projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 88b9d363 | 1 | # Copyright 2014-2022 Free Software Foundation, Inc. |
| 0256a6ac PA |
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 that dcache behaves correctly when reading a cache line fails. | |
| 17 | ||
| 18 | standard_testfile | |
| 19 | ||
| 20 | if { [prepare_for_testing "failed to prepare" ${testfile}] } { | |
| 21 | return -1 | |
| 22 | } | |
| 23 | ||
| 24 | if ![runto breakpt] { | |
| 25 | return -1 | |
| 26 | } | |
| 27 | ||
| 28 | # Issue the "delete mem" command. This makes GDB ignore the | |
| 29 | # target-provided list, if any. | |
| 30 | ||
| 31 | proc delete_mem {} { | |
| 32 | global gdb_prompt | |
| 33 | ||
| 34 | set test "delete mem" | |
| 35 | gdb_test_multiple $test $test { | |
| 36 | -re "Delete all memory regions.*y or n.*$" { | |
| 37 | send_gdb "y\n" | |
| 38 | exp_continue | |
| 39 | } | |
| 40 | -re "$gdb_prompt $" { | |
| 41 | pass $test | |
| 42 | } | |
| 43 | } | |
| 44 | } | |
| 45 | ||
| 46 | # Make the dcache line size bigger than the pagesize. | |
| 47 | set pagesize [get_integer_valueof "pg_size" -1] | |
| 48 | set linesize [expr $pagesize * 2] | |
| 49 | ||
| 50 | gdb_test_no_output "set dcache line-size $linesize" \ | |
| 51 | "set dcache line size to twice the pagesize" | |
| 52 | ||
| 53 | gdb_test "info dcache" \ | |
| 54 | "Dcache 4096 lines of $linesize bytes each.\r\nNo data cache available." | |
| 55 | ||
| 56 | # Make sure dcache doesn't automatically skip unmapped regions. | |
| 57 | delete_mem | |
| 58 | ||
| 59 | gdb_test "info mem" \ | |
| 60 | "Using user-defined memory regions.\r\nThere are no memory regions defined\." | |
| 61 | ||
| 62 | # Given the line size is bigger than the page size, we have | |
| 63 | # alternating mapped and unmapped pages, these make dcache fail to | |
| 64 | # fill in the cache line. GDB used to have a bug where that failure | |
| 65 | # would end up as user-visible error. The range being disassembled is | |
| 66 | # wholly available, so GDB should succeed. | |
| 67 | gdb_test "disassemble first_mapped_page, +10" "End of assembler dump\." | |
| 68 | gdb_test "disassemble last_mapped_page, +10" "End of assembler dump\." |