Peace Lee

could you explain more detailed examples that you imagine?

Please share detailed output examples :)

I guess that you wanna get a line including both function entry and return info. Is it right?

What do you think about this? It will only print return context. ``` # ./guider.py btrace yes -c "|filter:RETVAL:BT:0" ```

Yes, it doesn't combine function entry info. But the combined output will not displayed until the target function call is finished(return). is it okay?

What do you think about this output? ``` 0.035559 write(1>/dev/null,0x55d092dbb440,0x2000)[/usr/lib/x86_64-linux-gnu/libc-2.31.so]=0x2000(8192)/0.000021 -> 0x4c40/0x55d092947000 [/usr/bin/yes] 0.035842 write(1>/dev/null,0x55d092dbb440,0x2000)[/usr/lib/x86_64-linux-gnu/libc-2.31.so]=0x2000(8192)/0.000021 -> 0x4c40/0x55d092947000 [/usr/bin/yes] 0.037240 write(1>/dev/null,0x55d092dbb440,0x2000)[/usr/lib/x86_64-linux-gnu/libc-2.31.so]=0x2000(8192)/0.000023 -> 0x4c40/0x55d092947000 [/usr/bin/yes] 0.046022 write(1>/dev/null,0x55d092dbb440,0x2000)[/usr/lib/x86_64-linux-gnu/libc-2.31.so]=0x2000(8192)/0.000021 -> 0x4c40/0x55d092947000 [/usr/bin/yes] 0.052150 write(1>/dev/null,0x55d092dbb440,0x2000)[/usr/lib/x86_64-linux-gnu/libc-2.31.so]=0x2000(8192)/0.000023...

You can check a new feature with a below command. ``` $ ./guider.py btrace yes -c "write|getret" -q completecall 0.037839 write(0x1,0x558c8d83e440,0x2000,0x7f7728567640,0x558c8d83e440,0x7c)[/usr/lib/x86_64-linux-gnu/libc-2.31.so]=0x2000(8192)/0.000010 -> 0x4 0.037859 write(0x1,0x558c8d83e440,0x2000,0x7f7728567640,0x558c8d83e440,0x7c)[/usr/lib/x86_64-linux-gnu/libc-2.31.so]=0x2000(8192)/0.000010 -> 0x4 0.037879 write(0x1,0x558c8d83e440,0x2000,0x7f7728567640,0x558c8d83e440,0x7c)[/usr/lib/x86_64-linux-gnu/libc-2.31.so]=0x2000(8192)/0.000010 ->...

is it okay without -q option? could you share your program binary?

I tested on my PC using a below command. ``` root@osdc:/home/peacelee/guider/guider# ./guider.py btrace "python -c \"import os;os.statvfs('.')\"" -c "statvfs*|getret" ... 0.055871 statvfs@GLIBC_2.2.5/0x7f3773652bd0(0x7f37730464d0,0x7ffdbdb5ead0,0x0,0x4134e3,0x0,0x38) [/usr/lib/x86_64-linux-gnu/libc-2.31.so] 0.055882 statvfs@GLIBC_2.2.5[RET]=0x0(0)/0.000012 -> 0x45e6e8/0x400000 [/usr/bin/python3.8] 0.058732 +++...

>Both Python command examples succeeded also on my system (in principle). I wonder why the output was truncated for the combined analysis data by such test runs. Should any line...