xref: /netbsd-src/external/gpl3/gdb.old/dist/gdb/unittests/unpack-selftests.c (revision dd75ac5b443e967e26b4d18cc8cd5eb98512bfbf)
1 /* Self tests for unpack_field_as_long
2 
3    Copyright (C) 2018-2020 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 }
63