| # 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 test-tgmath2 | |
| # 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-tgmath2.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 <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 $(objpfx),$(tests)): $(objpfx)libm.so$(libm.so-version) | |
| else | |
| $(addprefix $(objpfx),$(tests)): $(objpfx)libm.a | |
| endif | |
| ifeq ($(build-bounded),yes) | |
| $(tests:%=$(objpfx)%-bp): $(objpfx)libm_b.a | |
| endif | |
| ifeq ($(build-static),yes) | |
| o = .o | |
| else | |
| o = .os | |
| 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) | |
| $(objpfx)atest-exp: $(gmp-objs) | |
| $(objpfx)atest-sincos: $(gmp-objs) | |
| $(objpfx)atest-exp2: $(gmp-objs) | |
| # Depend on libc.so so a DT_NEEDED is generated in the shared objects. | |
| # This ensures they will load libc.so for needed symbols if loaded by | |
| # a statically-linked program that hasn't already loaded it. | |
| $(objpfx)libm.so: $(common-objpfx)libc.so $(common-objpfx)libc_nonshared.a |