1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
# Makefile for uClibc
#
# Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
#
# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
#
# The routines included in this math library are derived from the
# math library for Apple's MacOS X/Darwin math library, which was
# itself swiped from FreeBSD. The original copyright information
# is as follows:
#
# Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
#
# Developed at SunPro, a Sun Microsystems, Inc. business.
# Permission to use, copy, modify, and distribute this
# software is freely granted, provided that this notice
# is preserved.
#
# It has been ported to work with uClibc and generally behave
# by Erik Andersen <andersen@codepoet.org>
#
CFLAGS-libm := -DNOT_IN_libc -DIS_IN_libm $(SSP_ALL_CFLAGS)
CFLAGS-libm += -D_IEEE_LIBM -D_ISOC99_SOURCE -D_SVID_SOURCE -D_POSIX_MODE
LDFLAGS-libm.so := $(LDFLAGS)
LIBS-libm.so := $(LIBS)
libm_FULL_NAME := libm-$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL).so
libm_ARCH_DIR:=$(top_srcdir)libm/$(TARGET_ARCH)
libm_ARCH_OUT:=$(top_builddir)libm/$(TARGET_ARCH)
ifeq ($(UCLIBC_HAS_FPU),y)
ifeq ($(DO_C99_MATH),y)
-include $(top_srcdir)libm/$(TARGET_ARCH)/Makefile.arch
endif
endif
FL_MSRC := float_wrappers.c
ifeq ($(DO_C99_MATH),y)
CSRC := \
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_gamma.c e_gamma_r.c e_hypot.c e_j0.c \
e_j1.c e_jn.c e_lgamma.c e_lgamma_r.c e_log.c e_log10.c \
e_pow.c e_remainder.c e_rem_pio2.c e_scalb.c e_sinh.c \
e_sqrt.c k_cos.c k_rem_pio2.c k_sin.c k_standard.c k_tan.c \
s_asinh.c s_atan.c s_cbrt.c s_ceil.c s_copysign.c s_cos.c \
s_erf.c s_expm1.c s_fabs.c s_finite.c s_floor.c s_frexp.c \
s_ilogb.c s_ldexp.c s_lib_version.c s_lround.c s_llround.c \
s_log1p.c s_logb.c s_matherr.c s_modf.c s_nextafter.c s_round.c \
s_rint.c s_scalbn.c s_signgam.c s_significand.c s_sin.c s_tan.c \
s_tanh.c w_acos.c w_acosh.c w_asin.c w_atan2.c w_atanh.c w_cabs.c \
w_cosh.c w_drem.c w_exp.c w_fmod.c w_gamma.c w_gamma_r.c \
w_hypot.c w_j0.c w_j1.c w_jn.c w_lgamma.c w_lgamma_r.c \
w_log.c w_log10.c w_pow.c w_remainder.c w_scalb.c w_sinh.c \
w_sqrt.c fpmacros.c nan.c
FL_MOBJ := \
acosf.o acoshf.o asinf.o asinhf.o atan2f.o atanf.o atanhf.o cbrtf.o \
ceilf.o copysignf.o cosf.o coshf.o erfcf.o erff.o exp2f.o expf.o \
expm1f.o fabsf.o fdimf.o floorf.o fmaf.o fmaxf.o fminf.o fmodf.o \
frexpf.o hypotf.o ilogbf.o ldexpf.o lgammaf.o llroundf.o log10f.o \
log1pf.o log2f.o logbf.o logf.o lrintf.o lroundf.o modff.o nearbyintf.o \
nextafterf.o powf.o remainderf.o remquof.o rintf.o roundf.o \
scalblnf.o scalbnf.o sinf.o sinhf.o sqrtf.o tanf.o tanhf.o \
tgammaf.o truncf.o
else
