projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 88b9d363 | 1 | # Copyright 2020-2022 Free Software Foundation, Inc. |
| 962effa7 SM |
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 | # Test to reproduce the crash described in PR 26813. | |
| 17 | # | |
| 18 | # When reading a list in any table in the .debug_rnglists section, GDB would | |
| 19 | # read the header at offset 0 in the section (the header of the first table). | |
| 20 | # When the index of the list we read was greater than the number of lists of | |
| 21 | # the first table, GDB would erroneously report that the index is invalid. | |
| 22 | # | |
| 23 | # So this test creates a .debug_rnglists section with two tables. The second | |
| 24 | # table has more lists than the first one and we try to read a high index in | |
| 25 | # the second table. | |
| 26 | ||
| 27 | load_lib dwarf.exp | |
| 28 | ||
| 29 | if {![dwarf2_support]} { | |
| 30 | return 0 | |
| 31 | } | |
| 32 | ||
| 33 | # Test with 32-bit and 64-bit DWARF. | |
| 34 | foreach_with_prefix is_64 {false true} { | |
| 35 | if { $is_64 } { | |
| 36 | standard_testfile main.c -dw64.S | |
| 37 | set testfile ${testfile}-dw64 | |
| 38 | } else { | |
| 39 | standard_testfile main.c -dw32.S | |
| 40 | set testfile ${testfile}-dw32 | |
| 41 | } | |
| 42 | ||
| 43 | set asm_file [standard_output_file $srcfile2] | |
| 44 | Dwarf::assemble $asm_file { | |
| 45 | global is_64 | |
| 46 | ||
| 47 | # The CU uses the DW_FORM_rnglistx form to refer to the .debug_rnglists | |
| 48 | # section. | |
| 49 | cu { | |
| 50 | version 5 | |
| 51 | is_64 $is_64 | |
| 52 | } { | |
| 53 | DW_TAG_compile_unit { | |
| 54 | {DW_AT_ranges 1 DW_FORM_rnglistx} | |
| 55 | {DW_AT_rnglists_base cu_table DW_FORM_sec_offset} | |
| 56 | } { | |
| 57 | # This tests a DW_AT_ranges attribute of form DW_FORM_rnglistx on a | |
| 58 | # function, which was buggy at some point. | |
| 59 | DW_TAG_subprogram { | |
| 60 | {DW_AT_name "foo"} | |
| 61 | {DW_AT_ranges 2 DW_FORM_rnglistx} | |
| 62 | } | |
| 63 | } | |
| 64 | } | |
| 65 | ||
| 66 | rnglists -is-64 $is_64 { | |
| 67 | # This table is unused, but exists so that the used table is not at | |
| 68 | # the beginning of the section. | |
| 69 | table { | |
| 70 | list_ { | |
| 71 | start_end 0x1000 0x2000 | |
| 72 | } | |
| 73 | } | |
| 74 | ||
| 75 | # The lists in this table are accessed by index (DW_FORM_rnglistx). | |
| 76 | table -post-header-label cu_table { | |
| 77 | # This list is unused, but exists to offset the next ones. | |
| 78 | list_ { | |
| 79 | start_end 0x2000 0x3000 | |
| 80 | } | |
| 81 | ||
| 82 | # For the CU. | |
| 83 | list_ { | |
| 84 | start_end 0x3000 0x4000 | |
| 85 | } | |
| 86 | ||
| 87 | # For function foo. | |
| 88 | list_ { | |
| 89 | start_end 0x3000 0x3010 | |
| 90 | } | |
| 91 | } | |
| 92 | } | |
| 93 | } | |
| 94 | ||
| 95 | if { [prepare_for_testing "failed to prepare" ${testfile} \ | |
| 96 | [list $srcfile $asm_file] {nodebug}] } { | |
| 97 | return -1 | |
| 98 | } | |
| 99 | ||
| 100 | # Sanity checks to make sure GDB slurped the symbols correctly. | |
| 101 | gdb_test "p/x &foo" " = 0x3000" | |
| 102 | } |