From: Debian Julia Team <pkg-julia-devel@lists.alioth.debian.org>
Date: Tue, 24 Jan 2017 18:26:37 +0000 (+0000)
Subject: fix-armhf-fp-status-register
X-Git-Tag: archive/raspbian/0.7.0+dfsg-1+rpi1~1^2^2~2
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/%22/%22http:/www.example.com/cgi/%22?a=commitdiff_plain;h=840d46b778c72f252b55a3aa3421b0631d17a1d5;p=openlibm.git

fix-armhf-fp-status-register


Gbp-Pq: Name fix-armhf-fp-status-register.patch
---

diff --git a/include/openlibm_fenv_arm.h b/include/openlibm_fenv_arm.h
index 8ada694..ff1946f 100644
--- a/include/openlibm_fenv_arm.h
+++ b/include/openlibm_fenv_arm.h
@@ -69,11 +69,13 @@ extern const fenv_t	__fe_dfl_env;
 #if defined(__aarch64__)
 #define __rfs(__fpsr)   __asm __volatile("mrs %0,fpsr" : "=r" (*(__fpsr)))
 #define __wfs(__fpsr)   __asm __volatile("msr fpsr,%0" : : "r" (__fpsr))
-#elif defined(ARM_HARD_FLOAT)
-#define	__rfs(__fpsr)	__asm __volatile("rfs %0" : "=r" (*(__fpsr)))
-#define	__wfs(__fpsr)	__asm __volatile("wfs %0" : : "r" (__fpsr))
+/* Test for hardware support for ARM floating point operations, explicitly
+checking for float and double support, see "ARM C Language Extensions", 6.5.1 */
+#elif defined(__ARM_FP) && (__ARM_FP & 0x0C) != 0
+#define __rfs(__fpsr)   __asm __volatile("vmrs %0,fpscr" : "=&r" (*(__fpsr)))
+#define __wfs(__fpsr)   __asm __volatile("vmsr fpscr,%0" : : "r" (__fpsr))
 #else
-#define __rfs(__fpsr)
+#define __rfs(__fpsr)	(*(__fpsr) = 0)
 #define __wfs(__fpsr)
 #endif