tools/tools/shlib-compat/makesyscalls-fake.sh

   1 #! /bin/sh -
   2 #
   3 # $FreeBSD$
   4
   5 set -e
   6
   7 case $# in
   8     0)  echo "usage: $0 input-file <config-file>" 1>&2
   9         exit 1
  10         ;;
  11 esac
  12
  13 if [ -n "$2" -a -f "$2" ]; then
  14         . $2
  15 fi
  16
  17 sed -e '
  18 s/\$//g
  19 :join
  20         /\\$/{a\
  21
  22         N
  23         s/\\\n//
  24         b join
  25         }
  26 2,${
  27         /^#/!s/\([{}()*,]\)/ \1 /g
  28 }
  29 ' < $1 | awk '
  30         BEGIN {
  31                 printf "#include <sys/param.h>\n"
  32                 printf "#include <machine/atomic.h>\n"
  33                 printf "\n"
  34                 printf "#include <sys/_semaphore.h>\n"
  35                 printf "#include <sys/aio.h>\n"
  36                 printf "#include <sys/cpuset.h>\n"
  37                 printf "#include <sys/jail.h>\n"
  38                 printf "#include <sys/linker.h>\n"
  39                 printf "#include <sys/mac.h>\n"
  40                 printf "#include <sys/module.h>\n"
  41                 printf "#include <sys/mount.h>\n"
  42                 printf "#include <sys/mqueue.h>\n"
  43                 printf "#include <sys/msg.h>\n"
  44                 printf "#include <sys/poll.h>\n"
  45                 printf "#include <sys/proc.h>\n"
  46                 printf "#include <sys/resource.h>\n"
  47                 printf "#include <sys/sem.h>\n"
  48                 printf "#include <sys/shm.h>\n"
  49                 printf "#include <sys/signal.h>\n"
  50                 printf "#include <sys/signalvar.h>\n"
  51                 printf "#include <sys/socket.h>\n"
  52                 printf "#include <sys/stat.h>\n"
  53                 printf "#include <sys/thr.h>\n"
  54                 printf "#include <sys/time.h>\n"
  55                 printf "#include <sys/timex.h>\n"
  56                 printf "#include <sys/timeffc.h>\n"
  57                 printf "#include <sys/ucontext.h>\n"
  58                 printf "#include <sys/utsname.h>\n"
  59                 printf "#include <sys/uuid.h>\n"
  60                 printf "#include <sys/wait.h>\n"
  61                 printf "\n"
  62                 printf "#ifndef _ACL_PRIVATE\n"
  63                 printf "#define _ACL_PRIVATE\n"
  64                 printf "#endif\n"
  65                 printf "#include <sys/acl.h>\n"
  66                 printf "\n"
  67                 printf "#ifndef EBUSY\n"
  68                 printf "#define errno 0\n"
  69                 printf "#define EBUSY 0\n"
  70                 printf "#endif\n"
  71                 printf "#include <sys/umtx.h>\n"
  72                 printf "\n"
  73                 # existing compat shims
  74                 printf "struct ostat;\n"
  75                 printf "struct nstat;\n"
  76                 printf "struct ostatfs;\n"
  77                 printf "struct osigaction;\n"
  78                 printf "struct osigcontext;\n"
  79                 printf "struct oaiocb;\n"
  80                 printf "union semun_old;\n"
  81                 printf "typedef unsigned int osigset_t;\n"
  82                 printf "struct msqid_ds_old;\n"
  83                 printf "struct shmid_ds_old;\n"
  84                 # TODO
  85                 printf "struct ucontext4;\n"
  86                 printf "struct sctp_sndrcvinfo;\n"
  87                 printf "\n"
  88         }
  89         NF < 4 || $1 !~ /^[0-9]+$/ {
  90                 next
  91         }
  92         $3 ~ "UNIMPL" || $3 ~ "OBSOL" || $3 ~ "NODEF" || $3 ~ "NOPROTO" ||
  93         $3 ~ "NOSTD"{
  94                 next
  95         }
  96         $4 == "{" {
  97                 if ($3 ~ /COMPAT[0-9]*/) {
  98                         n = split($3, flags, /\|/)
  99                         for (i = 1; i <= n; i++) {
 100                                 if (flags[i] == "COMPAT") {
 101                                         $6 = "o" $6
 102                                 } else if (flags[i] ~ /COMPAT[0-9]+/) {
 103                                         sub(/COMPAT/, "freebsd", flags[i])
 104                                         $6 = flags[i] "_" $6
 105                                 }
 106                         }
 107                 }
 108                 $6 = "__sysfake_" $6
 109                 r = ""
 110                 if ($5 != "void")
 111                         r = "0"
 112                 def = ""
 113                 impl = ""
 114                 for ( i = 5; i <= NF; i++) {
 115                         if ($i == ";")
 116                                 break;
 117                         if ($i == "," || $i == ")")
 118                                 impl = impl " __unused"
 119                         impl = impl " " $i
 120                         def = def " " $i
 121                 }
 122                 printf "%s;\n", def
 123                 printf "%s\n{ return %s; }\n", impl, r
 124                 next
 125         }
 126         {
 127                 printf "invalid line: "
 128                 print
 129         }
 130 '