diff options
authorPeter Stuge <>2011-03-12 14:38:08 +0100
committerSylvain Munaut <>2011-03-12 14:38:08 +0100
commitb22c05dc6d376a6e2aa8ef9624ff1daa115fd64b (patch)
parentaa2f2fdfa1a7839b03fbb555e3d7ecfd4ac026e4 (diff)
Allow top-level Makefile to use arm-none-eabi toolchain
The toolchain works fine but is very old. And although it is based on newlib, the tuple that we used to configure for was arm-elf-linux, which is bogus since we aren't building for Linux. This patch optimizes for the CodeSourcery G++ Lite 2010.09 ARM EABI toolchain instead, and for libosmocore installation it assumes that the new toolchain was unpacked next to the old one. Download it here: (The Linux Installer seems not to work reliably so I recommend the TAR.) Since CC is detected by configure when the host tuple points to a sane toolchain we shouldn't hard-code the compiler. The patch autodetects arm-elf-gcc installed in PATH, and uses arm-elf as prefix if it is found. Otherwise, it defaults to arm-none-eabi. make CROSS_HOST=arm-xyzzy can be used to override on the command line. Author: Peter Stuge <> Acked-by: Sylvain Munaut <>
1 files changed, 7 insertions, 4 deletions
diff --git a/src/Makefile b/src/Makefile
index b3594c10..402f28ab 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,10 +1,13 @@
# this is not really used as we don't do 'make install'. You can still specify
# it in case you _want_ to manually 'make install' the target libosmocore.
+CROSS_INST_PREFIX ?= /usr/local/stow/osmocom-bb/arm-2010.09
+# this is the host tuple of your cross-toolchain
+CROSS_HOST ?= $(shell which arm-elf-gcc >/dev/null 2>&1 && echo arm-elf || echo arm-none-eabi)
# this is the prefix of your cross-toolchain programs
TOPDIR=$(shell pwd)
OSMOCORE_CONFIGURE_ENV= LIBOSMOCORE_LIBS=$(TOPDIR)/shared/libosmocore/build-host/src/.libs/libosmocore.a \
@@ -37,9 +40,9 @@ shared/libosmocore/build-target:
shared/libosmocore/build-target/Makefile: shared/libosmocore/configure shared/libosmocore/build-target
cd shared/libosmocore/build-target && ../configure \
- --host=arm-elf-linux --disable-vty --enable-panic-infloop \
+ --host=$(CROSS_HOST) --disable-vty --enable-panic-infloop \
--disable-shared --disable-talloc --disable-tests \
- CC="$(CROSS_TOOL_PREFIX)gcc" CFLAGS="-Os -ffunction-sections -I$(TOPDIR)/target/firmware/include -nostartfiles -nodefaultlibs"
+ CFLAGS="-Os -ffunction-sections -I$(TOPDIR)/target/firmware/include -nostartfiles -nodefaultlibs"
shared/libosmocore/build-target/src/.libs/libosmocore.a: shared/libosmocore/build-target/Makefile
cd shared/libosmocore/build-target && make