ARM64 ret
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系统调用返回
/*
* This is the fast syscall return path. We do as little as possible here,
* and this includes saving x0 back into the kernel stack.
*/
ret_fast_syscall:
disable_irq // disable interrupts
ldr x1, [tsk, #TI_FLAGS]
and x2, x1, #_TIF_WORK_MASK
cbnz x2, fast_work_pending
tbz x1, #TIF_SINGLESTEP, fast_exit
disable_dbg
enable_step x2
fast_exit:
kernel_exit 0, ret = 1
| 阿里云国内75折 回扣 微信号：monov8 |
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