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# common.mk - common make rules to build Prex

#

# This file includes the common rules to make Prex source tree.

# The files are installed in /mk, and are, by convention,

# named with the suffix ".mk".

#

# Supported environment variables:

#

#  SRCDIR          ... Root directory of source tree

#  NDEBUG          ... Force disable debug switch (default: 0)

#  LIBGCC_PATH     ... Path for libgcc.a (optional)

#

# Variables in local Makefile:

#

#  TARGET          ... Target file name

#  SUBDIR,SUBDIR-y ... List of subdirectories

#  SRCS,SRCS-y     ... Source files

#  OBJS,OBJS-y     ... Object files

#  LIBS            ... Libraries

#  INCSDIR         ... Include path

#  LIBSDIR         ... Library path

#  DEFS            ... Definition to pass to the compiler

#  MAP             ... Name of map file

#  DISASM          ... Name of disassemble file

#  SYMBOL          ... Name of symbol file

#

ifndef _COMMON_MK_

_COMMON_MK_:=	1

ifdef _GNUC_

include $(SRCDIR)/mk/gcc.mk

endif

ifdef _PCC_

include $(SRCDIR)/mk/pcc.mk

endif

ifdef _SUNPRO_C_

include $(SRCDIR)/mk/suncc.mk

endif

ifdef DISASM

ASMGEN=		$(OBJDUMP) $@ --disassemble-all > $(DISASM)

endif

ifdef SYMBOL

SYMGEN=		cp $@ $(SYMBOL)

endif

SUBDIR+=	$(SUBDIR-y)

OBJS+=		$(OBJS-y)

SRCS+=		$(SRCS-y)

ifeq ($(OBJS),)

OBJS+=		$(addsuffix .o,$(basename $(SRCS)))

endif

.SUFFIXES:

.SUFFIXES: .bin .a .o .S .c .cc .cpp .cxx .h

ifeq ($(_SILENT_),1)

echo-file=	@echo '  $(1) $(subst $(SRCDIR)/,,$(abspath $(2)))'

echo-files=	@(for d in $(2) _ ; do \

		  if [ "$$d" != "_" ]; then \

		    echo "  $(1) $(subst $(SRCDIR)/,,$(abspath $$d))" ; fi; \

		  done);

endif

#

# Inference rules

#

%.o: %.c

	$(call echo-file,CC     ,$<)

	$(CC) $(CFLAGS) $(CPPFLAGS) $(OUTPUT_OPTION) $<

%.o: %.S

	$(call echo-file,AS     ,$<)

	$(CPP) $(ACPPFLAGS) $(CPPFLAGS) $< $*.tmp

	$(AS) $(ASFLAGS) $(OUTPUT_OPTION) $*.tmp

	$(RM) $*.tmp

#

# Target

#

all: config $(SUBDIR) $(TARGET)

#

# Check configuration file

#

.PHONY: config

config:

ifndef ARCH

	@echo 'Error: You must run `configure` before make.'

	exit 1

endif

#

# Rules to process sub-directory

#

ifdef SUBDIR

.PHONY: $(SUBDIR)

$(SUBDIR): dummy

	@$(MAKE) -C $@

endif

-include Makefile.dep

#

# Depend

#

.PHONY: depend dep

depend dep:

ifdef SUBDIR

	@(for d in $(SUBDIR) _ ; do \

	  if [ "$$d" != "_" ]; then $(MAKE) -C $$d depend; fi; \

	done);

endif

	$(RM) Makefile.dep

	@(for d in $(SRCS) _ ; do \

	  if [ "$$d" != "_" ]; then \

	  $(CPP) -M $(CPPFLAGS) $$d >> Makefile.dep; fi; \

	done);

#

# Lint

#

.PHONY: lint

lint:

ifdef SUBDIR

	@(for d in $(SUBDIR) _ ; do \

	  if [ "$$d" != "_" ]; then $(MAKE) -C $$d lint; fi; \

	done);

endif

	@(for d in $(filter %.c, $(SRCS)) _ ; do \

	  if [ "$$d" != "_" ]; then \

	  echo ; \

	  echo "Checking $$d" ; \

	  $(LINT) $(CPPFLAGS) $(LINTFLAGS) $$d; fi; \

	done);

#

# Clean up

#

CLEANS= Makefile.dep $(TARGET) $(OBJS) $(DISASM) $(MAP) $(SYMBOL) $(CLEANFILES)

.PHONY: clean

clean:

ifdef SUBDIR

	@(for d in $(SUBDIR) _ ; do \

	  if [ "$$d" != "_" ]; then $(MAKE) -C $$d clean; fi; \

	done);

endif

	$(call echo-files,CLEAN  ,$(CLEANS))

	$(RM) $(CLEANS)

.PHONY: dummy

#

# Build OS image

#

.PHINY: image

image: config $(TARGET)

endif # !_COMMON_MK_