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[/] [scarts/] [trunk/] [toolchain/] [scarts-gdb/] [gdb-6.8/] [gdb/] [testsuite/] [gdb.base/] [long_long.c] - Blame information for rev 25

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1 25 jlechner
/* This test script is part of GDB, the GNU debugger.
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   Copyright 1999, 2004,
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   Free Software Foundation, Inc.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 3 of the License, or
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   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program.  If not, see <http://www.gnu.org/licenses/>.
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   */
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/* Test long long expression; test printing in general.
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 *
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 * /CLO/BUILD_ENV/Exports/cc -g +e -o long_long long_long.c
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 *
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 * or
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 *
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 * cc +e +DA2.0 -g -o long_long long_long.c
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 */
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#include <string.h>
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enum { MAX_BYTES = 16 };
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void
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pack (unsigned char b[MAX_BYTES], int size, int nr)
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{
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  static long long val[] = { 0x123456789abcdefLL, 01234567123456701234567LL, 12345678901234567890ULL};
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  volatile static int e = 1;
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  int i;
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  for (i = 0; i < nr; i++)
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    {
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      int offset;
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      if (*(char *)&e)
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        /* Little endian.  */
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        offset = sizeof (long long) - size;
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      else
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        /* Big endian endian.  */
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        offset = 0;
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      memcpy (b + size * i, (char *) val + sizeof (long long) * i + offset, size);
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    }
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}
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unsigned char b[MAX_BYTES];
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unsigned char h[MAX_BYTES];
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unsigned char w[MAX_BYTES];
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unsigned char g[MAX_BYTES];
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unsigned char c[MAX_BYTES];
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unsigned char s[MAX_BYTES];
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unsigned char i[MAX_BYTES];
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unsigned char l[MAX_BYTES];
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unsigned char ll[MAX_BYTES];
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int known_types()
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{
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  /* A union is used here as, hopefully it has well defined packing
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     rules.  */
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  struct {
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    long long bin, oct, dec, hex;
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  } val;
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  memset (&val, 0, sizeof val);
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  /* Known values, filling the full 64 bits.  */
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  val.bin = 0x123456789abcdefLL; /* 64 bits = 16 hex digits */
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  val.oct = 01234567123456701234567LL; /*  = 21+ octal digits */
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  val.dec = 12345678901234567890ULL;    /*  = 19+ decimal digits */
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  /* Stop here and look!  */
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  val.hex = val.bin - val.dec | val.oct;
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  return 0;
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}
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int main() {
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   /* Pack Byte, Half, Word and Giant arrays with byte-orderd values.
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      That way "(gdb) x" gives the same output on different
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      architectures.  */
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   pack (b, 1, 2);
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   pack (h, 2, 2);
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   pack (w, 4, 2);
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   pack (g, 8, 2);
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   pack (c, sizeof (char), 2);
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   pack (s, sizeof (short), 2);
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   pack (i, sizeof (int), 2);
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   pack (l, sizeof (long), 2);
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   pack (ll, sizeof (long long), 2);
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   known_types();
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   return 0;
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}

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