Re: switching ARC to 64-bit time_t (Re: [RFC v6 07/23] RISC-V: Use 64-bit time_t and off_t for RV32 and RV64)

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Hi Andreas,

> On Feb 24 2020, Lukasz Majewski wrote:
> 
> >> elf/check-localplt complains about the newly added symbols
> >> 
> >> Extra PLT reference: libc.so: __lutimes64
> >> Extra PLT reference: libc.so: __wait4_time64
> >> Extra PLT reference: libc.so: __setitimer64
> >> Extra PLT reference: libc.so: __utime64
> >> Extra PLT reference: libc.so: __timerfd_gettime64
> >> Extra PLT reference: libc.so: __clock_settime64
> >> Extra PLT reference: libc.so: __utimes64
> >> Extra PLT reference: libc.so: __gettimeofday64
> >> Extra PLT reference: libc.so: __clock_gettime64
> >> Extra PLT reference: libc.so: __futimesat64
> >> Extra PLT reference: libc.so: __clock_getres64
> >> Extra PLT reference: libc.so: __futimes64
> >> Extra PLT reference: libc.so: __futimens64
> >> Extra PLT reference: libc.so: __utimensat64
> >> Extra PLT reference: libc.so: __getrusage64
> >> Extra PLT reference: libc.so: __timespec_get64
> >> Extra PLT reference: libc.so: __getitimer64
> >> Extra PLT reference: libc.so: __ppoll64
> >> Extra PLT reference: libc.so: __timerfd_settime64
> >> Extra PLT reference: libc.so: __clock_nanosleep_time64
> >> Extra PLT reference: libc.so: __sched_rr_get_interval64
> >> Extra PLT reference: libc.so: __settimeofday64
> >> Extra PLT reference: librt.so: __timer_gettime64
> >> Extra PLT reference: librt.so: __mq_timedreceive_time64
> >> Extra PLT reference: librt.so: __mq_timedsend_time64
> >> Extra PLT reference: librt.so: __timer_settime64
> >>   
> >
> > The above problems are somewhat expected. Those are redirected
> > symbols, which are exported as GLIBC_PRIVATE in several Versions
> > files.
> >
> > I do guess that we will have a consensus if we add those as a
> > "normal" exported symbols or keep them "private".  
> 
> They need to grow hidden aliases.

Could you explain it a bit more?



If I add those functions as hidden_alias then those would be accessible
inside glibc without PLT, but will not be exported (and redirection for
Y2038 will not work).



> 
> Andreas.
> 




Best regards,

Lukasz Majewski

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