Add Rust to travis and to the toolchain container.

Not sure if this is the way to do it...

Make salty build.

.travis.yml

@@ -12,10 +12,21 @@ addons:
 services:
   - docker
 before_install:
-    - sudo add-apt-repository -y ppa:team-gcc-arm-embedded/ppa
-    - sudo apt-get update -q
-    - sudo apt-get install -y gcc-arm-embedded python3-venv
+  - sudo add-apt-repository -y ppa:team-gcc-arm-embedded/ppa
+  - sudo apt-get update -q
+  - sudo apt-get install -y gcc-arm-embedded python3-venv
+  - >
+    set -eu;
+    url="https://raw.githubusercontent.com/rust-lang/rustup/1.22.1/rustup-init.sh";
+    wget -O rustup-init.sh "$url";
+    echo "b273275cf4d83cb6b991c1090baeca54  rustup-init.sh" | md5sum -c -;
+    echo "8928261388c8fae83bfd79b08d9030dfe21d17a8b59e9dcabda779213f6a3d14  rustup-init.sh" | sha256sum -c -;
+    bash ./rustup-init.sh --profile=minimal -y -t thumbv7em-none-eabihf;
+    rm rustup-init.sh;
+    set +eu
+
 script:
   - export CC=gcc-8
+  - source ${HOME}/.cargo/env
   - pyenv shell 3.6.7
   - make travis

Dockerfile

@@ -9,6 +9,8 @@ RUN apt-get update  \
     wget \
     bzip2 \
     git \
+    gcc \
+    libc6-dev \
   && rm -rf /var/lib/apt/lists/*
 
 # Install ARM compiler
@@ -35,4 +37,16 @@ RUN set -eux; \
   pip install -U pip
 
 # solo-python (Python3.7 script for merging etc.)
-RUN pip install -U solo-python
+RUN pip install -U solo-python
+
+# Rust for salty
+ENV RUSTUP_HOME=/rust/rustup
+ENV CARGO_HOME=/rust/cargo
+RUN set -eux; \
+    url="https://raw.githubusercontent.com/rust-lang/rustup/1.22.1/rustup-init.sh"; \
+    wget -O rustup-init.sh "$url"; \
+    echo "b273275cf4d83cb6b991c1090baeca54  rustup-init.sh" | md5sum -c -; \
+    echo "8928261388c8fae83bfd79b08d9030dfe21d17a8b59e9dcabda779213f6a3d14  rustup-init.sh" | sha256sum -c -; \
+    bash ./rustup-init.sh --profile=minimal -y -t thumbv7em-none-eabihf; \
+    rm rustup-init.sh; \
+    chmod -R go+rwX /rust

Makefile

@@ -41,9 +41,12 @@ all: main
 tinycbor/Makefile crypto/tiny-AES-c/aes.c:
 	git submodule update --init
 
-.PHONY: cbor
+.PHONY: cbor cborclean
 cbor: $(LIBCBOR)
 
+cborclean:
+	cd tinycbor && $(MAKE) clean
+
 $(LIBCBOR):
 	cd tinycbor/ && $(MAKE)  LDFLAGS='' -j8
 
@@ -54,6 +57,7 @@ version:
 	@git describe
 
 test: venv
+	$(MAKE) cborclean
 	$(MAKE) clean
 	$(MAKE) -C . main
 	$(MAKE) clean

targets/stm32l432/build/application.mk

@@ -86,3 +86,6 @@ cbor:
 LDFLAGS="$(LDFLAGS_LIB)" \
 CFLAGS="$(CFLAGS) -Os  -DCBOR_PARSER_MAX_RECURSIONS=3"
 
+salty:
+	cd ../../crypto/salty/c-api && cargo clean
+	cd ../../crypto/salty/c-api && $(MAKE)