Use Ubuntu's elfutils in Docker and devcontainers

Ubuntu currently ships 0.194, which is slightly older than the 0.195
that we vendor with cibuildwheel, but the Docker image is used only for
testing, and so the only reason we'd need to use a newer version there
is if we want to use a feature that's only available in a later version,
or if we're affected by a bug in 0.194 that's fixed in a later version.
If either of those ever happens, we can reintroduce the build from
source at that point.

Author: mbmtbtbc

CONTRIBUTING.md

@@ -25,7 +25,7 @@ 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.
+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"
@@ -57,21 +21,19 @@ 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
-
 # Install uv
 COPY --from=ghcr.io/astral-sh/uv:latest /uv /usr/local/bin/uv
 
 # Set environment variables
 ENV VIRTUAL_ENV="/venv" \
     PATH="/venv/bin:/root/.local/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin" \
     PYTHONDONTWRITEBYTECODE=1 \
-    TZ=UTC \
-    PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
+    TZ=UTC
 
 # Install Python interpreters via uv, and install setuptools for each
 RUN uv_versions="3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15" \

pyproject.toml

@@ -121,13 +121,14 @@ skip = "*-musllinux_aarch64"
 [tool.cibuildwheel.linux]
 before-all = [
   "yum install -y libzstd-devel cmake",
+  "yum install -y devtoolset-10-make || true",  # Install a new enough GNU make on manylinux2014
   "cd /",
   "VERS=0.195",
   "curl https://sourceware.org/elfutils/ftp/$VERS/elfutils-$VERS.tar.bz2 > ./elfutils.tar.bz2",
   "tar -xf elfutils.tar.bz2",
   "cd elfutils-$VERS",
   "CFLAGS='-Wno-error -g -O3' CXXFLAGS='-Wno-error -g -O3' ./configure --disable-nls --enable-libdebuginfod=dummy --disable-debuginfod --with-zstd",
-  "make install"
+  'PATH="/opt/rh/devtoolset-10/root/usr/bin/:$PATH" make install',  # Ensure we pick up gnu make 4.x on manylinux2014
 ]
 
 # Override the default linux before-all for musl linux