Use libm_alias_double for dbl-64 atan, tan.

This patch makes the dbl-64 atan and tan implementations use
libm_alias_double, removing the corresponding ldbl-opt wrappers.

Tested for x86_64, and with build-many-glibcs.py.  Installed stripped
shared libraries are unchanged on non-ldbl-opt platforms.  For
ldbl-opt configurations, the patch has the effect of causing
compat_symbol to define atanl and tanl in terms of __atan and __tan
instead of in terms of atan and tan, which is enough to change the
installed stripped libm.so.

	* sysdeps/ieee754/dbl-64/s_atan.c: Include <libm-alias-double.h>.
	(atan): Define using libm_alias_double.
	* sysdeps/ieee754/dbl-64/s_tan.c: Include <libm-alias-double.h>.
	(tan): Define using libm_alias_double.
	* sysdeps/ieee754/ldbl-opt/s_atan.c: Remove file.
	* sysdeps/ieee754/ldbl-opt/s_tan.c: Likewise.

diff --git a/ChangeLog b/ChangeLog
index ebe1641cb375549f5d21ce20ff5f9bd2e4002503..a43569336dc735a43c3efdcf1e4f5ce5c2d58a94 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2017-10-02  Joseph Myers  <joseph@codesourcery.com>
 
+       * sysdeps/ieee754/dbl-64/s_atan.c: Include <libm-alias-double.h>.
+       (atan): Define using libm_alias_double.
+       * sysdeps/ieee754/dbl-64/s_tan.c: Include <libm-alias-double.h>.
+       (tan): Define using libm_alias_double.
+       * sysdeps/ieee754/ldbl-opt/s_atan.c: Remove file.
+       * sysdeps/ieee754/ldbl-opt/s_tan.c: Likewise.
+
        * sysdeps/ieee754/dbl-64/s_atan.c (atan): Rename to __atan and
        define as weak alias of __atan.  Do not define any aliases if
        [__atan].

diff --git a/sysdeps/ieee754/dbl-64/s_atan.c b/sysdeps/ieee754/dbl-64/s_atan.c
index fdc3bf7e258a6e4c39cd6568295abbc86199325d..ca04bb0991185fd49bc59de2c5b50a006fa7c9e8 100644 (file)
--- a/sysdeps/ieee754/dbl-64/s_atan.c
+++ b/sysdeps/ieee754/dbl-64/s_atan.c
@@ -43,6 +43,7 @@
 #include "atnat.h"
 #include <fenv.h>
 #include <float.h>
+#include <libm-alias-double.h>
 #include <math.h>
 #include <math_private.h>
 #include <stap-probe.h>
@@ -324,9 +325,5 @@ atanMp (double x, const int pr[])
 }
 
 #ifndef __atan
-weak_alias (__atan, atan)
-# ifdef NO_LONG_DOUBLE
-strong_alias (__atan, __atanl)
-weak_alias (__atanl, atanl)
-# endif
+libm_alias_double (__atan, atan)
 #endif

diff --git a/sysdeps/ieee754/dbl-64/s_tan.c b/sysdeps/ieee754/dbl-64/s_tan.c
index feec8262376e837814acf624cdac7acfd9142c61..24f6a9f1e64457af84426b77fea78afb534c8078 100644 (file)
--- a/sysdeps/ieee754/dbl-64/s_tan.c
+++ b/sysdeps/ieee754/dbl-64/s_tan.c
@@ -41,6 +41,7 @@
 #include "MathLib.h"
 #include <math.h>
 #include <math_private.h>
+#include <libm-alias-double.h>
 #include <fenv.h>
 #include <stap-probe.h>
 
@@ -844,9 +845,5 @@ tanMp (double x)
 }
 
 #ifndef __tan
-weak_alias (__tan, tan)
-# ifdef NO_LONG_DOUBLE
-strong_alias (__tan, __tanl)
-weak_alias (__tanl, tanl)
-# endif
+libm_alias_double (__tan, tan)
 #endif

diff --git a/sysdeps/ieee754/ldbl-opt/s_atan.c b/sysdeps/ieee754/ldbl-opt/s_atan.c
deleted file mode 100644 (file)
index 5fbd5e6..0000000
--- a/sysdeps/ieee754/ldbl-opt/s_atan.c
+++ /dev/null
@@ -1,5 +0,0 @@
-#include <math_ldbl_opt.h>
-#include <sysdeps/ieee754/dbl-64/s_atan.c>
-#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
-compat_symbol (libm, atan, atanl, GLIBC_2_0);
-#endif

diff --git a/sysdeps/ieee754/ldbl-opt/s_tan.c b/sysdeps/ieee754/ldbl-opt/s_tan.c
deleted file mode 100644 (file)
index 6b0fec0..0000000
--- a/sysdeps/ieee754/ldbl-opt/s_tan.c
+++ /dev/null
@@ -1,5 +0,0 @@
-#include <math_ldbl_opt.h>
-#include <sysdeps/ieee754/dbl-64/s_tan.c>
-#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
-compat_symbol (libm, tan, tanl, GLIBC_2_0);
-#endif