/usr/bin/wrap-link.sh is in xenomai-runtime 2.6.2.1-2ubuntu2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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# Split link-edit into two stage for linking static applications with
# Xenomai user-space posix skin.
set -e
usage() {
cat <<EOF
$1 [options] command-line
Split command-line in two parts for linking static applications with
Xenomai user-space posix skin in two stages.
Options:
-q be quiet
-v be verbose (print each command before running it)
-n dry run (print all commands but don't run any)
Example:
$1 -v gcc -o foo foo.o -Wl,@/usr/xenomai/lib/posix.wrappers -L/usr/xenomai/lib -lpthread_rt -lpthread -lrt
will print and run:
+ gcc -o foo.tmp -Wl,-Ur -nostdlib foo.o -Wl,@/usr/xenomai/lib/posix.wrappers -L/usr/xenomai/lib
+ gcc -o foo foo.tmp -L/usr/xenomai/lib -lpthread_rt -lpthread -lrt
+ rm foo.tmp
EOF
}
add_2stages() {
stage1_args="$stage1_args $@"
stage2_args="$stage2_args $@"
}
add_linker_flag() {
if $next_is_wrapped_symbol; then
stage1_args="$stage1_args -Wl,--wrap $@"
next_is_wrapped_symbol=false
else
case "$@" in
*--as-needed*)
stage2_args="$stage2_args $@"
;;
*)
add_2stages "$@"
;;
esac
fi
}
add_linker_obj() {
if $stage2; then
stage2_args="$stage2_args $@"
else
stage1_args="$stage1_args $@"
fi
}
if test -n "$V" && test $V -gt 0; then
verbose=:
else
verbose=false
fi
dryrun=
progname="$0"
if test $# -eq 0; then
usage "$progname"
exit 0
fi
while test $# -gt 0; do
arg="$1"
shift
case "$arg" in
-v)
verbose=:
;;
-q)
verbose=false
;;
-n)
dryrun="echo # "
;;
-*)
cc="$cc $arg"
;;
*gcc*|*g++*)
cc="$cc $arg"
break
;;
*ld)
usage "$progname"
/bin/echo -e "\nlinker must be gcc or g++, not ld"
exit 1
;;
*)
cc="$cc $arg"
;;
esac
done
test -z "$dryrun" || verbose=false
next_is_wrapped_symbol=false
onestage_args="$@"
stage1_args=""
stage2_args=""
stage2=false
while test $# -gt 0; do
arg="$1"
shift
case "$arg" in
*pthread_rt*)
stage2_args="$stage2_args $arg"
stage2=:
;;
-Xlinker)
arg="$1"
shift
case "$arg" in
--wrap)
next_is_wrapped_symbol=:
;;
@*posix.wrappers)
stage1_args="$stage1_args -Xlinker $arg"
;;
*)
add_linker_flag -Xlinker "$arg"
;;
esac
;;
-Wl,--wrap)
next_is_wrapped_symbol=:
;;
-Wl,@*posix.wrappers|-Wl,--wrap,*)
stage1_args="$stage1_args $arg"
;;
-Wl,*)
add_linker_flag "$arg"
;;
-o)
output="$1"
shift
;;
-o*)
output=`expr "$arg" : '-o\(.*\)'`
;;
-l)
arg="$1"
shift
add_linker_obj -l $arg
;;
-l*) #a library
add_linker_obj $arg
;;
*.so)
stage2_args="$stage2_args $arg"
;;
*.o)
# Force .o to stage1 regardless of its position
stage1_args="$stage1_args $arg"
;;
*)
if test -e "$arg"; then
add_linker_obj $arg
else
add_2stages "$arg"
fi
;;
esac
done
if $stage2; then
$verbose && set -x
$dryrun $cc -o "$output.tmp" -Wl,-Ur -nostdlib $stage1_args
$dryrun $cc -o "$output" "$output.tmp" $stage2_args
$dryrun rm -f $output.tmp
else
$verbose && set -x
$dryrun $cc -o "$output" $onestage_args
fi
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