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authorMike Frysinger <vapier@gentoo.org>2011-01-10 14:28:41 (GMT)
committer Peter Korsgaard <jacmet@sunsite.dk>2011-01-15 13:23:36 (GMT)
commite5e5f5d8684a23f774baf57e1f75281e9a6519bd (patch)
treef5c26b95572e2131b05e2b4b2408bc8404144cd7
parentf55d8dff351fa8d08e9acc2d5688380b0864d77e (diff)
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toolchain: add a USE_MMU build option
Some packages need to know whether the MMU is in play, so add a toolchain option to expose the feature to them. [Peter: only show option on archs where it makes sense] Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
-rw-r--r--toolchain/helpers.mk2
-rw-r--r--toolchain/toolchain-common.in7
2 files changed, 9 insertions, 0 deletions
diff --git a/toolchain/helpers.mk b/toolchain/helpers.mk
index eb9d742..db7c7f1 100644
--- a/toolchain/helpers.mk
+++ b/toolchain/helpers.mk
@@ -146,6 +146,7 @@ check_glibc = \
$(call check_glibc_feature,BR2_INET_IPV6,IPv6 support) ;\
$(call check_glibc_feature,BR2_INET_RPC,RPC support) ;\
$(call check_glibc_feature,BR2_ENABLE_LOCALE,Locale support) ;\
+ $(call check_glibc_feature,BR2_USE_MMU,MMU support) ;\
$(call check_glibc_feature,BR2_USE_WCHAR,Wide char support) ;\
$(call check_glibc_feature,BR2_PROGRAM_INVOCATION,Program invocation support)
@@ -187,6 +188,7 @@ check_uclibc = \
exit -1; \
fi; \
UCLIBC_CONFIG_FILE=$${SYSROOT_DIR}/usr/include/bits/uClibc_config.h ; \
+ $(call check_uclibc_feature,__ARCH_USE_MMU__,BR2_USE_MMU,$${UCLIBC_CONFIG_FILE},MMU support) ;\
$(call check_uclibc_feature,__UCLIBC_HAS_LFS__,BR2_LARGEFILE,$${UCLIBC_CONFIG_FILE},Large file support) ;\
$(call check_uclibc_feature,__UCLIBC_HAS_IPV6__,BR2_INET_IPV6,$${UCLIBC_CONFIG_FILE},IPv6 support) ;\
$(call check_uclibc_feature,__UCLIBC_HAS_RPC__,BR2_INET_RPC,$${UCLIBC_CONFIG_FILE},RPC support) ;\
diff --git a/toolchain/toolchain-common.in b/toolchain/toolchain-common.in
index bdc6e76..9106e1f 100644
--- a/toolchain/toolchain-common.in
+++ b/toolchain/toolchain-common.in
@@ -66,6 +66,13 @@ config BR2_NEEDS_GETTEXT_IF_LOCALE
bool
default y if (BR2_NEEDS_GETTEXT && BR2_ENABLE_LOCALE)
+config BR2_USE_MMU
+ bool "Enable MMU support" if BR2_arm || BR2_armeb || BR2_mips || BR2_mipsel || BR2_sh || BR2_extensa
+ default y
+ help
+ If your target has a MMU, you should say Y here. If you
+ are unsure, just say Y.
+
config BR2_PREFER_SOFT_FLOAT
bool
default y if BR2_arm || BR2_armeb || BR2_avr32 || BR2_mips || BR2_mipsel