函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\hw_breakpoint.c Create Date:2022-07-27 08:45:37
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Dump the debug register contents to the user.* We can't dump our per cpu values because it* may contain cpu wide breakpoint, something that* doesn't belong to the current task.* TODO: include non-ptrace user breakpoints (perf)

函数原型：void aout_dump_debugregs(struct user *dump)

返回类型：void

参数：

类型参数名称
struct user *dump
369  dr7等于0
372  thread等于thread
374  以i小于Total number of available HW breakpoint registers 循环
375  bp等于 Save middle states of ptrace breakpoints [i]
377  如果bp且非disabled则
378  u_debugreg[i]等于bp_addr
379  info等于counter_arch_bp(bp)
380  dr7或等于Encode the length, type, Exact, and Enable bits for a particular breakpoint* as stored in debug register 7.
381  否则
382  u_debugreg[i]等于0
386  u_debugreg[4]等于0
387  u_debugreg[5]等于0
388  u_debugreg[6]等于debugreg6
390  u_debugreg[7]等于dr7