1 # Copyright (C) 1996-2001, 2002 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 Lesser General Public
6 # License as published by the Free Software Foundation; either
7 # version 2.1 of the 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 # Lesser General Public License for more details.
14 # You should have received a copy of the GNU Lesser General Public
15 # License along with the GNU C Library; if not, write to the Free
16 # Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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
/fenvinline.h bits
/mathdef.h tgmath.h
28 # Internal header files.
29 distribute
:= math_ldbl.h math_private.h machine
/asm.h
32 aux
:= setfpucw fpu_control
34 # Build the -lm library.
37 extra-libs-others
= $(extra-libs
)
39 libm-support
= k_standard s_lib_version s_matherr s_signgam \
40 fclrexcpt fgetexcptflg fraiseexcpt fsetexcptflg \
41 ftestexcept fegetround fesetround fegetenv feholdexcpt \
42 fesetenv feupdateenv t_exp fedisblxcpt feenablxcpt \
44 libm-calls
= e_acos e_acosh e_asin e_atan2 e_atanh e_cosh e_exp e_fmod \
45 e_hypot e_j0 e_j1 e_jn e_lgamma_r e_log e_log10 e_pow \
46 e_rem_pio2 e_remainder e_scalb e_sinh e_sqrt e_gamma_r \
47 k_cos k_rem_pio2 k_sin k_tan s_asinh s_atan s_cbrt \
48 s_ceil s_cos s_erf s_expm1 s_fabs \
49 s_floor s_ilogb s_log1p s_logb \
50 s_nextafter s_nexttoward s_rint s_scalbln \
51 s_significand s_sin s_tan s_tanh w_acos w_acosh w_asin \
52 w_atan2 w_atanh w_cosh w_drem w_exp w_exp2 w_exp10 w_fmod \
53 w_tgamma w_hypot w_j0 w_j1 w_jn w_lgamma w_lgamma_r \
54 w_log w_log10 w_pow w_remainder w_scalb w_sinh w_sqrt \
55 s_fpclassify s_fmax s_fmin s_fdim s_nan s_trunc \
56 s_remquo e_log2 e_exp2 s_round s_nearbyint s_sincos \
57 conj cimag creal cabs carg s_cexp s_csinh s_ccosh s_clog \
58 s_catan s_casin s_ccos s_csin s_ctan s_ctanh s_cacos \
59 s_casinh s_cacosh s_catanh s_csqrt s_cpow s_cproj s_clog10 \
60 s_fma s_lrint s_llrint s_lround s_llround e_exp10 w_log2 \
62 generated
+= $(foreach s
,.c .S l.c l.S f.c f.S
,$(calls
:s_
%=m_
%$s))
63 dbl-only-routines
:= branred doasin dosincos halfulp mpa mpatan2 \
64 mpatan mpexp mplog mpsqrt mptan sincos32 slowexp \
66 libm-routines
= $(strip $(libm-support
) $(libm-calls
) \
67 $(patsubst %_rf
,%f_r
,$(libm-calls
:=f
)) \
68 $(long-m-
$(long-double-fcts
))) \
70 long-m-routines
= $(patsubst %_rl
,%l_r
,$(libm-calls
:=l
))
71 long-m-support
= t_sincosl k_sincosl
72 long-m-yes
= $(long-m-routines
) $(long-m-support
)
73 distribute
+= $(long-m-yes
:=.c
)
75 # These functions are in libc instead of libm because __printf_fp
76 # calls them, so any program using printf will need them linked in,
77 # and we don't want to have to link every program with -lm.
78 # In libm-calls (above), list m_foo in place of s_foo for any
79 # routine that should be compiled separately for its libc and libm versions.
80 calls
= s_isinf s_isnan s_finite s_copysign s_modf s_scalbn s_frexp s_ldexp \
82 routines
= $(calls
) $(calls
:=f
) $(long-c-
$(long-double-fcts
))
83 long-c-yes
= $(calls
:=l
)
84 distribute
+= $(long-c-yes
:=.c
)
88 # Rules for the test suite.
89 tests
= test-matherr test-fenv atest-exp atest-sincos atest-exp2 basic-test \
90 test-misc test-fpucw tst-definitions test-tgmath
91 # We do the `long double' tests only if this data type is available and
92 # distinct from `double'.
93 test-longdouble-yes
= test-ldouble test-ildoubl
94 distribute
+= $(test-longdouble-yes
:=.c
)
97 libm-tests
= test-float test-double
$(test-longdouble-
$(long-double-fcts
)) \
98 test-ifloat test-idouble
99 libm-tests.o
= $(addsuffix .o
,$(libm-tests
))
101 tests
+= $(libm-tests
)
102 libm-tests-generated
= libm-test-ulps.h libm-test.c
103 generated
+= $(libm-tests-generated
) libm-test.stmp
105 # This is needed for dependencies
106 before-compile
+= $(objpfx
)libm-test.c
108 ulps-file
= $(firstword $(wildcard $(config-sysdirs
:%=$(..
