math/Makefile

   1 # Copyright (C) 1996-2017 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 # <http://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 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                    bits/math-finite.h bits/math-vector.h \
  30                    bits/libm-simd-decl-stubs.h bits/iscanonical.h \
  31                    bits/flt-eval-method.h bits/fp-fast.h bits/fp-logb.h \
  32                    bits/long-double.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 t_exp 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 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 w_ilogbF w_llogbF      \
  57                  w_log1pF w_scalblnF s_fmaxmagF s_fminmagF w_acosF        \
  58                  w_acoshF w_asinF w_atan2F w_atanhF w_coshF w_exp10F      \
  59                  w_exp2F w_fmodF w_hypotF w_j0F w_j1F w_jnF w_logF        \
  60                  w_log10F w_log2F w_powF w_remainderF w_sinhF w_sqrtF     \
  61                  w_tgammaF w_lgammaF w_lgammaF_r w_expF
  62
  63 libm-calls =                                                              \
  64         e_acosF e_acoshF e_asinF e_atan2F e_atanhF e_coshF e_expF e_fmodF \
  65         e_hypotF e_j0F e_j1F e_jnF e_lgammaF_r e_logF e_log10F e_powF     \
  66         e_rem_pio2F e_remainderF e_scalbF e_sinhF e_sqrtF e_gammaF_r      \
  67         e_ilogbF                                                          \
  68         k_cosF k_sinF k_tanF s_asinhF s_atanF s_cbrtF                     \
  69         s_ceilF s_cosF s_erfF s_expm1F s_fabsF                            \
  70         s_floorF s_log1pF s_logbF                                 \
  71         s_nextafterF s_nexttowardF s_rintF s_scalblnF                     \
  72         s_significandF s_sinF s_tanF s_tanhF                              \
  73         s_fpclassifyF s_truncF                                            \
  74         s_remquoF e_log2F e_exp2F s_roundF s_nearbyintF s_sincosF         \
  75         s_fmaF s_lrintF s_llrintF s_lroundF s_llroundF e_exp10F           \
  76         s_issignalingF $(calls:s_%=m_%) x2y2m1F                           \
  77         gamma_productF lgamma_negF lgamma_productF                        \
  78         s_nextupF s_totalorderF s_totalordermagF s_getpayloadF            \
  79         s_setpayloadF s_setpayloadsigF s_roundevenF s_fromfpF s_ufromfpF  \
  80         s_fromfpxF s_ufromfpxF $(gen-libm-calls)
  81
  82 libm-compat-calls =                                                     \
  83         w_acosF_compat w_acoshF_compat w_asinF_compat w_atan2F_compat   \
  84         w_atanhF_compat w_coshF_compat w_exp2F_compat w_exp10F_compat   \
  85         w_fmodF_compat w_hypotF_compat w_j0F_compat w_j1F_compat        \
  86         w_jnF_compat w_log2F_compat w_log10F_compat w_logF_compat       \
  87         w_powF_compat w_remainderF_compat w_scalbF_compat               \
  88         w_sinhF_compat w_sqrtF_compat w_tgammaF_compat                  \
  89         w_lgammaF_r_compat w_lgammaF_compat2 w_expF_compat              \
  90         w_lgamma_compatF k_standardF
  91
  92 # Type specific routine support.
  93 #
  94 # The following three variables control what is included for each type:
  95 #
  96 # type-floatN-suffix = The suffix of the type
  97 # type-floatN-routines = Type specific support objects
  98 # type-floatN-yes = If the type is supported, evaluates to floatN
  99 #
 100 # Finally, note that types is an intentionally recursive variable.
 101 # We only know the full set of supported types for the target machine
 102 # after the Rules makefile has been parsed.
