kbuild: Bump the build system to 5.1

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 <[email protected]>

9 files changed, 18 insertions, 18 deletions

diff --git a/board/congatec/common/Makefile b/board/congatec/common/Makefile
index f8170d9c653..7f1c8994d27 100644
--- a/board/congatec/common/Makefile
+++ b/board/congatec/common/Makefile
@@ -16,8 +16,8 @@ endif
 endif
 
 ifdef MINIMAL
-# necessary to create built-in.o
-obj- := __dummy__.o
+# necessary to create built-in.a
+obj- := __dummy__.a
 else
 
 obj-y				+= mmc.o
diff --git a/board/cssi/cmpc885/u-boot.lds b/board/cssi/cmpc885/u-boot.lds
index 53f616fcfe1..167606357e0 100644
--- a/board/cssi/cmpc885/u-boot.lds
+++ b/board/cssi/cmpc885/u-boot.lds
@@ -18,8 +18,8 @@ SECTIONS
 	{
 		arch/powerpc/cpu/mpc8xx/start.o	(.text)
 		arch/powerpc/cpu/mpc8xx/traps.o	(.text*)
-		arch/powerpc/lib/built-in.o		(.text*)
-		drivers/net/built-in.o		(.text*)
+		arch/powerpc/lib/built-in.a		(.text*)
+		drivers/net/built-in.a		(.text*)
 
 		. = DEFINED(env_offset) ? env_offset : .;
 		env/embedded.o			(.text.environment)
diff --git a/board/cssi/mcr3000/u-boot.lds b/board/cssi/mcr3000/u-boot.lds
index 24b535e724a..66afdebc0f7 100644
--- a/board/cssi/mcr3000/u-boot.lds
+++ b/board/cssi/mcr3000/u-boot.lds
@@ -18,8 +18,8 @@ SECTIONS
 	{
 		arch/powerpc/cpu/mpc8xx/start.o	(.text)
 		arch/powerpc/cpu/mpc8xx/traps.o	(.text*)
-		arch/powerpc/lib/built-in.o		(.text*)
-		drivers/net/built-in.o		(.text*)
+		arch/powerpc/lib/built-in.a		(.text*)
+		drivers/net/built-in.a		(.text*)
 
 		. = DEFINED(env_offset) ? env_offset : .;
 		env/embedded.o			(.text.environment)
diff --git a/board/freescale/common/Makefile b/board/freescale/common/Makefile
index b04e19e9428..ed102ae7bf7 100644
--- a/board/freescale/common/Makefile
+++ b/board/freescale/common/Makefile
@@ -14,8 +14,8 @@ endif
 endif
 
 ifdef MINIMAL
-# necessary to create built-in.o
-obj- := __dummy__.o
+# necessary to create built-in.a
+obj- := __dummy__.a
 else
 # include i2c_common.o once if either VID or FSL_USE_PCA9547_MUX
 I2C_COMMON=
diff --git a/board/menlo/mx8menlo/Makefile b/board/menlo/mx8menlo/Makefile
index 62939395ba1..c71fa9edfd9 100644
--- a/board/menlo/mx8menlo/Makefile
+++ b/board/menlo/mx8menlo/Makefile
@@ -16,8 +16,8 @@ endif
 
 # Common for all Toradex modules
 ifeq ($(CONFIG_XPL_BUILD),y)
-# Necessary to create built-in.o
-obj- := __dummy__.o
+# Necessary to create built-in.a
+obj- := __dummy__.a
 else
 obj-$(CONFIG_TDX_CFG_BLOCK) += ../../toradex/common/tdx-cfg-block.o
 obj-y += ../../toradex/common/tdx-common.o
diff --git a/board/phytec/common/Makefile b/board/phytec/common/Makefile
index 8126f7356e1..948f9dab626 100644
--- a/board/phytec/common/Makefile
+++ b/board/phytec/common/Makefile
@@ -3,8 +3,8 @@
 # Author: Teresa Remmet <[email protected]>
 
 ifdef CONFIG_XPL_BUILD
-# necessary to create built-in.o
-obj- := __dummy__.o
+# necessary to create built-in.a
+obj- := __dummy__.a
 endif
 
 obj-y += phytec_som_detection.o phytec_som_detection_blocks.o
diff --git a/board/samsung/origen/Makefile b/board/samsung/origen/Makefile
index 940f689a601..30c637e322a 100644
--- a/board/samsung/origen/Makefile
+++ b/board/samsung/origen/Makefile
@@ -3,8 +3,8 @@
 # Copyright (C) 2011 Samsung Electronics
 
 ifdef CONFIG_XPL_BUILD
-# necessary to create built-in.o
-obj- := __dummy__.o
+# necessary to create built-in.a
+obj- := __dummy__.a
 
 hostprogs-y := tools/mkorigenspl
 always := $(hostprogs-y)
diff --git a/board/samsung/smdkv310/Makefile b/board/samsung/smdkv310/Makefile
index b7f9d5a254c..360300a7851 100644
--- a/board/samsung/smdkv310/Makefile
+++ b/board/samsung/smdkv310/Makefile
@@ -3,8 +3,8 @@
 # Copyright (C) 2011 Samsung Electronics
 
 ifdef CONFIG_XPL_BUILD
-# necessary to create built-in.o
-obj- := __dummy__.o
+# necessary to create built-in.a
+obj- := __dummy__.a
 
 hostprogs-y := tools/mksmdkv310spl
 always := $(hostprogs-y)
diff --git a/board/toradex/common/Makefile b/board/toradex/common/Makefile
index 7e3905445a5..24496a7c997 100644
--- a/board/toradex/common/Makefile
+++ b/board/toradex/common/Makefile
@@ -3,8 +3,8 @@
 
 # Common for all Toradex modules
 ifeq ($(CONFIG_XPL_BUILD),y)
-# Necessary to create built-in.o
-obj- := __dummy__.o
+# Necessary to create built-in.a
+obj- := __dummy__.a
 else
 obj-$(CONFIG_TDX_CFG_BLOCK) += tdx-cfg-block.o
 obj-y += tdx-common.o