WIP CMake Improvements

.editorconfig

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+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+
+[*.md]
+charset = utf-8-bom
+end_of_line = lf
+insert_final_newline = true

.github/workflows/test-build-cmake-dot-config.yml

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+name: wolfboot CMake (.config)
+on:
+  push:
+    branches: [ '*' ]
+  pull_request:
+    branches: [ '*' ]
+jobs:
+  wolfboot_dot_config_test:
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - name: Workaround for sources.list
+        run: |
+            # Replace sources
+
+            set -euxo pipefail
+
+            # Peek (what repos are active now)
+            apt-cache policy
+            grep -RInE '^(deb|Types|URIs)' /etc/apt || true
+
+            # Enable nullglob so *.list/*.sources that don't exist don't break sed
+            shopt -s nullglob
+
+            echo "Replace sources.list (legacy)"
+            sudo sed -i \
+              -e "s|https\?://azure\.archive\.ubuntu\.com/ubuntu/?|http://mirror.arizona.edu/ubuntu/|g" \
+              /etc/apt/sources.list || true
+
+            echo "Replace sources.list.d/*.list (legacy)"
+            for f in /etc/apt/sources.list.d/*.list; do
+              sudo sed -i \
+                -e "s|https\?://azure\.archive\.ubuntu\.com/ubuntu/?|http://mirror.arizona.edu/ubuntu/|g" \
+                "$f"
+            done
+
+            echo "Replace sources.list.d/*.sources (deb822)"
+            for f in /etc/apt/sources.list.d/*.sources; do
+              sudo sed -i \
+                -e "s|https\?://azure\.archive\.ubuntu\.com/ubuntu/?|http://mirror.arizona.edu/ubuntu/|g" \
+                -e "s|https\?://azure\.archive\.ubuntu\.com|http://mirror.arizona.edu|g" \
+                "$f"
+            done
+
+            echo "Fix /etc/apt/apt-mirrors.txt (used by URIs: mirror+file:...)"
+            if grep -qE '^[[:space:]]*https?://azure\.archive\.ubuntu\.com/ubuntu/?' /etc/apt/apt-mirrors.txt; then
+              # Replace azure with our mirror (idempotent)
+              sudo sed -i 's|https\?://azure\.archive\.ubuntu\.com/ubuntu/|http://mirror.arizona.edu/ubuntu/|g' /etc/apt/apt-mirrors.txt
+            fi
+
+            # Peek (verify changes)
+            grep -RIn "azure.archive.ubuntu.com" /etc/apt || true
+            grep -RInE '^(deb|Types|URIs)' /etc/apt || true
+            echo "--- apt-mirrors.txt ---"
+            cat /etc/apt/apt-mirrors.txt || true
+
+
+      - name: Install requirements
+        run: |
+            # Run system updates and install toolchain
+            sudo apt-get update
+            sudo apt-get install -y gcc-arm-none-eabi gcc-powerpc-linux-gnu cmake
+
+      - name: Run dot-config examples
+        run: |
+            # Sample .config cmake test
+
+            set -euo pipefail
+
+            LOG_FILE="run.log"
+            KEYWORD="Config mode: dot"
+            echo "Saving output to $LOG_FILE"
+
+            echo "Fetch stm32h7 example .config"
+            cp   ./config/examples/stm32h7.config ./.config
+            ls   .config
+            cat  .config
+            echo ""
+
+            echo "Clean"
+            rm -rf ./build-stm32h7
+
+            # Here we should see the .config file values read and displayed:
+            cmake -S . -B build-stm32h7 \
+              -DUSE_DOT_CONFIG=ON       \
+              -DWOLFBOOT_TARGET=stm32h7 2>&1 | tee "$LOG_FILE"
+
+            # Config dot-config mode
+            if grep -q -- "$KEYWORD" "$LOG_FILE"; then
+                echo "Keyword found: $KEYWORD"
+            else
+                echo "Keyword not found: $KEYWORD" >&2
+                exit 1
+            fi
+
+            # Sample build
+            cmake --build build-stm32h7 -j

