Subversion Repositories openrisc_2011-10-31

#

#  Shared compiler for all GNU tools configurations

#

#  $Id: gcc-target-default.cfg,v 1.2 2001-09-27 12:02:51 chris Exp $

#

##

# CFLAGS_OPTIMIZE_V, CFLAGS_DEBUG_V, CFLAGS_PROFILE_V are the values we

# would want the corresponding macros to be set to.

#

# CFLAGS_OPTIMIZE, CFLAGS_DEBUG, CFLAGS_PROFILE are set in the leaf

# Makefiles by the 'debug:' and 'profile:' targets to their _V values.

#

# default flags

# XCPPFLAGS, XCFLAGS, XCXXFLAGS, XASFLAGS

# are used to add flags from the shell

# cf. make.info ("Implicit rules/variables" for details)

# NOTE: Should these go to CPPFLAGS ?

CFLAGS_DEFAULT=-g -Wall -ansi -fasm

# NOTE: CPU_CFLAGS should probably be renamed to CPU_CPPFLAGS

# NOTE: CPU_DEFINES should probably be merged with CPU_CFLAGS

CPPFLAGS += $(CPU_DEFINES) $(CPU_CFLAGS) $(DEFINES) $(XCPPFLAGS)

CFLAGS   = $(CFLAGS_DEFAULT) $(XCFLAGS)

CXXFLAGS = $(CFLAGS_DEFAULT) $(XCXXFLAGS)

ASFLAGS  = $(CPU_ASFLAGS) $(XASFLAGS)

ifeq ($(RTEMS_USE_GCC272),yes)

ifeq ($(RTEMS_CROSS_TARGET),no)

ifdef RTEMS_LIBC_DIR

RTEMS_LIBC_INCLUDES := -I$(RTEMS_LIBC_DIR)/include

endif

# Used for posix bsps

CPPFLAGS += \

  -I$(PROJECT_INCLUDE) \

  $(RTEMS_LIBC_INCLUDES)

else

# Used for embedded bsps

# Ask gcc where it finds its own include files

GCC_INCLUDE=$(shell $(CC) $(CPU_CFLAGS) -print-file-name=include $(GCCSED))

CPPFLAGS += -nostdinc \

  -I$(PROJECT_INCLUDE) \

  -I$(GCC_INCLUDE) \

  -I$(RTEMS_LIBC_DIR)/sys-include \

  -I$(RTEMS_LIBC_DIR)/include

endif

# default location of Standard C Library

ifndef LIBC_LIBC

LIBC_LIBC=$(RTEMS_LIBC_DIR)/lib/libc.a

endif

ifndef LIBC_LIBM

LIBC_LIBM=$(RTEMS_LIBC_DIR)/lib/libm.a

endif

else

# NOTE: GCCSPECS probably belongs to CPPFLAGS

# Unfortunately, many custom/*.cfg files do not pass CPPFLAGS

# to their gcc-2.8 make-exe rules

GCCSPECS = -B$(PROJECT_RELEASE)/lib/ -specs bsp_specs -qrtems

CC  += $(GCCSPECS)

CXX += $(GCCSPECS)

CPPFLAGS +=

# default location of Standard C Library

ifndef LIBC_LIBC

LIBC_LIBC=$(shell $(CC) $(CPU_CFLAGS) -print-file-name=libc.a $(GCCSED))

endif

ifndef LIBC_LIBM

LIBC_LIBM=$(shell $(CC) $(CPU_CFLAGS) -print-file-name=libm.a $(GCCSED))

endif

endif

# Define this to yes if C++ is included in the development environment.

# This requires that at least the GNU C++ compiler and libg++ be installed.

ifeq ($(HAS_CPLUSPLUS),yes)

CPLUS_LD_LIBS += $(PROJECT_RELEASE)/lib/librtems++$(LIBSUFFIX_VA)

endif

# debug flag;

CFLAGS_DEBUG_V+=-Wno-unused

ifeq ($(RTEMS_USE_GCC272),no)

