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authorWilco Dijkstra <Wilco.Dijkstra@arm.com>2019-07-16 12:17:22 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2020-01-03 10:02:04 -0300
commit220622dde5704c95a100c2792a280f18f3deba73 (patch)
treefbf0df37c2671a9bc21a200bd2f587fc5e4cbe2b /sysdeps/ieee754/dbl-64/e_sqrt.c
parentcf4dfd461725b6dbe6f27fbd16913f2c6c5cf7c5 (diff)
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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>
Diffstat (limited to 'sysdeps/ieee754/dbl-64/e_sqrt.c')
-rw-r--r--sysdeps/ieee754/dbl-64/e_sqrt.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/sysdeps/ieee754/dbl-64/e_sqrt.c b/sysdeps/ieee754/dbl-64/e_sqrt.c
index d8a91fba18..d42a1a4eb6 100644
--- a/sysdeps/ieee754/dbl-64/e_sqrt.c
+++ b/sysdeps/ieee754/dbl-64/e_sqrt.c
@@ -40,6 +40,7 @@
 #include <math-barriers.h>
 #include <math_private.h>
 #include <fenv_private.h>
+#include <libm-alias-finite.h>
 
 /*********************************************************************/
 /* An ultimate sqrt routine. Given an IEEE double machine number x   */
@@ -138,4 +139,6 @@ __ieee754_sqrt (double x)
       return 0x1p-256 * __ieee754_sqrt (x * 0x1p512);
     }
 }
-strong_alias (__ieee754_sqrt, __sqrt_finite)
+#ifndef __ieee754_sqrt
+libm_alias_finite (__ieee754_sqrt, __sqrt)
+#endif