inc.makefile

1. 8623L平台

################################################################
# Copyright (c) 2001 Sigma Designs Inc. All rights reserved.   #
# Author : Julien Soulier    				       #
# Date : 06-19-2001					       #
#							       #
# This is the base makefile for all realmagic projects         #
# 							       #
################################################################

################################
## Project specific variables ## 
################################
ifdef RUA_DIR
ifeq '$(filter -I$(RUA_DIR),$(RMCFLAGS))' ''
RMCFLAGS += -I$(RUA_DIR)
endif
endif

ifndef MAKEFILE_NAME
MAKEFILE_NAME = Makefile
endif	

ifndef LOCAL_MAKEFILE
LOCAL_MAKEFILE = $(MAKEFILE_NAME)
endif

ifndef CCOMPILER
CCOMPILER := gcc
endif

ifndef CXXCOMPILER
CXXCOMPILER := g++
endif

ifndef LDTOOL
LDTOOL := ld
endif

CC := $(CCACHE) $(CROSS)$(CCOMPILER)
CXX := $(CCACHE) $(CROSS)$(CXXCOMPILER)
LD := $(CROSS)$(LDTOOL)
OBJCOPY := $(CROSS)objcopy
AR := $(CROSS)ar

ifndef LINKER
# must be = and not :=
LINKTOOL = $(CROSS)$(CXXCOMPILER)
# LINKTOOL used to be defined a $(CC). However, that makes LINKTOOL ccacheable, 
# which is nonsensical, because ccache only caches compilation, not linking.
else
LINKTOOL := $(CROSS)$(LINKER)
endif

LOCALDIR = $(shell pwd)

ifeq "$(TARGET_TYPE)" "MICROCODE"

ifndef SPASM

ifndef SPASM_VERSION
SPASM_VERSION := 3.0.4
endif

SPASM := /utils/em8xxx/spasm/$(SPASM_VERSION)/bin/spasm

endif	# SPASM

ifndef SPBIN

ifndef SPBIN_VERSION
SPBIN_VERSION := 1.2.16c
endif

SPBIN := /utils/em8xxx/spbin/$(SPBIN_VERSION)/bin/spbin

endif	# SPBIN

ifndef SPADE
ifndef SPADE_VERSION
SPADE_VERSION := 1.4
endif

SPADE := /utils/em8xxx/spade/$(SPADE_VERSION)/spade

endif 	# SPADE

endif	# "$(TARGET_TYPE)" "MICROCODE"

MAKEARGS = -f $(MAKEFILE_NAME) ## the -f option is not passed through MAKEFLAGS
# Bug 7386: newer kernels disable all implicit rules and variables in the main linux Makefile
MAKEFLAGS := $(filter-out -rR,$(MAKEFLAGS))
PREPROCESSORFLAGS += $(RMCFLAGS) -I. -D_REENTRANT
ifdef base_dir
ifeq '$(filter -I$(base_dir), $(PREPROCESSORFLAGS))' ''
PREPROCESSORFLAGS += -I$(base_dir)
endif
endif

#########################
## Compilation options ##
#########################

SPASMFLAGS += -q -D__ASSEMBLY__=1
SPBINFLAGS += -l -p -m -sa -od 0x10000
SPADEFLAGS += -strip

ifneq '$(filter -DWITH_UCODE_BOOTLOADER=1, $(RMCFLAGS))' ''
SPBINFLAGS += -c
endif

# It has to be a = not a :=
ASFLAGS = $(KERNELSTYLE) $(PREPROCESSORFLAGS) -D__ASSEMBLY__=1

ifneq '$(filter withthreads, $(COMPILKIND))' ''
PREPROCESSORFLAGS += -DWITH_THREADS=1
LDFLAGS += -lpthread 
endif

ifneq '$(filter withdl, $(COMPILKIND))' ''
EXEFLAGS += -ldl -rdynamic
endif

ifneq '$(filter kernel, $(COMPILKIND))' ''	## kernel compilation

PREPROCESSORFLAGS += -D__KERNEL__ -DMODULE -DEXPORT_SYMTAB


ifneq '$(filter uclinux, $(COMPILKIND))' ''	## uCLinux compilation

ifeq '$(filter -DEM86XX_MODE=EM86XX_MODEID_STANDALONE, $(RMCFLAGS))' ''
# this gets triggered during release. To be explored and corrected.
#$(error Error: invalid combination: COMPILKIND = uclinux without EM86XX_MODEID_STANDALONE)
endif

ifndef MUM_KI
  ifndef UCLINUX_KERNEL
    ifneq '$(filter -DEM86XX_CHIP=EM86XX_CHIPID_TANGO2, $(RMCFLAGS))' '' 
UCLINUX_KERNEL := /utils/thirdparty/kernelsrc/linux-mips
    else  # ! EM86XX_CHIPID_TANGO2
      ifneq '$(filter -DEM86XX_CHIP=EM86XX_CHIPID_TANGO15, $(RMCFLAGS))' ''
UCLINUX_KERNEL := /utils/thirdparty/kernelsrc/linux-arm-tango15
      else
        ifneq '$(filter -DEM86XX_CHIP=EM86XX_CHIPID_TANGOLIGHT, $(RMCFLAGS))' ''
UCLINUX_KERNEL := /utils/thirdparty/kernelsrc/linux-arm-tangolight
        else	
UCLINUX_KERNEL := /utils/thirdparty/kernelsrc/linux-arm
        endif # EM86XX_CHIPID_TANGOLIGHT
      endif # EM86XX_CHIPID_TANGO15
    endif # EM86XX_CHIPID_TANGO2
$(warning Notice: neither MUM_KI nor UCLINUX_KERNEL are defined. Defaulting UCLINUX_KERNEL to $(UCLINUX_KERNEL).)
  endif # UCLINUX_KERNEL
MUM_KI := -I$(UCLINUX_KERNEL)/include
endif # MUM_KI

