Mateusz Guzik 0573d0a9b8 vfs: add realpathat syscall ... realpath(3) is used a lot e.g., by clang and is a major source of getcwd and fstatat calls. This can be done more efficiently in the kernel. This works by performing a regular lookup while saving the name and found parent directory. If the terminal vnode is a directory we can resolve it using usual means. Otherwise we can use the name saved by lookup and resolve the parent. See the review for sample syscall counts. Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D23574		2020-02-20 16:58:19 +00:00
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libc_private.h
Makefile.inc	vfs: add realpathat syscall	2020-02-20 16:58:19 +00:00
namespace.h
rtld_libc.c
rtld_libc.h
un-namespace.h