Commit 47f578e3 authored by Yann E. MORIN's avatar Yann E. MORIN Committed by Peter Korsgaard
Browse files

package/dtc: new package 



dtc is the Device Tree Compiler, and manipulates device trees.

Signed-off-by: default avatar"Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: default avatarPeter Korsgaard <jacmet@sunsite.dk>
parent 4ae47d82

package/Config.in

+1 −0
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@@ -459,6 +459,7 @@ endmenu 


menu "Hardware handling"

source "package/ccid/Config.in"

source "package/dtc/Config.in"

source "package/imx-lib/Config.in"

source "package/lcdapi/Config.in"

source "package/libaio/Config.in"

package/dtc/Config.in

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config BR2_PACKAGE_DTC

	bool "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.



	  Note that only the library is installed for now.



	  http://git.jdl.com/gitweb/?p=dtc.git  (no home page)

package/dtc/dtc-extra_cflags.patch

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Makefile: append the CFLAGS to existing ones



Allow the user to pass custom CFLAGS (eg. optimisation flags).



Do not use EXTRA_CFLAGS, append to existing CFLAGS with +=  (Arnout)



Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

Cc: Arnout Vandecappelle <arnout@mind.be>



---

Patch not sent upstream.



Although not specific to buildroot, I am not sure this is the best

way to handle user-supplied CFLAGS.



diff -durN dtc-e4b497f367a3b2ae99cc52089a14a221b13a76ef.orig/Makefile dtc-e4b497f367a3b2ae99cc52089a14a221b13a76ef/Makefile

--- dtc-e4b497f367a3b2ae99cc52089a14a221b13a76ef.orig/Makefile	2012-10-22 22:02:47.541240846 +0200

+++ dtc-e4b497f367a3b2ae99cc52089a14a221b13a76ef/Makefile	2012-10-22 22:03:21.151047833 +0200

@@ -18,7 +18,8 @@

 CPPFLAGS = -I libfdt -I .

 WARNINGS = -Werror -Wall -Wpointer-arith -Wcast-qual -Wnested-externs \

 	-Wstrict-prototypes -Wmissing-prototypes -Wredundant-decls

-CFLAGS = -g -Os -fPIC -Werror $(WARNINGS)

+CFLAGS ?= -g -Os

+CFLAGS += -fPIC $(WARNINGS)

 

 BISON = bison

 LEX = flex

package/dtc/dtc-separate-lib-install.patch

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Makefile: add a rule to only install libfdt



Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>



---

Patch not sent upstream.



It's really specific to buildroot, and is probably not

good (aka generic) enough to be pushed upstream.



diff --git a/Makefile b/Makefile

index 1169e6c..39e7190 100644

--- a/Makefile

+++ b/Makefile

@@ -160,10 +160,12 @@ endif

 # intermediate target and building them again "for real"

 .SECONDARY: $(DTC_GEN_SRCS) $(CONVERT_GEN_SRCS)

 

-install: all $(SCRIPTS)

+install: all $(SCRIPTS) libfdt_install

 	@$(VECHO) INSTALL

 	$(INSTALL) -d $(DESTDIR)$(BINDIR)

 	$(INSTALL) $(BIN) $(SCRIPTS) $(DESTDIR)$(BINDIR)

+

+libfdt_install: libfdt

 	$(INSTALL) -d $(DESTDIR)$(LIBDIR)

 	$(INSTALL) $(LIBFDT_lib) $(DESTDIR)$(LIBDIR)

 	ln -sf $(notdir $(LIBFDT_lib)) $(DESTDIR)$(LIBDIR)/$(LIBFDT_soname)

package/dtc/dtc.mk

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

#

# dtc

#

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



DTC_VERSION         = e4b497f367a3b2ae99cc52089a14a221b13a76ef

DTC_SITE            = git://git.jdl.com/software/dtc.git

DTC_LICENSE         = GPLv2+/BSD-2c

DTC_LICENSE_FILES   = README.license GPL

# Note: the dual-license only applies to the library.

#       The DT compiler (dtc) is GPLv2+, but we do not install it.

DTC_INSTALL_STAGING = YES



define DTC_BUILD_CMDS

	$(TARGET_CONFIGURE_OPTS)    \

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

endef



# libfdt_install is our own install rule added by our patch

define DTC_INSTALL_STAGING_CMDS

	$(MAKE) -C $(@D) DESTDIR=$(STAGING_DIR) PREFIX=/usr libfdt_install

endef



define DTC_INSTALL_TARGET_CMDS

	$(MAKE) -C $(@D) DESTDIR=$(TARGET_DIR) PREFIX=/usr libfdt_install

endef



define DTC_CLEAN_CMDS

	$(MAKE) -C $(@D) libfdt_clean

endef



$(eval $(generic-package))