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
|
# Copyright (C) 1996, 1997 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
# The GNU C Library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Library General Public License for more details.
# You should have received a copy of the GNU Library General Public
# License along with the GNU C Library; see the file COPYING.LIB. If not,
# write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
# Makefile for the math library.
subdir := math
# Installed header files.
headers := math.h bits/mathcalls.h bits/mathinline.h bits/huge_val.h \
bits/nan.h fpu_control.h complex.h bits/cmathcalls.h \
fenv.h bits/fenv.h bits/mathdef.h tgmath.h
# Internal header files.
distribute := math_private.h machine/asm.h machine/endian.h
# FPU support code.
aux := fpu_control setfpucw
# Build the -lm library.
extra-libs := libm
extra-libs-others = $(extra-libs)
libm-map := libm.map
libm-support = k_standard s_lib_version s_matherr s_signgam \
fclrexcpt fgetexcptflg fraiseexcpt fsetexcptflg \
ftestexcept fegetround fesetround fegetenv feholdexcpt \
fesetenv feupdateenv
libm-calls = e_acos e_acosh e_asin e_atan2 e_atanh e_cosh e_exp e_fmod \
e_hypot e_j0 e_j1 e_jn e_lgamma_r e_log e_log10 e_pow \
e_rem_pio2 e_remainder e_scalb e_sinh e_sqrt e_gamma_r \
k_cos k_rem_pio2 k_sin k_tan s_asinh s_atan s_cbrt \
s_ceil s_copysign s_cos s_erf s_expm1 s_fabs s_finite \
s_floor s_frexp s_ilogb s_ldexp s_log1p s_logb \
s_modf s_nextafter s_nextafterx s_rint s_scalbn s_scalbln \
s_significand s_sin s_tan s_tanh w_acos w_acosh w_asin \
w_atan2 w_atanh w_cosh w_drem w_exp w_exp2 w_fmod w_gamma \
w_hypot w_j0 w_j1 w_jn w_lgamma w_lgamma_r \
w_log w_log10 w_pow w_remainder w_scalb w_sinh w_sqrt \
s_signbit s_fpclassify s_fmax s_fmin s_fdim s_nan s_trunc \
s_remquo s_log2 s_exp2 s_round s_nearbyint s_sincos \
conj cimag creal cabs carg s_cexp s_csinh s_ccosh s_clog \
s_catan s_casin s_ccos s_csin s_ctan s_ctanh s_cacos \
s_casinh s_cacosh s_catanh s_csqrt s_cpow s_cproj s_clog10 \
s_fma s_lrint s_llrint s_lround s_llround
libm-routines = $(libm-support) $(libm-calls) \
$(patsubst %_rf,%f_r,$(libm-calls:=f)) \
$(long-m-$(long-double-fcts))
long-m-routines = $(patsubst %_rl,%l_r,$(libm-calls:=l))
long-m-yes = $(long-m-routines)
distribute += $(long-m-yes:=.c)
# These functions are in libc instead of libm because __printf_fp
# calls them, so any program using printf will need them linked in,
# and we don't want to have to link every program with -lm.
calls = s_isinf s_isnan s_finite s_copysign s_modf s_scalbn s_frexp s_ldexp \
s_signbit
routines = $(calls) $(calls:=f) $(long-c-$(long-double-fcts))
long-c-yes = $(calls:=l)
distribute += $(long-c-yes:=.c)
# Rules for the test suite.
tests = test-float test-double $(test-longdouble-$(long-double-fcts)) \
test-ifloat test-idouble test-matherr test-fenv \
atest-exp atest-sincos atest-exp2 # test-reduce
# We do the `long double' tests only if this data type is available and
# distinct from `double'.
test-longdouble-yes = test-ldouble test-ildoubl
CFLAGS-test-float.c = -fno-inline -ffloat-store
CFLAGS-test-double.c = -fno-inline -ffloat-store
CFLAGS-test-ldouble.c = -fno-inline -ffloat-store
LDLIBS-test-ifloat = math/libm
LDLIBS-test-idouble = math/libm
LDLIBS-test-ildoubl = math/libm
LDLIBS-test-float = math/libm
LDLIBS-test-double = math/libm
LDLIBS-test-ldouble = math/libm
LDLIBS-test-matherr = math/libm
LDLIBS-test-reduce = math/libm
LDLIBS-atest-exp = math/libm
LDLIBS-atest-sincos = math/libm
LDLIBS-atest-exp2 = math/libm
distribute += libm-test.c
# The -lieee module sets the _LIB_VERSION_ switch to IEEE mode
# for error handling in the -lm functions.
install-lib += libieee.a
non-lib.a += libieee.a
extra-objs += libieee.a ieee-math.o
distribute += ieee-math.c
include ../Rules
# This file defines the default _LIB_VERSION variable that controls
# the error return conventions for the math functions.
CPPFLAGS-s_lib_version.c := -D_POSIX_MODE
# We don't want the fdlibm code to use the inline math functions,
# only the fdlibm code.
CPPFLAGS += -D__NO_MATH_INLINES
# Using omit-long-double-fcts is only a temporary hack.
ifneq ($(omit-long-double-fcts),yes)
ifneq ($(long-double-fcts),yes)
# The `double' and `long double' types are the same on this machine.
# We won't compile the `long double' code at all. Tell the `double' code
# to define aliases for the `FUNCl' names. To avoid type conflicts in
# defining those aliases, tell <math.h> to declare the `FUNCl' names with
# `double' instead of `long double'.
CPPFLAGS += -DNO_LONG_DOUBLE -D_Mlong_double_=double
endif
endif
# The fdlibm code generates a lot of these warnings but is otherwise clean.
override CFLAGS += -Wno-uninitialized -Wno-write-strings
# The -lieee library is actually an object file.
# The module just defines the _LIB_VERSION_ variable.
# It's not a library to make sure it is linked in instead of s_lib_version.o.
$(objpfx)libieee.a: $(objpfx)ieee-math.o
rm -f $@
ln $< $@
ifeq ($(build-shared),yes)
$(addprefix $(objpfx),$(tests)): $(objpfx)libm.so$(libm.so-version)
else
$(addprefix $(objpfx),$(tests)): $(objpfx)libm.a
endif
# Depend on libc.so so a DT_NEEDED is generated in the shared objects.
# This ensures they will load libc.so for needed symbols if loaded by
# a statically-linked program that hasn't already loaded it.
$(objpfx)libm.so: $(common-objpfx)libc.so
|
GitWeb