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nuttx/libs
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zhangyu117 b25f6f8a86 libc/machine: realize atomic based on hwspinlock 
Implement atomic_lock/atomic_unlock using hwspinlock when
CONFIG_LIBC_ATOMIC_HWSPINLOCK is selected, and using up_irq_save/
up_irq_restore when CONFIG_LIBC_ATOMIC_IRQ is selected. Rename
arch_atomic_irq.c to arch_atomic.c.

The 64-bit atomic operations use spinlock (spin_lock_irqsave)
regardless of the selected backend, ensuring multi-core safety.

Signed-off-by: zhangyu117 <zhangyu117@xiaomi.com>
2026-08-27 11:13:29 +08:00
..
libbuiltin !sched/arch/libc: Give fork() and vfork() their real, separate semantics. 2026-08-10 08:57:30 -03:00
libc libc/machine: realize atomic based on hwspinlock 2026-08-27 11:13:29 +08:00
libdsp tools: fix stale archive members surviving a Kconfig-driven CSRCS change 2026-07-28 21:26:03 -03:00
libm cmake: Use NUTTX(_DIR/_BIN_DIR) instead CMAKE(_SRC_DIR/_BIN_DIR) 2026-08-09 11:13:08 -03:00
libnx tools: fix stale archive members surviving a Kconfig-driven CSRCS change 2026-07-28 21:26:03 -03:00
libxx cmake: Use NUTTX(_DIR/_BIN_DIR) instead CMAKE(_SRC_DIR/_BIN_DIR) 2026-08-09 11:13:08 -03:00
CMakeLists.txt libs: migrate to SPDX identifier 2024-10-01 12:25:52 +08:00