3 # Copyright (C) 2000-2006 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
33 # Fix builds for powerpc as there are different cores in this
35 ifeq ($(TARGET_ARCH),powerpc)
36 ifeq ($(CONFIG_E500),y)
37 libm_ARCH_DIR:=$(top_srcdir)libm/$(TARGET_ARCH)/e500
38 libm_ARCH_OUT:=$(top_builddir)libm/$(TARGET_ARCH)/e500
40 libm_ARCH_DIR:=$(top_srcdir)libm/$(TARGET_ARCH)/classic
41 libm_ARCH_OUT:=$(top_builddir)libm/$(TARGET_ARCH)/classic
44 libm_ARCH_DIR:=$(top_srcdir)libm/$(TARGET_ARCH)
45 libm_ARCH_OUT:=$(top_builddir)libm/$(TARGET_ARCH)
48 libm_ARCH_fpu_DIR:=$(libm_ARCH_DIR)/fpu
49 libm_ARCH_fpu_OUT:=$(libm_ARCH_OUT)/fpu
51 ifeq ($(UCLIBC_HAS_FPU),y)
52 ifeq ($(DO_C99_MATH),y)
53 -include $(libm_ARCH_DIR)/Makefile.arch
57 FL_MSRC := float_wrappers.c
59 ifeq ($(DO_C99_MATH),y)
61 e_acos.c e_acosh.c e_asin.c e_atan2.c e_atanh.c e_cosh.c \
62 e_exp.c e_fmod.c e_gamma.c e_gamma_r.c e_hypot.c e_j0.c \
63 e_j1.c e_jn.c e_lgamma.c e_lgamma_r.c e_log.c e_log10.c \
64 e_pow.c e_remainder.c e_rem_pio2.c e_scalb.c e_sinh.c \
65 e_sqrt.c k_cos.c k_rem_pio2.c k_sin.c k_standard.c k_tan.c \
66 s_asinh.c s_atan.c s_cbrt.c s_ceil.c s_copysign.c s_cos.c \
67 s_erf.c s_expm1.c s_fabs.c s_finite.c s_floor.c s_frexp.c \
68 s_ilogb.c s_ldexp.c s_lib_version.c s_lrint.c s_lround.c s_llround.c \
69 s_log1p.c s_logb.c s_matherr.c s_modf.c s_nextafter.c s_round.c \
70 s_rint.c s_scalbn.c s_signgam.c s_significand.c s_sin.c s_tan.c \
71 s_tanh.c s_trunc.c w_acos.c w_acosh.c w_asin.c w_atan2.c w_atanh.c \
72 w_cabs.c w_cosh.c w_drem.c w_exp.c w_fmod.c w_gamma.c w_gamma_r.c \
73 w_hypot.c w_j0.c w_j1.c w_jn.c w_lgamma.c w_lgamma_r.c \
74 w_log.c w_log10.c w_pow.c w_remainder.c w_scalb.c w_sinh.c \
75 w_sqrt.c fpmacros.c nan.c carg.c s_llrint.c
77 acosf.o acoshf.o asinf.o asinhf.o atan2f.o atanf.o atanhf.o cbrtf.o \
78 ceilf.o copysignf.o cosf.o coshf.o erfcf.o erff.o exp2f.o expf.o \
79 expm1f.o fabsf.o fdimf.o floorf.o fmaf.o fmaxf.o fminf.o fmodf.o \
80 frexpf.o hypotf.o ilogbf.o ldexpf.o lgammaf.o llroundf.o log10f.o \
81 log1pf.o log2f.o logbf.o logf.o lrintf.o lroundf.o modff.o nearbyintf.o \
82 nextafterf.o powf.o remainderf.o remquof.o rintf.o roundf.o \
83 scalblnf.o scalbnf.o sinf.o sinhf.o sqrtf.o tanf.o tanhf.o \
84 tgammaf.o truncf.o cargf.o llrintf.o
86 # This list of math functions was taken from POSIX/IEEE 1003.1b-1993
88 w_acos.c w_asin.c s_atan.c w_atan2.c s_ceil.c s_cos.c \
89 w_cosh.c w_exp.c s_fabs.c s_floor.c w_fmod.c s_frexp.c \
