math/Makefile

   1 # Copyright (C) 1996-2020 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 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.
   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 # Lesser General Public License for more details.
  13
  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 # <https://www.gnu.org/licenses/>.
  17
  18 # Makefile for the math library.
  19
  20 subdir          := math
  21
  22 include ../Makeconfig
  23
  24 # Installed header files.
  25 headers         := math.h bits/mathcalls.h bits/mathinline.h \
  26                    fpu_control.h complex.h bits/cmathcalls.h fenv.h \
  27                    bits/fenv.h bits/fenvinline.h bits/mathdef.h tgmath.h \
  28                    bits/math-vector.h finclude/math-vector-fortran.h \
  29                    bits/libm-simd-decl-stubs.h bits/iscanonical.h \
  30                    bits/flt-eval-method.h bits/fp-fast.h bits/fp-logb.h \
  31                    bits/long-double.h bits/mathcalls-helper-functions.h \
  32                    bits/floatn.h bits/floatn-common.h bits/mathcalls-narrow.h
  33
  34 # FPU support code.
  35 aux             := setfpucw fpu_control
  36
  37 # Build the -lm library.
  38
  39 extra-libs      := libm
  40 extra-libs-others = $(extra-libs)
  41
  42 libm-support = s_lib_version s_matherr s_signgam                        \
  43                fclrexcpt fgetexcptflg fraiseexcpt fsetexcptflg          \
  44                ftestexcept fegetround fesetround fegetenv feholdexcpt   \
  45                fesetenv feupdateenv fedisblxcpt feenablxcpt     \
  46                fegetexcept fesetexcept fetestexceptflag fegetmode       \
  47                fesetmode
  48
  49 # Wrappers for these functions generated per type using a file named
  50 # <func>_template.c and the appropriate math-type-macros-<TYPE>.h.
  51 gen-libm-calls = cargF conjF cimagF crealF cabsF e_scalbF s_cacosF        \
  52                  s_cacoshF s_ccosF s_ccoshF s_casinF s_csinF s_casinhF    \
  53                  k_casinhF s_csinhF k_casinhF s_csinhF s_catanhF s_catanF \
  54                  s_ctanF s_ctanhF s_cexpF s_clogF s_cprojF s_csqrtF       \
  55                  s_cpowF s_clog10F s_fdimF s_nextdownF s_fmaxF s_fminF    \
  56                  s_nanF s_iseqsigF s_canonicalizeF s_significandF         \
  57                  w_ilogbF w_llogbF                                        \
  58                  w_log1pF w_scalblnF s_fmaxmagF s_fminmagF w_acosF        \
  59                  w_acoshF w_asinF w_atan2F w_atanhF w_coshF w_exp10F      \
  60                  w_exp2F w_fmodF w_hypotF w_j0F w_j1F w_jnF w_logF        \
  61                  w_log10F w_log2F w_powF w_remainderF w_scalbF            \
  62                  w_sinhF w_sqrtF                                          \
  63                  w_tgammaF w_lgammaF w_lgammaF_r w_expF e_exp2F
  64
  65 libm-calls =                                                              \
  66         e_acosF e_acoshF e_asinF e_atan2F e_atanhF e_coshF e_expF e_fmodF \
  67         e_hypotF e_j0F e_j1F e_jnF e_lgammaF_r e_logF e_log10F e_powF     \
  68         e_remainderF e_sinhF e_sqrtF e_gammaF_r                           \
  69         e_ilogbF                                                          \
  70         k_tanF s_asinhF s_atanF s_cbrtF                                   \
  71         s_ceilF s_cosF s_erfF s_expm1F s_fabsF                            \
  72         s_floorF s_log1pF s_logbF                                 \
  73         s_nextafterF s_nexttowardF s_rintF s_scalblnF                     \
  74         s_sinF s_tanF s_tanhF                                             \
  75         s_fpclassifyF s_truncF                                            \
  76         s_remquoF e_log2F s_roundF s_nearbyintF s_sincosF                 \
  77         s_fmaF s_lrintF s_llrintF s_lroundF s_llroundF e_exp10F           \
  78         s_issignalingF $(calls:s_%=m_%) x2y2m1F                           \
  79         gamma_productF lgamma_negF lgamma_productF                        \
  80         s_nextupF s_totalorderF s_totalordermagF s_getpayloadF            \
  81         s_setpayloadF s_setpayloadsigF s_roundevenF s_fromfpF s_ufromfpF  \
  82         s_fromfpxF s_ufromfpxF $(gen-libm-calls)
  83
  84 libm-compat-calls =                                                     \
  85         w_acosF_compat w_acoshF_compat w_asinF_compat w_atan2F_compat   \
  86         w_atanhF_compat w_coshF_compat w_exp2F_compat w_exp10F_compat   \
  87         w_fmodF_compat w_hypotF_compat w_j0F_compat w_j1F_compat        \
  88         w_jnF_compat w_log2F_compat w_log10F_compat w_logF_compat       \
  89         w_powF_compat w_remainderF_compat w_scalbF_compat               \
  90         w_sinhF_compat w_sqrtF_compat w_tgammaF_compat                  \
  91         w_lgammaF_r_compat w_lgammaF_compat2 w_expF_compat              \
  92         w_lgamma_compatF k_standardF
  93
  94 libm-narrow-fns = add div mul sub
  95 libm-narrow-types-basic = s_fF s_f32xFf64
  96 libm-narrow-types-ldouble-yes = s_fFl s_dFl
  97 libm-narrow-types-float128-yes = s_f32Ff128 s_f64Ff128 s_f64xFf128
  98 libm-narrow-types-float128-alias-yes = s_f64xFf128
  99 libm-narrow-types = $(libm-narrow-types-basic) \
 100                     $(libm-narrow-types-ldouble-$(long-double-fcts)) \
 101                     $(libm-narrow-types-float128-$(float128-fcts)) \
 102                     $(libm-narrow-types-float128-alias-$(float128-alias-fcts))
 103
 104 # Type specific routine support.
