math/Makefile

   1 # Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
   2 # This file is part of the GNU C Library.
   3
   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.
   8
   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.
  13
  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.
  18
  19 # Makefile for the math library.
  20
  21 subdir          := math
  22
  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
  27
  28 # Internal header files.
  29 distribute      := math_ldbl.h math_private.h machine/asm.h
  30
  31 # FPU support code.
  32 aux             := setfpucw fpu_control
  33
  34 # Build the -lm library.
  35
  36 extra-libs      := libm
  37 extra-libs-others = $(extra-libs)
  38
  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       \
  43                fegetexcept
  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_copysign s_cos s_erf s_expm1 s_fabs s_finite      \
  49              s_floor s_frexp s_ilogb s_ldexp s_log1p s_logb             \
  50              s_modf s_nextafter s_nexttoward s_rint s_scalbn 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_signbit s_fpclassify s_fmax s_fmin s_fdim s_nan s_trunc  \
  56              s_remquo s_log2 s_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
  61 libm-routines = $(strip $(libm-support) $(libm-calls) \
  62                         $(patsubst %_rf,%f_r,$(libm-calls:=f))  \
  63                         $(long-m-$(long-double-fcts)))
  64 long-m-routines = $(patsubst %_rl,%l_r,$(libm-calls:=l))
  65 long-m-support = t_sincosl k_sincosl
  66 long-m-yes = $(long-m-routines) $(long-m-support)
  67 distribute += $(long-m-yes:=.c)
  68
  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 \
  73         s_signbit
  74 routines = $(calls) $(calls:=f) $(long-c-$(long-double-fcts))
  75 long-c-yes = $(calls:=l)
  76 distribute += $(long-c-yes:=.c)
  77
  78 include ../Makeconfig
  79
  80 # Rules for the test suite.
  81 tests = test-matherr test-fenv atest-exp atest-sincos atest-exp2 basic-test
  82 # We do the `long double' tests only if this data type is available and
  83 # distinct from `double'.
  84 test-longdouble-yes = test-ldouble test-ildoubl
  85
  86 ifneq (no,$(PERL))
  87 libm-tests = test-float test-double $(test-longdouble-$(long-double-fcts)) \
  88         test-ifloat test-idouble
  89 libm-tests.o = $(addsuffix .o,$(libm-tests))
  90
  91 tests += $(libm-tests)
  92 libm-tests-generated = libm-test-ulps.h libm-test.c
  93 generated += $(libm-tests-generated) libm-test.stmp
  94
  95 # This is needed for dependencies
  96 before-compile += $(objpfx)libm-test.c
  97
  98 ulps-file = $(firstword $(wildcard $(config-sysdirs:%=$(..)%/libm-test-ulps)))
  99
 100 $(addprefix $(objpfx), $(libm-tests-generated)): $(objpfx)libm-test.stmp
 101
 102 $(objpfx)libm-test.stmp: $(ulps-file) libm-test.inc gen-libm-test.pl
 103         $(make-target-directory)
 104         $(PERL) gen-libm-test.pl -u $< -o "$(objpfx)"
 105         @echo > $@
 106
 107 $(objpfx)test-float.o: $(objpfx)libm-test.stmp
 108 $(objpfx)test-ifloat.o: $(objpfx)libm-test.stmp
 109 $(objpfx)test-double.o: $(objpfx)libm-test.stmp
 110 $(objpfx)test-idouble.o: $(objpfx)libm-test.stmp
 111 $(objpfx)test-ldouble.o: $(objpfx)libm-test.stmp
 112 $(objpfx)test-ildoubl.o: $(objpfx)libm-test.stmp
 113 endif
 114
 115 CFLAGS-test-float.c = -fno-inline -ffloat-store
 116 CFLAGS-test-double.c = -fno-inline -ffloat-store
 117 CFLAGS-test-ldouble.c = -fno-inline -ffloat-store
 118 CFLAGS-test-ifloat.c = -U__LIBC_INTERNAL_MATH_INLINES
 119 CFLAGS-test-idouble.c = -U__LIBC_INTERNAL_MATH_INLINES
 120 CFLAGS-test-ildoubl.c = -U__LIBC_INTERNAL_MATH_INLINES
 121 LDLIBS-test-ifloat = math/libm
 122 LDLIBS-test-idouble = math/libm
 123 LDLIBS-test-ildoubl = math/libm
 124 LDLIBS-test-float = math/libm
 125 LDLIBS-test-double = math/libm
 126 LDLIBS-test-ldouble = math/libm
 127 LDLIBS-test-matherr = math/libm
 128 LDLIBS-test-reduce = math/libm
 129 LDLIBS-atest-exp = math/libm
 130 LDLIBS-atest-sincos = math/libm
 131 LDLIBS-atest-exp2 = math/libm
 132
 133 distribute += libm-test.inc gen-libm-test.pl
 134
 135
 136 # The -lieee module sets the _LIB_VERSION_ switch to IEEE mode
 137 # for error handling in the -lm functions.
