gdb/testsuite/gdb.base/endian.exp

   1 # Copyright (C) 2018-2024 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 # Test automatic endianness selection.
  17
  18 standard_testfile
  19
  20 set en_auto "The target endianness is set automatically"
  21 set en_set "The target is set to"
  22
  23 clean_restart
  24
  25 # First check that the automatic endianness is updated
  26 # with the `set endian' command.
  27 gdb_test "set endian auto" \
  28     "$en_auto \\\(currently \(\?:big\|little\) endian\\\)\\." \
  29     "default target endianness"
  30 gdb_test "set endian big" "$en_set big endian\\." \
  31     "set target endianness"
  32 gdb_test "set endian auto" "$en_auto \\\(currently big endian\\\)\\." \
  33     "auto target endianness"
  34 gdb_test "set endian little" "$en_set little endian\\." \
  35     "set target endianness little"
  36 gdb_test "set endian auto" "$en_auto \\\(currently little endian\\\)\\." \
  37     "auto target endianness little"
  38 gdb_test "set endian big" "$en_set big endian\\." \
  39     "set target endianness big"
  40 gdb_test "set endian auto" "$en_auto \\\(currently big endian\\\)\\." \
  41     "auto target endianness big"
  42
  43 if { [build_executable ${testfile}.exp $testfile] } {
  44     untested "failed to compile"
  45     return
  46 }
  47
  48 gdb_file_cmd $binfile
  49
  50 set test "get target endianness"
  51 if { [gdb_test_multiple "show endian" "$test" {
  52     -re "$en_auto \\\(currently \(big\|little\) endian\\\)\\..*$gdb_prompt" {
  53         set endian $expect_out(1,string)
  54         pass "$test"
  55     }
  56 }] } {
  57     return
  58 }
  59
  60 # Now check that the automatic endianness is updated
  61 # according to the executable selected.
  62 gdb_unload "unload 1"
  63 gdb_test "set endian big" "$en_set big endian\\." \
  64     "override target endianness big"
  65 gdb_test "set endian auto" "$en_auto \\\(currently big endian\\\)\\." \
  66     "override auto target endianness big"
  67
  68 gdb_file_cmd $binfile
  69 gdb_test "show endian" "$en_auto \\\(currently $endian endian\\\)\\." \
  70     "previously big default executable endianness"
  71
  72 gdb_unload "unload 2"
  73 gdb_test "show endian" "$en_auto \\\(currently $endian endian\\\)\\." \
  74     "previously big default no executable endianness"
  75 gdb_test "set endian little" "$en_set little endian\\." \
  76     "override target endianness little"
  77 gdb_test "set endian auto" "$en_auto \\\(currently little endian\\\)\\." \
  78     "override auto target endianness little"
  79
  80 gdb_file_cmd $binfile
  81 gdb_test "show endian" "$en_auto \\\(currently $endian endian\\\)\\." \
  82     "previously little default executable endianness"
  83
  84 gdb_unload "unload 3"
  85 gdb_test "show endian" "$en_auto \\\(currently $endian endian\\\)\\." \
  86     "previously little default no executable endianness"