u-boot.git/scripts/Makefile.build, branch v2026.07

kbuild: Use if_changed for font and splash .incbin rules

2026-04-21T21:56:54Z

The generated .S files for fonts and splash screens use .incbin with the full prerequisite path. When building with O= this bakes an absolute path into the .S file. If the build directory is later used on a different machine (e.g. in a container), the assembler cannot find the source file. Follow the existing DTB convention: rename the object targets to use compound suffixes (.ttf.o, .bmp.o), switch the pattern rules from direct $(call cmd,...) to FORCE + $(call if_changed,...), and register the new suffixes with intermediate_targets so that kbuild loads their .cmd files. This lets if_changed detect when the recorded command (including source paths) has changed and regenerate the .S file automatically. The EFI rule is left unchanged since its prerequisite is a generated file in the build directory, like the DTB and DTBO rules. The intermediate_targets entries stay in scripts/Makefile.build rather than moving to scripts/Makefile.lib-u-boot, because that file is included before intermediate_targets is defined and 'targets' is ':=', so a '$(call intermediate_targets, ...)' inside it would expand to empty and silently drop the entries. To keep the upstream block untouched, the U-Boot additions go in a separate 'targets +=' block immediately below. Suggested-by: Rasmus Villemoes Signed-off-by: Simon Glass Reviewed-by: Rasmus Villemoes

kbuild: Move U-Boot .incbin rules to Makefile.lib-u-boot

2026-04-21T21:56:54Z

The font, splash-screen and EFI .incbin wrapper rules are U-Boot additions that do not exist in the upstream Linux kbuild. Keeping them in scripts/Makefile.lib makes re-syncing with Linux harder than it needs to be, as every sync must manually preserve the U-Boot additions. Move these rules into a new scripts/Makefile.lib-u-boot and include it from Makefile.build and Makefile.xpl, right after the existing Makefile.lib include. This is a pure code-move with no functional change. Suggested-by: Tom Rini Signed-off-by: Simon Glass Acked-by: Ilias Apalodimas Reviewed-by: Rasmus Villemoes

kbuild: Bump the build system to 6.1

2026-01-02T16:28:14Z

Our last sync with the kernel was 5.1. We are so out of sync now, that tracking the patches and backporting them one by one makes little sense and it's going to take ages. This is an attempt to sync up Makefiles to 6.1. Unfortunately due to sheer amount of patches this is not easy to review, but that's what we decided during a community call for the bump to 5.1, so we are following the same guidelines here. Signed-off-by: Sughosh Ganu Signed-off-by: Ilias Apalodimas a #rebased on -next

kbuild: Bump the build system to 5.1

2025-07-08T19:10:03Z

Our last sync with the kernel was 5.1. Even that was a partial one as some patches from 4.x kernels were already missing making the transition to a modern kbuild infeasible. We are so out of sync now, that tracking the patches and backporting them one by one makes little sense and it's going to take ages. This is an attempt to sync up Makefile[.lib/.kbuild]. Unfortunately due to sheer amount of patches this is not easy to review, but that's what we decided during a community call. One of the biggest changes is get rid of partial linking entirely and build .a archives isntead of .o. We diaviate from the kernel on that. Instead of calling a custom script to create the archive symbol table, we call ar with rcTP (isntead of rcSTP) since we want a resulting archive that's sauble with the linker. The only affected platforms are PPC ones. Unfortunately I don't have any of them around to test, but the objdump of the resulting files -- arch/powerpc/lib/built-in.[oa] looks identical. Signed-off-by: Ilias Apalodimas

kbuild: strip whitespace in cmd_record_mcount findstring

2025-05-30T00:42:38Z

Backport from kernel commit 1a49b2fd8f58 ("kbuild: strip whitespace in cmd_record_mcount findstring") Signed-off-by: Ilias Apalodimas

kbuild: hardcode genksyms path and remove GENKSYMS variable

2025-05-30T00:42:38Z

Back port from kernel although it's not used since it makes diffing easier. commit 88110713ca9dfb ("kbuild: hardcode genksyms path and remove GENKSYMS variable") Signed-off-by: Ilias Apalodimas

kbuild: generate modules.order only when CONFIG_MODULES=y

2025-05-30T00:42:38Z

Backport from kernel although it is unused since it makes diffing easier. commit 1d8001ef358 ("kbuild: generate modules.order only when CONFIG_MODULES=y") Signed-off-by: Ilias Apalodimas

kbuild: refactor quiet_modtag

2025-05-30T00:42:37Z

Backport from kernel commit 45c4372d00 ("kbuild: refactor quiet_modtag") Signed-off-by: Ilias Apalodimas

kbuild: remove redundant quiet_modtag for $(obj-m)

2025-05-30T00:42:37Z

Backported from kernel commit b39a691617e4 commit ("kbuild: remove redundant quiet_modtag for $(obj-m)") Signed-off-by: Ilias Apalodimas

kbuild: remove redundant 'set -e' from cmd_* defines

2025-05-30T00:42:37Z

Backported from kernel commit 5439f09f488f ("kbuild: remove redundant 'set -e' from cmd_* defines") Signed-off-by: Ilias Apalodimas