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# Copyright 2009-2021 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
# 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 <>.
load_lib dwarf.exp
# Test DW_OP_call_frame_cfa.
# This test can only be run on targets which support DWARF-2 and use gas.
if {![dwarf2_support]} {
return 0
# This test can only be run on x86 targets.
if {![is_x86_like_target]} {
return 0
standard_testfile .S
if {[prepare_for_testing "failed to prepare" $testfile $srcfile \
[list {additional_flags=-nostdlib}]]} {
return -1
if ![runto_main] {
return -1
gdb_test "break *func" "Breakpoint 2.*" "set breakpoint for call-frame-cfa"
gdb_continue_to_breakpoint "continue to breakpoint for call-frame-cfa"
gdb_test "display arg" "arg = 77" "set display for call-frame-cfa"
# We know how many instructions are in the function. Note that we
# can't handle the "ret" instruction due to the epilogue unwinder.
for {set i 1} {$i < 5} {incr i} {
gdb_test "si" "arg = 77" "step $i for call-frame-cfa"