 105 #
 106 # The following three variables control what is included for each type:
 107 #
 108 # type-floatN-suffix = The suffix of the type
 109 # type-floatN-routines = Type specific support objects
 110 # type-floatN-yes = If the type is supported, evaluates to floatN
 111 #
 112 # Finally, note that types is an intentionally recursive variable.
 113 # We only know the full set of supported types for the target machine
 114 # after the Rules makefile has been parsed.
 115 types-basic = $(type-ldouble-$(long-double-fcts)) double float
 116
 117 # Like types, but includes types whose functions alias those for
 118 # another type.
 119 test-types-basic = ldouble double float
 120
 121 # long double support
 122 type-ldouble-suffix := l
 123 type-ldouble-routines := t_sincosl k_sinl k_cosl k_sincosl s_iscanonicall \
 124                          e_rem_pio2l
 125 type-ldouble-yes := ldouble
 126
 127 # double support
 128 type-double-suffix :=
 129 type-double-routines := branred doasin dosincos mpa mpatan2     \
 130                        k_rem_pio2 mpatan mpsqrt mptan sincos32  \
 131                        sincostab math_err e_exp_data e_log_data \
 132                        e_log2_data e_pow_log_data
 133
 134 # float support
 135 type-float-suffix := f
 136 type-float-routines := math_errf e_exp2f_data e_logf_data       \
 137                        e_log2f_data e_powf_log2_data s_sincosf_data
 138
 139 # _Float128 support
 140 type-float128-suffix := f128
 141 type-float128-routines := t_sincosf128 k_sinf128 k_cosf128 k_sincosf128 \
 142                           e_rem_pio2f128
 143 type-float128-yes := float128
 144
 145 # _Float64x may be supported, only as an alias type.
 146 type-float64x-yes := float64x
 147
 148 # IBM long double support in additional to IEEE 128 long double support
 149 type-ibm128-suffix := l
 150 type-ibm128-yes := ibm128
 151
 152 types = $(types-basic) $(type-float128-$(float128-fcts))
 153 test-types = $(test-types-basic) $(type-float128-$(float128-fcts)) \
 154              float32 float64 $(type-float128-$(float128-alias-fcts)) \
 155              float32x $(type-float64x-$(float64x-alias-fcts)) \
 156              $(type-ibm128-$(ibm128-fcts))
 157
 158 # Pairs of types for which narrowing functions should be tested (this
 159 # variable has more entries than libm-narrow-types because it includes
 160 # pairs for which the functions sometimes or always alias functions
 161 # for other types). This definition embeds the assumption that if
 162 # _Float64x is supported, so is _Float128, and vice versa (they may or
 163 # may not have the same format).
 164 test-type-pairs = float-double float-ldouble double-ldouble \
 165                   float32-float64 float32-float32x float32x-float64 \
 166                   $(test-type-pairs-f64xf128-$(float128-fcts)) \
 167                   $(test-type-pairs-f64xf128-$(float128-alias-fcts))
 168 test-type-pairs-f64xf128-yes = float32-float64x float32-float128 \
 169                                float64-float64x float64-float128 \
 170                                float32x-float64x float32x-float128 \
 171                                float64x-float128
 172
 173 # For each of the basic types (float, double, long double), replace the
 174 # occurrences of 'F' in arg 1 with the appropriate suffix for the type.
