From 3a6f4c4376eba5d20038331a1a8f147cee8d9d2a Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Sun, 6 Jan 2019 06:47:14 -0500
Subject: project: added rules for install-headers, simplified include path
 scheme.

---
 project/headers.mk | 74 ++++++++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 66 insertions(+), 8 deletions(-)

(limited to 'project')

diff --git a/project/headers.mk b/project/headers.mk
index ea8bea4..d254dc0 100644
--- a/project/headers.mk
+++ b/project/headers.mk
@@ -1,4 +1,7 @@
 # alltypes.h, syscall.h
+build/include/bits/:
+		mkdir -p $@
+
 ALLTYPES_H      = build/include/bits/alltypes.h
 SYSCALL_H       = build/include/bits/syscall.h
 
@@ -9,15 +12,17 @@ ALLTYPES_DEPS   = \
 		$(SOURCE_DIR)/include/alltypes.h.in \
 		$(SOURCE_DIR)/tools/mkalltypes.sed
 
-$(ALLTYPES_H):	build/headers.tag $(ALLTYPES_DEPS)
+$(ALLTYPES_H):	$(ALLTYPES_DEPS) build/include/bits/
 		sed -f $(SOURCE_DIR)/tools/mkalltypes.sed \
 			$(PORT_DIR)/arch/$(ARCH)/bits/alltypes.h.in \
 			$(SOURCE_DIR)/include/alltypes.h.in > $@
 
-syscall-copy:	$(PORT_DIR)/arch/$(ARCH)/bits/syscall.h build/headers.tag
+syscall-copy:	| build/include/bits/
+syscall-copy:	$(PORT_DIR)/arch/$(ARCH)/bits/syscall.h
 		cp $< $(SYSCALL_H)
 
-syscall-gen:	$(PORT_DIR)/arch/$(ARCH)/bits/syscall.h.in build/headers.tag
+syscall-gen:	| build/include/bits/
+syscall-gen:	$(PORT_DIR)/arch/$(ARCH)/bits/syscall.h.in
 		cp $< $(SYSCALL_H).tmp
 		sed -n -e 's/__NR_/SYS_/p' < $< >> $(SYSCALL_H).tmp
 		mv $(SYSCALL_H).tmp $(SYSCALL_H)
@@ -25,15 +30,68 @@ syscall-gen:	$(PORT_DIR)/arch/$(ARCH)/bits/syscall.h.in build/headers.tag
 $(SYSCALL_H):	syscall-arch
 
 
+# arch headers
+libc_bits_h     = $(sort $(wildcard $(SOURCE_DIR)/arch/generic/bits/*.h))
+port_bits_h     = $(sort $(wildcard $(PORT_DIR)/arch/$(ARCH)/bits/*.h))
+port_substs_h   = $(subst $(PORT_DIR)/arch/$(ARCH)/, \
+		          $(SOURCE_DIR)/arch/generic/,\
+		   $(port_bits_h))
+
+ARCH_HEADERS    = $(port_bits_h) $(filter-out $(port_substs_h), $(libc_bits_h))
+
+src_bits_h      = $(ARCH_GEN_H)
+src_bits_h     += $(subst $(SOURCE_DIR)/arch/generic/,build/include/,\
+		    $(subst $(PORT_DIR)/arch/$(ARCH)/,build/include/, \
+		      $(ARCH_HEADERS)))
+
+dst_bits_h      = $(src_bits_h:build/include/%=$(DESTDIR)$(INCLUDEDIR)/%)
+
+
+# libc headers
+src_header_dirs = $(filter %/,$(wildcard $(SOURCE_DIR)/include/*/))
+dst_header_dirs = $(src_header_dirs:$(SOURCE_DIR)/include/%=$(DESTDIR)$(INCLUDEDIR)/%)
+
+src_c_headers   = $(sort $(wildcard $(SOURCE_DIR)/include/*.h))
+src_c_headers  += $(sort $(wildcard $(SOURCE_DIR)/include/*/*.h))
+
+dst_c_headers   = $(subst $(SOURCE_DIR)/include/,  \
+		          $(DESTDIR)$(INCLUDEDIR)/, \
+		    $(src_c_headers))
+
+$(dst_header_dirs):
+			mkdir -p $@
+
+build/include/bits/%.h:	build/headers.tag
+
+$(DESTDIR)$(INCLUDEDIR)/bits/:
+			mkdir -p $@
+
+$(DESTDIR)$(INCLUDEDIR)/bits/%.h: build/include/bits/%.h $(DESTDIR)$(INCLUDEDIR)/bits/
+			cp $< $@.tmp
+			chmod 0644 $@.tmp
+			mv $@.tmp $@
+
+$(DESTDIR)$(INCLUDEDIR)/%.h: | $(dst_header_dirs)
+$(DESTDIR)$(INCLUDEDIR)/%.h: $(SOURCE_DIR)/include/%.h
+			cp -p $< $@.tmp
+			chmod 0644 $@.tmp
+			mv $@.tmp $@
+
+install-arch-headers:	build/headers.tag $(src_bits_h) $(dst_bits_h)
+
+install-libc-headers:	$(dst_header_dirs) $(dst_c_headers)
+
+install-headers:	install-arch-headers install-libc-headers
+
 
 # build/include
-build/headers.tag:
-		mkdir -p build/include
-		mkdir -p build/include/bits
-		touch $@
+build/headers.tag:	| build/include/bits/
+build/headers.tag:	$(ARCH_HEADERS)
+			cp $(ARCH_HEADERS) build/include/bits/
+			touch $@
 
 clean-headers:
-		rm -f $(ARCH_GEN_H)
+		rm -f $(src_bits_h)
 		rm -f $(SYSCALL_H).tmp
 		rmdir build/include/bits 2>/dev/null || true
 		rmdir build/include      2>/dev/null || true
-- 
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