CFLAGS_DEBUG_V+=-qrtems_debug

endif

# profile flag; use gprof(1)

CFLAGS_PROFILE_V=-pg

ifndef AUTOMAKE

# default is to optimize

CFLAGS_OPTIMIZE=$(CFLAGS_OPTIMIZE_V)

endif

# dynamic libraries

#CFLAGS_DYNAMIC_V=-fpic

#ASFLAGS_DYNAMIC_V=

ifndef AUTOMAKE

CFLAGS += $(CFLAGS_OPTIMIZE) $(CFLAGS_DEBUG) $(CFLAGS_PROFILE)

endif

# List of library paths without -L

LD_PATHS= $(PROJECT_RELEASE)/lib

# libraries you want EVERYONE to link with

#LD_LIBS=

# ld flag to ensure pure-text

#LDFLAGS_MUST_BE_PURE_V =

# ld flag for [un]shared objects

#LDFLAGS_STATIC_LIBRARIES_V =

#LDFLAGS_SHARED_LIBRARIES_V =

# ld flag for incomplete link

LDFLAGS_INCOMPLETE = -r

# Special linker options when building lib.so

LDFLAGS_DYNAMIC_V = ??

# Some dynamic linking systems want the preferred name recorded in the binary

# ref: src/libxil/Makefile

LDFLAGS_DYNAMIC_LIBNAME_V = -h $(DYNAMIC_VERSION_LIBNAME)

# ld flags for profiling, debugging

LDFLAGS_PROFILE_V =

LDFLAGS_DEBUG_V =

LDFLAGS=$(LDFLAGS_PROFILE) $(LDFLAGS_DEBUG) $(LD_PATHS:%=-L %)

#

# Stuff to clean and clobber for the compiler and its tools

#

CLEAN_CC = a.out *.o *.BAK

CLOBBER_CC =

#

# Client compiler and support tools

#

# CPP command to write file to standard output

CPP=$(CC) -E -ansi -w -Wp,-$$

# flags set by cc when running cpp

# NOTE: CPP_CC_FLAGS does not seem to be used anywhere

# CPP_CC_FLAGS=-D__STDC__

# egrep regexp to ignore symbol table entries in ar archives.

# Only used to make sure we skip them when coalescing libraries.

# skip __.SYMDEF and empty names (maybe bug in ranlib??).

AR_SYMBOL_TABLE="HIGHLY-UNLIKELY-TO-CONFLICT"

ARFLAGS=ruv

#

# How to compile stuff into ${ARCH} subdirectory

#

${ARCH}/%.o: %.c

        ${COMPILE.c} $(AM_CPPFLAGS) $(AM_CFLAGS) -o $@ $<

${ARCH}/%.o: %.cc

        ${COMPILE.cc} $(AM_CPPFLAGS) $(AM_CXXFLAGS) -o $@ $<

${ARCH}/%.o: %.cpp

        ${COMPILE.cc} $(AM_CPPFLAGS) $(AM_CXXFLAGS) -o $@ $<

${ARCH}/%.o: %.cxx

        ${COMPILE.cc} $(AM_CPPFLAGS) $(AM_CXXFLAGS) -o $@ $<

${ARCH}/%.o: %.C

        ${COMPILE.cc} $(AM_CPPFLAGS) $(AM_CXXFLAGS) -o $@ $<

${ARCH}/%.o: %.S

        ${COMPILE.S} $(AM_CPPFLAGS) -DASM -o $@ $<

# Make foo.rel from foo.o

${ARCH}/%.rel: ${ARCH}/%.o

        ${make-rel}

# create $(ARCH)/pgm from pgm.sh

${ARCH}/%: %.sh

        $(RM) $@

        $(CP) $< $@

        $(CHMOD) +x $@

# Dependency files for use by gmake

# NOTE: we don't put them into $(ARCH)

#       so that 'make clean' doesn't blow it away

DEPEND=Depends-${ARCH}

CLEAN_DEPEND=$(DEPEND).tmp

CLOBBER_DEPEND=$(DEPEND)

