Attachment 120119 Details for Bug 93107 – Check_elf_files: little help script to find unused libraries or undefined symbols

Check_elf_files: little help script to find unused libraries or undefined symbols

check_elf_files (text/plain), 1.70 KB, created by Giovanni Mariani on 2015-11-25 16:47:28 UTC

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Creator: Giovanni Mariani

Created: 2015-11-25 16:47:28 UTC

Size: 1.70 KB

patch

obsolete

>#!/bin/sh
># Check elf files
>
>if [ -z "$RPM_BUILD_ROOT" ]; then
>    echo "No build root defined" >&2
>    exit 1
>fi
>
>if [ ! -d "$RPM_BUILD_ROOT" ]; then
>    echo "Invalid build root" >&2
>    exit 1
>fi
>
>LIB="`rpm --eval %{_lib}`"
>export LD_LIBRARY_PATH="$RPM_BUILD_ROOT/$LIB:$RPM_BUILD_ROOT/usr/$LIB"
>
>
># TODO: would be nicer to search through files only once..
>find "$RPM_BUILD_ROOT" -type f $ -executable -o -name \*.so\* $ -a \
>	$ ! -path $RPM_BUILD_ROOT/usr/lib/debug/\* -a \
>	   ! -path $RPM_BUILD_ROOT/usr/src/debug/\* $ \
>	-print0 |
>xargs  --no-run-if-empty -0 file -N -L |
>grep -e '\.so.*: ELF.*shared' -e ': ELF.*executable' |
>while read match; do
>path="`echo $match | sed -e 's#$\.so.*$: ELF.*shared.*#\1#' -e 's#: ELF.*executable.*##'`"
>syspath="`echo $path | sed -e \"s#^$RPM_BUILD_ROOT##\"`"
>if echo $match | grep -q -e ': ELF'; then
>    unused_libs="`ldd -u -r $path 2> /dev/null | grep /`"
>    if [ -n "$unused_libs" ]; then
>    	echo "Warning: unused libraries in $syspath: " >&2
>	echo "$unused_libs" >&2
>    fi
>fi
>done
>
>find "$RPM_BUILD_ROOT" -type f -name \*.so\*  -a \
>	$ ! -path $RPM_BUILD_ROOT/usr/lib/debug/\* -a \
>	   ! -path $RPM_BUILD_ROOT/usr/src/debug/\* $ \
>	-print0 |
>xargs  --no-run-if-empty -0 file -N -L |
>grep -e '\.so.*: ELF.*shared' |
>while read match; do
>path="`echo $match | sed -e 's#$\.so.*$: ELF.*shared.*#\1#'`"
>syspath="`echo $path | sed -e \"s#^$RPM_BUILD_ROOT##\"`"
>unused_libs="`ldd -u -r $path 2> /dev/null | grep /`"
>undefined_symbols="`ldd -r $path 2>&1 | grep '^undefined symbol: '| sed -e 's#^undefined symbol:##g' -e \"s#($path).*##g\" | tr -d '\n' | tr -d '\t'`"
>if [ -n "$undefined_symbols" ]; then
>    echo "Warning: undefined symbols in $syspath:$undefined_symbols" >&2
>fi
>done

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Attachments on bug 93107: 120119 | 120120

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