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4 Commits

Author SHA1 Message Date
Tulio Magno Quites Machado Filho
d93f4ff16b m68k: Reorganize log1p and significand implementations 
Commit 5e79e0292b broke m68k after
s_significand.c became available in the build directory.  All m68k
implementations of log1p and significand were including s_significand.c
and stopped working after the inclusion of the the auto-generated file.

This patch reorganizes the implementation of log1p and significand for
m680x0 in order to avoid hitting this problem.

	* sysdeps/m68k/m680x0/fpu/s_log1p.c: Set as the generic file for
	all log1p and significand functions on m680x0.
	* sysdeps/m68k/m680x0/fpu/s_log1pf.c: Include s_log1p.c instead
	of s_significand.c..
	* sysdeps/m68k/m680x0/fpu/s_log1pl.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_significandf.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_significandl.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_significand.c: Move all the code to
	s_log1p.c and include it..

Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
 2018-06-22 21:34:28 -03:00
Joseph Myers
e53df1dee8 Rework m68k libm functions to use declare_mgen_alias. 
Many m68k libm functions use their own system to share code between
different types and functions, involving defining macros before
including code for another function (for example, s_atan.c also acts
as a template that can define other functions).

Thes files serving as templates generate function aliases directly
with e.g. "weak_alias (__CONCATX(__,FUNC), FUNC)" in s_atan.c.  To be
prepared to generate _Float32, _Float64 and _Float32x function
aliases, this needs changing so that the libm_alias_* macros get used
instead.  As the macro to use varies depending on the type, that would
mean additional macros to define in several different places to get
the appropriate alias-generation macro used in each case.

Rather than adding to the m68k-specific mechanisms, this patch
converts the functions in question to use something closer to the
math/ type-generic template mechanism.  After this patch, these
functions have m68k-specific templates such as s_atan_template.c, but
those templates use all the same macros as in the math/ templates,
such as FLOAT, M_DECL_FUNC, M_SUF and declare_mgen_alias.  There is no
automatic generation of the files such as s_atan.c that include the
appropriate math-type-macros-*.h header and the template file (the
existing automatic generation logic is only applicable for the fixed
set of templates listed in math/ - and sysdeps sources always override
files generated that way), so those files are still checked in, but
they are all the obvious two-line files (with one additional
definition in the case of the expm1 implementations), rather than
making e.g. s_atan.c special.

Functions are only converted where they should have aliases for
_FloatN / _FloatNx types.  Those m68k functions that do not generate
public names (those that only generate __ieee754_*, with wrappers
generating the public names, and classification functions that only
exist once per format not once per type so don't get aliases) are
unchanged.  However, log1p (public names generated by wrapper) and
significand (not provided for new types so no new aliases needed)
needed changing because they previously included the atan
implementations.  Now, s_significand.c is the main implementation for
functions with that prototype and using the old implementation
approach, while log1p includes it in place of atan.

Any further cleanups in this area (which preserve the proper set of
functions getting aliases defined by libm_alias_float and
libm_alias_double) are of course welcome, just not needed for the
goals of this patch.

Tested with build-many-glibcs.py that installed stripped shared
libraries are unchanged by the patch.

