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/* This test script is part of GDB, the GNU debugger.
Copyright 1999-2013 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Test long long expression; test printing in general.
*
* /CLO/BUILD_ENV/Exports/cc -g +e -o long_long long_long.c
*
* or
*
* cc +e +DA2.0 -g -o long_long long_long.c
*/
#include <string.h>
enum { MAX_BYTES = 16 };
void
pack (unsigned char b[MAX_BYTES], int size, int nr)
{
static long long val[] = { 0x123456789abcdefLL, 01234567123456701234567LL, 12345678901234567890ULL};
volatile static int e = 1;
int i;
for (i = 0; i < nr; i++)
{
int offset;
if (*(char *)&e)
/* Little endian. */
offset = sizeof (long long) - size;
else
/* Big endian endian. */
offset = 0;
memcpy (b + size * i, (char *) val + sizeof (long long) * i + offset, size);
}
}
unsigned char b[MAX_BYTES];
unsigned char h[MAX_BYTES];
unsigned char w[MAX_BYTES];
unsigned char g[MAX_BYTES];
unsigned char c[MAX_BYTES];
unsigned char s[MAX_BYTES];
unsigned char i[MAX_BYTES];
unsigned char l[MAX_BYTES];
unsigned char ll[MAX_BYTES];
int known_types()
{
/* A union is used here as, hopefully it has well defined packing
rules. */
struct {
long long bin, oct, dec, hex;
} val;
memset (&val, 0, sizeof val);
/* Known values, filling the full 64 bits. */
val.bin = 0x123456789abcdefLL; /* 64 bits = 16 hex digits */
val.oct = 01234567123456701234567LL; /* = 21+ octal digits */
val.dec = 12345678901234567890ULL; /* = 19+ decimal digits */
/* Stop here and look! */
val.hex = val.bin - val.dec | val.oct;
return 0;
}
int main() {
/* Pack Byte, Half, Word and Giant arrays with byte-orderd values.
That way "(gdb) x" gives the same output on different
architectures. */
pack (b, 1, 2);
pack (h, 2, 2);
pack (w, 4, 2);
pack (g, 8, 2);
pack (c, sizeof (char), 2);
pack (s, sizeof (short), 2);
pack (i, sizeof (int), 2);
pack (l, sizeof (long), 2);
pack (ll, sizeof (long long), 2);
known_types();
return 0;
}
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