From d7598f178d2ca5d638da1b7fe819bd6cb040dc59 Mon Sep 17 00:00:00 2001
From: Abdoulaye Walsimou Gaye <walsimou@walsimou.com>
Date: Thu, 17 Sep 2009 21:24:22 +0200
Subject: Toolchain: Initial work in order to support uClibc

Signed-off-by: Abdoulaye Walsimou Gaye <walsimou@walsimou.com>
---
 kconfig/toolchain.kconfig | 24 +++++++++++++++++++++++-
 mk/arm-arch.mk            | 14 ++++++++++++++
 2 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/kconfig/toolchain.kconfig b/kconfig/toolchain.kconfig
index 45de866..6efa032 100644
--- a/kconfig/toolchain.kconfig
+++ b/kconfig/toolchain.kconfig
@@ -22,8 +22,30 @@
 # \date         July 2009
 ################################################################################
 
-menu "EGLIBC C library"
+menu "C library to use"
+choice
+	prompt "Choose which C library to use"
+	help
+	 Choose here which C library your toolchain will use.
+	config EMBTK_CLIB_EGLIBC
+		bool "eglibc"
+		help
+		 EGLIBC is suitable for source and binary compatibility with
+		 glibc, but care is also taken to satisfy embedded systems
+		 constraints.
+		 see http://www.eglibc.org for more information about eglibc.
+	config EMBTK_CLIB_UCLIBC
+		bool "uClibc"
+		help
+		 uClibc is suitable for high memory constraints and MMU-less
+		 embedded systems. But compatibility with glibc is not guaranted
+		 and even between different uClibc versions.
+		 see http://www.uclibc.org for more information about uclibc.
+endchoice
+
+if EMBTK_CLIB_EGLIBC
 source "kconfig/eglibc.kconfig"
+endif
 endmenu
 
 menu "GCC compiler"
diff --git a/mk/arm-arch.mk b/mk/arm-arch.mk
index 16483db..c7486fd 100644
--- a/mk/arm-arch.mk
+++ b/mk/arm-arch.mk
@@ -26,6 +26,8 @@ LINUX_ARCH := arm
 GNU_TARGET_ARCH := arm
 EMBTK_MCU_FLAG := $(subst ",,$(strip $(CONFIG_EMBTK_ARM_MCU_STRING)))
 
+ifeq ($(CONFIG_EMBTK_CLIB_EGLIBC),y)
+#EGLIBC C library
 ifeq ($(CONFIG_EMBTK_ARCH_ARM_BIG_ENDIAN),y)
 GNU_TARGET := armeb-linux
 STRICT_GNU_TARGET := armeb-unknown-linux-gnueabi
@@ -34,6 +36,18 @@ GNU_TARGET := armel-linux
 STRICT_GNU_TARGET := armel-unknown-linux-gnueabi
 endif
 
+else
+#uClibc C library
+ifeq ($(CONFIG_EMBTK_ARCH_ARM_BIG_ENDIAN),y)
+GNU_TARGET := armeb-linux
+STRICT_GNU_TARGET := armeb-unknown-linux-uclibceabi
+else
+GNU_TARGET := armel-linux
+STRICT_GNU_TARGET := armel-unknown-linux-uclibceabi
+endif
+
+endif
+
 #GCC configure options
 GCC_WITH_CPU := --with-cpu=$(subst ",,$(strip $(CONFIG_EMBTK_ARM_MCU_STRING)))
 
-- 
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