CC = gcc

CFLAGS = -c -O2 -fomit-frame-pointer
LDFLAGS = -nostdlib -shared -s -T libcdll.lds --out-implib libcimp.a --image-base 0

LIBC_TOPDIR   = .
LIBC_INCLUDES = $(LIBC_TOPDIR)/include

NAME:=	  libc

DEFINES:= -D_IEEE_LIBM

INCLUDES:=  -I $(LIBC_INCLUDES)

AMZ_SRCS:= 			 		\
         		crt/crt_amz.S        	\
         		crt/chkstk.S         	\
         		crt/exit.S           	\
			crt/pseudo-reloc.c	\
			crt/dllstart.c 		\
			crt/setjmp.S

STATIC_SRCS:=					\
         		crt/start.S		\
         		crt/crt1.c		\
			crt/crt2.c		\
         		crt/chkstk.S		\
         		crt/exit.S		\
			pe/crtloader.c

DLL_SRCS:=					\
			crt/crtdll.c		\
			crt/chkstk.S		\
			crt/exit.S


LIBCDLL_SRCS:=					\
			crt/crtdll.c		\
			crt/pseudo-reloc.c	\
			crt/chkstk.S		\
			crt/exit.S		\
			pe/loader.c

LIBCRT_SRCS:=					\
			crt/start.S		\
			crt/chkstk.S		\
			crt/crt3.c		\
			pe/crtloader.c

CORE_SRCS:=                   			\
			argz/buf_findstr.c	\
			argz/envz_get.c		\
         		crt/emutls.c         	\
         		crt/thread.S         	\
         		crt/tls.S            	\
			crt/setjmp.S		\
         		crt/assert.c         	\
			crt/cpu_features.c	\
			ctype/ctype_.c 		\
			ctype/isascii.c		\
			ctype/isblank.c		\
         		ctype/isalnum.c      	\
         		ctype/isalpha.c      	\
         		ctype/iscntrl.c      	\
         		ctype/isdigit.c      	\
         		ctype/islower.c      	\
			ctype/isupper.c      	\
         		ctype/isprint.c      	\
         		ctype/ispunct.c      	\
         		ctype/isspace.c      	\
         		ctype/iswctype.c     	\
         		ctype/iswalnum.c     	\
         		ctype/iswalpha.c     	\
         		ctype/iswblank.c     	\
         		ctype/iswcntrl.c     	\
         		ctype/iswdigit.c     	\
         		ctype/iswgraph.c     	\
         		ctype/iswlower.c     	\
         		ctype/iswprint.c     	\
         		ctype/iswpunct.c     	\
         		ctype/iswspace.c     	\
         		ctype/iswupper.c     	\
         		ctype/iswxdigit.c    	\
         		ctype/isxdigit.c     	\
			ctype/toascii.c		\
         		ctype/tolower.c      	\
			ctype/toupper.c		\
         		ctype/towctrans.c    	\
         		ctype/towlower.c     	\
         		ctype/towupper.c     	\
			ctype/wctrans.c		\
         		ctype/wctype.c       	\
         		errno/errno.c        	\
			locale/locale.c		\
			locale/lctype.c		\
         		reent/impure.c       	\
			reent/init_reent.c	\
	         	reent/getreent.c     	\
			reent/mutex.c		\
			reent/gettimeofdayr.c	\
         		reent/hdlman.c       	\
			reent/isattyr.c		\
         		reent/openr.c        	\
         		reent/closer.c       	\
         		reent/readr.c        	\
         		reent/lseekr.c       	\
         		reent/fstatr.c       	\
         		reent/writer.c       	\
         		search/qsort.c       	\
         		search/bsearch.c     	\
			signal/signal.c		\
         		sys/create.c         	\
         		sys/delete.c         	\
         		sys/finfo.c          	\
         		sys/read.c           	\
         		sys/write.c          	\
         		sys/fsize.c          	\
         		time/asctime.c       	\
         		time/asctime_r.c     	\
         		time/clock.c         	\
         		time/ctime.c         	\
         		time/ctime_r.c       	\
			time/difftime.c		\
         		time/gettzinfo.c     	\
         		time/gmtime.c        	\
			time/gmtime_r.c		\
         		time/mktime.c        	\
         		time/mktm_r.c        	\
         		time/lcltime.c       	\
         		time/lcltime_r.c     	\
			time/strftime.c		\
         		time/time.c          	\
         		time/tzlock.c        	\
         		time/tzvars.c        	\
			unpack/unpacker.asm


