| # Copyright 2008-2012 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/>. |
| load_lib dwarf.exp |
| |
| # This test can only be run on targets which support DWARF-2 and use gas. |
| if {![dwarf2_support]} { |
| return 0 |
| } |
| |
| set testfile "dw2-ref-missing-frame" |
| set srcsfile ${testfile}.S |
| set objsfile ${objdir}/${subdir}/${testfile}.o |
| set srcfuncfile ${testfile}-func.c |
| set objfuncfile ${objdir}/${subdir}/${testfile}-func.o |
| set srcmainfile ${testfile}-main.c |
| set objmainfile ${objdir}/${subdir}/${testfile}-main.o |
| set executable ${testfile} |
| set binfile ${objdir}/${subdir}/${executable} |
| |
| if { [gdb_compile "${srcdir}/${subdir}/${srcsfile}" $objsfile object {}] != "" |
| || [gdb_compile "${srcdir}/${subdir}/${srcfuncfile}" $objfuncfile object {}] != "" |
| || [gdb_compile "${srcdir}/${subdir}/${srcmainfile}" $objmainfile object {debug}] != "" |
| || [gdb_compile "$objsfile $objfuncfile $objmainfile" $binfile executable {}] != "" } { |
| return -1 |
| } |
| |
| clean_restart $executable |
| |
| # First try referencing DW_AT_frame_base which is not defined. |
| if [runto func_nofb] { |
| gdb_test "p func_nofb_var" {Could not find the frame base for "func_nofb".} "func_nofb print" |
| gdb_test "bt full" " in main .* main_var = 1" "func_nofb backtrace" |
| } |
| |
| # GDB could have crashed. |
| clean_restart $executable |
| |
| # And now try referencing DW_AT_frame_base defined using a self-reference |
| # (DW_OP_fbreg). |
| if [runto func_loopfb] { |
| gdb_test "p func_loopfb_var" "DWARF-2 expression error: Loop detected .*" "func_loopfb print" |
| gdb_test "bt full" " in main .* main_var = 1" "func_loopfb backtrace" |
| } |