 103 types = $(type-ldouble-$(long-double-fcts)) double float
 104
 105 # long double support
 106 type-ldouble-suffix := l
 107 type-ldouble-routines := t_sincosl k_sincosl s_iscanonicall
 108 type-ldouble-yes := ldouble
 109
 110 # double support
 111 type-double-suffix :=
 112 type-double-routines := branred doasin dosincos halfulp mpa mpatan2     \
 113                        mpatan mpexp mplog mpsqrt mptan sincos32 slowexp \
 114                        slowpow sincostab k_rem_pio2
 115
 116 # float support
 117 type-float-suffix := f
 118 type-float-routines := k_rem_pio2f
 119
 120
 121 # Apply suffix to each type in arg 1
 122 type-foreach = $(foreach t,$(types),$(subst F,$(type-$(t)-suffix),$(1)))
 123
 124 libm-routines = $(strip $(libm-support)                                 \
 125                         $(call type-foreach, $(libm-compat-calls))      \
 126                         $(call type-foreach, $(libm-calls))             \
 127                         $(foreach t, $(types), $(type-$(t)-routines)))  \
 128
 129 # These functions are in libc instead of libm because __printf_fp
 130 # calls them, so any program using printf will need them linked in,
 131 # and we don't want to have to link every program with -lm.
 132 # In libm-calls (above), list m_foo in place of s_foo for any
 133 # routine that should be compiled separately for its libc and libm versions.
 134 calls = s_isinfF s_isnanF s_finiteF s_copysignF s_modfF s_scalbnF s_frexpF \
 135         s_signbitF $(gen-calls)
 136 gen-calls = s_ldexpF
 137 generated += $(foreach s,.c .S,$(call type-foreach, $(calls:s_%=m_%$(s))))
 138 routines = $(call type-foreach, $(calls))
 139
 140 ifeq ($(build-mathvec),yes)
 141 # We need to install libm.so and libm.a as linker scripts
 142 # for transparent use of vector math library.
 143 install-lib-ldscripts := libm.so libm.a
 144 install-others = $(inst_libdir)/libm.so $(inst_libdir)/libm.a
 145 $(inst_libdir)/libm.so: $(common-objpfx)format.lds \
 146                         $(libm) \
 147                         $(libmvec) \
 148                         $(+force)
 149         (echo '/* GNU ld script'; echo '*/';\
 150          cat $<; \
 151          echo 'GROUP ( $(slibdir)/libm.so$(libm.so-version) ' \
 152               'AS_NEEDED ( $(libdir)/libmvec_nonshared.a $(slibdir)/libmvec.so$(libmvec.so-version) ) )' \
 153         ) > $@.new
 154         mv -f $@.new $@
 155
 156 $(inst_libdir)/libm-$(version).a: $(objpfx)libm.a \
 157                                   $(+force)
 158         $(do-install)
 159
 160 $(inst_libdir)/libm.a: $(common-objpfx)format.lds \
 161                        $(inst_libdir)/libm-$(version).a \
 162                        $(objpfx)../mathvec/libmvec.a \
 163                        $(+force)
 164         (echo '/* GNU ld script'; echo '*/';\
 165          cat $<; \
 166          echo 'GROUP ( $(libdir)/libm-$(version).a $(libdir)/libmvec.a )' \
 167         ) > $@.new
 168         mv -f $@.new $@
 169 endif
 170
 171 # Rules for the test suite.
 172 tests = test-matherr test-fenv atest-exp atest-sincos atest-exp2 basic-test \
 173         test-misc test-fpucw test-fpucw-ieee tst-definitions test-tgmath \
 174         test-tgmath-ret bug-nextafter bug-nexttoward bug-tgmath1 \
 175         test-tgmath-int test-tgmath2 test-powl tst-CMPLX tst-CMPLX2 test-snan \
 176         test-fenv-tls test-fenv-preserve test-fenv-return test-fenvinline \
 177         test-nearbyint-except test-fenv-clear test-signgam-finite \
 178         test-signgam-finite-c99 test-signgam-finite-c11 \
 179         test-nearbyint-except-2 test-signgam-uchar test-signgam-uchar-init \
 180         test-signgam-uint test-signgam-uint-init test-signgam-ullong \
 181         test-signgam-ullong-init test-nan-overflow test-nan-payload \
 182         test-fexcept test-fexcept-traps test-fesetexcept \
 183         test-fesetexcept-traps test-fetestexceptflag test-femode \
 184         test-femode-traps test-iszero-excess-precision \
 185         test-iseqsig-excess-precision test-flt-eval-method \
 186         test-fp-ilogb-constants test-fp-llogb-constants \