90 s_ldexp.c w_log.c w_log10.c s_modf.c w_pow.c s_sin.c \
91 w_sinh.c w_sqrt.c s_tan.c s_tanh.c \
92 s_expm1.c s_scalbn.c s_copysign.c e_acos.c e_asin.c e_atan2.c \
93 k_cos.c e_cosh.c e_exp.c e_fmod.c e_log.c e_log10.c e_pow.c \
94 k_sin.c e_sinh.c e_sqrt.c k_tan.c e_rem_pio2.c k_rem_pio2.c \
96 # We'll add sqrtf to avoid problems with libstdc++
100 libm_DIR := $(top_srcdir)libm
101 libm_OUT := $(top_builddir)libm
103 # assume that arch specific versions are provided as single sources/objects
104 ifeq ($(UCLIBC_HAS_FPU),y)
105 ifeq ($(DO_C99_MATH),y)
106 ifneq ($(strip $(libm_ARCH_OBJS)),)
107 ifeq ($(TARGET_ARCH),powerpc)
108 ifeq ($(CONFIG_E500),y)
109 CFLAGS-libm/$(TARGET_ARCH)/e500/ := $(CFLAGS-libm)
111 CFLAGS-libm/$(TARGET_ARCH)/classic/ := $(CFLAGS-libm)
114 CFLAGS-libm/$(TARGET_ARCH)/ := $(CFLAGS-libm)
117 # remove generic sources, if arch specific version is present
118 ifneq ($(strip $(libm_ARCH_SRC)),)
119 libm_CSRC := $(filter-out $(notdir $(libm_ARCH_SRC)),$(libm_CSRC))
122 # remove generic objects built from multi-sources, if arch specific version is present
123 FL_MOBJ := $(filter-out $(notdir $(libm_ARCH_OBJS)),$(FL_MOBJ))
125 # we also try to remove % if s_% is in arch specific subdir
126 FL_MOBJ := $(filter-out $(patsubst s_%.o,%.o,$(notdir $(libm_ARCH_OBJS))),$(FL_MOBJ))
131 libm_SRC := $(patsubst %.c,$(libm_DIR)/%.c,$(libm_CSRC))
132 libm_OBJ := $(patsubst $(libm_DIR)/%.c,$(libm_OUT)/%.o,$(libm_SRC))
134 libm_MSRC := $(libm_DIR)/$(FL_MSRC)
135 libm_MOBJ := $(patsubst %.o,$(libm_OUT)/%.o,$(FL_MOBJ))
138 CFLAGS-libm += $(patsubst %,-DL_%,$(subst .o,,$(notdir $(libm_MOBJ))))
141 libm_OBJS := $(libm_OBJ) $(libm_MOBJ)
144 libm-a-y += $(libm_OBJS:.o=.os)
146 libm-a-y += $(libm_OBJS)
148 libm-so-y += $(libm_OBJS:.o=.os)
150 lib-a-$(UCLIBC_HAS_FLOATS) += $(top_builddir)lib/libm.a
151 lib-so-$(UCLIBC_HAS_FLOATS) += $(top_builddir)lib/libm.so
152 objclean-y += libm_clean
156 $(top_builddir)lib/libm.so: $(top_builddir)lib/libm.a $(libc)
158 $(top_builddir)lib/libm.so: $(libm_OUT)/libm_so.a $(libc)
160 $(call link.so,$(libm_FULL_NAME),$(MAJOR_VERSION))
162 $(top_builddir)lib/libm.so: $(libm_OUT)/libm.oS | $(libc)
163 $(call linkm.so,$(libm_FULL_NAME),$(MAJOR_VERSION))
166 $(libm_OUT)/libm_so.a: $(libm-so-y)
171 $(libm_OUT)/libm.oS: $(libm_SRC) $(libm_MSRC) $(libm_ARCH_SRC)
176 $(top_builddir)lib/libm.a: $(libm-a-y)
177 $(Q)$(INSTALL) -d $(dir $@)
182 $(libm_MOBJ): $(libm_MSRC)
185 $(libm_MOBJ:.o=.os): $(libm_MSRC)
189 $(RM) $(libm_OUT)/{,*/,*/*/}*.{o,os,oS,a}