patches/vendor/bliss/0005-Revert-vendor-bliss-Remove-kernel.mk-headers-generat.patch

From d90fac6121821ac30cd915e4a36ff107d3709b54 Mon Sep 17 00:00:00 2001
From: Jackeagle <jackeagle102@gmail.com>
Date: Mon, 3 Dec 2018 10:56:07 -0500
Subject: [PATCH 05/11] Revert "vendor/bliss: Remove kernel.mk headers
 generation"

This reverts commit 6a4c7c1258ffecc26324b034c9091373bf0272dd.
---
 build/tasks/kernel.mk | 50 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/build/tasks/kernel.mk b/build/tasks/kernel.mk
index b42d86d..d0263d3 100644
--- a/build/tasks/kernel.mk
+++ b/build/tasks/kernel.mk
@@ -151,6 +151,9 @@ endif
 
 ifeq ($(FULL_KERNEL_BUILD),true)
 
+KERNEL_HEADERS_INSTALL_DIR := $(KERNEL_OUT)/usr
+KERNEL_HEADERS_INSTALL_DEPS := $(KERNEL_OUT)/.headers_install_deps
+
 ifeq ($(NEED_KERNEL_MODULE_ROOT),true)
 KERNEL_MODULES_INSTALL := root
 KERNEL_MODULES_OUT := $(TARGET_ROOT_OUT)/lib/modules
@@ -252,6 +255,53 @@ $(TARGET_KERNEL_MODULES): TARGET_KERNEL_BINARIES
 
 $(TARGET_PREBUILT_INT_KERNEL): $(TARGET_KERNEL_MODULES)
 
+# Install kernel (uapi) headers.
+#
+# The dependency file serves two purposes:
+#  - It is a stamp indicating when the headers were last installed.
+#  - It contains a rule to regenerate itself when any kernel header
+#    files change.  This rule is identical to the rule emitted by
+#    GCC using the M/MM flags.
+#
+# Note that the location of installed kernel headers changed when the
+# kernel uapi system was introduced in 3.7.  Unfortunately, it is not
+# sufficient to test whether the uapi directories exist because some
+# kernels backport patches that contain uapi headers.  So we look for
+# the string "version_h" in the kernel makefile which was introduced
+# as a part of the uapi system (commit d183e6f570f3).
+-include $(KERNEL_HEADERS_INSTALL_DEPS)
+$(KERNEL_HEADERS_INSTALL_DEPS):
+	@echo "Building Kernel Headers"
+	$(hide) mkdir -p $(KERNEL_OUT)
+	$(hide) rm -f $@
+	$(hide) $(MAKE) $(MAKE_FLAGS) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) $(KERNEL_CLANG_TRIPLE) $(KERNEL_CC) headers_install
+	$(hide) echo "$@: \\" > $@
+	$(hide) ( cd $(KERNEL_SRC); \
+		if grep -q '^version_h' 'Makefile'; then \
+			depdirs="arch/$(KERNEL_ARCH)/include/uapi include/uapi"; \
+		else \
+			depdirs="arch/$(KERNEL_ARCH)/include/asm include"; \
+		fi; \
+		deps="Makefile $$(find $$depdirs -type f -name '*.h')"; \
+		for f in $$deps; do \
+			echo "  $(KERNEL_SRC)/$$f \\" >> $@; \
+		done ; \
+		echo "" >> $@ ; \
+		for f in $$deps; do \
+			echo "$(KERNEL_SRC)/$$f:" >> $@; \
+			echo "" >> $@; \
+		done \
+		)
+
+.PHONY: INSTALLED_KERNEL_HEADERS
+INSTALLED_KERNEL_HEADERS: $(KERNEL_HEADERS_INSTALL_DEPS)
+
+# Dependencies on $(KERNEL_OUT)/usr are deprecated
+$(KERNEL_HEADERS_INSTALL_DIR): $(KERNEL_HEADERS_INSTALL_DEPS)
+	@echo "Depending on $(KERNEL_HEADERS_INSTALL_DIR) is deprecated." 1>&2
+	@echo "Use INSTALLED_KERNEL_HEADERS instead." 1>&2
+	@exit 1
+
 .PHONY: kerneltags
 kerneltags: $(KERNEL_CONFIG)
 	$(hide) mkdir -p $(KERNEL_OUT)
-- 
2.17.1