gdb/testsuite/gdb.dwarf2/intbits.c

   1 /* Copyright (C) 2020-2021 Free Software Foundation, Inc.
   2
   3    This file is part of GDB.
   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 /* A 16 bit slot holding a 7-bit value of -1.  Note that, for all
  19    these values, we explicitly set the endian-ness in the DWARF to
  20    avoid issues.  */
  21 unsigned char i16_m1[2] = { 0x7f, 0 };
  22
  23 /* A 16 bit slot holding a 1-bit value of 1 at offset 2.  */
  24 unsigned char u16_1[2] = { 0x4, 0 };
  25
  26 /* A 32 bit slot holding a 17-bit value of -2.  */
  27 unsigned char u32_m2[4] = { 0xfe, 0xff, 0x01, 0 };
  28
  29 /* A 32 bit slot holding a 31 bit value of 1.  The high bit should be
  30    ignored when reading.  */
  31 unsigned char u32_1[4] = { 1, 0, 0, 0x80 };
  32
  33 /* A 32 bit slot holding a 31 bit value of 1, offset by 1 bit.  */
  34 unsigned char u32_1_off[4] = { 2, 0, 0, 0 };
  35
  36 /* A 32 bit slot holding a 30 bit value of 1, offset by 1 bit.
  37    Big-endian.  */
  38 unsigned char be30_1_off[4] = { 0x80, 0, 0, 2 };
  39
  40 /* A 32 bit slot holding a 0 bit value.  We don't use 0 in the array
  41    here, to catch any situation where gdb tries to use the memory.  */
  42 unsigned char u32_0[4] = { 0xff, 0xff, 0xff, 0xff };
  43
  44 int
  45 main (void)
  46 {
  47   return 0;
  48 }