makefile.rules

一个linux下rs485驱动程序的源代码

#  Makefile.rules - OCERA make framework common project rules -*- makefile -*-
#   
#  (C) Copyright 2003 by Pavel Pisa - OCERA team member
#
#  The uLan driver is distributed under the Gnu General Public License. 
#  See file COPYING for details.
#
#
# input variables
# V                .. if set to 1, full command text is shown else short form is used
# SUBDIRS          .. list of subdirectories intended for make from actual directory
# lib_LIBRARIES    .. list of the user-space libraries
# shared_LIBRARIES .. list of the user-space shared libraries
# kernel_LIBRARIES .. list of the kernel-space libraries
# rtlinux_LIBRARIES.. list of the RT-Linux kernel-space libraries
# include_HEADERS  .. list of the user-space public header files
# nobase_include_HEADERS .. public headers copied even with directory part
# renamed_include_HEADERS .. public headers copied to the different target name
# kernel_HEADERS   .. list of the kernel-space public header files
# rtlinux_HEADERS  .. list of the RT-Linux kernel-space public header files
# bin_PROGRAMS     .. list of the require binary programs
# utils_PROGRAMS   .. list of the development utility programs
# kernel_MODULES   .. list of the kernel side modules/applications
# rtlinux_MODULES  .. list of RT-Linux the kernel side modules/applications
# xxx_SOURCES      .. list of specific target sources
# INCLUDES         .. additional include directories and defines for user-space
# kernel_INCLUDES  .. additional include directories and defines for kernel-space
# rtlinux_INCLUDES .. additional include directories and defines for RT-Linux
# default_CONFIG   .. list of default config assignments CONFIG_XXX=y/n ...
#
# LINUX_DIR        .. location of Linux kernel sources
# RTL_DIR          .. location of RT-Linux sources

# Hack to check RT-Linux rules
#LINUX_DIR := /home/cvs/ocera/ocera-build/kernel/linux
#RTL_DIR := /home/cvs/ocera/ocera-build/kernel/rtlinux
#CONFIG_RTLINUX = y
#OCERA_DIR := $(shell ( cd -L $(MAKERULES_DIR)/../../.. ; pwd -L ) )

BUILD_DIR_NAME = _build
COMPILED_DIR_NAME = _compiled
ifndef GROUP_DIR_NAME
GROUP_DIR_NAME = nogroup
endif

# We need to ensure definition of sources directory first
ifndef SOURCES_DIR
SOURCES_DIR := $(shell ( pwd -L ) )
endif

all: default

ifdef OCERA_DIR
ifeq ($(wildcard $(OCERA_DIR)/ocera.mk),)
$(warning "ocera.mk" file does not exist. Adapt Makefile.rules for standalone compilation)
$(warning (comment out definition of OCERA_DIR line and optionally select RTL_DIR) )
$(error or go to the ocera/ directory and do 'make' to generate the "ocera.mk" file first, please)
endif
include $(OCERA_DIR)/ocera.mk
KERN_INCLUDE_DIR := $(OCERA_KERNEL_INCLUDES_DIR)
KERN_LIB_DIR     := $(OCERA_KERNEL_LIBRARIES_DIR)
KERN_MODULES_DIR := $(OCERA_MODULES_DIR)
KERN_BUILD_DIR   := $(BUILD_DIR)/kern/$(GROUP_DIR_NAME)
KERN_MODPOST_DIR := $(BUILD_DIR)/kern-modpost
USER_INCLUDE_DIR := $(OCERA_USER_INCLUDES_DIR)
USER_LIB_DIR     := $(OCERA_USER_LIBRARIES_DIR)
USER_UTILS_DIR   := $(TARGET_DIR)/usr/bin
USER_BIN_DIR     := $(TARGET_DIR)/usr/bin
USER_BUILD_DIR   := $(BUILD_DIR)/user/$(GROUP_DIR_NAME)
#LINUX_DIR        := $(OCERA_DIR)/kernel/linux
#RTL_DIR          := $(OCERA_DIR)/kernel/rtlinux
#CONFIG_FILE      := $(OCERA_DIR)/emdebsys/.config 
ifneq ($(wildcard $(CONFIG_FILE)),)
#include $(CONFIG_FILE)
CONFIG_FILE_OK = y
endif
else # OCERA_DIR
KERN_INCLUDE_DIR := $(MAKERULES_DIR)/$(COMPILED_DIR_NAME)/include-kern
KERN_LIB_DIR     := $(MAKERULES_DIR)/$(COMPILED_DIR_NAME)/lib-kern
KERN_MODULES_DIR := $(MAKERULES_DIR)/$(COMPILED_DIR_NAME)/modules
KERN_BUILD_DIR   := $(MAKERULES_DIR)/$(BUILD_DIR_NAME)/kern
KERN_MODPOST_DIR := $(MAKERULES_DIR)/$(BUILD_DIR_NAME)/kern-modpost
USER_INCLUDE_DIR := $(MAKERULES_DIR)/$(COMPILED_DIR_NAME)/include
USER_LIB_DIR     := $(MAKERULES_DIR)/$(COMPILED_DIR_NAME)/lib
USER_UTILS_DIR   := $(MAKERULES_DIR)/$(COMPILED_DIR_NAME)/bin-utils
USER_BIN_DIR     := $(MAKERULES_DIR)/$(COMPILED_DIR_NAME)/bin
USER_BUILD_DIR   := $(MAKERULES_DIR)/$(BUILD_DIR_NAME)/user
ifndef CONFIG_FILE
CONFIG_FILE      := $(MAKERULES_DIR)/config.omk
endif
ifneq ($(wildcard $(CONFIG_FILE)-default),)
-include $(CONFIG_FILE)-default
else
$(warning Please, run "make default-config" first)
endif
ifneq ($(wildcard $(CONFIG_FILE)),)
include $(CONFIG_FILE)
CONFIG_FILE_OK = y
endif
ifndef LINUX_VERSION
LINUX_VERSION=$(shell uname -r)
endif
ifndef LINUX_DIR
LINUX_DIR=/lib/modules/$(LINUX_VERSION)/build
endif
endif # OCERA_DIR