 138 install-lib += libieee.a
 139 non-lib.a += libieee.a
 140 extra-objs += libieee.a ieee-math.o
 141 distribute += ieee-math.c
 142
 143 include ../Rules
 144
 145
 146 # This file defines the default _LIB_VERSION variable that controls
 147 # the error return conventions for the math functions.
 148 CPPFLAGS-s_lib_version.c := -D_POSIX_MODE
 149
 150 # We don't want the fdlibm code to use the inline math functions,
 151 # only the fdlibm code.
 152 CPPFLAGS += -D__NO_MATH_INLINES -D__LIBC_INTERNAL_MATH_INLINES
 153
 154 # Using omit-long-double-fcts is only a temporary hack.
 155 ifneq ($(omit-long-double-fcts),yes)
 156 ifneq ($(long-double-fcts),yes)
 157 # The `double' and `long double' types are the same on this machine.
 158 # We won't compile the `long double' code at all.  Tell the `double' code
 159 # to define aliases for the `FUNCl' names.  To avoid type conflicts in
 160 # defining those aliases, tell <math.h> to declare the `FUNCl' names with
 161 # `double' instead of `long double'.
 162 CPPFLAGS += -DNO_LONG_DOUBLE -D_Mlong_double_=double
 163 endif
 164 endif
 165
 166 # The fdlibm code generates a lot of these warnings but is otherwise clean.
 167 override CFLAGS += -Wno-uninitialized -Wno-write-strings
 168
 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
 173         rm -f $@
 174         $(patsubst %/,cd % &&,$(objpfx)) \
 175         $(LN_S) $(<F) $(@F)
 176
 177 ifeq ($(build-shared),yes)
 178 $(addprefix $(objpfx),$(tests)): $(objpfx)libm.so$(libm.so-version)
 179 else
 180 $(addprefix $(objpfx),$(tests)): $(objpfx)libm.a
 181 endif
 182
 183 ifeq ($(build-static),yes)
 184 o = .o
 185 else
 186 o = .os
 187 endif
 188 gmp-objs = $(patsubst %,$(common-objpfx)stdlib/%$o,\
 189                       add_n sub_n cmp addmul_1 mul_1 mul_n divmod_1 \
 190                       lshift rshift mp_clz_tab udiv_qrnnd inlines)
 191 $(objpfx)atest-exp: $(gmp-objs)
 192 $(objpfx)atest-sincos: $(gmp-objs)
 193 $(objpfx)atest-exp2: $(gmp-objs)
 194
 195 # Depend on libc.so so a DT_NEEDED is generated in the shared objects.
 196 # This ensures they will load libc.so for needed symbols if loaded by
 197 # a statically-linked program that hasn't already loaded it.
 198 $(objpfx)libm.so: $(common-objpfx)libc.so