projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 88b9d363 | 1 | # Copyright 2020-2022 Free Software Foundation, Inc. |
| bd360d30 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 | # Some compilers give anonymous structures a linkage name, and that | |
| 17 | # linkage name doesn't demangle (within GDB calling gdb_demangle | |
| 18 | # return NULL). At one point this caused GDB to crash due to | |
| 19 | # dereferencing a NULL pointer. | |
| 20 | ||
| 21 | load_lib dwarf.exp | |
| 22 | ||
| 23 | # This test can only be run on targets which support DWARF-2 and use gas. | |
| 24 | if {![dwarf2_support]} { | |
| 25 | return 0 | |
| 26 | } | |
| 27 | ||
| d1c8a76d | 28 | standard_testfile .c -debug.S |
| bd360d30 AB |
29 | |
| 30 | # Set up the DWARF for the test. | |
| 31 | set asm_file [standard_output_file $srcfile2] | |
| 32 | Dwarf::assemble $asm_file { | |
| 9476b583 TV |
33 | global srcfile |
| 34 | ||
| bd360d30 AB |
35 | cu {} { |
| 36 | DW_TAG_compile_unit { | |
| 37 | {DW_AT_language @DW_LANG_C_plus_plus} | |
| 9476b583 | 38 | {DW_AT_name $srcfile} |
| bd360d30 AB |
39 | {DW_AT_comp_dir /tmp} |
| 40 | ||
| 41 | } { | |
| 42 | declare_labels a_l b_l | |
| 43 | ||
| 44 | a_l: DW_TAG_base_type { | |
| 45 | {DW_AT_byte_size 4 DW_FORM_sdata} | |
| 46 | {DW_AT_encoding @DW_ATE_signed} | |
| 47 | {DW_AT_name int} | |
| 48 | } | |
| 49 | ||
| 50 | # To expose the bug that existed at one point this | |
| 51 | # structure must have a linkage name, but no name, and the | |
| 52 | # linkage name is something that doesn't demangle. | |
| 53 | b_l: DW_TAG_structure_type { | |
| 54 | {DW_AT_byte_size 8 DW_FORM_sdata} | |
| 55 | {DW_AT_encoding @DW_ATE_signed} | |
| 56 | {DW_AT_linkage_name <anon>} | |
| 57 | } { | |
| 58 | member { | |
| 59 | {name x} | |
| 60 | {type :$a_l} | |
| 61 | {data_member_location 0 data1} | |
| 62 | } | |
| 63 | member { | |
| 64 | {name y} | |
| 65 | {type :$a_l} | |
| 66 | {data_member_location 0 data1} | |
| 67 | } | |
| 68 | } | |
| 69 | DW_TAG_subprogram { | |
| 90c3ec2d | 70 | {MACRO_AT_func {main}} |
| bd360d30 AB |
71 | {type :$a_l} |
| 72 | } | |
| 73 | DW_TAG_variable { | |
| 74 | {type :$b_l} | |
| 75 | {external 1 flag} | |
| 76 | {DW_AT_name global_var} | |
| 77 | {DW_AT_location { | |
| 78 | DW_OP_addr [gdb_target_symbol global_var] | |
| 79 | } SPECIAL_expr} | |
| 80 | } | |
| 81 | } | |
| 82 | } | |
| 83 | } | |
| 84 | ||
| 85 | if { [prepare_for_testing "failed to prepare" ${testfile} \ | |
| 86 | [list $srcfile $asm_file] {nodebug}] } { | |
| 87 | return -1 | |
| 88 | } | |
| 89 | ||
| 90 | gdb_assert [runto_main] "run to main" | |
| 91 | gdb_test "p global_var" " = {x = 0, y = 0}" |