1 # Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
2 # This file is part of the GNU C Library.
4 # The GNU C Library is free software; you can redistribute it and/or
5 # modify it under the terms of the GNU Library General Public License as
6 # published by the Free Software Foundation; either version 2 of the
7 # License, or (at your option) any later version.
9 # The GNU C Library is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 # Library General Public License for more details.
14 # You should have received a copy of the GNU Library General Public
15 # License along with the GNU C Library; see the file COPYING.LIB. If not,
16 # write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 # Boston, MA 02111-1307, USA.
19 # Makefile for the math library.
23 # Installed header files.
24 headers
:= math.h bits
/mathcalls.h bits
/mathinline.h bits
/huge_val.h \
25 bits
/nan.h fpu_control.h complex.h bits
/cmathcalls.h \
26 fenv.h bits
/fenv.h bits
/mathdef.h tgmath.h
28 # Internal header files.
29 distribute
:= math_private.h machine
/asm.h machine
/endian.h
32 aux
:= fpu_control setfpucw
34 # Build the -lm library.
37 extra-libs-others
= $(extra-libs
)
41 libm-support
= k_standard s_lib_version s_matherr s_signgam \
42 fclrexcpt fgetexcptflg fraiseexcpt fsetexcptflg \
43 ftestexcept fegetround fesetround fegetenv feholdexcpt \
44 fesetenv feupdateenv t_exp
45 libm-calls
= e_acos e_acosh e_asin e_atan2 e_atanh e_cosh e_exp e_fmod \
46 e_hypot e_j0 e_j1 e_jn e_lgamma_r e_log e_log10 e_pow \
47 e_rem_pio2 e_remainder e_scalb e_sinh e_sqrt e_gamma_r \
48 k_cos k_rem_pio2 k_sin k_tan s_asinh s_atan s_cbrt \
49 s_ceil s_copysign s_cos s_erf s_expm1 s_fabs s_finite \
50 s_floor s_frexp s_ilogb s_ldexp s_log1p s_logb \
51 s_modf s_nextafter s_nextafterx s_rint s_scalbn s_scalbln \
52 s_significand s_sin s_tan s_tanh w_acos w_acosh w_asin \
53 w_atan2 w_atanh w_cosh w_drem w_exp w_exp2 w_fmod w_gamma \
54 w_hypot w_j0 w_j1 w_jn w_lgamma w_lgamma_r \
55 w_log w_log10 w_pow w_remainder w_scalb w_sinh w_sqrt \
56 s_signbit s_fpclassify s_fmax s_fmin s_fdim s_nan s_trunc \
57 s_remquo s_log2 s_exp2 s_round s_nearbyint s_sincos \
58 conj cimag creal cabs carg s_cexp s_csinh s_ccosh s_clog \
59 s_catan s_casin s_ccos s_csin s_ctan s_ctanh s_cacos \
60 s_casinh s_cacosh s_catanh s_csqrt s_cpow s_cproj s_clog10 \
61 s_fma s_lrint s_llrint s_lround s_llround
62 libm-routines
= $(libm-support
) $(libm-calls
) \
63 $(patsubst %_rf
,%f_r
,$(libm-calls
:=f
)) \
64 $(long-m-
$(long-double-fcts
))
65 long-m-routines
= $(patsubst %_rl
,%l_r
,$(libm-calls
:=l
))
66 long-m-yes
= $(long-m-routines
)
67 distribute
+= $(long-m-yes
:=.c
)
69 # These functions are in libc instead of libm because __printf_fp
70 # calls them, so any program using printf will need them linked in,
71 # and we don't want to have to link every program with -lm.
72 calls
= s_isinf s_isnan s_finite s_copysign s_modf s_scalbn s_frexp s_ldexp \
74 routines
= $(calls
) $(calls
:=f
) $(long-c-
$(long-double-fcts
))
75 long-c-yes
= $(calls
:=l
)
76 distribute
+= $(long-c-yes
:=.c
)
78 # Rules for the test suite.
