Rebuilding libkqueue from source with debug symbols required for profiling

Author: marc-casavant

scripts/docker/build/ubuntu24/Dockerfile.prof

@@ -61,13 +61,37 @@ RUN apt-get update && \
     apt-get clean && \
     rm -r /var/lib/apt/lists/*
 
+#
+#  Rebuild libkqueue from source with full debug info so callgrind can resolve
+#  its internal symbols (kevent, kqueue_close, etc.) instead of showing ???.
+#  The pre-built package from the NetworkRADIUS extras repo ships without debug
+#  symbols, causing all libkqueue call sites to appear as unresolved addresses.
+#
+RUN apt-get update && \
+    apt-get install -y $APT_OPTS --no-install-recommends cmake git && \
+    apt-get clean && \
+    rm -r /var/lib/apt/lists/* && \
+    git clone --depth 1 https://github.com/mheily/libkqueue.git /tmp/libkqueue && \
+    cd /tmp/libkqueue && \
+    cmake -G "Unix Makefiles" \
+        -DCMAKE_INSTALL_PREFIX=/usr \
+        -DCMAKE_INSTALL_LIBDIR=lib \
+        -DCMAKE_C_FLAGS="-g3 -O0 -fno-omit-frame-pointer" \
+        -DCMAKE_BUILD_TYPE=Debug \
+        . && \
+    make && \
+    cpack -G DEB && \
+    dpkg -i *.deb && \
+    cd / && rm -rf /tmp/libkqueue
+
 #
 #  Install FlameGraph scripts
 #
 RUN git clone --depth 1 https://github.com/brendangregg/FlameGraph /opt/flamegraph \
     && chmod +x /opt/flamegraph/*.pl /opt/flamegraph/*.sh
 
-ENV PATH="/opt/flamegraph:${PATH}"
+ENV PATH="/opt/flamegraph:${PATH}" \
+    DEBUGINFOD_URLS="https://debuginfod.ubuntu.com"
 
 #
 #  Install Inferno for callgrind → folded conversion

scripts/docker/m4/profiling.deb.m4

@@ -56,13 +56,37 @@ RUN apt-get update && \
     apt-get clean && \
     rm -r /var/lib/apt/lists/*
 
+#
+#  Rebuild libkqueue from source with full debug info so callgrind can resolve
+#  its internal symbols (kevent, kqueue_close, etc.) instead of showing ???.
+#  The pre-built package from the NetworkRADIUS extras repo ships without debug
+#  symbols, causing all libkqueue call sites to appear as unresolved addresses.
+#
+RUN apt-get update && \
+    apt-get install -y $APT_OPTS --no-install-recommends cmake git && \
+    apt-get clean && \
+    rm -r /var/lib/apt/lists/* && \
+    git clone --depth 1 https://github.com/mheily/libkqueue.git /tmp/libkqueue && \
+    cd /tmp/libkqueue && \
+    cmake -G "Unix Makefiles" \
+        -DCMAKE_INSTALL_PREFIX=/usr \
+        -DCMAKE_INSTALL_LIBDIR=lib \
+        -DCMAKE_C_FLAGS="-g3 -O0 -fno-omit-frame-pointer" \
+        -DCMAKE_BUILD_TYPE=Debug \
+        . && \
+    make && \
+    cpack -G DEB && \
+    dpkg -i *.deb && \
+    cd / && rm -rf /tmp/libkqueue
+
 #
 #  Install FlameGraph scripts
 #
 RUN git clone --depth 1 https://github.com/brendangregg/FlameGraph /opt/flamegraph \
     && chmod +x /opt/flamegraph/*.pl /opt/flamegraph/*.sh
 
-ENV PATH="/opt/flamegraph:${PATH}"
+ENV PATH="/opt/flamegraph:${PATH}" \
+    DEBUGINFOD_URLS="https://debuginfod.ubuntu.com"
 
 #
 #  Install Inferno for callgrind → folded conversion