Makefile-np

# This work is licensed under TURNSTONE OS Public License.
# Please read and understand latest version of Licence.

HOSTOS =$(shell uname -s)

MAKE = make

ifeq ($(HOSTOS),Darwin)

CC64 = x86_64-elf-gcc
OBJCOPY = x86_64-elf-objcopy

SEDNOBAK = sed -i ''

else

CC64 = gcc
OBJCOPY = objcopy

SEDNOBAK = sed -i

endif

DOCSGEN = doxygen
DOCSFILES = $(shell find . -type f -name \*.md)
DOCSCONF = docs.doxygen
INCLUDESDIR = includes

CCXXFLAGS += -std=gnu11 -O2 -nostdlib -nostdinc -ffreestanding -fno-builtin -c -I$(INCLUDESDIR) \
	-Werror -Wall -Wextra -ffunction-sections -fdata-sections \
	-mno-red-zone -fstack-protector-all -fno-omit-frame-pointer \
	-Wshadow -Wpointer-arith -Wcast-align \
	-Wwrite-strings -Wmissing-prototypes -Wmissing-declarations \
    -Wredundant-decls -Wnested-externs -Winline -Wno-long-long \
    -Wstrict-prototypes \
	-fPIC -fplt -mcmodel=large -fno-ident -fno-asynchronous-unwind-tables ${CCXXEXTRAFLAGS}

CXXTESTFLAGS= -D___TESTMODE=1

CC64FLAGS    = -m64 -march=x86-64 -D___BITS=64 -msse4.2 $(CCXXFLAGS)
CC64INTFLAGS = -m64 -march=x86-64 -mgeneral-regs-only -D___BITS=64 $(CCXXFLAGS)

OBJDIR = output
ASOBJDIR = $(OBJDIR)/asm
CCOBJDIR = $(OBJDIR)/cc
DOCSOBJDIR = $(OBJDIR)/docs
ASSRCDIR = asm
CCSRCDIR = cc
LDSRCDIR = lds
CCGENDIR = cc-gen
INCLUDESGENDIR = includes-gen
CCGENSCRIPTSDIR = scripts/gen-cc
TMPDIR = tmp

CCGENSCRIPTS = $(shell find $(CCGENSCRIPTSDIR) -type f -name \*.sh)
GENCCSRCS = $(patsubst $(CCGENSCRIPTSDIR)/%.sh,$(CCGENDIR)/%.c,$(CCGENSCRIPTS))
GENCC64OBJS = $(patsubst $(CCGENSCRIPTSDIR)/%.sh,$(CCOBJDIR)/%.cc-gen.x86_64.o,$(CCGENSCRIPTS))
GENCC64ASMOUTS = $(patsubst $(CCGENSCRIPTSDIR)/%.sh,$(CCOBJDIR)/%.cc-gen.x86_64.s,$(CCGENSCRIPTS))

.NOTPARALLEL:

all: $(GENCC64OBJS)

asm: $(GENCC64ASMOUTS)

clean:
	rm -fr $(CCGENDIR)/*
	rm -f $(GENCC64OBJS)

$(CCGENDIR)/%.c: $(CCGENSCRIPTSDIR)/%.sh
	if [[ ! -f $@ ]]; then $^ > $@; else $^ > $@.tmp; diff $@  $@.tmp  2>/dev/null && rm -f $@.tmp || mv $@.tmp $@; fi

$(CCOBJDIR)/%.cc-gen.x86_64.o: $(CCGENDIR)/%.c
	$(CC64) $(CC64FLAGS) -o $@ $<

$(CCOBJDIR)/interrupt_handlers.cc-gen.x86_64.o: $(CCGENDIR)/interrupt_handlers.c
	$(CC64) $(CC64INTFLAGS) -o $@ $<
	
$(CCOBJDIR)/%.cc-gen.x86_64.s: $(CCGENDIR)/%.c
	$(CC64) $(CC64FLAGS) -S -o $@ $<

$(CCOBJDIR)/interrupt_handlers.cc-gen.x86_64.s: $(CCGENDIR)/interrupt_handlers.c
	$(CC64) $(CC64INTFLAGS) -S -o $@ $<

print-%: ; @echo $* = $($*)