STDLIB_SRCS=                 			\
         		__atexit.c          	\
         		__call_atexit.c     	\
         		abort.c              	\
         		abs.c               	\
         		atof.c              	\
         		atoi.c              	\
			atol.c			\
         		div.c               	\
         		dtoa.c               	\
         		dtoastub.c          	\
         		exit.c              	\
         		gdtoa-gethex.c      	\
         		gdtoa-hexnan.c       	\
         		getenv.c             	\
         		mprec.c              	\
         		mbtowc.c             	\
         		mbtowc_r.c           	\
         		mbrtowc.c           	\
         		mlock.c              	\
         		calloc.c             	\
         		malloc.c             	\
        		mallocr.c           	\
        		 rand.c               	\
         		rand_r.c            	\
         		rand48.c            	\
         		realloc.c            	\
         		seed48.c             	\
         		srand48.c            	\
         		strtod.c            	\
         		strtol.c             	\
         		strtold.c            	\
         		strtoll.c            	\
         		strtoll_r.c         	\
         		strtoul.c            	\
         		strtoull.c           	\
         		strtoull_r.c        	\
         		system.c            	\
         		wcrtomb.c           	\
			wctomb_r.c


STRING_SRCS=      	memcpy.c    \
         		memcmp.c             \
         		memmove.c            \
         		memset.c             \
         		memchr.c             \
         		strcat.c             \
         		strchr.c             \
         		strcmp.c             \
         		strcoll.c            \
         		strcasecmp.c         \
         		strncasecmp.c        \
         		strncat.c            \
         		strncmp.c            \
         		strncpy.c            \
         		strndup.c            \
         		strndup_r.c          \
         		strnlen.c            \
         		strcasestr.c         \
         		strdup.c             \
         		strdup_r.c           \
         		strerror.c           \
         		strlen.c             \
         		strrchr.c            \
         		strpbrk.c            \
         		strsep.c             \
         		strstr.c             \
         		strtok.c             \
         		strtok_r.c           \
         		strupr.c             \
         		strcspn.c            \
         		strspn.c             \
         		strcpy.c             \
			u_strerr.c

STDIO_SRCS=					\
			clearerr.c		\
			diprintf.c		\
			dprintf.c		\
			printf.c		\
			putchar.c		\
			fgetc.c			\
			fgets.c			\
			fopen.c			\
			fclose.c		\
			fdopen.c		\
			fflush.c		\
			flags.c			\
			fileno.c		\
			findfp.c		\
			fiprintf.c		\
			fiscanf.c		\
			fprintf.c		\
			fputc.c			\
			fputs.c			\
			fputwc.c		\
			fread.c			\
			freopen.c		\
			fscanf.c		\
			fseek.c			\
			fseeko.c		\
			ftell.c			\
			ftello.c		\
			fwrite.c		\
			fvwrite.c		\
			fwalk.c			\
			putc.c			\
			puts.c			\
			refill.c		\
			rget.c			\
			remove.c		\
			rename.c		\
			setvbuf.c		\
			stdio.c			\
			tmpfile.c		\
			tmpnam.c		\
			ungetc.c		\
			vasniprintf.c		\
			vasnprintf.c		\
			vdprintf.c		\
			vdiprintf.c		\
			vscanf.c		\
			vsprintf.c		\
			vsnprintf.c		\
			vsscanf.c		\
			makebuf.c		\
			wsetup.c		\
			wbuf.c			\
			sccl.c			\
			siprintf.c		\
			sniprintf.c		\
			snprintf.c		\
			sprintf.c		\
			sscanf.c


