Subversion Repositories or1k

##

## compile.am,v 1.4 2002/07/26 12:51:02 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, 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)

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)

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

## 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

# profile flag; use gprof(1)

CFLAGS_PROFILE_V=-pg

#

# How to compile stuff into ${ARCH} subdirectory

#

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

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

CCLD = $(CC)

CCASCOMPILE = $(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)

${ARCH}/%.$(OBJEXT): %.c

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

${ARCH}/%.$(OBJEXT): %.S

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

# Make foo.rel from foo.$(OBJEXT)

${ARCH}/%.rel: ${ARCH}/%.$(OBJEXT)

        ${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.$(OBJEXT) with $(ARCH)/foo.$(OBJEXT)

##       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@

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

## 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 = -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)

CPP = @CPP@ $(GCCSPECS)

##

AM_CPPFLAGS = $(RTEMS_CPPFLAGS)

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

# AM_CFLAGS = $(RTEMS_BSP_CFLAGS) $(RTEMS_CFLAGS)

AM_CCASFLAGS = $(RTEMS_BSP_CFLAGS) $(RTEMS_CPPFLAGS) $(RTEMS_ASFLAGS)