math/Makefile

   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.
   4
   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.
   9
  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.
  14
  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.
  19
  20 # Makefile for the math library.
  21
  22 subdir          := math
  23
  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
  29
  30 # Internal header files.
  31 distribute      := math_ldbl.h math_private.h machine/asm.h
  32
  33 # FPU support code.
  34 aux             := setfpucw fpu_control
  35
  36 # Build the -lm library.
  37
  38 extra-libs      := libm
  39 extra-libs-others = $(extra-libs)
  40
  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_%)
  64
  65 include ../Makeconfig
  66
  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)
  77
  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))
  89
  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 += $(test-longdouble-yes:=.c)
  98
  99 ifneq (no,$(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))
 103
 104 tests += $(libm-tests)
 105 libm-tests-generated = libm-test-ulps.h libm-test.c
 106 generated += $(libm-tests-generated) libm-test.stmp
 107
 108 # This is needed for dependencies
 109 before-compile += $(objpfx)libm-test.c
 110
 111 ulps-file = $(firstword $(wildcard $(sysdirs:%=%/libm-test-ulps)))
 112
 113 $(addprefix $(objpfx), $(libm-tests-generated)): $(objpfx)libm-test.stmp
 114
 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 > $@
 119
 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
 127
 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
 140
 141 distribute += libm-test.inc gen-libm-test.pl README.libm-test
 142
 143
 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
 150
 151 include ../Rules
 152
 153
 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 $(o-iterator)
 161
 162
 163 # This file defines the default _LIB_VERSION variable that controls
 164 # the error return conventions for the math functions.
 165 CPPFLAGS-s_lib_version.c := -D_POSIX_MODE
 166
 167 # We don't want the fdlibm code to use the inline math functions,
 168 # only the fdlibm code.
 169 math-CPPFLAGS += -D__NO_MATH_INLINES -D__LIBC_INTERNAL_MATH_INLINES
 170
 171 ifneq ($(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
 179
 180 # The fdlibm code generates a lot of these warnings but is otherwise clean.
 181 override CFLAGS += -Wno-uninitialized
 182
 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) $(@F)
 190
 191 ifeq ($(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): $(objpfx)libm_b.a
 198 endif
 199
 200 ifeq ($(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)
 211
 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