Add stage 3 kernel cross-build.

[fedora-riscv.git] / Makefile

diff --git a/Makefile b/Makefile
index 7a577ae..09f8d22 100644 (file)
--- 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