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freebsd/sys/kern/makesyscalls.sh
Julian Elischer b40ce4165d KSE Milestone 2 
Note ALL MODULES MUST BE RECOMPILED
make the kernel aware that there are smaller units of scheduling than the
process. (but only allow one thread per process at this time).
This is functionally equivalent to teh previousl -current except
that there is a thread associated with each process.

Sorry john! (your next MFC will be a doosie!)

Reviewed by: peter@freebsd.org, dillon@freebsd.org

X-MFC after:    ha ha ha ha
2001-09-12 08:38:13 +00:00

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#! /bin/sh -
# @(#)makesyscalls.sh 8.1 (Berkeley) 6/10/93
# $FreeBSD$
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"
sysmk="../sys/syscall.mk"
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
touch $sysdcl $syscompat $syscompatdcl $sysent $sysinc $sysarg
case $# in
0) echo "Usage: $0 input-file <config-file>" 1>&2
exit 1
;;
esac
if [ -n "$2" -a -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 = \"$sysent\"
syssw = \"$syssw\"
sysinc = \"$sysinc\"
sysarg = \"$sysarg\"
sysnames = \"$sysnames\"
syshdr = \"$syshdr\"
sysmk = \"$sysmk\"
compat = \"$compat\"
syshide = \"$syshide\"
syscallprefix = \"$syscallprefix\"
switchname = \"$switchname\"
namesname = \"$namesname\"
infile = \"$1\"
"'
printf "/*\n * System call switch table.\n *\n" > syssw
printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
printf " * \$\FreeBSD\$\n" > syssw
printf "/*\n * System call prototypes.\n *\n" > sysarg
printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
printf " * \$\FreeBSD\$\n" > sysarg
printf "\n#ifdef %s\n\n", compat > syscompat
printf "/*\n * System call names.\n *\n" > sysnames
printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
printf " * \$\FreeBSD\$\n" > sysnames
printf "/*\n * System call numbers.\n *\n" > syshdr
printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
printf " * \$\FreeBSD\$\n" > syshdr
printf "# FreeBSD system call names.\n" > sysmk
printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
printf "# \$\FreeBSD\$\n" > sysmk
printf "/*\n * System call hiders.\n *\n" > syshide
printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshide
printf " * \$\FreeBSD\$\n" > syshide
}
NR == 1 {
gsub("[$]FreeBSD: ", "", $0)
gsub(" [$]", "", $0)
printf " * created from%s\n */\n\n", $0 > syssw
printf "\n/* 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" > sysarg
printf "#include <sys/acl.h>\n\n" > sysarg
printf "struct proc;\n\n" > sysarg
printf "struct thread;\n\n" > sysarg
printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
printf "#define\tPADL_(t)\t0\n" > sysarg
printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
printf "#else\n" > sysarg
printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
printf "#define\tPADR_(t)\t0\n" > sysarg
printf "#endif\n\n" > 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\nMIASM = ", $0 > sysmk
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 != $1 {
printf "%s: line %d: syscall number out of sync at %d\n",
infile, NR, syscall
printf "line is:\n"
print
exit 1
}
function align_sysent_comment(column) {
printf("\t") > sysent
column = column + 8 - column % 8
while (column < 56) {
printf("\t") > sysent
column = column + 8
}
}
function parserr(was, wanted) {
printf "%s: line %d: unexpected %s (expected %s)\n",
infile, NR, was, wanted
exit 1
}
function parseline() {
f=4 # toss number and type
argc= 0;
argssize = "0"
if ($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")
argname[argc]=$f;
f += 2; # skip name, and any comma
}
if (argc != 0)
argssize = "AS(" argalias ")"
}
{ comment = $4
if (NF < 7)
for (i = 5; i <= NF; i++)
comment = comment " " $i
}
# The 'M' type prefix
#
{
mpsafe = "SYF_MPSAFE | ";
if ($2 == "MSTD") {
$2 = "STD";
} else if ($2 == "MNODEF") {
$2 = "NODEF";
} else if ($2 == "MNOARGS") {
$2 = "NOARGS";
} else if ($2 == "MNOPROTO") {
$2 = "NOPROTO";
} else if ($2 == "MNOIMPL") {
