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