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##

## compile.am,v 1.18 2002/07/22 09:17:40 ralf Exp

##

## -------------------------------------------------------------------------

## NOTE: This file is rather immature and has to be considered to be

## almost experimental.

##

## Expect frequent changes -- It deserves to be cleaned up :(

## -------------------------------------------------------------------------

## The section below is based on make/compilers/gcc-target-default.cfg

## used in former versions of RTEMS.

##

## Set up the flags for the toolchains:

##

## We are considering 3 different building schemes here:

## * Using gcc's being able to accept -specs (aka gcc-2.8 building scheme)

## * Using gcc's not being able to accept -specs (aka gcc-2.7.2 building

##   scheme)

## * Using third party toolchains (aka non-gcc building scheme)

##

## Automake conditionals in use:

## RTEMS_USE_GCC     .. if we are using GCC

## NOTES:

## * The gcc-2.8 building scheme is the nominal building scheme and

##   is actively supported.

## * The non-gcc building scheme requires manually setting up environment

##   variables and is hardly tested at all

## 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 by the

## 'VARIANT=' targets to their _V values.

## XCPPFLAGS, XCFLAGS, XCXXFLAGS, XASFLAGS

## are used to add flags from the shell

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

if RTEMS_USE_GCC

## All the stuff below is specific to gcc

CFLAGS_DEFAULT=-g -Wall

## gcc >= 2.8.x

GCCSPECS = $(GCC_SPECS) $(RTEMS_BSP_SPECS)

else

## fall back to the old style compilers/*.cfg

## CONFIG.CC is supposed to be provided by .cfg

include $(CONFIG.CC)

endif # RTEMS_USE_GCC

DEFS = @DEFS@

CPPFLAGS = @CPPFLAGS@ $(CPU_DEFINES) \

   $(DEFINES) $(XCPPFLAGS) $(CPPFLAGS_GCC)

CFLAGS   = $(CFLAGS_DEFAULT) $(CPU_CFLAGS) $(XCFLAGS)

CXXFLAGS = $(CFLAGS_DEFAULT) $(CPU_CFLAGS) $(XCXXFLAGS)

ASFLAGS  = $(CPU_ASFLAGS) $(CPU_CFLAGS) $(XASFLAGS)

LINK_LIBS = $(LD_LIBS)

## FIXME: This doesn't seem to be correct

# when debugging, optimize flag: typically empty

# some compilers do allow optimization with their "-g"

CFLAGS_DEBUG_OPTIMIZE_V=-g

CXXFLAGS_DEBUG_OPTIMIZE_V=-g

LDFLAGS_DEBUG_V =

# profile flag; use gprof(1)

CFLAGS_PROFILE_V=-pg

CXXFLAGS_PROFILE_V=-pg

LDFLAGS_PROFILE_V =

# List of library paths without -L

LD_PATHS= $(PROJECT_RELEASE)/lib

# ld flag for incomplete link

LDFLAGS_INCOMPLETE = -r

# ld flags for profiling, debugging

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

#

# Client compiler and support tools

#

#

# How to compile stuff into ${ARCH} subdirectory

#

COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \

        $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)

CCLD = $(CC)

LINK = $(CCLD) $(AM_CFLAGS) $(CFLAGS) \

        $(AM_LDFLAGS) $(LDFLAGS) -o $@

CXXCOMPILE = $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \

        $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)

CXXLD = $(CXX)

CXXLINK = $(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) \

        $(AM_LDFLAGS) $(LDFLAGS) -o $@

AS = $(CC)

ASCOMPILE = $(AS) $(AM_ASFLAGS) $(ASFLAGS)

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

        test -d $(ARCH) || mkdir $(ARCH)

        ${COMPILE} -o $@ -c $<

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

        test -d $(ARCH) || mkdir $(ARCH)

        ${CXXCOMPILE} -o $@ -c $<

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

        test -d $(ARCH) || mkdir $(ARCH)

        ${CXXCOMPILE} -o $@ -c $<

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

        test -d $(ARCH) || mkdir $(ARCH)

