Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\kprobes\core.c Create Date:2022-07-28 08:38:41
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:Interrupts are disabled on entry as trap3 is an interrupt gate and they* remain disabled throughout this function.

Proto:int kprobe_int3_handler(struct pt_regs *regs)

Type:int

Parameter:

TypeParameterName
struct pt_regs *regs
664  If ser_mode(regs) determines whether a register set came from user* mode Then Return 0
667  addr = ip - sizeof(kprobe_opcode_t)
674  kcb = get_kprobe_ctlblk()
675  p = Get the kprobe at this addr (if any) - called with preemption disabled
677  If p Then
678  If kprobe_running() will just return the current_kprobe on this CPU Then
679  If 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. Then Return 1
681  Else
682  set_current_kprobe(p, regs, kcb)
683  kprobe_status = kprobe_status settings
692  If Not Called before addr is executed. || Not Called before addr is executed. (p, regs) Then setup_singlestep(p, regs, kcb, 0)
694  Else reset_current_kprobe()
696  Return 1
698  Else if addr != BREAKPOINT_INSTRUCTION Then
708  ip = addr
709  Return 1
712  Return 0