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authorFelix Fietkau <nbd@nbd.name>2016-07-14 15:41:22 +0200
committerFelix Fietkau <nbd@nbd.name>2016-07-15 14:14:37 +0200
commit11d496d1562084d4cdd5822d5ef8fc8c176233ea (patch)
treef8ba3683218a3db3d3b9b965c10bfe3f0ce5a8b2
parent8e2764ce9bb6716acb955a0c27d8db291d68650c (diff)
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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>
-rw-r--r--include/target.mk2
-rw-r--r--target/Config.in6
2 files changed, 1 insertions, 7 deletions
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