scripts/check-binary-sizes

#!/bin/bash

# Copyright 2021 The ChromiumOS Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

# Builds code and prints binary sizes. For now, this only reports sizes of MCU
# binaries as that is by far the most space-constrained.

PROJECT_ROOT=$(realpath "$(dirname "${BASH_SOURCE[0]}")"/..)

source "${PROJECT_ROOT}/environment"

set -e
STAGE0="${PROJECT_ROOT}/rust/mcu/target/thumbv6m-none-eabi/release/stage0.bin"
APPLICATION="${PROJECT_ROOT}/rust/mcu/target/thumbv6m-none-eabi/release/stage1_app.bin"
(
    cd "${PROJECT_ROOT}/rust/mcu"
    cargo build -p stage0 --release
    arm-none-eabi-objcopy \
        -O binary \
        target/thumbv6m-none-eabi/release/stage0 \
        "${STAGE0}"
)
(
    cd "${PROJECT_ROOT}/rust/mcu"
    cargo build -p stage1_app --release
    arm-none-eabi-objcopy \
        -O binary \
        target/thumbv6m-none-eabi/release/stage1_app \
        "${APPLICATION}"
)
echo
STAGE0_SIZE=$(stat --printf='%s' "${STAGE0}")
APPLICATION_SIZE=$(stat --printf='%s' "${APPLICATION}")
echo "Stage0: ${STAGE0_SIZE} bytes"
echo "Application: ${APPLICATION_SIZE} bytes"