ExternalVendorCode/openwrt
1
0
Fork 0
mirror of https://github.com/openwrt/openwrt.git synced 2025-02-20 09:26:28 +00:00
Code Issues Actions 4 Packages Projects Releases Wiki Activity

kernel: copy kernel build dir on Per-Device Initramfs compilation

Browse Source 
To speedup compilation of Per-Device Initramfs, copy the kernel build
directory for each rootfs ID.

This permits concurrent execution of kernel build without conflicting
with each other at the expense of additional disk space usage.

To limit disk space usage, the copied kernel directory is deleted after
the Per-Device Initramfs image is generated and saved.

Link: https://github.com/openwrt/openwrt/pull/16404
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
This commit is contained in:
Christian Marangi 2024-09-16 18:38:16 +02:00
parent 52cc9d82f1
commit d78dec3e19
No known key found for this signature in database
GPG Key ID: AC001D09ADBFEAD7
1 changed files with 10 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
include/kernel-defaults.mk
View File

@ -153,13 +153,13 @@ endif
# $1: image suffix
# $2: Per Device Rootfs ID
define Kernel/CopyImage
cmp -s $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux$(1).debug$(2) || { \
$(KERNEL_CROSS)objcopy -O binary $(OBJCOPY_STRIP) -S $(LINUX_DIR)/vmlinux $(LINUX_KERNEL)$(1)$(2); \
$(KERNEL_CROSS)objcopy $(OBJCOPY_STRIP) -S $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux$(1).elf$(2); \
$(CP) $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux$(1).debug$(2); \
cmp -s $(LINUX_DIR)$(2)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux$(1).debug$(2) || { \
$(KERNEL_CROSS)objcopy -O binary $(OBJCOPY_STRIP) -S $(LINUX_DIR)$(2)/vmlinux $(LINUX_KERNEL)$(1)$(2); \
$(KERNEL_CROSS)objcopy $(OBJCOPY_STRIP) -S $(LINUX_DIR)$(2)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux$(1).elf$(2); \
$(CP) $(LINUX_DIR)$(2)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux$(1).debug$(2); \
$(foreach k, \
$(if $(KERNEL_IMAGES),$(KERNEL_IMAGES),$(filter-out vmlinux dtbs,$(KERNELNAME))), \
$(CP) $(LINUX_DIR)/arch/$(LINUX_KARCH)/boot/$(IMAGES_DIR)/$(k) $(KERNEL_BUILD_DIR)/$(k)$(1)$(2); \
$(CP) $(LINUX_DIR)$(2)/arch/$(LINUX_KARCH)/boot/$(IMAGES_DIR)/$(k) $(KERNEL_BUILD_DIR)/$(k)$(1)$(2); \
) \
}
endef
@ -173,7 +173,9 @@ endef
define Kernel/PrepareConfigPerRootfs
{ \
[ ! -d "$(1)" ] || rm -rf $(1); \
mkdir $(1) && $(CP) $(LINUX_DIR)/.config $(1); \
mkdir $(1) && $(CP) -T $(LINUX_DIR) $(1); \
touch $(1)/.config; \
rm -rf $(1)/usr/initramfs_data.cpio*; \
}
endef
@ -209,10 +211,9 @@ define Kernel/CompileImage/Initramfs
$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_ZSTD), \
$(STAGING_DIR_HOST)/bin/zstd -T0 -f -o $(if $(2),$(LINUX_DIR)$(2),$(KERNEL_BUILD_DIR))/initrd.cpio.zstd $(if $(2),$(LINUX_DIR)$(2),$(KERNEL_BUILD_DIR))/initrd.cpio;) \
$(if $(2),,$(KERNEL_MAKE) $(KERNEL_MAKEOPTS_IMAGE) $(if $(KERNELNAME),$(KERNELNAME),all);),\
$(call locked,$(if $(2),$(CP) $(LINUX_DIR)$(2)/.config* $(LINUX_DIR) && touch $(LINUX_DIR)/.config && ) \
rm -rf $(LINUX_DIR)/usr/initramfs_data.cpio* $(LINUX_DIR)/.config.prev && \
$(KERNEL_MAKE) $(KERNEL_MAKEOPTS_IMAGE) $(if $(KERNELNAME),$(KERNELNAME),all), compile-initramfs);) \
$(KERNEL_MAKE) $(if $(2),-C $(LINUX_DIR)$(2)) $(KERNEL_MAKEOPTS_IMAGE) $(if $(KERNELNAME),$(KERNELNAME),all);) \
$(call Kernel/CopyImage,-initramfs,$(2)); \
$(if $(2),rm -rf $(LINUX_DIR)$(2);) \
}, gen-initramfs$(if $(2),-$(2)));
endef
else