 175 type-basic-foreach = $(foreach t, $(types-basic), \
 176                        $(subst F,$(type-$(t)-suffix),$(1)))
 177
 178 # Apply suffix to each type in arg 1
 179 type-foreach = $(foreach t,$(types),$(subst F,$(type-$(t)-suffix),$(1)))
 180
 181 libm-routines = $(strip $(libm-support)                                 \
 182                         $(call type-basic-foreach,                      \
 183                                $(libm-compat-calls))                    \
 184                         $(call type-foreach, $(libm-calls))             \
 185                         $(foreach t, $(types), $(type-$(t)-routines)))  \
 186                         $(foreach f,$(libm-narrow-fns),                 \
 187                                     $(subst F,$(f),$(libm-narrow-types)))
 188
 189 # These functions are in libc instead of libm because __printf_fp
 190 # calls them, so any program using printf will need them linked in,
 191 # and we don't want to have to link every program with -lm.
 192 # In libm-calls (above), list m_foo in place of s_foo for any
 193 # routine that should be compiled separately for its libc and libm versions.
 194 calls = s_isinfF s_isnanF s_finiteF s_copysignF s_modfF s_scalbnF s_frexpF \
 195         s_signbitF $(gen-calls)
 196 gen-calls = s_ldexpF
 197 generated += $(foreach s,.c .S,$(call type-foreach, $(calls:s_%=m_%$(s))))
 198 routines = $(call type-foreach, $(calls))
 199
 200 ifeq ($(build-mathvec),yes)
 201 # We need to install libm.so and libm.a as linker scripts
 202 # for transparent use of vector math library.
 203 install-lib-ldscripts := libm.so libm.a
 204 install-others = $(inst_libdir)/libm.so $(inst_libdir)/libm.a
 205 $(inst_libdir)/libm.so: $(common-objpfx)format.lds \
 206                         $(libm) \
 207                         $(libmvec) \
 208                         $(+force)
 209         (echo '/* GNU ld script'; echo '*/';\
 210          cat $<; \
 211          echo 'GROUP ( $(slibdir)/libm.so$(libm.so-version) ' \
 212               'AS_NEEDED ( $(slibdir)/libmvec.so$(libmvec.so-version) ) )' \
 213         ) > $@.new
 214         mv -f $@.new $@
 215
 216 $(inst_libdir)/libm-$(version).a: $(objpfx)libm.a \
 217                                   $(+force)
 218         $(do-install)
 219
 220 $(inst_libdir)/libm.a: $(common-objpfx)format.lds \
 221                        $(inst_libdir)/libm-$(version).a \
 222                        $(objpfx)../mathvec/libmvec.a \
 223                        $(+force)
 224         (echo '/* GNU ld script'; echo '*/';\
 225          cat $<; \
 226          echo 'GROUP ( $(libdir)/libm-$(version).a $(libdir)/libmvec.a )' \
 227         ) > $@.new
 228         mv -f $@.new $@
 229 endif
 230
 231 # Rules for the test suite.
 232 tests = test-matherr-3 test-fenv basic-test \
 233         test-misc test-fpucw test-fpucw-ieee tst-definitions test-tgmath \
 234         test-tgmath-ret bug-nextafter bug-nexttoward bug-tgmath1 \
 235         test-tgmath-int test-tgmath2 test-powl tst-CMPLX tst-CMPLX2 test-snan \
 236         test-fenv-tls test-fenv-preserve test-fenv-return test-fenvinline \
 237         test-nearbyint-except test-fenv-clear \
 238         test-nearbyint-except-2 test-signgam-uchar test-signgam-uchar-init \
 239         test-signgam-uint test-signgam-uint-init test-signgam-ullong \
 240         test-signgam-ullong-init test-nan-overflow test-nan-payload \
 241         test-fexcept test-fexcept-traps test-fesetexcept \
 242         test-fesetexcept-traps test-fetestexceptflag test-femode \
 243         test-femode-traps test-iszero-excess-precision \
 244         test-iseqsig-excess-precision test-flt-eval-method \
 245         test-fp-ilogb-constants test-fp-llogb-constants \
 246         test-fe-snans-always-signal test-narrow-macros \
 247         test-nan-const $(tests-static)
 248 tests-static = test-fpucw-static test-fpucw-ieee-static \
 249                test-signgam-uchar-static test-signgam-uchar-init-static \
 250                test-signgam-uint-static test-signgam-uint-init-static \
 251                test-signgam-ullong-static test-signgam-ullong-init-static
 252 tests-internal = test-matherr test-matherr-2
 253
 254 # These tests use internal (unexported) GMP functions and are linked
 255 # statically to obtain access to these functions.
