76 lines
1.3 KiB
Bash
76 lines
1.3 KiB
Bash
#!/bin/sh
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# Look at /usr/pkg/bin first in case there is an old nm in /usr/bin
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PATH=/usr/pkg/bin:$PATH:/usr/gnu/bin
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# Check usage
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if [ $# -lt 1 ]
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then echo "Usage: unstack <executable> [0x... [0x... ] ]"
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echo " datasizes <executable>"
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exit 1
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fi
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# Check invocation mode
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case "`basename $0`" in
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datasizes)
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mode=data
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;;
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unstack)
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mode=stack
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;;
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*)
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echo "Invoked as $0?"
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exit 1
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;;
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esac
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# Get executable name
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executable=$1
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shift
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# gnu nm can be gnm or nm
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if which gnm >/dev/null 2>&1
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then GNM=gnm
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else GNM=nm
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fi
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ELFNM=/usr/gnu_cross/bin/i386-pc-minix3-nm
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# Invoke gnu nm or ack nm?
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if file $executable | grep NSYM >/dev/null 2>&1
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then NM="$GNM --radix=d"
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elif file $executable | grep ELF >/dev/null 2>&1
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then NM="$ELFNM --radix=d"
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else NM="acknm -d"
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fi
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# Invoked as unstack?
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if [ $mode = stack ]
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then
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while [ $# -gt 0 ]
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do dec="`printf %d $1`"
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$NM -n $executable | grep ' [Tt] [^.]' | awk '
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{ if($1 > '$dec') { printf "%s+0x%x\n", name, '$dec'-offset; exit }
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name=$3; offset=$1
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}'
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shift
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done
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exit 0
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fi
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# Invoked as datasizes?
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if [ $mode = data ]
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then
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$NM -n $executable |
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grep ' [bBdD] [^.]' | awk '{ if (lastpos) printf "%10ld kB %s\n", ($1-lastpos)/1024, lastname; lastpos=$1; lastname=$3 }' | sort -n
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exit 0
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fi
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# Can't happen.
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echo "Impossible invocation."
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exit 1
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