X-Git-Url: http://git.ipfire.org/?p=people%2Fms%2Fu-boot.git;a=blobdiff_plain;f=config.mk;h=cb1c4af977203cca95aa39aa58a1864648f023dc;hp=ee057b5c735ff11049d00820dcc98c892b9a0fde;hb=fd4e49c18901a50b1648235f26da1e8caa0f8764;hpb=9e04a8138892d64848dc6e8e74213086d9190d9a

diff --git a/config.mk b/config.mk
index ee057b5c73..cb1c4af977 100644
--- a/config.mk
+++ b/config.mk
@@ -44,65 +44,43 @@ PLATFORM_RELFLAGS =
 PLATFORM_CPPFLAGS =
 PLATFORM_LDFLAGS =
 
+#########################################################################
+
+HOSTCFLAGS	= -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
+		  $(HOSTCPPFLAGS)
+HOSTSTRIP	= strip
+
+#
+# Mac OS X / Darwin's C preprocessor is Apple specific.  It
+# generates numerous errors and warnings.  We want to bypass it
+# and use GNU C's cpp.  To do this we pass the -traditional-cpp
+# option to the compiler.  Note that the -traditional-cpp flag
+# DOES NOT have the same semantics as GNU C's flag, all it does
+# is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
 #
-# When cross-compiling on NetBSD, we have to define __PPC__ or else we
-# will pick up a va_list declaration that is incompatible with the
-# actual argument lists emitted by the compiler.
+# Apple's linker is similar, thanks to the new 2 stage linking
+# multiple symbol definitions are treated as errors, hence the
+# -multiply_defined suppress option to turn off this error.
 #
-# [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3]
 
-ifeq ($(ARCH),ppc)
-ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
-PLATFORM_CPPFLAGS+= -D__PPC__
-endif
-ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
-PLATFORM_CPPFLAGS+= -D__PPC__
-endif
+ifeq ($(HOSTOS),darwin)
+HOSTCC		= cc
+HOSTCFLAGS	+= -traditional-cpp
+HOSTLDFLAGS	+= -multiply_defined suppress
+else
+HOSTCC		= gcc
 endif
 
-ifeq ($(ARCH),arm)
-ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
-PLATFORM_CPPFLAGS+= -D__ARM__
-endif
-ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
-PLATFORM_CPPFLAGS+= -D__ARM__
-endif
+ifeq ($(HOSTOS),cygwin)
+HOSTCFLAGS	+= -ansi
 endif
 
-ifdef	ARCH
-sinclude $(TOPDIR)/$(ARCH)_config.mk	# include architecture dependend rules
-endif
-ifdef	CPU
-sinclude $(TOPDIR)/cpu/$(CPU)/config.mk	# include  CPU	specific rules
-endif
-ifdef	SOC
-sinclude $(TOPDIR)/cpu/$(CPU)/$(SOC)/config.mk	# include  SoC	specific rules
-endif
-ifdef	VENDOR
-BOARDDIR = $(VENDOR)/$(BOARD)
-else
-BOARDDIR = $(BOARD)
-endif
-ifdef	BOARD
-sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk	# include board specific rules
-endif
+# We build some files with extra pedantic flags to try to minimize things
+# that won't build on some weird host compiler -- though there are lots of
+# exceptions for files that aren't complaint.
 
-# Load generated board configuration
-sinclude $(OBJTREE)/include/autoconf.mk
-
-#########################################################################
-
-CONFIG_SHELL	:= $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
-		    else if [ -x /bin/bash ]; then echo /bin/bash; \
-		    else echo sh; fi ; fi)
-
-ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
-HOSTCC		= cc
-else
-HOSTCC		= gcc
-endif
-HOSTCFLAGS	= -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
-HOSTSTRIP	= strip
+HOSTCFLAGS_NOPED = $(filter-out -pedantic,$(HOSTCFLAGS))
+HOSTCFLAGS	+= -pedantic
 
 #########################################################################
 #
@@ -127,6 +105,31 @@ OBJCOPY = $(CROSS_COMPILE)objcopy
 OBJDUMP = $(CROSS_COMPILE)objdump
 RANLIB	= $(CROSS_COMPILE)RANLIB
 