# We deliberately don't have anything depend on the

# $(DEPEND) file; otherwise it will get rebuilt even

# on 'make clean'

#

depend-am: $(C_FILES) $(CC_FILES) $(S_FILES)

ifneq ($(words $(C_FILES) $(CC_FILES) $(S_FILES)), 0)

#       Use gcc -M to generate dependencies

#       Replace foo.o with $(ARCH)/foo.o

#       Replace $(ARCH) value with string $(ARCH)

#           so that it will for debug and profile cases

        $(COMPILE.c) $(AM_CPPFLAGS) $(AM_CFLAGS) -M   $^    |  \

        $(SED) -e 's?^\(.*\)\.o[ ]*:?$$(ARCH)/\1.o:?' \

            -e 's?$(ARCH)/?$$(ARCH)/?'   >$(DEPEND).tmp

        $(MV) $(DEPEND).tmp $(DEPEND)

endif

depend: depend-am

# spell out all the LINK_FILE's, rather than using -lbsp, so

#  that $(LINK_FILES) can be a dependency

# Start file must be one of

#    $(PROJECT_RELEASE)/lib/start$(LIB_VARIANT).o

#    $(PROJECT_RELEASE)/lib/asmiface$(LIB_VARIANT).o

# It defaults to start.o, but an app can override it.

ifeq ($(START_BASE),)

  START_FILE=

else

  START_FILE=$(PROJECT_RELEASE)/lib/$(START_BASE)$(LIB_VARIANT).o

endif

CONSTRUCTOR=

LIBC_LOW=

ifndef LIBGCC

LIBGCC = $(shell $(CC) $(CFLAGS) -print-libgcc-file-name $(GCCSED))

endif

#

# NOTE: a rule to link an rtems' application should look similar to this

#       (cf. "make-exe" in make/custom/*.cfg):

#

# gcc27:

# $(PGM): $(LINK_FILES)

#       $(LD) $(LDFLAGS) -o $@ $(LINK_OBJS) \

#       --start-group $(LINK_LIBS) --end-group

#

# gcc28:

# $(PGM): $(LINK_FILES)

#       $(CC) $(CFLAGS) -o $@ $(LINK_OBJS) $(LINK_LIBS)

#

LINK_OBJS =\

    $(CONSTRUCTOR) \

    $(OBJS) \

    $(MANAGERS_NOT_WANTED:%=$(PROJECT_RELEASE)/lib/no-%$(LIB_VARIANT).rel)

LINK_FILES =\

    $(START_FILE) \

    $(CONSTRUCTOR) \

    $(OBJS) \

    $(MANAGERS_NOT_WANTED:%=$(PROJECT_RELEASE)/lib/no-%$(LIB_VARIANT).rel) \

    $(PROJECT_RELEASE)/lib/librtemsall$(LIBSUFFIX_VA)

ifeq ($(RTEMS_USE_GCC272),yes)

LINK_LIBS = $(PROJECT_RELEASE)/lib/librtemsall$(LIBSUFFIX_VA)

ifeq ($(RTEMS_CROSS_TARGET),yes)

# NOTE: add libc and libgcc only for embedded targets

#       LIBC_LIBM should not be needed by rtems itself.

# FIXME: If a BSP requires libm, its make/custom/*.cfg file should add

#        LIBC_LIBM to LINK_LIBS (untested)

LINK_LIBS += $(LIBC_LIBC) $(LIBGCC)

endif

endif

LINK_LIBS += $(LD_LIBS)

#

# Allow user to override link commands (to build a prom image, perhaps)

#

ifndef LINKCMDS

LINKCMDS=$(PROJECT_RELEASE)/lib/linkcmds

endif

ifeq ($(RTEMS_USE_GCC272),yes)

define make-rel

        $(LD) $(LDFLAGS_INCOMPLETE) $(XLDFLAGS) -o $@ $^

endef

else

define make-rel

        $(LINK.c) $(AM_CFLAGS) $(AM_LDFLAGS) \

          -qnolinkcmds -nostdlib -Wl,-r $(XLDFLAGS) -o $@ $^

endef

endif