 187         test-fe-snans-always-signal $(tests-static)
 188 tests-static = test-fpucw-static test-fpucw-ieee-static \
 189                test-signgam-uchar-static test-signgam-uchar-init-static \
 190                test-signgam-uint-static test-signgam-uint-init-static \
 191                test-signgam-ullong-static test-signgam-ullong-init-static
 192
 193 ifneq (,$(CXX))
 194 tests += test-math-isinff test-math-iszero
 195 endif
 196
 197 ifneq (no,$(PERL))
 198 libm-vec-tests = $(addprefix test-,$(libmvec-tests))
 199 libm-test-support = $(foreach t,$(types),libm-test-support-$(t))
 200 test-extras += $(libm-test-support)
 201 extra-test-objs += $(addsuffix .o, $(libm-test-support))
 202 libm-vec-test-wrappers = $(addsuffix -wrappers, $(libm-vec-tests))
 203 test-extras += $(libm-vec-test-wrappers)
 204 extra-test-objs += $(addsuffix .o, $(libm-vec-test-wrappers))
 205
 206 ulps-file = $(firstword $(wildcard $(sysdirs:%=%/libm-test-ulps)))
 207
 208 $(objpfx)libm-test-ulps.h: $(ulps-file) gen-libm-test.pl
 209         $(make-target-directory)
 210         $(PERL) gen-libm-test.pl -u $< -H $@
 211
 212 libm-test-funcs-auto = acos acosh asin asinh atan atan2 atanh cabs cacos \
 213                        cacosh carg casin casinh catan catanh cbrt ccos ccosh \
 214                        cexp clog clog10 cos cosh cpow csin csinh csqrt ctan \
 215                        ctanh erf erfc exp exp10 exp2 expm1 fma hypot j0 j1 jn \
 216                        lgamma log log10 log1p log2 pow sin sincos sinh sqrt \
 217                        tan tanh tgamma y0 y1 yn
 218 libm-test-funcs-noauto = canonicalize ceil cimag conj copysign cproj creal \
 219                          fabs fdim floor fmax fmaxmag fmin fminmag fmod \
 220                          fpclassify frexp fromfp fromfpx getpayload ilogb \
 221                          iscanonical iseqsig isfinite isgreater \
 222                          isgreaterequal isinf isless islessequal \
 223                          islessgreater isnan isnormal issignaling issubnormal \
 224                          isunordered iszero llogb llrint llround logb lrint \
 225                          lround modf nearbyint nextafter nextdown nexttoward \
 226                          nextup remainder remquo rint round roundeven scalb \
 227                          scalbln scalbn setpayload setpayloadsig signbit \
 228                          significand totalorder totalordermag trunc ufromfp \
 229                          ufromfpx
 230 libm-test-funcs-all = $(libm-test-funcs-auto) $(libm-test-funcs-noauto)
 231 libm-test-c-auto = $(foreach f,$(libm-test-funcs-auto),libm-test-$(f).c)
 232 libm-test-c-noauto = $(foreach f,$(libm-test-funcs-noauto),libm-test-$(f).c)
 233 generated += libm-test-ulps.h $(libm-test-c-auto) $(libm-test-c-noauto)
 234
 235 libm-tests-base-normal = $(foreach t,$(types),test-$(t))
 236 libm-tests-base-finite = $(foreach t,$(types),test-$(t)-finite)
 237 libm-tests-base-inline = $(foreach t,$(types),test-i$(t))
 238 libm-tests-base = $(libm-tests-base-normal) $(libm-tests-base-finite) \
 239                   $(libm-tests-base-inline) $(libm-vec-tests)
 240 libm-tests-normal = $(foreach t,$(libm-tests-base-normal),\
 241                                 $(foreach f,$(libm-test-funcs-all),\
 242                                             $(t)-$(f)))
 243 libm-tests-finite = $(foreach t,$(libm-tests-base-finite),\
 244                                 $(foreach f,$(libm-test-funcs-all),\
 245                                             $(t)-$(f)))
 246 libm-tests-inline = $(foreach t,$(libm-tests-base-inline),\
 247                                 $(foreach f,$(libm-test-funcs-all),\
 248                                             $(t)-$(f)))
 249 libm-tests-vector = $(foreach t,$(libmvec-tests),\
 250                                 $(foreach f,$($(t)-funcs),test-$(t)-$(f)))
 251 libm-tests = $(libm-tests-normal) $(libm-tests-finite) $(libm-tests-inline) \
 252              $(libm-tests-vector)
 253 libm-tests-for-type = $(foreach f,$(libm-test-funcs-all),\
 254                                   test-$(1)-$(f) test-$(1)-finite-$(f) \