# This list of math functions was taken from POSIX/IEEE 1003.1b-1993
CSRC := \
w_acos.c w_asin.c s_atan.c w_atan2.c s_ceil.c s_cos.c \
w_cosh.c w_exp.c s_fabs.c s_floor.c w_fmod.c s_frexp.c \
s_ldexp.c w_log.c w_log10.c s_modf.c w_pow.c s_sin.c \
w_sinh.c w_sqrt.c s_tan.c s_tanh.c \
s_expm1.c s_scalbn.c s_copysign.c e_acos.c e_asin.c e_atan2.c \
k_cos.c e_cosh.c e_exp.c e_fmod.c e_log.c e_log10.c e_pow.c \
k_sin.c e_sinh.c e_sqrt.c k_tan.c e_rem_pio2.c k_rem_pio2.c \
s_finite.c
# We'll add sqrtf to avoid problems with libstdc++
FL_MOBJ := sqrtf.o
endif
libm_DIR := $(top_srcdir)libm
libm_OUT := $(top_builddir)libm
# assume that arch specific versions are provided as single sources/objects
ifeq ($(UCLIBC_HAS_FPU),y)
ifeq ($(DO_C99_MATH),y)
ifneq ($(strip $(libm_ARCH_OBJS)),)
CFLAGS-libm/$(TARGET_ARCH)/ := $(CFLAGS-libm)
# remove generic sources, if arch specific version is present
ifneq ($(strip $(libm_ARCH_SRC)),)
CSRC := $(filter-out $(notdir $(libm_ARCH_SRC)),$(CSRC))
endif
# remove generic objects built from multi-sources, if arch specific version is present
FL_MOBJ := $(filter-out $(notdir $(libm_ARCH_OBJS)),$(FL_MOBJ))
# we also try to remove % if s_% is in arch specific subdir
FL_MOBJ := $(filter-out $(patsubst s_%.o,%.o,$(notdir $(libm_ARCH_OBJS))),$(FL_MOBJ))
endif
endif
endif
libm_SRC := $(patsubst %.c,$(libm_DIR)/%.c,$(CSRC))
libm_OBJ := $(patsubst $(libm_DIR)/%.c,$(libm_OUT)/%.o,$(libm_SRC))
libm_MSRC := $(libm_DIR)/$(FL_MSRC)
libm_MOBJ := $(patsubst %.o,$(libm_OUT)/%.o,$(FL_MOBJ))
ifeq ($(DOMULTI),y)
CFLAGS-libm += $(patsubst %,-DL_%,$(subst .o,,$(notdir $(libm_MOBJ))))
endif
libm_OBJS := $(libm_OBJ) $(libm_MOBJ)
ifeq ($(DOPIC),y)
libm-a-y += $(libm_OBJS:.o=.os)
else
libm-a-y += $(libm_OBJS)
endif
libm-so-y += $(libm_OBJS:.o=.os)
lib-a-$(UCLIBC_HAS_FLOATS) += $(top_builddir)lib/libm.a
lib-so-$(UCLIBC_HAS_FLOATS) += $(top_builddir)lib/libm.so
objclean-y += libm_clean
ifeq ($(DOMULTI),n)
ifeq ($(DOPIC),y)
$(top_builddir)lib/libm.so: $(top_builddir)lib/libm.a $(libc)
else
$(top_builddir)lib/libm.so: $(libm_OUT)/libm_so.a $(libc)
endif
$(call link.so,$(libm_FULL_NAME),$(MAJOR_VERSION))
else
$(top_builddir)lib/libm.so: $(libm_OUT)/libm.oS $(libc)
$(call linkm.so,$(libm_FULL_NAME),$(MAJOR_VERSION))
endif
$(libm_OUT)/libm_so.a: $(libm-so-y)
$(Q)$(RM) $@
$(do_strip)
$(do_ar)
$(libm_OUT)/libm.oS: $(libm_SRC) $(libm_MSRC) $(libm_ARCH_SRC)
$(Q)$(RM) $@
$(compile-m)
$(do_t_strip)
$(top_builddir)lib/libm.a: $(libm-a-y)
$(Q)$(INSTALL) -d $(dir $@)
$(Q)$(RM) $@
$(do_strip)
$(do_ar)
$(libm_MOBJ): $(libm_MSRC)
$(compile.m)
$(libm_MOBJ:.o=.os): $(libm_MSRC)
$(compile.m)
libm_clean:
$(RM) $(libm_OUT)/*.{o,os,oS,a} $(libm_ARCH_OUT)/*.{o,os,oS}
|
