[PATCH 1/5] kbuild: require all architectures to have arch/$(SRCARCH)/Kbuild

From: Masahiro Yamada
Date: Wed May 12 2021 - 04:04:38 EST

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arch/$(SRCARCH)/Kbuild is useful for Makefile cleanups because you can
use the obj-y syntax.

Add an empty file if it is missing in arch/$(SRCARCH)/.

Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
---

Makefile | 2 +-
arch/alpha/Kbuild | 1 +
arch/arc/Makefile | 3 ---
arch/arm/Makefile | 1 -
arch/arm64/Makefile | 1 -
arch/csky/Kbuild | 1 +
arch/h8300/Kbuild | 1 +
arch/hexagon/Kbuild | 1 +
arch/ia64/Kbuild | 1 +
arch/microblaze/Kbuild | 1 +
arch/mips/Makefile | 3 ---
arch/nds32/Kbuild | 1 +
arch/nios2/Kbuild | 1 +
arch/openrisc/Makefile | 1 -
arch/parisc/Kbuild | 1 +
arch/powerpc/Makefile | 3 ---
arch/riscv/Makefile | 1 -
arch/s390/Makefile | 3 ---
arch/sh/Kbuild | 1 +
arch/sparc/Makefile | 3 ---
arch/um/Kbuild | 1 +
arch/x86/Makefile | 3 ---
arch/xtensa/Kbuild | 1 +
23 files changed, 13 insertions(+), 23 deletions(-)
create mode 100644 arch/alpha/Kbuild
create mode 100644 arch/csky/Kbuild
create mode 100644 arch/h8300/Kbuild
create mode 100644 arch/hexagon/Kbuild
create mode 100644 arch/ia64/Kbuild
create mode 100644 arch/microblaze/Kbuild
create mode 100644 arch/nds32/Kbuild
create mode 100644 arch/nios2/Kbuild
create mode 100644 arch/parisc/Kbuild
create mode 100644 arch/sh/Kbuild
create mode 100644 arch/um/Kbuild
create mode 100644 arch/xtensa/Kbuild

diff --git a/Makefile b/Makefile
index 15b6476d0f89..7df040b1b023 100644
--- a/Makefile
+++ b/Makefile
@@ -658,7 +658,7 @@ endif

ifeq ($(KBUILD_EXTMOD),)
# Objects we will link into vmlinux / subdirs we need to visit
-core-y := init/ usr/
+core-y := init/ usr/ arch/$(SRCARCH)/
drivers-y := drivers/ sound/
drivers-$(CONFIG_SAMPLES) += samples/
drivers-$(CONFIG_NET) += net/
diff --git a/arch/alpha/Kbuild b/arch/alpha/Kbuild
new file mode 100644
index 000000000000..a4e40e534e6a
--- /dev/null
+++ b/arch/alpha/Kbuild
@@ -0,0 +1 @@
+# SPDX-License-Identifier: GPL-2.0-only
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index 4392c9c189c4..3e6d4b84797f 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -85,9 +85,6 @@ KBUILD_LDFLAGS += $(ldflags-y)

head-y := arch/arc/kernel/head.o

-# See arch/arc/Kbuild for content of core part of the kernel
-core-y += arch/arc/
-
# w/o this dtb won't embed into kernel binary
core-y += arch/arc/boot/dts/

diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 415c3514573a..173da685a52e 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -252,7 +252,6 @@ endif

export TEXT_OFFSET GZFLAGS MMUEXT

-core-y += arch/arm/
# If we have a machine-specific directory, then include it in the build.
core-y += $(machdirs) $(platdirs)

diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 7ef44478560d..b73c151f3a53 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -149,7 +149,6 @@ KBUILD_CFLAGS += -DKASAN_SHADOW_SCALE_SHIFT=$(KASAN_SHADOW_SCALE_SHIFT)
KBUILD_CPPFLAGS += -DKASAN_SHADOW_SCALE_SHIFT=$(KASAN_SHADOW_SCALE_SHIFT)
KBUILD_AFLAGS += -DKASAN_SHADOW_SCALE_SHIFT=$(KASAN_SHADOW_SCALE_SHIFT)

-core-y += arch/arm64/
libs-y := arch/arm64/lib/ $(libs-y)
libs-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a

diff --git a/arch/csky/Kbuild b/arch/csky/Kbuild
new file mode 100644
index 000000000000..a4e40e534e6a
--- /dev/null
+++ b/arch/csky/Kbuild
@@ -0,0 +1 @@
+# SPDX-License-Identifier: GPL-2.0-only
diff --git a/arch/h8300/Kbuild b/arch/h8300/Kbuild
new file mode 100644
index 000000000000..a4e40e534e6a
--- /dev/null
+++ b/arch/h8300/Kbuild
@@ -0,0 +1 @@
+# SPDX-License-Identifier: GPL-2.0-only
diff --git a/arch/hexagon/Kbuild b/arch/hexagon/Kbuild
new file mode 100644
index 000000000000..a4e40e534e6a
--- /dev/null
+++ b/arch/hexagon/Kbuild
@@ -0,0 +1 @@
+# SPDX-License-Identifier: GPL-2.0-only
diff --git a/arch/ia64/Kbuild b/arch/ia64/Kbuild
new file mode 100644
index 000000000000..a4e40e534e6a
--- /dev/null
+++ b/arch/ia64/Kbuild
@@ -0,0 +1 @@
+# SPDX-License-Identifier: GPL-2.0-only
diff --git a/arch/microblaze/Kbuild b/arch/microblaze/Kbuild
new file mode 100644
index 000000000000..a4e40e534e6a
--- /dev/null
+++ b/arch/microblaze/Kbuild
@@ -0,0 +1 @@
+# SPDX-License-Identifier: GPL-2.0-only
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 258234c35a09..4e942b7ef022 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -332,9 +332,6 @@ head-y := arch/mips/kernel/head.o
libs-y += arch/mips/lib/
libs-$(CONFIG_MIPS_FP_SUPPORT) += arch/mips/math-emu/

