1/* This test script is part of GDB, the GNU debugger.
2
3   Copyright 1999, 2004,
4   Free Software Foundation, Inc.
5
6   This program is free software; you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 3 of the License, or
9   (at your option) any later version.
10
11   This program is distributed in the hope that it will be useful,
12   but WITHOUT ANY WARRANTY; without even the implied warranty of
13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   GNU General Public License for more details.
15
16   You should have received a copy of the GNU General Public License
17   along with this program.  If not, see <http://www.gnu.org/licenses/>.
18   */
19
20/* Test long long expression; test printing in general.
21 *
22 * /CLO/BUILD_ENV/Exports/cc -g +e -o long_long long_long.c
23 *
24 * or
25 *
26 * cc +e +DA2.0 -g -o long_long long_long.c
27 */
28
29#include <string.h>
30
31enum { MAX_BYTES = 16 };
32
33void
34pack (unsigned char b[MAX_BYTES], int size, int nr)
35{
36  static long long val[] = { 0x123456789abcdefLL, 01234567123456701234567LL, 12345678901234567890ULL};
37  volatile static int e = 1;
38  int i;
39  for (i = 0; i < nr; i++)
40    {
41      int offset;
42      if (*(char *)&e)
43	/* Little endian.  */
44	offset = sizeof (long long) - size;
45      else
46	/* Big endian endian.  */
47	offset = 0;
48      memcpy (b + size * i, (char *) val + sizeof (long long) * i + offset, size);
49    }
50}
51
52unsigned char b[MAX_BYTES];
53unsigned char h[MAX_BYTES];
54unsigned char w[MAX_BYTES];
55unsigned char g[MAX_BYTES];
56
57unsigned char c[MAX_BYTES];
58unsigned char s[MAX_BYTES];
59unsigned char i[MAX_BYTES];
60unsigned char l[MAX_BYTES];
61unsigned char ll[MAX_BYTES];
62
63int known_types()
64{
65  /* A union is used here as, hopefully it has well defined packing
66     rules.  */
67  struct {
68    long long bin, oct, dec, hex;
69  } val;
70  memset (&val, 0, sizeof val);
71
72  /* Known values, filling the full 64 bits.  */
73  val.bin = 0x123456789abcdefLL; /* 64 bits = 16 hex digits */
74  val.oct = 01234567123456701234567LL; /*  = 21+ octal digits */
75  val.dec = 12345678901234567890ULL;    /*  = 19+ decimal digits */
76
77  /* Stop here and look!  */
78  val.hex = val.bin - val.dec | val.oct;
79
80  return 0;
81}
82
83int main() {
84
85   /* Pack Byte, Half, Word and Giant arrays with byte-orderd values.
86      That way "(gdb) x" gives the same output on different
87      architectures.  */
88   pack (b, 1, 2);
89   pack (h, 2, 2);
90   pack (w, 4, 2);
91   pack (g, 8, 2);
92   pack (c, sizeof (char), 2);
93   pack (s, sizeof (short), 2);
94   pack (i, sizeof (int), 2);
95   pack (l, sizeof (long), 2);
96   pack (ll, sizeof (long long), 2);
97
98   known_types();
99
100   return 0;
101}
102