kernxref.sh revision 12132 
1:
2#
3# ----------------------------------------------------------------------------
4# "THE BEER-WARE LICENSE" (Revision 42):
5# <phk@login.dknet.dk> wrote this file.  As long as you retain this notice you
6# can do whatever you want with this stuff. If we meet some day, and you think
7# this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
8# ----------------------------------------------------------------------------
9#
10# $Id: kernxref.sh,v 1.1 1995/10/15 11:33:42 phk Exp $
11#
12# This shellscript will make a cross reference of the symbols of the LINT 
13# kernel.
14
15cd /sys/compile/LINT
16nm -gon *.o /sys/libkern/obj/*.o /lkm/*.o | tr : ' ' | awk '
17NF > 1	{
18	if (length($2) == 8) {
19		$2 = $3
20		$3 = $4
21	}
22	if ($2 == "t") 
23		next
24	if ($2 == "F")
25		next
26	nm[$3]++
27	if ($2 == "U") {
28		ref[$3]=ref[$3]" "$1
29	} else if ($2 == "T" || $2 == "D" || $2 == "A") {
30		if (def[$3] != "")
31			def[$3]=def[$3]","$1
32		else
33			def[$3]=$1
34	} else if ($2 == "?") {
35		if (def[$3] == "S")
36			i++
37		else if (def[$3] != "")
38			def[$3]=def[$3]",S"
39		else
40			def[$3]="S"
41		ref[$3]=ref[$3]" "$1
42	} else if ($2 == "C") {
43		if (def[$3] == $2)
44			i++
45		else if (def[$3] != "")
46			def[$3]=def[$3]",C"
47		else
48			def[$3]="C"
49		ref[$3]=ref[$3]" "$1
50	} else {
51		print ">>>",$0
52	}
53	}
54END	{
55	for (i in nm) {
56		printf "%s {%s} %s\n",i,def[i],ref[i]
57	}
58	}
59' | sort | awk '
60	{
61	if ($2 == "{S}")
62		$2 = "<Linker set>"
63	if ($2 == "{C}")
64		$2 = "<Common symbol>"
65	if (length($3) == 0) {
66		printf "%-30s %s UNREF\n",$1,$2
67	} else if ($2 == "{}") {
68		printf "%-30s {UNDEF}\n",$1
69	} else {
70		printf "%-30s %s\n\t%s\n",$1,$2,$3
71	}
72	}
73'
74