From 97d03426e4ac528d0b30d70bc40db54f903d8194 Mon Sep 17 00:00:00 2001
From: Piotr Esden-Tempski <piotr@esden.net>
Date: Sun, 12 Sep 2010 03:15:23 -0700
Subject: Divided the script into sections. Added more switches.

The script is now divided in sections to make it easier to custumize the
build. Also added some more switches also for convinence.
---
 summon-arm-toolchain | 57 ++++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 42 insertions(+), 15 deletions(-)

diff --git a/summon-arm-toolchain b/summon-arm-toolchain
index 03d5d48..f1ddff0 100755
--- a/summon-arm-toolchain
+++ b/summon-arm-toolchain
@@ -14,6 +14,10 @@
 # Stop if any command fails
 set -e
 
+##############################################################################
+# Settings section
+# You probably want to customize those
+##############################################################################
 TARGET=arm-none-eabi		# Or: TARGET=arm-elf
 PREFIX=${HOME}/arm-none-eabi	# Install location of your final toolchain
 PARALLEL=			# Or: PARALLEL="-j 5" for 4 CPUs
@@ -22,16 +26,29 @@ DARWIN_OPT_PATH=/opt/local	# Path in which MacPorts or Fink is installed
 SUDO=
 # Set to 1 to be quieter while running
 QUIET=0
-
-# For FSF GCC:
-GCCVERSION=4.5.1
-GCC=gcc-${GCCVERSION}
-GCCURL=http://ftp.gnu.org/gnu/gcc/${GCC}/${GCC}.tar.gz
-
-# For the Linaro GCC:
-# GCCVERSION=4.5-2010.08-1
-# GCC=gcc-linaro-${GCCVERSION}
-# GCCURL=http://launchpad.net/gcc-linaro/4.5/${GCCVERSION}/+download/${GCC}.tar.gz
+# Set to 1 to use linaro gcc instead of the FSF gcc
+USE_LINARO=0
+# Set to 1 to build libstm32 provided by ST
+LIBSTM32_EN=0
+# Set to 1 to build libopenstm32 an open source library for stm32
+LIBOPENSTM32_EN=0
+# Make the gcc default to Cortex-M3
+DEFAULT_TO_CORTEX_M3=0
+
+##############################################################################
+# Version and download url settings section
+##############################################################################
+if [ ${USE_LINARO} == 0 ] ; then
+	# For FSF GCC:
+	GCCVERSION=4.5.1
+	GCC=gcc-${GCCVERSION}
+	GCCURL=http://ftp.gnu.org/gnu/gcc/${GCC}/${GCC}.tar.gz
+else
+	# For the Linaro GCC:
+	GCCVERSION=4.5-2010.08-1
+	GCC=gcc-linaro-${GCCVERSION}
+	GCCURL=http://launchpad.net/gcc-linaro/4.5/${GCCVERSION}/+download/${GCC}.tar.gz
+fi
 
 BINUTILS=binutils-2.20
 NEWLIB=newlib-1.18.0
@@ -40,15 +57,20 @@ LIBCMSIS=v1.10-2
 LIBSTM32=v3.0.0-1
 LIBSTM32USB=v3.0.1-1
 LIBOPENSTM32=master
-LIBSTM32_EN=0
-LIBOPENSTM32_EN=0
 
-GCCFLAGS=
+##############################################################################
+# Flags section
+##############################################################################
+
 GDBFLAGS=
 BINUTILFLAGS=
 
-# To default to the Cortex-M3:
-# GCCFLAGS="--with-arch=armv7-m --with-mode=thumb"
+if [ ${DEFAULT_TO_CORTEX_M3} == 0 ] ; then
+	GCCFLAGS=
+else
+	# To default to the Cortex-M3:
+	GCCFLAGS="--with-arch=armv7-m --with-mode=thumb"
+fi
 
 # Pull in the local configuration, if any
 if [ -f local.sh ]; then
@@ -69,6 +91,11 @@ SUMMON_DIR=$(pwd)
 SOURCES=${SUMMON_DIR}/sources
 STAMPS=${SUMMON_DIR}/stamps
 
+##############################################################################
+# Building section
+# You probably don't have to touch anything after this
+##############################################################################
+
 # Fetch a versioned file from a URL
 function fetch {
     if [ ! -e ${STAMPS}/$1.fetch ]; then
-- 
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