text: /* $NetBSD: all_sync_ops_linkable.c,v 1.4 2014/02/21 10:26:25 martin Exp $ */
  
  /*-
   * Copyright (c) 2014 The NetBSD Foundation, Inc.
   * All rights reserved.
   *
   * This code is derived from software contributed to The NetBSD Foundation
   * by Martin Husemann <martin@NetBSD.org>.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   */
  
  /*
   * This is a simple link-time test to verify all builtin atomic sync
   * operations are available. Depending on the exact cpu/arch code generator
   * options, some of these need support functions (which on NetBSD we
   * typically provide in src/common/lib/libc/atomic).
   *
   * The list of operations has been extracted from sync-builtins.def file
   * in the gcc distribution (as of gcc 4.8.2).
   */
  
  #include <machine/types.h>
  #include <sys/inttypes.h>
  
  volatile uint8_t u8 = 0;
  volatile uint16_t u16 = 0;
  volatile uint32_t u32 = 0;
  
  #ifdef __HAVE_ATOMIC64_OPS
  volatile uint64_t u64 = 0;
  #endif
  
  int
  main(int argc, char **argv)
  {
  	__sync_synchronize();
  	__sync_add_and_fetch(&u8, 1);
  	__sync_add_and_fetch_1(&u8, 1);
  	__sync_add_and_fetch_2(&u16, 1);
  	__sync_add_and_fetch_4(&u32, 1);
  #ifdef __HAVE_ATOMIC64_OPS
  	__sync_add_and_fetch_8(&u64, 1);
  #endif
  	__sync_bool_compare_and_swap(&u8, 1, 2);
  	__sync_bool_compare_and_swap_1(&u8, 1, 2);
  	__sync_bool_compare_and_swap_2(&u16, 1, 2);
  	__sync_bool_compare_and_swap_4(&u32, 1, 2);
  #ifdef __HAVE_ATOMIC64_OPS
  	__sync_bool_compare_and_swap_8(&u64, 1, 2);
  #endif
  	__sync_fetch_and_add(&u8, 1);
  	__sync_fetch_and_add_1(&u8, 1);
  	__sync_fetch_and_add_2(&u16, 1);
  	__sync_fetch_and_add_4(&u32, 1);
  #ifdef __HAVE_ATOMIC64_OPS
  	__sync_fetch_and_add_8(&u64, 1);
  #endif
  	__sync_fetch_and_and(&u8, 0x80);
  	__sync_fetch_and_and_1(&u8, 0x80);
  	__sync_fetch_and_and_2(&u16, 0x80);
  	__sync_fetch_and_and_4(&u32, 0x80);
  #ifdef __HAVE_ATOMIC64_OPS
  	__sync_fetch_and_and_8(&u64, 0x80);
  #endif
  #ifndef __clang__
  	__sync_fetch_and_nand(&u8, 0x80);
  	__sync_fetch_and_nand_1(&u8, 0x80);
  	__sync_fetch_and_nand_2(&u16, 0x80);
  	__sync_fetch_and_nand_4(&u32, 0x80);
  #ifdef __HAVE_ATOMIC64_OPS
  	__sync_fetch_and_nand_8(&u64, 0x80);
  #endif
  #endif
  	__sync_fetch_and_or(&u8, 0x80);
  	__sync_fetch_and_or_1(&u8, 0x80);
  	__sync_fetch_and_or_2(&u16, 0x80);
  	__sync_fetch_and_or_4(&u32, 0x80);
  #ifdef __HAVE_ATOMIC64_OPS
  	__sync_fetch_and_or_8(&u64, 0x80);
  #endif
  	__sync_fetch_and_sub(&u8, 0x80);
  	__sync_fetch_and_sub_1(&u8, 0x80);
  	__sync_fetch_and_sub_2(&u16, 0x80);
  	__sync_fetch_and_sub_4(&u32, 0x80);
  #ifdef __HAVE_ATOMIC64_OPS
  	__sync_fetch_and_sub_8(&u64, 0x80);
  #endif
  	__sync_fetch_and_xor(&u8, 0x80);
  	__sync_fetch_and_xor_1(&u8, 0x80);
  	__sync_fetch_and_xor_2(&u16, 0x80);
  	__sync_fetch_and_xor_4(&u32, 0x80);
  #ifdef __HAVE_ATOMIC64_OPS
  	__sync_fetch_and_xor_8(&u64, 0x80);
  #endif
  	__sync_lock_release(&u8);
  	__sync_lock_release_1(&u8);
  	__sync_lock_release_2(&u16);
  	__sync_lock_release_4(&u32);
  #ifdef __HAVE_ATOMIC64_OPS
  	__sync_lock_release_8(&u64);
  #endif
  	__sync_lock_test_and_set(&u8, 5);
  	__sync_lock_test_and_set_1(&u8, 5);
  	__sync_lock_test_and_set_2(&u16, 5);
  	__sync_lock_test_and_set_4(&u32, 5);
  #ifdef __HAVE_ATOMIC64_OPS
  	__sync_lock_test_and_set_8(&u64, 5);
  #endif
  #ifndef __clang__
  	__sync_nand_and_fetch(&u8, 5);
  	__sync_nand_and_fetch_1(&u8, 5);
  	__sync_nand_and_fetch_2(&u16, 5);
  	__sync_nand_and_fetch_4(&u32, 5);
  #ifdef __HAVE_ATOMIC64_OPS
  	__sync_nand_and_fetch_8(&u64, 5);
  #endif
  #endif
  	__sync_or_and_fetch(&u8, 5);
  	__sync_or_and_fetch_1(&u8, 5);
  	__sync_or_and_fetch_2(&u16, 5);
  	__sync_or_and_fetch_4(&u32, 5);
  #ifdef __HAVE_ATOMIC64_OPS
  	__sync_or_and_fetch_8(&u64, 5);
  #endif
  	__sync_sub_and_fetch(&u8, 5);
  	__sync_sub_and_fetch_1(&u8, 5);
  	__sync_sub_and_fetch_2(&u16, 5);
  	__sync_sub_and_fetch_4(&u32, 5);
  #ifdef __HAVE_ATOMIC64_OPS
  	__sync_sub_and_fetch_8(&u64, 5);
  #endif
  	__sync_val_compare_and_swap(&u8, 5, 9);
  	__sync_val_compare_and_swap_1(&u8, 5, 9);
  	__sync_val_compare_and_swap_2(&u16, 5, 9);
  	__sync_val_compare_and_swap_4(&u32, 5, 9);
  #ifdef __HAVE_ATOMIC64_OPS
  	__sync_val_compare_and_swap_8(&u64, 5, 9);
  #endif
  	__sync_xor_and_fetch(&u8, 5);
  	__sync_xor_and_fetch_1(&u8, 5);
  	__sync_xor_and_fetch_2(&u16, 5);
  	__sync_xor_and_fetch_4(&u32, 5);
  #ifdef __HAVE_ATOMIC64_OPS
  	__sync_xor_and_fetch_8(&u64, 5);
  #endif
  
  	return 0;
  }
  