[Xenomai-core] [PATCH 4/6] Mark libs nodlopen on initial-exec TLS

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From: Jan Kiszka <jan.kiszka@domain.hid>
To: xenomai@xenomai.org
Subject: [Xenomai-core] [PATCH 4/6] Mark libs nodlopen on initial-exec TLS
Date: Mon, 15 Dec 2008 15:34:36 +0100	[thread overview]
Message-ID: <20081215143436.15493.98981.stgit@domain.hid> (raw)
In-Reply-To: <20081215143435.15493.94798.stgit@domain.hid>

Mark libs with nodlopen if initial-exec __thread variables are used
because dlopen and this TLS model are in conflict.

Signed-off-by: Jan Kiszka <jan.kiszka@domain.hid>
---

 configure.in                  |    3 +++
 src/skins/native/Makefile.am  |    2 +-
 src/skins/posix/Makefile.am   |    2 +-
 src/skins/psos+/Makefile.am   |    2 +-
 src/skins/rtai/Makefile.am    |    2 +-
 src/skins/rtdm/Makefile.am    |    2 +-
 src/skins/uitron/Makefile.am  |    2 +-
 src/skins/vrtx/Makefile.am    |    2 +-
 src/skins/vxworks/Makefile.am |    2 +-
 9 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/configure.in b/configure.in
index 0a03057..6558ebf 100644
--- a/configure.in
+++ b/configure.in
@@ -764,6 +764,7 @@ LIBS="$LIBS -lrt"
 AC_CHECK_FUNCS([shm_open shm_unlink])
 LIBS="$save_LIBS"
 
+XENO_DLOPEN_CONSTRAINT=
 AC_ARG_WITH([__thread],
 	    AC_HELP_STRING([--without-__thread],
 			   [do not use TLS features (allows for dlopen'ing Xenomai libs)]),
@@ -784,6 +785,7 @@ EOF
 	rm -f conftest*])
 	if test "$libc_cv_gcc___thread" = yes; then
 		AC_DEFINE(HAVE___THREAD,1,[config])
+		XENO_DLOPEN_CONSTRAINT="-Wl,-z -Wl,nodlopen"
 	fi
 fi
 
@@ -805,6 +807,7 @@ AC_SUBST(XENO_USER_CFLAGS)
 AC_SUBST(XENO_USER_LDFLAGS)
 AC_SUBST(XENO_USER_APP_CFLAGS)
 AC_SUBST(XENO_USER_APP_LDFLAGS)
+AC_SUBST(XENO_DLOPEN_CONSTRAINT)
 AC_SUBST([CONFIG_STATUS_DEPENDENCIES],
         ['$(top_srcdir)/src/skins/posix/posix.wrappers'])
 AC_SUBST(XENO_POSIX_WRAPPERS)
diff --git a/src/skins/native/Makefile.am b/src/skins/native/Makefile.am
index a1f61d9..3497f90 100644
--- a/src/skins/native/Makefile.am
+++ b/src/skins/native/Makefile.am
@@ -1,6 +1,6 @@
 lib_LTLIBRARIES = libnative.la
 
-libnative_la_LDFLAGS = -version-info 3:0:0 -lpthread
+libnative_la_LDFLAGS = @XENO_DLOPEN_CONSTRAINT@ -version-info 3:0:0 -lpthread
 
 libnative_la_SOURCES = \
 	alarm.c \
diff --git a/src/skins/posix/Makefile.am b/src/skins/posix/Makefile.am
index 2d42a28..d6a0912 100644
--- a/src/skins/posix/Makefile.am
+++ b/src/skins/posix/Makefile.am
@@ -4,7 +4,7 @@ lib_LTLIBRARIES = libpthread_rt.la
 
 CPPFLAGS+=-I$(top_srcdir)/ksrc/skins
 
-libpthread_rt_la_LDFLAGS = -version-info 1:0:0 -lpthread
+libpthread_rt_la_LDFLAGS = @XENO_DLOPEN_CONSTRAINT@ -version-info 1:0:0 -lpthread
 
 libpthread_rt_la_SOURCES = \
 	init.c \
diff --git a/src/skins/psos+/Makefile.am b/src/skins/psos+/Makefile.am
index a579ebe..3e4464d 100644
--- a/src/skins/psos+/Makefile.am
+++ b/src/skins/psos+/Makefile.am
@@ -1,6 +1,6 @@
 lib_LTLIBRARIES = libpsos.la
 
-libpsos_la_LDFLAGS = -version-info 0:0:0 -lpthread
+libpsos_la_LDFLAGS = @XENO_DLOPEN_CONSTRAINT@ -version-info 0:0:0 -lpthread
 
 libpsos_la_SOURCES = \
 	asr.c \
diff --git a/src/skins/rtai/Makefile.am b/src/skins/rtai/Makefile.am
index 8a92859..bae83c1 100644
--- a/src/skins/rtai/Makefile.am
+++ b/src/skins/rtai/Makefile.am
@@ -1,6 +1,6 @@
 lib_LTLIBRARIES = librtai.la
 
