# HG changeset patch
# User hahn@xxxxxxxxxxxxxxxx
# Date 1158913773 -7200
# Node ID 964994e5d7961673e1bd26e65b141186c0aab11f
# Parent  8374be07c6226cac672a87f6e259b48ac5129f3b
Added functionality to generate symbols from C-source for assembling.
See GEN_ASSYM_... stuff.

Signed-off-by: Dietmar Hahn <dietmar.hahn@xxxxxxxxxxxxxxxxxxx>

diff -r 8374be07c622 -r 964994e5d796 extras/mini-os/Makefile
--- a/extras/mini-os/Makefile	Fri Sep 22 08:50:02 2006 +0200
+++ b/extras/mini-os/Makefile	Fri Sep 22 10:29:33 2006 +0200
@@ -29,6 +29,12 @@ TARGET_ARCH_DIR = $(TARGET_ARCH)
 # This is used for architecture specific links.
 ARCH_LINKS =
 
+# Initialization for generating assymbler symbols from C-source.
+GEN_ASSYM_DIR=genassym
+GEN_ASSYM_BIN=$(GEN_ASSYM_DIR)/gen_assym
+GEN_ASSYM_H=$(GEN_ASSYM_DIR)/assym_$(TARGET_ARCH).h
+DO_GEN_ASSYM=
+
 ifeq ($(TARGET_ARCH),x86_32)
 CFLAGS += -m32 -march=i686
 LDFLAGS += -m elf_i386
@@ -59,6 +65,7 @@ ASFLAGS += -x assembler-with-cpp -ansi -
 ASFLAGS += -x assembler-with-cpp -ansi -Wall
 ASFLAGS += -mfixed-range=f12-f15,f32-f127
 ARCH_LINKS = IA64_LINKS		# Special link on ia64 needed
+DO_GEN_ASSYM=genassym_ia64
 define arch_links
 [ -e include/ia64/asm-xsi-offsets.h ] || ln -sf ../../../../xen/include/asm-ia64/asm-xsi-offsets.h include/ia64/asm-xsi-offsets.h
 endef
@@ -70,9 +77,6 @@ CFLAGS += -O3
 CFLAGS += -O3
 endif
 
-# Add the special header directories to the include paths.
-extra_incl := $(foreach dir,$(EXTRA_INC),-Iinclude/$(dir))
-override CPPFLAGS := -Iinclude $(CPPFLAGS) -Iinclude/$(TARGET_ARCH_DIR)	$(extra_incl)
 
 TARGET := mini-os
 
@@ -105,11 +109,31 @@ ifneq ($(ARCH_LINKS),)
 	$(arch_links)
 endif
 
+# Generate assymbler symbols from C-source.
+ifneq ($(DO_GEN_ASSYM),)
+
+$(DO_GEN_ASSYM): $(GEN_ASSYM_H)
+
+$(GEN_ASSYM_H): $(GEN_ASSYM_BIN)
+
+$(GEN_ASSYM_BIN): $(HDRS) $(GEN_ASSYM_BIN)_$(TARGET_ARCH).c
+	rm -f $(GEN_ASSYM_H)
+	cc -o $@ $(CFLAGS) $(CPPFLAGS) $(GEN_ASSYM_BIN)_$(TARGET_ARCH).c
+	$(GEN_ASSYM_BIN) > $(GEN_ASSYM_H)
+
+CPPFLAGS += -I$(GEN_ASSYM_DIR)
+endif
+
+# Add the special header directories to the include paths.
+extra_incl := $(foreach dir,$(EXTRA_INC),-Iinclude/$(dir))
+override CPPFLAGS := -Iinclude $(CPPFLAGS) -Iinclude/$(TARGET_ARCH_DIR)	$(extra_incl)
+
+
 .PHONY: links
 links:	$(ARCH_LINKS)
 	[ -e include/xen ] || ln -sf ../../../xen/include/public include/xen
 
-libminios.a: links $(OBJS) $(HEAD)
+libminios.a: links $(DO_GEN_ASSYM) $(OBJS) $(HEAD)
 	$(AR) r libminios.a $(HEAD) $(OBJS)
 
 $(TARGET): libminios.a $(HEAD)
@@ -122,6 +146,8 @@ clean:
 	rm -f *.o *~ core $(TARGET).elf $(TARGET).raw $(TARGET) $(TARGET).gz
 	rm -f libminios.a
 	find . -type l | xargs rm -f
+	rm -f $(GEN_ASSYM_BIN)
+	rm -f $(GEN_ASSYM_H)
 
 %.o: %.c $(HDRS) Makefile
 	$(CC) $(CFLAGS) $(CPPFLAGS) -c $< -o $@