361 lines
8.8 KiB
Bash
361 lines
8.8 KiB
Bash
#! /bin/sh -
|
|
# @(#)makesyscalls.sh 8.1 (Berkeley) 6/10/93
|
|
# $Id$
|
|
|
|
set -e
|
|
|
|
# name of compat option:
|
|
compat=COMPAT_43
|
|
|
|
# output files:
|
|
sysnames="syscalls.c"
|
|
sysproto="../sys/sysproto.h"
|
|
sysproto_h=_SYS_SYSPROTO_H_
|
|
syshdr="../sys/syscall.h"
|
|
syssw="init_sysent.c"
|
|
syshide="../sys/syscall-hide.h"
|
|
syscallprefix="SYS_"
|
|
switchname="sysent"
|
|
namesname="syscallnames"
|
|
|
|
# tmp files:
|
|
sysdcl="sysent.dcl"
|
|
syscompat="sysent.compat"
|
|
syscompatdcl="sysent.compatdcl"
|
|
sysent="sysent.switch"
|
|
sysinc="sysinc.switch"
|
|
sysarg="sysarg.switch"
|
|
|
|
trap "rm $sysdcl $syscompat $syscompatdcl $sysent $sysinc $sysarg" 0
|
|
|
|
case $# in
|
|
0) echo "Usage: $0 input-file <config-file>" 1>&2
|
|
exit 1
|
|
;;
|
|
esac
|
|
|
|
if [ -f $2 ]; then
|
|
. $2
|
|
fi
|
|
|
|
sed -e '
|
|
s/\$//g
|
|
:join
|
|
/\\$/{a\
|
|
|
|
N
|
|
s/\\\n//
|
|
b join
|
|
}
|
|
2,${
|
|
/^#/!s/\([{}()*,]\)/ \1 /g
|
|
}
|
|
' < $1 | awk "
|
|
BEGIN {
|
|
sysdcl = \"$sysdcl\"
|
|
sysproto = \"$sysproto\"
|
|
sysproto_h = \"$sysproto_h\"
|
|
syscompat = \"$syscompat\"
|
|
syscompatdcl = \"$syscompatdcl\"
|
|
sysent = \"$sysent\"
|
|
sysinc = \"$sysinc\"
|
|
sysarg = \"$sysarg\"
|
|
sysnames = \"$sysnames\"
|
|
syshdr = \"$syshdr\"
|
|
compat = \"$compat\"
|
|
syshide = \"$syshide\"
|
|
syscallprefix = \"$syscallprefix\"
|
|
switchname = \"$switchname\"
|
|
namesname = \"$namesname\"
|
|
infile = \"$1\"
|
|
"'
|
|
|
|
printf "/*\n * System call switch table.\n *\n" > sysinc
|
|
printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysinc
|
|
|
|
printf "/*\n * System call prototypes.\n *\n" > sysarg
|
|
printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
|
|
|
|
printf "\n#ifdef %s\n\n", compat > syscompat
|
|
|
|
printf "/*\n * System call names.\n *\n" > sysnames
|
|
printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
|
|
|
|
printf "/*\n * System call numbers.\n *\n" > syshdr
|
|
printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
|
|
printf "/*\n * System call hiders.\n *\n" > syshide
|
|
printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshide
|
|
}
|
|
NR == 1 {
|
|
gsub("[$]Id: ", "", $0)
|
|
gsub(" [$]", "", $0)
|
|
|
|
printf " * created from%s\n */\n\n", $0 > sysinc
|
|
|
|
printf "\n#ifdef %s\n", compat > sysent
|
|
printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysent
|
|
printf("#else\n") > sysent
|
|
printf("#define compat(n, name) 0, (sy_call_t *)nosys\n") > sysent
|
|
printf("#endif\n\n") > sysent
|
|
printf("/* The casts are bogus but will do for now. */\n") > sysent
|
|
printf "struct sysent %s[] = {\n",switchname > sysent
|
|
|
|
printf " * created from%s\n */\n\n", $0 > sysarg
|
|
printf("#ifndef %s\n", sysproto_h) > sysarg
|
|
printf("#define\t%s\n\n", sysproto_h) > sysarg
|
|
printf "#include <sys/signal.h>\n\n", $0 > sysarg
|
|
|
|
printf " * created from%s\n */\n\n", $0 > sysnames
|
|
printf "char *%s[] = {\n", namesname > sysnames
|
|
|
|
printf " * created from%s\n */\n\n", $0 > syshdr
|
|
|
|
printf " * created from%s\n */\n\n", $0 > syshide
|
|
next
|
|
}
|
|
NF == 0 || $1 ~ /^;/ {
|
|
next
