1 # Copyright 2002, 2004 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 2 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program; if not, write to the Free Software
15 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 # Please email any bugs, comments, and/or additions to this file to:
18 # bug-gdb@prep.ai.mit.edu
20 # The doco makes reference to built-in registers -- $pc and $fp. If
21 # the ISA contains registers by that name then they should be
22 # displayed. If the ISA contains registers identified as being
23 # equivalent, but have different names, then GDB will provide these as
24 # aliases. If the ISA doesn't provide any equivalent registers, then
25 # GDB will provide registers that map onto the frame's PC and FP.
32 # test running programs
38 set srcfile ${testfile}.c
39 set binfile ${objdir}/${subdir}/${testfile}
41 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } {
42 gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
45 if [get_compiler_info ${binfile}] {
51 gdb_reinitialize_dir $srcdir/$subdir
54 if ![runto_main] then {
55 perror "couldn't run to breakpoint"
59 proc get_valueofx { fmt exp default } {
61 send_gdb "print${fmt} ${exp}\n"
63 -re "\\$\[0-9\]* = (0x\[0-9a-zA-Z\]+).*$gdb_prompt $" {
64 set val $expect_out(1,string)
65 pass "get value of ${exp}"
69 fail "get value of ${exp} (timeout)"
75 # Get the value of PC and FP
77 set valueof_pc [get_valueofx "/x" "\$pc" "0"]
78 set valueof_fp [get_valueofx "/x" "\$fp" "0"]
80 # Check that the sequence $REGNAME -> REGNUM -> $REGNAME works. Use
81 # display since that encodes and then decodes the expression parameter
82 # (and hence uses the mechanisms we're trying to test).
84 gdb_test "display/i \$pc" "1: x/i +\\\$pc +${valueof_pc}.*"
85 gdb_test "display/w \$fp" "2: x/xw +\\\$fp +${valueof_fp}.*"
87 # FIXME: cagney/2002-09-04: Should also check that ``info registers
88 # $pc'' et.al.'' come back with the same value as the above displays
89 # and a print --- assuming that is that people agree to such behavour.
90 # Need to re-write default_print_registers_info() for it to work (and
91 # such a rewrite is on the reggroups branch).
93 # gdb_test "info registers \$pc" "${valueof_pc}"
94 # gdb_test "info registers \$fp" "${valueof_fp}"