| # Copyright (C) 1996-2014 Free Software Foundation, Inc. |
| # This file is part of the GNU C Library. |
| |
| # The GNU C Library is free software; you can redistribute it and/or |
| # modify it under the terms of the GNU Lesser General Public |
| # License as published by the Free Software Foundation; either |
| # version 2.1 of the License, or (at your option) any later version. |
| |
| # The GNU C Library is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| # Lesser General Public License for more details. |
| |
| # You should have received a copy of the GNU Lesser General Public |
| # License along with the GNU C Library; if not, see |
| # <http://www.gnu.org/licenses/>. |
| |
| # Makefile for the math library. |
| |
| subdir := math |
| |
| # Installed header files. |
| headers := math.h bits/mathcalls.h bits/mathinline.h bits/huge_val.h \ |
| bits/huge_valf.h bits/huge_vall.h bits/inf.h bits/nan.h \ |
| fpu_control.h complex.h bits/cmathcalls.h fenv.h \ |
| bits/fenv.h bits/fenvinline.h bits/mathdef.h tgmath.h \ |
| bits/math-finite.h |
| |
| # FPU support code. |
| aux := setfpucw fpu_control |
| |
| # Build the -lm library. |
| |
| extra-libs := libm |
| extra-libs-others = $(extra-libs) |
| |
| libm-support = k_standard s_lib_version s_matherr s_signgam \ |
| fclrexcpt fgetexcptflg fraiseexcpt fsetexcptflg \ |
| ftestexcept fegetround fesetround fegetenv feholdexcpt \ |
| fesetenv feupdateenv t_exp fedisblxcpt feenablxcpt \ |
| fegetexcept |
| libm-calls = e_acos e_acosh e_asin e_atan2 e_atanh e_cosh e_exp e_fmod \ |
| e_hypot e_j0 e_j1 e_jn e_lgamma_r e_log e_log10 e_pow \ |
| e_rem_pio2 e_remainder e_scalb e_sinh e_sqrt e_gamma_r \ |
| e_ilogb \ |
| k_cos k_rem_pio2 k_sin k_tan s_asinh s_atan s_cbrt \ |
| s_ceil s_cos s_erf s_expm1 s_fabs \ |
| s_floor s_log1p s_logb \ |
| s_nextafter s_nexttoward s_rint s_scalbln \ |
| s_significand s_sin s_tan s_tanh w_acos w_acosh w_asin \ |
| w_atan2 w_atanh w_cosh w_drem w_exp w_exp2 w_exp10 w_fmod \ |
| w_tgamma w_hypot w_j0 w_j1 w_jn w_lgamma w_lgamma_r \ |
| w_log w_log10 w_pow w_remainder w_scalb w_sinh w_sqrt \ |
| w_ilogb \ |
| s_fpclassify s_fmax s_fmin s_fdim s_nan s_trunc \ |
| s_remquo e_log2 e_exp2 s_round s_nearbyint s_sincos \ |
| conj cimag creal cabs carg s_cexp s_csinh s_ccosh s_clog \ |
| s_catan s_casin s_ccos s_csin s_ctan s_ctanh s_cacos \ |
| s_casinh s_cacosh s_catanh s_csqrt s_cpow s_cproj s_clog10 \ |
| s_fma s_lrint s_llrint s_lround s_llround e_exp10 w_log2 \ |
| s_isinf_ns s_issignaling $(calls:s_%=m_%) x2y2m1 k_casinh \ |
| gamma_product |
| |
| include ../Makeconfig |
| |
| dbl-only-routines := branred doasin dosincos halfulp mpa mpatan2 \ |
| mpatan mpexp mplog mpsqrt mptan sincos32 slowexp \ |
| slowpow sincostab |
| libm-routines = $(strip $(libm-support) $(libm-calls) \ |
| $(patsubst %_rf,%f_r,$(libm-calls:=f)) \ |
| $(long-m-$(long-double-fcts))) \ |
| $(dbl-only-routines) |
| long-m-routines = $(patsubst %_rl,%l_r,$(libm-calls:=l)) |
| long-m-support = t_sincosl k_sincosl |
| long-m-yes = $(long-m-routines) $(long-m-support) |
| |
| # These functions are in libc instead of libm because __printf_fp |
| # calls them, so any program using printf will need them linked in, |
| # and we don't want to have to link every program with -lm. |
| # In libm-calls (above), list m_foo in place of s_foo for any |
