[Buildroot] [PATCH] uClibc: ARC: enable generic string implementations

[Alexey Brodkin]

With enabled generic optimized string routines we see significant
improvement of some LMbench results.

For example:
===========
libc bcopy unaligned
...
8.39 - 6.76  (UCLIBC_HAS_STRING_GENERIC_OPT=no)
8.39 - 23.86 (UCLIBC_HAS_STRING_GENERIC_OPT=yes)
===========

Since I've only did measurements on ARC and it has been ebabled for ARC
for years I'm sure it doesn't break anything in either during toolchian
building or in run-time.

That's why I'm keeping it as arch-specific change.

Signed-off-by: Alexey Brodkin <abrodkin at synopsys.com>
Cc: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
Cc: Anton Kolesov <anton.kolesov at synopsys.com>
Cc: Peter Korsgaard <peter at korsgaard.com>
---
 package/uclibc/uclibc.mk | 1 +
 1 file changed, 1 insertion(+)

diff --git a/package/uclibc/uclibc.mk b/package/uclibc/uclibc.mk
index 419a4d1..3412efd 100644
--- a/package/uclibc/uclibc.mk
+++ b/package/uclibc/uclibc.mk
@@ -66,6 +66,7 @@ ifeq ($(UCLIBC_TARGET_ARCH),arc)
 UCLIBC_ARC_TYPE = CONFIG_$(call qstrip,$(BR2_UCLIBC_ARC_TYPE))
 define UCLIBC_ARC_TYPE_CONFIG
 	$(call KCONFIG_ENABLE_OPT,$(UCLIBC_ARC_TYPE),$(@D)/.config)
+	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_STRING_GENERIC_OPT,$(@D)/.config)
 endef
 endif # arc
 
-- 
1.9.3