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From e6c498f68b61057fb5505e41c3858c2b5d223227 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Sun, 7 Aug 2016 23:20:00 +0200
Subject: [PATCH] Makefile.arm: remove -march flags
The provided -march flags, especially for ARMv5 and ARMv6 may not
necessarily match the needed ones: for ARMv5, it might be armv5,
armv5te, armv5t, etc. If the wrong one is used, the incorrect toolchain
sysroot can be used in a multilib toolchain.
Therefore, let the user building OpenBLAS pass the appropriate -march
flag.
The other flags, such as -mfpu=vfp or -mfloat-abi=hard are kept, as they
are actually required for the build to proceed (OpenBLAS uses VFP
instructions, and assume an EABIhf ABI).
[Peter: update for v0.2.20]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
---
Makefile.arm | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/Makefile.arm b/Makefile.arm
index eedd39b7..b5d80f8e 100644
--- a/Makefile.arm
+++ b/Makefile.arm
@@ -1,7 +1,7 @@
ifeq ($(CORE), $(filter $(CORE),ARMV7 CORTEXA9 CORTEXA15))
ifeq ($(OSNAME), Android)
-CCOMMON_OPT += -mfpu=neon -march=armv7-a
-FCOMMON_OPT += -mfpu=neon -march=armv7-a
+CCOMMON_OPT += -mfpu=neon
+FCOMMON_OPT += -mfpu=neon
else
CCOMMON_OPT += -mfpu=vfpv3 -march=armv7-a
FCOMMON_OPT += -mfpu=vfpv3 -march=armv7-a
@@ -9,11 +9,6 @@ endif
endif
ifeq ($(CORE), ARMV6)
-CCOMMON_OPT += -mfpu=vfp -march=armv6
-FCOMMON_OPT += -mfpu=vfp -march=armv6
-endif
-
-ifeq ($(CORE), ARMV5)
-CCOMMON_OPT += -march=armv5
-FCOMMON_OPT += -march=armv5
+CCOMMON_OPT += -mfpu=vfp
+FCOMMON_OPT += -mfpu=vfp
endif
--
2.11.0
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