        ${CXXCOMPILE} -o $@ -c $<

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

        test -d $(ARCH) || mkdir $(ARCH)

        ${CXXCOMPILE} -o $@ -c $<

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

        test -d $(ARCH) || mkdir $(ARCH)

        ${ASCOMPILE} -DASM -o $@ -c $<

# Make foo.rel from foo.o

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

        test -d $(ARCH) || mkdir $(ARCH)

        ${make-rel}

# 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'

#

## HACK: Specific to gcc

## FIXME: The approach below is known to be conceptionally broken.

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

##       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) -M   $^    |  \

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

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

        mv $(DEPEND).tmp $(DEPEND)

depend: depend-am

# pull in dependencies if they exist

ifeq (${DEPEND},$(wildcard ${DEPEND}))

include ${DEPEND}

@ENDIF@

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

#  that $(LINK_FILES) can be a dependency

LINK_OBJS = \

    $(OBJS) \

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

LINK_FILES =\

    $(START_FILE) \

    $(OBJS) \

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

if RTEMS_USE_GCC

## gcc >= 2.8

define make-rel

        $(LINK) -qnolinkcmds -nostdlib -Wl,-r $(XLDFLAGS) $^

endef

else

## non-gcc

define make-rel

        $(LINK) $(XLDFLAGS) $^

endef

endif

## -------------------------------------------------------------------------

## translate VARIANT into VARIANT_V

VARIANT = OPTIMIZE

VARIANT_OPTIMIZE_V = OPTIMIZE

VARIANT_DEBUG_V = DEBUG

VARIANT_PROFILE_V = PROFILE

VARIANT_optimize_V = OPTIMIZE

VARIANT_debug_V = DEBUG

VARIANT_profile_V = PROFILE

VARIANT_V = $(VARIANT_$(VARIANT)_V)

## Setup the variant build subdirectory

ARCH_OPTIMIZE_V = o-optimize

ARCH_DEBUG_V = o-debug

ARCH_PROFILE_V = o-profile

ARCH__V = $(ARCH_OPTIMIZE_V)

ARCH = $(ARCH_$(VARIANT_V)_V)

## Setup the library suffix

LIBSUFFIX_OPTIMIZE_V =

LIBSUFFIX_DEBUG_V = _g

LIBSUFFIX_PROFILE_V = _p

LIBSUFFIX__V = $(LIBSUFFIX_OPTIMIZE_V)

LIB_VARIANT = $(LIBSUFFIX_$(VARIANT_V)_V)

LIBSUFFIX_VA = $(LIB_VARIANT).a

## These are supposed to be set in make/custom/.cfg

## CFLAGS_OPTIMIZE_V =

## CFLAGS_DEBUG_V =

## CFLAGS_PROFILE_V =

CFLAGS__V = $(CFLAGS_OPTIMIZE_V)

## ------------------------------------------------------------------------

## Setup hard-coded flags

if RTEMS_USE_GCC

## gcc >= gcc-2.8

RTEMS_CFLAGS_OPTIMIZE_V =

RTEMS_CFLAGS_DEBUG_V = -qrtems_debug -Wno-unused

RTEMS_CFLAGS_PROFILE_V =

## non-gcc

## We can't guess what flags might be required here.

## Pass the values from the environment if you want to apply them.

endif

RTEMS_CFLAGS__V = $(RTEMS_CFLAGS_OPTIMIZE_V)

## -------------------------------------------------------------------------

CC = @CC@ $(GCCSPECS)

CXX = @CXX@ $(GCCSPECS)

CPP = @CPP@ $(GCCSPECS)

LD = @LD@

OBJCOPY = @OBJCOPY@

NM = @NM@

SIZE = @SIZE@

STRIP = @STRIP@

##

AM_CPPFLAGS = $(RTEMS_CPPFLAGS)

AM_CFLAGS = $(RTEMS_CFLAGS_$(VARIANT_V)_V) $(CFLAGS_$(VARIANT_V)_V)

AM_CXXFLAGS = $(RTEMS_CFLAGS_$(VARIANT_V)_V) $(CFLAGS_$(VARIANT_V)_V)