On Sat, Mar 18, 2017 at 03:47:18PM +0100, Mark Kettenis wrote: > Just like we did on other architectures. > > ok?
guenther@ had the same diff (but he also removed the movn x1), which looked good to me as well. Basically still ok patrick@. ;) > > > Index: lib/libc/arch/aarch64/sys/cerror.S > =================================================================== > RCS file: /cvs/src/lib/libc/arch/aarch64/sys/cerror.S,v > retrieving revision 1.2 > diff -u -p -r1.2 cerror.S > --- lib/libc/arch/aarch64/sys/cerror.S 25 Jan 2017 10:43:37 -0000 > 1.2 > +++ lib/libc/arch/aarch64/sys/cerror.S 18 Mar 2017 14:45:58 -0000 > @@ -28,17 +28,13 @@ > > #include "SYS.h" > > +/* offsetof(struct tib, tib_errno) - offsetof(struct tib, __tib_tcb) */ > +#define TCB_OFFSET_ERRNO (-12) > + > _ENTRY(CERROR) > - stp x0, x30, [sp,#-16]! > - bl _C_LABEL(__errno) > - ldp x1, x30, [sp],#16 > - str w1, [x0] > + mrs x1, tpidr_el0 > + str w0, [x1, #TCB_OFFSET_ERRNO] > movn x0, #0 > movn x1, #0 > ret > END(CERROR) > - > -#if !defined(__PIC__) > -.Lerrno: > - .word errno > -#endif >
