1 # Copyright (C) 1996-2006,2011,2012 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, see
16 # <http://www.gnu.org/licenses/>.
18 # Makefile for the math library.
22 # Installed header files.
23 headers
:= math.h bits
/mathcalls.h bits
/mathinline.h bits
/huge_val.h \
24 bits
/huge_valf.h bits
/huge_vall.h bits
/inf.h bits
/nan.h \
25 fpu_control.h complex.h bits
/cmathcalls.h fenv.h \
26 bits
/fenv.h bits
/fenvinline.h bits
/mathdef.h tgmath.h \
29 # Internal header files.
30 distribute
:= math_ldbl.h math_private.h machine
/asm.h
33 aux
:= setfpucw fpu_control
35 # Build the -lm library.
38 extra-libs-others
= $(extra-libs
)
40 libm-support
= k_standard s_lib_version s_matherr s_signgam \
41 fclrexcpt fgetexcptflg fraiseexcpt fsetexcptflg \
42 ftestexcept fegetround fesetround fegetenv feholdexcpt \
43 fesetenv feupdateenv t_exp fedisblxcpt feenablxcpt \
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_cos s_erf s_expm1 s_fabs \
50 s_floor s_ilogb s_log1p s_logb \
51 s_nextafter s_nexttoward s_rint 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_exp10 w_fmod \
54 w_tgamma 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_fpclassify s_fmax s_fmin s_fdim s_nan s_trunc \
57 s_remquo e_log2 e_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 e_exp10 w_log2 \
62 s_isinf_ns
$(calls
:s_
%=m_
%)
66 dbl-only-routines
:= branred doasin dosincos halfulp mpa mpatan2 \
67 mpatan mpexp mplog mpsqrt mptan sincos32 slowexp \
69 libm-routines
= $(strip $(libm-support
) $(libm-calls
) \
70 $(patsubst %_rf
,%f_r
,$(libm-calls
:=f
)) \
71 $(long-m-
$(long-double-fcts
))) \
73 long-m-routines
= $(patsubst %_rl
,%l_r
,$(libm-calls
:=l
))
74 long-m-support
= t_sincosl k_sincosl
75 long-m-yes
= $(long-m-routines
) $(long-m-support
)
77 # These functions are in libc instead of libm because __printf_fp
78 # calls them, so any program using printf will need them linked in,
79 # and we don't want to have to link every program with -lm.
80 # In libm-calls (above), list m_foo in place of s_foo for any
81 # routine that should be compiled separately for its libc and libm versions.
82 calls
= s_isinf s_isnan s_finite s_copysign s_modf s_scalbn s_frexp s_ldexp \
84 generated
+= $(foreach s
,.c .S l.c l.S f.c f.S
,$(calls
:s_
%=m_
%$s))
85 routines
= $(calls
) $(calls
:=f
) $(long-c-
$(long-double-fcts
))
86 long-c-yes
= $(calls
:=l
)
87 distribute
+= $(filter-out $(generated
),$(long-m-yes
:=.c
) $(long-c-yes
:=.c
))
89 # Rules for the test suite.
90 tests
= test-matherr test-fenv atest-exp atest-sincos atest-exp2 basic-test \
91 test-misc test-fpucw tst-definitions test-tgmath test-tgmath-ret \
92 bug-nextafter bug-nexttoward bug-tgmath1 test-tgmath-int \
93 test-tgmath2 test-powl tst-CMPLX tst-CMPLX2
94 # We do the `long double' tests only if this data type is available and
95 # distinct from `double'.
