9404b58f46
gdb/Changelog:
* aarch64-tdep.c (aarch64_software_single_step): New function.
(aarch64_gdbarch_init): Handle single stepping of atomic sequences
with aarch64_software_single_step.
gdb/testsuite/ChangeLog:
* gdb.arch/aarch64-atomic-inst.c: New file.
* gdb.arch/aarch64-atomic-inst.exp: New file.
48 lines
1.6 KiB
Text
48 lines
1.6 KiB
Text
# Copyright 2008-2014 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, write to the Free Software
|
|
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
#
|
|
# This file is part of the gdb testsuite.
|
|
|
|
# Test single stepping through atomic sequences beginning with
|
|
# a ldxr instruction and ending with a stxr instruction.
|
|
|
|
if {![istarget "aarch64*"]} {
|
|
verbose "Skipping ${gdb_test_file_name}."
|
|
return
|
|
}
|
|
|
|
standard_testfile
|
|
if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile}] } {
|
|
return -1
|
|
}
|
|
|
|
if ![runto_main] {
|
|
untested "could not run to main"
|
|
return -1
|
|
}
|
|
|
|
gdb_breakpoint "[gdb_get_line_number "ldxr"]" \
|
|
"Breakpoint $decimal at $hex" \
|
|
"Set the breakpoint at the start of the sequence"
|
|
|
|
gdb_test "continue" "Continuing.*Breakpoint $decimal.*" \
|
|
"Continue until breakpoint"
|
|
|
|
gdb_test "next" ".*__asm __volatile.*" \
|
|
"Step through the ldxr/stxr sequence"
|
|
|
|
gdb_test "next" ".*return dword.*" \
|
|
"Stepped through sequence through conditional branch"
|