PLATFORM_CPPFLAGS =
PLATFORM_LDFLAGS =
-#
-# 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.
-#
-# [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
-endif
+HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
+ $(HOSTCPPFLAGS)
+HOSTSTRIP = strip
-ifeq ($(ARCH),arm)
-ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
-PLATFORM_CPPFLAGS+= -D__ARM__
-endif
-ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
-PLATFORM_CPPFLAGS+= -D__ARM__
-endif
-endif
+#
+# 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.
+#
+# 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.
+#
-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)
+ifeq ($(HOSTOS),darwin)
+HOSTCC = cc
+HOSTCFLAGS += -traditional-cpp
+HOSTLDFLAGS += -multiply_defined suppress
else
-BOARDDIR = $(BOARD)
-endif
-ifdef BOARD
-sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules
+HOSTCC = gcc
endif
-# Load generated board configuration
-sinclude $(OBJTREE)/include/autoconf.mk
-
-#########################################################################
+ifeq ($(HOSTOS),cygwin)
+HOSTCFLAGS += -ansi
+endif
-CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
- else if [ -x /bin/bash ]; then echo /bin/bash; \
- else echo sh; fi ; fi)
+# 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.
-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
#########################################################################
#
CPP = $(CC) -E
AR = $(CROSS_COMPILE)ar
NM = $(CROSS_COMPILE)nm
+LDR = $(CROSS_COMPILE)ldr
STRIP = $(CROSS_COMPILE)strip
OBJCOPY = $(CROSS_COMPILE)objcopy
OBJDUMP = $(CROSS_COMPILE)objdump
RANLIB = $(CROSS_COMPILE)RANLIB
+#########################################################################
+
+# Load generated board configuration
+sinclude $(OBJTREE)/include/autoconf.mk
+
+# Some architecture config.mk files need to know what CPUDIR is set to,
+# so calculate CPUDIR before including ARCH/SOC/CPU config.mk files.
+# Check if arch/$ARCH/cpu/$CPU exists, otherwise assume arch/$ARCH/cpu contains
+# CPU-specific code.
+CPUDIR=arch/$(ARCH)/cpu/$(CPU)
+ifneq ($(SRCTREE)/$(CPUDIR),$(wildcard $(SRCTREE)/$(CPUDIR)))
+CPUDIR=arch/$(ARCH)/cpu
+endif
+
+sinclude $(TOPDIR)/arch/$(ARCH)/config.mk # include architecture dependend rules
+sinclude $(TOPDIR)/$(CPUDIR)/config.mk # include CPU specific rules
+
+ifdef SOC
+sinclude $(TOPDIR)/$(CPUDIR)/$(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
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
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)
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 $(TEXT_BASE)
endif
#
# So far, this is used only by tools/gdb/Makefile.
-ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
+ifeq ($(HOSTOS),darwin)
BFD_ROOT_DIR = /usr/local/tools
else
ifeq ($(HOSTARCH),$(ARCH))
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 = $(subst $(SRCTREE)/,,$(CURDIR:$(obj)%=%))
$(obj)%.s: %.S
- $(CPP) $(AFLAGS) -o $@ $<
+ $(CPP) $(AFLAGS) $(AFLAGS_$(BCURDIR)/$(@F)) $(AFLAGS_$(BCURDIR)) \
+ -o $@ $<
$(obj)%.o: %.S
- $(CC) $(AFLAGS) -c -o $@ $<
+ $(CC) $(AFLAGS) $(AFLAGS_$(BCURDIR)/$(@F)) $(AFLAGS_$(BCURDIR)) \
+ -o $@ $< -c
$(obj)%.o: %.c
- $(CC) $(CFLAGS) -c -o $@ $<
-endif
+ $(CC) $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
+ -o $@ $< -c
+$(obj)%.i: %.c
+ $(CPP) $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
+ -o $@ $< -c
+$(obj)%.s: %.c
+ $(CC) $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
+ -o $@ $< -c -S
#########################################################################
projects / karo-tx-uboot.git / blobdiff