From e59c94fa0e2871bdfcc363899e3be376c0def770 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Tue, 1 Dec 2015 14:59:38 -0500 Subject: math: add LDBL_CLASSIFY_COMPAT support If a platform does not define "long-double-fcts = yes" in its Makefiles and it does define __NO_LONG_DOUBLE_MATH in its installed headers, it will currently create exported symbols for __finitel, __isinfl, and __isnanl that can't be reached from userspace by correct use of the finite(), isinf(), or isnan() macros in . To avoid this situation, by default for such platforms we now no longer export these symbols, thus causing appropriate link-time errors. However, for platforms that previously exported these symbols, we continue to do so as compat symbols; this is enabled by adding LDBL_CLASSIFY_COMPAT to math_private.h for the platform. For tile, remove the now-unnecessary exports of those functions from libc and libm. --- sysdeps/arm/math_private.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'sysdeps/arm') diff --git a/sysdeps/arm/math_private.h b/sysdeps/arm/math_private.h index c175b15601..d39e9ee24a 100644 --- a/sysdeps/arm/math_private.h +++ b/sysdeps/arm/math_private.h @@ -1,6 +1,10 @@ #ifndef ARM_MATH_PRIVATE_H #define ARM_MATH_PRIVATE_H 1 +/* Enable __finitel, __isinfl, and __isnanl for binary compatibility + when built without long double support. */ +#define LDBL_CLASSIFY_COMPAT 1 + #include "fenv_private.h" #include_next -- cgit v1.2.3