844 lines
25 KiB
Bash
844 lines
25 KiB
Bash
#! /bin/sh -
|
|
# $NetBSD: makesyscalls.sh,v 1.104 2010/12/30 11:42:53 pooka Exp $
|
|
#
|
|
# Copyright (c) 1994, 1996, 2000 Christopher G. Demetriou
|
|
# All rights reserved.
|
|
#
|
|
# Redistribution and use in source and binary forms, with or without
|
|
# modification, are permitted provided that the following conditions
|
|
# are met:
|
|
# 1. Redistributions of source code must retain the above copyright
|
|
# notice, this list of conditions and the following disclaimer.
|
|
# 2. Redistributions in binary form must reproduce the above copyright
|
|
# notice, this list of conditions and the following disclaimer in the
|
|
# documentation and/or other materials provided with the distribution.
|
|
# 3. All advertising materials mentioning features or use of this software
|
|
# must display the following acknowledgement:
|
|
# This product includes software developed for the NetBSD Project
|
|
# by Christopher G. Demetriou.
|
|
# 4. The name of the author may not be used to endorse or promote products
|
|
# derived from this software without specific prior written permission
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
# @(#)makesyscalls.sh 8.1 (Berkeley) 6/10/93
|
|
|
|
set -e
|
|
|
|
case $# in
|
|
2) ;;
|
|
*) echo "Usage: $0 config-file input-file" 1>&2
|
|
exit 1
|
|
;;
|
|
esac
|
|
|
|
# the config file sets the following variables:
|
|
# sysalign check for alignment of off_t
|
|
# sysnames the syscall names file
|
|
# sysnumhdr the syscall numbers file
|
|
# syssw the syscall switch file
|
|
# sysarghdr the syscall argument struct definitions
|
|
# compatopts those syscall types that are for 'compat' syscalls
|
|
# switchname the name for the 'struct sysent' we define
|
|
# namesname the name for the 'const char *[]' we define
|
|
# constprefix the prefix for the system call constants
|
|
# registertype the type for register_t
|
|
# nsysent the size of the sysent table
|
|
# sys_nosys [optional] name of function called for unsupported
|
|
# syscalls, if not sys_nosys()
|
|
# maxsysargs [optiona] the maximum number or arguments
|
|
#
|
|
# NOTE THAT THIS makesyscalls.sh DOES NOT SUPPORT 'SYSLIBCOMPAT'.
|
|
|
|
# source the config file.
|
|
sys_nosys="sys_nosys" # default is sys_nosys(), if not specified otherwise
|
|
maxsysargs=8 # default limit is 8 (32bit) arguments
|
|
rumpcalls="/dev/null"
|
|
rumpcallshdr="/dev/null"
|
|
rumpsysent="rumpsysent.tmp"
|
|
. ./$1
|
|
|
|
# tmp files:
|
|
sysdcl="sysent.dcl"
|
|
sysprotos="sys.protos"
|
|
syscompat_pref="sysent."
|
|
sysent="sysent.switch"
|
|
sysnamesbottom="sysnames.bottom"
|
|
|
|
trap "rm $sysdcl $sysprotos $sysent $sysnamesbottom $rumpsysent" 0
|
|
|
|
# Awk program (must support nawk extensions)
|
|
# Use "awk" at Berkeley, "nawk" or "gawk" elsewhere.
|
|
awk=${AWK:-awk}
|
|
|
|
# Does this awk have a "toupper" function?
|
|
have_toupper=`$awk 'BEGIN { print toupper("true"); exit; }' 2>/dev/null`
|
|
|
|
# If this awk does not define "toupper" then define our own.
|
|
if [ "$have_toupper" = TRUE ] ; then
|
|
# Used awk (GNU awk or nawk) provides it
|
|
toupper=
|
|
else
|
|
# Provide our own toupper()
|
|
toupper='
|
|
function toupper(str) {
|
|
_toupper_cmd = "echo "str" |tr a-z A-Z"
|
|
_toupper_cmd | getline _toupper_str;
|
|
close(_toupper_cmd);
|
|
return _toupper_str;
|
|
}'
