# Makefile for uClibc # # Copyright (C) 2000-2008 Erik Andersen <andersen@uclibc.org> # # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # # The routines included in this math library are derived from the # math library for Apple's MacOS X/Darwin math library, which was # itself swiped from FreeBSD. The original copyright information # is as follows: # # Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. # # Developed at SunPro, a Sun Microsystems, Inc. business. # Permission to use, copy, modify, and distribute this # software is freely granted, provided that this notice # is preserved. # # It has been ported to work with uClibc and generally behave # by Erik Andersen <andersen@codepoet.org> # subdirs += libm libm/$(TARGET_ARCH) CFLAGS-libm := -DNOT_IN_libc -DIS_IN_libm $(SSP_ALL_CFLAGS) CFLAGS-libm += -D_IEEE_LIBM LDFLAGS-$(UCLIBC_FORMAT_DSBT_ELF)-libm.so := -Wl,--dsbt-index=5 LDFLAGS-libm.so := $(LDFLAGS) LIBS-libm.so := $(LIBS) libm_FULL_NAME := libm-$(VERSION).so libm_DIR:=$(top_srcdir)libm libm_OUT:=$(top_builddir)libm libm_ARCH_DIR:=$(libm_DIR)/$(TARGET_ARCH) libm_ARCH_OUT:=$(libm_OUT)/$(TARGET_ARCH) ifneq ($(TARGET_SUBARCH),) libm_SUBARCH_DIR:=$(libm_DIR)/$(TARGET_ARCH)/$(TARGET_SUBARCH) libm_SUBARCH_OUT:=$(libm_OUT)/$(TARGET_ARCH)/$(TARGET_SUBARCH) endif ifeq ($(UCLIBC_HAS_FPU),y) ifeq ($(DO_C99_MATH),y) -include $(libm_ARCH_DIR)/Makefile.arch -include $(libm_SUBARCH_DIR)/Makefile.arch endif endif FL_MSRC := float_wrappers.c LD_MSRC := ldouble_wrappers.c ifeq ($(DO_C99_MATH),y) libm_CSRC := \ e_acos.c e_acosh.c e_asin.c e_atan2.c e_atanh.c e_cosh.c \ e_exp.c e_fmod.c e_hypot.c \ e_lgamma_r.c e_log.c e_log2.c e_log10.c \ e_pow.c e_remainder.c e_rem_pio2.c e_scalb.c e_sinh.c \ e_sqrt.c k_cos.c k_rem_pio2.c k_sin.c k_standard.c k_tan.c \ s_asinh.c s_atan.c s_cbrt.c s_ceil.c s_copysign.c s_cos.c \ s_erf.c s_expm1.c s_fabs.c s_finite.c s_floor.c s_frexp.c \ s_ilogb.c s_ldexp.c s_lib_version.c s_lrint.c s_lround.c s_llround.c \ s_log1p.c s_logb.c s_matherr.c s_modf.c s_nextafter.c \ s_nextafterf.c s_round.c \ s_rint.c s_scalbn.c s_signgam.c s_significand.c s_sin.c s_tan.c \ s_tanh.c s_trunc.c \ w_cabs.c \ nan.c carg.c s_llrint.c \ s_fpclassify.c s_fpclassifyf.c s_signbit.c s_signbitf.c \ s_isnan.c s_isnanf.c s_isinf.c s_isinff.c s_finitef.c \ s_fdim.c s_fma.c s_fmax.c s_fmin.c \ s_remquo.c w_exp2.c \ cexp.c sincos.c # Not implemented [yet?], see comment in float_wrappers.c: # fdimf.o fmaf.o fmaxf.o fminf.o # nearbyintf.o remquof.o scalblnf.o tgammaf.o FL_MOBJ := \ acosf.o \ acoshf.o \ asinf.o \ asinhf.o \ atan2f.o \ atanf.o \ atanhf.o \ cargf.o \ cbrtf.o \ ceilf.o \ copysignf.o \ cosf.o \ coshf.o \ erfcf.o \ erff.o \ exp2f.o \ expf.o \ expm1f.o \ fabsf.o \ floorf.o \ fmodf.o \ frexpf.o \ gammaf.o \ hypotf.o \ ilogbf.o \ ldexpf.o \ lgammaf.o \ llrintf.o \ llroundf.o \ log10f.o \ log1pf.o \ log2f.o \ logbf.o \ logf.o \ lrintf.o \ lroundf.o \ modff.o \ powf.o \ remainderf.o \ rintf.o \ roundf.o \ scalbf.o \ scalbnf.o \ significandf.o \ sinf.o \ sinhf.o \ sqrtf.o \ tanf.o \ tanhf.o \ truncf.o \ # Not implemented [yet?]: nexttowardl.o LD_MOBJ := \ __finitel.o \ __fpclassifyl.o \ __isinfl.o \ __isnanl.o \ __signbitl.o \ acoshl.o \ acosl.o \ asinhl.o \ asinl.o \ atan2l.o \ atanhl.o \ atanl.o \ cargl.o \ cbrtl.o \ ceill.o \ copysignl.o \ coshl.o \ cosl.o \ erfcl.o \ erfl.o \ exp2l.o \ expl.o \ expm1l.o \ fabsl.o \ fdiml.o \ floorl.o \ fmal.o \ fmaxl.o \ fminl.o \ fmodl.o \ frexpl.o \ gammal.o \ hypotl.o \ ilogbl.o \ ldexpl.o \ lgammal.o \ llrintl.o \ llroundl.o \ log10l.o \ log1pl.o \ log2l.o \ logbl.o \ logl.o \ lrintl.o \ lroundl.o \ modfl.o \ nearbyintl.o \ nextafterl.o \ powl.o \ remainderl.o \ remquol.o \ rintl.o \ roundl.o \ scalblnl.o \ scalbnl.o \ significandl.o \ sinhl.o \ sinl.o \ sqrtl.o \ tanhl.o \ tanl.o \ tgammal.o \ truncl.o \ else # This list of math functions was taken from POSIX/IEEE 1003.1b-1993 libm_CSRC := \ s_atan.c s_ceil.c s_cos.c \ s_fabs.c s_floor.c s_frexp.c \ s_ldexp.c s_modf.c s_sin.c \ s_tan.c s_tanh.c \ s_expm1.c s_scalbn.c s_copysign.c e_acos.c e_asin.c e_atan2.c \ k_cos.c e_cosh.c e_exp.c e_fmod.c e_log.c e_log10.c e_pow.c \ k_sin.c e_sinh.c e_sqrt.c k_tan.c e_rem_pio2.c k_rem_pio2.c \ s_finite.c # We'll add sqrtf to avoid problems with libstdc++ FL_MOBJ := sqrtf.o endif ifeq ($(DO_XSI_MATH),y) libm_CSRC += e_j0.c e_j1.c e_jn.c endif # assume that arch specific versions are provided as single sources/objects ifeq ($(UCLIBC_HAS_FPU),y) ifeq ($(DO_C99_MATH),y) ifneq ($(strip $(libm_ARCH_OBJS)),) CFLAGS-libm/$(TARGET_ARCH)/ := $(CFLAGS-libm) CFLAGS-libm/$(TARGET_ARCH)/$(TARGET_SUBARCH)/ := $(CFLAGS-libm) # remove generic sources, if arch specific version is present ifneq ($(strip $(libm_ARCH_SRC)),) libm_CSRC := $(filter-out $(notdir $(libm_ARCH_SRC)),$(libm_CSRC)) endif # remove generic objects built from multi-sources, if