1 # Copyright 2003, 2004, 2007, 2008, 2009 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 3 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, see <http://www.gnu.org/licenses/>.
17 # Tests for Powerpc E500 register setting and fetching
24 # Test the use of registers, especially E500 registers, for Powerpc.
25 # This file uses e500-regs.c for input.
31 if ![istarget "powerpc-*eabispe"] then {
32 verbose "Skipping e500 register tests."
36 set testfile "e500-regs"
37 set binfile ${objdir}/${subdir}/${testfile}
38 set src1 ${srcdir}/${subdir}/${testfile}.c
40 if { [gdb_compile ${src1} ${binfile} executable {debug nowarnings}] != "" } {
41 untested e500-regs.exp
46 gdb_reinitialize_dir $srcdir/$subdir
50 # Run to `main' where we begin our tests.
53 if ![runto_main] then {
57 # set all the registers integer portions to 1
58 for {set i 0} {$i < 32} {incr i 1} {
59 for {set j 0} {$j < 2} {incr j 1} {
60 gdb_test "set \$ev$i.v2_int32\[$j\] = 1" "" "set reg ev$i.v4si.f\[$j\]"
64 # Now execute some target code, so that GDB's register cache is flushed.
66 #gdb_test "next" "" ""
68 send_gdb "show endian\n"
70 -re "(The target endianness is set automatically .currently )(big|little)( endian.*)$gdb_prompt $" {
72 set endianness $expect_out(2,string)
74 -re ".*$gdb_prompt $" {
75 fail "couldn't get endianness"
77 timeout { fail "(timeout) endianness" }
80 # And then read the E500 registers back, to see that
81 # a) the register write above worked, and
82 # b) the register read (below) also works.
84 if {$endianness == "big"} {
85 set vector_register ".uint64 = 0x100000001, v2_float = .0x0, 0x0., v2_int32 = .0x1, 0x1., v4_int16 = .0x0, 0x1, 0x0, 0x1., v8_int8 = .0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1.."
87 set vector_register ".uint64 = 0x100000001, v2_float = .0x0, 0x0., v2_int32 = .0x1, 0x1., v4_int16 = .0x1, 0x0, 0x1, 0x0., v8_int8 = .0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0.."
90 for {set i 0} {$i < 32} {incr i 1} {
91 gdb_test "info reg ev$i" "ev$i.*$vector_register" "info reg ev$i"
94 # Test wether the GPRs are updated accordingly. (GPRs are just the lower
95 # 32 bits of the EV registers.)
97 set general_register "0x1\[ \t\]+1"
99 for {set i 0} {$i < 32} {incr i 1} {
100 gdb_test "info reg r$i" "r$i.*$general_register" "info reg r$i"
103 # Now redo the same tests, but using the print command.
105 if {$endianness == "big"} {
106 set decimal_vector ".uint64 = 4294967297, v2_float = .1.*e-45, 1.*e-45., v2_int32 = .1, 1., v4_int16 = .0, 1, 0, 1., v8_int8 = .0, 0, 0, 1, 0, 0, 0, 1.."
108 set decimal_vector ".uint64 = 4294967297, v2_float = .1.*e-45, 1.*e-45., v2_int32 = .1, 1., v4_int16 = .1, 0, 1, 0., v8_int8 = .1, 0, 0, 0, 1, 0, 0, 0.."
111 for {set i 0} {$i < 32} {incr i 1} {
112 gdb_test "print \$ev$i" ".* = $decimal_vector" "print ev$i"
115 for {set i 0} {$i < 32} {incr i 1} {
116 set pattern$i ".*ev$i.*"
117 append pattern$i $vector_register
120 send_gdb "info vector\n"
121 gdb_expect_list "info vector" ".*$gdb_prompt $" {
156 # We must restart everything, because we have set important registers to
157 # some unusual values.
161 gdb_reinitialize_dir $srcdir/$subdir
163 if ![runto_main] then {
167 gdb_test "break vector_fun" \
168 "Breakpoint 2 at.*e500-regs.c, line \[0-9\]+\\." \
169 "Set breakpoint at vector_fun"
171 # Actually it is nuch easier to see these results printed in hex.
172 # gdb_test "set output-radix 16" \
173 # "Output radix now set to decimal 16, hex 10, octal 20." \
174 # "Set output radix to hex"
176 gdb_test "continue" \
177 "Breakpoint 2, vector_fun .a=.-2, -2., b=.1, 1.*e500-regs.c.*ev_create_s32 .2, 2.;" \
178 "continue to vector_fun"
180 # Do a next over the assignment to vector 'a'.
181 gdb_test "next" ".*b = \\(vector int\\) __ev_create_s32 \\(3, 3\\);" \
184 # Do a next over the assignment to vector 'b'.
185 gdb_test "next" "c = __ev_and \\(a, b\\);" \
188 # Now 'a' should be '0x02020202...' and 'b' should be '0x03030303...'
189 gdb_test "print/x a" \
191 "print vector parameter a"
193 gdb_test "print/x b" \
195 "print vector parameter b"
197 # If we do an 'up' now, and print 'x' and 'y' we should see the values they
198 # have in main, not the values they have in vector_fun.
199 gdb_test "up" ".1.*main \\(\\) at.*e500-regs.c.*z = vector_fun \\(x, y\\);" \
210 # now go back to vector_func and do a finish, to see if we can print the return
214 ".0 vector_fun \\(a=.2, 2., b=.3, 3.\\) at.*e500-regs.c.*c = __ev_and \\(a, b\\);" \
218 "Run till exit from .0 vector_fun \\(a=.2, 2., b=.3, 3.\\) at.*e500-regs.c.*main \\(\\) at.*e500-regs.c.*z = vector_fun \\(x, y\\);.*Value returned is.*= .2, 2." \
219 "finish returned correct value"