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List:       gdb
Subject:    Need real life synthetic use cases for debugging
From:       Nagmat Nazarov via Gdb <gdb () sourceware ! org>
Date:       2021-01-07 7:40:54
Message-ID: CAJnvuZ80vuCArk1AXOde1JBz2iQ538X5Jb=72w4sLykbx90T+A () mail ! gmail ! com
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We have *implemented PrC(program context) register* which adds program
counter value of instruction where we have* jump (JAL or JALR) instruction* on
RISC-V architecture. By using *PrC* we can* set breakpoints on exact order
of function calls*. We example below you can see PrC values of function
call graph where f1,f2 and f3 are functions:

PATH

PrC

f1

9c6

f1->f2

1246

f1->f2->f3

19be

f1->f3

12ac

f1->f3->f2

18c0

f2

a04

f2->f1

111c

f2->f1->f3

1a02

f2->f3

117c

f2->f3->f1

1742

f3

a42

f3->f1

1008

f3->f1->f2

1888

f3->f2

1056

f3->f2->f1

176e

As you see all PrC values are different from each other. By using PrC I can
set breakpoints on consecutive chain of function calls. Now I need real
life synthetic cases where I can use this method. Any help is appreciated.

Kind regards,
Nagmat
nagmat@gmail.com
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