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fix segmentfault when exec dtagnames or prefcnt without any args #36

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xuchunmei000 wants to merge 1 commit into acmel:master from xuchunmei000:master

xuchunmei000 commented Jan 9, 2023

while exec dtagnames or prefnct without any args, will get segement fault result.

# prefcnt
Segmentation fault (core dumped)

gdb info

Program terminated with signal SIGSEGV, Segmentation fault.
#0  cus__load_btf (cus=0x55eb480132a0, conf=0x0, filename=0x7fddd3215241 "/sys/kernel/btf/vmlinux")


          fix segmentfault when exec dtagnames or prefcnt without any args

2c653ee

Signed-off-by: Chunmei Xu <[email protected]>

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