| 1 | # Copyright (C) 1996-2001, 2002, 2003, 2004 Free Software Foundation, Inc.
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| 2 | # This file is part of the GNU C Library.
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| 3 |
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| 4 | # The GNU C Library is free software; you can redistribute it and/or
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| 5 | # modify it under the terms of the GNU Lesser General Public
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| 6 | # License as published by the Free Software Foundation; either
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| 7 | # version 2.1 of the License, or (at your option) any later version.
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| 8 |
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| 9 | # The GNU C Library is distributed in the hope that it will be useful,
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| 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 12 | # Lesser General Public License for more details.
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| 13 |
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| 14 | # You should have received a copy of the GNU Lesser General Public
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| 15 | # License along with the GNU C Library; if not, write to the Free
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| 16 | # Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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| 17 | # 02111-1307 USA.
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| 18 |
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| 19 | # Makefile for the math library.
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| 20 |
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| 21 | subdir := math
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| 22 |
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| 23 | # Installed header files.
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| 24 | headers := math.h bits/mathcalls.h bits/mathinline.h bits/huge_val.h \
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| 25 | bits/huge_valf.h bits/huge_vall.h bits/inf.h bits/nan.h \
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| 26 | fpu_control.h complex.h bits/cmathcalls.h fenv.h \
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| 27 | bits/fenv.h bits/fenvinline.h bits/mathdef.h tgmath.h
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| 28 |
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| 29 | # Internal header files.
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| 30 | distribute := math_ldbl.h math_private.h machine/asm.h
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| 31 |
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| 32 | # FPU support code.
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| 33 | aux := setfpucw fpu_control
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| 34 |
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| 35 | # Build the -lm library.
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| 36 |
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| 37 | extra-libs := libm
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| 38 | extra-libs-others = $(extra-libs)
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| 39 |
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| 40 | libm-support = k_standard s_lib_version s_matherr s_signgam \
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| 41 | fclrexcpt fgetexcptflg fraiseexcpt fsetexcptflg \
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| 42 | ftestexcept fegetround fesetround fegetenv feholdexcpt \
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| 43 | fesetenv feupdateenv t_exp fedisblxcpt feenablxcpt \
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| 44 | fegetexcept
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| 45 | libm-calls = e_acos e_acosh e_asin e_atan2 e_atanh e_cosh e_exp e_fmod \
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| 46 | e_hypot e_j0 e_j1 e_jn e_lgamma_r e_log e_log10 e_pow \
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| 47 | e_rem_pio2 e_remainder e_scalb e_sinh e_sqrt e_gamma_r \
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| 48 | k_cos k_rem_pio2 k_sin k_tan s_asinh s_atan s_cbrt \
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| 49 | s_ceil s_cos s_erf s_expm1 s_fabs \
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| 50 | s_floor s_ilogb s_log1p s_logb \
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| 51 | s_nextafter s_nexttoward s_rint s_scalbln \
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| 52 | s_significand s_sin s_tan s_tanh w_acos w_acosh w_asin \
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| 53 | w_atan2 w_atanh w_cosh w_drem w_exp w_exp2 w_exp10 w_fmod \
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| 54 | w_tgamma w_hypot w_j0 w_j1 w_jn w_lgamma w_lgamma_r \
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| 55 | w_log w_log10 w_pow w_remainder w_scalb w_sinh w_sqrt \
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| 56 | s_fpclassify s_fmax s_fmin s_fdim s_nan s_trunc \
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| 57 | s_remquo e_log2 e_exp2 s_round s_nearbyint s_sincos \
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| 58 | conj cimag creal cabs carg s_cexp s_csinh s_ccosh s_clog \
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| 59 | s_catan s_casin s_ccos s_csin s_ctan s_ctanh s_cacos \
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| 60 | s_casinh s_cacosh s_catanh s_csqrt s_cpow s_cproj s_clog10 \
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| 61 | s_fma s_lrint s_llrint s_lround s_llround e_exp10 w_log2 \
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| 62 | $(calls:s_%=m_%)
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| 63 |
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| 64 | include ../Makeconfig
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| 65 |
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| 66 | dbl-only-routines := branred doasin dosincos halfulp mpa mpatan2 \
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| 67 | mpatan mpexp mplog mpsqrt mptan sincos32 slowexp \
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| 68 | slowpow
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| 69 | libm-routines = $(strip $(libm-support) $(libm-calls) \
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| 70 | $(patsubst %_rf,%f_r,$(libm-calls:=f)) \
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| 71 | $(long-m-$(long-double-fcts))) \
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| 72 | $(dbl-only-routines)
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| 73 | long-m-routines = $(patsubst %_rl,%l_r,$(libm-calls:=l))
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| 74 | long-m-support = t_sincosl k_sincosl
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| 75 | long-m-yes = $(long-m-routines) $(long-m-support)
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| 76 |
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| 77 | # These functions are in libc instead of libm because __printf_fp
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| 78 | # calls them, so any program using printf will need them linked in,
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| 79 | # and we don't want to have to link every program with -lm.
