systemd-Define-__NR_kcmp-if-it-is-not-defined.patch

From 4b397a131461ebb574aeffa0826b1d314add3d49 Mon Sep 17 00:00:00 2001
From: Igor Zhbanov <igor.zhbanov@jolla.com>
Date: Sat, 5 Sep 2015 17:54:48 +0000
Subject: [systemd] Define __NR_kcmp if it is not defined. Contributes to JB#32104

Systemd can handle a stiuation when kcmp sytem call is not enabled in
the kernel by checking for ENOSYS. But it needs to have syscall number
anyway so define it for i386, x86_64 and arm platforms if it is not
defined.

Signed-off-by: Igor Zhbanov <igor.zhbanov@jolla.com>
---
 src/basic/missing.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/basic/missing.h b/src/basic/missing.h
index dc1f244..21ea0b4 100644
--- a/src/basic/missing_syscall.h
+++ b/src/basic/missing_syscall.h
@@ -257,6 +257,18 @@ static inline int missing_renameat2(int 
 /* ======================================================================= */
 
 #if !HAVE_KCMP
+#ifndef __NR_kcmp
+#  if defined __x86_64__
+#    define __NR_kcmp 349
+#  elif defined __arm__
+#    define __NR_kcmp 378
+#  elif defined __i386__
+#    define __NR_kcmp 312
+#  else
+#    warning "__NR_kcmp unknown for your architecture"
+#  endif
+#endif
+
 static inline int missing_kcmp(pid_t pid1, pid_t pid2, int type, unsigned long idx1, unsigned long idx2) {
 #  ifdef __NR_kcmp
         return syscall(__NR_kcmp, pid1, pid2, type, idx1, idx2);