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|
#
# Shared compiler for all GNU tools configurations
#
# $Id$
#
##
# 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
# 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) $(XASFLAGS)
# NOTE: GCCSPECS probably belongs to CPPFLAGS
# Unfortunately, many custom/*.cfg files do not pass CPPFLAGS
# to their gcc-2.8 make-exe rules
GCCSPECS = -B$(PROJECT_RELEASE)/lib/ -specs bsp_specs -qrtems
CC += $(GCCSPECS)
CXX += $(GCCSPECS)
CPPFLAGS +=
# Define this to yes if C++ is included in the development environment.
# This requires that at least the GNU C++ compiler and libg++ be installed.
ifeq ($(HAS_CPLUSPLUS),yes)
CPLUS_LD_LIBS += $(PROJECT_RELEASE)/lib/librtems++$(LIBSUFFIX_VA)
endif
# debug flag;
CFLAGS_DEBUG_V+=-Wno-unused
CXXFLAGS_DEBUG_V+=
CFLAGS_DEBUG_V+=-qrtems_debug
CXXFLAGS_DEBUG_V+=-qrtems_debug
# when debugging, optimize flag: typically empty
# some compilers do allow optimization with their "-g"
CFLAGS_OPTIMIZE_V+=-g
CXXFLAGS_OPTIMIZE_V+=-g
# profile flag; use gprof(1)
CFLAGS_PROFILE_V+=-pg
CXXFLAGS_PROFILE_V+=-pg
ifndef AUTOMAKE
CFLAGS_$(VARIANT) =$(CFLAGS_$(VARIANT)_V)
CXXFLAGS_$(VARIANT)=$(CXXFLAGS_$(VARIANT)_V)
endif
ifndef AUTOMAKE
CFLAGS += $(CFLAGS_OPTIMIZE) $(CFLAGS_DEBUG) $(CFLAGS_PROFILE)
CXXFLAGS += $(CXXFLAGS_OPTIMIZE) $(CXXFLAGS_DEBUG) $(CXXFLAGS_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 $(DYNAMIC_VERSION_LIBNAME)
# ld flags for profiling, debugging
LDFLAGS_PROFILE_V =
LDFLAGS_DEBUG_V = -qrtems_debug
LDFLAGS=$(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 -w -Wp,-$$
# 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
#
# NOTE: a rule to link an rtems' application should look similar to this
# (cf. "make-exe" in make/custom/*.cfg):
#
# 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) \
$(PROJECT_RELEASE)/lib/librtemsbsp$(LIBSUFFIX_VA) \
$(PROJECT_RELEASE)/lib/librtemscpu$(LIBSUFFIX_VA)
LINK_LIBS += $(LD_LIBS)
#
# Allow user to override link commands (to build a prom image, perhaps)
#
ifndef LINKCMDS
LINKCMDS=$(PROJECT_RELEASE)/lib/linkcmds
endif
define make-rel
$(LINK.c) $(CFLAGS) $(AM_CFLAGS) $(AM_LDFLAGS) \
-qnolinkcmds -nostdlib -Wl,-r $(XLDFLAGS) -o $@ $^
endef
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