armbian-build/patch/kernel/archive/sunxi-6.11/patches.armbian/scripts-add-overlay-compila...

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From 9834ff87ee93495982c223bea78206bda5955e89 Mon Sep 17 00:00:00 2001
From: The-going <48602507+The-going@users.noreply.github.com>
Date: Tue, 1 Feb 2022 21:04:08 +0300
Subject: scripts: add overlay compilation support
---
.gitignore | 1 +
scripts/Makefile.dtbinst | 12 +++++++++++-
scripts/Makefile.lib | 12 +++++++++++-
3 files changed, 23 insertions(+), 2 deletions(-)
diff --git a/.gitignore b/.gitignore
index 58fdbb35e2f1..0d683e66d33b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -42,6 +42,7 @@
*.rpm
*.rsi
*.s
+*.scr
*.so
*.so.dbg
*.su
diff --git a/scripts/Makefile.dtbinst b/scripts/Makefile.dtbinst
index 9d920419a62c..d0703c2148cf 100644
--- a/scripts/Makefile.dtbinst
+++ b/scripts/Makefile.dtbinst
@@ -23,6 +23,11 @@ $(dst)/%: $(obj)/%
$(call cmd,dtb_install)
dtbs := $(patsubst $(obj)/%,%,$(call read-file, $(obj)/dtbs-list))
+vendor := $(sort $(dir $(filter %.dtb, $(dtbs))))
+subdir := $(sort $(dir $(filter %.dtbo, $(dtbs))))
+
+dtbs += $(patsubst $(obj)/%,%,$(if $(subdir), $(shell cd $(srctree)/$(obj) && find $(subdir) -name '*.scr')))
+dtbs += $(patsubst $(obj)/%,%,$(if $(subdir), $(shell cd $(srctree)/$(obj) && find $(subdir) -name 'README.*-overlays')))
ifdef CONFIG_ARCH_WANT_FLAT_DTB_INSTALL
@@ -33,7 +38,12 @@ endef
$(foreach d, $(sort $(dir $(dtbs))), $(eval $(call gen_install_rules,$(d))))
-dtbs := $(notdir $(dtbs))
+# Armbian uses subdirectories <overlay> for arm
+# and <allwinner/overlay> for arm64.
+# delete the vendor's directory if the target architecture is an arm.
+ifdef CONFIG_ARM
+dtbs := $(patsubst $(vendor)%,%,$(dtbs))
+endif
endif # CONFIG_ARCH_WANT_FLAT_DTB_INSTALL
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 207325eaf1d1..870cfa0ea443 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -93,6 +93,9 @@ base-dtb-y := $(filter %.dtb, $(call real-search, $(multi-dtb-y), .dtb, -dtbs))
always-y += $(dtb-y)
+# Overlay Fixup script targets
+extra-y += $(scr-y) $(dtbotxt-y)
+
# Add subdir path
ifneq ($(obj),.)
@@ -374,7 +377,8 @@ DTC_FLAGS += -Wnode_name_chars_strict \
-Wunique_unit_address
endif
-DTC_FLAGS += $(DTC_FLAGS_$(target-stem))
+DTC_FLAGS += $(DTC_FLAGS_$(target-stem)) \
+ -@
# Set -@ if the target is a base DTB that overlay is applied onto
DTC_FLAGS += $(if $(filter $(patsubst $(obj)/%,%,$@), $(base-dtb-y)), -@)
@@ -436,6 +440,12 @@ $(obj)/%.dtb: $(obj)/%.dts $(DTC) $(DT_TMP_SCHEMA) FORCE
$(obj)/%.dtbo: $(src)/%.dtso $(DTC) FORCE
$(call if_changed_dep,dtc)
+quiet_cmd_scr = MKIMAGE $@
+ cmd_scr = mkimage -C none -A $(ARCH) -T script -d $< $@
+
+$(obj)/%.scr: $(src)/%.scr-cmd FORCE
+ $(call if_changed,scr)
+
dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
# Bzip2
--
2.35.3