-# See arch/mips/Kbuild for content of core part of the kernel
-core-y += arch/mips/
-
drivers-y += arch/mips/crypto/

# suspend and hibernation support
diff --git a/arch/nds32/Kbuild b/arch/nds32/Kbuild
new file mode 100644
index 000000000000..a4e40e534e6a
--- /dev/null
+++ b/arch/nds32/Kbuild
@@ -0,0 +1 @@
+# SPDX-License-Identifier: GPL-2.0-only
diff --git a/arch/nios2/Kbuild b/arch/nios2/Kbuild
new file mode 100644
index 000000000000..a4e40e534e6a
--- /dev/null
+++ b/arch/nios2/Kbuild
@@ -0,0 +1 @@
+# SPDX-License-Identifier: GPL-2.0-only
diff --git a/arch/openrisc/Makefile b/arch/openrisc/Makefile
index 410e7abfac69..c52de526e518 100644
--- a/arch/openrisc/Makefile
+++ b/arch/openrisc/Makefile
@@ -42,7 +42,6 @@ endif

head-y := arch/openrisc/kernel/head.o

-core-y += arch/openrisc/
libs-y += $(LIBGCC)

PHONY += vmlinux.bin
diff --git a/arch/parisc/Kbuild b/arch/parisc/Kbuild
new file mode 100644
index 000000000000..a4e40e534e6a
--- /dev/null
+++ b/arch/parisc/Kbuild
@@ -0,0 +1 @@
+# SPDX-License-Identifier: GPL-2.0-only
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 3212d076ac6a..af669aa75b73 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -267,9 +267,6 @@ head-$(CONFIG_PPC_FPU) += arch/powerpc/kernel/fpu.o
head-$(CONFIG_ALTIVEC) += arch/powerpc/kernel/vector.o
head-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += arch/powerpc/kernel/prom_init.o

-# See arch/powerpc/Kbuild for content of core part of the kernel
-core-y += arch/powerpc/
-
# Default to zImage, override when needed
all: zImage

diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
index 3eb9590a0775..c5f359540862 100644
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -90,7 +90,6 @@ endif

head-y := arch/riscv/kernel/head.o

-core-y += arch/riscv/
core-$(CONFIG_RISCV_ERRATA_ALTERNATIVE) += arch/riscv/errata/

libs-y += arch/riscv/lib/
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index e443ed9947bd..37b61645694c 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -128,9 +128,6 @@ OBJCOPYFLAGS := -O binary

head-y := arch/s390/kernel/head64.o

-# See arch/s390/Kbuild for content of core part of the kernel
-core-y += arch/s390/
-
libs-y += arch/s390/lib/
drivers-y += drivers/s390/

diff --git a/arch/sh/Kbuild b/arch/sh/Kbuild
new file mode 100644
index 000000000000..a4e40e534e6a
--- /dev/null
+++ b/arch/sh/Kbuild
@@ -0,0 +1 @@
+# SPDX-License-Identifier: GPL-2.0-only
diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile
index bee99e65fe23..4e65245bc755 100644
--- a/arch/sparc/Makefile
+++ b/arch/sparc/Makefile
@@ -58,9 +58,6 @@ endif

head-y := arch/sparc/kernel/head_$(BITS).o

-# See arch/sparc/Kbuild for the core part of the kernel
-core-y += arch/sparc/
-
libs-y += arch/sparc/prom/
libs-y += arch/sparc/lib/

diff --git a/arch/um/Kbuild b/arch/um/Kbuild
new file mode 100644
index 000000000000..a4e40e534e6a
--- /dev/null
+++ b/arch/um/Kbuild
@@ -0,0 +1 @@
+# SPDX-License-Identifier: GPL-2.0-only
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index c77c5d8a7b3e..4307bf48ec53 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -239,9 +239,6 @@ head-y += arch/x86/kernel/platform-quirks.o

libs-y += arch/x86/lib/

-# See arch/x86/Kbuild for content of core part of the kernel
-core-y += arch/x86/
-
# drivers-y are linked after core-y
drivers-$(CONFIG_MATH_EMULATION) += arch/x86/math-emu/
drivers-$(CONFIG_PCI) += arch/x86/pci/
diff --git a/arch/xtensa/Kbuild b/arch/xtensa/Kbuild
new file mode 100644
index 000000000000..a4e40e534e6a
--- /dev/null
+++ b/arch/xtensa/Kbuild
@@ -0,0 +1 @@
+# SPDX-License-Identifier: GPL-2.0-only
--
2.27.0

Next message: David Laight: "RE: [PATCH 3/6] x86/sev-es: Use __put_user()/__get_user"
Previous message: Ard Biesheuvel: "Re: [PATCH v4 0/4] arm64: drop pfn_valid_within() and simplify pfn_valid()"
Next in thread: Masahiro Yamada: "[PATCH 4/5] hexagon: move core-y in arch/hexagon/Makefile to arch/hexagon/Kbuild"
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