# Check and include real OCERA style Makefile.omk now
ifndef OMK_INCLUDED
include $(SOURCES_DIR)/Makefile.omk
OMK_INCLUDED := 1
endif

ifeq ($(TARGET_OS),)
  # Check for target
  ifeq ($(OS),Windows_NT)
    TARGET_OS = win32
  else
    TARGET_OS = $(shell uname | tr '[A-Z]' '[a-z]' )
    #$(warning TARGET_OS=$(TARGET_OS))
  endif
endif

export SOURCES_DIR MAKERULES_DIR RELATIVE_DIR LINUX_DIR LINUX_VERSION RTL_DIR
export CONFIG_FILE OMK_SERIALIZE_INCLUDED OMK_VERBOSE OMK_SILENT
export TARGET_OS NM

ifeq ($(NM),)
  NM = nm
endif

#CFLAGS += -ggdb
CFLAGS += -O2 
CFLAGS += -Wall
#CXXFLAGS += -ggdb
CXXFLAGS += -O2
CXXFLAGS += -Wall


CPPFLAGS  += -I $(USER_INCLUDE_DIR)

LOADLIBES += -L$(USER_LIB_DIR) 

LOADLIBES += $(lib_LOADLIBES:%=-l%)

LIB_CPPFLAGS += $(CPPFLAGS)
LIB_CFLAGS   += $(CFLAGS)

ifeq ($(TARGET_OS),win32)
  SOLIB_EXT = dll
else
  SOLIB_EXT = so
  SOLIB_PICFLAGS += -fpic
endif

ifndef RELATIVE_DIR
RELATIVE_DIR := $(SOURCES_DIR:$(MAKERULES_DIR)%=%)
endif
override RELATIVE_DIR := $(RELATIVE_DIR:/%=%)
override RELATIVE_DIR := $(RELATIVE_DIR:\\%=%)
#$(warning  RELATIVE_DIR $(RELATIVE_DIR))
override BACK2TOP_DIR := $(shell echo $(RELATIVE_DIR)/ | sed -e 's_//_/_g' -e 's_/\./_/_g' -e 's_^\./__g'  -e 's_\([^/][^/]*\)_.._g' -e 's_/$$__')
#$(warning  BACK2TOP_DIR $(BACK2TOP_DIR))

#$(warning SOURCES_DIR = $(SOURCES_DIR))
#$(warning MAKERULES_DIR = $(MAKERULES_DIR))
#$(warning RELATIVE_DIR = $(RELATIVE_DIR))

override RELATIVE_PREFIX := $(RELATIVE_DIR)/
override RELATIVE_PREFIX := $(RELATIVE_PREFIX:/%=%)

#vpath %.c $(SOURCES_DIR)
#vpath %.cc $(SOURCES_DIR)
#vpath %.cxx $(SOURCES_DIR)

VPATH = $(SOURCES_DIR)
srcdir = $(SOURCES_DIR)

USER_OBJS_DIR = $(USER_BUILD_DIR)/$(RELATIVE_DIR)
KERN_OBJS_DIR = $(KERN_BUILD_DIR)/$(RELATIVE_DIR)

.PHONY: default dep subdirs clean clean-custom cleandepend default-config
.PHONY: check-make-ver check-dir include-pass library-pass binary-pass utils-pass
.PHONY: kernel-lib-pass kernel-pass kernel-mod-pass kernel-modpost-pass default-config-pass
.PHONY: check-dir-local include-pass-local library-pass-local binary-pass-local 
.PHONY: utils-pass-local kernel-lib-pass-local kernel-mod-pass-local kernel-modpost-pass-local
.PHONY: default-config-pass-local

