struct.error: unpack requires a buffer of 8 bytes in extract ground truth extractBB.py

[NobinPegasus]

When using the extract ground truth: python3 ../../extract_gt/extractBB.py -b test_switch -m test_switch.gt -o /tmp/gtBlock_test_switch.pb
It gives the following error. How to fix it?

INFO:Found Gaps#0 in section .text, between 0x400530 - 0x4005d0, size: 160
INFO:Found Gaps#1 in section .text, between 0x400770 - 0x4007e2
INFO:Find the gap(0x400530 - 0x4005d0) behind basic block 0x400500, size is 48, padding is 5
INFO:Find the gap(0x400770 - 0x4007e2) behind basic block 0x40075d, size is 19, padding is 10
INFO:fi1: 0x400671, entry number is 14, its parent is 0x400669
INFO:Jump table base is 0x0
INFO:The begin Addr is 0x400671
INFO:Now instruction is from 0x400669 to 0x4
INFO:Now instruction is from 0x40066d to 0x8
INFO:Now instruction is from 0x400675 to 0x2
INFO:[indirect instruction] 0x400675: jmp rcx
ERROR:Table base 0x0 not in fixups, please check!
INFO:entry size is 0x8
Traceback (most recent call last):
File "/gt_x86/x86-sok/extract_gt/extractBB.py", line 1976, in
dumpGroundTruth(essInfo, module, outFile, options.binary, options.split)
File "/gt_x86/x86-sok/extract_gt/extractBB.py", line 1216, in dumpGroundTruth
jumpTable = scanJumpTable(essInfo, binary)
File "/gt_x86/x86-sok/extract_gt/extractBB.py", line 1129, in scanJumpTable
successors = readTableEntries(table_base, fi.numJTEntries, tbl_size, binary, entry_added_base)
File "/gt_x86/x86-sok/extract_gt/extractBB.py", line 991, in readTableEntries
entryContent = struct.unpack(unpackStr, entry)
struct.error: unpack requires a buffer of 8 bytes

I was using the test_switch file.
I am using the docker image provided in the repo hompage

[bin2415]

Hello, I can't reproduce your problem. Could you help to share the test_switch binary?

[NobinPegasus]

Github don't allow to share binary file.
How can I share that?

[NobinPegasus]

https://drive.google.com/file/d/19UVPEnetUS9xmAo7_W6QtcBDAeNwgT13/view?usp=sharing

Here's the file

[bin2415]

The size of the jump table is not correct. Could you please list the steps of building the binary?

[NobinPegasus]

I just used the way you mentioned in the exampled guide.

Below are the given command I ran to build the binary and get the error

root@5e8606df7f20:/gt_x86/test# source ../gcc64.rc

root@5e8606df7f20:/gt_x86/test# export CFLAGS="-O0 $CFLAGS"

root@5e8606df7f20:/gt_x86/test# $CC $CFLAGS -o test_switch test_switch.c

root@5e8606df7f20:/gt_x86/test#  objcopy --dump-section .rand=test_switch.gt.gz test_switch && gzip -d test_switch.gt.gz

root@5e8606df7f20:/gt_x86/test# python3 ../../extract_gt/extractBB.py -b test_switch -m test_switch.gt -o /tmp/gtBlock_test_switch.pb