On 4/6/20 11:54 AM, Vineet Gupta wrote: > On 3/31/20 2:47 PM, Vineet Gupta via Libc-alpha wrote: >> From: Vineet Gupta via Libc-alpha <libc-alpha@xxxxxxxxxxxxxx> >> >> An older asm-generic syscall ABI may have kernel provide 32-bit >> time syscalls, so undef them to not mix 32/64 in 64-bit time regime. >> >> Signed-off-by: Vineet Gupta <vgupta@xxxxxxxxxxxx> > > ping ! ping ^2 ! > >> --- >> Changes since v2 >> - Made x32 safe >> >> Changes since v1 >> - don't redirect these to 64-bit variants >> --- >> sysdeps/unix/sysv/linux/generic/sysdep.h | 24 ++++++++++++++++++++++++ >> 1 file changed, 24 insertions(+) >> >> diff --git a/sysdeps/unix/sysv/linux/generic/sysdep.h b/sysdeps/unix/sysv/linux/generic/sysdep.h >> index 40b4b955ca1b..b83e17e1c9d1 100644 >> --- a/sysdeps/unix/sysv/linux/generic/sysdep.h >> +++ b/sysdeps/unix/sysv/linux/generic/sysdep.h >> @@ -17,6 +17,7 @@ >> <https://www.gnu.org/licenses/>. */ >> >> #include <bits/wordsize.h> >> +#include <bits/timesize.h> >> #include <kernel-features.h> >> #include <sysdeps/unix/sysdep.h> >> #include <sysdeps/unix/sysv/linux/sysdep.h> >> @@ -25,3 +26,26 @@ >> #ifdef __NR_llseek >> # define __NR__llseek __NR_llseek >> #endif >> + >> +#if (__TIMESIZE == 64 && __WORDSIZE == 32 \ >> + && (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32)) >> + >> +/* Don't provide 32-bit time syscalls even if the kernel ABI provides >> + them (Older variants of asm-generic ABIs e.g. ARC). */ >> + >> +# undef __NR_futex >> +# undef __NR_rt_sigtimedwait >> +# undef __NR_ppoll >> +# undef __NR_utimensat >> +# undef __NR_pselect6 >> +# undef __NR_recvmmsg >> +# undef __NR_semtimedop >> +# undef __NR_mq_timedreceive >> +# undef __NR_mq_timedsend >> +# undef __NR_clock_getres >> +# undef __NR_timerfd_settime >> +# undef __NR_timerfd_gettime >> +# undef __NR_sched_rr_get_interval >> +# undef __NR_clock_adjtime >> + >> +#endif >> _______________________________________________ linux-snps-arc mailing list linux-snps-arc@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-snps-arc