 256 tests-static += atest-exp atest-sincos atest-exp2
 257
 258 ifneq (,$(CXX))
 259 tests += test-math-isinff test-math-iszero test-math-issignaling \
 260          test-math-iscanonical test-math-cxx11 test-math-iseqsig
 261 endif
 262
 263 libm-vec-tests = $(addprefix test-,$(libmvec-tests))
 264 libm-test-support = $(foreach t,$(test-types),libm-test-support-$(t))
 265 test-extras += $(libm-test-support)
 266 extra-test-objs += $(addsuffix .o, $(libm-test-support))
 267 libm-vec-test-wrappers = $(addsuffix -wrappers, $(libm-vec-tests))
 268 test-extras += $(libm-vec-test-wrappers)
 269 extra-test-objs += $(addsuffix .o, $(libm-vec-test-wrappers))
 270
 271 ulps-file = $(firstword $(wildcard $(sysdirs:%=%/libm-test-ulps)))
 272
 273 $(objpfx)libm-test-ulps.h: $(ulps-file) gen-libm-test.py
 274         $(make-target-directory)
 275         $(PYTHON) gen-libm-test.py -u $< -H $@
 276
 277 libm-test-funcs-auto = acos acosh asin asinh atan atan2 atanh cabs cacos \
 278                        cacosh carg casin casinh catan catanh cbrt ccos ccosh \
 279                        cexp clog clog10 cos cosh cpow csin csinh csqrt ctan \
 280                        ctanh erf erfc exp exp10 exp2 expm1 fma hypot j0 j1 jn \
 281                        lgamma log log10 log1p log2 pow sin sincos sinh sqrt \
 282                        tan tanh tgamma y0 y1 yn
 283 libm-test-funcs-noauto = canonicalize ceil cimag conj copysign cproj creal \
 284                          fabs fdim floor fmax fmaxmag fmin fminmag fmod \
 285                          fpclassify frexp fromfp fromfpx getpayload ilogb \
 286                          iscanonical iseqsig isfinite isgreater \
 287                          isgreaterequal isinf isless islessequal \
 288                          islessgreater isnan isnormal issignaling issubnormal \
 289                          isunordered iszero llogb llrint llround logb lrint \
 290                          lround modf nearbyint nextafter nextdown nexttoward \
 291                          nextup remainder remquo rint round roundeven scalb \
 292                          scalbln scalbn setpayload setpayloadsig signbit \
 293                          significand totalorder totalordermag trunc ufromfp \
 294                          ufromfpx compat_totalorder compat_totalordermag
 295 libm-test-funcs-compat = compat_totalorder compat_totalordermag
 296 libm-test-funcs-narrow = add div mul sub
 297 libm-test-funcs-all = $(libm-test-funcs-auto) $(libm-test-funcs-noauto)
 298 libm-test-c-auto = $(foreach f,$(libm-test-funcs-auto),libm-test-$(f).c)
 299 libm-test-c-noauto = $(foreach f,$(libm-test-funcs-noauto),libm-test-$(f).c)
 300 libm-test-c-narrow = $(foreach f,$(libm-test-funcs-narrow),\
 301                                  libm-test-narrow-$(f).c)
 302 generated += libm-test-ulps.h $(libm-test-c-auto) $(libm-test-c-noauto) \
 303              $(libm-test-c-narrow)
 304
 305 libm-tests-base-normal = $(foreach t,$(test-types),test-$(t))
 306 libm-tests-base-inline = $(foreach t,$(test-types),test-i$(t))
 307 libm-tests-base-narrow = $(foreach t,$(test-type-pairs),test-$(t))
 308 libm-tests-base = $(libm-tests-base-normal) $(libm-tests-base-inline) \
 309                   $(libm-vec-tests)
 310 libm-tests-normal = $(foreach t,$(libm-tests-base-normal),\
 311                                 $(foreach f,$(libm-test-funcs-all),\
 312                                             $(t)-$(f)))
 313 libm-tests-inline = $(foreach t,$(libm-tests-base-inline),\
 314                                 $(foreach f,$(libm-test-funcs-all),\
 315                                             $(t)-$(f)))
 316 libm-tests-narrow = $(foreach t,$(libm-tests-base-narrow),\
 317                                 $(foreach f,$(libm-test-funcs-narrow),\
 318                                             $(t)-$(f)))
 319 libm-tests-vector = $(foreach t,$(libmvec-tests),\
 320                                 $(foreach f,$($(t)-funcs),test-$(t)-$(f)))
 321 libm-tests = $(libm-tests-normal) $(libm-tests-inline) \
