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>
23 CFLAGS-libm := -DNOT_IN_libc -DIS_IN_libm $(SSP_ALL_CFLAGS)
24 CFLAGS-libm += -D_IEEE_LIBM
26 LDFLAGS-libm.so := $(LDFLAGS)
28 LIBS-libm.so := $(LIBS)
30 libm_FULL_NAME := libm-$(VERSION).so
32 libm_DIR:=$(top_srcdir)libm
33 libm_OUT:=$(top_builddir)libm
35 # Fix builds for powerpc as there are different cores in this
37 ifeq ($(TARGET_ARCH)-$(CONFIG_E500),powerpc-y)
38 libm_ARCH_DIR:=$(libm_DIR)/$(TARGET_ARCH)/e500
39 libm_ARCH_OUT:=$(libm_OUT)/$(TARGET_ARCH)/e500
41 libm_ARCH_DIR:=$(libm_DIR)/$(TARGET_ARCH)
42 libm_ARCH_OUT:=$(libm_OUT)/$(TARGET_ARCH)
45 libm_ARCH_fpu_DIR:=$(libm_ARCH_DIR)/fpu
46 libm_ARCH_fpu_OUT:=$(libm_ARCH_OUT)/fpu
48 ifeq ($(UCLIBC_HAS_FPU),y)
49 ifeq ($(DO_C99_MATH),y)
50 -include $(libm_ARCH_DIR)/Makefile.arch
54 FL_MSRC := float_wrappers.c
55 LD_MSRC := ldouble_wrappers.c
57 ifeq ($(DO_C99_MATH),y)
59 e_acos.c e_acosh.c e_asin.c e_atan2.c e_atanh.c e_cosh.c \
60 e_exp.c e_fmod.c e_hypot.c e_j0.c \
61 e_j1.c e_jn.c e_lgamma_r.c e_log.c e_log2.c e_log10.c \
62 e_pow.c e_remainder.c e_rem_pio2.c e_scalb.c e_sinh.c \
63 e_sqrt.c k_cos.c k_rem_pio2.c k_sin.c k_standard.c k_tan.c \
64 s_asinh.c s_atan.c s_cbrt.c s_ceil.c s_copysign.c s_cos.c \
65 s_erf.c s_expm1.c s_fabs.c s_finite.c s_floor.c s_frexp.c \
66 s_ilogb.c s_ldexp.c s_lib_version.c s_lrint.c s_lround.c s_llround.c \
67 s_log1p.c s_logb.c s_matherr.c s_modf.c s_nextafter.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 \
75 s_remquo.c s_scalbln.c w_exp2.c
76 # REMOVED: w_gamma_r.c
78 acosf.o acoshf.o asinf.o asinhf.o atan2f.o atanf.o atanhf.o cbrtf.o \
79 ceilf.o copysignf.o cosf.o coshf.o erfcf.o erff.o exp2f.o expf.o \
80 expm1f.o fabsf.o fdimf.o floorf.o fmaf.o fmaxf.o fminf.o fmodf.o \
81 frexpf.o hypotf.o ilogbf.o ldexpf.o lgammaf.o llroundf.o log10f.o \
82 log1pf.o log2f.o logbf.o logf.o lrintf.o lroundf.o modff.o nearbyintf.o \
83 nextafterf.o powf.o remainderf.o remquof.o rintf.o roundf.o \
84 scalblnf.o scalbnf.o sinf.o sinhf.o sqrtf.o tanf.o tanhf.o \
85 tgammaf.o truncf.o cargf.o llrintf.o
87 LD_MOBJ := acoshl.o acosl.o asinhl.o asinl.o atan2l.o atanhl.o atanl.o cargl.o cbrtl.o \
88 ceill.o copysignl.o coshl.o cosl.o erfcl.o erfl.o exp2l.o expl.o \
89 expm1l.o fabsl.o finitel.o fdiml.o floorl.o fmal.o fmaxl.o fminl.o fmodl.o fpclassifyl.o \
90 frexpl.o gammal.o hypotl.o ilogbl.o isinfl.o isnanl.o ldexpl.o lgammal.o llrintl.o \
91 llroundl.o log10l.o log1pl.o XXXlog2l.o logbl.o logl.o lrintl.o lroundl.o \
92 modfl.o nearbyintl.o nextafterl.o XXXnexttowardl.o powl.o remainderl.o \
93 remquol.o rintl.o roundl.o scalblnl.o scalbnl.o signbitl.o sinhl.o sinl.o sqrtl.o \
94 tanhl.o tanl.o tgammal.o truncl.o
96 # This list of math functions was taken from POSIX/IEEE 1003.1b-1993
98 s_atan.c s_ceil.c s_cos.c \
99 s_fabs.c s_floor.c s_frexp.c \
100 s_ldexp.c s_modf.c s_sin.c \
102 s_expm1.c s_scalbn.c s_copysign.c e_acos.c e_asin.c e_atan2.c \
103 k_cos.c e_cosh.c e_exp.c e_fmod.c e_log.c e_log10.c e_pow.c \
