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Message-Id: <20201120104503.65390-1-jinliang.li@linux.alibaba.com>
Date: Fri, 20 Nov 2020 18:45:03 +0800
From: Jinliang Li <jinliang.li@...ux.alibaba.com>
To: musl@...ts.openwall.com
Cc: jinliang.li@...ux.alibaba.com
Subject: [PATCH] Fix build error for vabs.f64 and vsqrt.f64

To fix the build error "Error: selected fpu does not support instruction vabs.f64 or vsqrt.f64",
when single precision fpu, e.g. -mfpu=fpv5-sp-d16 is selected.

Check if double precision fpu is supported for vabs.f64 and vsqrt.f64.
---
 src/math/arm/fabs.c | 2 +-
 src/math/arm/sqrt.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/math/arm/fabs.c b/src/math/arm/fabs.c
index f890520a..6e1d367d 100644
--- a/src/math/arm/fabs.c
+++ b/src/math/arm/fabs.c
@@ -1,6 +1,6 @@
 #include <math.h>
 
-#if __ARM_PCS_VFP
+#if __ARM_PCS_VFP && __ARM_FP&8
 
 double fabs(double x)
 {
diff --git a/src/math/arm/sqrt.c b/src/math/arm/sqrt.c
index 874af960..567e2e91 100644
--- a/src/math/arm/sqrt.c
+++ b/src/math/arm/sqrt.c
@@ -1,6 +1,6 @@
 #include <math.h>
 
-#if __ARM_PCS_VFP || (__VFP_FP__ && !__SOFTFP__)
+#if (__ARM_PCS_VFP || (__VFP_FP__ && !__SOFTFP__)) && (__ARM_FP&8)
 
 double sqrt(double x)
 {
-- 
2.28.0

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