On Fri, Apr 29, 2016 at 07:30:19PM +0200, Arnd Bergmann wrote: > On Friday 29 April 2016 17:01:55 Catalin Marinas wrote: > > On Wed, Apr 06, 2016 at 01:08:46AM +0300, Yury Norov wrote: > > > ILP32 VDSO exports next symbols: > > > __kernel_rt_sigreturn; > > > __kernel_gettimeofday; > > > __kernel_clock_gettime; > > > __kernel_clock_getres; > > > > [...] > > > > > +$(obj)/gettimeofday-ilp32.o: $(src)/../vdso/gettimeofday.S > > > + $(call if_changed_dep,vdso-ilp32as) > > > > Are struct timeval and timespec the same between ILP32 and LP64? For > > example, __kernel_gettimeofday() assumes TVAL_TV_SEC offset defined in > > asm-offsets.c based on the LP64 timeval. > > No, ilp32 uses the generic 32-bit data structures, which have a 32-bit > time_t. I guess that means it can work for little-endian but not > big-endian, right?
I don't think it works for little-endian either. The LP64 struct timeval is 16 bytes while the ILP32 one is 8 bytes. The VDSO gettimeofday is storing 16 bytes (stp x10, x11, [x0, #TVAL_TV_SEC]) -- Catalin
