72 lines
2.2 KiB
Plaintext
72 lines
2.2 KiB
Plaintext
# Copyright 2008-2017 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/>.
|
|
#
|
|
# This file is part of the gdb testsuite.
|
|
|
|
# Test single stepping through atomic sequences beginning with
|
|
# a lwarx/ldarx instruction and ending with a stwcx/stdcx
|
|
# instruction.
|
|
|
|
|
|
if {![istarget "powerpc*"] || ![is_lp64_target]} {
|
|
verbose "Skipping testing of powerpc64 single stepping over atomic sequences."
|
|
return
|
|
}
|
|
|
|
standard_testfile .S
|
|
|
|
if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} {debug quiet}] } {
|
|
return -1
|
|
}
|
|
|
|
# The test proper. DISPLACED is true if we should try with displaced
|
|
# stepping.
|
|
proc do_test { displaced } {
|
|
global decimal hex
|
|
|
|
if ![runto_main] then {
|
|
untested "could not run to main"
|
|
return -1
|
|
}
|
|
|
|
gdb_test_no_output "set displaced-stepping $displaced"
|
|
|
|
set bp1 [gdb_get_line_number "lwarx"]
|
|
gdb_breakpoint "$bp1" "Breakpoint $decimal at $hex" \
|
|
"set the breakpoint at the start of the lwarx/stwcx sequence"
|
|
|
|
set bp2 [gdb_get_line_number "ldarx"]
|
|
gdb_breakpoint "$bp2" "Breakpoint $decimal at $hex" \
|
|
"set the breakpoint at the start of the ldarx/stdcx sequence"
|
|
|
|
gdb_test continue "Continuing.*Breakpoint $decimal.*" \
|
|
"continue until lwarx/stwcx start breakpoint"
|
|
|
|
gdb_test nexti "bne.*1b" \
|
|
"step through the lwarx/stwcx sequence"
|
|
|
|
gdb_test continue "Continuing.*Breakpoint $decimal.*" \
|
|
"continue until ldarx/stdcx start breakpoint"
|
|
|
|
gdb_test nexti "bne.*1b" \
|
|
"step through the ldarx/stdcx sequence"
|
|
}
|
|
|
|
foreach displaced { "off" "on" } {
|
|
with_test_prefix "displaced=$displaced" {
|
|
do_test $displaced
|
|
}
|
|
}
|