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heads/modules/linux
Jonathon Hall 2af1305b53 linux: Ship the default keymap if loadkeys is included 
This is the actual default keymap the kernel loads by default (it is
different from any of the keymaps provided by kbd, although possibly
not in any way anyone would care about).

This makes loadkeys --default work.

Signed-off-by: Jonathon Hall <jonathon.hall@puri.sm>
2025-05-02 17:41:21 -04:00

324 lines
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Makefile
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modules-y += linux
ifeq "$(CONFIG_TARGET_ARCH)" "x86"
LINUX_ARCH := x86
LINUX_IMAGE_FILE := bzImage
else ifeq "$(CONFIG_TARGET_ARCH)" "ppc64"
LINUX_ARCH := powerpc
LINUX_IMAGE_FILE := zImage
else
$(error "$(CONFIG_TARGET_ARCH) target isn't supported by this module")
endif
ifeq "$(CONFIG_LINUX_VERSION)" "4.14.62"
linux_version := 4.14.62
linux_hash := 51ca4d7e8ee156dc0f19bc7768915cfae41dbb0b4f251e4fa8b178c5674c22ab
else ifeq "$(CONFIG_LINUX_VERSION)" "4.19.139"
linux_version := 4.19.139
linux_hash := 9c4ebf21fe949f80fbcfbbd6e7fe181040d325e89475e230ab53ef01f9d55605
else ifeq "$(CONFIG_LINUX_VERSION)" "5.4.69"
linux_version := 5.4.69
linux_hash := a8b31d716b397303a183e42ad525ff2871024a43e3ea530d0fdf73b7f9d27da7
else ifeq "$(CONFIG_LINUX_VERSION)" "6.6.16-openpower"
linux_version := 6.6.16
linux_patch_version := 6.6.16-openpower
linux_hash := b21d5795a3bead4f112916423222faa8a0f519e4201df343e3eb88dc9e4aaa30
#
# linuxboot systems should *NOT* use 5.10.5 until a proper review has
# been done. This is because `0000-efi_bds.patch` did not cleanly port
# from 5.4.69 to 5.10.5 which directly affects linuxboot systems.
#
else ifeq "$(CONFIG_LINUX_VERSION)" "5.10.214"
linux_version := 5.10.214
linux_hash := 40f014d53e81f204f6d2a364aae4201ae07970dd1b70dc602d7c66c1a140f558
else ifeq "$(CONFIG_LINUX_VERSION)" "6.1.8"
linux_version := 6.1.8
linux_hash := b60bb53ab8ba370a270454b11e93d41af29126fc72bd6ede517673e2e57b816d
else
$(error "$(BOARD): does not specify linux kernel version under CONFIG_LINUX_VERSION")
endif
linux_base_dir := linux-$(linux_version)
# input file in the heads config/ dir
# Allow board config to specialize Linux configuration if necessary
linux_kconfig := $(or $(CONFIG_LINUX_CONFIG),config/linux.config)
# Output directory for the Linux kernel build is based on the
# configuration file name, not the board name
linux_dir := $(linux_base_dir)/$(notdir $(basename $(linux_kconfig)))
linux_tar := linux-$(linux_version).tar.xz
linux_major_ver := $(basename $(basename $(CONFIG_LINUX_VERSION)))
linux_url := https://cdn.kernel.org/pub/linux/kernel/v$(linux_major_ver).x/$(linux_tar)
# Ensure that touching the config file will force a reconfig/rebuild
$(build)/$(linux_dir)/.configured: $(linux_kconfig)
linux_configure := \
mkdir -p "$(build)/$(linux_dir)" \
&& $(call install_config,$(pwd)/$(linux_kconfig),$(build)/$(linux_dir)/.config) \
&& $(MAKE) -C .. \
ARCH="$(LINUX_ARCH)" \
CROSS_COMPILE="$(CROSS)" \
O="$(build)/$(linux_dir)" \
olddefconfig \
linux_output += arch/$(LINUX_ARCH)/boot/$(LINUX_IMAGE_FILE)
