1 From e6c498f68b61057fb5505e41c3858c2b5d223227 Mon Sep 17 00:00:00 2001
2 From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
3 Date: Sun, 7 Aug 2016 23:20:00 +0200
4 Subject: [PATCH] Makefile.arm: remove -march flags
6 The provided -march flags, especially for ARMv5 and ARMv6 may not
7 necessarily match the needed ones: for ARMv5, it might be armv5,
8 armv5te, armv5t, etc. If the wrong one is used, the incorrect toolchain
9 sysroot can be used in a multilib toolchain.
11 Therefore, let the user building OpenBLAS pass the appropriate -march
14 The other flags, such as -mfpu=vfp or -mfloat-abi=hard are kept, as they
15 are actually required for the build to proceed (OpenBLAS uses VFP
16 instructions, and assume an EABIhf ABI).
18 [Peter: update for v0.2.20]
19 Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
20 Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
22 Makefile.arm | 13 ++++---------
23 1 file changed, 4 insertions(+), 9 deletions(-)
25 diff --git a/Makefile.arm b/Makefile.arm
26 index eedd39b7..b5d80f8e 100644
30 ifeq ($(CORE), $(filter $(CORE),ARMV7 CORTEXA9 CORTEXA15))
31 ifeq ($(OSNAME), Android)
32 -CCOMMON_OPT += -mfpu=neon -march=armv7-a
33 -FCOMMON_OPT += -mfpu=neon -march=armv7-a
34 +CCOMMON_OPT += -mfpu=neon
35 +FCOMMON_OPT += -mfpu=neon
37 CCOMMON_OPT += -mfpu=vfpv3 -march=armv7-a
38 FCOMMON_OPT += -mfpu=vfpv3 -march=armv7-a
39 @@ -9,11 +9,6 @@ endif
43 -CCOMMON_OPT += -mfpu=vfp -march=armv6
44 -FCOMMON_OPT += -mfpu=vfp -march=armv6
47 -ifeq ($(CORE), ARMV5)
48 -CCOMMON_OPT += -march=armv5
49 -FCOMMON_OPT += -march=armv5
50 +CCOMMON_OPT += -mfpu=vfp
51 +FCOMMON_OPT += -mfpu=vfp