# Copyright 2008, 2009, 2010 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 test can only be run on targets which support DWARF-2 and use gas.
# For now pick a sampling of likely targets.
if {![istarget *-*-linux*]
    && ![istarget *-*-gnu*]
    && ![istarget *-*-elf*]
    && ![istarget *-*-openbsd*]
    && ![istarget arm-*-eabi*]
    && ![istarget powerpc-*-eabi*]} {
    return 0  
}

set testfile "dw2-ref-missing-frame"
set sources [list ${testfile}-main.c ${testfile}.S]

# First try referencing DW_AT_frame_base which is not defined.
set executable_nofb ${testfile}-nofb
if { [prepare_for_testing ${testfile}.exp $executable_nofb $sources {nodebug additional_flags=-DNO_FRAME_BASE}] } {
    return -1
}

if [runto_main] {
    gdb_test "p main_var" {Could not find the frame base for "main".}
}

# And now try referencing DW_AT_frame_base defined using a self-reference
# (DW_OP_fbreg).
set executable_fb ${testfile}-fb
if { [prepare_for_testing ${testfile}.exp $executable_fb $sources {nodebug}] } {
    return -1
}

if [runto_main] {
    gdb_test "p main_var" "DWARF-2 expression error: Loop detected .*"
}