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 09:40:08
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：kgdb_arch_late

函数原型：void kgdb_arch_late(void)

返回类型：void

参数：无

648  hw_breakpoint_init( & attr)
649  bp_addr等于kgdb_arch_init - Perform any architecture specific initialization.* This function will handle the initialization of any architecture* specific callbacks.
650  bp_len等于HW_BREAKPOINT_LEN_1
651  bp_type等于HW_BREAKPOINT_W
652  ff by default 等于1
653  以i小于Total number of available HW breakpoint registers 循环
654  如果pev则继续下一循环
656  pev等于register_wide_hw_breakpoint( & attr, NULL, NULL)
657  如果是错误则
658  printk(r conditions "kgdb: Could not allocate hwbreakpoints\nDisabling the kernel debugger\n")
660  pev = NULL
661  kgdb_arch_exit - Perform any architecture specific uninitalization.* This function will handle the uninitalization of any architecture* specific callbacks, for dynamic registration and unregistration.
662  返回
664  遍历在线CPU(cpu)
665  pevent等于per_cpu_ptr(pev, cpu)
666  sample_period等于1
667  overflow_handler等于kgdb_hw_overflow_handler
668  如果(destroy != NULL)则
669  destroy = NULL
670  release_bp_slot( * pevent)