3 # Copyright (C) 2000-2008 Erik Andersen <andersen@uclibc.org>
5 # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
7 # The routines included in this math library are derived from the
8 # math library for Apple's MacOS X/Darwin math library, which was
9 # itself swiped from FreeBSD. The original copyright information
12 # Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
14 # Developed at SunPro, a Sun Microsystems, Inc. business.
15 # Permission to use, copy, modify, and distribute this
16 # software is freely granted, provided that this notice
19 # It has been ported to work with uClibc and generally behave
20 # by Erik Andersen <andersen@codepoet.org>
25 CFLAGS-libm
:= -DNOT_IN_libc
-DIS_IN_libm
$(SSP_ALL_CFLAGS
)
26 CFLAGS-libm
+= -D_IEEE_LIBM
28 LDFLAGS-libm.so
:= $(LDFLAGS
)
30 LIBS-libm.so
:= $(LIBS
)
32 libm_FULL_NAME
:= libm-
$(VERSION
).so
34 libm_DIR
:=$(top_srcdir
)libm
35 libm_OUT
:=$(top_builddir
)libm
37 # Fix builds for powerpc as there are different cores in this
39 ifeq ($(TARGET_ARCH
)-$(CONFIG_E500
),powerpc-y
)
40 libm_ARCH_DIR
:=$(libm_DIR
)/$(TARGET_ARCH
)/e500
41 libm_ARCH_OUT
:=$(libm_OUT
)/$(TARGET_ARCH
)/e500
43 libm_ARCH_DIR
:=$(libm_DIR
)/$(TARGET_ARCH
)
44 libm_ARCH_OUT
:=$(libm_OUT
)/$(TARGET_ARCH
)
47 ifeq ($(UCLIBC_HAS_FPU
),y
)
48 ifeq ($(DO_C99_MATH
),y
)
49 -include $(libm_ARCH_DIR
)/Makefile.arch
53 FL_MSRC
:= float_wrappers.c
54 LD_MSRC
:= ldouble_wrappers.c
56 ifeq ($(DO_C99_MATH
),y
)
58 e_acos.c e_acosh.c e_asin.c e_atan2.c e_atanh.c e_cosh.c \
59 e_exp.c e_fmod.c e_hypot.c \
60 e_lgamma_r.c e_log.c e_log2.c e_log10.c \
61 e_pow.c e_remainder.c e_rem_pio2.c e_scalb.c e_sinh.c \
62 e_sqrt.c k_cos.c k_rem_pio2.c k_sin.c k_standard.c k_tan.c \
63 s_asinh.c s_atan.c s_cbrt.c s_ceil.c s_copysign.c s_cos.c \
64 s_erf.c s_expm1.c s_fabs.c s_finite.c s_floor.c s_frexp.c \
65 s_ilogb.c s_ldexp.c s_lib_version.c s_lrint.c s_lround.c s_llround.c \
66 s_log1p.c s_logb.c s_matherr.c s_modf.c s_nextafter.c \
67 s_nextafterf.c s_round.c \
68 s_rint.c s_scalbn.c s_signgam.c s_significand.c s_sin.c s_tan.c \
71 nan.c carg.c s_llrint.c \
72 s_fpclassify.c s_fpclassifyf.c s_signbit.c s_signbitf.c \
73 s_isnan.c s_isnanf.c s_isinf.c s_isinff.c s_finitef.c \
74 s_fdim.c s_fma.c s_fmax.c s_fmin.c \
77 # Not implemented [yet?], see comment in float_wrappers.c:
78 # fdimf.o fmaf.o fmaxf.o fminf.o
79 # nearbyintf.o remquof.o scalblnf.o tgammaf.o
132 # Not implemented [yet?]: nexttowardl.o
200 # This list of math functions was taken from POSIX/IEEE 1003.1b-1993
202 s_atan.c s_ceil.c s_cos.c \
203 s_fabs.c s_floor.c s_frexp.c \
204 s_ldexp.c s_modf.c s_sin.c \
206 s_expm1.c s_scalbn.c s_copysign.c e_acos.c e_asin.c e_atan2.c \
207 k_cos.c e_cosh.c e_exp.c e_fmod.c e_log.c e_log10.c e_pow.c \
208 k_sin.c e_sinh.c e_sqrt.c k_tan.c e_rem_pio2.c k_rem_pio2.c \
210 # We'll add sqrtf to avoid problems with libstdc++
214 ifeq ($(DO_XSI_MATH
),y
)
215 libm_CSRC
+= e_j0.c e_j1.c e_jn.c
