From dd6f0e3f6e80b43a92000908676947c4b06c22e6 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Sat, 5 Jan 2019 20:08:10 -0500
Subject: project: added config bits and rules for alltypes.h and syscall.h.

---
 config.project            |  1 +
 project/config/cfgdefs.in |  6 ++++++
 project/config/cfgdefs.sh | 23 +++++++++++++++++++++++
 project/headers.mk        | 48 ++++++++++++++++++++++++++++++++++++++++++++---
 4 files changed, 75 insertions(+), 3 deletions(-)

diff --git a/config.project b/config.project
index 051f38d..b9e01d6 100644
--- a/config.project
+++ b/config.project
@@ -33,6 +33,7 @@ mb_ccenv_skip_native=
 mb_default_cflags_common="-std=c99 -pipe -D_XOPEN_SOURCE=700"
 mb_default_cflags_common="$mb_default_cflags_common -ffreestanding -nostdinc"
 mb_default_cflags_common="$mb_default_cflags_common -fomit-frame-pointer"
+mb_default_cflags_common="$mb_default_cflags_common -Ibuild/include"
 mb_default_cflags_common="$mb_default_cflags_common -I\$(SOURCE_DIR)/arch/\$(ARCH)"
 mb_default_cflags_common="$mb_default_cflags_common -I\$(PROJECT_DIR)/arch/\$(ARCH)"
 mb_default_cflags_common="$mb_default_cflags_common -I\$(SOURCE_DIR)/arch/\$(ARCH)/generic"
diff --git a/project/config/cfgdefs.in b/project/config/cfgdefs.in
index 4299d59..a846390 100644
--- a/project/config/cfgdefs.in
+++ b/project/config/cfgdefs.in
@@ -4,3 +4,9 @@ LIBC_MAJOR               = @libc_major@
 LIBC_MINOR               = @libc_minor@
 LIBC_MICRO               = @libc_micro@
 
+# port source directory
+PORT_DIR                 = @port_dir@
+
+# syscall.h
+syscall-arch:            @libc_syscall_arch@
+
diff --git a/project/config/cfgdefs.sh b/project/config/cfgdefs.sh
index 20daffc..02e54b1 100644
--- a/project/config/cfgdefs.sh
+++ b/project/config/cfgdefs.sh
@@ -60,13 +60,33 @@ cfgdefs_detect_libc_version()
 }
 
 
+cfgdefs_set_libc_options()
+{
+	if [ -d $mb_project_dir/arch/$mb_arch ]; then
+		port_dir='$(PROJECT_DIR)'
+		arch_dir=$mb_project_dir
+	else
+		port_dir='$(SOURCE_DIR)'
+		arch_dir=$mb_source_dir
+	fi
+
+	if [ -f $arch_dir/arch/$mb_arch/bits/syscall.h.in ]; then
+		libc_syscall_arch='syscall-gen'
+	else
+		libc_syscall_arch='syscall-copy'
+	fi
+}
+
+
 cfgdefs_output_custom_defs()
 {
 	sed \
+			-e 's/@port_dir@/'"$port_dir"'/g'       \
 			-e 's/@libc_ver@/'"$libc_ver"'/g'       \
 			-e 's/@libc_major@/'"$libc_major"'/g'   \
 			-e 's/@libc_minor@/'"$libc_minor"'/g'   \
 			-e 's/@libc_micro@/'"$libc_micro"'/g'   \
+			-e 's/@libc_syscall_arch@/'"$libc_syscall_arch"'/g' \
 		"$mb_project_dir/project/config/cfgdefs.in"         \
 	| sed -e 's/[ \t]*$//g'                                     \
 			>> "$mb_pwd/cfgdefs.mk"
@@ -79,6 +99,9 @@ cfgdefs_set_arch
 # libc version info
 cfgdefs_detect_libc_version
 
+# libc (variant-specific) options
+cfgdefs_set_libc_options
+
 # cfgdefs.in --> cfgdefs.mk
 cfgdefs_output_custom_defs
 
diff --git a/project/headers.mk b/project/headers.mk
index 9d50ee3..ea8bea4 100644
--- a/project/headers.mk
+++ b/project/headers.mk
@@ -1,5 +1,47 @@
-API_HEADERS = \
+# alltypes.h, syscall.h
+ALLTYPES_H      = build/include/bits/alltypes.h
+SYSCALL_H       = build/include/bits/syscall.h
 
-INTERNAL_HEADERS = \
+ARCH_GEN_H      = $(ALLTYPES_H) $(SYSCALL_H)
 
-ALL_HEADERS = $(API_HEADERS) $(INTERNAL_HEADERS)
+ALLTYPES_DEPS   = \
+		$(PORT_DIR)/arch/$(ARCH)/bits/alltypes.h.in \
+		$(SOURCE_DIR)/include/alltypes.h.in \
+		$(SOURCE_DIR)/tools/mkalltypes.sed
+
+$(ALLTYPES_H):	build/headers.tag $(ALLTYPES_DEPS)
+		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
+		cp $< $(SYSCALL_H)
+
+syscall-gen:	$(PORT_DIR)/arch/$(ARCH)/bits/syscall.h.in build/headers.tag
+		cp $< $(SYSCALL_H).tmp
+		sed -n -e 's/__NR_/SYS_/p' < $< >> $(SYSCALL_H).tmp
+		mv $(SYSCALL_H).tmp $(SYSCALL_H)
+
+$(SYSCALL_H):	syscall-arch
+
+
+
+# build/include
+build/headers.tag:
+		mkdir -p build/include
+		mkdir -p build/include/bits
+		touch $@
+
+clean-headers:
+		rm -f $(ARCH_GEN_H)
+		rm -f $(SYSCALL_H).tmp
+		rmdir build/include/bits 2>/dev/null || true
+		rmdir build/include      2>/dev/null || true
+		rm -f build/headers.tag
+
+clean:		clean-headers
+
+.PHONY:		syscall-arch
+.PHONY:		syscall-copy
+.PHONY:		syscall-gen
+.PHONY:		clean-headers
-- 
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