phone-side
/
osmocom-bb
mirror of https://gerrit.osmocom.org/osmocom-bb
9
0
Fork 0
Code Issues Releases Wiki Activity

Allow top-level Makefile to use arm-none-eabi toolchain 

The gnuarm.com 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:

http://www.codesourcery.com/sgpp/lite/arm/portal/release1592

(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 gnuarm.com 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 <peter@stuge.se>
Acked-by: Sylvain Munaut <tnt@246tNt.com>
This commit is contained in:
Peter Stuge 2011-03-12 14:38:08 +01:00 committed by Sylvain Munaut
parent aa2f2fdfa1
commit b22c05dc6d
1 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/Makefile
View File

@ -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-elf
CROSS_INST_PREFIX ?= /usr/local/stow/osmocom-bb/arm-2010.09
# this is the host tuple of your cross-toolchain
CROSS_HOST ?= $(shell which arm-elf-gcc >/dev/null 2>&1 && echo arm-elf || echo arm-none-eabi)
# this is the prefix of your cross-toolchain programs
CROSS_TOOL_PREFIX=arm-elf-
CROSS_TOOL_PREFIX=$(CROSS_HOST)-
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