arch specific version is present FL_MOBJ := $(filter-out $(notdir $(libm_ARCH_OBJS)),$(FL_MOBJ)) LD_MOBJ := $(filter-out $(notdir $(libm_ARCH_OBJS)),$(LD_MOBJ)) # we also try to remove % if s_% is in arch specific subdir FL_MOBJ := $(filter-out $(patsubst s_%.o,%.o,$(notdir $(libm_ARCH_OBJS))),$(FL_MOBJ)) LD_MOBJ := $(filter-out $(patsubst s_%.o,%.o,$(notdir $(libm_ARCH_OBJS))),$(LD_MOBJ)) endif endif endif libm_SRC := $(patsubst %.c,$(libm_DIR)/%.c,$(libm_CSRC)) libm_OBJ := $(patsubst $(libm_DIR)/%.c,$(libm_OUT)/%.o,$(libm_SRC)) ifeq ($(strip $(UCLIBC_HAS_LONG_DOUBLE_MATH)),y) libm_MSRC_LD := $(libm_DIR)/$(LD_MSRC) libm_MOBJ_LD := $(patsubst %.o,$(libm_OUT)/%.o,$(LD_MOBJ)) endif libm_MSRC_FL := $(libm_DIR)/$(FL_MSRC) libm_MOBJ_FL := $(patsubst %.o,$(libm_OUT)/%.o,$(FL_MOBJ)) ifneq ($(DOMULTI),n) CFLAGS-libm += $(patsubst %,-DL_%,$(subst .o,,$(notdir $(libm_MOBJ_FL)))) ifeq ($(strip $(UCLIBC_HAS_LONG_DOUBLE_MATH)),y) CFLAGS-libm += $(patsubst %,-DL_%,$(subst .o,,$(notdir $(libm_MOBJ_LD)))) endif endif libm_OBJS := $(libm_OBJ) $(libm_MOBJ_FL) $(libm_MOBJ_LD) ifeq ($(DOPIC),y) libm-a-y += $(libm_OBJS:.o=.os) else libm-a-y += $(libm_OBJS) endif libm-so-y += $(libm_OBJS:.o=.os) lib-a-$(UCLIBC_HAS_FLOATS) += $(top_builddir)lib/libm.a lib-so-$(UCLIBC_HAS_FLOATS) += $(top_builddir)lib/libm.so objclean-y += CLEAN_libm ifeq ($(DOMULTI),n) ifeq ($(DOPIC),y) $(top_builddir)lib/libm.so: $(top_builddir)lib/libm.a $(libc.depend) else $(top_builddir)lib/libm.so: $(libm_OUT)/libm_so.a $(libc.depend) endif $(call link.so,$(libm_FULL_NAME),$(ABI_VERSION)) else $(top_builddir)lib/libm.so: $(libm_OUT)/libm.oS | $(libc.depend) $(call linkm.so,$(libm_FULL_NAME),$(ABI_VERSION)) endif $(libm_OUT)/libm_so.a: $(libm-so-y) $(Q)$(RM) $@ $(do_ar) $(libm_OUT)/libm.oS: $(libm_SRC) $(libm_MSRC_FL) $(libm_MSRC_LD) $(libm_ARCH_SRC) $(Q)$(RM) $@ $(compile-m) $(top_builddir)lib/libm.a: $(libm-a-y) $(Q)$(INSTALL) -d $(dir $@) $(Q)$(RM) $@ $(do_ar) $(libm_MOBJ_FL): $(libm_MSRC_FL) $(compile.m) $(libm_MOBJ_LD): $(libm_MSRC_LD) $(compile.m) $(libm_MOBJ_FL:.o=.os): $(libm_MSRC_FL) $(compile.m) $(libm_MOBJ_LD:.o=.os): $(libm_MSRC_LD) $(compile.m) # spare us from adding a gazillion dummy two-liner files $(libm_MOBJ_FL:.o=.i): $(libm_MSRC_FL) $(compile.mi) $(libm_MOBJ_LD:.o=.i): $(libm_MSRC_LD) $(compile.mi) CLEAN_libm: $(do_rm) $(addprefix $(libm_OUT)/,$(foreach e, o os oS a,$(foreach d, *. */*. */*/*.,$(d)$(e))))