 255                                   test-i$(1)-$(f)) \
 256                       $(filter test-$(1)-%,$(libm-tests-vector))
 257
 258 libm-tests.o = $(addsuffix .o,$(libm-tests))
 259
 260 tests += $(libm-tests)
 261 generated += $(addsuffix .c,$(libm-tests)) \
 262              $(foreach t,$(types),libm-test-support-$(t).c)
 263
 264 libm-test-c-auto-obj = $(addprefix $(objpfx),$(libm-test-c-auto))
 265 libm-test-c-noauto-obj = $(addprefix $(objpfx),$(libm-test-c-noauto))
 266
 267 $(libm-test-c-noauto-obj): $(objpfx)libm-test%.c: libm-test%.inc \
 268                                                   gen-libm-test.pl
 269         $(make-target-directory)
 270         $(PERL) gen-libm-test.pl -c $< -a /dev/null -C $@
 271
 272 $(libm-test-c-auto-obj): $(objpfx)libm-test%.c: libm-test%.inc \
 273                                                 gen-libm-test.pl \
 274                                                 auto-libm-test-out%
 275         $(make-target-directory)
 276         $(PERL) gen-libm-test.pl -c $< -a auto-libm-test-out$* -C $@
 277
 278 libm-test-incs = $(foreach f,$(libm-test-funcs-all),libm-test-$(f).inc)
 279 endif
 280
 281 libm-test-fast-math-cflags = -fno-builtin -D__FAST_MATH__ -DTEST_FAST_MATH
 282 libm-test-vec-cflags = $(libm-test-fast-math-cflags) -fno-inline \
 283                        -ffloat-store -D_OPENMP=201307 -Wno-unknown-pragmas
 284
 285 CFLAGS-test-double-vlen4-wrappers.c = $(double-vlen4-arch-ext-cflags)
 286
 287 CFLAGS-test-double-vlen8-wrappers.c = $(double-vlen8-arch-ext-cflags)
 288
 289 CFLAGS-test-float-vlen8-wrappers.c = $(float-vlen8-arch-ext-cflags)
 290
 291 CFLAGS-test-float-vlen16-wrappers.c = $(float-vlen16-arch-ext-cflags)
 292
 293 # The no-inline tests use -fsignaling-nans, and thereby use the
 294 # versions of classification macros that support sNaNs.  The inline
 295 # function tests use the versions of classification macros that may
 296 # raise spurious exceptions for sNaNs, but also do not test for
 297 # exceptions.  Thus both versions of the classification macros are
 298 # validated.
 299 libm-test-no-inline-cflags = -fno-inline -ffloat-store -fno-builtin \
 300                              -fsignaling-nans
 301 libm-test-finite-cflags = $(libm-test-no-inline-cflags) \
 302                           -U__FINITE_MATH_ONLY__ -D__FINITE_MATH_ONLY__=1
 303 libm-test-inline-cflags = $(libm-test-fast-math-cflags)
 304 CFLAGS-test-tgmath.c = -fno-builtin
 305 # The following testcase uses very long lines (>3 million), so it may take a
 306 # while to compile it. See: http://llvm.org/bugs/show_bug.cgi?id=14106 and
 307 # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54402
 308 CFLAGS-test-tgmath2.c = -fno-builtin
 309 CFLAGS-test-tgmath-ret.c = -fno-builtin
 310 CFLAGS-test-powl.c = -fno-builtin
 311
 312 CFLAGS-test-snan.c = -fsignaling-nans
 313
 314 CFLAGS-test-signgam-finite.c = -ffinite-math-only
 315 CFLAGS-test-signgam-finite-c99.c = -ffinite-math-only -std=c99
 316 CFLAGS-test-signgam-finite-c11.c = -ffinite-math-only -std=c11
 317 CFLAGS-test-signgam-uchar.c = -std=c99
 318 CFLAGS-test-signgam-uchar-init.c = -std=c99
 319 CFLAGS-test-signgam-uchar-static.c = -std=c99
 320 CFLAGS-test-signgam-uchar-init-static.c = -std=c99
 321 CFLAGS-test-signgam-uint.c = -std=c99
 322 CFLAGS-test-signgam-uint-init.c = -std=c99
 323 CFLAGS-test-signgam-uint-static.c = -std=c99
 324 CFLAGS-test-signgam-uint-init-static.c = -std=c99
 325 CFLAGS-test-signgam-ullong.c = -std=c99
 326 CFLAGS-test-signgam-ullong-init.c = -std=c99
 327 CFLAGS-test-signgam-ullong-static.c = -std=c99
 328 CFLAGS-test-signgam-ullong-init-static.c = -std=c99
 329
 330 CFLAGS-test-math-isinff.cc = -std=gnu++11
 331 CFLAGS-test-math-iszero.cc = -std=gnu++11
 332
 333 CFLAGS-test-iszero-excess-precision.c = -fexcess-precision=standard
 334 CFLAGS-test-iseqsig-excess-precision.c = -fexcess-precision=standard
 335 CFLAGS-test-flt-eval-method.c = -fexcess-precision=standard
 336
 337 CFLAGS-test-fe-snans-always-signal.c = -fsignaling-nans
 338
 339 # The -lieee module sets the _LIB_VERSION_ switch to IEEE mode
 340 # for error handling in the -lm functions.
