* Kevin Kofler via devel:

> Florian Weimer wrote:
>> It's not.  It may be a completely different system call.
>
> So now I had a new idea how to figure out what difference the version of 
> glibc we are compiling against can make: track down the symbol version:
> nm -D --with-symbol-versions Downloads/libQt5WebEngineCore.so.5.15.2 | grep 
> '@GLIBC_2\.33'
>                  U fstat64@GLIBC_2.33
>                  U fstatat64@GLIBC_2.33
>                  U lstat64@GLIBC_2.33
>                  U stat64@GLIBC_2.33
>
> So we are getting new symbol versions of the above 4 functions. So now we 
> only need to know what is different between the above and the syscalls 
> presumably used previously:
> nm -D --with-symbol-versions Downloads/libQt5WebEngineCore.so.5.15.1 | grep 
> 'stat\(at\)\?64'
>                  U __fxstat64@GLIBC_2.2.5
>                  U __fxstatat64@GLIBC_2.4
>                  U __lxstat64@GLIBC_2.2.5
>                  U __xstat64@GLIBC_2.2.5
> (That's the version from F33 GA, definitely built against an older glibc.)

Right, and the glibc 2.33 versions all call fstatat64 in the end (system
call number 0x106).  The older x versions call the earlier system calls
(numbers 4, 5, 6).

Thanks,
Florian
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