Comments (3)
不太懂你说的意思,能不能举例说明?
from fridamemoryaccesstrace.
例如某个应用运行的过程中CPU通过Load/Store读了地址0x1的数据,写了地址0x2的数据,可以通过这个工具捕获到吗?
from fridamemoryaccesstrace.
这个工具不行,这个工具只能对某片地址的访问进行trace,以Linux系统,arm64架构为例,如果需要对指令级别进行trace这里可以给出两种解决方案:
- 对于能进入调试状态的程序,使目标进程进入调试状态,单步调试,trace指令,过滤ldr,str指令,对于lldb调试器参考https://github.com/yangyss/lldb-trace
- 对于不能进入调试状态的程序,且没有加固的程序,可以使用二进制插桩技术,程序.text段的全部ldr,str指令进行hook插桩。
注意,对于多线程需要对线程的访问序列进行过滤。
from fridamemoryaccesstrace.
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