newlib-cp2

A newlib port for the Classpad II (fx-CP400) to be used alongside the hollyhock SDK.

Prerequisites

• An SH4 cross-compiler (preferably gcc)
  • See: https://github.com/SnailMath/hollyhock-2/blob/master/doc/user/patching.md

Building

Environment variables

First, set an environment variable $PREFIX that holds the path to the directory where newlib should be installed to. I would advise to install it next to your hollyhock SDK.

Next, set an environment variable $TARGET to the value sh4-elf.

Example:

export PREFIX="$SDK_DIR/newlib"
export TARGET="sh4-elf"

Preparing the source tree

Clone this repository using the following command:

git clone https://github.com/diddyholz/newlib-cp2

Change directory into the cloned repository and create a directory named build. Cd into this directory.

cd newlib-cp
mkdir build
cd build

Building and installing

To finally build newlib, first configure the build directory as follows:

../configure --target=$TARGET --prefix=$PREFIX

Now run make to build and install newlib into your prefix directory.

make all
make install

Utilizing newlib in your hollyhock project

To utilize newlib with hollyhock, a template linker file and Makefile are supplied in this repository.