|
|
fi
|
|
|
|
# before handing it off to awk, make a few adjustments:
|
|
# (1) insert spaces around {, }, (, ), *, and commas.
|
|
# (2) get rid of any and all dollar signs (so that rcs id use safe)
|
|
#
|
|
# The awk script will deal with blank lines and lines that
|
|
# start with the comment character (';').
|
|
|
|
sed -e '
|
|
s/\$//g
|
|
:join
|
|
/\\$/{a\
|
|
|
|
N
|
|
s/\\\n//
|
|
b join
|
|
}
|
|
2,${
|
|
/^#/!s/\([{}()*,|]\)/ \1 /g
|
|
}
|
|
' < $2 | $awk "
|
|
$toupper
|
|
BEGIN {
|
|
# Create a NetBSD tag that does not get expanded when checking
|
|
# this script out of CVS. (This part of the awk script is in a
|
|
# shell double-quoted string, so the backslashes are eaten by
|
|
# the shell.)
|
|
tag = \"\$\" \"NetBSD\" \"\$\"
|
|
|
|
# to allow nested #if/#else/#endif sets
|
|
savedepth = 0
|
|
# to track already processed syscalls
|
|
|
|
sysnames = \"$sysnames\"
|
|
sysprotos = \"$sysprotos\"
|
|
sysnumhdr = \"$sysnumhdr\"
|
|
sysarghdr = \"$sysarghdr\"
|
|
sysarghdrextra = \"$sysarghdrextra\"
|
|
rumpcalls = \"$rumpcalls\"
|
|
rumpcallshdr = \"$rumpcallshdr\"
|
|
rumpsysent = \"$rumpsysent\"
|
|
switchname = \"$switchname\"
|
|
namesname = \"$namesname\"
|
|
constprefix = \"$constprefix\"
|
|
registertype = \"$registertype\"
|
|
sysalign=\"$sysalign\"
|
|
if (!registertype) {
|
|
registertype = \"register_t\"
|
|
}
|
|
nsysent = \"$nsysent\"
|
|
|
|
sysdcl = \"$sysdcl\"
|
|
syscompat_pref = \"$syscompat_pref\"
|
|
sysent = \"$sysent\"
|
|
sysnamesbottom = \"$sysnamesbottom\"
|
|
sys_nosys = \"$sys_nosys\"
|
|
maxsysargs = \"$maxsysargs\"
|
|
infile = \"$2\"
|
|
|
|
compatopts = \"$compatopts\"
|
|
"'
|
|
|
|
printf "/* %s */\n\n", tag > sysdcl
|
|
printf "/*\n * System call switch table.\n *\n" > sysdcl
|
|
printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysdcl
|
|
|
|
ncompat = split(compatopts,compat)
|
|
for (i = 1; i <= ncompat; i++) {
|
|
compat_upper[i] = toupper(compat[i])
|
|
|
|
printf "\n#ifdef %s\n", compat_upper[i] > sysent
|
|
printf "#define %s(func) __CONCAT(%s_,func)\n", compat[i], \
|
|
compat[i] > sysent
|
|
printf "#else\n" > sysent
|
|
printf "#define %s(func) %s\n", compat[i], sys_nosys > sysent
|
|
printf "#endif\n" > sysent
|
|
}
|
|
|
|
printf "\n#define\ts(type)\tsizeof(type)\n" > sysent
|
|
printf "#define\tn(type)\t(sizeof(type)/sizeof (%s))\n", registertype > sysent
|
|
printf "#define\tns(type)\tn(type), s(type)\n\n", registertype > sysent
|
|
printf "struct sysent %s[] = {\n",switchname > sysent
|
|
|
|
printf "/* %s */\n\n", tag > sysnames
|
|
printf "/*\n * System call names.\n *\n" > sysnames
|
|
printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
|
|
|
|
printf "\n/*\n * System call prototypes.\n */\n\n" > sysprotos
|
|
|
|
printf "/* %s */\n\n", tag > sysnumhdr
|
|
printf "/*\n * System call numbers.\n *\n" > sysnumhdr
|
|
printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnumhdr
|
|
|
|
printf "/* %s */\n\n", tag > sysarghdr
|
|
printf "/*\n * System call argument lists.\n *\n" > sysarghdr
|
|
printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarghdr
|
|
|
|
