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Mike Frysinger 6ac043b192 newlib: libm: merge machine/ trampoline up a level 
The machine/{configure,Makefile} files exist only to fan out to the
specific machine/$arch/ subdir.  We already have all that same info
in the libm/ dir itself, so by moving the recursive configure and
make calls into it, we can cut off this logic entirely and save the
overhead.

For arches that don't have a machine subdir, it means they can skip
the logic entirely.
 		2022-01-26 03:11:20 -05:00
..
Makefile.am newlib: migrate from INCLUDES to AM_CPPFLAGS 2022-01-05 20:29:53 -05:00
Makefile.in newlib: libm: merge machine/ trampoline up a level 2022-01-26 03:11:20 -05:00
README 2012-10-24 Jeff Johnston <jjohnstn@redhat.com> 2012-10-24 21:01:39 +00:00
e_acosh.c Remove matherr, and SVID and X/Open math library configurations 2019-01-23 10:46:24 +01:00
e_atanh.c Remove matherr, and SVID and X/Open math library configurations 2019-01-23 10:46:24 +01:00
e_hypot.c Remove matherr, and SVID and X/Open math library configurations 2019-01-23 10:46:24 +01:00
e_j0.c 2000-05-26 Marek Michalkiewicz <marekm@linux.org.pl> 2000-05-26 22:42:39 +00:00
e_j1.c 2000-05-26 Marek Michalkiewicz <marekm@linux.org.pl> 2000-05-26 22:42:39 +00:00
e_remainder.c mathfp: remove TRAD_SYNOPSIS 2017-12-01 03:41:54 -06:00
e_scalb.c import newlib-2000-02-17 snapshot 2000-02-17 19:39:52 +00:00
ef_acosh.c import newlib-2000-02-17 snapshot 2000-02-17 19:39:52 +00:00
ef_atanh.c import newlib-2000-02-17 snapshot 2000-02-17 19:39:52 +00:00
ef_hypot.c import newlib-2000-02-17 snapshot 2000-02-17 19:39:52 +00:00
ef_j0.c 2000-05-26 Marek Michalkiewicz <marekm@linux.org.pl> 2000-05-26 22:42:39 +00:00
ef_j1.c 2000-05-26 Marek Michalkiewicz <marekm@linux.org.pl> 2000-05-26 22:42:39 +00:00
ef_remainder.c import newlib-2000-02-17 snapshot 2000-02-17 19:39:52 +00:00
ef_scalb.c import newlib-2000-02-17 snapshot 2000-02-17 19:39:52 +00:00
er_gamma.c * libm/mathfp/er_gamma.c (gamma): Add new non-reentrant function. 2004-02-11 00:47:52 +00:00
er_lgamma.c Remove matherr, and SVID and X/Open math library configurations 2019-01-23 10:46:24 +01:00
erf_gamma.c * libm/mathfp/er_gamma.c (gamma): Add new non-reentrant function. 2004-02-11 00:47:52 +00:00
erf_lgamma.c * libm/mathfp/er_gamma.c (gamma): Add new non-reentrant function. 2004-02-11 00:47:52 +00:00
mathfp.tex 2006-03-02 Jeff Johnston <jjohnstn@redhat.com> 2006-03-02 16:46:12 +00:00
s_acos.c Remove matherr, and SVID and X/Open math library configurations 2019-01-23 10:46:24 +01:00
s_asin.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_asine.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_asinh.c mathfp: remove TRAD_SYNOPSIS 2017-12-01 03:41:54 -06:00
s_atan.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_atan2.c Remove matherr, and SVID and X/Open math library configurations 2019-01-23 10:46:24 +01:00
s_atangent.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_ceil.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_cos.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_cosh.c Remove matherr, and SVID and X/Open math library configurations 2019-01-23 10:46:24 +01:00
s_erf.c mathfp: remove TRAD_SYNOPSIS 2017-12-01 03:41:54 -06:00
s_exp.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_exp2.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_fabs.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_floor.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_fmod.c Remove matherr, and SVID and X/Open math library configurations 2019-01-23 10:46:24 +01:00
s_frexp.c mathfp: remove TRAD_SYNOPSIS 2017-12-01 03:41:54 -06:00
s_ispos.c import newlib-2000-02-17 snapshot 2000-02-17 19:39:52 +00:00
s_ldexp.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_log.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_log10.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_logarithm.c Remove matherr, and SVID and X/Open math library configurations 2019-01-23 10:46:24 +01:00
s_mathcnst.c 2005-10-31 Darin Johnson <darin@usa.net> 2005-10-31 18:47:20 +00:00
s_numtest.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_pow.c Remove matherr, and SVID and X/Open math library configurations 2019-01-23 10:46:24 +01:00
s_signif.c import newlib-2000-02-17 snapshot 2000-02-17 19:39:52 +00:00
s_sin.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_sincos.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_sine.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_sineh.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_sinf.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_sinh.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_sqrt.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_tan.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_tanh.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
s_tgamma.c * libm/mathfp/er_lgamma.c: Remove __kernel references. 2002-06-27 20:25:57 +00:00
sf_acos.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_asin.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_asine.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_asinh.c import newlib-2000-02-17 snapshot 2000-02-17 19:39:52 +00:00
sf_atan.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_atan2.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_atangent.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_ceil.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_cos.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_cosh.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_erf.c import newlib-2000-02-17 snapshot 2000-02-17 19:39:52 +00:00
sf_exp.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_exp2.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_fabs.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_floor.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_fmod.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_frexp.c 2006-01-10 Jeff Johnston <jjohnstn@redhat.com> 2006-01-10 16:51:58 +00:00
sf_ispos.c import newlib-2000-02-17 snapshot 2000-02-17 19:39:52 +00:00
sf_ldexp.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_log.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_log10.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_logarithm.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_numtest.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_pow.c 2005-09-01 Jeff Johnston <jjohnstn@redhat.com> 2005-09-01 17:53:02 +00:00
sf_signif.c import newlib-2000-02-17 snapshot 2000-02-17 19:39:52 +00:00
sf_sin.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_sincos.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_sine.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_sineh.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_sinh.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_sqrt.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_tan.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_tanh.c ansification: remove _DEFUN 2018-01-17 11:47:26 -06:00
sf_tgamma.c * libm/mathfp/er_lgamma.c: Remove __kernel references. 2002-06-27 20:25:57 +00:00
w_cabs.c import newlib-2000-02-17 snapshot 2000-02-17 19:39:52 +00:00
w_drem.c import newlib-2000-02-17 snapshot 2000-02-17 19:39:52 +00:00
w_jn.c Remove matherr, and SVID and X/Open math library configurations 2019-01-23 10:46:24 +01:00
wf_cabs.c import newlib-2000-02-17 snapshot 2000-02-17 19:39:52 +00:00
wf_drem.c import newlib-2000-02-17 snapshot 2000-02-17 19:39:52 +00:00
wf_jn.c Remove matherr, and SVID and X/Open math library configurations 2019-01-23 10:46:24 +01:00
zmath.h ansification: remove _EXFUN, _EXFUN_NOTHROW 2018-01-17 11:47:29 -06:00

README 

This directory was an experiment to use floating-point operations to implement
the math library when a processor had a floating-point instruction set.  The
experiment was a failure in that some of the algorithms chosen (e.g. recursive
algorithms for sin/cos, etc..) are too simple and do not provide proper accuracy 
nor handle very large or very small inputs adequately.

The code is considered moth-balled.  The stable math library routines can be
found in libm/math and the configuration option to use this has been removed.

If you wish to experiment with the concept, please feel free and report back if
you have major improvements.