forked from mirrors/nixpkgs
8e557ed2c5
Factor a bintools (i.e. binutils / cctools) wrapper out of cc-wrapper. While only LD is wrapped, the setup hook defines environment variables on behalf of other utilites.
109 lines
3.3 KiB
Bash
109 lines
3.3 KiB
Bash
#! @shell@
|
|
|
|
set -eu -o pipefail
|
|
|
|
path_backup="$PATH"
|
|
if [ -n "@coreutils_bin@" ]; then
|
|
PATH="@coreutils_bin@/bin"
|
|
fi
|
|
|
|
declare -r recurThreshold=300
|
|
|
|
declare overflowCount=0
|
|
for ((n=0; n < $#; ++n)); do
|
|
case "${!n}" in
|
|
-l*) let overflowCount+=1 ;;
|
|
-reexport-l*) let overflowCount+=1 ;;
|
|
*) ;;
|
|
esac
|
|
done
|
|
|
|
declare -a allArgs=()
|
|
|
|
if (( "$overflowCount" <= "$recurThreshold" )); then
|
|
allArgs=("$@")
|
|
else
|
|
declare -a childrenLookup=() childrenLink=()
|
|
|
|
while (( $# )); do
|
|
case "$1" in
|
|
-L/*)
|
|
childrenLookup+=("$1")
|
|
allArgs+=("$1")
|
|
;;
|
|
-L)
|
|
echo "cctools LD does not support '-L foo' or '-l foo'" >&2
|
|
exit 1
|
|
;;
|
|
-l)
|
|
echo "cctools LD does not support '-L foo' or '-l foo'" >&2
|
|
exit 1
|
|
;;
|
|
-lazy_library | -lazy_framework | -lto_library)
|
|
# We aren't linking any "azy_library", "to_library", etc.
|
|
allArgs+=("$1")
|
|
;;
|
|
-lazy-l | -weak-l) allArgs+=("$1") ;;
|
|
# We can't so easily prevent header issues from these.
|
|
-lSystem) allArgs+=("$1") ;;
|
|
# Special case as indirection seems like a bad idea for something
|
|
# so fundamental. Can be removed for simplicity.
|
|
-l?* | -reexport-l?*) childrenLink+=("$1") ;;
|
|
*) allArgs+=("$1") ;;
|
|
esac
|
|
|
|
shift
|
|
done
|
|
|
|
declare n=0
|
|
while (( $n < "${#childrenLink[@]}" )); do
|
|
if [[ "${childrenLink[n]}" = -l* ]]; then
|
|
childrenLink[n]="-reexport${childrenLink[n]}"
|
|
fi
|
|
let ++n
|
|
done
|
|
unset n
|
|
|
|
declare -r outputNameLibless=$(basename $( \
|
|
if [[ -z "${outputName:+isUndefined}" ]]; then
|
|
echo unnamed
|
|
elif [[ "${outputName:0:3}" = lib ]]; then
|
|
echo "${outputName:3}"
|
|
else
|
|
echo "${outputName}"
|
|
fi))
|
|
declare -ra children=("$outputNameLibless-reexport-delegate-0" \
|
|
"$outputNameLibless-reexport-delegate-1")
|
|
|
|
mkdir -p "$out/lib"
|
|
|
|
PATH="$PATH:@out@/bin"
|
|
|
|
symbolBloatObject=$outputNameLibless-symbol-hack.o
|
|
if [[ ! -e $symbolBloatObject ]]; then
|
|
# `-Q` means use GNU Assembler rather than Clang, avoiding an awkward
|
|
# dependency cycle.
|
|
printf '.private_extern _______child_hack_foo\nchild_hack_foo:\n' \
|
|
| @targetPrefix@as -Q -- -o $symbolBloatObject
|
|
fi
|
|
|
|
# first half of libs
|
|
@targetPrefix@ld -macosx_version_min $MACOSX_DEPLOYMENT_TARGET -arch x86_64 -dylib \
|
|
-o "$out/lib/lib${children[0]}.dylib" \
|
|
-install_name "$out/lib/lib${children[0]}.dylib" \
|
|
"${childrenLookup[@]}" "$symbolBloatObject" \
|
|
"${childrenLink[@]:0:$((${#childrenLink[@]} / 2 ))}"
|
|
|
|
# second half of libs
|
|
@targetPrefix@ld -macosx_version_min $MACOSX_DEPLOYMENT_TARGET -arch x86_64 -dylib \
|
|
-o "$out/lib/lib${children[1]}.dylib" \
|
|
-install_name "$out/lib/lib${children[1]}.dylib" \
|
|
"${childrenLookup[@]}" "$symbolBloatObject" \
|
|
"${childrenLink[@]:$((${#childrenLink[@]} / 2 ))}"
|
|
|
|
allArgs+=("-L$out/lib" "-l${children[0]}" "-l${children[1]}")
|
|
fi
|
|
|
|
PATH="$path_backup"
|
|
exec @prog@ "${allArgs[@]}"
|