kpatch/kpatch-gcc

#!/bin/bash
# vim: tabstop=4 shiftwidth=4 expandtab
set -o nounset
set -o errexit
set -o pipefail

SCRIPT="`basename $BASH_SOURCE`"

arg1="$1"
shift
args=()
i=0
for arg in "$@"; do
    args[$i]="$arg"
    i=$((i + 1))
done
outfile=

die ()
{
    echo "$SCRIPT: error: $*" >&2
    exit 1
}

if [ -f kpatch-in-progress ] && [ "$arg1" = "gcc" ]; then
    while [ "$#" -gt 0 ]; do
        if [ "$1" = "-o" ]; then
            case "$2" in
                *.mod.o|*built-in.o|vmlinux.o|.tmp_kallsyms1.o|.tmp_kallsyms2.o|init/version.o|arch/x86/boot/version.o|arch/x86/boot/compressed/eboot.o|arch/x86/boot/header.o|arch/x86/boot/compressed/efi_stub_64.o|arch/x86/boot/compressed/piggy.o)
                    ;;
                *.o)
                    cp -f "$2" "$2.kpatch_orig"
                    ;;
            esac
            break
        fi
        shift
    done
fi

#exec $arg1 $args
exec "$arg1" "${args[@]}"