projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 88b9d363 | 1 | # Copyright 2018-2022 Free Software Foundation, Inc. |
| 35ee2dc2 AB |
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 | # This tests some non-standard DWARF that we still expect GDB to be | |
| 17 | # able to handle. | |
| 18 | # | |
| 19 | # The DWARF standard (v5 5.1) says this: | |
| 20 | # | |
| 21 | # A base type is represented by a debugging information entry with | |
| 22 | # the tag DW_TAG_base_type. | |
| 23 | # | |
| 24 | # A base type entry may have a DW_AT_name attribute whose value is | |
| 25 | # a null-terminated string containing the name of the base type as | |
| 26 | # recognized by the programming language of the compilation unit | |
| 27 | # containing the base type entry. | |
| 28 | # | |
| 29 | # So the DW_AT_name field for a DW_TAG_base_type is optional. This | |
| 30 | # test provides some basic checking that GDB doesn't crash when | |
| 31 | # presented with this situation. | |
| 32 | ||
| 33 | load_lib dwarf.exp | |
| 34 | ||
| 35 | # This test can only be run on targets which support DWARF-2 and use gas. | |
| 36 | if {![dwarf2_support]} { | |
| 37 | return 0 | |
| 38 | } | |
| 39 | ||
| 40 | standard_testfile void-type.c void-type.S | |
| 41 | ||
| 42 | # Make some DWARF for the test. | |
| 43 | set asm_file [standard_output_file $srcfile2] | |
| 44 | Dwarf::assemble $asm_file { | |
| 9476b583 TV |
45 | global srcfile |
| 46 | ||
| 35ee2dc2 AB |
47 | cu {} { |
| 48 | DW_TAG_compile_unit { | |
| 49 | {DW_AT_producer "GNU C 8.1"} | |
| 50 | {DW_AT_language @DW_LANG_C} | |
| 9476b583 | 51 | {DW_AT_name $srcfile} |
| 35ee2dc2 AB |
52 | {DW_AT_comp_dir /tmp} |
| 53 | } { | |
| 54 | declare_labels main_type int_type ptr_type | |
| 55 | ||
| 56 | main_type: DW_TAG_base_type { | |
| 57 | {DW_AT_byte_size 4 DW_FORM_sdata} | |
| 58 | {DW_AT_encoding @DW_ATE_signed} | |
| 59 | } | |
| 60 | ||
| 61 | int_type: DW_TAG_base_type { | |
| 62 | {DW_AT_byte_size 0 DW_FORM_sdata} | |
| 63 | {DW_AT_encoding @DW_ATE_signed} | |
| 64 | } | |
| 65 | ||
| 66 | ptr_type: DW_TAG_pointer_type { | |
| 67 | {DW_AT_type :$int_type} | |
| 68 | } | |
| 69 | ||
| 70 | DW_TAG_subprogram { | |
| 90c3ec2d | 71 | {MACRO_AT_func func} |
| 35ee2dc2 AB |
72 | {type :$int_type} |
| 73 | } | |
| 74 | DW_TAG_subprogram { | |
| 90c3ec2d | 75 | {MACRO_AT_func main} |
| 35ee2dc2 AB |
76 | {type :$main_type} |
| 77 | } | |
| 78 | ||
| 79 | DW_TAG_variable { | |
| 80 | {DW_AT_name "var_a"} | |
| 81 | {DW_AT_type :$main_type} | |
| 82 | {DW_AT_external 1 DW_FORM_flag} | |
| 83 | {DW_AT_location {DW_OP_addr [gdb_target_symbol "var_a"]} SPECIAL_expr} | |
| 84 | } | |
| 85 | ||
| 86 | DW_TAG_variable { | |
| 87 | {DW_AT_name "var_ptr"} | |
| 88 | {DW_AT_type :$ptr_type} | |
| 89 | {DW_AT_external 1 DW_FORM_flag} | |
| 90 | {DW_AT_location {DW_OP_addr [gdb_target_symbol "var_ptr"]} SPECIAL_expr} | |
| 91 | } | |
| 92 | } | |
| 93 | } | |
| 94 | } | |
| 95 | ||
| 96 | if { [prepare_for_testing "failed to prepare" ${testfile} \ | |
| 97 | [list $srcfile $asm_file] {nodebug}] } { | |
| 98 | return -1 | |
| 99 | } | |
| 100 | ||
| 101 | if ![runto_main] { | |
| 102 | return -1 | |
| 103 | } | |
| 104 | ||
| 105 | # Use 'ptype' on two variables that are using DW_TAG_base_type types | |
| 106 | # with missing DW_AT_name attributes. | |
| 107 | gdb_test "ptype var_ptr" "type = <invalid type code $decimal> \\*" \ | |
| 108 | "ptype of a pointer to a basic type with missing name" | |
| 109 | ||
| 110 | gdb_test "ptype var_a" "type = <invalid type code $decimal>" \ | |
| 111 | "ptype of a variable that is a basic type with a missing name" |