void *" 96] | |
48 | set int_size [get_sizeof "int" 4] | |
49 | ||
50 | # A structure with no size attribute, to mimick structures | |
51 | # in Ada that have a dynamic size... | |
52 | array_elt_label: structure_type { | |
53 | {name fd__Tints_doubledC} | |
54 | {artificial 1 DW_FORM_flag_present} | |
55 | } | |
56 | ||
57 | # ... and a corresponding XVZ variable, supposed to be there | |
58 | # to provide the actual size. Except that, in this case, | |
59 | # the variable has no address, to simulate the fact that | |
60 | # it has been optimized out (which the compiler can do, | |
61 | # even if it at the expense of debuggability). | |
62 | DW_TAG_variable { | |
63 | {name fd__Tints_doubledC___XVZ} | |
64 | {DW_AT_type :$integer_label} | |
65 | {artificial 1 DW_FORM_flag_present} | |
66 | } | |
67 | ||
68 | integer_label: DW_TAG_base_type { | |
69 | {DW_AT_byte_size $int_size DW_FORM_sdata} | |
70 | {DW_AT_encoding @DW_ATE_signed} | |
71 | {DW_AT_name integer} | |
72 | } | |
73 | ||
74 | array_label: DW_TAG_array_type { | |
75 | {DW_AT_name fd__ints_doubled} | |
76 | {DW_AT_type :$array_elt_label} | |
77 | } { | |
78 | DW_TAG_subrange_type { | |
79 | {DW_AT_type :$integer_label} | |
80 | {DW_AT_upper_bound 2 DW_FORM_data1} | |
81 | } | |
82 | } | |
83 | ||
84 | typedef_label: DW_TAG_typedef { | |
85 | {DW_AT_name fd__ints_doubled} | |
86 | {DW_AT_type :$array_label} | |
87 | } | |
88 | ||
89 | ref_type_label: DW_TAG_reference_type { | |
90 | {DW_AT_byte_size $ptr_size DW_FORM_sdata} | |
91 | {DW_AT_type :$typedef_label} | |
92 | } | |
93 | ||
94 | DW_TAG_variable { | |
95 | {name fd__global} | |
96 | {DW_AT_type :$ref_type_label} | |
97 | {DW_AT_location { | |
98 | DW_OP_addr [gdb_target_symbol fd__global] | |
99 | } SPECIAL_expr} | |
100 | {external 1 flag} | |
101 | } | |
102 | ||
103 | } | |
104 | } | |
105 | } | |
106 | ||
107 | if { [prepare_for_testing ${testfile}.exp ${testfile} \ | |
108 | [list $srcfile $asm_file] {nodebug}] } { | |
109 | return -1 | |
110 | } | |
111 | ||
112 | gdb_test_no_output "set language ada" | |
113 | ||
114 | gdb_test "print fd.global" \ | |
115 | " = <error reading variable: unable to read value of fd__Tints_doubledC___XVZ \\(value has been optimized out\\)>" |