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build: fix aarch64 default cpu selection 

Not sure since when the issue emerged, but according to the current doc of gcc
and as, armv8-a is intended as argument of -march

The change will affect at the moment arm64 and layerscape/64b

Below is the relevant error messages when building toolchain

    Assembler messages:
    Error: unknown cpu `armv8-a'
    Error: unrecognized option -mcpu=armv8-a
    /home/yousong/git-repo/lede-project/lede/build_dir/toolchain-aarch64_armv8-a_gcc-5.4.0_musl/gcc-5.4.0/libgcc/libgcc2.c:1:0: error: unknown value 'armv8-a' for -mcpu

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
This commit is contained in:
Yousong Zhou 2017-04-19 17:34:18 +08:00
parent e80a041348
commit b889d1e3cf
1 changed files with 2 additions and 2 deletions
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4
include/target.mk
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@ -208,8 +208,8 @@ ifeq ($(DUMP),1)
CPU_CFLAGS_ultrasparc = -mcpu=ultrasparc
endif
ifeq ($(ARCH),aarch64)
CPU_TYPE ?= armv8-a
CPU_CFLAGS_armv8-a = -mcpu=armv8-a
CPU_TYPE ?= generic
CPU_CFLAGS_generic = -mcpu=generic
CPU_CFLAGS_cortex-a53 = -mcpu=cortex-a53
endif
ifeq ($(ARCH),arc)