Update elfutils version and use ubuntu apt packages in dockerfile

CONTRIBUTING.md

@@ -24,8 +24,8 @@ a ready-to-use environment directly:
 Once the codespace is ready, all dependencies will be installed and hooks
 will be configured automatically.
 
-Note that the dev container is built from the project's `Dockerfile`, which
-compiles `elfutils` from source, so the first build takes a few minutes.
+Note that the dev container is built from the project's `Dockerfile`, which 
+uses the distribution-provided `libdw` and `libelf` development packages.
 
 pystack requires elevated ptrace permissions to inspect processes — the dev
 container already handles this via `--cap-add=SYS_PTRACE` and

Dockerfile

@@ -1,40 +1,4 @@
-# Stage 1: Elfutils build stage
-FROM ubuntu:26.04 AS elfutils_builder
-ARG DEBIAN_FRONTEND=noninteractive
-ENV VERS=0.193
-
-# Install elfutils build dependencies
-RUN apt-get update \
-    && apt-get install -y --force-yes --no-install-recommends software-properties-common gpg-agent \
-        build-essential \
-        libzstd-dev \
-        ca-certificates \
-        curl \
-        lsb-release \
-        bzip2 \
-        zlib1g-dev \
-        zlib1g-dev:native \
-        libbz2-dev \
-        liblzma-dev \
-        gettext \
-        po-debconf \
-        gawk \
-        libc6-dbg \
-        flex \
-        bison \
-        pkg-config \
-        libarchive-dev \
-        libcurl4-gnutls-dev \
-    && apt-get clean \
-    && rm -rf /var/lib/apt/lists/* \
-    && mkdir /elfutils \
-    && cd /elfutils \
-    && curl https://sourceware.org/elfutils/ftp/$VERS/elfutils-$VERS.tar.bz2 > ./elfutils.tar.bz2 \
-    && tar -xf elfutils.tar.bz2 --strip-components 1 \
-    && CFLAGS='-Wno-error -g -O3' CXXFLAGS='-Wno-error -g -O3' ./configure --disable-nls --enable-libdebuginfod=dummy --disable-debuginfod --with-zstd \
-    && make install
-
-# Stage 2: Final stage
+# Build stage
 FROM ubuntu:26.04
 ARG DEBIAN_FRONTEND=noninteractive
 LABEL org.opencontainers.image.source="https://github.com/bloomberg/pystack"
@@ -79,19 +43,17 @@ RUN apt-get update \
     liblzma-dev \
     libbz2-dev \
     zlib1g-dev \
+    libdw-dev \
+    libelf-dev \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/* /etc/debuginfod/*.urls
 
-# Copy the installed files from the elfutils_builder stage
-COPY --from=elfutils_builder /usr/local /usr/local
-
 # Set environment variables
 ENV PYTHON=python3.12 \
     VIRTUAL_ENV="/venv" \
     PATH="/venv/bin:$PATH" \
     PYTHONDONTWRITEBYTECODE=1 \
-    TZ=UTC \
-    PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
+    TZ=UTC 
 
 # Copy the required files
 COPY pyproject.toml /tmp/

pyproject.toml

@@ -121,7 +121,7 @@ skip = "*-musllinux_aarch64"
 before-all = [
   "yum install -y libzstd-devel cmake",
   "cd /",
-  "VERS=0.193",
+  "VERS=0.195",
   "curl https://sourceware.org/elfutils/ftp/$VERS/elfutils-$VERS.tar.bz2 > ./elfutils.tar.bz2",
   "tar -xf elfutils.tar.bz2",
   "cd elfutils-$VERS",
@@ -143,7 +143,7 @@ before-all = [
   # https://git.alpinelinux.org/aports/tree/main/elfutils/musl-macros.patch
   "cd /",
   "apk add --update argp-standalone bison bsd-compat-headers bzip2-dev flex-dev libtool linux-headers musl-fts-dev musl-libintl musl-obstack-dev xz-dev zlib-dev zstd-dev cmake",
-  "VERS=0.193",
+  "VERS=0.195",
   "curl https://sourceware.org/elfutils/ftp/$VERS/elfutils-$VERS.tar.bz2 > ./elfutils.tar.bz2",
   "tar -xf elfutils.tar.bz2",
   "cd elfutils-$VERS",