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[glibc/history.git] / math / Makefile
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1 # Copyright (C) 1996-2001,2002,2003,2004,2005,2006
2 # Free Software Foundation, Inc.
3 # This file is part of the GNU C Library.
5 # The GNU C Library is free software; you can redistribute it and/or
6 # modify it under the terms of the GNU Lesser General Public
7 # License as published by the Free Software Foundation; either
8 # version 2.1 of the License, or (at your option) any later version.
10 # The GNU C Library is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # Lesser General Public License for more details.
15 # You should have received a copy of the GNU Lesser General Public
16 # License along with the GNU C Library; if not, write to the Free
17 # Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 # 02111-1307 USA.
20 # Makefile for the math library.
22 subdir := math
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
30 # Internal header files.
31 distribute := math_ldbl.h math_private.h machine/asm.h
33 # FPU support code.
34 aux := setfpucw fpu_control
36 # Build the -lm library.
38 extra-libs := libm
39 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 fedisblxcpt feenablxcpt \
45 fegetexcept
46 libm-calls = e_acos e_acosh e_asin e_atan2 e_atanh e_cosh e_exp e_fmod \
47 e_hypot e_j0 e_j1 e_jn e_lgamma_r e_log e_log10 e_pow \
48 e_rem_pio2 e_remainder e_scalb e_sinh e_sqrt e_gamma_r \
49 k_cos k_rem_pio2 k_sin k_tan s_asinh s_atan s_cbrt \
50 s_ceil s_cos s_erf s_expm1 s_fabs \
51 s_floor s_ilogb s_log1p s_logb \
52 s_nextafter s_nexttoward s_rint s_scalbln \
53 s_significand s_sin s_tan s_tanh w_acos w_acosh w_asin \
54 w_atan2 w_atanh w_cosh w_drem w_exp w_exp2 w_exp10 w_fmod \
55 w_tgamma w_hypot w_j0 w_j1 w_jn w_lgamma w_lgamma_r \
56 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 $(calls:s_%=m_%)
65 include ../Makeconfig
67 dbl-only-routines := branred doasin dosincos halfulp mpa mpatan2 \
68 mpatan mpexp mplog mpsqrt mptan sincos32 slowexp \
69 slowpow
70 libm-routines = $(strip $(libm-support) $(libm-calls) \
71 $(patsubst %_rf,%f_r,$(libm-calls:=f)) \
72 $(long-m-$(long-double-fcts))) \
73 $(dbl-only-routines)
74 long-m-routines = $(patsubst %_rl,%l_r,$(libm-calls:=l))
75 long-m-support = t_sincosl k_sincosl
76 long-m-yes = $(long-m-routines) $(long-m-support)
78 # These functions are in libc instead of libm because __printf_fp
79 # calls them, so any program using printf will need them linked in,
80 # and we don't want to have to link every program with -lm.
81 # In libm-calls (above), list m_foo in place of s_foo for any
82 # routine that should be compiled separately for its libc and libm versions.
83 calls = s_isinf s_isnan s_finite s_copysign s_modf s_scalbn s_frexp s_ldexp \
84 s_signbit
85 generated += $(foreach s,.c .S l.c l.S f.c f.S,$(calls:s_%=m_%$s))
86 routines = $(calls) $(calls:=f) $(long-c-$(long-double-fcts))
87 long-c-yes = $(calls:=l)
88 distribute += $(filter-out $(generated),$(long-m-yes:=.c) $(long-c-yes:=.c))
90 # Rules for the test suite.
