Steve Ellcey a09411756f Use XSTAT_IS_XSTAT64 in generic xstat functions
* sysdeps/unix/sysv/linux/generic/wordsize-32/fxstat.c: Do not define
	fxstat if XSTAT_IS_XSTAT64 is set to non-zero.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/fxstatat.c: Ditto for
	fxstatat.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat.c: Ditto for
	lxstat.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/xstat.c: Ditto for xstat.

	* sysdeps/unix/sysv/linux/generic/wordsize-32/fxstat64.c: New file.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/fxstatat64.c: New file.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat64.c: Make __lxstat
	an alias of __lxstat64 if XSTAT_IS_XSTAT64 is set to non-zero.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/xstat64.c: Ditto for
	__xstat.
2016-11-29 08:06:47 -08:00
..
2016-11-21 08:23:12 -08:00
2015-03-19 13:33:01 -04:00
2016-11-21 08:23:12 -08:00

This hierarchy supports Linux systems using the new
asm-generic/unistd.h, which removes many familiar old syscalls.  For
example, to implement open(), newer Linux architectures require glibc
to invoke the __NR_openat syscall with AT_FDCWD.  This hierarchy
provides all those implementations.

It also provides support for 32-bit platforms using the 64-bit kernel
syscall APIs, as the 32-bit ones are no longer provided.  Note that
newer ILP32 environments (x32 or AArch64:ILP32, for example) are
converting to use more 64-bit types in kernel syscalls, so that aspect
of this support is in more flux as of this writing.