depmod.sh 1.33 KB
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#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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#
# A depmod wrapper used by the toplevel Makefile

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if test $# -ne 2; then
	echo "Usage: $0 /sbin/depmod <kernelrelease>" >&2
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	exit 1
fi
DEPMOD=$1
KERNELRELEASE=$2

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if ! test -r System.map ; then
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	echo "Warning: modules_install: missing 'System.map' file. Skipping depmod." >&2
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	exit 0
fi
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if [ -z $(command -v $DEPMOD) ]; then
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	echo "Warning: 'make modules_install' requires $DEPMOD. Please install it." >&2
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	echo "This is probably in the kmod package." >&2
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	exit 0
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fi

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# older versions of depmod require the version string to start with three
# numbers, so we cheat with a symlink here
depmod_hack_needed=true
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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/$KERNELRELEASE/modules.dep.bin"; then
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		depmod_hack_needed=false
	fi
fi
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rm -rf "$tmp_dir"
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if $depmod_hack_needed; then
	symlink="$INSTALL_MOD_PATH/lib/modules/99.98.$KERNELRELEASE"
	ln -s "$KERNELRELEASE" "$symlink"
	KERNELRELEASE=99.98.$KERNELRELEASE
fi

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set -- -ae -F System.map
if test -n "$INSTALL_MOD_PATH"; then
	set -- "$@" -b "$INSTALL_MOD_PATH"
fi
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"$DEPMOD" "$@" "$KERNELRELEASE"
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ret=$?

if $depmod_hack_needed; then
	rm -f "$symlink"
fi

exit $ret