From: Florian Weimer <fweimer@redhat.com>
Date: Thu, 5 Mar 2020 12:27:53 +0000 (+0100)
Subject: Linux: Use __fstatat64 in fchmodat implementation
X-Git-Tag: glibc-2.32~529
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e5244cd88a5414c964b32bb95cf60fc9c1958a5f;p=thirdparty%2Fglibc.git

Linux: Use __fstatat64 in fchmodat implementation

fstatat64 depends on inlining to produce the desired __fxstatat64
call, which does not happen with -Os, leading to a link failure
with an undefined reference to fstatat64.  __fxstatat64 has a macro
definition in include/sys/stat.h and thus avoids the problem.
---

diff --git a/sysdeps/unix/sysv/linux/fchmodat.c b/sysdeps/unix/sysv/linux/fchmodat.c
index 17eca54051e..5531f1aa6f9 100644
--- a/sysdeps/unix/sysv/linux/fchmodat.c
+++ b/sysdeps/unix/sysv/linux/fchmodat.c
@@ -48,7 +48,7 @@ fchmodat (int fd, const char *file, mode_t mode, int flag)
       /* Use fstatat because fstat does not work on O_PATH descriptors
 	 before Linux 3.6.  */
       struct stat64 st;
-      if (fstatat64 (pathfd, "", &st, AT_EMPTY_PATH) != 0)
+      if (__fstatat64 (pathfd, "", &st, AT_EMPTY_PATH) != 0)
 	{
 	  __close_nocancel (pathfd);
 	  return -1;