+#########################################################################
+
+# Load generated board configuration
+sinclude $(OBJTREE)/include/autoconf.mk
+
+ifdef	ARCH
+sinclude $(TOPDIR)/lib_$(ARCH)/config.mk	# include architecture dependend rules
+endif
+ifdef	CPU
+sinclude $(TOPDIR)/cpu/$(CPU)/config.mk		# include  CPU	specific rules
+endif
+ifdef	SOC
+sinclude $(TOPDIR)/cpu/$(CPU)/$(SOC)/config.mk	# include  SoC	specific rules
+endif
+ifdef	VENDOR
+BOARDDIR = $(VENDOR)/$(BOARD)
+else
+BOARDDIR = $(BOARD)
+endif
+ifdef	BOARD
+sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk	# include board specific rules
+endif
+
+#########################################################################
+
 ifneq (,$(findstring s,$(MAKEFLAGS)))
 ARFLAGS = cr
 else
@@ -153,12 +156,16 @@ ifneq ($(TEXT_BASE),)
 CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE)
 endif
 
+ifneq ($(RESET_VECTOR_ADDRESS),)
+CPPFLAGS += -DRESET_VECTOR_ADDRESS=$(RESET_VECTOR_ADDRESS)
+endif
+
 ifneq ($(OBJTREE),$(SRCTREE))
 CPPFLAGS += -I$(OBJTREE)/include2 -I$(OBJTREE)/include
 endif
 
 CPPFLAGS += -I$(TOPDIR)/include
-CPPFLAGS += -fno-builtin -ffreestanding -nostdinc 	\
+CPPFLAGS += -fno-builtin -ffreestanding -nostdinc	\
 	-isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS)
 
 ifdef BUILD_TAG
@@ -168,6 +175,8 @@ else
 CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
 endif
 
+CFLAGS += $(call cc-option,-fno-stack-protector)
+
 # avoid trigraph warnings while parsing pci.h (produced by NIOS gcc-2.9)
 # this option have to be placed behind -Wall -- that's why it is here
 ifeq ($(ARCH),nios)
@@ -189,7 +198,7 @@ endif
 
 AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS)
 
-LDFLAGS += -Bstatic -T $(LDSCRIPT) $(PLATFORM_LDFLAGS)
+LDFLAGS += -Bstatic -T $(obj)u-boot.lds $(PLATFORM_LDFLAGS)
 ifneq ($(TEXT_BASE),)
 LDFLAGS += -Ttext $(TEXT_BASE)
 endif
@@ -204,7 +213,7 @@ endif
 #
 # So far, this is used only by tools/gdb/Makefile.
 
-ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
+ifeq ($(HOSTOS),darwin)
 BFD_ROOT_DIR =		/usr/local/tools
 else
 ifeq ($(HOSTARCH),$(ARCH))
@@ -217,36 +226,25 @@ BFD_ROOT_DIR =		/opt/powerpc
 endif
 endif
 
-ifeq ($(PCI_CLOCK),PCI_66M)
-CFLAGS := $(CFLAGS) -DPCI_66M
-endif
-
 #########################################################################
 
-export	CONFIG_SHELL HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE \
-	AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP \
-	MAKE
+export	HOSTCC HOSTCFLAGS HOSTLDFLAGS PEDCFLAGS HOSTSTRIP CROSS_COMPILE \
+	AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP MAKE
 export	TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
 
 #########################################################################
 
-ifndef REMOTE_BUILD
-
-%.s:	%.S
-	$(CPP) $(AFLAGS) -o $@ $<
-%.o:	%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
-%.o:	%.c
-	$(CC) $(CFLAGS) -c -o $@ $<
-
-else
-
+# Allow boards to use custom optimize flags on a per dir/file basis
+BCURDIR := $(notdir $(CURDIR))
 $(obj)%.s:	%.S
-	$(CPP) $(AFLAGS) -o $@ $<
+	$(CPP) $(AFLAGS) $(AFLAGS_$(@F)) $(AFLAGS_$(BCURDIR)) -o $@ $<
 $(obj)%.o:	%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
+	$(CC)  $(AFLAGS) $(AFLAGS_$(@F)) $(AFLAGS_$(BCURDIR)) -o $@ $< -c
 $(obj)%.o:	%.c
-	$(CC) $(CFLAGS) -c -o $@ $<
-endif
+	$(CC)  $(CFLAGS) $(CFLAGS_$(@F)) $(CFLAGS_$(BCURDIR)) -o $@ $< -c
+$(obj)%.i:	%.c
+	$(CPP) $(CFLAGS) $(CFLAGS_$(@F)) $(CFLAGS_$(BCURDIR)) -o $@ $< -c
+$(obj)%.s:	%.c
+	$(CC)  $(CFLAGS) $(CFLAGS_$(@F)) $(CFLAGS_$(BCURDIR)) -o $@ $< -c -S
 
 #########################################################################