Make drmemtrace trace only for memory records in offline

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Gandholi Sarat

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May 26, 2024, 1:49:02 PMMay 26

to DynamoRIO Users

I want to have a offline trace with only memory records, is there any way to restrict drmemtrace to only trace memory records specifically or is a custom tool required?

Derek Bruening

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May 26, 2024, 4:00:21 PMMay 26

to Gandholi Sarat, DynamoRIO Users

"-L0I_filter -L0I_size 0" should do it. Here is an example on a DR build dir using the DR test app allasm_repstr:

$ bin64/drrun -t drmemtrace -offline -L0I_filter -L0I_size 0 -- suite/tests/bin/allasm_repstr

Adios world!

$ bin64/drrun -t drmemtrace -indir drmemtrace.allasm_repstr.**dir -tool view 2>&1 | head -50

Output format:

<--record#-> <--instr#->: <---tid---> <record details>

------------------------------------------------------------

1 0: 1550019 <marker: version 6>

2 0: 1550019 <marker: filetype 0xac2>

3 0: 1550019 <marker: cache line size 64>

4 0: 1550019 <marker: chunk instruction count 10000000>

5 0: 1550019 <marker: page size 4096>

6 0: 1550019 <marker: timestamp 13361227035102279>

7 0: 1550019 <marker: tid 1550019 on core 6>

8 0: 1550019 <marker: instruction count 0>

9 0: 1550019 read 1 byte(s) @ 0x000000000040200e by PC 0x000000000040102e

10 0: 1550019 write 1 byte(s) @ 0x0000000000402000 by PC 0x000000000040102e

11 0: 1550019 read 1 byte(s) @ 0x000000000040200f by PC 0x000000000040102e

12 0: 1550019 write 1 byte(s) @ 0x0000000000402001 by PC 0x000000000040102e

13 0: 1550019 read 1 byte(s) @ 0x0000000000402010 by PC 0x000000000040102e

14 0: 1550019 write 1 byte(s) @ 0x0000000000402002 by PC 0x000000000040102e

15 0: 1550019 read 1 byte(s) @ 0x0000000000402011 by PC 0x000000000040102e

16 0: 1550019 write 1 byte(s) @ 0x0000000000402003 by PC 0x000000000040102e

17 0: 1550019 read 1 byte(s) @ 0x0000000000402012 by PC 0x000000000040102e

18 0: 1550019 write 1 byte(s) @ 0x0000000000402004 by PC 0x000000000040102e

19 0: 1550019 read 4 byte(s) @ 0x0000000000402ffd by PC 0x0000000000401038

20 0: 1550019 read 4 byte(s) @ 0x0000000000402fff by PC 0x000000000040103b

21 0: 1550019 <marker: timestamp 13361227035103508>

22 0: 1550019 <marker: tid 1550019 on core 6>

23 0: 1550019 <marker: instruction count 107>

24 0: 1550019 <marker: instruction count 107>

25 0: 1550019 <thread 1550019 exited>

View tool results:

0 : total instructions

On Sun, May 26, 2024 at 1:49 PM Gandholi Sarat <gandho...@gmail.com> wrote:

I want to have a offline trace with only memory records, is there any way to restrict drmemtrace to only trace memory records specifically or is a custom tool required?

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