New sources layout

Change-Id: Ic716f336b7071063997cf5b4dae6d50e0b4631e9

minix/commands/unstack/unstack.sh

@@ -0,0 +1,74 @@
+#!/bin/sh
+
+# Look at /usr/pkg/bin first in case there is an old nm in /usr/bin
+PATH=/usr/pkg/bin:$PATH:/usr/gnu/bin
+
+# Does procfs give us some extra 'symbols'?
+IPCVECS=/proc/ipcvecs
+if [ -f $IPCVECS ]
+then	EXTRANM="cat $IPCVECS"
+fi
+
+# Check usage
+if [ $# -lt 1 ]
+then	echo "Usage: unstack <executable> [0x... [0x... ] ]"
+	exit 1
+fi
+
+# Check invocation mode
+case "`basename $0`" in
+	datasizes)
+		echo "datasizes is obsolete; please use nm --size-sort instead."
+		exit 1
+		;;
+	unstack)
+		mode=stack
+		;;
+	*)
+		echo "Invoked as $0?"
+		exit 1
+		;;
+esac
+
+# Get executable name
+executable=$1
+shift
+
+if ! which gawk >/dev/null 2>&1
+then	echo "Please install gawk."
+	exit 1
+fi
+
+# Invoke binutils nm or ack nm?
+if file $executable | grep ELF >/dev/null 2>&1
+then	NM="nm"
+else	NM="acknm"
+fi
+
+SYMLIST=/tmp/unstack.$$
+
+# store sorted, filtered nm output once
+(
+$NM $executable | sed 's/^/0x/'
+$EXTRANM | sed 's/^/0x/'
+
+# Add shared libraries
+ldd -f"%p %x\n" $executable 2>/dev/null | while read lib addr
+do	echo >&2 "Adding $lib at $addr"
+	nm -n $lib | sed 's/^/0x/' | grep ' [Tt] ' | \
+gawk -v liboffset=$addr -v libname=$lib --non-decimal-data '{ printf "0x%lx %s %s[%s]\n", $1+liboffset, $2, $3, libname }'
+done
+) | sort -x | grep ' [Tt] [^.]' >$SYMLIST
+
+while [ $# -gt 0 ]
+do	 gawk <$SYMLIST --non-decimal-data -v symoffset=$1 '
+	  {  if($1 > symoffset) { printf "%s+0x%x\n", name, symoffset-prevoffset; exit }
+	     name=$3; prevoffset=$1;
+	  }'
+	shift
+done
+
+rm -f $SYMLIST
+
+exit 1
+