first commit

2026-09-30 21:17:41 -06:00
commit 07244fc761
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+##############################################################################
+#	Copyright:		Copyright CODESYS Development GmbH
+#	Program:		Extension API for the Linux SL products
+##############################################################################
+
+ifeq ($(dir $(lastword $(MAKEFILE_LIST))), ./)
+#
+# MAKEFILE is used wrong! Never call it from this folder directly
+#
+.PHONY:help
+help:
+	@echo "**********************"	
+	@echo "Dont work inside this folder! Please go to your library folder and call this makefile e.g.:"
+	@echo "make -f ../sdk/makefile newproject"
+	@echo 
+	@echo "**********************"	
+
+.PHONY:all
+all: help
+
+.PHONY:newproject
+newproject: help
+
+.PHONY:makefile
+makefile: help
+
+else
+#
+# NORMAL RULES
+#
+
+# get some info from generated files
+ITFM4 = $(wildcard *Itf.m4)
+CSRC = $(wildcard *.c)
+CMPBASENAME=$(CSRC:.c=)
+
+# set some variables
+OUTDIR=./out
+ITF = $(basename ${ITFM4})
+TEMPLATEDEP = $(SDKDIR)/m4/TemplateDep.m4
+DEP = ${CMPBASENAME}Dep
+
+
+# set name of shared object
+SONAME= lib${CMPBASENAME}.so
+
+# set sources of component
+SRC += ${CSRC} CmpFrame.c
+
+# objects: all sources
+OBJS = $(addprefix ${OUTDIR}/,$(SRC:.c=.o))
+
+# set default includes
+INCLUDES += -I${SDKDIR}/include/ -I${OUTDIR}/ -I.
+CFLAGS += -fPIC -g -O0 -Wall -Wextra -Wno-unused
+CFLAGS += -DDEP_H=\"${DEP}.h\"
+
+# set a vendorID
+CMPVENDORID=0xFFFF
+
+vpath %.m4 ${SDKDIR}/cmpstub/
+vpath %.c  ${SDKDIR}/src/
+
+.PHONY:help
+help:
+	@echo "**********************"	
+	@echo "help / usage / available make targets:"
+	@echo "-all        : just do everything needed"
+	@echo "-clean      : cleanup all generated files"
+	@echo "-newproject : create a new project"
+	@echo "-showenv    : show intern variables (for debugging)"
+	@echo "**********************"
+
+
+.PHONY:newproject
+newproject: makefile
+
+.PHONY:all
+all: ${OUTDIR}/$(SONAME)
+
+SDK_BASE=$(dir $(lastword $(MAKEFILE_LIST)))
+
+.PHONY:showenv
+showenv:
+	@echo "**********************"	
+	@echo "ITFM4:         ${ITFM4}"
+	@echo "CSRC:          ${CSRC}"	
+	@echo "SONAME:        ${SONAME}"
+	@echo "ITF:           ${ITF}"
+	@echo "DEP:           ${DEP}"
+	@echo "OBJS:          ${OBJS}"
+	@echo "CC:            $(CC)"
+	@echo "CFLAGS:        ${CFLAGS}"
+	@echo "SDKDIR:        ${SDKDIR}"
+	@echo "CMPBASENAME:   ${CMPBASENAME}"
+	@echo "MAKEFILE_LIST: $(MAKEFILE_LIST)"
+	@echo "**********************"
+	@echo ""
+
+# check if there are whitespaces in the SDK BASE DIR
+# this causes horrible things in make, so we detect/avoid it directly at creating a new project
+ifeq (1,$(words $(MAKEFILE_LIST)))
+makefile:
+	@echo "**********************"
+	@echo "creating makefile for your project "
+	cp ${SDK_BASE}/makefile_template $@
+	@echo "# include of the SDK makefiles" >>  $@
+	@echo "SDKDIR="$(abspath ${SDK_BASE}) >>  $@
+	@echo 'include $${SDKDIR}/makefile' >>  $@
+	@echo "" >>  $@
+	@echo "now check your makefile here"
+	@echo "**********************"
+	@echo ""
+
+else
+makefile:
+	@echo "**********************"
+	@echo "creating makefile for your project FAILED:"
+	@echo "there are whitespaces in the SDK path"
+	@echo "this does not work with 'make'!"	
+	@echo "Please put your SDK to a path without whitespaces"
+	@echo "**********************"
+	@echo ""
+	
+endif
+
+${OUTDIR}/%.o: %.c
+	@echo "**********************"
+	@echo "compile: $@ from $<"
+	@mkdir -p ${OUTDIR}
+	$(CC)  -c $(CFLAGS) $(INCLUDES) -o $@  $<
+	@echo "**********************"
+	@echo ""
+
+${OUTDIR}/${SONAME}: ${OUTDIR}/$(DEP).h ${OUTDIR}/$(ITF).h $(OBJS)
+	@echo "**********************"
+	@echo "link: $@"
+	@mkdir -p ${OUTDIR}
+	$(CC)  $(LDFLAGS) -shared $(OBJS) -Wl,-soname,$(SONAME) -o $@ $(LDLIBS)
+	@echo "**********************"
+	@echo ""
+
+${OUTDIR}/$(DEP).m4:
+	@echo "**********************"
+	@echo "create $@ from template"
+	@mkdir -p ${OUTDIR}
+	echo 'SET_COMPONENT_NAME(`'${CMPBASENAME}"')" > $@
+	echo 'COMPONENT_VERSION(`'${CMPVERSION}"')" >> $@
+	echo 'COMPONENT_VENDORID(`'${CMPVENDORID}"')" >> $@
+	echo "#define CMPID_${CMPBASENAME}		${CMPID}" >> $@
+	echo "IMPLEMENT_ITF("'`'"${CMPBASENAME}Itf.m4')" >> $@	
+	@echo "**********************"
+	@echo ""
+
+${OUTDIR}/$(DEP).h: ${OUTDIR}/$(DEP).m4 $(ITF).m4
+	@echo "**********************"
+	@echo "build dependency header: $@ from $<"	
+	@mkdir -p ${OUTDIR}
+	$(DOS2UNIX) $<
+	$(M4) -I$(SDKDIR)/m4 -I. Implementation.m4 - < $< > $@
+	@echo "**********************"
+	@echo ""
+
+${OUTDIR}/$(ITF).h: $(ITF).m4
+	@echo "**********************"
+	@echo "build interface header: $@ from $<"
+	@sed -n '/DEF_API/ !d; /_cext/ ! { s/^/ERROR: This functionname does not contain _cext (this is mandatory, see help for details):\n/p;q 1}' $<
+	@mkdir -p ${OUTDIR}
+	$(DOS2UNIX) $<
+	$(M4) -I$(SDKDIR)/m4 Exports.m4 - < $< > $@
+	@echo "**********************"
+	@echo ""
+
+.PHONY:clean
+clean:
+	@echo ""
+	@echo "**********************"
+	@echo "clean up"
+	rm -rf ${OUTDIR};
+	@echo "**********************"
+	@echo ""
+
+endif