1 # Copyright (C) 1996-2015 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.
24 # Installed header files.
25 headers
:= math.h bits
/mathcalls.h bits
/mathinline.h bits
/huge_val.h \
26 bits
/huge_valf.h bits
/huge_vall.h bits
/inf.h bits
/nan.h \
27 fpu_control.h complex.h bits
/cmathcalls.h fenv.h \
28 bits
/fenv.h bits
/fenvinline.h bits
/mathdef.h tgmath.h \
32 aux
:= setfpucw fpu_control
34 # Build the -lm library.
37 extra-libs-others
= $(extra-libs
)
39 libm-support
= 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 \
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_log1p s_logb \
51 s_nextafter s_nexttoward s_rint s_scalbln w_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 \
57 s_fpclassify s_fmax s_fmin s_fdim s_nan s_trunc \
58 s_remquo e_log2 e_exp2 s_round s_nearbyint s_sincos \
59 conj cimag creal cabs carg s_cexp s_csinh s_ccosh s_clog \
60 s_catan s_casin s_ccos s_csin s_ctan s_ctanh s_cacos \
61 s_casinh s_cacosh s_catanh s_csqrt s_cpow s_cproj s_clog10 \
62 s_fma s_lrint s_llrint s_lround s_llround e_exp10 w_log2 \
63 s_isinf_ns s_issignaling
$(calls
:s_
%=m_
%) x2y2m1 k_casinh \
64 gamma_product k_standard
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
)
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 test-fpucw-ieee tst-definitions test-tgmath \
91 test-tgmath-ret bug-nextafter bug-nexttoward bug-tgmath1 \
92 test-tgmath-int test-tgmath2 test-powl tst-CMPLX tst-CMPLX2 test-snan \
93 test-fenv-tls test-fenv-preserve test-fenv-return
$(tests-static
)
94 tests-static
= test-fpucw-static test-fpucw-ieee-static
95 # We do the `long double' tests only if this data type is available and
96 # distinct from `double'.
97 test-longdouble-yes
= test-ldouble test-ildoubl
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 \
117 $(make-target-directory
)
118 $(PERL
) gen-libm-test.pl
-u
$< -o
"$(objpfx)"
121 $(objpfx
)test-float.o
: $(objpfx
)libm-test.stmp
122 $(objpfx
)test-ifloat.o
: $(objpfx
)libm-test.stmp
123 $(objpfx
)test-double.o
: $(objpfx
)libm-test.stmp
124 $(objpfx
)test-idouble.o
: $(objpfx
)libm-test.stmp
125 $(objpfx
)test-ldouble.o
: $(objpfx
)libm-test.stmp
126 $(objpfx
)test-ildoubl.o
: $(objpfx
)libm-test.stmp
129 CFLAGS-test-float.c
= -fno-inline
-ffloat-store
-fno-builtin
130 CFLAGS-test-double.c
= -fno-inline
-ffloat-store
-fno-builtin
131 CFLAGS-test-ldouble.c
= -fno-inline
-ffloat-store
-fno-builtin
132 CFLAGS-test-tgmath.c
= -fno-builtin
133 # The following testcase uses very long lines (>3 million), so it may take a
134 # while to compile it. See: http://llvm.org/bugs/show_bug.cgi?id=14106 and
135 # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54402
136 CFLAGS-test-tgmath2.c
= -fno-builtin
137 CFLAGS-test-tgmath-ret.c
= -fno-builtin
138 CFLAGS-test-powl.c
= -fno-builtin
139 CPPFLAGS-test-ifloat.c
= -U__LIBC_INTERNAL_MATH_INLINES
-D__FAST_MATH__ \
140 -DTEST_FAST_MATH
-fno-builtin
141 CPPFLAGS-test-idouble.c
= -U__LIBC_INTERNAL_MATH_INLINES
-D__FAST_MATH__ \
142 -DTEST_FAST_MATH
-fno-builtin
143 CPPFLAGS-test-ildoubl.c
= -U__LIBC_INTERNAL_MATH_INLINES
-D__FAST_MATH__ \
144 -DTEST_FAST_MATH
-fno-builtin
147 # The -lieee module sets the _LIB_VERSION_ switch to IEEE mode
148 # for error handling in the -lm functions.
