BSD licensed GCC x86 32/64bit RTL atomic operations library

The library shall implement common atomic operations such as inc, dec, add, sub, xchg, cmpxchg, xadd. See for example Linux kernel atomic operations. A test program written in C must be provided The library shall compile with GNU/GCC 4.1 or later and is to be BSD licensed. The library shall support x86 32bit (i686+) and 64bit CPU's Operand sizes are 8, 16, 32 and 64bits (also on 32 bit i686+ systems). Examples are: /*! * Atomically exchange 32 bit values * * @param p Pointer to value * @param v new 32 bit value * @return old new v value */ static inline uint atomic_xchg32(volatile uint *p, uint v) { __asm__ __volatile__("xchgl %0, %1" :"=q" (v) :"m" (*p), "0" (v) :"memory"); return v; } /*! * Atomically xadd to 4byte value * * @param p Pointer to value * @param v value to add */ static inline u32 atomic_xadd32(uint *p, uint v) { __asm__ __volatile__("lock xaddl %0, (%1)n" : "+r" (v), "+r" (p) : : "memory"); return v; } The implementation _must_ be _original_ and the copyright holder is the developer, under the following 2 clause BSD license. /* Copyright (c), 201x developer * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * The name of developer may not be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT * OWNER 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. */ Please provide a detailed list of functions you intend to implement. Please explain how you will implement the test program to test these functions.