How could I know where bb comes from?

[0x1...@gmail.com]

I can use drmgr_register_bb_instrumentation_event to get bb event,but i want to know where is the bb block call from?

[Qin Zhao]

• tag is a unique identifier for the basic block fragment. Use dr_fragment_app_pc() to translate it to an application address.

On Fri, May 25, 2018 at 7:42 AM, <0x1...@gmail.com> wrote:

I can use drmgr_register_bb_instrumentation_event to get bb event,but i want to know where is the bb block call from?

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[Qin Zhao]

you might need instrument the code to record which bb is last executed. Then you can know which bb lead to current bb.

Qin

On Tue, May 29, 2018 at 6:08 AM, <0x1...@gmail.com> wrote:

i'm sorry i didn't express myself very clearly.

for example,bb_a => bb_c and bb_b=>bb_c.If i have a event at bb_c,can i know the previous bb is bb_a or bb_b?

在 2018年5月26日星期六 UTC+8上午2:37:58，qin写道：

• tag is a unique identifier for the basic block fragment. Use dr_fragment_app_pc() to translate it to an application address.

On Fri, May 25, 2018 at 7:42 AM, <0x1...@gmail.com> wrote:

I can use drmgr_register_bb_instrumentation_event to get bb event,but i want to know where is the bb block call from?

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