 341 install-lib += libieee.a
 342 non-lib.a += libieee.a
 343 extra-objs += libieee.a ieee-math.o
 344
 345 include ../Rules
 346
 347 gen-all-calls = $(gen-libm-calls) $(gen-calls)
 348
 349 generated += $(addsuffix .c,$(call type-foreach,$(gen-all-calls))) \
 350              gen-libm-templates.stmp
 351
 352 # Create wrappers in the math build directory.
 353 $(objpfx)gen-libm-templates.stmp: Makefile
 354         $(make-target-directory)
 355         for gcall in $(gen-all-calls); do                                 \
 356           func=$${gcall%F*}$${gcall#*F};                                  \
 357           for type in $(foreach t,$(types),$(t)__$(type-$(t)-suffix)); do \
 358             suff=$${type#*__};                                            \
 359             type=$${type%__*};                                            \
 360             file=$(objpfx)$${gcall%F*}$${suff}$${gcall#*F}.c;             \
 361             (                                                             \
 362               echo "#include <math-type-macros-$${type}.h>";              \
 363               echo "#include <$${func}_template.c>";                      \
 364             ) > $${file};                                                 \
 365           done;                                                           \
 366         done;                                                             \
 367         echo > $(@)
 368
 369 # Add dependency to ensure the generator runs prior.
 370 $(foreach t, $(call type-foreach, $(gen-all-calls)), \
 371              $(objpfx)$(t).c): $(objpfx)gen-libm-templates.stmp
 372
 373 ifneq (no,$(PERL))
 374 # This must come after the inclusion of sysdeps Makefiles via Rules.
 375
 376 $(foreach t,$(libm-tests-normal),$(objpfx)$(t).c): $(objpfx)test-%.c:
 377         type_func=$*; \
 378         type=$${type_func%%-*}; \
 379         func=$${type_func#*-}; \
 380         ( \
 381           echo "#include <test-$$type.h>"; \
 382           echo "#include <test-math-no-finite.h>"; \
 383           echo "#include <test-math-no-inline.h>"; \
 384           echo "#include <test-math-errno.h>"; \
 385           echo "#include <test-math-scalar.h>"; \
 386           echo "#include <libm-test-$$func.c>"; \
 387         ) > $@
 388
 389 $(foreach t,$(libm-tests-finite),$(objpfx)$(t).c): $(objpfx)test-%.c:
 390         type_func=$*; \
 391         type=$${type_func%%-*}; \
 392         func=$${type_func#*-finite-}; \
 393         ( \
 394           echo "#include <test-$$type.h>"; \
 395           echo "#include <test-math-finite.h>"; \
 396           echo "#include <test-math-no-inline.h>"; \
 397           echo "#include <test-math-scalar.h>"; \
 398           echo "#include <libm-test-$$func.c>"; \
 399         ) > $@
 400
 401 $(foreach t,$(libm-tests-inline),$(objpfx)$(t).c): $(objpfx)test-i%.c:
 402         type_func=$*; \
 403         type=$${type_func%%-*}; \
 404         func=$${type_func#*-}; \
 405         ( \
 406           echo "#include <test-$$type.h>"; \
 407           echo "#include <test-math-inline.h>"; \
 408           echo "#include <test-math-scalar.h>"; \
 409           echo "#include <libm-test-$$func.c>"; \
 410         ) > $@
 411
 412 $(foreach t,$(libm-tests-vector),$(objpfx)$(t).c): $(objpfx)test-%.c:
 413         type_func=$*; \
 414         type=$${type_func%-*}; \
 415         func=$${type_func##*-}; \
