函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\kprobes\core.c Create Date:2022-07-27 09:37:56
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Interrupts are disabled on entry as trap3 is an interrupt gate and they* remain disabled throughout this function.

函数原型：int kprobe_int3_handler(struct pt_regs *regs)

返回类型：int

参数：

类型参数名称
struct pt_regs *regs
664  如果ser_mode(regs) determines whether a register set came from user* mode则返回:0
667  addr等于ip减sizeof(kprobe_opcode_t)
674  kcb等于get_kprobe_ctlblk()
675  p等于Get the kprobe at this addr (if any) - called with preemption disabled
677  如果p则
678  如果kprobe_running() will just return the current_kprobe on this CPU 则
679  如果We have reentered the kprobe_handler(), since another probe was hit while* within the handler. We save the original kprobes variables and just single* step on the instruction of the new probe without calling any user handlers.则返回:1
681  否则
682  set_current_kprobe(p, regs, kcb)
683  kprobe_status等于kprobe_status settings
692  如果非 Called before addr is executed. 或非 Called before addr is executed. (p, regs)则setup_singlestep(p, regs, kcb, 0)
694  否则reset_current_kprobe()
696  返回:1
698  否则如果addr不等于BREAKPOINT_INSTRUCTION则
708  ip等于addr
709  返回:1
712  返回:0
调用者
名称描述
do_int3