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| 80 | # In libm-calls (above), list m_foo in place of s_foo for any
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| 81 | # routine that should be compiled separately for its libc and libm versions.
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| 82 | calls = s_isinf s_isnan s_finite s_copysign s_modf s_scalbn s_frexp s_ldexp \
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| 83 | s_signbit
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| 84 | generated += $(foreach s,.c .S l.c l.S f.c f.S,$(calls:s_%=m_%$s))
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| 85 | routines = $(calls) $(calls:=f) $(long-c-$(long-double-fcts))
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| 86 | long-c-yes = $(calls:=l)
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| 87 | distribute += $(filter-out $(generated),$(long-m-yes:=.c) $(long-c-yes:=.c))
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| 88 |
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| 89 | # Rules for the test suite.
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| 90 | tests = test-matherr test-fenv atest-exp atest-sincos atest-exp2 basic-test \
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| 91 | test-misc test-fpucw tst-definitions test-tgmath test-tgmath-ret \
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| 92 | bug-nextafter bug-nexttoward bug-tgmath1
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| 93 | # We do the `long double' tests only if this data type is available and
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| 94 | # distinct from `double'.
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| 95 | test-longdouble-yes = test-ldouble test-ildoubl
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| 96 | distribute += $(test-longdouble-yes:=.c)
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| 97 |
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| 98 | ifneq (no,$(PERL))
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| 99 | libm-tests = test-float test-double $(test-longdouble-$(long-double-fcts)) \
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| 100 | test-ifloat test-idouble
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| 101 | libm-tests.o = $(addsuffix .o,$(libm-tests))
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| 102 |
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| 103 | tests += $(libm-tests)
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| 104 | libm-tests-generated = libm-test-ulps.h libm-test.c
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| 105 | generated += $(libm-tests-generated) libm-test.stmp
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| 106 |
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| 107 | # This is needed for dependencies
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| 108 | before-compile += $(objpfx)libm-test.c
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| 109 |
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| 110 | ulps-file = $(firstword $(wildcard $(config-sysdirs:%=$(..)%/libm-test-ulps)))
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| 111 |
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| 112 | $(addprefix $(objpfx), $(libm-tests-generated)): $(objpfx)libm-test.stmp
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| 113 |
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| 114 | $(objpfx)libm-test.stmp: $(ulps-file) libm-test.inc gen-libm-test.pl
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| 115 | $(make-target-directory)
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| 116 | $(PERL) gen-libm-test.pl -u $< -o "$(objpfx)"
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| 117 | @echo > $@
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| 118 |
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| 119 | $(objpfx)test-float.o: $(objpfx)libm-test.stmp
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| 120 | $(objpfx)test-ifloat.o: $(objpfx)libm-test.stmp
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| 121 | $(objpfx)test-double.o: $(objpfx)libm-test.stmp
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| 122 | $(objpfx)test-idouble.o: $(objpfx)libm-test.stmp
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| 123 | $(objpfx)test-ldouble.o: $(objpfx)libm-test.stmp
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| 124 | $(objpfx)test-ildoubl.o: $(objpfx)libm-test.stmp
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| 125 | endif
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| 126 |
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| 127 | CFLAGS-test-float.c = -fno-inline -ffloat-store -fno-builtin
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| 128 | CFLAGS-test-double.c = -fno-inline -ffloat-store -fno-builtin
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| 129 | CFLAGS-test-ldouble.c = -fno-inline -ffloat-store -fno-builtin
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| 130 | CFLAGS-test-tgmath.c = -fno-builtin
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| 131 | CFLAGS-test-tgmath-ret.c = -fno-builtin
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| 132 | CPPFLAGS-test-ifloat.c = -U__LIBC_INTERNAL_MATH_INLINES -D__FAST_MATH__ \
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| 133 | -DTEST_FAST_MATH -fno-builtin
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| 134 | CPPFLAGS-test-idouble.c = -U__LIBC_INTERNAL_MATH_INLINES -D__FAST_MATH__ \
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| 135 | -DTEST_FAST_MATH -fno-builtin
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| 136 | CPPFLAGS-test-ildoubl.c = -U__LIBC_INTERNAL_MATH_INLINES -D__FAST_MATH__ \
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| 137 | -DTEST_FAST_MATH -fno-builtin
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| 138 |
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| 139 | distribute += libm-test.inc gen-libm-test.pl README.libm-test
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| 140 |
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| 141 |
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| 142 | # The -lieee module sets the _LIB_VERSION_ switch to IEEE mode
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| 143 | # for error handling in the -lm functions.