printf "/* %s */\n\n", tag > rumpcalls
|
|
printf "/*\n * System call vector and marshalling for rump.\n *\n" > rumpcalls
|
|
printf " * DO NOT EDIT-- this file is automatically generated.\n" > rumpcalls
|
|
|
|
printf "/* %s */\n\n", tag > rumpcallshdr
|
|
printf "/*\n * System call protos in rump namespace.\n *\n" > rumpcallshdr
|
|
printf " * DO NOT EDIT-- this file is automatically generated.\n" > rumpcallshdr
|
|
}
|
|
NR == 1 {
|
|
sub(/ $/, "")
|
|
printf " * created from%s\n */\n\n", $0 > sysdcl
|
|
printf "#include <sys/cdefs.h>\n__KERNEL_RCSID(0, \"%s\");\n\n", tag > sysdcl
|
|
|
|
printf " * created from%s\n */\n\n", $0 > sysnames
|
|
printf "#include <sys/cdefs.h>\n__KERNEL_RCSID(0, \"%s\");\n\n", tag > sysnames
|
|
|
|
printf " * created from%s\n */\n\n", $0 > rumpcalls
|
|
printf "#include <sys/cdefs.h>\n__KERNEL_RCSID(0, \"%s\");\n\n", tag > rumpcalls
|
|
|
|
printf "#include <sys/param.h>\n" > rumpcalls
|
|
printf "#include <sys/fstypes.h>\n" > rumpcalls
|
|
printf "#include <sys/proc.h>\n" > rumpcalls
|
|
printf "#include <sys/syscall.h>\n" > rumpcalls
|
|
printf "#include <sys/syscallargs.h>\n\n" > rumpcalls
|
|
printf "#ifdef RUMP_CLIENT\n" > rumpcalls
|
|
printf "#include <errno.h>\n" > rumpcalls
|
|
printf "#include <rump/rumpclient.h>\n\n" > rumpcalls
|
|
printf "#define rsys_syscall(num, data, dlen, retval)\t\\\n" > rumpcalls
|
|
printf " rumpclient_syscall(num, data, dlen, retval)\n" > rumpcalls
|
|
printf "#define rsys_seterrno(error) errno = error\n" > rumpcalls
|
|
printf "#define rsys_alias(a,b)\n#else\n" > rumpcalls
|
|
printf "#include <sys/syscallvar.h>\n\n" > rumpcalls
|
|
printf "#include <rump/rumpuser.h>\n" > rumpcalls
|
|
printf "#include \"rump_private.h\"\n\n" > rumpcalls
|
|
printf "static int\nrsys_syscall" > rumpcalls
|
|
printf "(int num, void *data, size_t dlen, register_t *retval)" > rumpcalls
|
|
printf "\n{\n\tstruct sysent *callp = rump_sysent + num;\n" > rumpcalls
|
|
printf "\tint rv;\n" > rumpcalls
|
|
printf "\n\tKASSERT(num > 0 && num < SYS_NSYSENT);\n\n" > rumpcalls
|
|
printf "\trump_schedule();\n" > rumpcalls
|
|
printf "\trv = sy_call(callp, curlwp, data, retval);\n" > rumpcalls
|
|
printf "\trump_unschedule();\n\n\treturn rv;\n}\n\n" > rumpcalls
|
|
printf "#define rsys_seterrno(error) rumpuser_seterrno(error)\n" > rumpcalls
|
|
printf "#define rsys_alias(a,b) __weak_alias(a,b);\n#endif\n\n" > rumpcalls
|
|
|
|
printf "#if\tBYTE_ORDER == BIG_ENDIAN\n" > rumpcalls
|
|
printf "#define SPARG(p,k)\t((p)->k.be.datum)\n" > rumpcalls
|
|
printf "#else /* LITTLE_ENDIAN, I hope dearly */\n" > rumpcalls
|
|
printf "#define SPARG(p,k)\t((p)->k.le.datum)\n" > rumpcalls
|
|
printf "#endif\n\n" > rumpcalls
|
|
printf "#ifndef RUMP_CLIENT\n" > rumpcalls
|
|
printf "int rump_enosys(void);\n" > rumpcalls
|
|
printf "int\nrump_enosys()\n{\n\n\treturn ENOSYS;\n}\n" > rumpcalls
|
|
printf "#endif\n" > rumpcalls
|
|
|
|
printf "\n#ifndef RUMP_CLIENT\n" > rumpsysent
|
|
printf "#define\ts(type)\tsizeof(type)\n" > rumpsysent
|
|
printf "#define\tn(type)\t(sizeof(type)/sizeof (%s))\n", registertype > rumpsysent
