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32 results

depmod.sh

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  • depmod.sh 1.67 KiB
    #!/bin/sh
    #
    # A depmod wrapper used by the toplevel Makefile
    
    if test $# -ne 3; then
    	echo "Usage: $0 /sbin/depmod <kernelrelease> <symbolprefix>" >&2
    	exit 1
    fi
    DEPMOD=$1
    KERNELRELEASE=$2
    SYMBOL_PREFIX=$3
    
    if ! test -r System.map -a -x "$DEPMOD"; then
    	exit 0
    fi
    
    # older versions of depmod don't support -P <symbol-prefix>
    # support was added in module-init-tools 3.13
    if test -n "$SYMBOL_PREFIX"; then
    	release=$("$DEPMOD" --version)
    	package=$(echo "$release" | cut -d' ' -f 1)
    	if test "$package" = "module-init-tools"; then
    		version=$(echo "$release" | cut -d' ' -f 2)
    		later=$(printf '%s\n' "$version" "3.13" | sort -V | tail -n 1)
    		if test "$later" != "$version"; then
    			# module-init-tools < 3.13, drop the symbol prefix
    			SYMBOL_PREFIX=""
    		fi
    	fi
    	if test -n "$SYMBOL_PREFIX"; then
    		SYMBOL_PREFIX="-P $SYMBOL_PREFIX"
    	fi
    fi
    
    # older versions of depmod require the version string to start with three
    # numbers, so we cheat with a symlink here
    depmod_hack_needed=true
    tmp_dir=$(mktemp -d ${TMPDIR:-/tmp}/depmod.XXXXXX)
    mkdir -p "$tmp_dir/lib/modules/$KERNELRELEASE"
    if "$DEPMOD" -b "$tmp_dir" $KERNELRELEASE 2>/dev/null; then
    	if test -e "$tmp_dir/lib/modules/$KERNELRELEASE/modules.dep" -o \
    		-e "$tmp_dir/lib/modules/$KERNELRELEASE/modules.dep.bin"; then
    		depmod_hack_needed=false
    	fi
    fi
    rm -rf "$tmp_dir"
    if $depmod_hack_needed; then
    	symlink="$INSTALL_MOD_PATH/lib/modules/99.98.$KERNELRELEASE"
    	ln -s "$KERNELRELEASE" "$symlink"
    	KERNELRELEASE=99.98.$KERNELRELEASE
    fi
    
    set -- -ae -F System.map
    if test -n "$INSTALL_MOD_PATH"; then
    	set -- "$@" -b "$INSTALL_MOD_PATH"
    fi
    "$DEPMOD" "$@" "$KERNELRELEASE" $SYMBOL_PREFIX
    ret=$?
    
    if $depmod_hack_needed; then
    	rm -f "$symlink"
    fi
    
    exit $ret