1# Makefile for uClibc
2#
3# Copyright (C) 2000-2008 Erik Andersen <andersen@uclibc.org>
4#
5# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
6#
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
10# is as follows:
11#
12#     Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
13#
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
17#     is preserved.
18#
19# It has been ported to work with uClibc and generally behave
20# by Erik Andersen <andersen@codepoet.org>
21#
22
23subdirs += libm libm/$(TARGET_ARCH)
24
25CFLAGS-libm := -DNOT_IN_libc -DIS_IN_libm $(SSP_ALL_CFLAGS)
26
27libm_DIR:=$(top_srcdir)libm
28libm_OUT:=$(top_builddir)libm
29
30libm_ARCH_DIR:=$(libm_DIR)/$(TARGET_ARCH)
31libm_ARCH_OUT:=$(libm_OUT)/$(TARGET_ARCH)
32
33ifneq ($(TARGET_SUBARCH),)
34libm_SUBARCH_DIR:=$(libm_DIR)/$(TARGET_ARCH)/$(TARGET_SUBARCH)
35libm_SUBARCH_OUT:=$(libm_OUT)/$(TARGET_ARCH)/$(TARGET_SUBARCH)
36endif
37
38ifeq ($(UCLIBC_HAS_FPU),y)
39ifeq ($(DO_C99_MATH),y)
40-include $(libm_ARCH_DIR)/Makefile.arch
41-include $(libm_SUBARCH_DIR)/Makefile.arch
42endif
43endif
44
45FL_MSRC := float_wrappers.c
46LD_MSRC := ldouble_wrappers.c
47
48ifeq ($(DO_C99_MATH),y)
49libm_CSRC := \
50	e_acos.c e_acosh.c e_asin.c e_atan2.c e_atanh.c e_cosh.c \
51	e_exp.c e_exp10.c e_fmod.c e_hypot.c \
52	e_lgamma_r.c e_log.c e_log2.c e_log10.c \
53	e_pow.c e_remainder.c e_rem_pio2.c e_scalb.c e_sinh.c \
54	e_sqrt.c k_cos.c k_rem_pio2.c k_sin.c k_tan.c \
55	s_asinh.c s_atan.c s_cbrt.c s_ceil.c s_copysign.c s_cos.c \
56	s_erf.c s_expm1.c s_fabs.c s_finite.c s_floor.c s_frexp.c \
57	s_ilogb.c s_ldexp.c s_lib_version.c s_lrint.c s_lround.c s_llround.c \
58	s_log1p.c s_logb.c s_modf.c s_nextafter.c \
59	s_nextafterf.c s_round.c \
60	s_rint.c s_scalbn.c s_signgam.c s_significand.c s_sin.c s_tan.c \
61	s_tanh.c s_trunc.c \
62	w_cabs.c \
63	nan.c carg.c s_llrint.c \
64	s_fpclassify.c s_fpclassifyf.c s_signbit.c s_signbitf.c \
65	s_isnan.c s_isnanf.c s_isinf.c s_isinff.c s_finitef.c \
66	s_fdim.c s_fma.c s_fmax.c s_fmin.c \
67	s_remquo.c \
68	cexp.c sincos.c	\
69	w_acos.c w_acosf.c w_acosl.c \
70	w_asin.c w_asinf.c w_asinl.c \
71	w_atan2.c w_atan2f.c w_atan2l.c \
72	w_hypot.c w_hypotf.c w_hypotl.c \
73	w_cosh.c w_coshf.c w_coshl.c \
74	w_exp.c w_expf.c w_expl.c \
75	w_exp2.c w_exp2f.c w_exp2l.c \
76	w_exp10.c w_exp10f.c w_exp10l.c \
77	w_lgamma_r.c w_lgammaf_r.c w_lgammal_r.c \
78	w_lgamma.c w_lgammaf.c w_lgammal.c \
79	w_tgamma.c w_tgammaf.c w_tgammal.c \
80	w_log.c w_logf.c w_logl.c \
81	w_log2.c w_log2f.c w_log2l.c \
82	w_log10.c w_log10f.c w_log10l.c \
83	w_pow.c w_powf.c w_powl.c \
84	w_sinh.c w_sinhf.c w_sinhl.c \
85	w_fmod.c w_fmodf.c w_fmodl.c \
86	w_sqrt.c w_sqrtf.c w_sqrtl.c \
87	w_remainder.c w_remainderf.c w_remainderl.c \