|
|
}
|
|
$1 ~ /^#[ ]*include/ {
|
|
print > sysinc
|
|
next
|
|
}
|
|
$1 ~ /^#[ ]*if/ {
|
|
print > sysent
|
|
print > sysdcl
|
|
print > sysarg
|
|
print > syscompat
|
|
print > sysnames
|
|
print > syshide
|
|
savesyscall = syscall
|
|
next
|
|
}
|
|
$1 ~ /^#[ ]*else/ {
|
|
print > sysent
|
|
print > sysdcl
|
|
print > sysarg
|
|
print > syscompat
|
|
print > sysnames
|
|
print > syshide
|
|
syscall = savesyscall
|
|
next
|
|
}
|
|
$1 ~ /^#/ {
|
|
print > sysent
|
|
print > sysdcl
|
|
print > sysarg
|
|
print > syscompat
|
|
print > sysnames
|
|
print > syshide
|
|
next
|
|
}
|
|
syscall != $1 {
|
|
printf "%s: line %d: syscall number out of sync at %d\n", \
|
|
infile, NR, syscall
|
|
printf "line is:\n"
|
|
print
|
|
exit 1
|
|
}
|
|
function parserr(was, wanted) {
|
|
printf "%s: line %d: unexpected %s (expected %s)\n", \
|
|
infile, NR, was, wanted
|
|
exit 1
|
|
}
|
|
function parseline() {
|
|
f=4 # toss number and type
|
|
argc= 0;
|
|
bigargc = 0;
|
|
if ($NF != "}") {
|
|
funcalias=$(NF-2)
|
|
argalias=$(NF-1)
|
|
rettype=$NF
|
|
end=NF-3
|
|
} else {
|
|
funcalias=""
|
|
argalias=""
|
|
rettype="int"
|
|
end=NF
|
|
}
|
|
if ($2 == "NODEF") {
|
|
funcname=$4
|
|
return
|
|
}
|
|
if ($f != "{")
|
|
parserr($f, "{")
|
|
f++
|
|
if ($end != "}")
|
|
parserr($end, "}")
|
|
end--
|
|
if ($end != ";")
|
|
parserr($end, ";")
|
|
end--
|
|
if ($end != ")")
|
|
parserr($end, ")")
|
|
end--
|
|
|
|
f++ #function return type
|
|
|
|
funcname=$f
|
|
if (funcalias == "")
|
|
funcalias = funcname
|
|
if (argalias == "") {
|
|
argalias = funcname "_args"
|
|
if ($2 == "COMPAT")
|
|
argalias = "o" argalias
|
|
}
|
|
f++
|
|
|
|
if ($f != "(")
|
|
parserr($f, ")")
|
|
f++
|
|
|
|
if (f == end) {
|
|
if ($f != "void")
|
|
parserr($f, "argument definition")
|
|
return
|
|
}
|
|
|
|
while (f <= end) {
|
|
argc++
|
|
argtype[argc]=""
|
|
oldf=""
|
|
while (f < end && $(f+1) != ",") {
|
|
if (argtype[argc] != "" && oldf != "*")
|
|
argtype[argc] = argtype[argc]" ";
|
|
argtype[argc] = argtype[argc]$f;
|
|
oldf = $f;
|
|
f++
|
|
}
|
|
if (argtype[argc] == "")
|
|
parserr($f, "argument definition")
|
|
if (argtype[argc] == "off_t")
|
|
bigargc++
|
|
argname[argc]=$f;
|
|
f += 2; # skip name, and any comma
|
|
}
|
|
}
|
|
{ comment = $4
|
|
if (NF < 7)
|
|
for (i = 5; i <= NF; i++)
|
|
comment = comment " " $i
|
|
}
|
|
$2 == "STD" || $2 == "NODEF" || $2 == "NOARGS" || $2 == "NOPROTO" {
|
|
parseline()
|
|
if ((!nosys || funcname != "nosys") && \
|
|
(funcname != "lkmnosys")) {
|
|
if (argc != 0 && $2 != "NOARGS" && $2 != "NOPROTO") {
|
|
printf("struct\t%s {\n", argalias) > sysarg
|
|
for (i = 1; i <= argc; i++)
|
|
printf("\t%s %s;\n", argtype[i],
|
|
argname[i]) > sysarg
|
|
printf("};\n") > sysarg
|
|
}
|
|
else if($2 != "NOARGS" && $2 != "NOPROTO")
|
|
printf("struct\t%s {\n\tint dummy;\n};\n", \
|
|
argalias) > sysarg
|
|
}
|
|
if ($2 != "NOPROTO" && (!nosys || funcname != "nosys") && \
|
|
(!lkmnosys || funcname != "lkmnosys")) {
|
|
printf("%s\t%s __P((struct proc *, struct %s *, int []))", \
|
|
rettype, funcname, argalias) > sysdcl
|
|
if (funcname == "exit")
|
|
printf(" __dead2") > sysdcl
|
|
printf(";\n") > sysdcl
|
|
}
|
|
if (funcname == "nosys")