MATH_SRCS = 	e_acos.c e_acosh.c e_asin.c e_atan2.c e_atanh.c e_cosh.c e_exp.c e_fmod.c	\
		e_hypot.c e_j0.c e_j1.c e_jn.c e_log.c e_log10.c e_pow.c e_rem_pio2.c 		\
		e_remainder.c e_scalb.c e_sinh.c e_sqrt.c ef_acos.c ef_acosh.c ef_asin.c	\
		ef_atan2.c ef_atanh.c ef_cosh.c ef_exp.c ef_fmod.c ef_hypot.c ef_j0.c ef_j1.c	\
		ef_jn.c ef_log.c ef_log10.c ef_pow.c ef_rem_pio2.c ef_remainder.c ef_scalb.c	\
		ef_sinh.c ef_sqrt.c er_gamma.c er_lgamma.c erf_gamma.c erf_lgamma.c f_exp.c	\
		f_expf.c f_llrint.c f_llrintf.c f_llrintl.c f_lrint.c f_lrintf.c f_lrintl.c	\
		f_pow.c f_powf.c f_rint.c f_rintf.c f_rintl.c k_cos.c k_rem_pio2.c k_sin.c	\
		k_standard.c k_tan.c kf_cos.c kf_rem_pio2.c kf_sin.c kf_tan.c s_asinh.c 	\
		s_atan.c s_cbrt.c s_ceil.c s_copysign.c s_cos.c s_erf.c s_exp10.c s_expm1.c	\
		s_fabs.c s_fdim.c s_finite.c s_floor.c s_fma.c s_fmax.c s_fmin.c s_fpclassify.c	\
		s_frexp.c s_ilogb.c s_infconst.c s_infinity.c s_isinf.c s_isinfd.c s_isnan.c	\
		s_isnand.c s_ldexp.c s_lib_ver.c s_llrint.c s_llround.c s_log1p.c s_log2.c	\
		s_logb.c s_lrint.c s_lround.c s_matherr.c s_modf.c s_nan.c s_nearbyint.c	\
		s_nextafter.c s_pow10.c s_remquo.c s_rint.c s_round.c s_scalbln.c s_scalbn.c	\
		s_signbit.c s_signif.c s_sin.c s_tan.c s_tanh.c s_trunc.c scalblnl.c scalbnl.c	\
		sf_asinh.c sf_atan.c sf_cbrt.c sf_ceil.c sf_copysign.c sf_cos.c sf_erf.c 	\
		sf_exp10.c sf_expm1.c sf_fabs.c sf_fdim.c sf_finite.c sf_floor.c sf_fma.c	\
		sf_fmax.c sf_fmin.c sf_fpclassify.c sf_frexp.c sf_ilogb.c sf_infinity.c		\
		sf_isinf.c sf_isinff.c sf_isnan.c sf_isnanf.c sf_ldexp.c sf_llrint.c		\
		sf_llround.c sf_log1p.c sf_log2.c sf_logb.c sf_lrint.c sf_lround.c sf_modf.c	\
		sf_nan.c sf_nearbyint.c sf_nextafter.c sf_pow10.c sf_remquo.c sf_rint.c		\
		sf_round.c sf_scalbln.c sf_scalbn.c sf_signif.c sf_sin.c sf_tan.c sf_tanh.c	\
		sf_trunc.c w_acos.c w_acosh.c w_asin.c w_atan2.c w_atanh.c w_cosh.c w_drem.c	\
		w_exp.c w_exp2.c w_fmod.c w_gamma.c w_hypot.c w_j0.c w_j1.c w_jn.c w_lgamma.c	\
		w_log.c w_log10.c w_pow.c w_remainder.c w_scalb.c w_sincos.c w_sinh.c w_sqrt.c	\
		w_tgamma.c wf_acos.c wf_acosh.c wf_asin.c wf_atan2.c wf_atanh.c wf_cosh.c	\
		wf_drem.c wf_exp.c wf_exp2.c wf_fmod.c wf_gamma.c wf_hypot.c wf_j0.c wf_j1.c	\
		wf_jn.c wf_lgamma.c wf_log.c wf_log10.c wf_pow.c wf_remainder.c wf_scalb.c	\
		wf_sincos.c wf_sinh.c wf_sqrt.c wf_tgamma.c wr_gamma.c wr_lgamma.c wrf_gamma.c	\
		wrf_lgamma.c	\
		f_atan2.S f_atan2f.S f_frexp.S f_frexpf.S f_ldexp.S f_ldexpf.S f_log.S		\
		f_log10.S f_log10f.S f_logf.S f_tan.S f_tanf.S


AMZ_OBJS =  $(patsubst %.S, %.o, $(patsubst %.c, %.o, $(AMZ_SRCS)))

STATIC_OBJS =  $(patsubst %.S, %.o, $(patsubst %.c, %.o, $(STATIC_SRCS)))

LIBCRT_OBJS =  $(patsubst %.S, %.o, $(patsubst %.c, %.o, $(LIBCRT_SRCS)))

DLL_OBJS =  $(patsubst %.S, %.o, $(patsubst %.c, %.o, $(DLL_SRCS)))

LIBCDLL_OBJS =  $(patsubst %.S, %.o, $(patsubst %.c, %.o, $(LIBCDLL_SRCS)))

CORE_OBJS =  $(patsubst %.S, %.o, $(patsubst %.asm, %.obj,\
            $(patsubst %.c, %.o, $(CORE_SRCS))))

STDIO_OBJS =  $(patsubst %.c, stdio/%.o,$(STDIO_SRCS))