$2 = "NOIMPL";
} else if ($2 == "MNOSTD") {
$2 = "NOSTD";
} else if ($2 == "MCOMPAT") {
$2 = "COMPAT";
} else if ($2 == "MCPT_NOA") {
$2 = "CPT_NOA";
} else if ($2 == "MLIBCOMPAT") {
$2 = "LIBCOMPAT";
} else if ($2 == "MOBSOL") {
$2 = "OBSOL";
} else if ($2 == "MUNIMPL") {
$2 = "UNIMPL";
} else {
mpsafe = "";
}
}
$2 == "STD" || $2 == "NODEF" || $2 == "NOARGS" || $2 == "NOPROTO" \
|| $2 == "NOIMPL" || $2 == "NOSTD" {
parseline()
if ((!nosys || funcname != "nosys") && \
(funcname != "lkmnosys") && (funcname != "lkmressys")) {
if (argc != 0 && $2 != "NOARGS" && $2 != "NOPROTO") {
printf("struct %s {\n", argalias) > sysarg
for (i = 1; i <= argc; i++)
printf("\tchar %s_l_[PADL_(%s)]; " \
"%s %s; char %s_r_[PADR_(%s)];\n",
argname[i], argtype[i],
argtype[i], argname[i],
argname[i], argtype[i]) > sysarg
printf("};\n") > sysarg
}
else if($2 != "NOARGS" && $2 != "NOPROTO")
printf("struct %s {\n\tregister_t dummy;\n};\n",
argalias) > sysarg
}
if ($2 != "NOPROTO" && (!nosys || funcname != "nosys") && \
(!lkmnosys || funcname != "lkmnosys")) {
printf("%s\t%s __P((struct thread *, struct %s *))",
rettype, funcname, argalias) > sysdcl
printf(";\n") > sysdcl
}
if (funcname == "nosys")
nosys = 1
if (funcname == "lkmnosys")
lkmnosys = 1
printf("\t{ %s%s, (sy_call_t *)", mpsafe, argssize) > sysent
column = 8 + 2 + length(mpsafe) + length(argssize) + 15
if ($2 == "NOIMPL") {
printf("%s },", "nosys") > sysent
column = column + length("nosys") + 3
} else if ($2 == "NOSTD") {
printf("%s },", "lkmressys") > sysent
column = column + length("lkmnosys") + 3
} else {
printf("%s },", funcname) > sysent
column = column + length(funcname) + 3
}
align_sysent_comment(column)
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
printf(" \\\n\t%s.o", funcalias) > sysmk
}
if ($3 != "NOHIDE")
printf("HIDE_%s(%s)\n", $3, funcname) > syshide
syscall++
next
}
$2 == "COMPAT" || $2 == "CPT_NOA" {
ncompat++
parseline()
if (argc != 0 && $2 != "CPT_NOA") {
printf("struct %s {\n", argalias) > syscompat
for (i = 1; i <= argc; i++)
printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
"char %s_r_[PADR_(%s)];\n",
argname[i], argtype[i],
argtype[i], argname[i],
argname[i], argtype[i]) > syscompat
printf("};\n") > syscompat
}
else if($2 != "CPT_NOA")
printf("struct %s {\n\tregister_t dummy;\n};\n",
argalias) > sysarg
printf("%s\to%s __P((struct thread *, struct %s *));\n",
rettype, funcname, argalias) > syscompatdcl
printf("\t{ compat(%s%s,%s) },",
mpsafe, argssize, funcname) > sysent
align_sysent_comment(8 + 9 + length(mpsafe) + \
length(argssize) + 1 + length(funcname) + 4)
printf("/* %d = old %s */\n", 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" {
ncompat++
parseline()
printf("%s\to%s();\n", rettype, funcname) > syscompatdcl
printf("\t{ compat(%s%s,%s) },",
mpsafe, argssize, funcname) > sysent
align_sysent_comment(8 + 9 + length(mpsafe) + \
length(argssize) + 1 + length(funcname) + 4)
printf("/* %d = old %s */\n", 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
printf(" \\\n\t%s.o", funcalias) > sysmk
if ($3 != "NOHIDE")
printf("HIDE_%s(%s)\n", $3, funcname) > syshide
syscall++
next
}
$2 == "OBSOL" {
printf("\t{ 0, (sy_call_t *)nosys },") > sysent
align_sysent_comment(34)
printf("/* %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#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
if (ncompat != 0) {
printf "#include \"opt_compat.h\"\n\n" > syssw
printf "\n#ifdef %s\n", compat > sysinc
printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
printf "#else\n" > sysinc
printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
printf "#endif\n" > sysinc
}
printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
printf("#undef PAD_\n") > syscompatdcl
printf("#undef PADL_\n") > syscompatdcl
printf("#undef PADR_\n") > syscompatdcl
printf("\n#endif /* !%s */\n", sysproto_h) > syscompatdcl
printf("\n") > sysmk
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
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