# Some support to serialize some targets for parallel make
ifneq ($(OMK_SERIALIZE_INCLUDED),y)
include-pass: check-dir
library-pass: include-pass
binary-pass utils-pass: library-pass
kernel-lib-pass: include-pass
kernel-mod-pass: kernel-lib-pass
kernel-modpost-pass: kernel-mod-pass
kernel-pass: kernel-mod-pass kernel-modpost-pass

OMK_SERIALIZE_INCLUDED = y
endif

# Defines for quiet compilation
ifdef V
  ifeq ("$(origin V)", "command line")
    OMK_VERBOSE = $(V)
  endif
endif
ifndef OMK_VERBOSE
  OMK_VERBOSE = 0
endif
ifeq ($(OMK_VERBOSE),1)
  Q =
else
  Q = @
endif
ifneq ($(findstring s,$(MAKEFLAGS)),)
  QUIET_CMD_ECHO = true
  OMK_SILENT = 1
else
  QUIET_CMD_ECHO = echo
  CPHEADER_FLAGS += -v
endif

default: check-make-ver check-dir include-pass library-pass binary-pass utils-pass kernel-lib-pass kernel-pass

#=====================================================================
# Common utility rules

define mkdir_def
	[ -d $(1) ] || mkdir -p $(1) || exit 1
endef

# Syntax: $(call BUILD_CONFIG_H_template,<header_file_path>,<list_of_options_to_export>,<header_barrier>)
define BUILD_CONFIG_H_template

$(1) : $(wildcard $(CONFIG_FILE)) $(wildcard $(CONFIG_FILE)-default)
	@$(QUIET_CMD_ECHO) "  CONFGEN $$@ in `pwd`"
	@if [ ! -d `dirname $(1).tmp` ] ; then \
		mkdir `dirname $(1).tmp` ; fi
	@echo "/* Automatically generated from */" > "$(1).tmp"
	@echo "/* config file: $$< */" >> "$(1).tmp"
	@echo "#ifndef $(3)" >> "$(1).tmp"
	@echo "#define $(3)" >> "$(1).tmp"
	@( $(foreach x, $(shell echo '$($(2))' | sed -e 's/\<\([^ =]*\)\(=[^ ]\+\|\)\>/\1/g' ), \
		echo '$(x).$($(x))' ; ) echo ; ) | \
		sed -e '/^[^.]*\.n$$$$/d' -e '/^[^.]*\.$$$$/d' -e 's/^\([^.]*\)\.[ym]$$$$/\1.1/' | \
		sed -n -e 's/^\([^.]*\)\.\(.*\)$$$$/#define \1 \2/p' \
		  >> "$(1).tmp"
	@echo "#endif /*$(3)*/" >> "$(1).tmp"
	@if cmp --quiet "$(1).tmp" "$(1)" ; then \
	echo rm "$(1).tmp" ; \
	else mv "$(1).tmp" "$(1)" ; \
	echo Updated configuration "$(1)" ; fi

endef

ifdef LOCAL_CONFIG_H

$(eval $(call BUILD_CONFIG_H_template,$(LOCAL_CONFIG_H),default_CONFIG,_LOCAL_CONFIG_H) )

endif

check-make-ver:
	@GOOD_MAKE_VERSION=`echo $(MAKE_VERSION) | sed -n -e 's/^[4-9]\..*\|^3\.9[0-9].*\|^3\.8[1-9].*/y/p'` ; \
	if [ x$$GOOD_MAKE_VERSION != xy ] ; then \
		echo "Your make program version is too old and does not support OMK system." ; \
		echo "Please update to make program 3.81beta1 or newer." ; exit 1 ; \
	fi

#=====================================================================
# User-space rules and templates to compile programs, libraries etc.

ifdef USER_RULE_TEMPLATES

USER_SOURCES2OBJS = .o/.c .o/.cc .o/.cxx .o/.o

USER_SOURCES2OBJSLO = .lo/.c .lo/.cc .lo/.cxx .lo/.lo

#%.lo: %.c
#	$(CC) -o $@ $(LCFLAGS) -c $<

c_o_COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -DOMK_FOR_USER

cc_o_COMPILE = $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -DOMK_FOR_USER

idl_COMPILE = $(IDL_COMPILER)

# Check GCC version for user build
ifndef CC_MAJOR_VERSION
CC_MAJOR_VERSION := $(shell $(CC) -dumpversion | sed -e 's/\([^.]\)\..*/\1/')
endif
# Prepare suitable define for dependency building
ifeq ($(CC_MAJOR_VERSION),2)
CC_DEPFLAGS = -Wp,-MD,"$@.d.tmp"
else
CC_DEPFLAGS = -MT $@ -MD -MP -MF "$@.d.tmp"
endif


# Syntax: $(call COMPILE_c_o_template,<source>,<target>,<additional c-flags>)
define COMPILE_c_o_template
$(2): $(1) $(LOCAL_CONFIG_H) $$(GEN_HEADERS)
	@$(QUIET_CMD_ECHO) "  CC      $$@"
	$(Q) if $$(c_o_COMPILE) $$(CC_DEPFLAGS) $(3) -o $$@ -c $$< ; \