96 test-longdouble-yes
= test-ldouble test-ildoubl
97 distribute
+= $(test-longdouble-yes
:=.c
)
100 libm-tests
= test-float test-double
$(test-longdouble-
$(long-double-fcts
)) \
101 test-ifloat test-idouble
102 libm-tests.o
= $(addsuffix .o
,$(libm-tests
))
104 tests
+= $(libm-tests
)
105 libm-tests-generated
= libm-test-ulps.h libm-test.c
106 generated
+= $(libm-tests-generated
) libm-test.stmp
108 # This is needed for dependencies
109 before-compile
+= $(objpfx
)libm-test.c
111 ulps-file
= $(firstword $(wildcard $(sysdirs
:%=%/libm-test-ulps
)))
113 $(addprefix $(objpfx
), $(libm-tests-generated
)): $(objpfx
)libm-test.stmp
115 $(objpfx
)libm-test.stmp
: $(ulps-file
) libm-test.inc gen-libm-test.pl
116 $(make-target-directory
)
117 $(PERL
) gen-libm-test.pl
-u
$< -o
"$(objpfx)"
120 $(objpfx
)test-float.o
: $(objpfx
)libm-test.stmp
121 $(objpfx
)test-ifloat.o
: $(objpfx
)libm-test.stmp
122 $(objpfx
)test-double.o
: $(objpfx
)libm-test.stmp
123 $(objpfx
)test-idouble.o
: $(objpfx
)libm-test.stmp
124 $(objpfx
)test-ldouble.o
: $(objpfx
)libm-test.stmp
125 $(objpfx
)test-ildoubl.o
: $(objpfx
)libm-test.stmp
128 CFLAGS-test-float.c
= -fno-inline
-ffloat-store
-fno-builtin
129 CFLAGS-test-double.c
= -fno-inline
-ffloat-store
-fno-builtin
130 CFLAGS-test-ldouble.c
= -fno-inline
-ffloat-store
-fno-builtin
131 CFLAGS-test-tgmath.c
= -fno-builtin
132 CFLAGS-test-tgmath2.c
= -fno-builtin
133 CFLAGS-test-tgmath-ret.c
= -fno-builtin
134 CFLAGS-test-powl.c
= -fno-builtin
135 CPPFLAGS-test-ifloat.c
= -U__LIBC_INTERNAL_MATH_INLINES
-D__FAST_MATH__ \
136 -DTEST_FAST_MATH
-fno-builtin
137 CPPFLAGS-test-idouble.c
= -U__LIBC_INTERNAL_MATH_INLINES
-D__FAST_MATH__ \
138 -DTEST_FAST_MATH
-fno-builtin
139 CPPFLAGS-test-ildoubl.c
= -U__LIBC_INTERNAL_MATH_INLINES
-D__FAST_MATH__ \
140 -DTEST_FAST_MATH
-fno-builtin
142 distribute
+= libm-test.inc gen-libm-test.pl README.libm-test
145 # The -lieee module sets the _LIB_VERSION_ switch to IEEE mode
146 # for error handling in the -lm functions.
147 install-lib
+= libieee.a
148 non-lib.a
+= libieee.a
149 extra-objs
+= libieee.a ieee-math.o
150 distribute
+= ieee-math.c
155 # The generated sysd-rules file defines rules like this for sources
156 # coming from sysdeps/ directories. These rules find the generic sources.
157 define o-iterator-doit
158 $(objpfx
)m_
%$o: s_
%.c
$(before-compile
); $$(compile-command.c
)
160 object-suffixes-left
:= $(all-object-suffixes
)
161 include $(o-iterator
)
164 # This file defines the default _LIB_VERSION variable that controls
165 # the error return conventions for the math functions.
166 CPPFLAGS-s_lib_version.c
:= -D_POSIX_MODE
168 # We don't want the fdlibm code to use the inline math functions,
169 # only the fdlibm code.
170 math-CPPFLAGS
+= -D__NO_MATH_INLINES
-D__LIBC_INTERNAL_MATH_INLINES
172 ifneq ($(long-double-fcts
),yes
)
173 # The `double' and `long double' types are the same on this machine.
174 # We won't compile the `long double' code at all. Tell the `double' code
175 # to define aliases for the `FUNCl' names. To avoid type conflicts in
176 # defining those aliases, tell <math.h> to declare the `FUNCl' names with
177 # `double' instead of `long double'.
178 math-CPPFLAGS
+= -DNO_LONG_DOUBLE
-D_Mlong_double_
=double
181 # The fdlibm code generates a lot of these warnings but is otherwise clean.
182 override CFLAGS
+= -Wno-uninitialized
184 # The -lieee library is actually an object file.
185 # The module just defines the _LIB_VERSION_ variable.
186 # It's not a library to make sure it is linked in instead of s_lib_version.o.
187 $(objpfx
)libieee.a
: $(objpfx
)ieee-math.o
189 $(patsubst %/,cd
% &&,$(objpfx
)) \
192 ifeq ($(build-shared
),yes
)
193 $(addprefix $(objpfx
),$(tests
)): $(objpfx
)libm.so
$(libm.so-version
)
195 $(addprefix $(objpfx
),$(tests
)): $(objpfx
)libm.a
197 ifeq ($(build-bounded
),yes
)
198 $(tests
:%=$(objpfx
)%-bp
): $(objpfx
)libm_b.a
201 gmp-objs
= $(patsubst %,$(common-objpfx
)stdlib
/%.o
,\
202 add_n sub_n cmp addmul_1 mul_1 mul_n divmod_1 \
203 lshift rshift mp_clz_tab udiv_qrnnd inlines
)
204 $(objpfx
)atest-exp
: $(gmp-objs
)
205 $(objpfx
)atest-sincos
: $(gmp-objs
)
206 $(objpfx
)atest-exp2
: $(gmp-objs
)
208 # Depend on libc.so so a DT_NEEDED is generated in the shared objects.
209 # This ensures they will load libc.so for needed symbols if loaded by
210 # a statically-linked program that hasn't already loaded it.
211 $(objpfx
)libm.so
: $(common-objpfx
)libc.so
$(common-objpfx
)libc_nonshared.a