From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cyril Bur Date: Wed, 25 Nov 2015 10:53:42 +1100 Subject: [Buildroot] [PATCH] linux: Build and install kernel selftests In-Reply-To: <1448409222-4510-1-git-send-email-cyrilbur@gmail.com> References: <1448409222-4510-1-git-send-email-cyrilbur@gmail.com> Message-ID: <1448409222-4510-2-git-send-email-cyrilbur@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net This patch simply adds the ability to compile and install the kernel selftests into the target. This is likely to be a rarely used debugging/performance feature for development and unlikely to be used in a production configuration. Signed-off-by: Cyril Bur --- linux/Config.tools.in | 12 ++++++++++++ linux/linux-tool-selftests.mk | 40 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 52 insertions(+) create mode 100644 linux/linux-tool-selftests.mk diff --git a/linux/Config.tools.in b/linux/Config.tools.in index 24ef8cd..68655dc 100644 --- a/linux/Config.tools.in +++ b/linux/Config.tools.in @@ -26,4 +26,16 @@ config BR2_LINUX_KERNEL_TOOL_PERF https://perf.wiki.kernel.org/ +config BR2_LINUX_KERNEL_TOOL_SELFTESTS + bool "selftests" + help + Build and install (to /usr/lib/selftests) kernel selftests. + + Use of this option implies you know the process using and compiling + the kernel selftests. The Makefile to build and install these is very + noisy and may appear to cause your build to fail for strange reasons. + + This is very much a use at your risk option and may not work for + every setup or every architecture. + endmenu diff --git a/linux/linux-tool-selftests.mk b/linux/linux-tool-selftests.mk new file mode 100644 index 0000000..573ba0c --- /dev/null +++ b/linux/linux-tool-selftests.mk @@ -0,0 +1,40 @@ +################################################################################ +# +# selftests +# +################################################################################ + +LINUX_TOOLS += selftests + +ifeq ($(KERNEL_ARCH),x86_64) +SELFTESTS_ARCH=x86 +else +SELFTESTS_ARCH=$(KERNEL_ARCH) +endif + +SELFTESTS_DEPENDENCIES = bash + +SELFTESTS_INSTALL_STAGING = YES +SELFTESTS_MAKE_FLAGS = \ + $(LINUX_MAKE_FLAGS) \ + ARCH=$(SELFTESTS_ARCH) + +# O must be redefined here to overwrite the one used by Buildroot for +# out of tree build. We build the selftests in $(@D)/tools/selftests and +# not just $(@D) so that it isn't built in the root directory of the kernel +# sources. +define SELFTESTS_BUILD_CMDS + $(TARGET_MAKE_ENV) $(MAKE1) -C $(@D) headers_install + $(TARGET_MAKE_ENV) $(MAKE1) $(SELFTESTS_MAKE_FLAGS) \ + -C $(@D)/tools/testing/selftests O=$(@D)/tools/testing/selftests +endef + +define SELFTESTS_INSTALL_STAGING_CMDS + $(TARGET_MAKE_ENV) $(MAKE1) INSTALL_PATH=$(STAGING_DIR)/usr/lib/selftests $(SELFTESTS_MAKE_FLAGS) \ + -C $(@D)/tools/testing/selftests install +endef + +define SELFTESTS_INSTALL_TARGET_CMDS + $(TARGET_MAKE_ENV) $(MAKE1) INSTALL_PATH=$(TARGET_DIR)/usr/lib/selftests $(SELFTESTS_MAKE_FLAGS) \ + -C $(@D)/tools/testing/selftests install +endef -- 2.6.2