161 lines
3.0 KiB
Bash
Executable File
161 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
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# Stream producers
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#
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# These produce a stream of escaped new-line separated items
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#
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# Stream the given arguments
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#
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VGL_sourceS() {
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( printf '%q\n' "$@" ) || (( $? == 141 ))
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}
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# Stream the results of the given command
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#
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VGL_systemS() {
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declare -a command=("$@")
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( eval $(printf '%q ' "${command[@]}") ) || (( $? == 141 ))
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}
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# Stream the results of find (correctly escapes all filenames)
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#
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VGL_findS() {
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declare -a options=("$@") file
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VGL_systemS find "${options[@]}" -print0 |
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while read -d '' -r file; do
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VGL_sourceS "$file"
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done
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}
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# Stream the closure of the list libraries from an elf file
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#
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VGL_elfLibsS() {
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declare file=$1 line
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VGL_systemS ldd "$file" |
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while read line; do
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line=${line#$'\t'}
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case "$line" in
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*' => not found')
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line=${line% => not found}
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;;
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*' => '*' ('*')')
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line=${line#* => }
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line=${line% (*)}
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;;
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*' ('*')')
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line=${line% (*)}
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;;
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esac
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VGL_sourceS "$line"
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done
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}
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# Stream transformers
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#
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# Take in a set of options and transform a stream of new-line separated items
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#
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# Group all items onto a single line separated by given deliminator (or space)
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#
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VGL_joinS() {
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declare deliminator=${1- } next
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if read next; then
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printf '%q' "$next"
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while read next; do
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printf '%s%q' "$deliminator" "$next"
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done
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printf '\n'
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fi
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}
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# Remove all items for which the given command returns false
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#
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VGL_filterS() {
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declare command=("$@")
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while read next; do
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if eval $(printf '%q ' "${command[@]}" "$next"); then
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VGL_sourceS "$next"
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fi
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done
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}
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# Stream consumers
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#
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# These consume a stream of escaped new-line separated items
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#
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VGL_anyS() {
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declare command=("$@")
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while read next; do
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if eval $(printf '%q ' "${command[@]}" "$next"); then
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return 0
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fi
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done
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return 1
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}
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# Tests for the filter transformer
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#
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# Check for an elf file (binary or library)
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#
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VGL_isElfBin() {
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declare file=$1
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case "$(file -b -N --mime-type "$file")" in
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application/x-executable | application/x-pie-executable)
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return 0 ;;
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*)
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return 1 ;;
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esac
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}
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# Check for libGL
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#
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VGL_isLibGL() {
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declare file=$1
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case "$file" in
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libGL.so* | */libGL.so*)
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return 0 ;;
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*)
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return 1 ;;
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esac
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}
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# Setup hook
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#
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# Find all executables that depend on libGL and add a libvglfaker.so dependency
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#
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VGL_autoAddVGL() {
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echo "Inserting VirtualGL into OpenGL executables in $prefix..." >&2
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for output in $outputs; do
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VGL_findS "${!output}" -type f | VGL_filterS VGL_isElfBin | {
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declare file
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while read file; do
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VGL_elfLibsS "$file" |
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if VGL_anyS VGL_isLibGL; then
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VGL_sourceS "$file"
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fi
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done
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} | {
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declare file
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while read file; do
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printf 'patchelf --add-needed @virtualglLib@/lib/libvglfaker.so %q\n' "$file" >&2
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patchelf --add-needed @virtualglLib@/lib/libvglfaker.so "$file"
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done
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}
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done
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}
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postFixupHooks+=(VGL_autoAddVGL)
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