From: Adhemerval Zanella Netto Date: Wed, 19 Oct 2022 22:14:14 +0000 (-0300) Subject: Linux: consolidate readlink implementation X-Git-Tag: glibc-2.37~109 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2fc81f6ca56f1df5323fc849f3f8dc40f38fc5b2;p=thirdparty%2Fglibc.git Linux: consolidate readlink implementation Use readlink syscall if defined, otherwise readlinkat. Checked on x86_64-linux-gnu. Reviewed-by: Carlos O'Donell Tested-by: Carlos O'Donell --- diff --git a/sysdeps/unix/sysv/linux/generic/readlink.c b/sysdeps/unix/sysv/linux/readlink.c similarity index 80% rename from sysdeps/unix/sysv/linux/generic/readlink.c rename to sysdeps/unix/sysv/linux/readlink.c index 9f25811a354..083dcaf502d 100644 --- a/sysdeps/unix/sysv/linux/generic/readlink.c +++ b/sysdeps/unix/sysv/linux/readlink.c @@ -1,4 +1,5 @@ -/* Copyright (C) 2011-2022 Free Software Foundation, Inc. +/* Read value of a symbolic link. Linux version. + Copyright (C) 2011-2022 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -25,6 +26,10 @@ ssize_t __readlink (const char *path, char *buf, size_t len) { - return INLINE_SYSCALL (readlinkat, 4, AT_FDCWD, path, buf, len); +#ifdef __NR_readlink + return INLINE_SYSCALL_CALL (readlink, path, buf, len); +#else + return INLINE_SYSCALL_CALL (readlinkat, AT_FDCWD, path, buf, len); +#endif } weak_alias (__readlink, readlink)