68 lines
2.2 KiB
Text
68 lines
2.2 KiB
Text
# Copyright 2014-2015 Free Software Foundation, Inc.
|
|
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
# Test that dcache behaves correctly when reading a cache line fails.
|
|
|
|
standard_testfile
|
|
|
|
if { [prepare_for_testing "failed to prepare" ${testfile}] } {
|
|
return -1
|
|
}
|
|
|
|
if ![runto breakpt] {
|
|
return -1
|
|
}
|
|
|
|
# Issue the "delete mem" command. This makes GDB ignore the
|
|
# target-provided list, if any.
|
|
|
|
proc delete_mem {} {
|
|
global gdb_prompt
|
|
|
|
set test "delete mem"
|
|
gdb_test_multiple $test $test {
|
|
-re "Delete all memory regions.*y or n.*$" {
|
|
send_gdb "y\n"
|
|
exp_continue
|
|
}
|
|
-re "$gdb_prompt $" {
|
|
pass $test
|
|
}
|
|
}
|
|
}
|
|
|
|
# Make the dcache line size bigger than the pagesize.
|
|
set pagesize [get_integer_valueof "pg_size" -1]
|
|
set linesize [expr $pagesize * 2]
|
|
|
|
gdb_test_no_output "set dcache line-size $linesize" \
|
|
"set dcache line size to twice the pagesize"
|
|
|
|
gdb_test "info dcache" \
|
|
"Dcache 4096 lines of $linesize bytes each.\r\nNo data cache available."
|
|
|
|
# Make sure dcache doesn't automatically skip unmapped regions.
|
|
delete_mem
|
|
|
|
gdb_test "info mem" \
|
|
"Using user-defined memory regions.\r\nThere are no memory regions defined\."
|
|
|
|
# Given the line size is bigger than the page size, we have
|
|
# alternating mapped and unmapped pages, these make dcache fail to
|
|
# fill in the cache line. GDB used to have a bug where that failure
|
|
# would end up as user-visible error. The range being disassembled is
|
|
# wholly available, so GDB should succeed.
|
|
gdb_test "disassemble first_mapped_page, +10" "End of assembler dump\."
|
|
gdb_test "disassemble last_mapped_page, +10" "End of assembler dump\."
|