Hi, this patch aims at avoiding to select unneeded nucleus features if no user is requiring it in the skins. Particularly, it addresses the nucleus registry and the pipes.
I have spent no effort on 2.4 yet as I first want to wait for comments. Furthermore, 2.4. is lacking "select", so the feature selection has to remain manually there anyway. Jan
Index: ksrc/nucleus/Kconfig
===================================================================
--- ksrc/nucleus/Kconfig (revision 924)
+++ ksrc/nucleus/Kconfig (working copy)
@@ -32,15 +32,7 @@ config XENO_OPT_SECURITY_ACCESS
think twice before switching this off.
config XENO_OPT_PIPE
- bool "Message pipes"
- default y
- help
-
- Message pipes are bi-directional FIFO communication
- channels allowing data exchange between real-time kernel
- threads and regular user-space processes. Pipes natively
- preserve message boundaries, but can also be used in byte
- streaming mode from kernel to user-space.
+ bool
config XENO_OPT_PIPE_NRDEV
int "Number of pipe devices"
@@ -48,14 +40,23 @@ config XENO_OPT_PIPE_NRDEV
default 32
help
+ Message pipes are bi-directional FIFO communication
+ channels allowing data exchange between real-time kernel
+ threads and regular user-space processes. Pipes natively
+ preserve message boundaries, but can also be used in byte
+ streaming mode from kernel to user-space.
+
This option sets the maximum number of pipe devices supported
in the system. Pipe devices are named /dev/rtpN where N is a
device minor number ranging from 0 to XENO_OPT_PIPE_NRDEV - 1.
config XENO_OPT_REGISTRY
bool
- prompt "Registry support" if !XENO_OPT_PERVASIVE
- default y
+
+config XENO_OPT_REGISTRY_NRSLOTS
+ int "Number of registry slots"
+ depends on XENO_OPT_REGISTRY
+ default 512
help
The registry is used by Xenomai skins to bind real-time
@@ -63,12 +64,6 @@ config XENO_OPT_REGISTRY
can be further retrieved and shared by real-time applications
regardless of their runtime space (i.e. kernel or user). Each
named object occupies a registry slot.
-
-config XENO_OPT_REGISTRY_NRSLOTS
- int "Number of registry slots"
- depends on XENO_OPT_REGISTRY
- default 512
- help
This option sets the maximum number of real-time objects the
registry can handle. All skins using the registry share this
Index: ksrc/skins/vrtx/Kconfig
===================================================================
--- ksrc/skins/vrtx/Kconfig (revision 924)
+++ ksrc/skins/vrtx/Kconfig (working copy)
@@ -1,7 +1,7 @@
config XENO_SKIN_VRTX
depends on XENO_OPT_NUCLEUS
tristate "VRTX emulator"
- default n
+ select XENO_OPT_REGISTRY
help
This API skin emulates Mentor Graphics's VRTX operating
Index: ksrc/skins/vxworks/Kconfig
===================================================================
--- ksrc/skins/vxworks/Kconfig (revision 924)
+++ ksrc/skins/vxworks/Kconfig (working copy)
@@ -1,7 +1,7 @@
config XENO_SKIN_VXWORKS
depends on XENO_OPT_NUCLEUS
tristate "VxWorks emulator"
- default n
+ select XENO_OPT_REGISTRY
help
This API skin emulates WindRiver's VxWorks operating system.
Index: ksrc/skins/native/Kconfig
===================================================================
--- ksrc/skins/native/Kconfig (revision 924)
+++ ksrc/skins/native/Kconfig (working copy)
@@ -10,7 +10,7 @@ if XENO_SKIN_NATIVE != n
config XENO_OPT_NATIVE_PIPE
bool "Message pipes"
- depends on XENO_OPT_PIPE
+ select XENO_OPT_PIPE
default y
help
@@ -33,6 +33,18 @@ config XENO_OPT_NATIVE_PIPE_BUFSZ
This option sets the memory size available for per-pipe
buffering when message pipes are used in byte stream mode.
+config XENO_OPT_NATIVE_REGISTRY
+ bool
+ prompt "Registry support" if !XENO_OPT_PERVASIVE
+ select XENO_OPT_REGISTRY
+ default y
+ help
+
+ The registry is used to bind real-time objects to symbolic names,
+ so that these objects can be further retrieved and shared by
+ real-time applications regardless of their runtime space (i.e.
+ kernel or user). Each named object occupies a registry slot.
+
config XENO_OPT_NATIVE_SEM
bool "Counting semaphores"
default y
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