u-boot.git/Kbuild, branch dependabot/pip/tools/patman/aiohttp-3.13.4

kbuild: Bump the build system to 6.1

2026-01-02T16:28:14+00:00

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

build: support building with Link Time Optimizations

2021-05-24T18:21:30+00:00

Add plumbing for building U-Boot with Link Time Optimizations.

When building with LTO, $(PLATFORM_LIBS) has to be in --whole-archive /
--no-whole-archive group, otherwise some functions declared in assembly
may not be resolved and linking may fail.

Note: clang may throw away linker list symbols it thinks are unused when
compiling with LTO. To force these symbols to be included, we refer to
them via the __ADDRESSABLE macro in a C file generated from compiled
built-in.o files before linking.

Signed-off-by: Marek Behún 
Reviewed-by: Simon Glass

kbuild: SPL/TPL: generate separate asm-offsets.h for SPL and TPL

2020-04-28T19:44:31+00:00

Currently generic-asm-offsets.h and asm-offsets.h are generated based
on U-Boot proper config options. The same asm-offsets headers are used
for building U-Boot SPL/TPL, which causes potential offset mismatch if
U-Boot proper has different config options from U-Boot SPL/TPL.

This commit adds:
  spl/include/generated/(generic-)asm-offsets.h
  tpl/include/generated/(generic-)asm-offsets.h

spl/include/generated/(generic-)asm-offsets.h is generated if
CONFIG_SPL=y, and included when building SPL.

tpl/include/generated/(generic-)asm-offsets.h is generated if
CONFIG_TPL=y, and included when building TPL.

They are created before Kbuild descends into SPL/TPL object directories
and builds $(obj)/dts/dt-platdata.o because $(obj)/dts/dt-platdata.c
includes a bunch of headers.

Prepend -I$(obj)/include to $(UBOOTINCLUDE) so (generic-)asm-offsets.h
is searched in {spl,tpl}/include/generated/.

Requested-by: Bin Meng 
Signed-off-by: Masahiro Yamada 
Tested-by: Bin Meng

kbuild: cherry-pick kbuild changes from Linux

2020-04-24T20:40:09+00:00

b42841b7bb62 kbuild: Get rid of KBUILD_STR
2aedcd098a94 kbuild: suppress annoying "... is up to date." message
9c8fa9bc08f6 kbuild: fix if_change and friends to consider argument order
ebf003f0cfb3 kbuild: Consolidate header generation from ASM offset information
2982c953570b kbuild: remove redundant $(wildcard ...) for cmd_files calculation
8a78756eb545 kbuild: create object directories simpler and faster
4d4b5c2e3b6e treewide: remove explicit rules for *offsets.s
01d509a48b46 kbuild: remove unimportant comments from ./Kbuild

Signed-off-by: Masahiro Yamada

kbuild: do not add $((generic-)offsets-file) to targets

2015-07-27T19:01:55+00:00

$(always) is added to targets by scripts/Makefile.build.
Moreover, filechk does not need .*.cmd files.

Adding these two files to targets is redundant.

Signed-off-by: Masahiro Yamada

kbuild: Don't reset timestamps in include/generated if not needed

2015-03-28T13:03:09+00:00

Use filechk to generate asm-offsets.h and generic-asm-offsets.h.
Based on a patch by Valdis Kletnieks.

Reported-by: Valdis Kletnieks 
Acked-by: Valdis Kletnieks 
Reviewed-by: Masahiro Yamada 
Signed-off-by: Michal Marek 
[ imported from Linux Kernel, commit 70a4fd6c56d0,
  with adjustment for U-Boot ]
Signed-off-by: Masahiro Yamada

kbuild: remove redundant line from (generic-)asm-offsets.h

2015-03-28T13:03:09+00:00

This line produces an extra comment line for generic-asm-offsets.h
and asm-offsets.h.

Signed-off-by: Masahiro Yamada 
Signed-off-by: Michal Marek 
[ imported from Linux Kernel, commit 343d3e6cc861,
  with modification of commit description ]
Signed-off-by: Masahiro Yamada

kbuild: merge generic-asm-offsets.h and asm-offsets.h rules

2015-03-28T13:03:09+00:00

The rules "cmd_generic-offsets" and "cmd_offsets" are almost the
same. (The difference is only the include guards.)
They can be merged.

This commit is mostly inspired by the following commit of Linux.

    commit 39664e2f3cdef98f42437e903159a6044a1d99d6
    Author: Masahiro Yamada 
    Date:   Mon Jan 5 15:57:15 2015 +0900

        kbuild: merge bounds.h and asm-offsets.h rules

Signed-off-by: Masahiro Yamada

clang: workaround for generated constants

2014-09-09T11:51:54+00:00

KBuild abuses the asm statement to write to a file and
clang chokes about these invalid asm statements. Hack it
even more by fooling this is actual valid asm code.

cc: Masahiro Yamada 
cc: Tom Rini 
Signed-off-by: Jeroen Hofstee

kbuild: move asm-offsets.c from SoC directory to arch/$(ARCH)/lib

2014-03-28T19:06:29+00:00

U-Boot has supported two kinds of asm-offsets.h.

One is generic for all architectures and its source is located at
./lib/asm-offsets.c.

The other is SoC specific and its source is under SoC directory.
The problem here is that only boards with SoC directory can use
the asm-offsets infrastructure.
Putting asm-offsets.c right under CPU directory does not work.

Now a new demand is coming. PowerPC folks want to use asm-offsets.
But no PowerPC boards have SoC directory.

It seems inconsistent that some boards add asm-offsets.c to SoC
directoreis and some to CPU directories.
It looks more reasonable to put asm-offsets.c under arch/$(ARCH)/lib.

This commit merges asm-offsets.c under SoC directories into
arch/$(ARCH)/lib/asm-offsets.c.

By the way, I doubt the necessity of some entries in asm-offsets.c.
I am leaving refactoring to the board maintainers.
Please check "TODO" in the comment blocks in
arch/{arm,nds32}/lib/asm-offsets.c.

Signed-off-by: Masahiro Yamada 
Cc: Yuantian Tang