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heads/modules/linux

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build the linux kernel after building the initrd
2016-08-03 01:23:18 +00:00
modules += linux
use Linux 4.9.7 kernel (issue #103)
2017-02-01 16:47:43 +00:00
linux_version := 4.9.7
build the linux kernel after building the initrd
2016-08-03 01:23:18 +00:00
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)
allow linux 4.7 to be selected
2016-08-05 16:24:16 +00:00
use Linux 4.9.7 kernel (issue #103)
2017-02-01 16:47:43 +00:00
linux-4.9.7_hash := 0b61283b71c7397cb6b5ac3497845d3cdf8137ecd16ab39c8ac6cf5bb90e33dc
allow linux 4.7 to be selected
2016-08-05 16:24:16 +00:00
linux_hash := $(linux-$(linux_version)_hash)
build the linux kernel after building the initrd
2016-08-03 01:23:18 +00:00
bootstrap the musl-libc gcc cross compiler and use it to build everything except coreboot
2017-01-27 22:55:44 +00:00
linux_configure := \
$(MAKE) \
CROSS_COMPILE=$(pwd)/crossgcc/x86_64-linux-musl/bin/x86_64-linux-musl- \
oldconfig \
build the linux kernel after building the initrd
2016-08-03 01:23:18 +00:00
linux_output := arch/x86/boot/bzImage
Make coreboot building modular to support multiple boards. This touches most of the module configurations since the coreboot build process had to add a few new features. The Linux kernel could make use of it as well if we need separate x230/chell/qemu kernels, for instance.
2016-11-23 17:11:08 +00:00
linux_config := linux.config
bootstrap the musl-libc gcc cross compiler and use it to build everything except coreboot
2017-01-27 22:55:44 +00:00
Change ethernet drivers to be modules and measure them when they are loaded. This is a step towards unifying the server and laptop config (issue #139) and also makes it possible to later remove the USB modules from the normal boot path.
2017-03-28 20:32:58 +00:00
linux_modules := \
drivers/net/ethernet/intel/e1000/e1000.ko \
drivers/net/ethernet/intel/e1000e/e1000e.ko \
make USB a module, strip debug info (issue #139)
2017-03-28 21:05:04 +00:00
drivers/usb/host/xhci-hcd.ko \
drivers/usb/host/ehci-platform.ko \
drivers/usb/host/ehci-hcd.ko \
drivers/usb/host/xhci-plat-hcd.ko \
drivers/usb/host/xhci-pci.ko \
drivers/usb/host/ehci-pci.ko \
Change ethernet drivers to be modules and measure them when they are loaded. This is a step towards unifying the server and laptop config (issue #139) and also makes it possible to later remove the USB modules from the normal boot path.
2017-03-28 20:32:58 +00:00
pass in flags to make Linux kernel reproducible (issue #94)
2017-01-28 23:38:29 +00:00
EXTRA_FLAGS := -fdebug-prefix-map=$(pwd)=heads -gno-record-gcc-switches
bootstrap the musl-libc gcc cross compiler and use it to build everything except coreboot
2017-01-27 22:55:44 +00:00
linux_target := \
CROSS_COMPILE=$(pwd)/crossgcc/x86_64-linux-musl/bin/x86_64-linux-musl- \
pass in flags to make Linux kernel reproducible (issue #94)
2017-01-28 23:38:29 +00:00
AFLAGS_KERNEL="$(EXTRA_FLAGS)" \
CFLAGS_KERNEL="$(EXTRA_FLAGS)" \
CFLAGS_MODULE="$(EXTRA_FLAGS)" \
KBUILD_BUILD_USER=user \
KBUILD_BUILD_HOST=heads-build \
KBUILD_BUILD_TIMESTAMP="1970-00-00" \
KBUILD_BUILD_VERSION=0 \
parameterize number of parallel make jobs (issue #125)
2017-03-17 17:18:27 +00:00
-j $(MAKE_JOBS) \
Linux kernel depends on musl-cross (issue #130)
2017-03-20 18:52:03 +00:00
# We cross compile linux now
linux_depends := $(musl_dep)
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