depot/third_party/nixpkgs/pkgs/development/cuda-modules/setup-hooks/auto-add-cuda-compat-runpath.sh
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GitOrigin-RevId: bd645e8668ec6612439a9ee7e71f7eac4099d4f6
2024-01-02 12:29:13 +01:00

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# 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"
elfHasDynamicSection() {
patchelf --print-rpath "$1" >& /dev/null
}
autoAddCudaCompatRunpathPhase() (
local outputPaths
mapfile -t outputPaths < <(for o in $(getAllOutputNames); do echo "${!o}"; done)
find "${outputPaths[@]}" -type f -executable -print0 | while IFS= read -rd "" f; do
if isELF "$f"; then
# patchelf returns an error on statically linked ELF files
if elfHasDynamicSection "$f" ; then
echo "autoAddCudaCompatRunpathHook: patching $f"
local origRpath="$(patchelf --print-rpath "$f")"
patchelf --set-rpath "@libcudaPath@:$origRpath" "$f"
elif (( "${NIX_DEBUG:-0}" >= 1 )) ; then
echo "autoAddCudaCompatRunpathHook: skipping a statically-linked ELF file $f"
fi
fi
done
)
postFixupHooks+=(autoAddCudaCompatRunpathPhase)