91 tests = test-matherr test-fenv atest-exp atest-sincos atest-exp2 basic-test \
92 test-misc test-fpucw tst-definitions test-tgmath test-tgmath-ret \
93 bug-nextafter bug-nexttoward bug-tgmath1 test-tgmath-int test-tgmath2
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 += $(test-longdouble-yes:=.c)
99 ifneq (no,$(PERL))
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)"
118 @echo > $@
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
126 endif
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 CPPFLAGS-test-ifloat.c = -U__LIBC_INTERNAL_MATH_INLINES -D__FAST_MATH__ \
135 -DTEST_FAST_MATH -fno-builtin
136 CPPFLAGS-test-idouble.c = -U__LIBC_INTERNAL_MATH_INLINES -D__FAST_MATH__ \
137 -DTEST_FAST_MATH -fno-builtin
138 CPPFLAGS-test-ildoubl.c = -U__LIBC_INTERNAL_MATH_INLINES -D__FAST_MATH__ \
139 -DTEST_FAST_MATH -fno-builtin
141 distribute += libm-test.inc gen-libm-test.pl README.libm-test
144 # The -lieee module sets the _LIB_VERSION_ switch to IEEE mode
145 # for error handling in the -lm functions.
146 install-lib += libieee.a
147 non-lib.a += libieee.a
148 extra-objs += libieee.a ieee-math.o
149 distribute += ieee-math.c
151 include ../Rules
154 # The generated sysd-rules file defines rules like this for sources
155 # coming from sysdeps/ directories. These rules find the generic sources.
156 define o-iterator-doit
157 $(objpfx)m_%$o: s_%.c $(before-compile); $$(compile-command.c)
158 endef
159 object-suffixes-left := $(all-object-suffixes)
160 include $(o-iterator)
163 # This file defines the default _LIB_VERSION variable that controls
164 # the error return conventions for the math functions.
165 CPPFLAGS-s_lib_version.c := -D_POSIX_MODE
167 # We don't want the fdlibm code to use the inline math functions,
168 # only the fdlibm code.
169 math-CPPFLAGS += -D__NO_MATH_INLINES -D__LIBC_INTERNAL_MATH_INLINES
171 ifneq ($(long-double-fcts),yes)
172 # The `double' and `long double' types are the same on this machine.
173 # We won't compile the `long double' code at all. Tell the `double' code
174 # to define aliases for the `FUNCl' names. To avoid type conflicts in
175 # defining those aliases, tell <math.h> to declare the `FUNCl' names with
176 # `double' instead of `long double'.
177 math-CPPFLAGS += -DNO_LONG_DOUBLE -D_Mlong_double_=double
178 endif
180 # The fdlibm code generates a lot of these warnings but is otherwise clean.
181 override CFLAGS += -Wno-uninitialized
183 # The -lieee library is actually an object file.
184 # The module just defines the _LIB_VERSION_ variable.
185 # It's not a library to make sure it is linked in instead of s_lib_version.o.
186 $(objpfx)libieee.a: $(objpfx)ieee-math.o
187 rm -f $@
188 $(patsubst %/,cd % &&,$(objpfx)) \
189 $(LN_S) $(<F) $(@F)
191 ifeq ($(build-shared),yes)
192 $(addprefix $(objpfx),$(tests)): $(objpfx)libm.so$(libm.so-version)
193 else
194 $(addprefix $(objpfx),$(tests)): $(objpfx)libm.a
195 endif
196 ifeq ($(build-bounded),yes)
197 $(tests:%=$(objpfx)%-bp): $(objpfx)libm_b.a
198 endif
200 ifeq ($(build-static),yes)
201 o = .o
202 else
203 o = .os
204 endif
205 gmp-objs = $(patsubst %,$(common-objpfx)stdlib/%$o,\
206 add_n sub_n cmp addmul_1 mul_1 mul_n divmod_1 \
207 lshift rshift mp_clz_tab udiv_qrnnd inlines)
208 $(objpfx)atest-exp: $(gmp-objs)
209 $(objpfx)atest-sincos: $(gmp-objs)
210 $(objpfx)atest-exp2: $(gmp-objs)
212 # Depend on libc.so so a DT_NEEDED is generated in the shared objects.
213 # This ensures they will load libc.so for needed symbols if loaded by
214 # a statically-linked program that hasn't already loaded it.
215 $(objpfx)libm.so: $(common-objpfx)libc.so $(common-objpfx)libc_nonshared.a