From: Felix Fietkau <nbd@nbd.name>
Date: Thu, 14 Jul 2016 13:41:22 +0000 (+0200)
Subject: target.mk: rework arm architecture level detection
X-Git-Tag: v17.01.0-rc1~2056
X-Git-Url: http://git.openwrt.org/?a=commitdiff_plain;h=11d496d1562084d4cdd5822d5ef8fc8c176233ea;p=openwrt%2Fopenwrt.git

target.mk: rework arm architecture level detection

Use kernel config as input instead of -march CFLAGS.
With this change, -march can be dropped and replaced with more specific
optimization flags for better code generation.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---

diff --git a/include/target.mk b/include/target.mk
index b5153ff69c..0a42411d17 100644
--- a/include/target.mk
+++ b/include/target.mk
@@ -259,7 +259,7 @@ ifeq ($(DUMP),1)
     ifneq ($(CONFIG_RTC_CLASS),)
       FEATURES += rtc
     endif
-    FEATURES += $(foreach v,v4 v5 v6 v7,$(if $(filter -march=arm$(v)%,$(CPU_CFLAGS_$(CPU_TYPE))),arm_$(v)))
+    FEATURES += $(foreach v,6 7,$(if $(CONFIG_CPU_V$(v)),arm_v$(v)))
 
     # remove duplicates
     FEATURES:=$(sort $(FEATURES))
diff --git a/target/Config.in b/target/Config.in
index 6a29d53324..ee928143ff 100644
--- a/target/Config.in
+++ b/target/Config.in
@@ -117,12 +117,6 @@ config armeb
 	select BIG_ENDIAN
 	bool
 
-config arm_v4
-	bool
-
-config arm_v5
-	bool
-
 config arm_v6
 	bool