From 96c26ce86322de1985138958af7a7d14d825afb8 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Fri, 22 Jan 2021 11:39:49 +0100 Subject: [PATCH] linux: add support for Image.gz kernel format arm64 / riscv supports building a gzip compressed 'Image' format kernel, which is sometimes useful. From arch/arm64/Makefile: all: Image.gz Image: vmlinux $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ Image.%: Image $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ (and similar logic for riscv) Future architectures may or may not copy this logic, so for robustness add an explicit Image.gz format rather than copying both Image and Image.gz when the Image format is used. Signed-off-by: Peter Korsgaard Signed-off-by: Thomas Petazzoni --- linux/Config.in | 4 ++++ linux/linux.mk | 2 ++ 2 files changed, 6 insertions(+) diff --git a/linux/Config.in b/linux/Config.in index 4010a9def8..7cef0f3655 100644 --- a/linux/Config.in +++ b/linux/Config.in @@ -263,6 +263,10 @@ config BR2_LINUX_KERNEL_IMAGE bool "Image" depends on BR2_aarch64 || BR2_riscv +config BR2_LINUX_KERNEL_IMAGEGZ + bool "Image.gz" + depends on BR2_aarch64 || BR2_riscv + config BR2_LINUX_KERNEL_LINUX_BIN bool "linux.bin" depends on BR2_microblaze diff --git a/linux/linux.mk b/linux/linux.mk index c2ea0008d7..a212f42c28 100644 --- a/linux/linux.mk +++ b/linux/linux.mk @@ -204,6 +204,8 @@ else ifeq ($(BR2_LINUX_KERNEL_SIMPLEIMAGE),y) LINUX_IMAGE_NAME = simpleImage.$(firstword $(LINUX_DTS_NAME)) else ifeq ($(BR2_LINUX_KERNEL_IMAGE),y) LINUX_IMAGE_NAME = Image +else ifeq ($(BR2_LINUX_KERNEL_IMAGEGZ),y) +LINUX_IMAGE_NAME = Image.gz else ifeq ($(BR2_LINUX_KERNEL_LINUX_BIN),y) LINUX_IMAGE_NAME = linux.bin else ifeq ($(BR2_LINUX_KERNEL_VMLINUX_BIN),y) -- 2.30.2