Commit 447916b2 authored by Gustavo Zacarias's avatar Gustavo Zacarias Committed by Thomas Petazzoni
Browse files

kvmtool: new package 



Signed-off-by: default avatarGustavo Zacarias <gustavo.zacarias@free-electrons.com>
Reviewed-by: default avatarArnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
parent 98e1848d

package/Config.in

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@@ -1407,6 +1407,7 @@ endif 
	source "package/irqbalance/Config.in"

	source "package/keyutils/Config.in"

	source "package/kmod/Config.in"

	source "package/kvmtool/Config.in"

	source "package/lxc/Config.in"

	source "package/monit/Config.in"

	source "package/ncdu/Config.in"

package/kvmtool/Config.in

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config BR2_PACKAGE_KVMTOOL

	bool "kvmtool"

	depends on BR2_USE_MMU # guest simple init fork()

	# No MADV_HUGEPAGE define in uClibc(-ng)

	depends on (BR2_TOOLCHAIN_USES_GLIBC || BR2_TOOLCHAIN_USES_MUSL)

	# Only mips big-endian seems to be supported (build breaks)

	# Should work on powerpc64 but the build breaks with missing types

	depends on BR2_aarch64 || BR2_arm || BR2_armeb || BR2_i386 || \

		BR2_mips || BR2_x86_64

	# libfdt is only required for DT architectures...

	# ...but it's not able to build for static targets

	depends on !(BR2_STATIC_LIBS && (BR2_aarch64 || BR2_arm || BR2_armeb))

	select BR2_PACKAGE_DTC if BR2_aarch64 || BR2_arm || BR2_armeb

	help

	  kvmtool is a lightweight tool for hosting KVM guests.

	  As a pure virtualization tool it only supports guests using

	  the same architecture, though it supports running 32-bit guests

	  on those 64-bit architectures that allow this.



	  https://git.kernel.org/cgit/linux/kernel/git/will/kvmtool.git/tree/README



comment "kvmtool needs a (e)glibc or musl toolchain"

	depends on BR2_USE_MMU

	depends on BR2_i386 || BR2_mips || BR2_x86_64

	depends on !(BR2_TOOLCHAIN_USES_GLIBC || BR2_TOOLCHAIN_USES_MUSL)



comment "kvmtool needs a (e)glibc or musl toolchain w/ dynamic library"

	depends on BR2_USE_MMU

	depends on BR2_aarch64 || BR2_arm || BR2_armeb

	depends on !(BR2_TOOLCHAIN_USES_GLIBC || BR2_TOOLCHAIN_USES_MUSL) || \

		BR2_STATIC_LIBS

package/kvmtool/kvmtool.mk

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################################################################################

#

# kvmtool

#

################################################################################



KVMTOOL_VERSION = 372f583d359a5bdcbbe7268809c8d1dc179c64d2

KVMTOOL_SITE = $(BR2_KERNEL_MIRROR)/scm/linux/kernel/git/will/kvmtool.git

KVMTOOL_SITE_METHOD = git

KVMTOOL_DEPENDENCIES = \

	$(if $(BR2_PACKAGE_BINUTILS),binutils) \

	$(if $(BR2_PACKAGE_DTC),dtc) \

	$(if $(BR2_PACKAGE_LIBAIO),libaio) \

	$(if $(BR2_PACKAGE_LIBGTK3),libgtk3) \

	$(if $(BR2_PACKAGE_LIBVNCSERVER),libvncserver) \

	$(if $(BR2_PACKAGE_SDL),sdl) \

	$(if $(BR2_PACKAGE_ZLIB),zlib)

KVMTOOL_LICENSE = GPLv2

KVMTOOL_LICENSE_FILES = COPYING



# This is required to convert a static binary (init helper) back into

# object-file format, and in multilib toolchains like CS 2012.09 for x86

# the default is i386, hence when building for x86_64 things break since

# LD doesn't autodetect the input file format.

# GCC-as-linker can't accomplish this feat easily either since it's mixing

# static content (guest_init.o) with dynamic one (lkvm) making

# a relocatable output file.

# The purpose of this trick is to embed the init helper into the main

# binary to help users in guest system startup, which would otherwise

# require more complex guest images.

# This needs revisiting if/when X32 ABI support is added.

#

# If more packages need this (unlikely) an ld wrapper might be a better

# solution, using gcc -dumpspecs information.

KVMTOOL_EXTRA_LDFLAGS = \

	$(if $(BR2_x86_64),-m elf_x86_64)



# Disable -Werror, otherwise musl is not happy

KVMTOOL_MAKE_OPTS = \

	CROSS_COMPILE="$(TARGET_CROSS)" \

	LDFLAGS="$(TARGET_LDFLAGS) $(KVMTOOL_EXTRA_LDFLAGS)" \

	WERROR=0



define KVMTOOL_BUILD_CMDS

	$(TARGET_MAKE_ENV) ARCH=$(KERNEL_ARCH) $(MAKE) -C $(@D) $(KVMTOOL_MAKE_OPTS)

endef



define KVMTOOL_INSTALL_TARGET_CMDS

	$(TARGET_MAKE_ENV) ARCH=$(KERNEL_ARCH) $(MAKE) -C $(@D) \

		$(KVMTOOL_MAKE_OPTS) install DESTDIR=$(TARGET_DIR) prefix=/usr

endef



$(eval $(generic-package))