From bd5a7b22d32d47a7d3b9ae0deb6e2d196025e57c Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Sat, 6 Mar 2021 14:48:56 -0800
Subject: [PATCH] nativesdk-glibc: Fall back to faccessat on faccess2 returns
 EPERM

Fedora-specific workaround for systemd-nspawn

Upstream-Status: Inappropriate [Distro Specific]

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 sysdeps/unix/sysv/linux/faccessat.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sysdeps/unix/sysv/linux/faccessat.c b/sysdeps/unix/sysv/linux/faccessat.c
index edb22ebce6..b67684a3ba 100644
--- a/sysdeps/unix/sysv/linux/faccessat.c
+++ b/sysdeps/unix/sysv/linux/faccessat.c
@@ -30,7 +30,11 @@ __faccessat (int fd, const char *file, int mode, int flag)
 #if __ASSUME_FACCESSAT2
   return ret;
 #else
-  if (ret == 0 || errno != ENOSYS)
+  /* Fedora-specific workaround:
+     As a workround for a broken systemd-nspawn that returns
+     EPERM when a syscall is not allowed instead of ENOSYS
+     we must check for EPERM here and fall back to faccessat.  */
+  if (ret == 0 || !(errno == ENOSYS || errno == EPERM))
     return ret;
 
   if (flag & ~(AT_SYMLINK_NOFOLLOW | AT_EACCESS))