79 tests
= test-float test-double
$(test-longdouble-
$(long-double-fcts
)) \
80 test-ifloat test-idouble test-matherr test-fenv \
81 atest-exp atest-sincos atest-exp2
82 # We do the `long double' tests only if this data type is available and
83 # distinct from `double'.
84 test-longdouble-yes
= test-ldouble test-ildoubl
86 CFLAGS-test-float.c
= -fno-inline
-ffloat-store
87 CFLAGS-test-double.c
= -fno-inline
-ffloat-store
88 CFLAGS-test-ldouble.c
= -fno-inline
-ffloat-store
89 CFLAGS-test-ifloat.c
= -U__LIBC_INTERNAL_MATH_INLINES
90 CFLAGS-test-idouble.c
= -U__LIBC_INTERNAL_MATH_INLINES
91 CFLAGS-test-ildoubl.c
= -U__LIBC_INTERNAL_MATH_INLINES
92 LDLIBS-test-ifloat
= math
/libm
93 LDLIBS-test-idouble
= math
/libm
94 LDLIBS-test-ildoubl
= math
/libm
95 LDLIBS-test-float
= math
/libm
96 LDLIBS-test-double
= math
/libm
97 LDLIBS-test-ldouble
= math
/libm
98 LDLIBS-test-matherr
= math
/libm
99 LDLIBS-test-reduce
= math
/libm
100 LDLIBS-atest-exp
= math
/libm
101 LDLIBS-atest-sincos
= math
/libm
102 LDLIBS-atest-exp2
= math
/libm
104 distribute
+= libm-test.c
107 # The -lieee module sets the _LIB_VERSION_ switch to IEEE mode
108 # for error handling in the -lm functions.
109 install-lib
+= libieee.a
110 non-lib.a
+= libieee.a
111 extra-objs
+= libieee.a ieee-math.o
112 distribute
+= ieee-math.c
117 # This file defines the default _LIB_VERSION variable that controls
118 # the error return conventions for the math functions.
119 CPPFLAGS-s_lib_version.c
:= -D_POSIX_MODE
121 # We don't want the fdlibm code to use the inline math functions,
122 # only the fdlibm code.
123 CPPFLAGS
+= -D__NO_MATH_INLINES
-D__LIBC_INTERNAL_MATH_INLINES
125 # Using omit-long-double-fcts is only a temporary hack.
126 ifneq ($(omit-long-double-fcts
),yes
)
127 ifneq ($(long-double-fcts
),yes
)
128 # The `double' and `long double' types are the same on this machine.
129 # We won't compile the `long double' code at all. Tell the `double' code
130 # to define aliases for the `FUNCl' names. To avoid type conflicts in
131 # defining those aliases, tell <math.h> to declare the `FUNCl' names with
132 # `double' instead of `long double'.
133 CPPFLAGS
+= -DNO_LONG_DOUBLE
-D_Mlong_double_
=double
137 # The fdlibm code generates a lot of these warnings but is otherwise clean.
138 override CFLAGS
+= -Wno-uninitialized
-Wno-write-strings
140 # The -lieee library is actually an object file.
141 # The module just defines the _LIB_VERSION_ variable.
142 # It's not a library to make sure it is linked in instead of s_lib_version.o.
143 $(objpfx
)libieee.a
: $(objpfx
)ieee-math.o
147 ifeq ($(build-shared
),yes
)
148 $(addprefix $(objpfx
),$(tests
)): $(objpfx
)libm.so
$(libm.so-version
)
150 $(addprefix $(objpfx
),$(tests
)): $(objpfx
)libm.a
153 # Depend on libc.so so a DT_NEEDED is generated in the shared objects.
154 # This ensures they will load libc.so for needed symbols if loaded by
155 # a statically-linked program that hasn't already loaded it.
156 $(objpfx
)libm.so
: $(common-objpfx
)libc.so