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2f46ced5c7
Split the atomic implementation into three files: - arch_atomic.h: Shared macros (STORE, LOAD, etc.) using atomic_lock()/ atomic_unlock() abstraction - arch_atomic_irq.c: 32-bit atomic functions using IRQ disable (conditional on CONFIG_LIBC_ATOMIC_IRQ via Make.defs) - arch_atomic64.c: 64-bit atomic functions using spinlock (always compiled, multi-core safe). The __atomic_* functions are always provided (GCC runtime helpers), while nx_atomic_* functions are conditional on !CONFIG_LIBC_ATOMIC_TOOLCHAIN. Signed-off-by: zhangyu117 <zhangyu117@xiaomi.com> |
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