24 lines
787 B
Bash
Executable file
24 lines
787 B
Bash
Executable file
#!/bin/sh
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# Extract from an ELF shared object file just the dynamic symbols necessary
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# to link against it and the (GNU extension) warning sections that linking
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# against it may use to produce warning messages.
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infile=$1
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outfile=$2
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# Handle both objdump -h output formats.
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osechdr='^SECTION [0-9]+ \['
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nsechdr='^ +[0-9]+ '
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$OBJCOPY -S `$OBJDUMP -h $infile | $AWK "
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/($osechdr|$nsechdr)"'\.(hash|dyn[a-z]+|gnu\.warning[a-zA-Z_.]*) / { next; }
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/'"$osechdr"'/ { printf "--remove-section=%s ", $3 }
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/'"$nsechdr"'/ { printf "--remove-section=%s ", $2 }
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' |
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# The old format puts brackets around section names. The new format fails
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# to delimit long section names from the following hex digits.
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sed -e 's/[][]//g' -e 's/0[0-9a-f]* / /g'` $infile $outfile.new
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mv -f $outfile.new $outfile
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