 416         func_args=$$(grep ALL_RM_TEST libm-test-$$func.inc \
 417                      | sed 's/.*RUN_TEST_LOOP_//;s/_.*//'); \
 418         ( \
 419           echo "#include <test-$$type.h>"; \
 420           echo "WRAPPER_DECL_$$func_args (WRAPPER_NAME (FUNC ($$func)))"; \
 421           echo "#include <libm-test-$$func.c>"; \
 422         ) > $@
 423
 424 $(foreach t,$(types),\
 425             $(objpfx)libm-test-support-$(t).c): $(objpfx)libm-test-support-%.c:
 426         ( \
 427           echo "#include <test-$*.h>"; \
 428           echo "#include <libm-test-support.c>"; \
 429         ) > $@
 430
 431 $(addprefix $(objpfx), $(libm-tests.o)): $(objpfx)libm-test-ulps.h
 432
 433 define o-iterator-doit
 434 $(foreach f,$(libm-test-funcs-all),\
 435             $(objpfx)$(o)-$(f).o): $(objpfx)$(o)%.o: $(objpfx)libm-test%.c
 436 endef
 437 object-suffixes-left := $(libm-tests-base)
 438 include $(o-iterator)
 439
 440 define o-iterator-doit
 441 $(foreach f,$(libm-test-funcs-all),\
 442             $(objpfx)$(o)-$(f).o): CFLAGS += $(libm-test-no-inline-cflags)
 443 endef
 444 object-suffixes-left := $(libm-tests-base-normal)
 445 include $(o-iterator)
 446
 447 define o-iterator-doit
 448 $(foreach f,$(libm-test-funcs-all),\
 449             $(objpfx)$(o)-$(f).o): CFLAGS += $(libm-test-finite-cflags)
 450 endef
 451 object-suffixes-left := $(libm-tests-base-finite)
 452 include $(o-iterator)
 453
 454 define o-iterator-doit
 455 $(foreach f,$(libm-test-funcs-all),\
 456             $(objpfx)$(o)-$(f).o): CFLAGS += $(libm-test-inline-cflags)
 457 endef
 458 object-suffixes-left := $(libm-tests-base-inline)
 459 include $(o-iterator)
 460
 461 define o-iterator-doit
 462 $(foreach f,$($(o)-funcs),\
 463             $(objpfx)test-$(o)-$(f).o): CFLAGS += $(libm-test-vec-cflags)
 464 endef
 465 object-suffixes-left := $(libmvec-tests)
 466 include $(o-iterator)
 467
 468 define o-iterator-doit
 469 $(addprefix $(objpfx),\
 470             $(call libm-tests-for-type,$(o))): $(objpfx)libm-test-support-$(o).o
 471 endef
 472 object-suffixes-left := $(types)
 473 include $(o-iterator)
 474
 475 define o-iterator-doit
 476 $(objpfx)libm-test-support-$(o).o: CFLAGS += $(libm-test-no-inline-cflags)
 477 endef
 478 object-suffixes-left := $(types)
 479 include $(o-iterator)
 480
 481 # Run the math programs to automatically generate ULPs files.
 482 .PHONY: regen-ulps
 483
 484 run-regen-ulps = $(test-wrapper-env) \
 485             $(run-program-env) \
 486             $($*-ENV) $(rtld-prefix) $${run}
 487
 488 regen-ulps: $(addprefix $(objpfx),$(libm-tests))
 489         rm -f $(objpfx)ULPs; rm -f $(objpfx)NewUlps; \
 490         cp $(ulps-file) $(objpfx)libm-test-ulps; \
 491         for run in $^; do \
 492           echo "Regenerating ULPs for $${run}"; \
 493           $(run-regen-ulps) -u -o $(objpfx); \
 494           cat $(objpfx)ULPs >> $(objpfx)libm-test-ulps; \
 495           rm $(objpfx)ULPs; \
 496         done; \
 497         $(PERL) gen-libm-test.pl -n $(objpfx)NewUlps \
 498                                  -u $(objpfx)libm-test-ulps; \
 499         echo "Automatic regeneration of ULPs complete."; \
 500         echo "Difference between the current baseline and the new baseline is:";\
 501         diff -urN $(ulps-file) $(objpfx)NewUlps; \
 502         echo "Copy $(objpfx)NewUlps to $(ulps-file) (relative to source)."