)%/libm-test-ulps
)))
110 $(addprefix $(objpfx
), $(libm-tests-generated
)): $(objpfx
)libm-test.stmp
112 $(objpfx
)libm-test.stmp
: $(ulps-file
) libm-test.inc gen-libm-test.pl
113 $(make-target-directory
)
114 $(PERL
) gen-libm-test.pl
-u
$< -o
"$(objpfx)"
117 $(objpfx
)test-float.o
: $(objpfx
)libm-test.stmp
118 $(objpfx
)test-ifloat.o
: $(objpfx
)libm-test.stmp
119 $(objpfx
)test-double.o
: $(objpfx
)libm-test.stmp
120 $(objpfx
)test-idouble.o
: $(objpfx
)libm-test.stmp
121 $(objpfx
)test-ldouble.o
: $(objpfx
)libm-test.stmp
122 $(objpfx
)test-ildoubl.o
: $(objpfx
)libm-test.stmp
125 CFLAGS-test-float.c
= -fno-inline
-ffloat-store
126 CFLAGS-test-double.c
= -fno-inline
-ffloat-store
127 CFLAGS-test-ldouble.c
= -fno-inline
-ffloat-store
128 CFLAGS-test-tgmath.c
= -fno-builtin
129 CPPFLAGS-test-ifloat.c
= -U__LIBC_INTERNAL_MATH_INLINES
-D__FAST_MATH__ \
131 CPPFLAGS-test-idouble.c
= -U__LIBC_INTERNAL_MATH_INLINES
-D__FAST_MATH__ \
133 CPPFLAGS-test-ildoubl.c
= -U__LIBC_INTERNAL_MATH_INLINES
-D__FAST_MATH__ \
136 distribute
+= libm-test.inc gen-libm-test.pl README.libm-test
139 # The -lieee module sets the _LIB_VERSION_ switch to IEEE mode
140 # for error handling in the -lm functions.
141 install-lib
+= libieee.a
142 non-lib.a
+= libieee.a
143 extra-objs
+= libieee.a ieee-math.o
144 distribute
+= ieee-math.c
149 # This file defines the default _LIB_VERSION variable that controls
150 # the error return conventions for the math functions.
151 CPPFLAGS-s_lib_version.c
:= -D_POSIX_MODE
153 # We don't want the fdlibm code to use the inline math functions,
154 # only the fdlibm code.
155 math-CPPFLAGS
+= -D__NO_MATH_INLINES
-D__LIBC_INTERNAL_MATH_INLINES
157 ifneq ($(long-double-fcts
),yes
)
158 # The `double' and `long double' types are the same on this machine.
159 # We won't compile the `long double' code at all. Tell the `double' code
160 # to define aliases for the `FUNCl' names. To avoid type conflicts in
161 # defining those aliases, tell <math.h> to declare the `FUNCl' names with
162 # `double' instead of `long double'.
163 math-CPPFLAGS
+= -DNO_LONG_DOUBLE
-D_Mlong_double_
=double
166 # The fdlibm code generates a lot of these warnings but is otherwise clean.
167 override CFLAGS
+= -Wno-uninitialized
169 # The -lieee library is actually an object file.
170 # The module just defines the _LIB_VERSION_ variable.
171 # It's not a library to make sure it is linked in instead of s_lib_version.o.
172 $(objpfx
)libieee.a
: $(objpfx
)ieee-math.o
174 $(patsubst %/,cd
% &&,$(objpfx
)) \
177 ifeq ($(build-shared
),yes
)
178 $(addprefix $(objpfx
),$(tests
)): $(objpfx
)libm.so
$(libm.so-version
)
180 $(addprefix $(objpfx
),$(tests
)): $(objpfx
)libm.a
182 ifeq ($(build-bounded
),yes
)
183 $(tests
:%=$(objpfx
)%-bp
): $(objpfx
)libm_b.a
186 ifeq ($(build-static
),yes
)
191 gmp-objs
= $(patsubst %,$(common-objpfx
)stdlib
/%$o,\
192 add_n sub_n cmp addmul_1 mul_1 mul_n divmod_1 \
193 lshift rshift mp_clz_tab udiv_qrnnd inlines
)
194 $(objpfx
)atest-exp
: $(gmp-objs
)
195 $(objpfx
)atest-sincos
: $(gmp-objs
)
196 $(objpfx
)atest-exp2
: $(gmp-objs
)
198 # Depend on libc.so so a DT_NEEDED is generated in the shared objects.
199 # This ensures they will load libc.so for needed symbols if loaded by
200 # a statically-linked program that hasn't already loaded it.
201 $(objpfx
)libm.so
: $(common-objpfx
)libc.so
$(common-objpfx
)libc_nonshared.a