# Copyright (C) 1996-2001,2002,2003,2004,2005,2006 # 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, write to the Free # Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA # 02111-1307 USA. # 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 # Internal header files. distribute := math_ldbl.h math_private.h machine/asm.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 \ 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_ilogb 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 \ 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 \ $(calls:s_%=m_%) include ../Makeconfig dbl-only-routines := branred doasin dosincos halfulp mpa mpatan2 \ mpatan mpexp mplog mpsqrt mptan sincos32 slowexp \ slowpow 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) distribute += $(filter-out $(generated),$(long-m-yes:=.c) $(long-c-yes:=.c)) # Rules for the test suite. tests = test-matherr test-fenv atest-exp atest-sincos atest-exp2 basic-test \ test-misc test-fpucw tst-definitions test-tgmath test-tgmath-ret \ bug-nextafter bug-nexttoward bug-tgmath1 test-tgmath-int # We do the `long double' tests only if this data type is available and # distinct from `double'. test-longdouble-yes = test-ldouble test-ildoubl distribute += $(test-longdouble-yes:=.c) ifneq (no,$(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 $(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 CFLAGS-test-double.c = -fno-inline -ffloat-store -fno-builtin CFLAGS-test-ldouble.c = -fno-inline -ffloat-store -fno-builtin CFLAGS-test-tgmath.c = -fno-builtin CFLAGS-test-tgmath-ret.c = -fno-builtin CPPFLAGS-test-ifloat.c = -U__LIBC_INTERNAL_MATH_INLINES -D__FAST_MATH__ \ -DTEST_FAST_MATH -fno-builtin CPPFLAGS-test-idouble.c = -U__LIBC_INTERNAL_MATH_INLINES -D__FAST_MATH__ \ -DTEST_FAST_MATH -fno-builtin CPPFLAGS-test-ildoubl.c = -U__LIBC_INTERNAL_MATH_INLINES -D__FAST_MATH__ \ -DTEST_FAST_MATH -fno-builtin distribute += libm-test.inc gen-libm-test.pl README.libm-test # 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 distribute += ieee-math.c include ../Rules # 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 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) $(