 322              $(libm-tests-narrow) $(libm-tests-vector)
 323 libm-tests-compat = $(foreach t,$(libm-tests-base-normal) \
 324                                 $(libm-tests-base-finite) \
 325                                 $(libm-tests-base-inline),\
 326                                 $(foreach f,$(libm-test-funcs-compat),\
 327                                             $(t)-$(f)))
 328 libm-tests-for-type = $(foreach f,$(libm-test-funcs-all),\
 329                                   test-$(1)-$(f) test-i$(1)-$(f)) \
 330                       $(filter test-$(1)-%,$(libm-tests-vector) \
 331                                            $(libm-tests-narrow))
 332
 333 libm-tests.o = $(addsuffix .o,$(libm-tests))
 334
 335 tests += $(filter-out $(libm-tests-compat),$(libm-tests))
 336 tests-internal += $(libm-tests-compat)
 337 generated += $(addsuffix .c,$(libm-tests)) \
 338              $(foreach t,$(test-types),libm-test-support-$(t).c)
 339
 340 libm-test-c-auto-obj = $(addprefix $(objpfx),$(libm-test-c-auto))
 341 libm-test-c-noauto-obj = $(addprefix $(objpfx),$(libm-test-c-noauto))
 342 libm-test-c-narrow-obj = $(addprefix $(objpfx),$(libm-test-c-narrow))
 343
 344 $(libm-test-c-noauto-obj): $(objpfx)libm-test%.c: libm-test%.inc \
 345                                                   gen-libm-test.py
 346         $(make-target-directory)
 347         $(PYTHON) gen-libm-test.py -c $< -a /dev/null -C $@
 348
 349 $(libm-test-c-auto-obj): $(objpfx)libm-test%.c: libm-test%.inc \
 350                                                 gen-libm-test.py \
 351                                                 auto-libm-test-out%
 352         $(make-target-directory)
 353         $(PYTHON) gen-libm-test.py -c $< -a auto-libm-test-out$* -C $@
 354
 355 $(libm-test-c-narrow-obj): $(objpfx)libm-test%.c: libm-test%.inc \
 356                                                   gen-libm-test.py \
 357                                                   auto-libm-test-out%
 358         $(make-target-directory)
 359         $(PYTHON) gen-libm-test.py -c $< -a auto-libm-test-out$* -C $@
 360
 361 # Tests for totalorder compat symbols reuse the table of tests as
 362 # processed by gen-libm-test.py, so add dependencies on the generated
 363 # .c files.
 364 $(foreach t,$(libm-tests-base),\
 365             $(objpfx)$(t)-compat_totalorder.o): $(objpfx)libm-test-totalorder.c
 366
 367 $(foreach t,$(libm-tests-base),\
 368             $(objpfx)$(t)-compat_totalordermag.o): $(objpfx)libm-test-totalordermag.c
 369
 370 # _Float128x omitted as not supported by gen-tgmath-tests.py.
 371 tgmath3-narrow-types = f d f16 f32 f64 f128 f32x f64x
 372 tgmath3-narrow-macros = $(foreach t,$(tgmath3-narrow-types), \
 373                                     $(foreach f,$(libm-narrow-fns),$(t)$(f)))
 374 tgmath3-macros = atan2 cbrt ceil copysign erf erfc exp2 expm1 fdim floor \
 375                  fma fmax fmin fmod frexp hypot ilogb ldexp lgamma llrint \
 376                  llround log10 log1p log2 logb lrint lround nearbyint \
 377                  nextafter nexttoward remainder remquo rint round scalbn \
 378                  scalbln tgamma trunc acos asin atan acosh asinh atanh cos \
 379                  sin tan cosh sinh tanh exp log pow sqrt fabs carg cimag conj \
 380                  cproj creal roundeven nextup nextdown fminmag fmaxmag llogb \
 381                  fromfp fromfpx ufromfp ufromfpx scalb $(tgmath3-narrow-macros)
 382 tgmath3-macro-tests = $(addprefix test-tgmath3-,$(tgmath3-macros))
 383 tests += $(tgmath3-macro-tests)
 384 generated += $(addsuffix .c,$(tgmath3-macro-tests))
 385
 386 $(tgmath3-macro-tests:%=$(objpfx)%.o): CFLAGS += -fno-builtin
 387
 388 $(foreach m,$(tgmath3-macros),\
 389             $(objpfx)test-tgmath3-$(m).c): $(objpfx)test-tgmath3-%.c: \
 390                                            gen-tgmath-tests.py
 391         $(PYTHON) gen-tgmath-tests.py $* > $@
 392
 393 # Verify that the list of supported macros is in sync between the
 394 # Makefile and gen-tgmath-tests.py.