ifndef KERNELSTYLE
ifneq "$(filter -DEM86XX_CHIP=EM86XX_CHIPID_TANGO2,$(RMCFLAGS))" ""
KERNELSTYLE= \
	-fomit-frame-pointer \
	-fno-strict-aliasing \
	-fno-common \
	-G 0 \
	-mno-abicalls \
	-fno-pic \
	-finline-limit=100000 \
	-mabi=32 \
	-mips32r2 -Wa,-mips32r2 -Wa,--trap \
	-fno-builtin \
	-mlong-calls \
	-pipe 
else
KERNELSTYLE= \
        -fomit-frame-pointer \
        -fno-strict-aliasing \
        -fno-common \
	-pipe \
	-fno-builtin
endif # tango2 alternative

PREPROCESSORFLAGS += -D__linux__
endif

else # no uclinux

ifeq '$(filter -DEM86XX_MODE=EM86XX_MODEID_WITHHOST, $(RMCFLAGS))' ''
# this gets triggered during release. To be explored and corrected.
#$(error Error: invalid combination: COMPILKIND != uclinux without EM86XX_MODEID_WITHHOST)
endif

ifndef MUM_KI
  ifndef LINUX_KERNEL
MUM_KI := -I/usr/src/linux-$(shell uname -r)/include -I/usr/src/linux-2.4/include
$(warning Notice: neither MUM_KI nor LINUX_KERNEL are defined. Defaulting MUM_KI to $(MUM_KI).)
  else   # LINUX_KERNEL
MUM_KI := -I$(LINUX_KERNEL)/include
  endif  # LINUX_KERNEL
endif # MUM_KI

ifndef KERNELSTYLE
KERNELSTYLE= \
        -fomit-frame-pointer \
        -fno-strict-aliasing \
        -fno-common \
	-mpreferred-stack-boundary=2 \
	-pipe 
endif

endif # linux/uclinux alternative done

## Switch for fascist warnings.
ifndef DISABLE_WARNINGS
CWARNINGS+= \
	-Wno-import \
        -Wunused \
        -Wimplicit \
        -Wmain \
        -Wreturn-type \
        -Wswitch \
        -Wtrigraphs \
        -Wchar-subscripts \
        -Wparentheses \
        -Wcast-align \
	-Wuninitialized -O \
	-Werror
else
CWARNINGS+= -O2
endif

CFLAGS += $(KERNELSTYLE) $(MUM_KI)

else # user compilation

## Switch for fascist warnings.
ifndef DISABLE_WARNINGS
COMMONWARNINGS+= \
	-Wundef \
	-Wall \
	-Wchar-subscripts \
	-Wsign-compare \
	-Wuninitialized -O \
	-Wno-missing-braces \
	-Werror 
CWARNINGS:=$(COMMONWARNINGS) -Wnested-externs -Wmissing-declarations -Wmissing-prototypes
CXXWARNINGS:=$(COMMONWARNINGS) -fcheck-new 
else
# For code that is compiled with DISABLE_WARNINGS=1 (Usually 3rd party) and with the
# GCC4 MIPS toolchain we want to deactivate warnings related to the signedness of pointers.
ifneq '$(filter -DGCC4_TOOLCHAIN, $(RMCFLAGS))' ''
CWARNINGS+=-Wno-pointer-sign
endif
endif

### if libc heades are needed
ifndef USE_STD_LIB
	PREPROCESSORFLAGS += -nostdinc
endif

# If standalone, we may need to enable XIP settings
ifneq '$(filter -DEM86XX_MODE=EM86XX_MODEID_STANDALONE, $(RMCFLAGS))' ''
ifneq '$(filter -DWITH_XIP=1, $(RMCFLAGS))' ''
ifeq '$(filter -DINIRQHANDLER=1, $(RMCFLAGS))' ''
CFLAGS += -D__PIC__ -fpic -msingle-pic-base
CXXFLAGS += -D__PIC__ -fpic -msingle-pic-base
LDFLAGS += -fpic -msingle-pic-base 
OBJECTFLAGS += -q 
endif
endif
endif

endif # kernel/user alternative done

## Switch to release/debug compilation ##
# The macro to do this is called ``_DEBUG'' to fit how Windows does. Sorry.
# Additionally, the C specification says that assert is defined to a nop
# if and only if NDEBUG is defined. We don't want assertions in release
# code.
ifneq '$(filter release, $(COMPILKIND))' ''

PREPROCESSORFLAGS += -U_DEBUG -DNDEBUG
CFLAGS += -O2
CXXFLAGS += -O2

else

PREPROCESSORFLAGS += -D_DEBUG=1 -UNDEBUG

ifeq '$(filter kernel, $(COMPILKIND))' '' # -g only in user compilations
ifeq "$(CCOMPILER)" "gcc"
ifeq "$(CROSS)" ""
CFLAGS += -gdwarf-2