104 k_sin.c e_sinh.c e_sqrt.c k_tan.c e_rem_pio2.c k_rem_pio2.c \
106 # We'll add sqrtf to avoid problems with libstdc++
110 # assume that arch specific versions are provided as single sources/objects
111 ifeq ($(UCLIBC_HAS_FPU),y)
112 ifeq ($(DO_C99_MATH),y)
113 ifneq ($(strip $(libm_ARCH_OBJS)),)
114 ifeq ($(TARGET_ARCH)-$(CONFIG_E500),powerpc-y)
115 CFLAGS-libm/$(TARGET_ARCH)/e500/ := $(CFLAGS-libm)
117 CFLAGS-libm/$(TARGET_ARCH)/ := $(CFLAGS-libm)
120 # remove generic sources, if arch specific version is present
121 ifneq ($(strip $(libm_ARCH_SRC)),)
122 libm_CSRC := $(filter-out $(notdir $(libm_ARCH_SRC)),$(libm_CSRC))
125 # remove generic objects built from multi-sources, if arch specific version is present
126 FL_MOBJ := $(filter-out $(notdir $(libm_ARCH_OBJS)),$(FL_MOBJ))
127 LD_MOBJ := $(filter-out $(notdir $(libm_ARCH_OBJS)),$(LD_MOBJ))
129 # we also try to remove % if s_% is in arch specific subdir
130 FL_MOBJ := $(filter-out $(patsubst s_%.o,%.o,$(notdir $(libm_ARCH_OBJS))),$(FL_MOBJ))
131 LD_MOBJ := $(filter-out $(patsubst s_%.o,%.o,$(notdir $(libm_ARCH_OBJS))),$(LD_MOBJ))
136 libm_SRC := $(patsubst %.c,$(libm_DIR)/%.c,$(libm_CSRC))
137 libm_OBJ := $(patsubst $(libm_DIR)/%.c,$(libm_OUT)/%.o,$(libm_SRC))
139 ifeq ($(strip $(UCLIBC_HAS_LONG_DOUBLE_MATH)),y)
140 libm_MSRC_LD := $(libm_DIR)/$(LD_MSRC)
141 libm_MOBJ_LD := $(patsubst %.o,$(libm_OUT)/%.o,$(LD_MOBJ))
143 libm_MSRC_FL := $(libm_DIR)/$(FL_MSRC)
144 libm_MOBJ_FL := $(patsubst %.o,$(libm_OUT)/%.o,$(FL_MOBJ))
148 CFLAGS-libm += $(patsubst %,-DL_%,$(subst .o,,$(notdir $(libm_MOBJ_FL))))
149 ifeq ($(strip $(UCLIBC_HAS_LONG_DOUBLE_MATH)),y)
150 CFLAGS-libm += $(patsubst %,-DL_%,$(subst .o,,$(notdir $(libm_MOBJ_LD))))
154 libm_OBJS := $(libm_OBJ) $(libm_MOBJ_FL) $(libm_MOBJ_LD)
157 libm-a-y += $(libm_OBJS:.o=.os)
159 libm-a-y += $(libm_OBJS)
161 libm-so-y += $(libm_OBJS:.o=.os)
163 lib-a-$(UCLIBC_HAS_FLOATS) += $(top_builddir)lib/libm.a
164 lib-so-$(UCLIBC_HAS_FLOATS) += $(top_builddir)lib/libm.so
165 objclean-y += libm_clean
169 $(top_builddir)lib/libm.so: $(top_builddir)lib/libm.a $(libc.depend)
171 $(top_builddir)lib/libm.so: $(libm_OUT)/libm_so.a $(libc.depend)
173 $(call link.so,$(libm_FULL_NAME),$(MAJOR_VERSION))
175 $(top_builddir)lib/libm.so: $(libm_OUT)/libm.oS | $(libc.depend)
176 $(call linkm.so,$(libm_FULL_NAME),$(MAJOR_VERSION))
179 $(libm_OUT)/libm_so.a: $(libm-so-y)
183 $(libm_OUT)/libm.oS: $(libm_SRC) $(libm_MSRC_FL) $(libm_MSRC_LD) $(libm_ARCH_SRC)
187 $(top_builddir)lib/libm.a: $(libm-a-y)
188 $(Q)$(INSTALL) -d $(dir $@)
192 $(libm_MOBJ_FL): $(libm_MSRC_FL)
195 $(libm_MOBJ_LD): $(libm_MSRC_LD)
198 $(libm_MOBJ_FL:.o=.os): $(libm_MSRC_FL)
201 $(libm_MOBJ_LD:.o=.os): $(libm_MSRC_LD)
204 # spare us from adding a gazillion dummy two-liner files
205 $(libm_MOBJ_FL:.o=.i): $(libm_MSRC_FL)
208 $(libm_MOBJ_LD:.o=.i): $(libm_MSRC_LD)
212 $(do_rm) $(addprefix $(libm_OUT)/,$(foreach e, o os oS a,$(foreach d, *. */*. */*/*.,$(d)$(e))))