 395 tests-special += $(objpfx)test-tgmath3-macro-list.out
 396 $(objpfx)test-tgmath3-macro-list.out: gen-tgmath-tests.py
 397         $(PYTHON) $< check-list $(tgmath3-macros) > $@; \
 398         $(evaluate-test)
 399
 400 libm-test-fast-math-cflags = -fno-builtin -D__FAST_MATH__ -DTEST_FAST_MATH
 401 libm-test-vec-cflags = $(libm-test-fast-math-cflags) -fno-inline \
 402                        -ffloat-store -D_OPENMP=201307 -Wno-unknown-pragmas
 403
 404 CFLAGS-test-double-vlen4-wrappers.c += $(double-vlen4-arch-ext-cflags)
 405
 406 CFLAGS-test-double-vlen8-wrappers.c += $(double-vlen8-arch-ext-cflags)
 407
 408 CFLAGS-test-float-vlen8-wrappers.c += $(float-vlen8-arch-ext-cflags)
 409
 410 CFLAGS-test-float-vlen16-wrappers.c += $(float-vlen16-arch-ext-cflags)
 411
 412 # The no-inline tests use -fsignaling-nans, and thereby use the
 413 # versions of classification macros that support sNaNs.  The inline
 414 # function tests use the versions of classification macros that may
 415 # raise spurious exceptions for sNaNs, but also do not test for
 416 # exceptions.  Thus both versions of the classification macros are
 417 # validated.
 418 libm-test-no-inline-cflags = -fno-inline -ffloat-store -fno-builtin \
 419                              -fsignaling-nans
 420 libm-test-inline-cflags = $(libm-test-fast-math-cflags)
 421 CFLAGS-test-tgmath.c += -fno-builtin
 422 # The following testcase uses very long lines (>3 million), so it may take a
 423 # while to compile it. See: http://llvm.org/bugs/show_bug.cgi?id=14106 and
 424 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54402
 425 CFLAGS-test-tgmath2.c += -fno-builtin
 426 CFLAGS-test-tgmath-ret.c += -fno-builtin
 427 CFLAGS-test-powl.c += -fno-builtin
 428
 429 CFLAGS-test-snan.c += -fsignaling-nans
 430
 431 CFLAGS-test-signgam-uchar.c += -std=c99
 432 CFLAGS-test-signgam-uchar-init.c += -std=c99
 433 CFLAGS-test-signgam-uchar-static.c += -std=c99
 434 CFLAGS-test-signgam-uchar-init-static.c += -std=c99
 435 CFLAGS-test-signgam-uint.c += -std=c99
 436 CFLAGS-test-signgam-uint-init.c += -std=c99
 437 CFLAGS-test-signgam-uint-static.c += -std=c99
 438 CFLAGS-test-signgam-uint-init-static.c += -std=c99
 439 CFLAGS-test-signgam-ullong.c += -std=c99
 440 CFLAGS-test-signgam-ullong-init.c += -std=c99
 441 CFLAGS-test-signgam-ullong-static.c += -std=c99
 442 CFLAGS-test-signgam-ullong-init-static.c += -std=c99
 443
 444 CFLAGS-test-math-cxx11.cc += -std=c++11
 445
 446 CFLAGS-test-math-isinff.cc += -std=gnu++11
 447 CFLAGS-test-math-iszero.cc += -std=gnu++11
 448 CFLAGS-test-math-issignaling.cc += -std=gnu++11
 449 CFLAGS-test-math-iscanonical.cc += -std=gnu++11
 450
 451 CFLAGS-test-iszero-excess-precision.c += -fexcess-precision=standard
 452 CFLAGS-test-iseqsig-excess-precision.c += -fexcess-precision=standard
 453 CFLAGS-test-flt-eval-method.c += -fexcess-precision=standard
 454
 455 CFLAGS-test-fe-snans-always-signal.c += -fsignaling-nans
 456
 457 CFLAGS-test-nan-const.c += -fno-builtin
 458
 459 include ../Rules
 460
 461 gen-all-calls = $(gen-libm-calls) $(gen-calls)
 462
 463 generated += $(addsuffix .c,$(call type-foreach,$(gen-all-calls))) \
 464              gen-libm-templates.stmp
 465
 466 # Create wrappers in the math build directory.
 467 $(objpfx)gen-libm-templates.stmp: Makefile
 468         $(make-target-directory)
 469         for gcall in $(gen-all-calls); do                                 \
 470           func=$${gcall%F*}$${gcall#*F};                                  \
 471           for type in $(foreach t,$(types),$(t)__$(type-$(t)-suffix)); do \
 472             suff=$${type#*__};                                            \
 473             type=$${type%__*};                                            \
 474             file=$(objpfx)$${gcall%F*}$${suff}$${gcall#*F}.c;             \
 475             (                                                             \
 476               echo "#include <math-type-macros-$${type}.h>";              \
 477               echo "#include <$${func}_template.c>";                      \
 478             ) > $${file};                                                 \
 479           done;                                                           \
 480         done;                                                             \
 481         echo > $(@)
 482
 483 # Add dependency to ensure the generator runs prior.
 484 $(foreach t, $(call type-foreach, $(gen-all-calls)), \
 485              $(objpfx)$(t).c): $(objpfx)gen-libm-templates.stmp
 486
 487 # This must come after the inclusion of sysdeps Makefiles via Rules.
