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linux: add linux-tools infra

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This commit add an infrastructure to build linux kernel
tools available in the kernel sources.

Currently, the only linux kernel tool packaged in Buildroot
is perf and it's packaged as a separate generic package.
This is a problem for licence information raised in this
thread [1].

Since these tools require to build a Linux kernel, we can
use some hooks in linux package like we did for linux
extensions [2] and remove the perf package.

[1] http://lists.busybox.net/pipermail/buildroot/2015-May/128783.html
[2] http://lists.busybox.net/pipermail/buildroot/2015-March/121835.html

[Thomas: fix minor typos in comments.]

Signed-off-by: Romain Naour <romain.naour@openwide.fr>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Romain Naour 2015-07-14 19:35:12 +02:00 committed by Thomas Petazzoni
parent 1b787822fb
commit f3a23945a2
1 changed files with 24 additions and 0 deletions
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24
linux/linux.mk
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@ -313,6 +313,8 @@ define LINUX_INSTALL_TARGET_CMDS
$(LINUX_INSTALL_HOST_TOOLS)
endef
# Include all our extensions and tools definitions.
#
# Note: our package infrastructure uses the full-path of the last-scanned
# Makefile to determine what package we're currently defining, using the
# last directory component in the path. As such, including other Makefile,
@ -322,6 +324,7 @@ endef
# the current Makefile, we are OK. But this is a hard requirement: files
# included here *must* be in the same directory!
include $(sort $(wildcard linux/linux-ext-*.mk))
include $(sort $(wildcard linux/linux-tool-*.mk))
LINUX_PATCH_DEPENDENCIES += $(foreach ext,$(LINUX_EXTENSIONS),\
$(if $(BR2_LINUX_KERNEL_EXT_$(call UPPERCASE,$(ext))),$(ext)))
@ -330,6 +333,27 @@ LINUX_PRE_PATCH_HOOKS += $(foreach ext,$(LINUX_EXTENSIONS),\
$(if $(BR2_LINUX_KERNEL_EXT_$(call UPPERCASE,$(ext))),\
$(call UPPERCASE,$(ext))_PREPARE_KERNEL))
# Install Linux kernel tools in the staging directory since some tools
# may install shared libraries and headers (e.g. cpupower). The kernel
# image is NOT installed in the staging directory.
LINUX_INSTALL_STAGING = YES
LINUX_DEPENDENCIES += $(foreach tool,$(LINUX_TOOLS),\
$(if $(BR2_LINUX_KERNEL_TOOL_$(call UPPERCASE,$(tool))),\
$($(call UPPERCASE,$(tool))_DEPENDENCIES)))
LINUX_POST_BUILD_HOOKS += $(foreach tool,$(LINUX_TOOLS),\
$(if $(BR2_LINUX_KERNEL_TOOL_$(call UPPERCASE,$(tool))),\
$(call UPPERCASE,$(tool))_BUILD_CMDS))
LINUX_POST_INSTALL_STAGING_HOOKS += $(foreach tool,$(LINUX_TOOLS),\
$(if $(BR2_LINUX_KERNEL_TOOL_$(call UPPERCASE,$(tool))),\
$(call UPPERCASE,$(tool))_INSTALL_STAGING_CMDS))
LINUX_POST_INSTALL_TARGET_HOOKS += $(foreach tool,$(LINUX_TOOLS),\
$(if $(BR2_LINUX_KERNEL_TOOL_$(call UPPERCASE,$(tool))),\
$(call UPPERCASE,$(tool))_INSTALL_TARGET_CMDS))
# Checks to give errors that the user can understand
ifeq ($(BR_BUILDING),y)