218 # assume that arch specific versions are provided as single sources/objects
219 ifeq ($(UCLIBC_HAS_FPU
),y
)
220 ifeq ($(DO_C99_MATH
),y
)
221 ifneq ($(strip $(libm_ARCH_OBJS
)),)
222 ifeq ($(TARGET_ARCH
)-$(CONFIG_E500
),powerpc-y
)
223 CFLAGS-libm
/$(TARGET_ARCH
)/e500
/ := $(CFLAGS-libm
)
225 CFLAGS-libm
/$(TARGET_ARCH
)/ := $(CFLAGS-libm
)
228 # remove generic sources, if arch specific version is present
229 ifneq ($(strip $(libm_ARCH_SRC
)),)
230 libm_CSRC
:= $(filter-out $(notdir $(libm_ARCH_SRC
)),$(libm_CSRC
))
233 # remove generic objects built from multi-sources, if arch specific version is present
234 FL_MOBJ
:= $(filter-out $(notdir $(libm_ARCH_OBJS
)),$(FL_MOBJ
))
235 LD_MOBJ
:= $(filter-out $(notdir $(libm_ARCH_OBJS
)),$(LD_MOBJ
))
237 # we also try to remove % if s_% is in arch specific subdir
238 FL_MOBJ
:= $(filter-out $(patsubst s_
%.o
,%.o
,$(notdir $(libm_ARCH_OBJS
))),$(FL_MOBJ
))
239 LD_MOBJ
:= $(filter-out $(patsubst s_
%.o
,%.o
,$(notdir $(libm_ARCH_OBJS
))),$(LD_MOBJ
))
244 libm_SRC
:= $(patsubst %.c
,$(libm_DIR
)/%.c
,$(libm_CSRC
))
245 libm_OBJ
:= $(patsubst $(libm_DIR
)/%.c
,$(libm_OUT
)/%.o
,$(libm_SRC
))
247 ifeq ($(strip $(UCLIBC_HAS_LONG_DOUBLE_MATH
)),y
)
248 libm_MSRC_LD
:= $(libm_DIR
)/$(LD_MSRC
)
249 libm_MOBJ_LD
:= $(patsubst %.o
,$(libm_OUT
)/%.o
,$(LD_MOBJ
))
251 libm_MSRC_FL
:= $(libm_DIR
)/$(FL_MSRC
)
252 libm_MOBJ_FL
:= $(patsubst %.o
,$(libm_OUT
)/%.o
,$(FL_MOBJ
))
256 CFLAGS-libm
+= $(patsubst %,-DL_
%,$(subst .o
,,$(notdir $(libm_MOBJ_FL
))))
257 ifeq ($(strip $(UCLIBC_HAS_LONG_DOUBLE_MATH
)),y
)
258 CFLAGS-libm
+= $(patsubst %,-DL_
%,$(subst .o
,,$(notdir $(libm_MOBJ_LD
))))
262 libm_OBJS
:= $(libm_OBJ
) $(libm_MOBJ_FL
) $(libm_MOBJ_LD
)
265 libm-a-y
+= $(libm_OBJS
:.o
=.os
)
267 libm-a-y
+= $(libm_OBJS
)
269 libm-so-y
+= $(libm_OBJS
:.o
=.os
)
271 lib-a-
$(UCLIBC_HAS_FLOATS
) += $(top_builddir
)lib
/libm.a
272 lib-so-
$(UCLIBC_HAS_FLOATS
) += $(top_builddir
)lib
/libm.so
273 objclean-y
+= libm_clean
277 $(top_builddir
)lib
/libm.so
: $(top_builddir
)lib
/libm.a
$(libc.depend
)
279 $(top_builddir
)lib
/libm.so
: $(libm_OUT
)/libm_so.a
$(libc.depend
)
281 $(call link.so
,$(libm_FULL_NAME
),$(MAJOR_VERSION
))
283 $(top_builddir
)lib
/libm.so
: $(libm_OUT
)/libm.oS |
$(libc.depend
)
284 $(call linkm.so
,$(libm_FULL_NAME
),$(MAJOR_VERSION
))
287 $(libm_OUT
)/libm_so.a
: $(libm-so-y
)
291 $(libm_OUT
)/libm.oS
: $(libm_SRC
) $(libm_MSRC_FL
) $(libm_MSRC_LD
) $(libm_ARCH_SRC
)
295 $(top_builddir
)lib
/libm.a
: $(libm-a-y
)
296 $(Q
)$(INSTALL
) -d
$(dir $@
)
300 $(libm_MOBJ_FL
): $(libm_MSRC_FL
)
303 $(libm_MOBJ_LD
): $(libm_MSRC_LD
)
306 $(libm_MOBJ_FL
:.o
=.os
): $(libm_MSRC_FL
)
309 $(libm_MOBJ_LD
:.o
=.os
): $(libm_MSRC_LD
)
312 # spare us from adding a gazillion dummy two-liner files
313 $(libm_MOBJ_FL
:.o
=.i
): $(libm_MSRC_FL
)
316 $(libm_MOBJ_LD
:.o
=.i
): $(libm_MSRC_LD
)
320 $(do_rm
) $(addprefix $(libm_OUT
)/,$(foreach e
, o os oS a
,$(foreach d
, *.
*/*.
*/*/*.
,$(d
)$(e
))))