modules/linuxboot: Use a specific commit

* add linuxboot-edk2 module (if not building latest git)
* patch linuxboot-edk2 Makefile to not conflict with ours
* update linuxboot build dir in circleci and boards/winterfell

Signed-off-by: Nathan Rennie-Waldock <nathan.renniewaldock@gmail.com>

Author: NHellFire

.circleci/config.yml

@@ -39,7 +39,7 @@ jobs:
           command: |
             make \
                 BOARD=qemu-linuxboot \
-                `/bin/pwd`/build/linuxboot-git/build/qemu/.configured \
+                `/bin/pwd`/build/linuxboot-b5376a441e8e85cbf722e943bb8294958e87c784/build/qemu/.configured \
                 # Run first to avoid too many processes
 
       - run:

boards/winterfell/winterfell.config

@@ -52,7 +52,7 @@ dxe_offset := 860000
 dxe_size := 6a0000
 flash-dxe: $(build)/$(BOARD)/linuxboot.rom
 	( echo u$(dxe_offset) $(dxe_size) ; \
-	pv $(build)/linuxboot-git/build/$(BOARD)/dxe.vol \
+	pv $(build)/linuxboot-b5376a441e8e85cbf722e943bb8294958e87c784/build/$(BOARD)/dxe.vol \
 	) > /dev/ttyACM0
 
 flash: $(build)/$(BOARD)/linuxboot.rom

modules/linuxboot

@@ -1,7 +1,13 @@
 modules-$(CONFIG_LINUXBOOT) += linuxboot
 
-linuxboot_version := git
-linuxboot_repo := https://github.com/osresearch/linuxboot
+#linuxboot_version := git
+#linuxboot_repo := https://github.com/osresearch/linuxboot
+
+linuxboot_version := b5376a441e8e85cbf722e943bb8294958e87c784
+linuxboot_hash := ccbe2a1ce344dd5831a774a038ed619f988029cc123a87202d62f3d0ec7aad62
+linuxboot_tar := linuxboot-$(linuxboot_version).tar.gz
+linuxboot_url := https://github.com/osresearch/linuxboot/archive/$(linuxboot_version).tar.gz
+
 linuxboot_base_dir := linuxboot-$(linuxboot_version)
 
 # linuxboot builds are specialized on a per-target basis.
@@ -77,3 +83,25 @@ linuxboot.run: $(build)/$(BOARD)/linuxboot.rom
 		INITRD=$(build)/$(BOARD)/initrd.cpio.xz \
 		CUSTOM=$(CUSTOMPWD) \
 		run
+
+# If we are not building from a git checkout,
+# we must also download the linuxboot-edk2 tree
+ifneq "$(linuxboot_version)" "git"
+
+linuxboot_depends += linuxboot-edk2
+modules-$(CONFIG_LINUXBOOT) += linuxboot-edk2
+
+linuxboot-edk2_version := b7c299e4799012e8a20958a68693ab95b7626aa9
+linuxboot-edk2_hash := 78f48f46414b019b5fcd2d7049fd79e955d25f2965123d0bbdf7226564db33e5
+
+linuxboot-edk2_tar := linuxboot-edk2-$(linuxboot-edk2_version).tar.gz
+linuxboot-edk2_url := https://github.com/linuxboot/edk2/archive/$(linuxboot-edk2_version).tar.gz
+linuxboot-edk2_dir := $(linuxboot_base_dir)/edk2
+
+# We don't need to build edk2 ourselves
+# It will be done as part of the linuxboot build process
+linuxboot-edk2_output := .git
+linuxboot-edk2_target := .git
+linuxboot-edk2_configure := echo -e '\n.git:\n\ttouch .git' >> Makefile
+
+endif

modules/linuxboot-edk2

@@ -0,0 +1,2 @@
+# empty placeholder file
+# This submodule is defined in modules/linuxboot if necessary

patches/linuxboot-edk2-b7c299e4799012e8a20958a68693ab95b7626aa9/0000-Makefile-Rename-configured-stamp-to-avoid-conflict-w.patch

@@ -0,0 +1,39 @@
+From d1a4d98a9ddf8e7e7f1e00ca2c143b5d5dc01afd Mon Sep 17 00:00:00 2001
+From: Nathan Rennie-Waldock <nathan.renniewaldock@gmail.com>
+Date: Sun, 18 Oct 2020 23:58:29 +0100
+Subject: [PATCH] Makefile: Rename configured stamp to avoid conflict with
+ heads build system
+
+Signed-off-by: Nathan Rennie-Waldock <nathan.renniewaldock@gmail.com>
+---
+ Makefile | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/Makefile b/Makefile
+index 2c58529031..d400904442 100644
+--- a/Makefile
++++ b/Makefile
+@@ -26,16 +26,16 @@ $(EDK2_OUTPUTS): build-dxe
+ ia32:
+ 	build -a IA32
+ 
+-build-dxe: .configured
++build-dxe: .edk2-configured
+ 	cd MdeModulePkg ; build
+ 
+-build-cpu: .configured
++build-cpu: .edk2-configured
+ 	cd UefiCpuPkg ; build
+-build-quark: .configured
++build-quark: .edk2-configured
+ 	cd QuarkPlatformPkg ; build
+ build: build-dxe
+ 
+- .configured:
++ .edk2-configured:
+ 	$(MAKE) -C BaseTools
+ 	. ./edksetup.sh
+ 	touch $@
+-- 
+2.25.1
+