.github/workflows/test-build-cmake-mac.yml

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+name: WolfBoot CMake Build (macOS)
+
+on:
+  push:
+    branches: [ "*" ]
+  pull_request:
+    branches: [ "*" ]
+
+jobs:
+  macos-cmake:
+    name: Build on macOS (CMake + Ninja)
+    runs-on: macos-14
+    timeout-minutes: 20
+
+    strategy:
+      fail-fast: false
+      matrix:
+        target: [stm32l4, stm32h7, stm32c0, stm32g0]
+
+    env:
+      HOMEBREW_NO_AUTO_UPDATE: "1"    # avoid updating taps during install
+      HOMEBREW_NO_ANALYTICS: "1"
+      HOMEBREW_CURL_RETRIES: "6"      # ask curl inside brew to retry
+
+    steps:
+      - name: Checkout (with submodules)
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - name: Cache Homebrew bottles # downloads (so retries don't redownload)
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/Library/Caches/Homebrew
+            /Users/runner/Library/Caches/Homebrew
+          key: homebrew-${{ runner.os }}-mac14-cmake-gcc-newlib
+          restore-keys: |
+            homebrew-${{ runner.os }}-
+
+      - name: Install toolchain and build tools
+        run: |
+          # Install with step throttle to hopefully avoid stuck jobs
+
+          set -euxo pipefail
+
+          throttle_delay=5
+          brew update
+
+          sleep "$throttle_delay"
+          brew install --force-bottle cmake
+
+          sleep "$throttle_delay"
+          brew install --force-bottle ninja
+
+          # Use cask to include headers such as <stdlib.h>
+          sleep "$throttle_delay"
+          brew install --cask gcc-arm-embedded
+
+      - name: Probe ARM GCC (paths + smoke build)
+        run: |
+          set -euxo pipefail
+
+          which arm-none-eabi-gcc
+          arm-none-eabi-gcc --version
+
+          echo "=== GCC search dirs ==="
+          arm-none-eabi-gcc -print-search-dirs
+
+          echo "=== GCC verbose include paths (preprocess only) ==="
+          # This prints the built-in include search order; harmless with empty stdin.
+          arm-none-eabi-gcc -x c -E -v - < /dev/null || true
+
+          echo "=== Compile a freestanding object (no stdlib headers needed) ==="
+          cat > hello.c <<'EOF'
+          int main(void) { return 0; }
+          EOF
+          arm-none-eabi-gcc -mcpu=cortex-m4 -mthumb -ffreestanding -nostdlib -c hello.c -o hello.o
+          ls -l hello.o
+
+      - name: Configure (STM32L4)
+        run: |
+          echo "Disabled, missing params"
+          # rm -rf build
+          # cmake -B build -G Ninja         \
+          #   -DWOLFBOOT_CONFIG_MODE=preset \
+          #   -DWOLFBOOT_TARGET=stm32l4     \
+          #   -DBUILD_TEST_APPS=ON          \
+          #   -DCMAKE_TOOLCHAIN_FILE=cmake/toolchain_arm-none-eabi.cmake
+
+      - name: Cmake Configure & Build Preset (${{ matrix.target }})
+        run: |
+          rm -rf ./build-${{ matrix.target }}
+
+          cmake --preset ${{ matrix.target }}
+          cmake --build --preset ${{ matrix.target }}

.github/workflows/test-build-cmake-script.yml

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+name: wolfboot CMake Script
+on:
+  push:
+    branches: [ '*' ]
+  pull_request:
+    branches: [ '*' ]
+jobs:
+  wolfboot_build_script_test:
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - name: Workaround for sources.list
+        run: |
+            # Replace sources
+
+            set -euxo pipefail
+
+            # Peek (what repos are active now)
+            apt-cache policy
+            grep -RInE '^(deb|Types|URIs)' /etc/apt || true
+
+            # Enable nullglob so *.list/*.sources that don't exist don't break sed
+            shopt -s nullglob
+
+            echo "Replace sources.list (legacy)"
+            sudo sed -i \
+              -e "s|https\?://azure\.archive\.ubuntu\.com/ubuntu/?|http://mirror.arizona.edu/ubuntu/|g" \
+              /etc/apt/sources.list || true
+
+            echo "Replace sources.list.d/*.list (legacy)"
+            for f in /etc/apt/sources.list.d/*.list; do
+              sudo sed -i \
+                -e "s|https\?://azure\.archive\.ubuntu\.com/ubuntu/?|http://mirror.arizona.edu/ubuntu/|g" \
+                "$f"
+            done
+
+            echo "Replace sources.list.d/*.sources (deb822)"
+            for f in /etc/apt/sources.list.d/*.sources; do
+              sudo sed -i \
+                -e "s|https\?://azure\.archive\.ubuntu\.com/ubuntu/?|http://mirror.arizona.edu/ubuntu/|g" \
+                -e "s|https\?://azure\.archive\.ubuntu\.com|http://mirror.arizona.edu|g" \
+                "$f"
+            done
+
+            echo "Fix /etc/apt/apt-mirrors.txt (used by URIs: mirror+file:...)"
+            if grep -qE '^[[:space:]]*https?://azure\.archive\.ubuntu\.com/ubuntu/?' /etc/apt/apt-mirrors.txt; then
+              # Replace azure with our mirror (idempotent)
+              sudo sed -i 's|https\?://azure\.archive\.ubuntu\.com/ubuntu/|http://mirror.arizona.edu/ubuntu/|g' /etc/apt/apt-mirrors.txt
+            fi
+
+            # Peek (verify changes)
+            grep -RIn "azure.archive.ubuntu.com" /etc/apt || true
+            grep -RInE '^(deb|Types|URIs)' /etc/apt || true
+            echo "--- apt-mirrors.txt ---"
+            cat /etc/apt/apt-mirrors.txt || true
+
+
+      - name: Install requirements
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y gcc-arm-none-eabi gcc-powerpc-linux-gnu cmake
+
+      - name: Run wolfboot_build script
+        run: |
+          rm -rf ./build
+
+          ./tools/scripts/wolfboot_build.sh --CLEAN  "stm32l4"
+          ./tools/scripts/wolfboot_build.sh --target "stm32l4"
+
+          ./tools/scripts/wolfboot_build.sh --CLEAN  "stm32g0"
+          ./tools/scripts/wolfboot_build.sh --target "stm32g0"