Commit 5774f07d authored by Peter Seiderer's avatar Peter Seiderer Committed by Peter Korsgaard
Browse files

dtc: add host build 



Having a host variant of dtc is needed for example for U-Boot, which
uses the Device Tree for a number of platforms.

In addition, now that we have a proper host-dtc package, it is no
longer needed for the linux package to install the host dtc compiler:
users interested in having the host dtc compiler can simply enable
this package.

A Config.in.host option is added to build host-dtc, because the
initial reason why the host DTC built by the kernel was installed in
$(HOST_DIR)/usr/bin (commit 707d44d0
from Thomas DS) was:

    Having dtc as a host tool can be useful for users that have a
    custom boot scenario where the device tree is not embedded in the
    kernel.

[Thomas:
  - rework the commit log.]
[Peter: keep the (renamed) linux version]
Signed-off-by: default avatarPeter Seiderer <ps.report@gmx.net>
Signed-off-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: default avatarPeter Korsgaard <peter@korsgaard.com>
parent ab74e09e

package/Config.in.host

+1 −0
Original line number Diff line number Diff line
@@ -5,6 +5,7 @@ menu "Host utilities" 
	source "package/dfu-util/Config.in.host"

	source "package/dos2unix/Config.in.host"

	source "package/dosfstools/Config.in.host"

	source "package/dtc/Config.in.host"

	source "package/e2fsprogs/Config.in.host"

	source "package/e2tools/Config.in.host"

	source "package/faketime/Config.in.host"

package/dtc/Config.in.host

0 → 100644
+9 −0
Original line number Diff line number Diff line 
config BR2_PACKAGE_HOST_DTC

	bool "host dtc"

	help

	  The Device Tree Compiler, dtc, takes as input a device-tree in

	  a given format and outputs a device-tree in another format.



	  Install host tools: dtc, convert-dtsv0, fdtdump, fdtget and fdtput.



	  https://git.kernel.org/cgit/utils/dtc/dtc.git

package/dtc/dtc.mk

+10 −0
Original line number Diff line number Diff line
@@ -44,4 +44,14 @@ define DTC_INSTALL_TARGET_CMDS 
	$(MAKE) -C $(@D) DESTDIR=$(TARGET_DIR) PREFIX=/usr $(DTC_INSTALL_GOAL)

endef



# host build

define HOST_DTC_BUILD_CMDS

	$(HOST_CONFIGURE_OPTS) $(MAKE) -C $(@D) PREFIX=$(HOST_DIR)/usr

endef



define HOST_DTC_INSTALL_CMDS

	$(MAKE) -C $(@D) PREFIX=$(HOST_DIR)/usr install-bin

endef



$(eval $(generic-package))

$(eval $(host-generic-package))