From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pawel Sikora Date: Mon, 10 Apr 2017 02:17:00 +0200 Subject: [Buildroot] [PATCH v2] xenomai: Add config for enabling/disabling SMP In-Reply-To: <20170406234657.31813-1-sikor6@gmail.com> References: <20170406234657.31813-1-sikor6@gmail.com> Message-ID: <20170410001700.31490-1-sikor6@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Add a config option for enabling/disabling SMP in Xenomai userspace in version 3.x Enabled by default. Signed-off-by: Pawel Sikora --- Changes v1 -> v2: - default y, moving comment to help, changed help, adding explicitly --disable-smp opt in the else statement (suggested by Arnout V.) package/xenomai/Config.in | 24 ++++++++++++++++++++++++ package/xenomai/xenomai.mk | 6 ++++++ 2 files changed, 30 insertions(+) diff --git a/package/xenomai/Config.in b/package/xenomai/Config.in index b548ee810..b2697e5af 100644 --- a/package/xenomai/Config.in +++ b/package/xenomai/Config.in @@ -51,6 +51,30 @@ config BR2_PACKAGE_XENOMAI_VERSION BR2_LINUX_KERNEL_EXT_XENOMAI_ADEOS_PATCH, in the Linux Kernel -> Linux Kernel Extensions menu. +config BR2_PACKAGE_XENOMAI_ENABLE_SMP + bool "Enable SMP" + default y + help + This option allows to enable SMP in Xenomai userspace. + + Please note: + If you use Xenomai 2.x you have SMP enabled by default. + + Xenomai 3.x is being built by default with SMP disabled, + but to have a behaviour similar to previous versions, + option is enabled by default and you need to uncheck it + if you don't need it. + + Second reason of setting it by default is that Xenomai + userspace with SMP enabled and with Linux Kernel without + SMP config are working fine together. + But NOT the other way around. + + Please refer to this troubleshooting guide for more + information in section "feature mismatch: missing=?smp/nosmp?: + + https://xenomai.org/troubleshooting-a-dual-kernel-configuration/ + config BR2_PACKAGE_XENOMAI_TESTSUITE bool "Install testsuite" help diff --git a/package/xenomai/xenomai.mk b/package/xenomai/xenomai.mk index c9e810e05..04880e69a 100644 --- a/package/xenomai/xenomai.mk +++ b/package/xenomai/xenomai.mk @@ -23,6 +23,12 @@ XENOMAI_INSTALL_STAGING_OPTS = DESTDIR=$(STAGING_DIR) install-user XENOMAI_CONF_OPTS += --includedir=/usr/include/xenomai/ --disable-doc-install +ifeq ($(BR2_PACKAGE_XENOMAI_ENABLE_SMP),y) +XENOMAI_CONF_OPTS += --enable-smp +else +XENOMAI_CONF_OPTS += --disable-smp +endif + define XENOMAI_REMOVE_DEVFILES for i in xeno-config xeno-info wrap-link.sh ; do \ rm -f $(TARGET_DIR)/usr/bin/$$i ; \ -- 2.12.1