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 #
  12 # This shellscript will make a cross reference of the symbols of the LINT64
  13 # kernel.
  14
  15 COMPILEDIR=/sys/compile
  16 KERNELNAME=LINT64
  17
  18 cd ${COMPILEDIR}/${KERNELNAME}
  19
  20 nm -gon `echo *.o /boot/kernel/*.ok     \
  21         | tr ' ' '\012'                                 \
  22         | egrep -v '(genassym)'`                        \
  23         | tr : ' ' | awk '
  24 NF > 1  {
  25         if (length($2) == 8) {
  26                 $2 = $3
  27                 $3 = $4
  28         }
  29         if ($2 == "t")
  30                 next
  31         if ($2 == "F")
  32                 next
  33         nm[$3]++
  34         if ($2 == "U") {
  35                 ref[$3]=ref[$3]" "$1
  36         } else if ($2 == "T" || $2 == "D" || $2 == "A") {
  37                 if (def[$3] != "")
  38                         def[$3]=def[$3]" "$1
  39                 else
  40                         def[$3]=$1
  41         } else if ($2 == "?") {
  42                 if (def[$3] == "S")
  43                         i++
  44                 else if (def[$3] != "")
  45                         def[$3]=def[$3]",S"
  46                 else
  47                         def[$3]="S"
  48                 ref[$3]=ref[$3]" "$1
  49         } else if ($2 == "C") {
  50                 if (def[$3] == $2)
  51                         i++
  52                 else if (def[$3] == "")
  53                         def[$3]=$1
  54                 else
  55                         ref[$3]=ref[$3]" "$1
  56         } else {
  57                 print ">>>",$0
  58         }
  59         }
  60 END     {
  61         for (i in nm) {
  62                 printf "%s {%s} %s\n",i,def[i],ref[i]
  63         }
  64         }
  65 ' | sort | awk '
  66         {
  67         if ($2 == "{S}")
  68                 $2 = "<Linker set>"
  69         if (length($3) == 0) {
  70                 printf "%-30s %3d %s\n\tUNREF\n",$1,0, $2
  71                 N1++
  72         } else if ($2 == "{}") {
  73                 printf "%-30s %3d {UNDEF}\n",$1, NF-2
  74                 N2++
  75         } else {
  76                 printf "%-30s %3d %s",$1,NF-2,$2
  77                 p = 80;
  78                 for (i = 3 ; i <= NF; i++) {
  79                         if (p+length ($i)+1 > 78) {
  80                                 printf "\n\t%s", $i
  81                                 p = 7;
  82                         } else {
  83                                 printf " %s", $i
  84                         }
  85                         p += 1 + length ($i)
  86                 }
  87                 printf "\n"
  88                 N3++
  89                 if (NF-2 == 1)
  90                         N4++
  91                 if (NF-2 == 2)
  92                         N5++
  93         }
  94         }
  95 END     {
  96         printf "Total symbols: %5d\n",N1+N2+N3
  97         printf "unref symbols: %5d\n",N1
  98         printf "undef symbols: %5d\n",N2
  99         printf "1 ref symbols: %5d\n",N4
 100         printf "2 ref symbols: %5d\n",N5
 101         }
 102 '