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authorSebastian Huber <sebastian.huber@embedded-brains.de>2015-07-17 09:16:37 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2015-07-17 09:21:46 +0200
commitb56ddbbd8489c9665a7c396b313de958ce3d5ffd (patch)
tree258e6d7e7558c15019914b28f3a3aa3451c2f862
parente5a79e54d9949c8bdbab03ce800c781b5d859fea (diff)
downloadrtems-b56ddbbd8489c9665a7c396b313de958ce3d5ffd.tar.bz2
doc: Fix SMP task variables section
Diffstat (limited to '')
-rw-r--r--doc/user/smp.t20
1 files changed, 10 insertions, 10 deletions
diff --git a/doc/user/smp.t b/doc/user/smp.t
index c21c8a0791..84372698ea 100644
--- a/doc/user/smp.t
+++ b/doc/user/smp.t
@@ -307,16 +307,16 @@ The Classic API provides three directives to support per task variables. These a
@item @code{@value{DIRPREFIX}task_variable_delete} - Remove per task variable
@end itemize
-As task variables are unsafe for use on SMP systems, the use of these
-services should be eliminated in all software that is to be used in
-an SMP environment. It is recommended that the application developer
-consider the use of POSIX Keys or Thread Local Storage (TLS). POSIX Keys
-are not enabled in all RTEMS configurations.
-
-@b{STATUS}: As of March 2014, some support services in the
-@code{rtems/cpukit} use per task variables. When these uses are
-eliminated, the per task variable directives will be disabled when
-building RTEMS in SMP configuration.
+As task variables are unsafe for use on SMP systems, the use of these services
+must be eliminated in all software that is to be used in an SMP environment.
+The task variables API is disabled on SMP. Its use will lead to compile-time
+and link-time errors. It is recommended that the application developer consider
+the use of POSIX Keys or Thread Local Storage (TLS). POSIX Keys are available
+in all RTEMS configurations. For the availablity of TLS on a particular
+architecture please consult the @cite{RTEMS CPU Architecture Supplement}.
+
+The only remaining user of task variables in the RTEMS code base is the Ada
+support. So basically Ada is not available on RTEMS SMP.
@c
@c