|
|
printf "#define\tns(type)\tn(type), s(type)\n\n", registertype > rumpsysent
|
|
printf "struct sysent rump_sysent[] = {\n" > rumpsysent
|
|
|
|
# System call names are included by userland (kdump(1)), so
|
|
# hide the include files from it.
|
|
printf "#if defined(_KERNEL_OPT)\n" > sysnames
|
|
|
|
printf "#endif /* _KERNEL_OPT */\n\n" > sysnamesbottom
|
|
printf "const char *const %s[] = {\n",namesname > sysnamesbottom
|
|
|
|
printf " * created from%s\n */\n\n", $0 > sysnumhdr
|
|
printf "#ifndef _" constprefix "SYSCALL_H_\n" > sysnumhdr
|
|
printf "#define _" constprefix "SYSCALL_H_\n\n" > sysnumhdr
|
|
|
|
printf " * created from%s\n */\n\n", $0 > sysarghdr
|
|
printf "#ifndef _" constprefix "SYSCALLARGS_H_\n" > sysarghdr
|
|
printf "#define _" constprefix "SYSCALLARGS_H_\n\n" > sysarghdr
|
|
|
|
printf " * created from%s\n */\n\n", $0 > rumpcallshdr
|
|
printf "#ifndef _RUMP_RUMP_SYSCALLS_H_\n" > rumpcallshdr
|
|
printf "#define _RUMP_RUMP_SYSCALLS_H_\n\n" > rumpcallshdr
|
|
printf "#ifdef _KERNEL\n" > rumpcallshdr
|
|
printf "#error Interface not supported inside kernel\n" > rumpcallshdr
|
|
printf "#endif /* _KERNEL */\n\n" > rumpcallshdr
|
|
printf "#include <sys/types.h>\n" > rumpcallshdr
|
|
printf "#include <sys/select.h>\n\n" > rumpcallshdr
|
|
printf "#include <signal.h>\n\n" > rumpcallshdr
|
|
|
|
printf "%s", sysarghdrextra > sysarghdr
|
|
# Write max number of system call arguments to both headers
|
|
printf("#define\t%sMAXSYSARGS\t%d\n\n", constprefix, maxsysargs) \
|
|
> sysnumhdr
|
|
printf("#define\t%sMAXSYSARGS\t%d\n\n", constprefix, maxsysargs) \
|
|
> sysarghdr
|
|
printf "#undef\tsyscallarg\n" > sysarghdr
|
|
printf "#define\tsyscallarg(x)\t\t\t\t\t\t\t\\\n" > sysarghdr
|
|
printf "\tunion {\t\t\t\t\t\t\t\t\\\n" > sysarghdr
|
|
printf "\t\t%s pad;\t\t\t\t\t\t\\\n", registertype > sysarghdr
|
|
printf "\t\tstruct { x datum; } le;\t\t\t\t\t\\\n" > sysarghdr
|
|
printf "\t\tstruct { /* LINTED zero array dimension */\t\t\\\n" \
|
|
> sysarghdr
|
|
printf "\t\t\tint8_t pad[ /* CONSTCOND */\t\t\t\\\n" > sysarghdr
|
|
printf "\t\t\t\t(sizeof (%s) < sizeof (x))\t\\\n", \
|
|
registertype > sysarghdr
|
|
printf "\t\t\t\t? 0\t\t\t\t\t\\\n" > sysarghdr
|
|
printf "\t\t\t\t: sizeof (%s) - sizeof (x)];\t\\\n", \
|
|
registertype > sysarghdr
|
|
printf "\t\t\tx datum;\t\t\t\t\t\\\n" > sysarghdr
|
|
printf "\t\t} be;\t\t\t\t\t\t\t\\\n" > sysarghdr
|
|
printf "\t}\n" > sysarghdr
|
|
printf("\n#undef check_syscall_args\n") >sysarghdr
|
|
printf("#define check_syscall_args(call) /*LINTED*/ \\\n" \
|
|
"\ttypedef char call##_check_args" \
|
|
"[sizeof (struct call##_args) \\\n" \
|
|