| # routine that should be compiled separately for its libc and libm versions. |
| calls = s_isinf s_isnan s_finite s_copysign s_modf s_scalbn s_frexp s_ldexp \ |
| s_signbit |
| generated += $(foreach s,.c .S l.c l.S f.c f.S,$(calls:s_%=m_%$s)) |
| routines = $(calls) $(calls:=f) $(long-c-$(long-double-fcts)) |
| long-c-yes = $(calls:=l) |
| |
| # Rules for the test suite. |
| tests = test-matherr test-fenv atest-exp atest-sincos atest-exp2 basic-test \ |
| test-misc test-fpucw test-fpucw-ieee tst-definitions test-tgmath \ |
| test-tgmath-ret bug-nextafter bug-nexttoward bug-tgmath1 \ |
| test-tgmath-int test-tgmath2 test-powl tst-CMPLX tst-CMPLX2 test-snan \ |
| test-nan-overflow test-nan-payload \ |
| test-fenv-tls $(tests-static) |
| tests-static = test-fpucw-static test-fpucw-ieee-static |
| # We do the `long double' tests only if this data type is available and |
| # distinct from `double'. |
| test-longdouble-yes = test-ldouble test-ildoubl |
| |
| ifneq (no,$(PERL)) |
| libm-tests = test-float test-double $(test-longdouble-$(long-double-fcts)) \ |
| test-ifloat test-idouble |
| libm-tests.o = $(addsuffix .o,$(libm-tests)) |
| |
| tests += $(libm-tests) |
| libm-tests-generated = libm-test-ulps.h libm-test.c |
| generated += $(libm-tests-generated) libm-test.stmp |
| |
| # This is needed for dependencies |
| before-compile += $(objpfx)libm-test.c |
| |
| ulps-file = $(firstword $(wildcard $(sysdirs:%=%/libm-test-ulps))) |
| |
| $(addprefix $(objpfx), $(libm-tests-generated)): $(objpfx)libm-test.stmp |
| |
| $(objpfx)libm-test.stmp: $(ulps-file) libm-test.inc gen-libm-test.pl \ |
| auto-libm-test-out |
| $(make-target-directory) |
| $(PERL) gen-libm-test.pl -u $< -o "$(objpfx)" |
| @echo > $@ |
| |
| $(objpfx)test-float.o: $(objpfx)libm-test.stmp |
| $(objpfx)test-ifloat.o: $(objpfx)libm-test.stmp |
| $(objpfx)test-double.o: $(objpfx)libm-test.stmp |
| $(objpfx)test-idouble.o: $(objpfx)libm-test.stmp |
| $(objpfx)test-ldouble.o: $(objpfx)libm-test.stmp |
| $(objpfx)test-ildoubl.o: $(objpfx)libm-test.stmp |
| endif |
| |
| CFLAGS-test-float.c = -fno-inline -ffloat-store -fno-builtin -frounding-math |
| CFLAGS-test-double.c = -fno-inline -ffloat-store -fno-builtin -frounding-math |
| CFLAGS-test-ldouble.c = -fno-inline -ffloat-store -fno-builtin -frounding-math |
| CFLAGS-test-tgmath.c = -fno-builtin |
| # The following testcase uses very long lines (>3 million), so it may take a |
| # while to compile it. See: http://llvm.org/bugs/show_bug.cgi?id=14106 and |
| # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54402 |
| CFLAGS-test-tgmath2.c = -fno-builtin |
| CFLAGS-test-tgmath-ret.c = -fno-builtin |
| CFLAGS-test-powl.c = -fno-builtin |
| CFLAGS-test-test-fenv.c = -frounding-math |
| CFLAGS-test-misc.c = -frounding-math |
| CPPFLAGS-test-ifloat.c = -U__LIBC_INTERNAL_MATH_INLINES -D__FAST_MATH__ \ |
| -DTEST_FAST_MATH -fno-builtin -frounding-math |
| CPPFLAGS-test-idouble.c = -U__LIBC_INTERNAL_MATH_INLINES -D__FAST_MATH__ \ |
| -DTEST_FAST_MATH -fno-builtin -frounding-math |
| CPPFLAGS-test-ildoubl.c = -U__LIBC_INTERNAL_MATH_INLINES -D__FAST_MATH__ \ |
| -DTEST_FAST_MATH -fno-builtin -frounding-math |
| |
| |
| # The -lieee module sets the _LIB_VERSION_ switch to IEEE mode |
| # for error handling in the -lm functions. |
| install-lib += libieee.a |
| non-lib.a += libieee.a |
