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nuttx/libs/libc/machine
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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
..
arm arm: memcpy: add NEON paths for aligned copies 2026-05-09 09:46:43 +08:00
arm64 include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
mips arch/mips: Add support for loadable ELF modules 2026-08-11 09:46:46 -03:00
renesas libc/machine/renesas: Move all source files out of gnu folder 2025-06-30 09:56:27 +08:00
risc-v libs/libc/machine/risc-v: Compare a register at a time on equal offsets. 2026-08-17 12:24:06 +02:00
sim include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
sparc include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
tricore arch/tricore: drop illd dependence for atomic 2026-08-25 10:07:25 +08:00
x86 include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
x86_64 include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
xtensa include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
arch_atomic.c libc/machine: realize atomic based on hwspinlock 2026-08-27 11:13:29 +08:00
arch_atomic.h libc/machine: split atomic into header, arch_atomic_irq.c, arch_atomic64.c 2026-08-24 13:20:45 +08:00
arch_atomic64.c nuttx/atomic: use toolchain builtin atomic function 2026-08-24 13:20:45 +08:00
arch_libc.c string:use builtin function to optimize libc function 2025-12-20 10:38:53 +08:00
CMakeLists.txt libc/machine: realize atomic based on hwspinlock 2026-08-27 11:13:29 +08:00
Kconfig libc/machine: realize atomic based on hwspinlock 2026-08-27 11:13:29 +08:00
Make.defs libc/machine: realize atomic based on hwspinlock 2026-08-27 11:13:29 +08:00