mirror of
git://sourceware.org/git/glibc.git
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0ac5ae2335
libm is now somewhat integrated with gcc's -ffinite-math-only option and lots of the wrapper functions have been optimized.
218 lines
8.3 KiB
Makefile
218 lines
8.3 KiB
Makefile
# Copyright (C) 1996-2006,2011 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library; if not, write to the Free
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# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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# 02111-1307 USA.
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# Makefile for the math library.
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subdir := math
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# Installed header files.
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headers := math.h bits/mathcalls.h bits/mathinline.h bits/huge_val.h \
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bits/huge_valf.h bits/huge_vall.h bits/inf.h bits/nan.h \
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fpu_control.h complex.h bits/cmathcalls.h fenv.h \
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bits/fenv.h bits/fenvinline.h bits/mathdef.h tgmath.h \
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bits/math-finite.h
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# Internal header files.
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distribute := math_ldbl.h math_private.h machine/asm.h
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# FPU support code.
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aux := setfpucw fpu_control
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# Build the -lm library.
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extra-libs := libm
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extra-libs-others = $(extra-libs)
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libm-support = k_standard s_lib_version s_matherr s_signgam \
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fclrexcpt fgetexcptflg fraiseexcpt fsetexcptflg \
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ftestexcept fegetround fesetround fegetenv feholdexcpt \
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fesetenv feupdateenv t_exp fedisblxcpt feenablxcpt \
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fegetexcept
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libm-calls = e_acos e_acosh e_asin e_atan2 e_atanh e_cosh e_exp e_fmod \
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e_hypot e_j0 e_j1 e_jn e_lgamma_r e_log e_log10 e_pow \
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e_rem_pio2 e_remainder e_scalb e_sinh e_sqrt e_gamma_r \
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k_cos k_rem_pio2 k_sin k_tan s_asinh s_atan s_cbrt \
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s_ceil s_cos s_erf s_expm1 s_fabs \
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s_floor s_ilogb s_log1p s_logb \
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s_nextafter s_nexttoward s_rint s_scalbln \
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s_significand s_sin s_tan s_tanh w_acos w_acosh w_asin \
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w_atan2 w_atanh w_cosh w_drem w_exp w_exp2 w_exp10 w_fmod \
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w_tgamma w_hypot w_j0 w_j1 w_jn w_lgamma w_lgamma_r \
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w_log w_log10 w_pow w_remainder w_scalb w_sinh w_sqrt \
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s_fpclassify s_fmax s_fmin s_fdim s_nan s_trunc \
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s_remquo e_log2 e_exp2 s_round s_nearbyint s_sincos \
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conj cimag creal cabs carg s_cexp s_csinh s_ccosh s_clog \
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s_catan s_casin s_ccos s_csin s_ctan s_ctanh s_cacos \
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s_casinh s_cacosh s_catanh s_csqrt s_cpow s_cproj s_clog10 \
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s_fma s_lrint s_llrint s_lround s_llround e_exp10 w_log2 \
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s_isinf_ns $(calls:s_%=m_%)
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include ../Makeconfig
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dbl-only-routines := branred doasin dosincos halfulp mpa mpatan2 \
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mpatan mpexp mplog mpsqrt mptan sincos32 slowexp \
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slowpow
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libm-routines = $(strip $(libm-support) $(libm-calls) \
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$(patsubst %_rf,%f_r,$(libm-calls:=f)) \
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$(long-m-$(long-double-fcts))) \
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$(dbl-only-routines)
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long-m-routines = $(patsubst %_rl,%l_r,$(libm-calls:=l))
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long-m-support = t_sincosl k_sincosl
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long-m-yes = $(long-m-routines) $(long-m-support)
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# These functions are in libc instead of libm because __printf_fp
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# calls them, so any program using printf will need them linked in,
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# and we don't want to have to link every program with -lm.
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# In libm-calls (above), list m_foo in place of s_foo for any
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# routine that should be compiled separately for its libc and libm versions.
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calls = s_isinf s_isnan s_finite s_copysign s_modf s_scalbn s_frexp s_ldexp \
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s_signbit
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generated += $(foreach s,.c .S l.c l.S f.c f.S,$(calls:s_%=m_%$s))
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routines = $(calls) $(calls:=f) $(long-c-$(long-double-fcts))
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long-c-yes = $(calls:=l)
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distribute += $(filter-out $(generated),$(long-m-yes:=.c) $(long-c-yes:=.c))
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# Rules for the test suite.
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tests = test-matherr test-fenv atest-exp atest-sincos atest-exp2 basic-test \
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test-misc test-fpucw tst-definitions test-tgmath test-tgmath-ret \
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bug-nextafter bug-nexttoward bug-tgmath1 test-tgmath-int \
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test-tgmath2 test-powl
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# We do the `long double' tests only if this data type is available and
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# distinct from `double'.
