8143721c3e
This patch adds the ability to compile and install the kernel selftests into the target at /usr/lib/kselftests. The rationale behind /usr/lib is that the selftests have subdirectories where they are installed which makes them unsuitable to be placed in /usr/sbin as this would result in /usr/sbin/kselftests/x/y/z. While the selftests aren't libraries either, they don't achieve much as a standalone binary so they can be considered to be a 'library of tests' making /usr/lib sensible. The selftests require that the kernel headers be installed into the kernel build tree as some of the selftests have a hardcoded CFLAGS to include kernel headers (CFLAGS += -I../../../../usr/include/). This is most easily achieved by using the make ... headers_install inside the kernel build dir. 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 <cyrilbur@gmail.com> Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr> [Thomas: - remove bash as a build dependency, it is only a runtime dependency. - fix typo in the Config.in help text, and rewrap - add missing 'depends on BR2_USE_MMU' dependency for the comment.] Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
52 lines
1.7 KiB
Plaintext
52 lines
1.7 KiB
Plaintext
menu "Linux Kernel Tools"
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config BR2_LINUX_KERNEL_TOOL_CPUPOWER
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bool "cpupower"
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depends on !BR2_bfin # pciutils
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select BR2_PACKAGE_PCIUTILS
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help
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cpupower is a collection of tools to examine and tune power
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saving related features of your processor.
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config BR2_LINUX_KERNEL_TOOL_PERF
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bool "perf"
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help
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perf (sometimes "Perf Events" or perf tools, originally
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"Performance Counters for Linux") - is a performance
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analyzing tool in Linux, available from kernel version
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2.6.31. User-space controlling utility, called 'perf' has
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git-like interface with subcommands. It is capable of
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statistical profiling of entire system (both kernel and user
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code), single CPU or severals threads.
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This will build and install the userspace 'perf'
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command. It is up to the user to ensure that the kernel
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configuration has all the suitable options enabled to allow a
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proper operation of 'perf'.
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https://perf.wiki.kernel.org/
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config BR2_LINUX_KERNEL_TOOL_SELFTESTS
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bool"selftests"
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depends on BR2_PACKAGE_BUSYBOX_SHOW_OTHERS # bash
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depends on BR2_USE_MMU # bash
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select BR2_PACKAGE_BASH # runtime
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select BR2_PACKAGE_POPT
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select BR2_PACKAGE_LIBCAP_NG
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help
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Build and install (to /usr/lib/kselftests) kernel selftests.
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Use of this option implies you know the process of using and
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compiling the kernel selftests. The Makefile to build and
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install these is very noisy and may appear to cause your
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build to fail for strange reasons.
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This is very much a use at your risk option and may not work
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for every setup or every architecture.
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comment "selftests needs BR2_PACKAGE_BUSYBOX_SHOW_OTHERS"
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depends on BR2_USE_MMU
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depends on !BR2_PACKAGE_BUSYBOX_SHOW_OTHERS
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endmenu
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