Fix C API example, run it in CI

.github/workflows/ci.yml

@@ -59,13 +59,19 @@ jobs:
  sudo apt-get install -qq qemu-system-arm >/dev/null
  qemu-system-arm --version
 
+ - uses: actions-rs/toolchain@v1
+ name: Install Rust stable/thumbv7em-none-eabihf
+ with:
+ profile: minimal
+ toolchain: stable
+ target: thumbv7em-none-eabihf
+
  - uses: actions-rs/toolchain@v1
  name: Install Rust stable/thumbv8m.main-none-eabi
  with:
  profile: minimal
  toolchain: stable
  target: thumbv8m.main-none-eabi
- override: true
 
  - name: Run all of the tests, including QEMU tests
  run: make test

Makefile

@@ -7,6 +7,8 @@ test:
  cargo test
  # Test on QEMU
  make -C qemu-tests test
+ # Test C API
+ make -C c-api test
 
 fmt:
  cargo fmt --all

c-api/.gitignore

@@ -1 +1,3 @@
+libsalty.a
+libsalty-asm.a
 libsalty-debug.a

c-api/Makefile

@@ -1,24 +1,26 @@
-TARGET = thumbv7em-none-eabi
+TARGET = thumbv7em-none-eabihf
 build:
  cargo build --release --target $(TARGET)
- cp target/$(TARGET)/release/build/salty-*/out/libsalty-asm.a libsalty-asm.a
- cp target/$(TARGET)/release/libsalty_c_api.a libsalty.a
+ cp ../target/$(TARGET)/release/build/salty-*/out/libsalty-asm.a libsalty-asm.a
+ cp ../target/$(TARGET)/release/libsalty_c_api.a libsalty.a
  cargo build --target $(TARGET)
- cp target/$(TARGET)/debug/libsalty_c_api.a libsalty-debug.a
+ cp ../target/$(TARGET)/debug/libsalty_c_api.a libsalty-debug.a
 
 deep-clean: clean
 
 clean:
  cargo clean
  make -C example clean
 
+test: run-example
+
 c-bindings:
  cbindgen --config cbindgen.toml --lang c --output salty.h
 
 libopencm3/lib/libopencm3_stm32f4.a:
  $(MAKE) -C libopencm3
 
-example/example.elf: libopencm3/lib/libopencm3_stm32f4.a
+example/example.elf: build libopencm3/lib/libopencm3_stm32f4.a
  $(MAKE) -C example
 
 build-example: example/example.elf