nixpkgs/pkgs/development/cuda-modules/setup-hooks/auto-add-cuda-compat-runpath.sh
Yann Hamdaoui 63746cac08
cudaPackages: generalize and refactor setup hook
This PR refactor CUDA setup hooks, and in particular
autoAddOpenGLRunpath and autoAddCudaCompatRunpathHook, that were using a
lot of code in common (in fact, I introduced the latter by copy pasting
most of the bash script of the former). This is not satisfying for
maintenance, as a recent patch showed, because we need to duplicate
changes to both hooks.

This commit abstract the common part in a single shell script that
applies a generic patch action to every elf file in the output. For
autoAddOpenGLRunpath the action is just addOpenGLRunpath (now
addDriverRunpath), and is few line function for
autoAddCudaCompatRunpathHook.

Doing so, we also takes the occasion to use the newer addDriverRunpath
instead of the previous addOpenGLRunpath, and rename the CUDA hook to
reflect that as well.

Co-Authored-By: Connor Baker <connor.baker@tweag.io>
2024-03-15 15:54:21 +01:00

27 lines
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Bash

# shellcheck shell=bash
# Patch all dynamically linked, ELF files with the CUDA driver (libcuda.so)
# coming from the cuda_compat package by adding it to the RUNPATH.
echo "Sourcing auto-add-cuda-compat-runpath-hook"
addCudaCompatRunpath() {
local libPath
local origRpath
if [[ $# -eq 0 ]]; then
echo "addCudaCompatRunpath: no library path provided" >&2
exit 1
elif [[ $# -gt 1 ]]; then
echo "addCudaCompatRunpath: too many arguments" >&2
exit 1
elif [[ "$1" == "" ]]; then
echo "addCudaCompatRunpath: empty library path" >&2
exit 1
else
libPath="$1"
fi
origRpath="$(patchelf --print-rpath "$libPath")"
patchelf --set-rpath "@libcudaPath@:$origRpath" "$libPath"
}
postFixupHooks+=("autoFixElfFiles addCudaCompatRunpath")