-librtai_la_LDFLAGS = -version-info 0:0:0
+librtai_la_LDFLAGS = @XENO_DLOPEN_CONSTRAINT@ -version-info 0:0:0
 
 librtai_la_SOURCES = init.c \
 	shm.c
diff --git a/src/skins/rtdm/Makefile.am b/src/skins/rtdm/Makefile.am
index 00099be..73f97cf 100644
--- a/src/skins/rtdm/Makefile.am
+++ b/src/skins/rtdm/Makefile.am
@@ -1,6 +1,6 @@
 lib_LTLIBRARIES = librtdm.la
 
-librtdm_la_LDFLAGS = -version-info 1:0:0 -lpthread
+librtdm_la_LDFLAGS = @XENO_DLOPEN_CONSTRAINT@ -version-info 1:0:0 -lpthread
 
 librtdm_la_SOURCES = \
 	core.c \
diff --git a/src/skins/uitron/Makefile.am b/src/skins/uitron/Makefile.am
index 3736a9b..a7ff65a 100644
--- a/src/skins/uitron/Makefile.am
+++ b/src/skins/uitron/Makefile.am
@@ -1,6 +1,6 @@
 lib_LTLIBRARIES = libuitron.la
 
-libuitron_la_LDFLAGS = -version-info 0:0:0 -lpthread
+libuitron_la_LDFLAGS = @XENO_DLOPEN_CONSTRAINT@ -version-info 0:0:0 -lpthread
 
 libuitron_la_SOURCES = \
 	flag.c \
diff --git a/src/skins/vrtx/Makefile.am b/src/skins/vrtx/Makefile.am
index a5517f3..6233548 100644
--- a/src/skins/vrtx/Makefile.am
+++ b/src/skins/vrtx/Makefile.am
@@ -1,6 +1,6 @@
 lib_LTLIBRARIES = libvrtx.la
 
-libvrtx_la_LDFLAGS = -version-info 0:0:0 -lpthread
+libvrtx_la_LDFLAGS = @XENO_DLOPEN_CONSTRAINT@ -version-info 0:0:0 -lpthread
 
 libvrtx_la_SOURCES = \
 	event.c \
diff --git a/src/skins/vxworks/Makefile.am b/src/skins/vxworks/Makefile.am
index 7a57055..b7b74e6 100644
--- a/src/skins/vxworks/Makefile.am
+++ b/src/skins/vxworks/Makefile.am
@@ -1,6 +1,6 @@
 lib_LTLIBRARIES = libvxworks.la
 
-libvxworks_la_LDFLAGS = -version-info 1:0:0 -lpthread
+libvxworks_la_LDFLAGS = @XENO_DLOPEN_CONSTRAINT@ -version-info 1:0:0 -lpthread
 
 libvxworks_la_SOURCES = \
 	errnoLib.c \

next prev parent reply	other threads:[~2008-12-15 14:34 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-15 14:34 [Xenomai-core] [PATCH 0/6] Various fixes and cleanups Jan Kiszka
2008-12-15 14:34 ` Jan Kiszka [this message]
2008-12-15 14:34 ` [Xenomai-core] [PATCH 2/6] POSIX: Fix initialization of SCHED_RR threads Jan Kiszka
2008-12-15 14:34 ` [Xenomai-core] [PATCH 1/6] Handle priority changes of SCHED_RR tasks Jan Kiszka
2008-12-15 14:44   ` Gilles Chanteperdrix
2008-12-15 14:54     ` Jan Kiszka
2008-12-15 14:34 ` [Xenomai-core] [PATCH 3/6] POSIX: Optimize pthread_setschedparam fast path Jan Kiszka
2008-12-15 14:46   ` Gilles Chanteperdrix
2008-12-15 14:50     ` Jan Kiszka
2008-12-15 15:01       ` Gilles Chanteperdrix
2008-12-15 15:08         ` Jan Kiszka
2008-12-15 14:34 ` [Xenomai-core] [PATCH 6/6] POSIX: Do not auto-shadow main with dlopen enabled Jan Kiszka
2008-12-15 14:34 ` [Xenomai-core] [PATCH 5/6] Replace --without-__tread with --enable-dlopen-skins Jan Kiszka
2008-12-15 16:25 ` [Xenomai-core] [PATCH 0/6] Various fixes and cleanups Philippe Gerum
2008-12-15 16:34   ` Jan Kiszka
2008-12-15 16:50     ` Philippe Gerum

find likely ancestor, descendant, or conflicting patches for this message:
( dfblob:0a03057 dfblob:6558ebf dfblob:a1f61d9 dfblob:3497f90
dfblob:2d42a28 dfblob:d6a0912 dfblob:a579ebe dfblob:3e4464d
dfblob:8a92859 dfblob:bae83c1 dfblob:00099be dfblob:73f97cf
dfblob:3736a9b dfblob:a7ff65a dfblob:a5517f3 dfblob:6233548
dfblob:7a57055 dfblob:b7b74e6 )
 OR (
bs:"[Xenomai-core] [PATCH 4/6] Mark libs nodlopen on initial-exec TLS" )
	(help)

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