| extra-objs += libieee.a ieee-math.o |
| |
| include ../Rules |
| |
| ifneq (no,$(PERL)) |
| # Run the math programs to automatically generate ULPs files. |
| .PHONY: regen-ulps |
| |
| run-regen-ulps = $(test-wrapper-env) \ |
| GCONV_PATH=$(common-objpfx)iconvdata LC_ALL=C \ |
| $($*-ENV) $(rtld-prefix) $${run} |
| |
| regen-ulps: $(addprefix $(objpfx),$(libm-tests)) |
| rm -f $(objpfx)ULPs; rm -f $(objpfx)NewUlps; \ |
| cp $(ulps-file) $(objpfx)libm-test-ulps; \ |
| for run in $^; do \ |
| echo "Regenerating ULPs for $${run}"; \ |
| $(run-regen-ulps) -u -o $(objpfx); \ |
| cat $(objpfx)ULPs >> $(objpfx)libm-test-ulps; \ |
| rm $(objpfx)ULPs; \ |
| done; \ |
| $(PERL) gen-libm-test.pl -o $(objpfx) -n -u $(objpfx)libm-test-ulps; \ |
| echo "Automatic regeneration of ULPs complete."; \ |
| echo "Difference between the current baseline and the new baseline is:";\ |
| diff -urN $(ulps-file) $(objpfx)NewUlps; \ |
| echo "Copy $(objpfx)NewUlps to $(ulps-file) (relative to source)." |
| else |
| regen-ulps: |
| @echo "Automatic regeneration of ULPs requires perl."; \ |
| exit 1; |
| endif |
| |
| # The generated sysd-rules file defines rules like this for sources |
| # coming from sysdeps/ directories. These rules find the generic sources. |
| define o-iterator-doit |
| $(objpfx)m_%$o: s_%.c $(before-compile); $$(compile-command.c) |
| endef |
| object-suffixes-left := $(all-object-suffixes) |
| include $(o-iterator) |
| |
| |
| # This file defines the default _LIB_VERSION variable that controls |
| # the error return conventions for the math functions. |
| CPPFLAGS-s_lib_version.c := -D_POSIX_MODE |
| |
| # We don't want the fdlibm code to use the inline math functions, |
| # only the fdlibm code. |
| math-CPPFLAGS += -D__NO_MATH_INLINES -D__LIBC_INTERNAL_MATH_INLINES |
| |
| ifneq ($(long-double-fcts),yes) |
| # The `double' and `long double' types are the same on this machine. |
| # We won't compile the `long double' code at all. Tell the `double' code |
| # to define aliases for the `FUNCl' names. To avoid type conflicts in |
| # defining those aliases, tell <math.h> to declare the `FUNCl' names with |
| # `double' instead of `long double'. |
| math-CPPFLAGS += -DNO_LONG_DOUBLE -D_Mlong_double_=double |
| endif |
| |
| # The fdlibm code generates a lot of these warnings but is otherwise clean. |
| override CFLAGS += -Wno-uninitialized |
| |
| # The -lieee library is actually an object file. |
| # The module just defines the _LIB_VERSION_ variable. |
| # It's not a library to make sure it is linked in instead of s_lib_version.o. |
| $(objpfx)libieee.a: $(objpfx)ieee-math.o |
| rm -f $@ |
| $(patsubst %/,cd % &&,$(objpfx)) \ |
| $(LN_S) $(<F) $(@F) |
| |
| ifeq ($(build-shared),yes) |
| $(addprefix $(objpfx),$(filter-out $(tests-static),$(tests))): $(objpfx)libm.so$(libm.so-version) |
| $(addprefix $(objpfx),$(tests-static)): $(objpfx)libm.a |
| else |
| $(addprefix $(objpfx),$(tests)): $(objpfx)libm.a |
| endif |
| |
| gmp-objs = $(patsubst %,$(common-objpfx)stdlib/%.o,\ |
| add_n sub_n cmp addmul_1 mul_1 mul_n divmod_1 \ |
| lshift rshift mp_clz_tab udiv_qrnnd inlines \ |
| $(gmp-sysdep_routines)) |
| $(objpfx)atest-exp: $(gmp-objs) |
| $(objpfx)atest-sincos: $(gmp-objs) |
| $(objpfx)atest-exp2: $(gmp-objs) |
| $(objpfx)test-fenv-tls: $(common-objpfx)nptl/libpthread.so |