 488
 489 $(foreach t,$(libm-tests-normal),$(objpfx)$(t).c): $(objpfx)test-%.c:
 490         type_func=$*; \
 491         type=$${type_func%%-*}; \
 492         func=$${type_func#*-}; \
 493         ( \
 494           echo "#include <test-$$type.h>"; \
 495           echo "#include <test-math-exceptions.h>"; \
 496           echo "#include <test-math-no-inline.h>"; \
 497           echo "#include <test-math-errno.h>"; \
 498           echo "#include <test-math-scalar.h>"; \
 499           echo "#include <libm-test-$$func.c>"; \
 500         ) > $@
 501
 502 $(foreach t,$(libm-tests-inline),$(objpfx)$(t).c): $(objpfx)test-i%.c:
 503         type_func=$*; \
 504         type=$${type_func%%-*}; \
 505         func=$${type_func#*-}; \
 506         ( \
 507           echo "#include <test-$$type.h>"; \
 508           echo "#include <test-math-inline.h>"; \
 509           echo "#include <test-math-scalar.h>"; \
 510           echo "#include <libm-test-$$func.c>"; \
 511         ) > $@
 512
 513 $(foreach t,$(libm-tests-narrow),$(objpfx)$(t).c): $(objpfx)test-%.c:
 514         type_pair_func=$*; \
 515         type_pair=$${type_pair_func%-*}; \
 516         func=$${type_pair_func##*-}; \
 517         ret_type=$${type_pair%%-*}; \
 518         arg_type=$${type_pair#*-}; \
 519         ( \
 520           echo "#include <test-$$ret_type.h>"; \
 521           echo "#include <test-arg-$$arg_type.h>"; \
 522           echo "#include <test-math-exceptions.h>"; \
 523           echo "#include <test-math-no-inline.h>"; \
 524           echo "#include <test-math-errno.h>"; \
 525           echo "#include <test-math-narrow.h>"; \
 526           echo "#include <libm-test-narrow-$$func.c>"; \
 527         ) > $@
 528
 529 $(foreach t,$(libm-tests-vector),$(objpfx)$(t).c): $(objpfx)test-%.c:
 530         type_func=$*; \
 531         type=$${type_func%-*}; \
 532         func=$${type_func##*-}; \
 533         func_args=$$(grep ALL_RM_TEST libm-test-$$func.inc \
 534                      | sed 's/.*RUN_TEST_LOOP_//;s/_.*//'); \
 535         ( \
 536           echo "#include <test-$$type.h>"; \
 537           echo "WRAPPER_DECL_$$func_args (WRAPPER_NAME (FUNC ($$func)))"; \
 538           echo "#include <libm-test-$$func.c>"; \
 539         ) > $@
 540
 541 $(foreach t,$(test-types),\
 542             $(objpfx)libm-test-support-$(t).c): $(objpfx)libm-test-support-%.c:
 543         ( \
 544           echo "#include <test-$*.h>"; \
 545           echo "#include <libm-test-support.c>"; \
 546         ) > $@
 547
 548 $(addprefix $(objpfx), $(libm-tests.o)): $(objpfx)libm-test-ulps.h
 549
 550 define o-iterator-doit
 551 $(foreach f,$(libm-test-funcs-all),\
 552             $(objpfx)$(o)-$(f).o): $(objpfx)$(o)%.o: $(objpfx)libm-test%.c
 553 endef
 554 object-suffixes-left := $(libm-tests-base)
 555 include $(o-iterator)
 556
 557 define o-iterator-doit
 558 $(foreach f,$(libm-test-funcs-narrow),\
 559             $(objpfx)$(o)-$(f).o): $(objpfx)$(o)%.o: \
 560                                    $(objpfx)libm-test-narrow%.c
 561 endef
 562 object-suffixes-left := $(libm-tests-base-narrow)
 563 include $(o-iterator)
 564
 565 define o-iterator-doit
 566 $(foreach f,$(libm-test-funcs-all),\
 567             $(objpfx)$(o)-$(f).o): CFLAGS += $(libm-test-no-inline-cflags)
 568 endef
 569 object-suffixes-left := $(libm-tests-base-normal)
 570 include $(o-iterator)
 571
 572 define o-iterator-doit
 573 $(foreach f,$(libm-test-funcs-all),\
 574             $(objpfx)$(o)-$(f).o): CFLAGS += $(libm-test-inline-cflags)
 575 endef
 576 object-suffixes-left := $(libm-tests-base-inline)
 577 include $(o-iterator)
 578
 579 define o-iterator-doit
 580 $(foreach f,$(libm-test-funcs-narrow),\
 581             $(objpfx)$(o)-$(f).o): CFLAGS += $(libm-test-no-inline-cflags)
 582 endef
 583 object-suffixes-left := $(libm-tests-base-narrow)
 584 include $(o-iterator)
 585
 586 define o-iterator-doit
 587 $(foreach f,$($(o)-funcs),\
 588             $(objpfx)test-$(o)-$(f).o): CFLAGS += $(libm-test-vec-cflags)
 589 endef
 590 object-suffixes-left := $(libmvec-tests)
 591 include $(o-iterator)
 592
 593 define o-iterator-doit
 594 $(addprefix $(objpfx),\
 595             $(call libm-tests-for-type,$(o))): $(objpfx)libm-test-support-$(o).o
 596 endef
 597 object-suffixes-left := $(test-types)
 598 include $(o-iterator)
 599
 600 define o-iterator-doit
 601 $(objpfx)libm-test-support-$(o).o: CFLAGS += $(libm-test-no-inline-cflags)
 602 endef
 603 object-suffixes-left := $(test-types)
 604 include $(o-iterator)
 605
 606 # Run the math programs to automatically generate ULPs files.