"\t\t<= %sMAXSYSARGS * sizeof (%s) ? 1 : -1];\n", \
|
|
constprefix, registertype) >sysarghdr
|
|
next
|
|
}
|
|
NF == 0 || $1 ~ /^;/ {
|
|
next
|
|
}
|
|
$0 ~ /^%%$/ {
|
|
intable = 1
|
|
next
|
|
}
|
|
$1 ~ /^#[ ]*include/ {
|
|
print > sysdcl
|
|
print > sysnames
|
|
next
|
|
}
|
|
$1 ~ /^#/ && !intable {
|
|
print > sysdcl
|
|
print > sysnames
|
|
next
|
|
}
|
|
$1 ~ /^#/ && intable {
|
|
if ($1 ~ /^#[ ]*if/) {
|
|
savedepth++
|
|
savesyscall[savedepth] = syscall
|
|
}
|
|
if ($1 ~ /^#[ ]*else/) {
|
|
if (savedepth <= 0) {
|
|
printf("%s: line %d: unbalanced #else\n", \
|
|
infile, NR)
|
|
exit 1
|
|
}
|
|
syscall = savesyscall[savedepth]
|
|
}
|
|
if ($1 ~ /^#[ ]*endif/) {
|
|
if (savedepth <= 0) {
|
|
printf("%s: line %d: unbalanced #endif\n", \
|
|
infile, NR)
|
|
exit 1
|
|
}
|
|
savedepth--
|
|
}
|
|
print > sysent
|
|
print > sysarghdr
|
|
print > sysnumhdr
|
|
print > sysprotos
|
|
print > sysnamesbottom
|
|
|
|
# XXX: technically we do not want to have conditionals in rump,
|
|
# but it is easier to just let the cpp handle them than try to
|
|
# figure out what we want here in this script
|
|
print > rumpsysent
|
|
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
|
|
printf "line is:\n"
|
|
print
|
|
exit 1
|
|
}
|
|
function parseline() {
|
|
f=3 # toss number and type
|
|
if ($2 == "INDIR")
|
|
sycall_flags="SYCALL_INDIRECT"
|
|
else
|
|
sycall_flags="0"
|
|
if ($NF != "}") {
|
|
funcalias=$NF
|
|
end=NF-1
|
|
} else {
|
|
funcalias=""
|
|
end=NF
|
|
}
|
|
if ($f == "INDIR") { # allow for "NOARG INDIR"
|
|
sycall_flags = "SYCALL_INDIRECT | " sycall_flags
|
|
f++
|
|
}
|
|
if ($f == "MODULAR") { # registered at runtime
|
|
modular = 1
|
|
f++
|
|
} else {
|
|
modular = 0;
|
|
}
|
|
if ($f == "RUMP") {
|
|
rumpable = 1
|
|
f++
|
|
} else {
|
|
rumpable = 0
|
|
}
|
|
if ($f ~ /^[a-z0-9_]*$/) { # allow syscall alias
|
|
funcalias=$f
|
|
f++
|
|
}
|
|
if ($f != "{")
|
|
parserr($f, "{")
|
|
f++
|
|
if ($end != "}")
|
|
parserr($end, "}")
|
|
end--
|
|
if ($end != ";")
|
|
parserr($end, ";")
|
|
end--
|
|
if ($end != ")")
|
|
parserr($end, ")")
|
|
end--
|
|
|
|
returntype = oldf = "";
|
|
do {
|
|
if (returntype != "" && oldf != "*")
|
|
returntype = returntype" ";
|
|
returntype = returntype$f;
|
|
oldf = $f;
|
|
f++
|
|
} while ($f != "|" && f < (end-1))
|
|
if (f == (end - 1)) {
|
|
parserr($f, "function argument definition (maybe \"|\"?)");
|
|
}
|
|
f++
|
|
|
|
fprefix=$f
|
|
f++
|
|
if ($f != "|") {
|
|
parserr($f, "function compat delimiter (maybe \"|\"?)");
|
|
}
|
|
f++
|
|
|
|
fcompat=""
|
|
if ($f != "|") {
|
|
fcompat=$f
|
|
f++
|
|
}
|
|
|
|
if ($f != "|") {
|
|
parserr($f, "function name delimiter (maybe \"|\"?)");
