1 # Copyright 2003-2022 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
20 # Test the use of registers, especially E500 registers, for Powerpc.
21 # This file uses e500-regs.c for input.
25 if ![istarget "powerpc-*eabispe"] then {
26 verbose "Skipping e500 register tests."
30 set testfile "e500-regs"
31 set binfile ${objdir}/${subdir}/${testfile}
32 set src1 ${srcdir}/${subdir}/${testfile}.c
34 if { [gdb_compile ${src1} ${binfile} executable {debug nowarnings}] != "" } {
35 untested "failed to compile"
40 gdb_reinitialize_dir $srcdir/$subdir
44 # Run to `main' where we begin our tests.
47 if ![runto_main] then {
51 # set all the registers integer portions to 1
52 for {set i 0} {$i < 32} {incr i 1} {
53 for {set j 0} {$j < 2} {incr j 1} {
54 gdb_test "set \$ev$i.v2_int32\[$j\] = 1" "" "set reg ev$i.v4si.f\[$j\]"
58 # Now execute some target code, so that GDB's register cache is flushed.
60 #gdb_test "next" "" ""
62 set endianness [get_endianness]
64 # And then read the E500 registers back, to see that
65 # a) the register write above worked, and
66 # b) the register read (below) also works.
68 if {$endianness == "big"} {
69 set vector_register ".uint64 = 0x100000001, v2_float = .0x0, 0x0., v2_int32 = .0x1, 0x1., v4_int16 = .0x0, 0x1, 0x0, 0x1., v8_int8 = .0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1.."
71 set vector_register ".uint64 = 0x100000001, v2_float = .0x0, 0x0., v2_int32 = .0x1, 0x1., v4_int16 = .0x1, 0x0, 0x1, 0x0., v8_int8 = .0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0.."
74 for {set i 0} {$i < 32} {incr i 1} {
75 gdb_test "info reg ev$i" "ev$i.*$vector_register" "info reg ev$i"
78 # Test wether the GPRs are updated accordingly. (GPRs are just the lower
79 # 32 bits of the EV registers.)
81 set general_register "0x1\[ \t\]+1"
83 for {set i 0} {$i < 32} {incr i 1} {
84 gdb_test "info reg r$i" "r$i.*$general_register" "info reg r$i"
87 # Now redo the same tests, but using the print command.
89 if {$endianness == "big"} {
90 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.."
92 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.."
95 for {set i 0} {$i < 32} {incr i 1} {
96 gdb_test "print \$ev$i" ".* = $decimal_vector" "print ev$i"
99 for {set i 0} {$i < 32} {incr i 1} {
100 set pattern$i ".*ev$i.*"
101 append pattern$i $vector_register
104 send_gdb "info vector\n"
105 gdb_expect_list "info vector" ".*$gdb_prompt $" {
140 # We must restart everything, because we have set important registers to
141 # some unusual values.
145 gdb_reinitialize_dir $srcdir/$subdir
147 if ![runto_main] then {
151 gdb_test "break vector_fun" \
152 "Breakpoint 2 at.*e500-regs.c, line \[0-9\]+\\." \
153 "set breakpoint at vector_fun"
155 # Actually it is nuch easier to see these results printed in hex.
156 # gdb_test "set output-radix 16" \
157 # "Output radix now set to decimal 16, hex 10, octal 20." \
158 # "set output radix to hex"
160 gdb_test "continue" \
161 "Breakpoint 2, vector_fun .a=.-2, -2., b=.1, 1.*e500-regs.c.*ev_create_s32 .2, 2.;" \
162 "continue to vector_fun"
164 # Do a next over the assignment to vector 'a'.
165 gdb_test "next" ".*b = \\(vector int\\) __ev_create_s32 \\(3, 3\\);" \
168 # Do a next over the assignment to vector 'b'.
169 gdb_test "next" "c = __ev_and \\(a, b\\);" \
172 # Now 'a' should be '0x02020202...' and 'b' should be '0x03030303...'
173 gdb_test "print/x a" \
175 "print vector parameter a"
177 gdb_test "print/x b" \
179 "print vector parameter b"
181 # If we do an 'up' now, and print 'x' and 'y' we should see the values they
182 # have in main, not the values they have in vector_fun.
183 gdb_test "up" ".1.*main \\(\\) at.*e500-regs.c.*z = vector_fun \\(x, y\\);" \
194 # now go back to vector_func and do a finish, to see if we can print the return
198 ".0 vector_fun \\(a=.2, 2., b=.3, 3.\\) at.*e500-regs.c.*c = __ev_and \\(a, b\\);" \
202 "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." \
203 "finish returned correct value"