From 220622dde5704c95a100c2792a280f18f3deba73 Mon Sep 17 00:00:00 2001
From: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
Date: Tue, 16 Jul 2019 12:17:22 -0300
Subject: Add libm_alias_finite for _finite symbols

This patch adds a new macro, libm_alias_finite, to define all _finite
symbol.  It sets all _finite symbol as compat symbol based on its first
version (obtained from the definition at built generated first-versions.h).

The <fn>f128_finite symbols were introduced in GLIBC 2.26 and so need
special treatment in code that is shared between long double and float128.
It is done by adding a list, similar to internal symbol redifinition,
on sysdeps/ieee754/float128/float128_private.h.

Alpha also needs some tricky changes to ensure we still emit 2 compat
symbols for sqrt(f).

Passes buildmanyglibc.

Co-authored-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
---
 sysdeps/s390/fpu/e_sqrt.c  | 3 ++-
 sysdeps/s390/fpu/e_sqrtf.c | 3 ++-
 sysdeps/s390/fpu/e_sqrtl.c | 3 ++-
 3 files changed, 6 insertions(+), 3 deletions(-)

(limited to 'sysdeps/s390')

diff --git a/sysdeps/s390/fpu/e_sqrt.c b/sysdeps/s390/fpu/e_sqrt.c
index 6113dc1..484c6aa 100644
--- a/sysdeps/s390/fpu/e_sqrt.c
+++ b/sysdeps/s390/fpu/e_sqrt.c
@@ -17,6 +17,7 @@
    <https://www.gnu.org/licenses/>.  */
 
 #include <math_private.h>
+#include <libm-alias-finite.h>
 
 double
 __ieee754_sqrt (double x)
@@ -26,4 +27,4 @@ __ieee754_sqrt (double x)
   __asm__ ( "sqdbr %0,%1" : "=f" (res) : "f" (x) );
   return res;
 }
-strong_alias (__ieee754_sqrt, __sqrt_finite)
+libm_alias_finite (__ieee754_sqrt, __sqrt)
diff --git a/sysdeps/s390/fpu/e_sqrtf.c b/sysdeps/s390/fpu/e_sqrtf.c
index 8209d6a..bce49c9 100644
--- a/sysdeps/s390/fpu/e_sqrtf.c
+++ b/sysdeps/s390/fpu/e_sqrtf.c
@@ -17,6 +17,7 @@
    <https://www.gnu.org/licenses/>.  */
 
 #include <math_private.h>
+#include <libm-alias-finite.h>
 
 float
 __ieee754_sqrtf (float x)
@@ -26,4 +27,4 @@ __ieee754_sqrtf (float x)
   __asm__ ( "sqebr %0,%1" : "=f" (res) : "f" (x) );
   return res;
 }
-strong_alias (__ieee754_sqrtf, __sqrtf_finite)
+libm_alias_finite (__ieee754_sqrtf, __sqrtf)
diff --git a/sysdeps/s390/fpu/e_sqrtl.c b/sysdeps/s390/fpu/e_sqrtl.c
index 28ee9a4..ecf2090 100644
--- a/sysdeps/s390/fpu/e_sqrtl.c
+++ b/sysdeps/s390/fpu/e_sqrtl.c
@@ -18,6 +18,7 @@
    <https://www.gnu.org/licenses/>.  */
 
 #include <math_private.h>
+#include <libm-alias-finite.h>
 
 long double
 __ieee754_sqrtl (long double x)
@@ -27,4 +28,4 @@ __ieee754_sqrtl (long double x)
   __asm__ ( "sqxbr %0,%1" : "=f" (res) : "f" (x) );
   return res;
 }
-strong_alias (__ieee754_sqrtl, __sqrtl_finite)
+libm_alias_finite (__ieee754_sqrtl, __sqrtl)
-- 
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