|
|
}
|
|
f++
|
|
fbase=$f
|
|
|
|
# pipe is special in how to returns its values.
|
|
# So just generate it manually if present.
|
|
if (rumpable == 1 && fbase == "pipe") {
|
|
rumpable = 0;
|
|
rumphaspipe = 1;
|
|
}
|
|
|
|
funcstdname=fprefix "_" fbase
|
|
if (fcompat != "") {
|
|
funcname=fprefix "___" fbase "" fcompat
|
|
wantrename=1
|
|
} else {
|
|
funcname=funcstdname
|
|
wantrename=0
|
|
}
|
|
if (returntype == "quad_t" || returntype == "off_t") {
|
|
if (sycall_flags == "0")
|
|
sycall_flags = "SYCALL_RET_64";
|
|
else
|
|
sycall_flags = "SYCALL_RET_64 | " sycall_flags;
|
|
}
|
|
|
|
if (funcalias == "") {
|
|
funcalias=funcname
|
|
sub(/^([^_]+_)*sys_/, "", funcalias)
|
|
}
|
|
f++
|
|
|
|
if ($f != "(")
|
|
parserr($f, "(")
|
|
f++
|
|
|
|
argc=0;
|
|
argalign=0;
|
|
if (f == end) {
|
|
if ($f != "void")
|
|
parserr($f, "argument definition")
|
|
isvarargs = 0;
|
|
varargc = 0;
|
|
argtype[0]="void";
|
|
return
|
|
}
|
|
|
|
# some system calls (open() and fcntl()) can accept a variable
|
|
# number of arguments. If syscalls accept a variable number of
|
|
# arguments, they must still have arguments specified for
|
|
# the remaining argument "positions," because of the way the
|
|
# kernel system call argument handling works.
|
|
#
|
|
# Indirect system calls, e.g. syscall(), are exceptions to this
|
|
# rule, since they are handled entirely by machine-dependent code
|
|
# and do not need argument structures built.
|
|
|
|
isvarargs = 0;
|
|
args64 = 0;
|
|
while (f <= end) {
|
|
if ($f == "...") {
|
|
f++;
|
|
isvarargs = 1;
|
|
varargc = argc;
|
|
continue;
|
|
}
|
|
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" \
|
|
|| argtype[argc] == "dev_t" \
|
|
|| argtype[argc] == "time_t") {
|
|
if ((argalign % 2) != 0 && sysalign &&
|
|
funcname != "sys_posix_fadvise") # XXX for now
|
|
parserr($f, "a padding argument")
|
|
} else {
|
|
argalign++;
|
|
}
|
|
if (argtype[argc] == "quad_t" || argtype[argc] == "off_t" \
|
|
|| argtype[argc] == "dev_t" || argtype[argc] == "time_t") {
|
|
if (sycall_flags == "0")
|
|
sycall_flags = "SYCALL_ARG"argc-1"_64";
|
|
else
|
|
sycall_flags = "SYCALL_ARG"argc-1"_64 | " sycall_flags;
|
|
args64++;
|
|
}
|
|
argname[argc]=$f;
|
|
f += 2; # skip name, and any comma
|
|
}
|
|
if (args64 > 0)
|
|
sycall_flags = "SYCALL_NARGS64_VAL("args64") | " sycall_flags;