STRING_OBJS =  $(patsubst %.S, string/%.o, $(patsubst %.asm, string/%.o,\
               $(patsubst %.c, string/%.o, $(STRING_SRCS))))

STDLIB_OBJS =  $(patsubst %.S, stdlib/%.o, $(patsubst %.asm, stdlib/%.o,\
               $(patsubst %.c, stdlib/%.o, $(STDLIB_SRCS))))


MATH_OBJS =  $(patsubst %.S, math/%.o, $(patsubst %.asm, math/%.o,\
               $(patsubst %.c, math/%.o, $(MATH_SRCS))))


PRINTF_OBJS= 	stdio/vfprintf.o	\
		stdio/vfiprintf.o	\
		stdio/svfprintf.o	\
		stdio/svfiprintf.o	\
		stdio/vfscanf.o		\
		stdio/vfiscanf.o	\
		stdio/svscanf.o		\
		stdio/svfiscanf.o

ifeq ($(findstring static,$(MAKECMDGOALS)),static)

LIB_SRCS:=  	$(STATIC_SRCS)
LIB_OBJS:=  	$(STATIC_OBJS)

else

LIB_SRCS:=  	$(LIBCDLL_SRCS)
LIB_OBJS:=  	$(LIBCDLL_OBJS)

endif

LIB_SRCS+=				\
		$(CORE_SRCS)		\
		$(STDIO_SRCS) 		\
		$(STRING_SRCS)		\
		$(STDLIB_SRCS)

LIB_OBJS+=				\
		$(CORE_OBJS) 		\
		$(STRING_OBJS) 		\
		$(STDLIB_OBJS)		\
		$(STDIO_OBJS) 		\
		$(PRINTF_OBJS) 		\
		$(MATH_OBJS)



shared: $(NAME).dll libcrt.a 


$(NAME).dll: $(LIB_OBJS) $(SRC_DEP) Makefile
	ld $(LDFLAGS) -L. -o $@ $(LIB_OBJS) -lgcc


libcrt.a: $(LIBCRT_OBJS) Makefile
	ar rc libcrt.a $(LIBCRT_OBJS)

libamz.a: $(AMZ_OBJS) Makefile
	ar rc libamz.a $(AMZ_OBJS)

libc.obj: $(NAME).dll
	fasm pe/libc.asm ./libc.obj


static: $(NAME).a

$(NAME).a: $(LIB_OBJS) $(SRC_DEP) Makefile
	ar rc $(NAME).a $(LIB_OBJS)



stdio/vfprintf.o: stdio/vfprintf.c
	$(CC) $(CFLAGS) $(DEFINES) $(INCLUDES) -fshort-enums -DFLOATING_POINT -c stdio/vfprintf.c -o $@

stdio/vfiprintf.o: stdio/vfprintf.c
	$(CC) $(CFLAGS) $(DEFINES) $(INCLUDES) -fshort-enums -DINTEGER_ONLY -c stdio/vfprintf.c -o $@

stdio/svfprintf.o: stdio/vfprintf.c
	$(CC) $(CFLAGS) $(DEFINES) $(INCLUDES) -fshort-enums -DSTRING_ONLY -c stdio/vfprintf.c -o $@

stdio/svfiprintf.o: stdio/vfprintf.c
	$(CC) $(CFLAGS) $(DEFINES) $(INCLUDES) -fshort-enums -DINTEGER_ONLY -DSTRING_ONLY -c stdio/vfprintf.c -o $@


stdio/vfscanf.o: stdio/vfscanf.c
	$(CC) $(CFLAGS) $(DEFINES) $(INCLUDES)	stdio/vfscanf.c -o $@

stdio/vfiscanf.o: stdio/vfscanf.c
	$(CC) $(CFLAGS) $(DEFINES) -DINTEGER_ONLY $(INCLUDES) stdio/vfscanf.c -o $@

stdio/svscanf.o: stdio/vfscanf.c
	$(CC) $(CFLAGS) $(DEFINES) -DSTRING_ONLY $(INCLUDES) stdio/vfscanf.c -o $@


stdio/svfiscanf.o: stdio/vfscanf.c
	$(CC) $(CFLAGS) $(DEFINES) -DINTEGER_ONLY -DSTRING_ONLY $(INCLUDES) stdio/vfscanf.c -o $@



%.obj : %.asm Makefile
	fasm $< $

%.o : %.c Makefile
	$(CC) $(CFLAGS) $(DEFINES) $(INCLUDES) -o $@ $<


clean:
	-rm -f */*.o