Fix build failures on ppc64 (#1310800)

Resolves: #1310800

0001-time-util-map-ALARM-clockids-to-non-ALARM-clockids-i.patch

@@ -0,0 +1,81 @@
+From 2ed3d130986501e1db27d57be424d5fd82755ca5 Mon Sep 17 00:00:00 2001
+From: Lennart Poettering <lennart@poettering.net>
+Date: Fri, 12 Feb 2016 21:29:01 +0100
+Subject: [PATCH] time-util: map ALARM clockids to non-ALARM clockids in now()
+
+Fixes: #2597
+(cherry picked from commit 32c1f5a57998f2a9e1992af006b83e39e3155830)
+
+Resolves: #1310800
+---
+ src/basic/time-util.c              | 24 ++++++++++++++++++++++--
+ src/libsystemd/sd-event/sd-event.c |  6 +++++-
+ 2 files changed, 27 insertions(+), 3 deletions(-)
+
+diff --git a/src/basic/time-util.c b/src/basic/time-util.c
+index 3973850..510f018 100644
+--- a/src/basic/time-util.c
++++ b/src/basic/time-util.c
+@@ -42,10 +42,30 @@
+ 
+ static nsec_t timespec_load_nsec(const struct timespec *ts);
+ 
++static clockid_t map_clock_id(clockid_t c) {
++
++        /* Some more exotic archs (s390, ppc, …) lack the "ALARM" flavour of the clocks. Thus, clock_gettime() will
++         * fail for them. Since they are essentially the same as their non-ALARM pendants (their only difference is
++         * when timers are set on them), let's just map them accordingly. This way, we can get the correct time even on
++         * those archs. */
++
++        switch (c) {
++
++        case CLOCK_BOOTTIME_ALARM:
++                return CLOCK_BOOTTIME;
++
++        case CLOCK_REALTIME_ALARM:
++                return CLOCK_REALTIME;
++
++        default:
++                return c;
++        }
++}
++
+ usec_t now(clockid_t clock_id) {
+         struct timespec ts;
+ 
+-        assert_se(clock_gettime(clock_id, &ts) == 0);
++        assert_se(clock_gettime(map_clock_id(clock_id), &ts) == 0);
+ 
+         return timespec_load(&ts);
+ }
+@@ -53,7 +73,7 @@ usec_t now(clockid_t clock_id) {
+ nsec_t now_nsec(clockid_t clock_id) {
+         struct timespec ts;
+ 
+-        assert_se(clock_gettime(clock_id, &ts) == 0);
++        assert_se(clock_gettime(map_clock_id(clock_id), &ts) == 0);
+ 
+         return timespec_load_nsec(&ts);
+ }
+diff --git a/src/libsystemd/sd-event/sd-event.c b/src/libsystemd/sd-event/sd-event.c
+index deef6ba..2b46a1f 100644
+--- a/src/libsystemd/sd-event/sd-event.c
++++ b/src/libsystemd/sd-event/sd-event.c
+@@ -2780,9 +2780,13 @@ _public_ int sd_event_now(sd_event *e, clockid_t clock, uint64_t *usec) {
+                 *usec = e->timestamp.monotonic;
+                 break;
+ 
+-        default:
++        case CLOCK_BOOTTIME:
++        case CLOCK_BOOTTIME_ALARM:
+                 *usec = e->timestamp_boottime;
+                 break;
++
++        default:
++                assert_not_reached("Unknown clock?");
+         }
+ 
+         return 0;
+-- 
+2.5.0
+

systemd.spec

@@ -13,7 +13,7 @@
 Name:           systemd
 Url:            http://www.freedesktop.org/wiki/Software/systemd
 Version:        229
-Release:        2%{?gitcommit:.git%{gitcommitshort}}%{?dist}
+Release:        3%{?gitcommit:.git%{gitcommitshort}}%{?dist}
 # For a breakdown of the licensing, see README
 License:        LGPLv2+ and MIT and GPLv2+
 Summary:        A System and Service Manager
@@ -34,6 +34,8 @@ Source7:        systemd-journal-remote.xml
 Source8:        systemd-journal-gatewayd.xml
 Source9:        20-yama-ptrace.conf
 
+Patch0001:      0001-time-util-map-ALARM-clockids-to-non-ALARM-clockids-i.patch
+
 Patch0999:      0999-Add-a-workaround-for-linux-net-if.h-conflict.patch
 
 # kernel-install patch for grubby, drop if grubby is obsolete
@@ -806,6 +808,9 @@ getent passwd systemd-journal-upload >/dev/null 2>&1 || useradd -r -l -g systemd
 /usr/lib/firewalld/services/*
 
 %changelog
+* Tue Feb 23 2016 Jan Synáček <jsynacek@redhat.com> - 229-3
+- Fix build failures on ppc64 (#1310800)
+
 * Tue Feb 16 2016 Dennis Gilmore <dennis@ausil.us> - 229-2
 - revert: fixed kernel-install for copying files for grubby
 Resolves: rhbz#1299019