1 # Copyright 2003, 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
21 # Tests for Powerpc E500 register setting and fetching
28 # Test the use of registers, especially E500 registers, for Powerpc.
29 # This file uses e500-regs.c for input.
35 if ![istarget "powerpc-*eabispe"] then {
36 verbose "Skipping e500 register tests."
40 set testfile "e500-regs"
41 set binfile ${objdir}/${subdir}/${testfile}
42 set src1 ${srcdir}/${subdir}/${testfile}.c
44 if { [gdb_compile ${src1} ${binfile} executable {debug nowarnings}] != "" } {
45 untested e500-regs.exp
50 gdb_reinitialize_dir $srcdir/$subdir
54 # Run to `main' where we begin our tests.
57 if ![runto_main] then {
61 # set all the registers integer portions to 1
62 for {set i 0} {$i < 32} {incr i 1} {
63 for {set j 0} {$j < 2} {incr j 1} {
64 gdb_test "set \$ev$i.v2_int32\[$j\] = 1" "" "set reg ev$i.v4si.f\[$j\]"
68 # Now execute some target code, so that GDB's register cache is flushed.
70 #gdb_test "next" "" ""
72 send_gdb "show endian\n"
74 -re "(The target endianness is set automatically .currently )(big|little)( endian.*)$gdb_prompt $" {
76 set endianness $expect_out(2,string)
78 -re ".*$gdb_prompt $" {
79 fail "couldn't get endianness"
81 timeout { fail "(timeout) endianness" }
84 # And then read the E500 registers back, to see that
85 # a) the register write above worked, and
86 # b) the register read (below) also works.
88 if {$endianness == "big"} {
89 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.."
91 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.."
94 for {set i 0} {$i < 32} {incr i 1} {
95 gdb_test "info reg ev$i" "ev$i.*$vector_register" "info reg ev$i"
98 # Test wether the GPRs are updated accordingly. (GPRs are just the lower
99 # 32 bits of the EV registers.)
101 set general_register "0x1\[ \t\]+1"
103 for {set i 0} {$i < 32} {incr i 1} {
104 gdb_test "info reg r$i" "r$i.*$general_register" "info reg r$i"
107 # Now redo the same tests, but using the print command.
108 # Note: in LE case, the char array is printed WITHOUT the last character.
109 # Gdb treats the terminating null char in the array like the terminating
110 # null char in a string and doesn't print it. This is not a failure, but
113 if {$endianness == "big"} {
114 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 = ..000.000.000.001.000.000.000.001.."
116 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 = ..001.000.000.000.001.000.000.."
119 for {set i 0} {$i < 32} {incr i 1} {
120 gdb_test "print \$ev$i" ".* = $decimal_vector" "print ev$i"
123 for {set i 0} {$i < 32} {incr i 1} {
124 set pattern$i ".*ev$i.*"
125 append pattern$i $vector_register
128 send_gdb "info vector\n"
129 gdb_expect_list "info vector" ".*$gdb_prompt $" {
164 # We must restart everything, because we have set important registers to
165 # some unusual values.
169 gdb_reinitialize_dir $srcdir/$subdir
171 if ![runto_main] then {
175 gdb_test "break vector_fun" \
176 "Breakpoint 2 at.*e500-regs.c, line \[0-9\]+\\." \
177 "Set breakpoint at vector_fun"
179 # Actually it is nuch easier to see these results printed in hex.
180 # gdb_test "set output-radix 16" \
181 # "Output radix now set to decimal 16, hex 10, octal 20." \
182 # "Set output radix to hex"
184 gdb_test "continue" \
185 "Breakpoint 2, vector_fun .a=.-2, -2., b=.1, 1.*e500-regs.c.*ev_create_s32 .2, 2.;" \
186 "continue to vector_fun"
188 # Do a next over the assignment to vector 'a'.
189 gdb_test "next" ".*b = \\(vector int\\) __ev_create_s32 \\(3, 3\\);" \
192 # Do a next over the assignment to vector 'b'.
193 gdb_test "next" "c = __ev_and \\(a, b\\);" \
196 # Now 'a' should be '0x02020202...' and 'b' should be '0x03030303...'
197 gdb_test "print/x a" \
199 "print vector parameter a"
201 gdb_test "print/x b" \
203 "print vector parameter b"
205 # If we do an 'up' now, and print 'x' and 'y' we should see the values they
206 # have in main, not the values they have in vector_fun.
207 gdb_test "up" ".1.*main \\(\\) at.*e500-regs.c.*z = vector_fun \\(x, y\\);" \
218 # now go back to vector_func and do a finish, to see if we can print the return
222 ".0 vector_fun \\(a=.2, 2., b=.3, 3.\\) at.*e500-regs.c.*c = __ev_and \\(a, b\\);" \
226 "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." \
227 "finish returned correct value"