X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=config.mk;h=3ed7107fb807de30d060161fe65627d386c9c1d7;hb=0dab03ba8fb20ede7233f497b6c6db188986e7a8;hp=ff83091746887aad0e44a0e03113c75863f68a91;hpb=cbf9c117282b8729bdb86071997b58fcab58c444;p=people%2Fms%2Fu-boot.git

diff --git a/config.mk b/config.mk
index ff83091746..3ed7107fb8 100644
--- a/config.mk
+++ b/config.mk
@@ -1,5 +1,5 @@
 #
-# (C) Copyright 2000
+# (C) Copyright 2000-2006
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
 # See file CREDITS for list of people who contributed to this
@@ -23,6 +23,22 @@
 
 #########################################################################
 
+ifneq ($(OBJTREE),$(SRCTREE))
+ifeq ($(CURDIR),$(SRCTREE))
+dir := 
+else
+dir := $(subst $(SRCTREE)/,,$(CURDIR))
+endif
+
+obj := $(if $(dir),$(OBJTREE)/$(dir)/,$(OBJTREE)/)
+src := $(if $(dir),$(SRCTREE)/$(dir)/,$(SRCTREE)/)
+
+$(shell mkdir -p $(obj))
+else
+obj :=
+src :=
+endif
+
 # clean the slate ...
 PLATFORM_RELFLAGS =
 PLATFORM_CPPFLAGS =
@@ -53,6 +69,10 @@ PLATFORM_CPPFLAGS+= -D__ARM__
 endif
 endif
 
+ifeq ($(ARCH),blackfin)
+PLATFORM_CPPFLAGS+= -D__BLACKFIN__ -mno-underscore
+endif
+
 ifdef	ARCH
 sinclude $(TOPDIR)/$(ARCH)_config.mk	# include architecture dependend rules
 endif
@@ -86,6 +106,12 @@ HOSTCFLAGS	= -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
 HOSTSTRIP	= strip
 
 #########################################################################
+#
+# Option checker (courtesy linux kernel) to ensure
+# only supported compiler options are used
+#
+cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
+		> /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
 
 #
 # Include the make variables (CC, etc...)
@@ -102,7 +128,7 @@ OBJDUMP = $(CROSS_COMPILE)objdump
 RANLIB	= $(CROSS_COMPILE)RANLIB
 
 RELFLAGS= $(PLATFORM_RELFLAGS)
-DBGFLAGS= -g #-DDEBUG
+DBGFLAGS= -g # -DDEBUG
 OPTFLAGS= -Os #-fomit-frame-pointer
 ifndef LDSCRIPT
 #LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
@@ -114,9 +140,14 @@ gccincdir := $(shell $(CC) -print-file-name=include)
 
 CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS)		\
 	-D__KERNEL__ -DTEXT_BASE=$(TEXT_BASE)		\
-	-I$(TOPDIR)/include				\
-	-fno-builtin -ffreestanding -nostdinc -isystem	\
-	$(gccincdir) -pipe $(PLATFORM_CPPFLAGS)
+
+ifneq ($(OBJTREE),$(SRCTREE))
+CPPFLAGS += -I$(OBJTREE)/include2 -I$(OBJTREE)/include
+endif
+
+CPPFLAGS += -I$(TOPDIR)/include
+CPPFLAGS += -fno-builtin -ffreestanding -nostdinc 	\
+	-isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS)
 
 ifdef BUILD_TAG
 CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \
@@ -134,6 +165,14 @@ endif
 endif
 
 AFLAGS_DEBUG := -Wa,-gstabs
+
+# turn jbsr into jsr for m68k
+ifeq ($(ARCH),m68k)
+ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
+AFLAGS_DEBUG := -Wa,-gstabs,-S
+endif
+endif
+
 AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS)
 
 LDFLAGS += -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
@@ -174,11 +213,23 @@ export	TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
 
 #########################################################################
 
+ifndef REMOTE_BUILD
+
 %.s:	%.S
-	$(CPP) $(AFLAGS) -o $@ $(CURDIR)/$<
+	$(CPP) $(AFLAGS) -o $@ $<
 %.o:	%.S
-	$(CC) $(AFLAGS) -c -o $@ $(CURDIR)/$<
+	$(CC) $(AFLAGS) -c -o $@ $<
 %.o:	%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
 
+else
+
+$(obj)%.s:	%.S
+	$(CPP) $(AFLAGS) -o $@ $<
+$(obj)%.o:	%.S
+	$(CC) $(AFLAGS) -c -o $@ $<
+$(obj)%.o:	%.c
+	$(CC) $(CFLAGS) -c -o $@ $<
+endif
+
 #########################################################################