	* sysdeps/m68k/m680x0/fpu/s_atan_template.c: New file.
	* sysdeps/m68k/m680x0/fpu/s_ceil_template.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_cos_template.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_expm1_template.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_fabs_template.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_floor_template.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_frexp_template.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_lrint_template.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_modf_template.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_nearbyint_template.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_remquo_template.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_rint_template.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_sin_template.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_sincos_template.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_tan_template.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_tanh_template.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_trunc_template.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_atan.c: Reimplement to use
	s_atan_template.c.
	* sysdeps/m68k/m680x0/fpu/s_atanf.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_atanl.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_ceil.c: Reimplement to use
	s_ceil_template.c.
	* sysdeps/m68k/m680x0/fpu/s_ceilf.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_ceill.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_cos.c: Reimplement to use
	s_cos_template.c.
	* sysdeps/m68k/m680x0/fpu/s_cosf.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_cosl.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_expm1.c: Reimplement to use
	s_expm1_template.c.
	* sysdeps/m68k/m680x0/fpu/s_expm1f.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_expm1l.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_fabs.c: Reimplement to use
	s_fabs_template.c.
	* sysdeps/m68k/m680x0/fpu/s_fabsf.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_fabsl.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_floor.c: Reimplement to use
	s_floor_template.c.
	* sysdeps/m68k/m680x0/fpu/s_floorf.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_floorl.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_frexp.c: Reimplement to use
	s_frexp_template.c.
	* sysdeps/m68k/m680x0/fpu/s_frexpf.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_lrint.c: Reimplement to use
	s_lrint_template.c.
	* sysdeps/m68k/m680x0/fpu/s_lrintf.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_lrintl.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_modf.c: Reimplement to use
	s_modf_template.c.
	* sysdeps/m68k/m680x0/fpu/s_modff.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_modfl.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_nearbyint.c: Reimplement to use
	s_nearbyint_template.c.
	* sysdeps/m68k/m680x0/fpu/s_nearbyintf.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_nearbyintl.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_remquo.c: Reimplement to use
	s_remquo_template.c.
	* sysdeps/m68k/m680x0/fpu/s_remquof.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_remquol.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_rint.c: Reimplement to use
	s_rint_template.c.
	* sysdeps/m68k/m680x0/fpu/s_rintf.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_rintl.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_sin.c: Reimplement to use
	s_sin_template.c.
	* sysdeps/m68k/m680x0/fpu/s_sinf.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_sinl.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_sincos.c: Reimplement to use
	s_sincos_template.c.
	* sysdeps/m68k/m680x0/fpu/s_sincosf.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_sincosl.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_tan.c: Reimplement to use
	s_tan_template.c.
	* sysdeps/m68k/m680x0/fpu/s_tanf.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_tanl.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_tanh.c: Reimplement to use
	s_tanh_template.c.
	* sysdeps/m68k/m680x0/fpu/s_tanhf.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_tanhl.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_trunc.c: Reimplement to use
	s_trunc_template.c.
	* sysdeps/m68k/m680x0/fpu/s_truncf.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_truncl.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_significand.c: Reimplement based on
	s_atan.c instead of including s_atan.c.
	* sysdeps/m68k/m680x0/fpu/s_significandf.c: Reimplement based on
	s_atanf.c instead of including s_atanf.c.
	* sysdeps/m68k/m680x0/fpu/s_significandl.c: Reimplement based on
	s_atanl.c instead of including s_atanl.c.
	* sysdeps/m68k/m680x0/fpu/s_log1p.c: Include s_significand.c
	instead of s_atan.c.
	* sysdeps/m68k/m680x0/fpu/s_log1pf.c: Include s_significandf.c
	instead of s_atanf.c.
	* sysdeps/m68k/m680x0/fpu/s_log1pl.c: Include s_significandl.c
	instead of s_atanl.c.
 2017-11-30 22:39:07 +00:00
Stefan Liebler
de8aadd52c Set errno for log1p on pole/domain error. 
According to bug 6792, errno is not set to ERANGE/EDOM
by calling log1p/log1pf/log1pl with x = -1 or x < -1.

This patch adds a wrapper which sets errno in those cases
and returns the value of the existing __log1p function.
The log1p is now an alias to the wrapper function
instead of __log1p.

The files in sysdeps are reflecting these changes.
The ia64 implementation sets errno by itself,
thus the wrapper-file is empty.

The libm-test is adjusted for log1p-tests to check errno.

	[BZ #6792]
	* math/w_log1p.c: New file.
	* math/w_log1pf.c: Likewise.
	* math/w_log1pl.c: Likewise.
	* math/Makefile (libm-calls): Add w_log1p.
	* math/s_log1pl.c (log1pl): Remove weak_alias.
	* sysdeps/i386/fpu/s_log1p.S (log1p): Likewise.
	* sysdeps/i386/fpu/s_log1pf.S (log1pf): Likewise.
	* sysdeps/i386/fpu/s_log1pl.S (log1pl): Likewise.
	* sysdeps/x86_64/fpu/s_log1pl.S (log1pl): Likewise.
	* sysdeps/ieee754/dbl-64/s_log1p.c (log1p): Likewise.
	[NO_LONG_DOUBLE] (log1pl): Likewise.
	* sysdeps/ieee754/flt-32/s_log1pf.c (log1pf): Likewise.
	* sysdeps/ieee754/ldbl-128/s_log1pl.c (log1pl): Likewise.
	* sysdeps/ieee754/ldbl-64-128/s_log1pl.c
	(log1p): Remove long_double_symbol.
	* sysdeps/ieee754/ldbl-128ibm/s_log1pl.c (log1pl): Likewise.
	* sysdeps/ieee754/ldbl-64-128/w_log1pl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/w_log1pl.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_log1p.c: Define empty weak_alias to
	remove weak_alias for corresponding log1p function.
	* sysdeps/m68k/m680x0/fpu/s_log1pf.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_log1pl.c: Likewise.
	* sysdeps/ia64/fpu/w_log1p.c: New file.
	* sysdeps/ia64/fpu/w_log1pf.c: Likewise.
	* sysdeps/ia64/fpu/w_log1pl.c: Likewise.
	* math/libm-test.inc (log1p_test_data):	Add errno expectations.
 2015-04-13 21:19:27 +02:00
Andreas Schwab
73588a7223 Move m68k from ports to libc 2014-02-10 20:22:40 +01:00