# Once we have extracted the kernel tar file, install the headers
# so that other submodules can make use of them.
$(INSTALL)/include/linux/limits.h: $(build)/$(linux_base_dir)/.canary
$(MAKE) \
-C "$(build)/$(linux_base_dir)" \
ARCH="$(LINUX_ARCH)" \
INSTALL_HDR_PATH="$(INSTALL)" \
CROSS_COMPILE="$(CROSS)" \
O="$(linux_dir)" \
KCONFIG_CONFIG="$(pwd)/$(linux_kconfig)" \
headers_install
# Inconditional: add USB keyboard support to all boards (linux_modules-y)
linux_modules-y += drivers/hid/usbhid/usbhid.ko
# qemu
linux_modules-$(CONFIG_LINUX_E1000) += drivers/net/ethernet/intel/e1000/e1000.ko
# x230 and winterfell
linux_modules-$(CONFIG_LINUX_E1000E) += drivers/net/ethernet/intel/e1000e/e1000e.ko
# Dell R630 ethernet and RAID controller
linux_modules-$(CONFIG_LINUX_IGB) += drivers/net/ethernet/intel/igb/igb.ko
linux_modules-$(CONFIG_LINUX_MEGARAID) += drivers/scsi/megaraid/megaraid_mm.ko
linux_modules-$(CONFIG_LINUX_MEGARAID) += drivers/scsi/megaraid/megaraid_sas.ko
linux_modules-$(CONFIG_LINUX_MEGARAID) += drivers/scsi/megaraid/megaraid_mbox.ko
# Intel s2600wf scsi controller
linux_modules-$(CONFIG_LINUX_SCSI_GDTH) += drivers/scsi/gdth.ko
linux_modules-$(CONFIG_LINUX_ATA) += drivers/ata/libata.ko
linux_modules-$(CONFIG_LINUX_AHCI) += drivers/ata/ahci.ko
#linux_modules-$(CONFIG_LINUX_AHCI) += drivers/ata/ahci_platform.ko
linux_modules-$(CONFIG_LINUX_AHCI) += drivers/ata/libahci.ko
#linux_modules-$(CONFIG_LINUX_AHCI) += drivers/ata/libahci_platform.ko
# Solarflare network card
linux_modules-$(CONFIG_LINUX_SFC) += drivers/net/ethernet/sfc/sfc.ko
linux_modules-$(CONFIG_LINUX_SFC) += drivers/net/mdio.ko
# Mellanox ConnectX-3 (winterfell)
linux_modules-$(CONFIG_LINUX_MLX4) += drivers/net/ethernet/mellanox/mlx4/mlx4_core.ko
linux_modules-$(CONFIG_LINUX_MLX4) += drivers/net/ethernet/mellanox/mlx4/mlx4_en.ko
# Broadcom 57302 (25g) for Tioga Pass
linux_modules-$(CONFIG_LINUX_BCM) += drivers/net/ethernet/broadcom/bnxt/bnxt_en.ko
# USB modules for both types of controllers
# older boards also need ohci and uhci
linux_modules-$(CONFIG_LINUX_USB_COMPANION_CONTROLLER) += drivers/usb/host/uhci-hcd.ko
linux_modules-$(CONFIG_LINUX_USB_COMPANION_CONTROLLER) += drivers/usb/host/ohci-hcd.ko
linux_modules-$(CONFIG_LINUX_USB_COMPANION_CONTROLLER) += drivers/usb/host/ohci-pci.ko
linux_modules-$(CONFIG_LINUX_USB) += drivers/usb/host/ehci-hcd.ko
linux_modules-$(CONFIG_LINUX_USB) += drivers/usb/host/ehci-pci.ko
linux_modules-$(CONFIG_LINUX_USB) += drivers/usb/host/xhci-hcd.ko
linux_modules-$(CONFIG_LINUX_USB) += drivers/usb/host/xhci-pci.ko
linux_modules-$(CONFIG_LINUX_USB) += drivers/usb/storage/usb-storage.ko
#USB modules for Mobile USB Tethering (Most Android phones, Librem phone, etc)
linux_modules-$(CONFIG_MOBILE_TETHERING) += drivers/net/mii.ko
linux_modules-$(CONFIG_MOBILE_TETHERING) += drivers/net/usb/usbnet.ko
linux_modules-$(CONFIG_MOBILE_TETHERING) += drivers/net/usb/cdc_ether.ko
linux_modules-$(CONFIG_MOBILE_TETHERING) += drivers/net/usb/cdc_ncm.ko
linux_modules-$(CONFIG_MOBILE_TETHERING) += drivers/net/usb/cdc_eem.ko
# NVMe driver for winterfell and other servers
linux_modules-$(CONFIG_LINUX_NVME) += drivers/nvme/host/nvme.ko
linux_modules-$(CONFIG_LINUX_NVME) += drivers/nvme/host/nvme-core.ko
# ME drivers for talking the the management engine
linux_modules-$(CONFIG_LINUX_MEI) += drivers/misc/mei/mei.ko
linux_modules-$(CONFIG_LINUX_MEI) += drivers/misc/mei/mei-me.ko
EXTRA_FLAGS := -fdebug-prefix-map=$(pwd)=heads -gno-record-gcc-switches
ifeq "$(CONFIG_LINUX_VERSION)" "4.14.62"
