gdb/testsuite/gdb.arch/e500-regs.exp

   1 # Copyright 2003, 2004 Free Software Foundation, Inc.
   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
   5 # the Free Software Foundation; either version 2 of the License, or
   6 # (at your option) any later version.
   7 #
   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.
  12 #
  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.
  16 #
  17 # Please email any bugs, comments, and/or additions to this file to:
  18 # bug-gdb@prep.ai.mit.edu
  19 #
  20
  21 # Tests for Powerpc E500 register setting and fetching
  22
  23 if $tracelevel then {
  24     strace $tracelevel
  25 }
  26
  27 #
  28 # Test the use of registers, especially E500 registers, for Powerpc.
  29 # This file uses e500-regs.c for input.
  30 #
  31
  32 set prms_id 0
  33 set bug_id 0
  34
  35 if ![istarget "powerpc-*eabispe"] then {
  36     verbose "Skipping e500 register tests."
  37     return
  38 }
  39
  40 set testfile "e500-regs"
  41 set binfile ${objdir}/${subdir}/${testfile}
  42 set src1 ${srcdir}/${subdir}/${testfile}.c
  43
  44 if  { [gdb_compile ${src1} ${binfile} executable {debug additional_flags=-w}] != "" } {
  45      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
  46 }
  47
  48 gdb_start
  49 gdb_reinitialize_dir $srcdir/$subdir
  50 gdb_load ${binfile}
  51
  52 #
  53 # Run to `main' where we begin our tests.
  54 #
  55
  56 if ![runto_main] then {
  57     gdb_suppress_tests
  58 }
  59
  60 # set all the registers integer portions to 1
  61 for {set i 0} {$i < 32} {incr i 1} {
  62         for {set j 0} {$j < 2} {incr j 1} {
  63            gdb_test "set \$ev$i.v2_int32\[$j\] = 1" "" "set reg ev$i.v4si.f\[$j\]"
  64         }
  65 }
  66
  67 # Now execute some target code, so that GDB's register cache is flushed.
  68
  69 #gdb_test "next" "" ""
  70
  71 send_gdb "show endian\n"
  72 gdb_expect {
  73     -re "(The target endianness is set automatically .currently )(big|little)( endian.*)$gdb_prompt $" {
  74         pass "endianness"
  75         set endianness $expect_out(2,string)
  76     }
  77     -re ".*$gdb_prompt $" {
  78         fail "couldn't get endianness"
  79     }
  80     timeout             { fail "(timeout) endianness" }
  81 }
  82
  83 # And then read the E500 registers back, to see that
  84 # a) the register write above worked, and
  85 # b) the register read (below) also works.
  86
  87 if {$endianness == "big"} {
  88 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.."
  89 } else {
  90 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.."
  91 }
  92
  93 for {set i 0} {$i < 32} {incr i 1} {
  94         gdb_test "info reg ev$i" "ev$i.*$vector_register" "info reg ev$i"
  95 }
  96
  97 # Test wether the GPRs are updated accordingly. (GPRs are just the lower
  98 # 32 bits of the EV registers.)
  99
 100 set general_register "0x1\[ \t\]+1"
 101
 102 for {set i 0} {$i < 32} {incr i 1} {
 103         gdb_test "info reg r$i" "r$i.*$general_register" "info reg r$i"
 104 }
 105
 106 # Now redo the same tests, but using the print command.
 107 # Note: in LE case, the char array is printed WITHOUT the last character.
 108 # Gdb treats the terminating null char in the array like the terminating
 109 # null char in a string and doesn't print it. This is not a failure, but
 110 # the way gdb works.
 111
 112 if {$endianness == "big"} {
 113      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.."
 114 } else {
 115      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.."
