staging/pepe2k/include/kernel-build.mk, branch master

kernel-build.mk: Fix multi-core build warning.

2024-10-06T11:49:39Z

In the case of multi-core compilation, the warning prompts to add a "+" sign. ```` warning: jobserver unavailable: using -j1. Add `+' to parent make rule. ````` Signed-off-by: Zxl hhyccc Link: https://github.com/openwrt/openwrt/pull/16598 Signed-off-by: Robert Marko

build: fix missing SOURCE_VERSION variable

2024-07-03T11:10:08Z

The recipe Download/git-kernel uses DownloadMethod/git which now requires a definition of SOURCE_VERSION instead of VERSION due to Validate/git being used to check for the variables. Rename the variable as intended to match with the others that were renamed in the referenced commit. This fixes the following Makefile parse error when downloading a specific kernel repository version when configured with the CONFIG_KERNEL_GIT_CLONE_URI option: Makefile:19: *** Download/git-kernel is missing the SOURCE_VERSION field.. Stop. Fixes: 9fc79e2e2 ("download: don't overwrite VERSION variable") Signed-off-by: Michael Pratt Link: https://github.com/openwrt/openwrt/pull/15858 Signed-off-by: Christian Marangi

kernel-build.mk: add support for compiling only DTS

2024-02-08T18:57:28Z

Add support for compiling DTS for the selected target. This can be useful for testing if the DTS correctly compile and doesn't produce any error. This adds a new make target. To compile only DTS use: make target/linux/dtb Signed-off-by: Christian Marangi

kernel: copy only *.ko for debug info

2024-01-07T15:56:05Z

Previous commits installed non-elf files into /lib/modules/$VER/. COLLECT_KERNEL_DEBUG tries to strip all files and these two files break the build. Fix it by copying only kernel modules for debug info collection. Fixes: e1d8e57614 ("kernel: include modinfo for built-in modules") Fixes: 29f6da4340 ("kernel: include built-in module list") Signed-off-by: Chuanhong Guo

build: make find_md5 reproducible with AUTOREMOVE

2022-09-30T20:26:51Z

While experimenting with the AUTOREMOVE option in search of a way to use prebuilt host tools in different buildroot, it was discovered that the md5 generated by find_md5 in depends.mk is not reproducible. Currently the hash is generated by the path of the file in addition to the file mod time. Out of confusion, probably, there was an idea that such command was used on the package build_dir. Reality is that this command is run on the package files. (Makefile, patches, src) This is problematic because the package Makefile (for example) change at each git clone and base the hash on the Makefile mtime doesn't really reflect if the Makefile actually changes across a buildroot or not. A better approach is to generate an hash of each file and then generate an hash on the sort hash list. This way we remove the problem of git clone setting a wrong mtime while keeping the integrity of checking if a file changed for the package as any change will result in a different hash. Introduce a new kind of find_md5 function, find_md5_reproducible that apply this new logic and limit it only with AUTOREMOVE option set to prevent any kind of slowdown due to additional hash generation. Signed-off-by: Christian Marangi

build: drop HOST_LOADLIBES

2022-05-18T10:32:06Z

HOST_LOADLIBES was renamed to KBUILD_HOSTLDLIBS in kernel 4.19. As the oldest kernel version we support is 5.10, cleanup HOST_LOADLIBES use. Signed-off-by: Stijn Tintel

generic: Kconfig: exit on unset symbol

2021-08-10T11:14:52Z

When a target configuration has unser Kconfig symbols, the build will fail when OpenWrt is compiled with V=s and stdin is connected to a tty. In case OpenWrt is compiled without either of these preconditions, the build will uscceed with the symbols in question being unset. Modify the kernel configuration in a way it fails on unset symbols regardless of the aformentioned preconditions. Signed-off-by: David Bauer

build: use SPDX license tags

2021-02-05T13:54:47Z

The license folder is a core part of OpenWrt and all GPL-2.0 licensed. Use SPDX license tags to allow machines to check licenses. Signed-off-by: Paul Spooren [rebase, keep some Copyright lines, sharpen commit message] Signed-off-by: Adrian Schmutzler

kernel-build: fix STRIP_KERNEL_EXPORTS for 64-bit kernels

2021-01-01T18:55:59Z

While parsing the nm output, we need to account for the fact that 64-bit kernels have 64-bit wide addresses. While at it, replace the grep | sed combo with a single awk invocation and a stronger regex. Fixes: 2ef0acc5fcda557fa5aaad35d27cb8cf75be96d2 "kernel-build: fix STRIP_KERNEL_EXPORTS for recent kernels" Signed-off-by: Rui Salvaterra

build: create $(PKG_SYMVERS_DIR) if non-existent

2020-11-19T17:52:15Z

Commit 5d76065 moved the creation of the symvers directory to include/kernel-build.mk. This is fine when building from scratch. But when unpacking an SDK the directory doesn't exist and because the kernel won't be built (again) this directory will not be created by the build system, causing build failure if make tries to copy files into it. This moves the creation of the symvers directory back into include/kernel.mk so that the directory is created in any case. Signed-off-by: Sebastian Kemper