EXTRA_FLAGS += -Wno-cast-function-type
endif
linux_target := \
O="$(build)/$(linux_dir)" \
ARCH="$(LINUX_ARCH)" \
CROSS_COMPILE="$(CROSS)" \
AFLAGS_KERNEL="$(EXTRA_FLAGS)" \
CFLAGS_KERNEL="$(EXTRA_FLAGS)" \
CFLAGS_MODULE="$(EXTRA_FLAGS)" \
KBUILD_BUILD_USER=$(notdir $(linux_kconfig)) \
KBUILD_BUILD_HOST=linuxboot \
KBUILD_BUILD_TIMESTAMP="1970-00-00" \
KBUILD_BUILD_VERSION=0 \
$(MAKE_JOBS) \
# We cross compile linux now
linux_depends := musl-cross-make
#
# Linux kernel module installation
#
# This is special cases since we have to do a special strip operation on
# the kernel modules to make them fit into the ROM image.
#
module_initrd_dir := $(shell mktemp -d)
module_initrd_lib_dir := $(module_initrd_dir)/lib/modules
FOO := $(shell mkdir -p "$(module_initrd_lib_dir)")
define linux_module =
# Each module depends on building the Linux kernel
$(build)/$(linux_dir)/$1: $(build)/$(linux_dir)/$(linux_output)
# 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
$(call do,INSTALL-MODULE,$1, \
$(CROSS)strip \
--preserve-dates \
--strip-debug \
-o "$$@" \
"$$<" \
)
endef
$(call map,linux_module,$(linux_modules-y))
# We can't rebuild the module initrd until the kernel has been rebuilt
$(build)/$(BOARD)/modules.cpio: $(build)/$(linux_dir)/.build
$(call do-cpio,$@,$(module_initrd_dir))
@$(RM) -rf "$(module_initrd_dir)"
# The output of the linux.intermediate is usually the bzImage in the
# linux build directory. We need to copy it into our board
# specific directory for ease of locating it later.
$(build)/$(BOARD)/$(LINUX_IMAGE_FILE): $(build)/$(linux_dir)/.build
$(call do-copy,$(dir $<)/$(linux_output),$@)
@touch $@ # force a timestamp update
@sha256sum "$@" | tee -a "$(HASHES)"
@stat -c "%8s:%n" "$@" | tee -a "$(SIZES)"
# Build kernel second time, now that initrd is built.
$(build)/$(BOARD)/$(LINUX_IMAGE_FILE).bundled: \
$(build)/$(initrd_dir)/initrd.cpio.xz \
$(build)/$(BOARD)/$(LINUX_IMAGE_FILE)
xz --decompress --stdout --force "$<" > $(build)/$(initrd_dir)/initrd.cpio
$(MAKE) -C "$(build)/$(linux_dir)" $(linux_target)
$(call do-copy,$(build)/$(linux_dir)/$(linux_output),$@)
@touch $@ # force a timestamp update
@sha256sum "$@" | tee -a "$(HASHES)"
# If loadkeys is shipped, include the actual default keymap used by the kernel,
# so loadkeys --default really resets the keymap to the default state.
ifeq "$(CONFIG_KBD_LOADKEYS)" "y"
$(build)/$(linux_base_dir)/drivers/tty/vt/defkeymap.map: $(build)/$(linux_base_dir)/.canary
linux_data += \
$(build)/$(linux_base_dir)/drivers/tty/vt/defkeymap.map|share/keymaps/defkeymap.map
endif
# modify_and_save_defconfig_in_place target allows us edit current in tree config
# under linux decompressed+patched directory through menuconfig
# and put it back in git tree to check changes with git difftool iteratively
linux.modify_and_save_defconfig_in_place:
cp "$(pwd)/$(linux_kconfig)" "$(build)/$(linux_dir)/.config" && \
$(MAKE) \
-C "$(build)/$(linux_base_dir)" \
O="$(build)/$(linux_dir)" \
ARCH="$(LINUX_ARCH)" \
CROSS_COMPILE="$(CROSS)" \
menuconfig && \
$(MAKE) \
-C "$(build)/$(linux_base_dir)" \
O="$(build)/$(linux_dir)" \
ARCH="$(LINUX_ARCH)" \
CROSS_COMPILE="$(CROSS)" \
savedefconfig \
&& mv "$(build)/$(linux_dir)/defconfig" "$(pwd)/$(linux_kconfig)"
# modify_and_save_oldconfig_in_place target allows us edit current in tree config
# under linux decompressed+patched directory through menuconfig
# and put it back in git tree to check changes with git difftool iteratively
linux.modify_and_save_oldconfig_in_place:
mkdir -p "$(build)/$(linux_dir)" \
&& cp "$(pwd)/$(linux_kconfig)" "$(build)/$(linux_dir)/.config" \
&& $(MAKE) -C "$(build)/$(linux_base_dir)" \
O="$(build)/$(linux_dir)" \
ARCH="$(LINUX_ARCH)" \
CROSS_COMPILE="$(CROSS)" \
menuconfig \
&& $(MAKE) -C "$(build)/$(linux_base_dir)" \
O="$(build)/$(linux_dir)" \
ARCH="$(LINUX_ARCH)" \
CROSS_COMPILE="$(CROSS)" \
olddefconfig \
&& mv "$(build)/$(linux_dir)/.config" "$(pwd)/$(linux_kconfig)"
#Add some tooling to permit us to keep track of what we currently use.
