ARM: 9154/1: decompressor: do not copy source files while building

As commit 7ae4a78daacf ("ARM: 8969/1: decompressor: simplify libfdt
builds") stated, copying source files during the build time may not
end up with as clean code as expected.

Do similar for the other library files for further cleanups of the
Makefile and .gitignore.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>

diff --git a/arch/arm/boot/compressed/.gitignore b/arch/arm/boot/compressed/.gitignore
index 60606b0..d32f417 100644 (file)
--- a/arch/arm/boot/compressed/.gitignore
+++ b/arch/arm/boot/compressed/.gitignore
@@ -1,9 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0-only
-ashldi3.S
-bswapsdi2.S
-font.c
-lib1funcs.S
-hyp-stub.S
 piggy_data
 vmlinux
 vmlinux.lds

diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index 91265e7..74d2f14 100644 (file)
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -13,7 +13,6 @@ ifeq ($(CONFIG_DEBUG_UNCOMPRESS),y)
 OBJS   += debug.o
 AFLAGS_head.o += -DDEBUG
 endif
-FONTC  = $(srctree)/lib/fonts/font_acorn_8x8.c
 
 # string library code (-Os is enforced to keep it much smaller)
 OBJS           += string.o
@@ -99,11 +98,8 @@ $(foreach o, $(libfdt_objs) atags_to_fdt.o fdt_check_mem_start.o, \
        $(eval CFLAGS_$(o) := -I $(srctree)/scripts/dtc/libfdt -fno-stack-protector))
 
 targets       := vmlinux vmlinux.lds piggy_data piggy.o \
-                lib1funcs.o ashldi3.o bswapsdi2.o \
                 head.o $(OBJS)
 
-clean-files += lib1funcs.S ashldi3.S bswapsdi2.S hyp-stub.S
-
 KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
 
 ccflags-y := -fpic $(call cc-option,-mno-single-pic-base,) -fno-builtin \
@@ -134,23 +130,7 @@ endif
 # Next argument is a linker script
 LDFLAGS_vmlinux += -T
 
-# For __aeabi_uidivmod
-lib1funcs = $(obj)/lib1funcs.o
-
-$(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S
-       $(call cmd,shipped)
-
-# For __aeabi_llsl
-ashldi3 = $(obj)/ashldi3.o
-
-$(obj)/ashldi3.S: $(srctree)/arch/$(SRCARCH)/lib/ashldi3.S
-       $(call cmd,shipped)
-
-# For __bswapsi2, __bswapdi2
-bswapsdi2 = $(obj)/bswapsdi2.o
-
-$(obj)/bswapsdi2.S: $(srctree)/arch/$(SRCARCH)/lib/bswapsdi2.S
-       $(call cmd,shipped)
+OBJS   += lib1funcs.o ashldi3.o bswapsdi2.o
 
 # We need to prevent any GOTOFF relocs being used with references
 # to symbols in the .bss section since we cannot relocate them
@@ -175,8 +155,8 @@ fi
 efi-obj-$(CONFIG_EFI_STUB) := $(objtree)/drivers/firmware/efi/libstub/lib.a
 
 $(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.o \
-               $(addprefix $(obj)/, $(OBJS)) $(lib1funcs) $(ashldi3) \
-               $(bswapsdi2) $(efi-obj-y) FORCE
+               $(addprefix $(obj)/, $(OBJS)) \
+               $(efi-obj-y) FORCE
        @$(check_for_multiple_zreladdr)
        $(call if_changed,ld)
        @$(check_for_bad_syms)
@@ -187,11 +167,4 @@ $(obj)/piggy_data: $(obj)/../Image FORCE
 $(obj)/piggy.o: $(obj)/piggy_data
 
 CFLAGS_font.o := -Dstatic=
-
-$(obj)/font.c: $(FONTC)
-       $(call cmd,shipped)
-
 AFLAGS_hyp-stub.o := -Wa,-march=armv7-a
-
-$(obj)/hyp-stub.S: $(srctree)/arch/$(SRCARCH)/kernel/hyp-stub.S
-       $(call cmd,shipped)

diff --git a/arch/arm/boot/compressed/ashldi3.S b/arch/arm/boot/compressed/ashldi3.S
new file mode 100644 (file)
index 0000000..216f82e
--- /dev/null
+++ b/arch/arm/boot/compressed/ashldi3.S
@@ -0,0 +1,3 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* For __aeabi_llsl */
+#include "../../lib/ashldi3.S"

diff --git a/arch/arm/boot/compressed/bswapsdi2.S b/arch/arm/boot/compressed/bswapsdi2.S
new file mode 100644 (file)
index 0000000..b2156b3
--- /dev/null
+++ b/arch/arm/boot/compressed/bswapsdi2.S
@@ -0,0 +1,3 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* For __bswapsi2, __bswapdi2 */
+#include "../../lib/bswapsdi2.S"

diff --git a/arch/arm/boot/compressed/font.c b/arch/arm/boot/compressed/font.c
new file mode 100644 (file)
index 0000000..46a6776
--- /dev/null
+++ b/arch/arm/boot/compressed/font.c
@@ -0,0 +1,2 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include "../../../../lib/fonts/font_acorn_8x8.c"

diff --git a/arch/arm/boot/compressed/hyp-stub.S b/arch/arm/boot/compressed/hyp-stub.S
new file mode 100644 (file)
index 0000000..a703eaa
--- /dev/null
+++ b/arch/arm/boot/compressed/hyp-stub.S
@@ -0,0 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#include "../../kernel/hyp-stub.S"

diff --git a/arch/arm/boot/compressed/lib1funcs.S b/arch/arm/boot/compressed/lib1funcs.S
new file mode 100644 (file)
index 0000000..815dec7
--- /dev/null
+++ b/arch/arm/boot/compressed/lib1funcs.S
@@ -0,0 +1,3 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* For __aeabi_uidivmod */
+#include "../../lib/lib1funcs.S"

diff --git a/scripts/remove-stale-files b/scripts/remove-stale-files
index 0114c41..f0d5322 100755 (executable)
--- a/scripts/remove-stale-files
+++ b/scripts/remove-stale-files
@@ -24,7 +24,7 @@ set -e
 # with O=, make sure to remove the stale files in the output tree. Otherwise,
 # the build system wrongly compiles the stale ones.
 if [ -n "${building_out_of_srctree}" ]; then
-       for f in fdt_rw.c fdt_ro.c fdt_wip.c fdt.c
+       for f in fdt_rw.c fdt_ro.c fdt_wip.c fdt.c ashldi3.S bswapsdi2.S font.c lib1funcs.S hyp-stub.S
        do
                rm -f arch/arm/boot/compressed/${f}
        done