gdb/testsuite/gdb.arch/aarch64-w-registers.exp

   1 # Copyright (C) 2022-2024 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 3 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, see <http://www.gnu.org/licenses/>.
  15
  16 # Check if the W registers have the expected size and if setting/fetching
  17 # values from W registers works correctly for both big and little endian.
  18
  19 require is_aarch64_target
  20
  21 standard_testfile
  22 if { [prepare_for_testing "failed to prepare" $testfile $srcfile {nodebug}]} {
  23     return -1
  24 }
  25
  26 if ![runto_main] {
  27     untested "could not run to main"
  28     return -1
  29 }
  30
  31 array set w_values {
  32     0 0x0
  33     1 0x10
  34     2 0x2010
  35     3 0x302010
  36     4 0x40302010
  37     5 0x40302010
  38     6 0x40302010
  39     7 0x40302010
  40     8 0x40302010
  41 }
  42
  43 array set x_values {
  44     0 0x0
  45     1 0x10
  46     2 0x2010
  47     3 0x302010
  48     4 0x40302010
  49     5 0x5040302010
  50     6 0x605040302010
  51     7 0x70605040302010
  52     8 0x8070605040302010
  53 }
  54
  55 # Exercise various things for register w<rn>
  56
  57 proc test_register { rn } {
  58     gdb_test "ptype \$w${rn}" "type = uint32_t"
  59     gdb_test "p sizeof(\$w${rn})" " = 4"
  60
  61     # Set all bits of x<rn>
  62     gdb_test_no_output "set \$x${rn}=0xffffffffffffffff" \
  63                        "set all bits of x${rn}"
  64
  65     # Test setting/fetching values
  66     for {set i 0} {$i < 9} {incr i} {
  67         global w_values
  68         global x_values
  69
  70         with_test_prefix "set w${rn} to $x_values($i)" {
  71             # Set value of W and see the effects on W and X.
  72             gdb_test_no_output "set \$w${rn}=$x_values($i)"
  73             gdb_test "p/x \$w${rn}" "= $w_values($i)"
  74             gdb_test "p/x \$x${rn}" "= $w_values($i)"
  75         }
  76
  77         with_test_prefix "set x${rn} to $x_values($i)" {
  78             # Set value of X and see the effects on W and X.
  79             gdb_test_no_output "set \$x${rn}=$x_values($i)"
  80             gdb_test "p/x \$w${rn}" "= $w_values($i)"
  81             gdb_test "p/x \$x${rn}" "= $x_values($i)"
  82
  83             # Set all bits of x<rn>
  84             gdb_test_no_output "set \$x${rn}=0xffffffffffffffff" \
  85                                "set all bits of x${rn}"
  86         }
  87     }
  88 }
  89
  90 # Run tests
  91 foreach_with_prefix endian {"little" "big"} {
  92     gdb_test "set endian ${endian}" "The target is set to ${endian} endian\."
  93
  94     for {set i 0} {$i < 31} {incr i} {
  95         test_register $i
  96     }
  97 }