| 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 | |
| 31 | enum { MAX_BYTES = 16 }; |
| 32 | |
| 33 | void |
| 34 | pack (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 | |
| 52 | unsigned char b[MAX_BYTES]; |
| 53 | unsigned char h[MAX_BYTES]; |
| 54 | unsigned char w[MAX_BYTES]; |
| 55 | unsigned char g[MAX_BYTES]; |
| 56 | |
| 57 | unsigned char c[MAX_BYTES]; |
| 58 | unsigned char s[MAX_BYTES]; |
| 59 | unsigned char i[MAX_BYTES]; |
| 60 | unsigned char l[MAX_BYTES]; |
| 61 | unsigned char ll[MAX_BYTES]; |
| 62 | |
| 63 | int 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 | |
| 83 | int 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 | } |