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Use libm_alias_double for dbl-64 modf.

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This patch makes dbl-64 modf use libm_alias_double.  Both the dbl-64
and dbl-64/wordsize-64 versions are changed, and the ldbl-opt version
is changed to define the libc compat symbol only.  Because of
multiarch wrappers, the changed implementations are made not to define
aliases at all if __modf is defined as a macro, as with other
functions, so avoiding duplicate compat symbols while allowing those
wrappers to be simplified.

Tested for x86_64, and verified with build-many-glibcs.py that
installed stripped shared libraries are unchanged by the patch.

	* sysdeps/ieee754/dbl-64/s_modf.c: Include <libm-alias-double.h>.
	(modf): Define using libm_alias_double, only if [!__modf].
	* sysdeps/ieee754/dbl-64/wordsize-64/s_modf.c: Include
	<libm-alias-double.h>.
	(modf): Define using libm_alias_double, only if [!__modf].
	* sysdeps/ieee754/ldbl-opt/s_modf.c (modfl): Only define libc
	compat symbol here.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_modf-ppc32.c
	(weak_alias): Do not undefine and redefine.
	(strong_alias): Likewise.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_modf-ppc64.c
	(weak_alias): Likewise.
	(strong_alias): Likewise.
This commit is contained in:
Joseph Myers 2017-10-03 23:46:23 +00:00
parent 4699cb8b5f
commit d8f619b393
6 changed files with 21 additions and 23 deletions
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14
ChangeLog
View File

@ -1,5 +1,19 @@
2017-10-03 Joseph Myers <joseph@codesourcery.com>
* sysdeps/ieee754/dbl-64/s_modf.c: Include <libm-alias-double.h>.
(modf): Define using libm_alias_double, only if [!__modf].
* sysdeps/ieee754/dbl-64/wordsize-64/s_modf.c: Include
<libm-alias-double.h>.
(modf): Define using libm_alias_double, only if [!__modf].
* sysdeps/ieee754/ldbl-opt/s_modf.c (modfl): Only define libc
compat symbol here.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_modf-ppc32.c
(weak_alias): Do not undefine and redefine.
(strong_alias): Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_modf-ppc64.c
(weak_alias): Likewise.
(strong_alias): Likewise.
* sysdeps/ieee754/dbl-64/s_logb.c: Include <libm-alias-double.h>.
(logb): Define using libm_alias_double, only if [!__logb].
* sysdeps/ieee754/dbl-64/wordsize-64/s_logb.c: Include

7
sysdeps/ieee754/dbl-64/s_modf.c
View File

@ -21,6 +21,7 @@
#include <math.h>
#include <math_private.h>
#include <libm-alias-double.h>
static const double one = 1.0;
@ -79,8 +80,6 @@ __modf (double x, double *iptr)
}
}
}
weak_alias (__modf, modf)
#ifdef NO_LONG_DOUBLE
strong_alias (__modf, __modfl)
weak_alias (__modf, modfl)
#ifndef __modf
libm_alias_double (__modf, modf)
#endif

7
sysdeps/ieee754/dbl-64/wordsize-64/s_modf.c
View File

@ -22,6 +22,7 @@
#include <math.h>
#include <math_private.h>
#include <libm-alias-double.h>
#include <stdint.h>
static const double one = 1.0;
@ -59,8 +60,6 @@ __modf(double x, double *iptr)
return x;
}
}
weak_alias (__modf, modf)
#ifdef NO_LONG_DOUBLE
strong_alias (__modf, __modfl)
weak_alias (__modf, modfl)
#ifndef __modf
libm_alias_double (__modf, modf)
#endif

6
sysdeps/ieee754/ldbl-opt/s_modf.c
View File

@ -1,9 +1,5 @@
#include <math_ldbl_opt.h>
#include <sysdeps/ieee754/dbl-64/s_modf.c>
#if IS_IN (libm)
# if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
compat_symbol (libm, __modf, modfl, GLIBC_2_0);
# endif
#elif LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
#if LONG_DOUBLE_COMPAT (libc, GLIBC_2_0)
compat_symbol (libc, __modf, modfl, GLIBC_2_0);
#endif

5
sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_modf-ppc32.c
View File

@ -19,11 +19,6 @@
#include <math.h>
#include <math_ldbl_opt.h>
#undef weak_alias
#define weak_alias(a,b)
#undef strong_alias
#define strong_alias(a,b)
#define __modf __modf_ppc32
#include <sysdeps/ieee754/dbl-64/s_modf.c>

5
sysdeps/powerpc/powerpc64/fpu/multiarch/s_modf-ppc64.c
View File

@ -19,11 +19,6 @@
#include <math.h>
#include <math_ldbl_opt.h>
#undef weak_alias
#define weak_alias(a,b)
#undef strong_alias
#define strong_alias(a,b)
#define __modf __modf_ppc64
#include <sysdeps/ieee754/dbl-64/s_modf.c>