149 install-lib
+= libieee.a
150 non-lib.a
+= libieee.a
151 extra-objs
+= libieee.a ieee-math.o
156 # Run the math programs to automatically generate ULPs files.
159 run-regen-ulps
= $(test-wrapper-env
) \
161 $($*-ENV
) $(rtld-prefix
) $${run}
163 regen-ulps
: $(addprefix $(objpfx
),$(libm-tests
))
164 rm -f
$(objpfx
)ULPs
; rm -f
$(objpfx
)NewUlps
; \
165 cp
$(ulps-file
) $(objpfx
)libm-test-ulps
; \
167 echo
"Regenerating ULPs for $${run}"; \
168 $(run-regen-ulps
) -u
-o
$(objpfx
); \
169 cat
$(objpfx
)ULPs
>> $(objpfx
)libm-test-ulps
; \
172 $(PERL
) gen-libm-test.pl
-o
$(objpfx
) -n
-u
$(objpfx
)libm-test-ulps
; \
173 echo
"Automatic regeneration of ULPs complete."; \
174 echo
"Difference between the current baseline and the new baseline is:";\
175 diff
-urN
$(ulps-file
) $(objpfx
)NewUlps
; \
176 echo
"Copy $(objpfx)NewUlps to $(ulps-file) (relative to source)."
179 @echo
"Automatic regeneration of ULPs requires perl."; \
183 # The generated sysd-rules file defines rules like this for sources
184 # coming from sysdeps/ directories. These rules find the generic sources.
185 define o-iterator-doit
186 $(objpfx
)m_
%$o: s_
%.c
$(before-compile
); $$(compile-command.c
)
188 object-suffixes-left
:= $(all-object-suffixes
)
189 include $(o-iterator
)
192 # This file defines the default _LIB_VERSION variable that controls
193 # the error return conventions for the math functions.
194 CPPFLAGS-s_lib_version.c
:= -D_POSIX_MODE
196 # We don't want the fdlibm code to use the inline math functions,
197 # only the fdlibm code.
198 math-CPPFLAGS
+= -D__NO_MATH_INLINES
-D__LIBC_INTERNAL_MATH_INLINES
200 ifneq ($(long-double-fcts
),yes
)
201 # The `double' and `long double' types are the same on this machine.
202 # We won't compile the `long double' code at all. Tell the `double' code
203 # to define aliases for the `FUNCl' names. To avoid type conflicts in
204 # defining those aliases, tell <math.h> to declare the `FUNCl' names with
205 # `double' instead of `long double'.
206 math-CPPFLAGS
+= -DNO_LONG_DOUBLE
-D_Mlong_double_
=double
209 # The fdlibm code generates a lot of these warnings but is otherwise clean.
210 override CFLAGS
+= -Wno-uninitialized
212 # The -lieee library is actually an object file.
213 # The module just defines the _LIB_VERSION_ variable.
214 # It's not a library to make sure it is linked in instead of s_lib_version.o.
215 $(objpfx
)libieee.a
: $(objpfx
)ieee-math.o
217 $(patsubst %/,cd
% &&,$(objpfx
)) \
220 $(addprefix $(objpfx
),$(filter-out $(tests-static
),$(tests
))): $(libm
)
221 $(addprefix $(objpfx
),$(tests-static
)): $(objpfx
)libm.a
223 gmp-objs
= $(patsubst %,$(common-objpfx
)stdlib
/%.o
,\
224 add_n sub_n cmp addmul_1 mul_1 mul_n divmod_1 \
225 lshift rshift mp_clz_tab udiv_qrnnd inlines \
226 $(gmp-sysdep_routines
))
227 $(objpfx
)atest-exp
: $(gmp-objs
)
228 $(objpfx
)atest-sincos
: $(gmp-objs
)
229 $(objpfx
)atest-exp2
: $(gmp-objs
)
230 $(objpfx
)test-fenv-tls
: $(shared-thread-library
)