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| 144 | install-lib += libieee.a
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| 145 | non-lib.a += libieee.a
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| 146 | extra-objs += libieee.a ieee-math.o
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| 147 | distribute += ieee-math.c
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| 148 |
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| 149 | include ../Rules
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| 150 |
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| 151 |
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| 152 | # This file defines the default _LIB_VERSION variable that controls
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| 153 | # the error return conventions for the math functions.
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| 154 | CPPFLAGS-s_lib_version.c := -D_POSIX_MODE
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| 155 |
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| 156 | # We don't want the fdlibm code to use the inline math functions,
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| 157 | # only the fdlibm code.
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| 158 | math-CPPFLAGS += -D__NO_MATH_INLINES -D__LIBC_INTERNAL_MATH_INLINES
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| 159 |
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| 160 | ifneq ($(long-double-fcts),yes)
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| 161 | # The `double' and `long double' types are the same on this machine.
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| 162 | # We won't compile the `long double' code at all. Tell the `double' code
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| 163 | # to define aliases for the `FUNCl' names. To avoid type conflicts in
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| 164 | # defining those aliases, tell <math.h> to declare the `FUNCl' names with
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| 165 | # `double' instead of `long double'.
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| 166 | math-CPPFLAGS += -DNO_LONG_DOUBLE -D_Mlong_double_=double
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| 167 | endif
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| 168 |
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| 169 | # The fdlibm code generates a lot of these warnings but is otherwise clean.
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| 170 | override CFLAGS += -Wno-uninitialized
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| 171 |
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| 172 | # The -lieee library is actually an object file.
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| 173 | # The module just defines the _LIB_VERSION_ variable.
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| 174 | # It's not a library to make sure it is linked in instead of s_lib_version.o.
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| 175 | $(objpfx)libieee.a: $(objpfx)ieee-math.o
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| 176 | rm -f $@
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| 177 | $(patsubst %/,cd % &&,$(objpfx)) \
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| 178 | $(LN_S) $(<F) $(@F)
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| 179 |
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| 180 | ifeq ($(build-shared),yes)
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| 181 | $(addprefix $(objpfx),$(tests)): $(objpfx)libm.so$(libm.so-version)
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| 182 | else
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| 183 | $(addprefix $(objpfx),$(tests)): $(objpfx)libm.a
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| 184 | endif
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| 185 | ifeq ($(build-bounded),yes)
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| 186 | $(tests:%=$(objpfx)%-bp): $(objpfx)libm_b.a
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| 187 | endif
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| 188 |
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| 189 | ifeq ($(build-static),yes)
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| 190 | o = .o
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| 191 | else
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| 192 | o = .os
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| 193 | endif
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| 194 | gmp-objs = $(patsubst %,$(common-objpfx)stdlib/%$o,\
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| 195 | add_n sub_n cmp addmul_1 mul_1 mul_n divmod_1 \
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| 196 | lshift rshift mp_clz_tab udiv_qrnnd inlines)
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| 197 | $(objpfx)atest-exp: $(gmp-objs)
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| 198 | $(objpfx)atest-sincos: $(gmp-objs)
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| 199 | $(objpfx)atest-exp2: $(gmp-objs)
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| 200 |
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| 201 | # Depend on libc.so so a DT_NEEDED is generated in the shared objects.
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| 202 | # This ensures they will load libc.so for needed symbols if loaded by
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| 203 | # a statically-linked program that hasn't already loaded it.
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| 204 | $(objpfx)libm.so: $(common-objpfx)libc.so $(common-objpfx)libc_nonshared.a
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