[OpenWrt-Devel] [PATCH] arc: clean-up and move CFLAGS to include/target.mk

[Alexey Brodkin]

Most of currently mentioned CFLAGS in arc770/Makefile
are not really required because:
 [1] "-Os -pipe" are set by default in include/target.mk
 [2] "-fno-caller-saves" gets enabled via menuconfig
     as an extra compiler flag for developers

So the only one that makes sense is "-matomic" and
that one is really essential. Without it many software
packges won't build complainin on unresolved atomic ops.

Signed-off-by: Alexey Brodkin <abrodkin at synopsys.com>
Cc: Felix Fietkau <nbd at openwrt.org>
Cc: Jo-Philipp Wich <jow at openwrt.org>
Cc: Jonas Gorski <jogo at openwrt.org>
---
 include/target.mk            | 1 +
 target/linux/arc770/Makefile | 1 -
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/target.mk b/include/target.mk
index f129298..d8c0212 100644
--- a/include/target.mk
+++ b/include/target.mk
@@ -263,6 +263,7 @@ ifeq ($(DUMP),1)
   endif
   ifeq ($(ARCH),arc)
     CPU_TYPE ?= arc700
+    CPU_CFLAGS += -matomic
     CPU_CFLAGS_arc700 = -marc700
   endif
   DEFAULT_CFLAGS=$(strip $(CPU_CFLAGS) $(CPU_CFLAGS_$(CPU_TYPE)) $(CPU_CFLAGS_$(CPU_SUBTYPE)))
diff --git a/target/linux/arc770/Makefile b/target/linux/arc770/Makefile
index 52c5e00..f917338 100644
--- a/target/linux/arc770/Makefile
+++ b/target/linux/arc770/Makefile
@@ -9,7 +9,6 @@ include $(TOPDIR)/rules.mk
 ARCH:=arc
 BOARD:=arc770
 BOARDNAME:=Synopsys DesignWare ARC 770D
-CFLAGS:=-Os -pipe -fno-caller-saves -matomic
 MAINTAINER:=Alexey Brodkin <abrodkin at synopsys.com>
 SUBTARGETS:=generic
 
-- 
2.5.0
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