strip kernel modules more aggressively: make all global symbols local, rename all symbols in the symbol table to make them compress better
SVN-Revision: 30662master
parent
c918810414
commit
c2590fe930
@ -0,0 +1,38 @@ |
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#!/usr/bin/env bash |
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[ -n "$CROSS" ] || { |
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echo "The variable CROSS must be set to point to the cross-compiler prefix" |
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exit 1 |
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} |
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MODULE="$1" |
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[ "$#" -ne 1 ] && { |
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echo "Usage: $0 <module>" |
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exit 1 |
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} |
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${CROSS}objcopy \ |
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--strip-unneeded \ |
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-R .comment \ |
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-R .pdr \ |
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-R .mdebug.abi32 \ |
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-R .note.gnu.build-id \ |
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-R .gnu.attributes \ |
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-R .reginfo \ |
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-G __this_module \ |
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-x "$MODULE" "$MODULE.tmp" |
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${CROSS}nm "$MODULE.tmp" | awk ' |
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BEGIN { |
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n = 0 |
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} |
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$3 && $2 ~ /[brtd]/ && $3 !~ /\$LC/ { |
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print "--redefine-sym "$3"=_"n; |
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n = n + 1 |
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} |
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' > "$MODULE.tmp1" |
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|
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${CROSS}objcopy `cat ${MODULE}.tmp1` ${MODULE}.tmp ${MODULE}.out |
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mv "${MODULE}.out" "${MODULE}" |
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rm -f "${MODULE}".t* |
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