 503 else
 504 regen-ulps:
 505         @echo "Automatic regeneration of ULPs requires perl."; \
 506         exit 1;
 507 endif
 508
 509 # The generated sysd-rules file defines rules like this for sources
 510 # coming from sysdeps/ directories.  These rules find the generic sources.
 511 define o-iterator-doit
 512 $(objpfx)m_%$o: s_%.c $(before-compile); $$(compile-command.c)
 513 endef
 514 object-suffixes-left := $(all-object-suffixes)
 515 include $(o-iterator)
 516
 517 # Likewise, for those generated files shared with libc.
 518 define o-iterator-doit
 519 $(objpfx)m_%$o: $(objpfx)s_%.c $(before-compile); $$(compile-command.c)
 520 endef
 521 object-suffixes-left := $(all-object-suffixes)
 522 include $(o-iterator)
 523
 524 # This file defines the default _LIB_VERSION variable that controls
 525 # the error return conventions for the math functions.
 526 CPPFLAGS-s_lib_version.c := -D_POSIX_MODE
 527
 528 # We don't want the fdlibm code to use the inline math functions,
 529 # only the fdlibm code.
 530 math-CPPFLAGS += -D__NO_MATH_INLINES -D__LIBC_INTERNAL_MATH_INLINES
 531
 532 ifneq ($(long-double-fcts),yes)
 533 # The `double' and `long double' types are the same on this machine.
 534 # We won't compile the `long double' code at all.  Tell the `double' code
 535 # to define aliases for the `FUNCl' names.  To avoid type conflicts in
 536 # defining those aliases, tell <math.h> to declare the `FUNCl' names with
 537 # `double' instead of `long double'.
 538 math-CPPFLAGS += -DNO_LONG_DOUBLE -D_Mlong_double_=double
 539 endif
 540
 541 # These files quiet sNaNs in a way that is optimized away without
 542 # -fsignaling-nans.
 543 CFLAGS-s_modf.c += -fsignaling-nans
 544 CFLAGS-s_modff.c += -fsignaling-nans
 545 CFLAGS-s_modfl.c += -fsignaling-nans
 546
 547 # The -lieee library is actually an object file.
 548 # The module just defines the _LIB_VERSION_ variable.
 549 # It's not a library to make sure it is linked in instead of s_lib_version.o.
 550 $(objpfx)libieee.a: $(objpfx)ieee-math.o
 551         rm -f $@
 552         $(patsubst %/,cd % &&,$(objpfx)) \
 553         $(LN_S) $(<F) $(@F)
 554
 555 $(addprefix $(objpfx),\
 556             $(filter-out $(tests-static) $(libm-tests-vector),\
 557                          $(tests))): $(libm)
 558 $(addprefix $(objpfx),$(tests-static)): $(objpfx)libm.a
 559 define o-iterator-doit
 560 $(foreach f,$($(o)-funcs),\
 561             $(objpfx)test-$(o)-$(f)): $(objpfx)test-$(o)-wrappers.o \
 562                                       $(libm) $(libmvec)
 563 endef
 564 object-suffixes-left := $(libmvec-tests)
 565 include $(o-iterator)
 566
 567 gmp-objs = $(patsubst %,$(common-objpfx)stdlib/%.o,\
 568                       add_n sub_n cmp addmul_1 mul_1 mul_n divmod_1 \
 569                       lshift rshift mp_clz_tab udiv_qrnnd inlines \
 570                       $(gmp-sysdep_routines))
 571 $(objpfx)atest-exp: $(gmp-objs)
 572 $(objpfx)atest-sincos: $(gmp-objs)
 573 $(objpfx)atest-exp2: $(gmp-objs)
 574 $(objpfx)test-fenv-tls: $(shared-thread-library)