Automatically adjust ARFLAGS so "make -s" is really silent.

[people/ms/u-boot.git] / config.mk

diff --git a/config.mk b/config.mk
index f73d6f4c90903fb3608701c56a1af345a3a579c9..6e280bc83487dc8b062be7b602de7b05839dc7bd 100644 (file)
--- 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 =
@@ -53,12 +69,19 @@ 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
 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
@@ -83,6 +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...)
@@ -98,22 +127,36 @@ OBJCOPY = $(CROSS_COMPILE)objcopy
 OBJDUMP = $(CROSS_COMPILE)objdump
 RANLIB = $(CROSS_COMPILE)RANLIB
 
+ifneq (,$(findstring s,$(MAKEFLAGS)))
+ARFLAGS = cr
+else
+ARFLAGS = crv
+endif
 RELFLAGS= $(PLATFORM_RELFLAGS)
-DBGFLAGS= -g #-DDEBUG
+DBGFLAGS= -g # -DDEBUG
 OPTFLAGS= -Os #-fomit-frame-pointer
 ifndef LDSCRIPT
-#LDSCRIPT := board/$(BOARDDIR)/u-boot.lds.debug
+#LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
+ifeq ($(CONFIG_NAND_U_BOOT),y)
+LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
+else
 LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
 endif
+endif
 OBJCFLAGS += --gap-fill=0xff
 
 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 \
@@ -122,7 +165,25 @@ else
 CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
 endif
 
-AFLAGS_DEBUG := -Wa,-gstabs
+# 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 ($(ARCH),nios)
+ifeq ($(findstring 2.9,$(shell $(CC) --version)),2.9)
+CFLAGS := $(CPPFLAGS) -Wall -Wno-trigraphs
+endif
+endif
+
+# $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
+# option to the assembler.
+AFLAGS_DEBUG :=
+
+# turn jbsr into jsr for m68k
+ifeq ($(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)
@@ -150,6 +211,10 @@ 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 \
@@ -159,11 +224,23 @@ 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
+
 #########################################################################