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Use libm_alias_double for dbl-64 logb.

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This patch makes dbl-64 logb use libm_alias_double.  Both the dbl-64
and dbl-64/wordsize-64 versions are changed, and the ldbl-opt version
is removed.  Because of multiarch wrappers, the changed
implementations are made not to define aliases at all if __logb 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 (except on alpha
where changes from using the wordsize-64 version are expected).

	* 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
	<libm-alias-double.h>.
	(logb): Define using libm_alias_double, only if [!__logb].
	* sysdeps/ieee754/ldbl-opt/s_logb.c: Remove file.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb-ppc32.c
	(weak_alias): Do not undefine and redefine.
	(strong_alias): Likewise.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_logb-ppc64.c
	(weak_alias): Likewise.
	(strong_alias): Likewise.
This commit is contained in:
Joseph Myers 2017-10-03 23:44:41 +00:00
parent bcc4e4bb31
commit 4699cb8b5f
6 changed files with 21 additions and 22 deletions
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15
ChangeLog
View File

@ -1,3 +1,18 @@
2017-10-03 Joseph Myers <joseph@codesourcery.com>
* 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
<libm-alias-double.h>.
(logb): Define using libm_alias_double, only if [!__logb].
* sysdeps/ieee754/ldbl-opt/s_logb.c: Remove file.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb-ppc32.c
(weak_alias): Do not undefine and redefine.
(strong_alias): Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_logb-ppc64.c
(weak_alias): Likewise.
(strong_alias): Likewise.
2017-10-03 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/unix/sysv/linux/tile/sysdep.h (SYSCALL_ERROR_NAME):

6
sysdeps/ieee754/dbl-64/s_logb.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <libm-alias-double.h>
#include <fix-int-fp-convert-zero.h>
double
@ -46,7 +47,6 @@ __logb (double x)
return 0.0;
return (double) (rix - 1023);
}
weak_alias (__logb, logb)
#ifdef NO_LONG_DOUBLE
strong_alias (__logb, __logbl) weak_alias (__logb, logbl)
#ifndef __logb
libm_alias_double (__logb, logb)
#endif

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

@ -20,6 +20,7 @@
#include <math.h>
#include <math_private.h>
#include <libm-alias-double.h>
double
@ -41,8 +42,6 @@ __logb (double x)
}
return (double) (ex - 1023);
}
weak_alias (__logb, logb)
#ifdef NO_LONG_DOUBLE
strong_alias (__logb, __logbl)
weak_alias (__logb, logbl)
#ifndef __logb
libm_alias_double (__logb, logb)
#endif

5
sysdeps/ieee754/ldbl-opt/s_logb.c
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@ -1,5 +0,0 @@
#include <math_ldbl_opt.h>
#include <sysdeps/ieee754/dbl-64/s_logb.c>
#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
compat_symbol (libm, __logb, logbl, GLIBC_2_0);
#endif

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

@ -18,11 +18,6 @@
#include <math.h>
#undef weak_alias
#define weak_alias(a, b)
#undef strong_alias
#define strong_alias(a, b)
#define __logb __logb_ppc32
#include <sysdeps/ieee754/dbl-64/s_logb.c>

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

@ -18,11 +18,6 @@
#include <math.h>
#undef weak_alias
#define weak_alias(a, b)
#undef strong_alias
#define strong_alias(a, b)
#define __logb __logb_ppc64
#include <sysdeps/ieee754/dbl-64/s_logb.c>