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util-linux: fix static builds with uClibc

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In case of uClibc librt depends on libpthread. In particular
timer_create() function uses pthread_XXX(). That means in case
of static builds it's required to link not librt alone but
together with libpthread. So if checking timer_create function
in librt fails, it is necessary to check if timer_create function
successfully links with "-lpthread".

That issues was spotted in Buldroot autobuilder failures:
http://autobuild.buildroot.net/results/759/75960db671807091fe9155aee9e46a6245e32590/
http://autobuild.buildroot.org/results/112/112e8b85783f5aaba42a937a6eb064317615a21b/

0005-build-sys-use-REALTIME_LIBS.patch is a back-port of upstream
b97edfe731
that won't apply cleanly on v2.27.1

0006-buildsys-fix-static-configuration-and-building.patch was just
applied upstream, see 71a77ca1dd

Both patches must be removed on util-linux version bump.

Signed-off-by: Lada Trimasova <ltrimas@synopsys.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Lada Trimasova 2016-01-27 17:26:16 +03:00 committed by Peter Korsgaard
parent c15f70488b
commit c823c6ee6a
2 changed files with 95 additions and 0 deletions
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41
package/util-linux/0005-build-sys-use-REALTIME_LIBS.patch Normal file
View File

@ -0,0 +1,41 @@
From 9ed54668c15534a3b9d75e8a3e90b72ea426e596 Mon Sep 17 00:00:00 2001
From: Karel Zak <kzak@redhat.com>
Date: Fri, 9 Oct 2015 11:31:49 +0200
Subject: [PATCH] build-sys: use REALTIME_LIBS
Signed-off-by: Karel Zak <kzak@redhat.com>
---
misc-utils/Makemodule.am | 2 +-
sys-utils/Makemodule.am | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/misc-utils/Makemodule.am b/misc-utils/Makemodule.am
index e801611..b96d18b 100644
--- a/misc-utils/Makemodule.am
+++ b/misc-utils/Makemodule.am
@@ -90,7 +90,7 @@ endif
if BUILD_UUIDD
usrsbin_exec_PROGRAMS += uuidd
dist_man_MANS += misc-utils/uuidd.8
-uuidd_LDADD = $(LDADD) libuuid.la libcommon.la
+uuidd_LDADD = $(LDADD) libuuid.la libcommon.la $(REALTIME_LIBS)
uuidd_CFLAGS = $(DAEMON_CFLAGS) $(AM_CFLAGS) -I$(ul_libuuid_incdir)
uuidd_LDFLAGS = $(DAEMON_LDFLAGS) $(AM_LDFLAGS)
uuidd_SOURCES = misc-utils/uuidd.c
diff --git a/sys-utils/Makemodule.am b/sys-utils/Makemodule.am
index f306e65..3d28ff1 100644
--- a/sys-utils/Makemodule.am
+++ b/sys-utils/Makemodule.am
@@ -2,7 +2,7 @@ if BUILD_FLOCK
usrbin_exec_PROGRAMS += flock
dist_man_MANS += sys-utils/flock.1
flock_SOURCES = sys-utils/flock.c lib/monotonic.c lib/timer.c
-flock_LDADD = $(LDADD) libcommon.la -lrt
+flock_LDADD = $(LDADD) libcommon.la $(REALTIME_LIBS)
endif
if BUILD_IPCMK
--
2.5.0

54
package/util-linux/0006-buildsys-fix-static-configuration-and-building.patch Normal file
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@ -0,0 +1,54 @@
From f69e18629d1c91d83ab91314baf5e34088b57f6e Mon Sep 17 00:00:00 2001
From: Lada Trimasova <ltrimas@synopsys.com>
Date: Wed, 27 Jan 2016 16:26:41 +0300
Subject: [PATCH] buildsys: fix static configuration and building
In case of uClibc librt depends on libpthread. In particular
timer_create() function uses pthread_XXX(). That means in case
of static builds it's required to link not librt alone but
together with libpthread. So if checking timer_create function
in librt fails, it is necessary to check if timer_create function
successfully links with "-lpthread".
That issues was spotted in Buldroot autobuilder failures:
http://autobuild.buildroot.net/results/759/75960db671807091fe9155aee9e46a6245e32590/
http://autobuild.buildroot.org/results/112/112e8b85783f5aaba42a937a6eb064317615a21b/
Signed-off-by: Lada Trimasova <ltrimas@synopsys.com>
---
configure.ac | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/configure.ac b/configure.ac
index 56512c0..9392bf2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -382,14 +382,23 @@ AC_CHECK_FUNCS([clock_gettime], [],
AC_SUBST([REALTIME_LIBS])
have_timer="no"
-AC_CHECK_FUNCS([timer_createx],
+AC_CHECK_FUNCS([timer_create],
[have_time="yes"],
[AC_CHECK_LIB([rt], [timer_create], [
have_timer="yes"
REALTIME_LIBS="-lrt"
- ])]
+ ],[
+ AC_SEARCH_LIBS([timer_create], [rt], [
+ AC_MSG_RESULT(yes)
+ have_timer="yes"
+ REALTIME_LIBS="-lrt -lpthread"
+ ],[], [-lpthread]
+ )
+ ])]
)
+AC_SUBST([REALTIME_LIBS])
+
AC_CHECK_MEMBER([struct sockaddr.sa_len],
AC_DEFINE_UNQUOTED([HAVE_SA_LEN], [1], [Define if struct sockaddr contains sa_len]), [],
--
2.5.0