 607 .PHONY: regen-ulps
 608
 609 run-regen-ulps = $(test-wrapper-env) \
 610             $(run-program-env) \
 611             $($*-ENV) $(rtld-prefix) $(objpfx)$${run}
 612
 613 regen-ulps: $(addprefix $(objpfx),$(libm-tests))
 614         rm -f $(objpfx)ULPs; rm -f $(objpfx)NewUlps; \
 615         cp $(ulps-file) $(objpfx)libm-test-ulps; \
 616         for run in $(libm-tests); do \
 617           echo "Regenerating ULPs for $${run}"; \
 618           $(run-regen-ulps) -u -o $(objpfx); \
 619           cat $(objpfx)ULPs >> $(objpfx)libm-test-ulps; \
 620           rm $(objpfx)ULPs; \
 621         done; \
 622         $(PYTHON) gen-libm-test.py -n $(objpfx)NewUlps \
 623                                    -u $(objpfx)libm-test-ulps; \
 624         echo "Automatic regeneration of ULPs complete."; \
 625         echo "Difference between the current baseline and the new baseline is:";\
 626         diff -urN $(ulps-file) $(objpfx)NewUlps; \
 627         echo "Copy $(objpfx)NewUlps to $(ulps-file) (relative to source)."
 628
 629 # The generated sysd-rules file defines rules like this for sources
 630 # coming from sysdeps/ directories.  These rules find the generic sources.
 631 define o-iterator-doit
 632 $(objpfx)m_%$o: s_%.c $(before-compile); $$(compile-command.c)
 633 endef
 634 object-suffixes-left := $(all-object-suffixes)
 635 include $(o-iterator)
 636
 637 # Likewise, for those generated files shared with libc.
 638 define o-iterator-doit
 639 $(objpfx)m_%$o: $(objpfx)s_%.c $(before-compile); $$(compile-command.c)
 640 endef
 641 object-suffixes-left := $(all-object-suffixes)
 642 include $(o-iterator)
 643
 644 # We don't want the fdlibm code to use the inline math functions,
 645 # only the fdlibm code.
 646 math-CPPFLAGS += -D__NO_MATH_INLINES -D__LIBC_INTERNAL_MATH_INLINES
 647
 648 ifneq ($(long-double-fcts),yes)
 649 # The `double' and `long double' types are the same on this machine.
 650 # We won't compile the `long double' code at all.  Tell the `double' code
 651 # to define aliases for the `FUNCl' names.
 652 math-CPPFLAGS += -DNO_LONG_DOUBLE
 653 endif
 654
 655 # These files quiet sNaNs in a way that is optimized away without
 656 # -fsignaling-nans.
 657 CFLAGS-s_modf.c += -fsignaling-nans
 658 CFLAGS-s_modff.c += -fsignaling-nans
 659 CFLAGS-s_modfl.c += -fsignaling-nans
 660 CFLAGS-s_modff128.c += -fsignaling-nans
 661
 662 $(addprefix $(objpfx),\
 663             $(filter-out $(tests-static) $(libm-tests-vector),\
 664                          $(tests) $(tests-internal))): $(libm)
 665 $(addprefix $(objpfx),$(tests-static)): $(objpfx)libm.a
 666 define o-iterator-doit
 667 $(foreach f,$($(o)-funcs),\
 668             $(objpfx)test-$(o)-$(f)): $(objpfx)test-$(o)-wrappers.o \
 669                                       $(libm) $(libmvec)
 670 endef
 671 object-suffixes-left := $(libmvec-tests)
 672 include $(o-iterator)
 673
 674 $(objpfx)test-fenv-tls: $(shared-thread-library)