88	w_acosh.c w_acoshf.c w_acoshl.c \
89	w_atanh.c w_atanhf.c w_atanhl.c \
90	w_scalb.c w_scalbf.c w_scalbl.c
91
92ifeq ($(UCLIBC_HAS_FENV),y)
93	libm_CSRC += k_standard.c k_standardf.c k_standardl.c
94endif
95
96FL_MOBJ := \
97	acosf.o \
98	acoshf.o \
99	asinf.o \
100	asinhf.o \
101	atan2f.o \
102	atanf.o \
103	atanhf.o \
104	cargf.o \
105	cbrtf.o \
106	ceilf.o \
107	copysignf.o \
108	cosf.o \
109	coshf.o \
110	erfcf.o \
111	erff.o \
112	exp2f.o \
113	expf.o \
114	expm1f.o \
115	fabsf.o \
116	fdimf.o \
117	floorf.o \
118	fmaf.o \
119	fmaxf.o \
120	fminf.o \
121	fmodf.o \
122	frexpf.o \
123	gammaf.o \
124	hypotf.o \
125	ilogbf.o \
126	ldexpf.o \
127	lgammaf.o \
128	llrintf.o \
129	llroundf.o \
130	log10f.o \
131	log1pf.o \
132	log2f.o \
133	logbf.o \
134	logf.o \
135	lrintf.o \
136	lroundf.o \
137	modff.o \
138	nearbyintf.o \
139	nexttowardf.o \
140	powf.o \
141	remainderf.o \
142	remquof.o \
143	rintf.o \
144	roundf.o \
145	scalblnf.o \
146	scalbnf.o \
147	significandf.o \
148	sinf.o \
149	sinhf.o \
150	sqrtf.o \
151	tanf.o \
152	tanhf.o \
153	tgammaf.o \
154	truncf.o \
155
156ifeq ($(UCLIBC_SUSV3_LEGACY),y)
157FL_MOBJ += scalbf.o
158endif
159
160# Do not (yet?) implement the float variants of bessel functions
161ifeq (not-yet-implemented-$(DO_XSI_MATH),y)
162FL_MOBJ += \
163	j0f.o \
164	j1f.o \
165	jnf.o \
166	y0f.o \
167	y1f.o \
168	ynf.o
169endif
170
171LD_MOBJ := \
172	__finitel.o \
173	__fpclassifyl.o \
174	__isinfl.o \
175	__isnanl.o \
176	__signbitl.o \
177	acoshl.o \
178	acosl.o \
179	asinhl.o \
180	asinl.o \
181	atan2l.o \
182	atanhl.o \
183	atanl.o \
184	cargl.o \
185	cbrtl.o \
186	ceill.o \
187	copysignl.o \
188	coshl.o \
189	cosl.o \
190	erfcl.o \
191	erfl.o \
192	exp2l.o \
193	expl.o \
194	expm1l.o \
195	fabsl.o \
196	fdiml.o \
197	floorl.o \
198	fmal.o \
199	fmaxl.o \
200	fminl.o \
201	fmodl.o \
202	frexpl.o \
203	gammal.o \
204	hypotl.o \
205	ilogbl.o \
206	ldexpl.o \
207	lgammal.o \
208	llrintl.o \
209	llroundl.o \
210	log10l.o \
211	log1pl.o \
212	log2l.o \
213	logbl.o \
214	logl.o \
215	lrintl.o \
216	lroundl.o \
217	modfl.o \
218	nearbyintl.o \
219	nextafterl.o \
220	nexttowardl.o \
221	powl.o \
222	remainderl.o \
223	remquol.o \
224	rintl.o \
225	roundl.o \
226	scalblnl.o \
227	scalbnl.o \
228	significandl.o \
229	sinhl.o \
230	sinl.o \
231	sqrtl.o \
232	tanhl.o \
233	tanl.o \
234	tgammal.o \
235	truncl.o \
236
237# Do not (yet?) implement the long double variants of bessel functions
238ifeq (not-yet-implemented-$(DO_XSI_MATH),y)
239LD_MOBJ += \
240	j0l.o \
241	j1l.o \
242	jnl.o \
243	y0l.o \
244	y1l.o \
245	ynl.o
246endif
247
248else
249
250# This list of math functions was taken from POSIX/IEEE 1003.1b-1993
251libm_CSRC := \
252	s_atan.c s_ceil.c s_cos.c \
253	s_fabs.c s_floor.c s_frexp.c \
