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authorJoseph Myers <joseph@codesourcery.com>2017-10-03 23:46:23 +0000
committerJoseph Myers <joseph@codesourcery.com>2017-10-03 23:46:23 +0000
commitd8f619b393a230497d201398e184e3b384a263d3 (patch)
treedd2fc038ebf8c16b15911f2dd8aa03faa504dbb4 /sysdeps/ieee754/dbl-64
parent4699cb8b5f25827eec50f071183a4abba04f16e5 (diff)
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Use libm_alias_double for dbl-64 modf.
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.
Diffstat (limited to 'sysdeps/ieee754/dbl-64')
-rw-r--r--sysdeps/ieee754/dbl-64/s_modf.c7
-rw-r--r--sysdeps/ieee754/dbl-64/wordsize-64/s_modf.c7
2 files changed, 6 insertions, 8 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_modf.c b/sysdeps/ieee754/dbl-64/s_modf.c
index 0cad7b16a7..722511c64a 100644
--- a/sysdeps/ieee754/dbl-64/s_modf.c
+++ b/sysdeps/ieee754/dbl-64/s_modf.c
@@ -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
diff --git a/sysdeps/ieee754/dbl-64/wordsize-64/s_modf.c b/sysdeps/ieee754/dbl-64/wordsize-64/s_modf.c
index c309e56272..8d14e78ef0 100644
--- a/sysdeps/ieee754/dbl-64/wordsize-64/s_modf.c
+++ b/sysdeps/ieee754/dbl-64/wordsize-64/s_modf.c
@@ -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