1/* This test script is part of GDB, the GNU debugger.
2
3   Copyright 1999-2023 Free Software Foundation, Inc.
4
5   This program is free software; you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by
7   the Free Software Foundation; either version 3 of the License, or
8   (at your option) any later version.
9
10   This program is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   GNU General Public License for more details.
14
15   You should have received a copy of the GNU General Public License
16   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
17
18/* Test long long expression; test printing in general.
19 *
20 * /CLO/BUILD_ENV/Exports/cc -g +e -o long_long long_long.c
21 *
22 * or
23 *
24 * cc +e +DA2.0 -g -o long_long long_long.c
25 */
26
27#include <string.h>
28
29enum { MAX_BYTES = 16 };
30
31void
32pack (unsigned char b[MAX_BYTES], int size, int nr)
33{
34  static long long val[] = { 0x123456789abcdefLL, 01234567123456701234567LL, 12345678901234567890ULL};
35  volatile static int e = 1;
36  int i;
37  for (i = 0; i < nr; i++)
38    {
39      int offset;
40      if (*(char *)&e)
41	/* Little endian.  */
42	offset = sizeof (long long) - size;
43      else
44	/* Big endian endian.  */
45	offset = 0;
46      memcpy (b + size * i, (char *) val + sizeof (long long) * i + offset, size);
47    }
48}
49
50unsigned char b[MAX_BYTES];
51unsigned char h[MAX_BYTES];
52unsigned char w[MAX_BYTES];
53unsigned char g[MAX_BYTES];
54
55unsigned char c[MAX_BYTES];
56unsigned char s[MAX_BYTES];
57unsigned char i[MAX_BYTES];
58unsigned char l[MAX_BYTES];
59unsigned char ll[MAX_BYTES];
60
61int known_types()
62{
63  /* A union is used here as, hopefully it has well defined packing
64     rules.  */
65  struct {
66    long long bin, oct, dec, hex;
67  } val;
68  memset (&val, 0, sizeof val);
69
70  /* Known values, filling the full 64 bits.  */
71  val.bin = 0x123456789abcdefLL; /* 64 bits = 16 hex digits */
72  val.oct = 01234567123456701234567LL; /*  = 21+ octal digits */
73  val.dec = 12345678901234567890ULL;    /*  = 19+ decimal digits */
74
75  /* Stop here and look!  */
76  val.hex = val.bin - val.dec | val.oct;
77
78  return 0;
79}
80
81int main() {
82
83   /* Pack Byte, Half, Word and Giant arrays with byte-ordered values.
84      That way "(gdb) x" gives the same output on different
85      architectures.  */
86   pack (b, 1, 2);
87   pack (h, 2, 2);
88   pack (w, 4, 2);
89   pack (g, 8, 2);
90   pack (c, sizeof (char), 2);
91   pack (s, sizeof (short), 2);
92   pack (i, sizeof (int), 2);
93   pack (l, sizeof (long), 2);
94   pack (ll, sizeof (long long), 2);
95
96   known_types();
97
98   return 0;
99}
100