254	s_ldexp.c s_modf.c s_sin.c \
255	s_tan.c s_tanh.c \
256	s_expm1.c s_scalbn.c s_copysign.c e_acos.c e_asin.c e_atan2.c \
257	k_cos.c e_cosh.c e_exp.c e_fmod.c e_log.c e_log10.c e_pow.c \
258	k_sin.c e_sinh.c e_sqrt.c k_tan.c e_rem_pio2.c k_rem_pio2.c \
259	s_finite.c e_exp10.c 	\
260	matherr_wrapers.c k_standart.c
261
262# We'll add sqrtf to avoid problems with libstdc++
263FL_MOBJ := sqrtf.o
264endif
265
266ifeq ($(DO_XSI_MATH),y)
267libm_CSRC += \
268	e_j0.c e_j1.c e_jn.c \
269	w_j0.c w_j0f.c w_j0l.c \
270	w_j1.c w_j1f.c w_j1l.c \
271	w_jn.c w_jnf.c w_jnl.c
272endif
273
274# assume that arch specific versions are provided as single sources/objects
275ifeq ($(UCLIBC_HAS_FPU),y)
276ifeq ($(DO_C99_MATH),y)
277ifneq ($(strip $(libm_ARCH_OBJS)),)
278
279# remove generic sources, if arch specific version is present
280ifneq ($(strip $(libm_ARCH_SRC)),)
281libm_CSRC := $(filter-out $(notdir $(libm_ARCH_SRC)),$(libm_CSRC))
282endif
283
284# remove generic objects built from multi-sources, if arch specific version is present
285FL_MOBJ := $(filter-out $(notdir $(libm_ARCH_OBJS)),$(FL_MOBJ))
286LD_MOBJ := $(filter-out $(notdir $(libm_ARCH_OBJS)),$(LD_MOBJ))
287
288# we also try to remove % if s_% is in arch specific subdir
289FL_MOBJ := $(filter-out $(patsubst s_%.o,%.o,$(notdir $(libm_ARCH_OBJS))),$(FL_MOBJ))
290LD_MOBJ := $(filter-out $(patsubst s_%.o,%.o,$(notdir $(libm_ARCH_OBJS))),$(LD_MOBJ))
291endif
292endif
293endif
294
295libm_SRC := $(patsubst %.c,$(libm_DIR)/%.c,$(libm_CSRC))
296libm_OBJ := $(patsubst $(libm_DIR)/%.c,$(libm_OUT)/%.o,$(libm_SRC))
297
298ifeq ($(strip $(UCLIBC_HAS_LONG_DOUBLE_MATH)),y)
299libm_MSRC_LD := $(libm_DIR)/$(LD_MSRC)
300libm_MOBJ_LD := $(patsubst %.o,$(libm_OUT)/%.o,$(LD_MOBJ))
301endif
302libm_MSRC_FL := $(libm_DIR)/$(FL_MSRC)
303libm_MOBJ_FL := $(patsubst %.o,$(libm_OUT)/%.o,$(FL_MOBJ))
304
305libm_OBJS := $(libm_OBJ) $(libm_MOBJ_FL) $(libm_MOBJ_LD)
306
307ifeq ($(DOPIC),y)
308libm-a-y += $(libm_OBJS:.o=.os)
309else
310libm-a-y += $(libm_OBJS)
311endif
312libm-so-y += $(libm_OBJS:.o=.os)
313
314objclean-y += CLEAN_libm
315
316$(libm_OUT)/libm.oS: $(libm_SRC) $(libm_MSRC_FL) $(libm_MSRC_LD) $(libm_ARCH_SRC)
317	$(Q)$(RM) $@
318	$(compile-m)
319
320$(libm_MOBJ_FL): $(libm_MSRC_FL)
321	$(compile.m)
322
323$(libm_MOBJ_LD): $(libm_MSRC_LD)
324	$(compile.m)
325
326$(libm_MOBJ_FL:.o=.os): $(libm_MSRC_FL)
327	$(compile.m)
328
329$(libm_MOBJ_LD:.o=.os): $(libm_MSRC_LD)
330	$(compile.m)
331
332# spare us from adding a gazillion dummy two-liner files
333$(libm_MOBJ_FL:.o=.i): $(libm_MSRC_FL)
334	$(compile.mi)
335
336$(libm_MOBJ_LD:.o=.i): $(libm_MSRC_LD)
337	$(compile.mi)
338
339CLEAN_libm:
340	$(do_rm) $(addprefix $(libm_OUT)/,$(foreach e, o os oS a,$(foreach d, *. */*. */*/*.,$(d)$(e))))
341