tools/tools/kernxref/kernxref.sh

   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 # $FreeBSD: src/tools/tools/kernxref/kernxref.sh,v 1.13 1999/08/28 00:54:30 peter Exp $
  11 # $DragonFly: src/tools/tools/kernxref/kernxref.sh,v 1.3 2004/03/20 16:27:41 drhodus Exp $
  12 #
  13 # This shellscript will make a cross reference of the symbols of the LINT
  14 # kernel.
  15
  16 COMPILEDIR=/sys/compile
  17 KERNELNAME=LINT
  18
  19 cd ${COMPILEDIR}/${KERNELNAME}
  20
  21 nm -gon `echo *.o /boot/kernel/*.ok     \
  22         | tr ' ' '\012'                                 \
  23         | egrep -v '(aicasm|genassym)'`                 \
  24         | tr : ' ' | awk '
  25 NF > 1  {
  26         if (length($2) == 8) {
  27                 $2 = $3
  28                 $3 = $4
  29         }
  30         if ($2 == "t")
  31                 next
  32         if ($2 == "F")
  33                 next
  34         nm[$3]++
  35         if ($2 == "U") {
  36                 ref[$3]=ref[$3]" "$1
  37         } else if ($2 == "T" || $2 == "D" || $2 == "A") {
  38                 if (def[$3] != "")
  39                         def[$3]=def[$3]" "$1
  40                 else
  41                         def[$3]=$1
  42         } else if ($2 == "?") {
  43                 if (def[$3] == "S")
  44                         i++
  45                 else if (def[$3] != "")
  46                         def[$3]=def[$3]",S"
  47                 else
  48                         def[$3]="S"
  49                 ref[$3]=ref[$3]" "$1
  50         } else if ($2 == "C") {
  51                 if (def[$3] == $2)
  52                         i++
  53                 else if (def[$3] == "")
  54                         def[$3]=$1
  55                 else
  56                         ref[$3]=ref[$3]" "$1
  57         } else {
  58                 print ">>>",$0
  59         }
  60         }
  61 END     {
  62         for (i in nm) {
  63                 printf "%s {%s} %s\n",i,def[i],ref[i]
  64         }
  65         }
  66 ' | sort | awk '
  67         {
  68         if ($2 == "{S}")
  69                 $2 = "<Linker set>"
  70         if (length($3) == 0) {
  71                 printf "%-30s %3d %s\n\tUNREF\n",$1,0, $2
  72                 N1++
  73         } else if ($2 == "{}") {
  74                 printf "%-30s %3d {UNDEF}\n",$1, NF-2
  75                 N2++
  76         } else {
  77                 printf "%-30s %3d %s",$1,NF-2,$2
  78                 p = 80;
  79                 for (i = 3 ; i <= NF; i++) {
  80                         if (p+length ($i)+1 > 78) {
  81                                 printf "\n\t%s", $i
  82                                 p = 7;
  83                         } else {
  84                                 printf " %s", $i
  85                         }
  86                         p += 1 + length ($i)
  87                 }
  88                 printf "\n"
  89                 N3++
  90                 if (NF-2 == 1)
  91                         N4++
  92                 if (NF-2 == 2)
  93                         N5++
  94         }
  95         }
  96 END     {
  97         printf "Total symbols: %5d\n",N1+N2+N3
  98         printf "unref symbols: %5d\n",N1
  99         printf "undef symbols: %5d\n",N2
 100         printf "1 ref symbols: %5d\n",N4
 101         printf "2 ref symbols: %5d\n",N5
 102         }
 103 '