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Question about sysdeps/unix/sysv/linux/fcntl.c

Hi all,

I have a issue on ltp relevant glibc.

https://github.com/linux-test-project/ltp/issues/395


Could someone tell how to fix it?
I also want to know that under what circumstances should we use fcntl and fcntl64.
Under what circumstances are the __OFF_T_MATCHES_OFF64_T and _FILE_OFFSET_BITS defined?
Why does 32-bit arch calls fcntl64, but 64-bit arch calls fcntl traced by strace tool? 


Thanks,

Hongzhi
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