 116 }
 117
 118 for {set i 0} {$i < 32} {incr i 1} {
 119         gdb_test "print \$ev$i" ".* = $decimal_vector" "print ev$i"
 120 }
 121
 122 for {set i 0} {$i < 32} {incr i 1} {
 123          set pattern$i ".*ev$i.*"
 124          append pattern$i $vector_register
 125 }
 126
 127 send_gdb "info vector\n"
 128 gdb_expect_list "info vector" ".*$gdb_prompt $" {
 129 [$pattern0]
 130 [$pattern1]
 131 [$pattern2]
 132 [$pattern3]
 133 [$pattern4]
 134 [$pattern5]
 135 [$pattern6]
 136 [$pattern7]
 137 [$pattern8]
 138 [$pattern9]
 139 [$pattern10]
 140 [$pattern11]
 141 [$pattern12]
 142 [$pattern13]
 143 [$pattern14]
 144 [$pattern15]
 145 [$pattern16]
 146 [$pattern17]
 147 [$pattern18]
 148 [$pattern19]
 149 [$pattern20]
 150 [$pattern21]
 151 [$pattern22]
 152 [$pattern23]
 153 [$pattern24]
 154 [$pattern25]
 155 [$pattern26]
 156 [$pattern27]
 157 [$pattern28]
 158 [$pattern29]
 159 [$pattern30]
 160 [$pattern31]
 161 }
 162
 163 # We must restart everything, because we have set important registers to
 164 # some unusual values.
 165
 166 gdb_exit
 167 gdb_start
 168 gdb_reinitialize_dir $srcdir/$subdir
 169 gdb_load ${binfile}
 170 if ![runto_main] then {
 171     gdb_suppress_tests
 172 }
 173
 174 gdb_test "break vector_fun" \
 175  "Breakpoint 2 at.*e500-regs.c, line \[0-9\]+\\." \
 176  "Set breakpoint at vector_fun"
 177
 178 # Actually it is nuch easier to see these results printed in hex.
 179 # gdb_test "set output-radix 16" \
 180 #   "Output radix now set to decimal 16, hex 10, octal 20." \
 181 #   "Set output radix to hex"
 182
 183 gdb_test "continue" \
 184   "Breakpoint 2, vector_fun .a=.-2, -2., b=.1, 1.*e500-regs.c.*ev_create_s32 .2, 2.;" \
 185   "continue to vector_fun"
 186
 187 # Do a next over the assignment to vector 'a'.
 188 gdb_test "next" ".*b = \\(vector int\\) __ev_create_s32 \\(3, 3\\);" \
 189   "next (1)"
 190
 191 # Do a next over the assignment to vector 'b'.
 192 gdb_test "next" "c = __ev_and \\(a, b\\);" \
 193   "next (2)"
 194
 195 # Now 'a' should be '0x02020202...' and 'b' should be '0x03030303...'
 196 gdb_test "print/x a" \
 197   ".*= .0x2, 0x2." \
 198   "print vector parameter a"
 199
 200 gdb_test "print/x b" \
 201   ".*= .0x3, 0x3." \
 202   "print vector parameter b"
 203
 204 # If we do an 'up' now, and print 'x' and 'y' we should see the values they
 205 # have in main, not the values they have in vector_fun.
 206 gdb_test "up" ".1.*main \\(\\) at.*e500-regs.c.*z = vector_fun \\(x, y\\);" \
 207   "up to main"
 208
 209 gdb_test "print x" \
 210   ".*= .-2, -2." \
 211   "print vector x"
 212
 213 gdb_test "print y" \
 214   ".*= .1, 1." \
 215   "print vector y"
 216
 217 # now go back to vector_func and do a finish, to see if we can print the return
 218 # value correctly.
 219
 220 gdb_test "down" \
 221   ".0  vector_fun \\(a=.2, 2., b=.3, 3.\\) at.*e500-regs.c.*c = __ev_and \\(a, b\\);" \
 222   "down to vector_fun"
 223
 224 gdb_test "finish" \
 225   "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." \
 226   "finish returned correct value"
 227
 228
 229