gcc.gmk

This is a resource based on j2me embedded,if you dont understand,you can connection with me .

#
#   
#
# Copyright  1990-2007 Sun Microsystems, Inc. All Rights Reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
# 
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License version
# 2 only, as published by the Free Software Foundation.
# 
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License version 2 for more details (a copy is
# included at /legal/license.txt).
# 
# You should have received a copy of the GNU General Public License
# version 2 along with this work; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
# 02110-1301 USA
# 
# Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
# Clara, CA 95054 or visit www.sun.com if you need additional
# information or have any questions.
#
######################################################################
#
# Generic compiler specific defines
# MIDP specific directories and libraries defines will be in gcc-jtwi.gmk.
#
######################################################################
#
# The following variables are required to be defined here:
#
# File suffixes
#
# LIB_SUFFIX       suffix of library file
# LIB_PREFIX        prefix of library file
# OBJ_SUFFIX       suffix of object file
#
# Compiler definitions
#
# CC		   compiler command for c files
# CPP		   compiler command for c++ files
# CC_OUTPUT	   compiler option used to specify name of output file
#
# Linker definitions
#
# LD		   linker command
# LINKER_OUTPUT	   linker option used to specify output name
#
# Archiver or library command
#
# AR		   command that creates a library
#
# Some optional variables
#
# AR_FLAGS	   flags for the library command
# LIBS		   libraries to be linked with
# LD_FLAGS         linker flags
# EXTRA_CFLAGS     flags for c compiler 
# EXTRA_CPPFLAGS   flags for c++ compiler
# 
#
######################################################################
ifdef GNU_TOOLS_DIR
    GNU_TOOLS_BINDIR?=$(GNU_TOOLS_DIR)/bin/
else
    ifeq ($(TARGET_CPU), arm)
	# Export GNU_TOOLS_DIR to VM makefile
	export GNU_TOOLS_DIR=/opt/Embedix/tools/arm-linux
	GNU_TOOLS_BINDIR?=$(GNU_TOOLS_DIR)/bin/
    else
	# Otherwise, use gcc command from path
	GNU_TOOLS_BINDIR=
    endif
endif

# Suffix
LIB_SUFFIX      = .a
LIB_PREFIX      = lib
SHARED_LIB_SUFFIX = .so
OBJ_SUFFIX      = o

# Same defines when used as either TARGET or HOST COMPILER
ifndef USE_GCC 
USE_GCC		= true
endif
ifndef GCC_VERSION
GCC_VERSION	=
endif

CC		= $(GNU_TOOLS_BINDIR)gcc$(GCC_VERSION)
CPP		= $(GNU_TOOLS_BINDIR)g++$(GCC_VERSION)
CC_OUTPUT	= -o

LD		= $(GNU_TOOLS_BINDIR)g++$(GCC_VERSION)
LINKER_OUTPUT	= -o
LIBS		+= -lpthread -lm -lnsl

# Options to force single-pass linker to search undefined references repeatly.
# Note. '-Wl,' option cannot be used instead of -Xlinker
LD_START_GROUP = -Xlinker --start-group
LD_END_GROUP = --end-group

AR		= $(GNU_TOOLS_BINDIR)ar
CREATE_LIB	= $(AR) -rcs
LIB_OUTPUT      =
RANLIB  = $(GNU_TOOLS_BINDIR)ranlib

# commands for AR mri script
MRI_ADD = 'ADDMOD '
MRI_CREATE = 'CREATE '
MRI_SAVE = 'SAVE'
MRI_OPT = -M <

ASM		= $(GNU_TOOLS_BINDIR)as
ASM_FLAGS	= -W
ASM_OUTPUT	= -o
ASMGEN_OPTIONS	+= +GenerateGNUCode

ifneq ($(TARGET_VM), cdc_vm)
# CDC port is not yet clear of warnings.
ifneq ($(TARGET_OS), javacall)
# javacall is not clear of warnings
EXTRA_CFLAGS	+= -Werror
endif
endif

include $(MIDP_DIR)/build/common/makefiles/gcc-warnings.gmk

EXTRA_CFLAGS	+= -DGCC

ifeq ($(TARGET_VM), cdc_vm)
ifneq ($(CVM_STATICLINK_LIBS), true)
LD_FLAGS += -shared
endif
endif

ifeq ($(USE_NATIVE_PROFILER), true)
EXTRA_CFLAGS	+= -pg
LD_FLAGS	+= -pg
endif

ifeq ($(USE_GCOV), true)
EXTRA_CFLAGS	 += -O0 -fprofile-arcs -ftest-coverage
EXTRA_CPPFLAGS	 += -O0 -fprofile-arcs -ftest-coverage
LIBS	+= -lgcov
endif

ifeq ($(USE_DEBUG), true)
EXTRA_CFLAGS	+= -g -D_DEBUG
LD_FLAGS	+= -g
else
ifneq ($(USE_GCOV), true)
EXTRA_CFLAGS	+= -O3 -fexpensive-optimizations
EXTRA_CPPFLAGS	+= -fconserve-space
endif
ifeq ($(USE_NATIVE_PROFILER), false)
EXTRA_CFLAGS	+= -s -fomit-frame-pointer
endif
endif

# command to display information about GCC
DISPLAY_CC_VERSION = `$(CC) --version | head -n 1`
DISPLAY_CPP_VERSION = `$(CPP) --version | head -n 1`