From f66055caf181c697a018eab3008591d8c79b9823 Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Mon, 1 Aug 2016 16:51:50 +0100
Subject: [PATCH] Add stage 3 kernel cross-build.

---
 .gitignore            |  2 ++
 Makefile              | 29 ++++++++++++++++++++++++++---
 stage3-kernel/.exists |  0
 3 files changed, 28 insertions(+), 3 deletions(-)
 create mode 100644 stage3-kernel/.exists

diff --git a/.gitignore b/.gitignore
index 12e04eb..3751760 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
 *~
 *.tar.gz
 stamp-*
+
+/stage3-kernel/linux-*
diff --git a/Makefile b/Makefile
index 7a577ae..09f8d22 100644
--- a/Makefile
+++ b/Makefile
@@ -108,9 +108,32 @@ stamp-riscv-pk-installed:
 
 # Stage 3
 
-stage3:
-	echo "XXX TO DO"
-	exit 1
+stage3: stage3-kernel/linux-4.6.2.tar.xz \
+	stage3-kernel/linux-4.6.2/vmlinux
+
+stage3-kernel/linux-4.6.2.tar.xz:
+	rm -f $@ $@-t
+	wget -O $@-t https://www.kernel.org/pub/linux/kernel/v4.x/linux-4.6.2.tar.xz
+	mv $@-t $@
+
+stage3-kernel/linux-4.6.2/vmlinux:
+	rm -rf stage3-kernel/linux-4.6.2
+	cat stage3-kernel/linux-4.6.2.tar.xz | tar -x --xz -C stage3-kernel
+	cd stage3-kernel/linux-4.6.2 && \
+	git init
+	cd stage3-kernel/linux-4.6.2 && \
+	git remote add origin https://github.com/lowrisc/riscv-linux.git
+	cd stage3-kernel/linux-4.6.2 && \
+	git fetch
+	cd stage3-kernel/linux-4.6.2 && \
+	git checkout -f -t origin/debug-v0.3
+	cd stage3-kernel/linux-4.6.2 && \
+	patch -p1 < spi_sd_power_hack.patch
+	cd stage3-kernel/linux-4.6.2 && \
+	make ARCH=riscv defconfig
+	cd stage3-kernel/linux-4.6.2 && \
+	make ARCH=riscv CONFIG_CROSS_COMPILE=riscv64-unknown-elf- vmlinux
+	ls -l $@
 
 # Stage 4
 
diff --git a/stage3-kernel/.exists b/stage3-kernel/.exists
new file mode 100644
index 0000000..e69de29
-- 
1.8.3.1