# rules.tool - rules for extracting objects from toolchain libraries # # modification history # -------------------- # 01o,03jun03,sn cleaned up GCC 3.x support # 01n,07apr03,dtr Adding gnu version specific rules. # 01m,03dec01,sn allow configlette rules to be used seperately from TOOL_LIB # extraction rules # 01l,13nov01,sn include defs.exclude # 01k,07nov01,tam removed LIBDIR & lib rule # 01j,06nov01,sn prefix object file names to prevent clashes with VxWorks objects # 01i,15oct01,sn moved GNU specific material to tool/defs.gnu # 01h,24jan01,sn append a "marker symbol" to each module # 01h,18jan01,mem Strip debug info from MIPS objects to work around VxGDB # issue. # 01g,15nov99,sn wrote # # DESCRIPTION # Generic rules for extracting objects from toolchain libraries. # Subdirectory Makefiles for specific toolchains should # set TOOL_LIBS and include this file. # GEN_CONFIG = wtxtcl $(TGT_DIR)/src/tool/genConfig.tcl OBJS_EXCLUDE = wtxtcl $(TGT_DIR)/src/tool/objsExclude.tcl include $(TGT_DIR)/src/tool/$(TOOL_FAMILY)/defs.exclude # Compute PRE_OBJS (all objects except $(CONFIGLETTE_O)) ifneq ($(TOOL_LIB),) ifeq ($(PRE_OBJS),) ifeq ($(REAL_OBJS),) REAL_OBJS := $(shell $(AR) t $(TOOL_LIB) | $(OBJS_EXCLUDE) $(EXCLUDE_OBJS)) endif # REAL_OBJS undefined # We prefix each object file coming out of a toolchain library # with OBJ_PREFIX; the hope is that this will avoid clashes # with object files in the VxWorks library. PRE_OBJS := $(patsubst %,$(OBJ_PREFIX)%,$(REAL_OBJS)) $(EXTRA_OBJS) endif # PRE_OBJS undefined endif # TOOL_LIB defined ifneq ($(CONFIGLETTE_NAME),) CONFIGLETTE_O = __$(CONFIGLETTE_NAME).o CONFIGLETTE_C = $(LIBDIR)/__$(CONFIGLETTE_NAME).c endif OBJS = $(PRE_OBJS) $(CONFIGLETTE_O) # rules.library only looks in the current directory for # source files when it determines the objects we can build. # In our case the objects have already been built in the # GNU build tree (in libgcc.a) and we just want to pull them out. PRE_LIBOBJS = $(foreach file, $(PRE_OBJS), $(LIBDIR)/$(file)) LIBOBJS = $(foreach file, $(OBJS), $(LIBDIR)/$(file)) # On windows there needs to be a target called $(file)_clean for each file # in $(LIBOBJS). ifeq ($(WIND_HOST_TYPE),x86-win32) clean : $(foreach file,$(subst /,$(DIRCHAR),$(LIBOBJS) $(LOCAL_CLEAN)),$(file)_clean) $(foreach file,$(subst /,$(DIRCHAR),$(LIBOBJS) $(LOCAL_CLEAN)),$(file)_clean): $(RM) $(subst _clean,,$@) endif # Repeat the work of rules.library with the correct object list objs : $(LIBOBJS) Makefile $(subst /,$(DIRCHAR),$(TGT_DIR)/lib/$(LIBNAME)) : $(LIBOBJS) ifeq ($(WIND_HOST_TYPE),x86-win32) SEMI=; else SEMI=";" endif WRAPPER=$(LIBDIR)/_tmp_wrapper.c TMP_OBJ=$(LIBDIR)/_tmp_obj.o ifneq ($(TOOL_LIB),) $(LIBDIR)/%.o : $(TOOL_LIB) Makefile @echo Wrapping $@ ... $(RM) $(subst /,$(DIRCHAR),$@) # This just adds a symbol __object_o to object.o. We chose # to use a one-line C fragment rather than using the linker # to directly add a symbol because this way we don't have # to worry about whether or not the compiler prepends an underscore. echo char __$(subst +,_,$(subst -,_,$(notdir $*)))_o = 0$(SEMI) > $(WRAPPER) ifeq ($(WIND_HOST_TYPE),x86-win32) (cd $(LIBDIR) & $(AR) -x $(TOOL_LIB) $(patsubst $(OBJ_PREFIX)%,%,$(notdir $@)) & move $(patsubst $(OBJ_PREFIX)%,%,$(notdir $@)) $(notdir $@)) else (cd $(LIBDIR) ; \ $(AR) -x $(TOOL_LIB) $(patsubst $(OBJ_PREFIX)%,%,$(notdir $@)) ; \ mv $(patsubst $(OBJ_PREFIX)%,%,$(notdir $@)) $@) endif $(CC) -c $(CFLAGS) $(WRAPPER) -o $(TMP_OBJ) $(LD) $(LD_PARTIAL_FLAGS) -r $(TMP_OBJ) $@ -o $@_tmp $(CP) $(subst /,$(DIRCHAR),$@_tmp) $(subst /,$(DIRCHAR),$@) $(RM) $(WRAPPER) $(TMP_OBJ) $@_tmp endif # $(TOOL_LIB) defined ifneq ($(CONFIGLETTE_O),) $(LIBDIR)/$(CONFIGLETTE_O) : $(PRE_LIBOBJS) $(GEN_CONFIG) $(CONFIGLETTE_NAME) $(PRE_OBJS) > $(CONFIGLETTE_C) $(CC) -c $(CFLAGS) $(CONFIGLETTE_C) -o $@ $(RM) $(CONFIGLETTE_C) endif