|
|
nosys = 1
|
|
if (funcname == "lkmnosys")
|
|
lkmnosys = 1
|
|
printf("\t{ %d, (sy_call_t *)%s },\t\t", \
|
|
argc+bigargc, funcname) > sysent
|
|
if(length(funcname) < 11)
|
|
printf("\t") > sysent
|
|
printf("/* %d = %s */\n", syscall, funcalias) > sysent
|
|
printf("\t\"%s\",\t\t\t/* %d = %s */\n", \
|
|
funcalias, syscall, funcalias) > sysnames
|
|
if ($2 != "NODEF")
|
|
printf("#define\t%s%s\t%d\n", syscallprefix, \
|
|
funcalias, syscall) > syshdr
|
|
if ($3 != "NOHIDE")
|
|
printf("HIDE_%s(%s)\n", $3, funcname) > syshide
|
|
syscall++
|
|
next
|
|
}
|
|
$2 == "COMPAT" || $2 == "CPT_NOA" {
|
|
parseline()
|
|
if (argc != 0 && $2 != "CPT_NOA") {
|
|
printf("struct\t%s {\n", argalias) > syscompat
|
|
for (i = 1; i <= argc; i++)
|
|
printf("\t%s %s;\n", argtype[i],
|
|
argname[i]) > syscompat
|
|
printf("};\n") > syscompat
|
|
}
|
|
else if($2 != "CPT_NOA")
|
|
printf("struct\t%s {\n\tint dummy;\n};\n", \
|
|
argalias) > sysarg
|
|
printf("%s\to%s __P((struct proc *, struct %s *, int []));\n", \
|
|
rettype, funcname, argalias) > syscompatdcl
|
|
printf("\t{ compat(%d,%s) },\t\t/* %d = old %s */\n", \
|
|
argc+bigargc, funcname, syscall, funcalias) > sysent
|
|
printf("\t\"old.%s\",\t\t/* %d = old %s */\n", \
|
|
funcalias, syscall, funcalias) > sysnames
|
|
printf("\t\t\t\t/* %d is old %s */\n", \
|
|
syscall, funcalias) > syshdr
|
|
if ($3 != "NOHIDE")
|
|
printf("HIDE_%s(%s)\n", $3, funcname) > syshide
|
|
syscall++
|
|
next
|
|
}
|
|
$2 == "LIBCOMPAT" {
|
|
parseline()
|
|
printf("%s\to%s();\n", rettype, funcname) > syscompatdcl
|
|
printf("\t{ compat(%d,%s) },\t\t/* %d = old %s */\n", \
|
|
argc+bigargc, funcname, syscall, funcalias) > sysent
|
|
printf("\t\"old.%s\",\t\t/* %d = old %s */\n", \
|
|
funcalias, syscall, funcalias) > sysnames
|
|
printf("#define\t%s%s\t%d\t/* compatibility; still used by libc */\n", \
|
|
syscallprefix, funcalias, syscall) > syshdr
|
|
if ($3 != "NOHIDE")
|
|
printf("HIDE_%s(%s)\n", $3, funcname) > syshide
|
|
syscall++
|
|
next
|
|
}
|
|
$2 == "OBSOL" {
|
|
printf("\t{ 0, (sy_call_t *)nosys },\t\t\t/* %d = obsolete %s */\n", \
|
|
syscall, comment) > sysent
|
|
printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n", \
|
|
$4, syscall, comment) > sysnames
|
|
printf("\t\t\t\t/* %d is obsolete %s */\n", \
|
|
syscall, comment) > syshdr
|
|
if ($3 != "NOHIDE")
|
|
printf("HIDE_%s(%s)\n", $3, $4) > syshide
|
|
syscall++
|
|
next
|
|
}
|
|
$2 == "UNIMPL" {
|
|
printf("\t{ 0, (sy_call_t *)nosys },\t\t\t/* %d = %s */\n", \
|
|
syscall, comment) > sysent
|
|
printf("\t\"#%d\",\t\t\t/* %d = %s */\n", \
|
|
syscall, syscall, comment) > sysnames
|
|
if ($3 != "NOHIDE")
|
|
printf("HIDE_%s(%s)\n", $3, $4) > syshide
|
|
syscall++
|
|
next
|
|
}
|
|
{
|
|
printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $2
|
|
exit 1
|
|
}
|
|
END {
|
|
printf("\n#endif /* %s */\n", compat) > syscompatdcl
|
|
printf("\n#endif /* !%s */\n", sysproto_h) > syscompatdcl
|
|
|
|
printf("};\n") > sysent
|
|
printf("};\n") > sysnames
|
|
printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
|
|
> syshdr
|
|
} '
|
|
|
|
cat $sysinc $sysent >$syssw
|
|
cat $sysarg $sysdcl $syscompat $syscompatdcl > $sysproto
|