函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\kgdb.c Create Date:2022-07-27 09:40:03
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：kgdb_nmi_handler

函数原型：static int kgdb_nmi_handler(unsigned int cmd, struct pt_regs *regs)

返回类型：int

参数：

类型参数名称
unsigned intcmd
struct pt_regs *regs
501  当:cmd恒等于NMI_LOCAL
502  如果atomic_read( & kgdb_active)不等于负1则
504  cpu等于These macros fold the SMP functionality into a single CPU system()
505  kgdb_nmicallback(cpu, regs)
506  设置内存位
507  h_nmi_watchdog - restart NMI watchdog timeout.* If the architecture supports the NMI watchdog, touch_nmi_watchdog()* may be used to reset the timeout - for code which intentionally* disables interrupts for a long time. This call is stateless.
509  返回:NMI_HANDLED
511  退出
513  当:cmd恒等于NMI_UNKNOWN
514  cpu等于These macros fold the SMP functionality into a single CPU system()
516  如果__test_and_clear_bit - Clear a bit and return its old value*@nr: Bit to clear*@addr: Address to count from* This operation is non-atomic. If two instances of this operation race, one* can appear to succeed but actually fail.则返回:NMI_HANDLED
519  退出
520  默认
522  退出
524  返回:NMI_DONE