e7c1c309fa
In particular, don't generate an include of "opt_compat.h" if it wouldn't affect anything we create. This will fix recent breakage of the ibcs2 LKM. The ibcs2 syscall files were not regenerated properly, so the LKM didn't break immediately when we started generating this extraneous include.
394 lines
9.9 KiB
Bash
394 lines
9.9 KiB
Bash
#! /bin/sh -
|
|
# @(#)makesyscalls.sh 8.1 (Berkeley) 6/10/93
|
|
# $Id: makesyscalls.sh,v 1.33 1998/06/08 11:02:00 bde Exp $
|
|
|
|
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 = \"$1\"
|
|
"'
|
|
|
|
printf "/*\n * System call switch table.\n *\n" > syssw
|
|
printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
|
|
|
|
printf "/*\n * System call prototypes.\n *\n" > sysarg
|
|
printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
|
|
|
|
printf "\n#ifdef %s\n\n", compat > syscompat
|
|
|
|
printf "/*\n * System call names.\n *\n" > sysnames
|
|
printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
|
|
|
|
printf "/*\n * System call numbers.\n *\n" > syshdr
|
|
printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
|
|
printf "# FreeBSD system call names.\n" > sysmk
|
|
printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
|
|
printf "/*\n * System call hiders.\n *\n" > syshide
|
|
printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshide
|
|
}
|
|
NR == 1 {
|
|
gsub("[$]Id: ", "", $0)
|
|
gsub(" [$]", "", $0)
|
|
|
|
printf " * created from%s\n */\n\n", $0 > 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 "struct proc;\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 " * 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 != $1 {
|
|
printf "%s: line %d: syscall number out of sync at %d\n",
|
|
infile, NR, syscall
|
|
printf "line is:\n"
|
|
print
|
|
exit 1
|
|
}
|
|
function parserr(was, wanted) {
|
|
printf "%s: line %d: unexpected %s (expected %s)\n",
|
|
infile, NR, was, wanted
|
|
exit 1
|
|
}
|
|
function parseline() {
|
|
f=4 # toss number and type
|
|
argc= 0;
|
|
bigargc = 0;
|
|
if ($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" \
|
|
|| $2 == "NOIMPL" {
|
|
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\t%s;\tchar %s_[PAD_(%s)];\n",
|
|
argtype[i], argname[i],
|
|
argname[i], argtype[i]) > sysarg
|
|
printf("};\n") > sysarg
|
|
}
|
|
else if($2 != "NOARGS" && $2 != "NOPROTO")
|
|
printf("struct\t%s {\n\tregister_t dummy;\n};\n",
|
|
argalias) > sysarg
|
|
}
|
|
if ($2 != "NOPROTO" && (!nosys || funcname != "nosys") && \
|
|
(!lkmnosys || funcname != "lkmnosys")) {
|
|
printf("%s\t%s __P((struct proc *, struct %s *))",
|
|
rettype, funcname, argalias) > sysdcl
|
|
if (funcname == "exit")
|
|
printf(" __dead2") > sysdcl
|
|
printf(";\n") > sysdcl
|
|
}
|
|
if (funcname == "nosys")
|
|
nosys = 1
|
|
if (funcname == "lkmnosys")
|
|
lkmnosys = 1
|
|
if ($2 != "NOIMPL") {
|
|
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
|
|
} else {
|
|
printf("\t{ %d, (sy_call_t *)%s },\t\t",
|
|
argc+bigargc, "nosys") > sysent
|
|
if(length("nosys") < 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
|
|
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\t%s {\n", argalias) > syscompat
|
|
for (i = 1; i <= argc; i++)
|
|
printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n",
|
|
argtype[i], argname[i],
|
|
argname[i], argtype[i]) > syscompat
|
|
printf("};\n") > syscompat
|
|
}
|
|
else if($2 != "CPT_NOA")
|
|
printf("struct\t%s {\n\tregister_t dummy;\n};\n",
|
|
argalias) > sysarg
|
|
printf("%s\to%s __P((struct proc *, struct %s *));\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" {
|
|
ncompat++
|
|
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
|
|
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 },\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 {
|
|
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("\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
|