voidaee_sram_fiq_log(constchar*msg){intcount =strlen(msg), rem, delay =100;structram_console_buffer*buffer=ram_console_buffer;if(atomic_xchg(&rc_in_fiq,1))return;while((delay >0) && (spin_is_locked(&ram_console_lock))) { udelay(1); delay--; }if(count > ram_console_buffer_siz...
Threads.atomic_xchg!(x::Atomic{T}, newval::T) where T原子交換x中的值以原子方式將 x 中的值與 newval 交換。返回舊值。有關詳細信息,請參閱 LLVM 的 atomicrmw xchg 指令。例子julia> x = Threads.Atomic{Int}(3) Base.Threads.Atomic{Int64}(3) julia> Threads.atomic_xchg!(x, 2) 3 ju...
函数名称:atomic_xchg 函数原型:static inline int atomic_xchg(atomic_t *v, int i) 返回类型:int 参数: 类型参数名称 atomic_t * v int i 613 kasan_check_write(v, v的长度) 614 返回:arch_atomic_xchg(v, i) 调用者 名称描述 cpu_set_state_online Mark the specified CPU online.* Note that...
发布者：全栈程序员栈长，转载请注明出处：https://javaforall.cn/163808.html原文链接：https://java...
atomic_xchg requires explicit memory barriers around the operation. int atomic_cmpxchg(atomic_t *v, int old, int new); This performs an atomic compare exchange operation on the atomic value v, 1 change: 1 addition & 0 deletions 1 Documentation/memory-barriers.txt Original file line numberDif...
svn: symbol lookup error: /usr/local/subversion/lib/libsvn_subr-1.so.0: undefined symbol: apr_atomic_xchgptr 问题是出在了libsvn_subr-1.so.0库文件上,那就先查看一下它所依赖的动态连接库信息吧 ldd /usr/local/subversion/lib/libsvn_subr-1.so.0linux-vdso.so.1=> (0x00007fff023fd000...
_ReadWriteBarrier();//Or `asm volatile("":::"memory");`forgcc/clang my_atomic.store(1, std::memory_order_acquire); 我明确地说是x86 共1个答案 匿名用户 mov-storemgrid和xchg都是在x86上实现顺序一致性存储的有效方法。带有内存的xchg上的隐式lock前缀使其成为一个完整的内存屏障,就像x86上的所有...
// Implementation of int32_t atomic_xchg(int32_t exchange_value, volatile int32_t* dest) // used by Atomic::xchg(volatile int32_t* dest, int32_t exchange_value) // // xchg exists as far back as 8086, lock needed for MP only // Stack layout immediately after call: Expand Down ...
Some code in hotspot depends on Atomic::xchg to be a full memory barrier. Example: void Parker::park(bool isAbsolute, jlong time) { // Ideally we'd do something useful while spinning, such // as calling unpackTime(). // Optional fast-path check: ...
symbol lookup error: /usr/local/lib/libsvn_subr-1.so.0: undefined symbol: apr_atomic_xchgptr 首先确保你安装了libapr和libapr-util chenww@chenww:/usr/lib$ sudo dpkg --list |grep apr ii libapr1 1.4.6-1 Apache Portable Runtime Library ...