# save_in_defconfig_format_in_place: regenerate a defconfig from current board linux config and overwrites it
# save_in_versioned_defconfig_format: same as avove but doesn't overwrite: writes it in seperate versioned file
# same for oldconfig
linux.save_in_defconfig_format_in_place:
mkdir -p "$(build)/$(linux_dir)" \
&& cp "$(pwd)/$(linux_kconfig)" "$(build)/$(linux_dir)/.config" \
&& $(MAKE) -C "$(build)/$(linux_base_dir)" \
O="$(build)/$(linux_dir)" \
ARCH="$(LINUX_ARCH)" \
CROSS_COMPILE="$(CROSS)" \
savedefconfig \
&& mv "$(build)/$(linux_dir)/defconfig" "$(pwd)/$(linux_kconfig)"
linux.save_in_versioned_defconfig_format:
mkdir -p "$(build)/$(linux_dir)" \
&& cp "$(pwd)/$(linux_kconfig)" "$(build)/$(linux_dir)/.config" \
&& $(MAKE) -C "$(build)/$(linux_base_dir)" \
O="$(build)/$(linux_dir)" \
ARCH="$(LINUX_ARCH)" \
CROSS_COMPILE="$(CROSS)" \
savedefconfig \
&& mv "$(build)/$(linux_dir)/defconfig" "$(pwd)/$(linux_kconfig)_defconfig_$(CONFIG_LINUX_VERSION)"
# This one can be used in kernel version bump, which will accept all new defconfig options for the new version.
# PLEASE VERIFY CHANGES AND KEEP THINGS MINIMAL IN PRs.
linux.save_in_olddefconfig_format_in_place:
mkdir -p "$(build)/$(linux_dir)" \
&& cp "$(pwd)/$(linux_kconfig)" "$(build)/$(linux_dir)/.config" \
&& $(MAKE) -C "$(build)/$(linux_base_dir)" \
O="$(build)/$(linux_dir)" \
ARCH="$(LINUX_ARCH)" \
CROSS_COMPILE="$(CROSS)" \
olddefconfig \
&& mv "$(build)/$(linux_dir)/.config" "$(pwd)/$(linux_kconfig)"
linux.save_in_versioned_oldconfig:
mkdir -p "$(build)/$(linux_dir)" \
&& cp "$(pwd)/$(linux_kconfig)" "$(build)/$(linux_dir)/.config" \
&& $(MAKE) -C "$(build)/$(linux_base_dir)" \
O="$(build)/$(linux_dir)" \
ARCH="$(LINUX_ARCH)" \
CROSS_COMPILE="$(CROSS)" \
oldconfig \
&& mv "$(build)/$(linux_dir)/.config" "$(pwd)/$(linux_kconfig)_oldconfig_$(CONFIG_LINUX_VERSION)"
# Prior of attempting to bump kernel version, call make BOARD=xyz linux.save_in_oldconfig_format_in_place
# Then bump board config's CONFIG_LINUX_VERSION. build as usual to extract new linux tarball.
# Then call make BOARD=xyz linux.prompt_for_new_config_options_for_kernel_version_bump
#The following ask new config choice for all new symbols that should be evaluated prior of creating PR
# Tip: Open a browser at https://www.kernelconfig.io/index.html
linux.prompt_for_new_config_options_for_kernel_version_bump:
mkdir -p "$(build)/$(linux_dir)" \
&& cp "$(pwd)/$(linux_kconfig)" "$(build)/$(linux_dir)/.config" \
&& $(MAKE) -C "$(build)/$(linux_base_dir)" \
O="$(build)/$(linux_dir)" \
ARCH="$(LINUX_ARCH)" \
CROSS_COMPILE="$(CROSS)" \
oldconfig \
&& mv "$(build)/$(linux_dir)/.config" "$(pwd)/$(linux_kconfig)"
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