gdb/unittests/unpack-selftests.c

   1 /* Self tests for unpack_field_as_long
   2
   3    Copyright (C) 2018-2023 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #include "defs.h"
  21 #include "gdbsupport/selftest.h"
  22 #include "selftest-arch.h"
  23 #include "value.h"
  24 #include "gdbtypes.h"
  25 #include "arch-utils.h"
  26
  27 namespace selftests {
  28 namespace unpack {
  29
  30 static void
  31 unpack_field_as_long_tests (struct gdbarch *arch)
  32 {
  33   gdb_byte buffer[8];
  34   const struct builtin_type *bt = builtin_type (arch);
  35   struct type *struct_type = arch_composite_type (arch, "<<selftest>>",
  36                                                   TYPE_CODE_STRUCT);
  37
  38   append_composite_type_field (struct_type, "field0", bt->builtin_int8);
  39   append_composite_type_field_aligned (struct_type, "field1",
  40                                        bt->builtin_uint32, 4);
  41
  42   memset (buffer, 0, sizeof (buffer));
  43   buffer[0] = 255;
  44   if (gdbarch_byte_order (arch) == BFD_ENDIAN_BIG)
  45     buffer[7] = 23;
  46   else
  47     buffer[4] = 23;
  48
  49   SELF_CHECK (unpack_field_as_long (struct_type, buffer, 0) == -1);
  50   SELF_CHECK (unpack_field_as_long (struct_type, buffer, 1) == 23);
  51 }
  52
  53 }
  54 }
  55
  56 void _initialize_unpack_selftests ();
  57 void
  58 _initialize_unpack_selftests ()
  59 {
  60   selftests::register_test_foreach_arch
  61     ("unpack_field_as_long", selftests::unpack::unpack_field_as_long_tests);
  62 }