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authorJo-Philipp Wich <jow@openwrt.org>2013-02-20 15:06:10 +0000
committerJo-Philipp Wich <jow@openwrt.org>2013-02-20 15:06:10 +0000
commit9622f68581cea9d607bbd641b89350c2420720d5 (patch)
treec5bce9c0e9c3c31376ed6bec317a21ddb008e427 /toolchain
parent330ae61b1b8e136b268d2a9316e434a6ca842979 (diff)
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buildroot: allow specifying libc personality for external toolchains
SVN-Revision: 35703
Diffstat (limited to 'toolchain')
-rw-r--r--toolchain/Config.in11
-rw-r--r--toolchain/wrapper/Makefile2
2 files changed, 12 insertions, 1 deletions
diff --git a/toolchain/Config.in b/toolchain/Config.in
index 32de4b1..8677b87 100644
--- a/toolchain/Config.in
+++ b/toolchain/Config.in
@@ -50,6 +50,17 @@ menuconfig EXTERNAL_TOOLCHAIN
default "/opt/cross/powerpc-unknown-linux-gnu" if powerpc
default "/opt/cross/x86_64-unknown-linux-gnu" if x86_64
+ config TOOLCHAIN_LIBC
+ string
+ prompt "Toolchain libc" if DEVEL
+ depends EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
+ default "uclibc"
+ help
+ Specify the libc type used by the external toolchain. The given value us passed as -m
+ flag to all gcc and g++ invocations. This is mainly intended for multilib toolchains
+ which support glibc and uclibc at the same time. If no value is specified, no -m flag
+ is passed.
+
config TOOLCHAIN_BIN_PATH
string
prompt "Toolchain program path" if DEVEL
diff --git a/toolchain/wrapper/Makefile b/toolchain/wrapper/Makefile
index 417ed8c..3398e40 100644
--- a/toolchain/wrapper/Makefile
+++ b/toolchain/wrapper/Makefile
@@ -17,7 +17,7 @@ include $(INCLUDE_DIR)/toolchain-build.mk
define toolchain_util
$(strip $(SCRIPT_DIR)/ext-toolchain.sh --toolchain $(CONFIG_TOOLCHAIN_ROOT) \
--cflags $(CONFIG_TARGET_OPTIMIZATION) \
- --cflags "-muclibc $(if $(CONFIG_SOFT_FLOAT),-msoft-float)" \
+ --cflags "$(if $(call qstrip,$(CONFIG_TOOLCHAIN_LIBC)),-m$(call qstrip,$(CONFIG_TOOLCHAIN_LIBC))) $(if $(CONFIG_SOFT_FLOAT),-msoft-float)" \
--cflags "$(patsubst ./%,-I$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_INC_PATH)))" \
--cflags "$(patsubst ./%,-L$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_LIB_PATH)))" \
$(1))