[deliverable/binutils-gdb.git] / gdb / testsuite / gdb.base / pc-fp.exp

#   Copyright 2002, 2004, 2007 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/>.

# Please email any bugs, comments, and/or additions to this file to:
# bug-gdb@prep.ai.mit.edu

# The doco makes reference to built-in registers -- $pc and $fp.  If
# the ISA contains registers by that name then they should be
# displayed.  If the ISA contains registers identified as being
# equivalent, but have different names, then GDB will provide these as
# aliases.  If the ISA doesn't provide any equivalent registers, then
# GDB will provide registers that map onto the frame's PC and FP.

if $tracelevel then {
    strace $tracelevel
}

#
# test running programs
#
set prms_id 0
set bug_id 0

set testfile "pc-fp"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } {
    untested pc-fp.exp
    return -1
}

if [get_compiler_info ${binfile}] {
    return -1
}

gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}

if ![runto_main] then {
    perror "couldn't run to breakpoint"
    continue
}

proc get_valueofx { fmt exp default } {
    global gdb_prompt
    send_gdb "print${fmt} ${exp}\n"
    gdb_expect {
	-re "\\$\[0-9\]* = (0x\[0-9a-zA-Z\]+).*$gdb_prompt $" {
	    set val $expect_out(1,string)
	    pass "get value of ${exp}"
	}
	timeout {
	    set val ${default}
	    fail "get value of ${exp} (timeout)"
	}
    }
    return ${val}
}

# Get the value of PC and FP

set valueof_pc [get_valueofx "/x" "\$pc" "0"]
set valueof_fp [get_valueofx "/x" "\$fp" "0"]

# Check that the sequence $REGNAME -> REGNUM -> $REGNAME works.  Use
# display since that encodes and then decodes the expression parameter
# (and hence uses the mechanisms we're trying to test).

gdb_test "display/i \$pc" "1: x/i +\\\$pc( +|\r\n)${valueof_pc}.*"
gdb_test "display/w \$fp" "2: x/xw +\\\$fp +${valueof_fp}.*"

# FIXME: cagney/2002-09-04: Should also check that ``info registers
# $pc'' et.al.'' come back with the same value as the above displays
# and a print --- assuming that is that people agree to such behavour.
# Need to re-write default_print_registers_info() for it to work (and
# such a rewrite is on the reggroups branch).

# gdb_test "info registers \$pc" "${valueof_pc}"
# gdb_test "info registers \$fp" "${valueof_fp}"
Commit	Line	Data
6aba47ca	1	# Copyright 2002, 2004, 2007 Free Software Foundation, Inc.
e36180d7 AC	2
	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
e22f8b7c	5	# the Free Software Foundation; either version 3 of the License, or
e36180d7	6	# (at your option) any later version.
e22f8b7c	7	#
e36180d7 AC	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.
e22f8b7c	12	#
e36180d7	13	# You should have received a copy of the GNU General Public License
e22f8b7c	14	# along with this program. If not, see <http://www.gnu.org/licenses/>.
e36180d7 AC	15
	16	# Please email any bugs, comments, and/or additions to this file to:
	17	# bug-gdb@prep.ai.mit.edu
	18
	19	# The doco makes reference to built-in registers -- $pc and $fp. If
	20	# the ISA contains registers by that name then they should be
	21	# displayed. If the ISA contains registers identified as being
	22	# equivalent, but have different names, then GDB will provide these as
	23	# aliases. If the ISA doesn't provide any equivalent registers, then
	24	# GDB will provide registers that map onto the frame's PC and FP.
	25
	26	if $tracelevel then {
	27	strace $tracelevel
	28	}
	29
	30	#
	31	# test running programs
	32	#
	33	set prms_id 0
	34	set bug_id 0
	35
	36	set testfile "pc-fp"
	37	set srcfile ${testfile}.c
	38	set binfile ${objdir}/${subdir}/${testfile}
	39
fc91c6c2	40	if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } {
b60f0898 JB	41	untested pc-fp.exp
b60f0898 JB	42	return -1
e36180d7 AC	43	}
	44
	45	if [get_compiler_info ${binfile}] {
	46	return -1
	47	}
	48
	49	gdb_exit
	50	gdb_start
	51	gdb_reinitialize_dir $srcdir/$subdir
	52	gdb_load ${binfile}
	53
	54	if ![runto_main] then {
	55	perror "couldn't run to breakpoint"
	56	continue
	57	}
	58
	59	proc get_valueofx { fmt exp default } {
	60	global gdb_prompt
	61	send_gdb "print${fmt} ${exp}\n"
	62	gdb_expect {
	63	-re "\\$\[0-9\]* = (0x\[0-9a-zA-Z\]+).*$gdb_prompt $" {
	64	set val $expect_out(1,string)
a8b7528f	65	pass "get value of ${exp}"
e36180d7 AC	66	}
e36180d7 AC	67	timeout {
4bebc3aa	68	set val ${default}
e36180d7 AC	69	fail "get value of ${exp} (timeout)"
	70	}
	71	}
	72	return ${val}
	73	}
	74
	75	# Get the value of PC and FP
	76
	77	set valueof_pc [get_valueofx "/x" "\$pc" "0"]
	78	set valueof_fp [get_valueofx "/x" "\$fp" "0"]
	79
	80	# Check that the sequence $REGNAME -> REGNUM -> $REGNAME works. Use
	81	# display since that encodes and then decodes the expression parameter
	82	# (and hence uses the mechanisms we're trying to test).
	83
6a2eb474	84	gdb_test "display/i \$pc" "1: x/i +\\\$pc( +\|\r\n)${valueof_pc}.*"
e36180d7 AC	85	gdb_test "display/w \$fp" "2: x/xw +\\\$fp +${valueof_fp}.*"
	86
	87	# FIXME: cagney/2002-09-04: Should also check that ``info registers
	88	# $pc'' et.al.'' come back with the same value as the above displays
	89	# and a print --- assuming that is that people agree to such behavour.
	90	# Need to re-write default_print_registers_info() for it to work (and
	91	# such a rewrite is on the reggroups branch).
	92
	93	# gdb_test "info registers \$pc" "${valueof_pc}"
	94	# gdb_test "info registers \$fp" "${valueof_fp}"