Update LLVM to 22 and Mold to 2.41.0 (#12)

Reviewed-on: #12
Co-authored-by: Romain BOULLARD <romain.boullard@protonmail.com>
Co-committed-by: Romain BOULLARD <romain.boullard@protonmail.com>

Linux/BaseBuilder/Dockerfile

@@ -5,12 +5,19 @@ ENV TZ=Europe/Paris \
     DEBIAN_FRONTEND=noninteractive \
     PATH="/root/.local/bin:$PATH"
 
+# Use build cache for ccache
+RUN --mount=type=cache,target=/ccache
+
+# Dummy sudo (no security weakening)
 RUN echo '#!/bin/bash\n$@' > /usr/bin/sudo \
     && chmod +x /usr/bin/sudo
 
+# Install base dependencies in one layer
 RUN apt-get update && apt-get install -y \
         unzip \
         curl \
         wget \
-        python3 \
-        pipx
+        lsb-release \
+        software-properties-common \
+        gnupg \
+        python3

Linux/CPPBuilder/Dockerfile

@@ -1,15 +1,22 @@
+# Build arguments
 ARG BASE_BUILDER
 
+# Base image
 FROM $BASE_BUILDER
 
+# Install system dependencies
 RUN apt-get update && apt-get install -y \
         build-essential \
+        cppcheck \
         ccache \
+        cmake \
+        ninja-build \
         git \
-        lsb-release \
         pkg-config \
+        wget \
+        lsb-release \
         software-properties-common \
-        xvfb
+        pipx
 
 ENV PATH="/root/.local/bin:${PATH}"
 
@@ -22,7 +29,6 @@ RUN wget https://apt.llvm.org/llvm.sh -O /tmp/llvm.sh \
        done \
     && rm -f /tmp/llvm.sh*
 
-# Install Infer
 RUN VERSION=1.2.0; \
     curl -sSL "https://github.com/facebook/infer/releases/download/v$VERSION/infer-linux-x86_64-v$VERSION.tar.xz" \
     | tar -C /opt -xJ && \
@@ -32,6 +38,16 @@ RUN VERSION=1.2.0; \
 RUN pipx install conan \
     && pipx install gcovr
 
+# Build and install mold
+RUN git clone --branch v2.41.0 https://github.com/rui314/mold.git /tmp/mold \
+    && cd /tmp/mold \
+    && cmake . -DCMAKE_BUILD_TYPE=Release \
+              -DCMAKE_CXX_COMPILER=clang++ \
+              -B build \
+    && cmake --build build -j$(nproc) \
+    && cmake --install build \
+    && rm -rf /tmp/mold
+
 # Configure Conan with custom profiles and remote
 RUN conan config install https://git.romainboullard.com/BigfootDev/ConanProfiles.git --args="--branch main" \
     && conan remote add bigfootpackages https://conan.romainboullard.com/artifactory/api/conan/BigfootPackages \