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perform per-board Linux builds

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This commit is contained in:
Trammell hudson 2018-02-05 15:28:33 -05:00
parent 47a94da5ed
commit 22f7442710
Failed to extract signature
2 changed files with 28 additions and 14 deletions
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22
Makefile
View File

@ -61,7 +61,6 @@ initrd_lib_dir := $(initrd_dir)/lib
initrd_bin_dir := $(initrd_dir)/bin
$(shell mkdir -p "$(initrd_lib_dir)" "$(initrd_bin_dir)")
$(shell echo "Initrd: $initrd_dir")
#ifeq "$(CONFIG)" ""
#CONFIG := config/qemu-moc.config
@ -163,7 +162,7 @@ define do-cpio =
endef
define do-copy =
$(call do,CP,$2,\
$(call do,COPY,$(2:$(pwd)/%=%),\
sha256sum "$(1:$(pwd)/%=%)" ; \
if ! cmp --quiet "$1" "$2" ; then \
cp -a "$1" "$2"; \
@ -209,20 +208,26 @@ define define_module =
@touch "$$@"
endif
# Allow the module to override the destination configuration file
# via a relative path. Linux uses this to have a per-board build.
$(eval $1_config_file_path := $(build)/$($1_dir)/$(or $($1_config_file),.config))
ifeq "$($1_config)" ""
# There is no official .config file
$(build)/$($1_dir)/.config: $(build)/$($1_dir)/.canary
$($1_config_file_path): $(build)/$($1_dir)/.canary
@mkdir -p $$(dir $$@)
@touch "$$@"
else
# Copy the stored config file into the unpacked directory
$(build)/$($1_dir)/.config: config/$($1_config) $(build)/$($1_dir)/.canary
$(call do,COPY,"$$<",cp "$$<" "$$@")
$($1_config_file_path): config/$($1_config) $(build)/$($1_dir)/.canary
@mkdir -p $$(dir $$@)
$(call do-copy,config/$($1_config),$$@)
endif
# Use the module's configure variable to build itself
$(build)/$($1_dir)/.configured: \
$(dir $($1_config_file_path))/.configured: \
$(build)/$($1_dir)/.canary \
$(build)/$($1_dir)/.config \
$($1_config_file_path) \
$(foreach d,$($1_depends),$(call outputs,$d)) \
modules/$1
@echo "$(DATE) CONFIG $1"
@ -247,7 +252,8 @@ define define_module =
$1.intermediate: \
$(foreach d,$($1_depends),$d.intermediate) \
$(foreach d,$($1_depends),$(call outputs,$d)) \
$(build)/$($1_dir)/.configured
$(dir $($1_config_file_path))/.configured \
@echo "$(DATE) MAKE $1"
@( \
echo "$(MAKE) \

20
modules/linux
View File

@ -5,15 +5,23 @@ linux_dir := linux-$(linux_version)
linux_tar := linux-$(linux_version).tar.xz
linux_url := https://cdn.kernel.org/pub/linux/kernel/v4.x/$(linux_tar)
linux-4.9.7_hash := 0b61283b71c7397cb6b5ac3497845d3cdf8137ecd16ab39c8ac6cf5bb90e33dc
linux-4.9.20_hash := 48660806dd32fb8dcbcf5932291bf6cc7d29240070372230871e0f56fea81341
linux-4.9.38_hash := 76d789d87dd51d2fd58c095727171984fa4a992f5e25b9e3eb1e5fd5cd129074
linux_hash := $(linux-$(linux_version)_hash)
linux_board_dir := $(build)/$(linux_dir)/$(BOARD)
# input file in the heads config/ dir
# Allow board config to specialize Linux configuration if necessary
linux_config ?= linux.config
# output file in the build dir
linux_config_file := $(BOARD)/.config
linux_configure := \
$(MAKE) \
CROSS_COMPILE="$(CROSS)" \
O="$(linux_board_dir)" \
oldconfig \
linux_output += $(build)/$(BOARD)/bzImage
@ -21,7 +29,6 @@ linux_output += $(build)/$(BOARD)/bzImage
# linux.intermediate: $(linux_output)
#linux_output += $(build)/$(BOARD)/modules.cpio
linux_config ?= linux.config # Allow board config to specialize Linux
# qemu
linux_modules-$(CONFIG_LINUX_E1000) += drivers/net/ethernet/intel/e1000/e1000.ko
@ -61,6 +68,7 @@ linux_modules-$(CONFIG_LINUX_USB) += drivers/usb/storage/usb-storage.ko
EXTRA_FLAGS := -fdebug-prefix-map=$(pwd)=heads -gno-record-gcc-switches
linux_target := \
O="$(linux_board_dir)" \
CROSS_COMPILE="$(CROSS)" \
AFLAGS_KERNEL="$(EXTRA_FLAGS)" \
CFLAGS_KERNEL="$(EXTRA_FLAGS)" \
@ -87,13 +95,13 @@ FOO := $(shell mkdir -p "$(module_initrd_lib_dir)")
define linux_module =
# Each module depends on building the Linux kernel
$(build)/$(linux_dir)/$1: linux.intermediate # $(build)/$(BOARD)/bzImage
$(linux_board_dir)/$1: linux.intermediate # $(build)/$(BOARD)/bzImage
# The cpio file will depend on every module
$(build)/$(BOARD)/modules.cpio: $(module_initrd_lib_dir)/$(notdir $1)
# Strip the modules when we install them so that they will be extra small
$(module_initrd_lib_dir)/$(notdir $1): $(build)/$(linux_dir)/$1
$(module_initrd_lib_dir)/$(notdir $1): $(linux_board_dir)/$1
$(call do,INSTALL-MODULE,$1, \
$(CROSS)strip \
--preserve-dates \
@ -113,6 +121,6 @@ $(build)/$(BOARD)/modules.cpio: linux.intermediate
# hack for the coreboot to find the linux kernel
$(build)/$(BOARD)/bzImage: linux.intermediate
$(build)/$(BOARD)/bzImage: $(build)/$(linux_dir)/arch/x86/boot/bzImage
$(build)/$(BOARD)/bzImage: $(linux_board_dir)/arch/x86/boot/bzImage
$(call do-copy,$<,$@)