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test-longdouble-yes = test-ldouble test-ildoubl
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distribute += $(test-longdouble-yes:=.c)
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ifneq (no,$(PERL))
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libm-tests = test-float test-double $(test-longdouble-$(long-double-fcts)) \
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test-ifloat test-idouble
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libm-tests.o = $(addsuffix .o,$(libm-tests))
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tests += $(libm-tests)
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libm-tests-generated = libm-test-ulps.h libm-test.c
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generated += $(libm-tests-generated) libm-test.stmp
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# This is needed for dependencies
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before-compile += $(objpfx)libm-test.c
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ulps-file = $(firstword $(wildcard $(sysdirs:%=%/libm-test-ulps)))
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$(addprefix $(objpfx), $(libm-tests-generated)): $(objpfx)libm-test.stmp
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$(objpfx)libm-test.stmp: $(ulps-file) libm-test.inc gen-libm-test.pl
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$(make-target-directory)
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$(PERL) gen-libm-test.pl -u $< -o "$(objpfx)"
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@echo > $@
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$(objpfx)test-float.o: $(objpfx)libm-test.stmp
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$(objpfx)test-ifloat.o: $(objpfx)libm-test.stmp
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$(objpfx)test-double.o: $(objpfx)libm-test.stmp
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$(objpfx)test-idouble.o: $(objpfx)libm-test.stmp
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$(objpfx)test-ldouble.o: $(objpfx)libm-test.stmp
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$(objpfx)test-ildoubl.o: $(objpfx)libm-test.stmp
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endif
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CFLAGS-test-float.c = -fno-inline -ffloat-store -fno-builtin
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CFLAGS-test-double.c = -fno-inline -ffloat-store -fno-builtin
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CFLAGS-test-ldouble.c = -fno-inline -ffloat-store -fno-builtin
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CFLAGS-test-tgmath.c = -fno-builtin
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CFLAGS-test-tgmath2.c = -fno-builtin
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CFLAGS-test-tgmath-ret.c = -fno-builtin
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CFLAGS-test-powl.c = -fno-builtin
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CPPFLAGS-test-ifloat.c = -U__LIBC_INTERNAL_MATH_INLINES -D__FAST_MATH__ \
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-DTEST_FAST_MATH -fno-builtin
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CPPFLAGS-test-idouble.c = -U__LIBC_INTERNAL_MATH_INLINES -D__FAST_MATH__ \
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-DTEST_FAST_MATH -fno-builtin
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CPPFLAGS-test-ildoubl.c = -U__LIBC_INTERNAL_MATH_INLINES -D__FAST_MATH__ \
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-DTEST_FAST_MATH -fno-builtin
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distribute += libm-test.inc gen-libm-test.pl README.libm-test
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# The -lieee module sets the _LIB_VERSION_ switch to IEEE mode
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# for error handling in the -lm functions.
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install-lib += libieee.a
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non-lib.a += libieee.a
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extra-objs += libieee.a ieee-math.o
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distribute += ieee-math.c
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include ../Rules
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# The generated sysd-rules file defines rules like this for sources
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# coming from sysdeps/ directories. These rules find the generic sources.
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define o-iterator-doit
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$(objpfx)m_%$o: s_%.c $(before-compile); $$(compile-command.c)
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endef
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object-suffixes-left := $(all-object-suffixes)
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include $(o-iterator)
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# This file defines the default _LIB_VERSION variable that controls
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# the error return conventions for the math functions.
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CPPFLAGS-s_lib_version.c := -D_POSIX_MODE
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# We don't want the fdlibm code to use the inline math functions,
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# only the fdlibm code.
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math-CPPFLAGS += -D__NO_MATH_INLINES -D__LIBC_INTERNAL_MATH_INLINES
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ifneq ($(long-double-fcts),yes)
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# The `double' and `long double' types are the same on this machine.
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# We won't compile the `long double' code at all. Tell the `double' code
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# to define aliases for the `FUNCl' names. To avoid type conflicts in
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# defining those aliases, tell <math.h> to declare the `FUNCl' names with
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# `double' instead of `long double'.
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math-CPPFLAGS += -DNO_LONG_DOUBLE -D_Mlong_double_=double
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endif
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# The fdlibm code generates a lot of these warnings but is otherwise clean.
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override CFLAGS += -Wno-uninitialized
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# The -lieee library is actually an object file.
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# The module just defines the _LIB_VERSION_ variable.
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# It's not a library to make sure it is linked in instead of s_lib_version.o.
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$(objpfx)libieee.a: $(objpfx)ieee-math.o
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rm -f $@
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$(patsubst %/,cd % &&,$(objpfx)) \
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$(LN_S) $(<F) $(@F)
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ifeq ($(build-shared),yes)
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$(addprefix $(objpfx),$(tests)): $(objpfx)libm.so$(libm.so-version)
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else
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$(addprefix $(objpfx),$(tests)): $(objpfx)libm.a
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endif
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ifeq ($(build-bounded),yes)
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$(tests:%=$(objpfx)%-bp): $(objpfx)libm_b.a
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endif
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ifeq ($(build-static),yes)
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o = .o
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else
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o = .os
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endif
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gmp-objs = $(patsubst %,$(common-objpfx)stdlib/%$o,\
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add_n sub_n cmp addmul_1 mul_1 mul_n divmod_1 \
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lshift rshift mp_clz_tab udiv_qrnnd inlines)
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$(objpfx)atest-exp: $(gmp-objs)
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$(objpfx)atest-sincos: $(gmp-objs)
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$(objpfx)atest-exp2: $(gmp-objs)
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# Depend on libc.so so a DT_NEEDED is generated in the shared objects.
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# This ensures they will load libc.so for needed symbols if loaded by
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# a statically-linked program that hasn't already loaded it.
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$(objpfx)libm.so: $(common-objpfx)libc.so $(common-objpfx)libc_nonshared.a
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