|
|
# must see another argument after varargs notice.
|
|
if (isvarargs) {
|
|
if (argc == varargc)
|
|
parserr($f, "argument definition")
|
|
} else
|
|
varargc = argc;
|
|
}
|
|
|
|
function printproto(wrap) {
|
|
printf("/* syscall: \"%s%s\" ret: \"%s\" args:", wrap, funcalias,
|
|
returntype) > sysnumhdr
|
|
for (i = 1; i <= varargc; i++)
|
|
printf(" \"%s\"", argtype[i]) > sysnumhdr
|
|
if (isvarargs)
|
|
printf(" \"...\"") > sysnumhdr
|
|
printf(" */\n") > sysnumhdr
|
|
printf("#define\t%s%s%s\t%d\n\n", constprefix, wrap, funcalias,
|
|
syscall) > sysnumhdr
|
|
|
|
# rumpalooza
|
|
if (!rumpable)
|
|
return
|
|
|
|
if (wantrename)
|
|
printf("%s rump_%s(", returntype, funcstdname) > rumpcallshdr
|
|
else
|
|
printf("%s rump_sys_%s(", returntype, funcalias) > rumpcallshdr
|
|
for (i = 1; i < varargc; i++)
|
|
if (argname[i] != "PAD")
|
|
printf("%s, ", argtype[i]) > rumpcallshdr
|
|
if (isvarargs)
|
|
printf("%s, ...)", argtype[varargc]) > rumpcallshdr
|
|
else
|
|
printf("%s)", argtype[argc]) > rumpcallshdr
|
|
if (wantrename)
|
|
printf(" __RENAME(rump_%s)", funcname) > rumpcallshdr
|
|
printf(";\n") > rumpcallshdr
|
|
}
|
|
|
|
function printrumpsysent(insysent, compatwrap) {
|
|
if (!insysent) {
|
|
eno[0] = "rump_enosys"
|
|
eno[1] = "sys_nomodule"
|
|
printf("\t{ 0, 0, 0,\n\t (sy_call_t *)%s }, \t\t" \
|
|
"/* %d = unrumped */\n", \
|
|
eno[modular], syscall) > rumpsysent
|
|
return
|
|
}
|
|
|
|
printf("\t{ ") > rumpsysent
|
|
if (argc == 0) {
|
|
printf("0, 0, ") > rumpsysent
|
|
} else {
|
|
printf("ns(struct sys_%s%s_args), ", compatwrap_, funcalias) > rumpsysent
|
|
}
|
|
printf("0,\n\t %s },", wfn) > rumpsysent
|
|
for (i = 0; i < (41 - length(wfn)) / 8; i++)
|
|
printf("\t") > rumpsysent
|
|
printf("/* %d = %s%s */\n", syscall, compatwrap_, funcalias) > rumpsysent
|
|
}
|
|
|
|
function putent(type, compatwrap) {
|
|
# output syscall declaration for switch table.
|
|
if (compatwrap == "")
|
|
compatwrap_ = ""
|
|
else
|
|
compatwrap_ = compatwrap "_"
|
|
if (argc == 0)
|
|
arg_type = "void";
|
|
else {
|
|
arg_type = "struct " compatwrap_ funcname "_args";
|
|
}
|
|
proto = "int\t" compatwrap_ funcname "(struct lwp *, const " \
|
|
arg_type " *, register_t *);\n"
|
|
if (sysmap[proto] != 1) {
|
|
sysmap[proto] = 1;
|
|
print proto > sysprotos;
|
|
}
|
|
|
|
# output syscall switch entry
|
|
printf("\t{ ") > sysent
|
|
if (argc == 0) {
|
|
printf("0, 0, ") > sysent
|
|
} else {
|
|
printf("ns(struct %s%s_args), ", compatwrap_, funcname) > sysent
|
|
}
|
|
if (modular)
|
|
wfn = "(sy_call_t *)sys_nomodule";
|
|
else if (compatwrap == "")
|
|
wfn = "(sy_call_t *)" funcname;
|
|
else
|
|
wfn = "(sy_call_t *)" compatwrap "(" funcname ")";
|
|
printf("%s,\n\t %s },", sycall_flags, wfn) > sysent
|
|
for (i = 0; i < (33 - length(wfn)) / 8; i++)
|
|
printf("\t") > sysent
|
|
printf("/* %d = %s%s */\n", syscall, compatwrap_, funcalias) > sysent
|
|
|
|
# output syscall name for names table
|
|
printf("\t/* %3d */\t\"%s%s\",\n", syscall, compatwrap_, funcalias) \
|
|
> sysnamesbottom
|
|
|
|
# output syscall number of header, if appropriate
|
|
if (type == "STD" || type == "NOARGS" || type == "INDIR") {
|
|
# output a prototype, to be used to generate lint stubs in
|
|
# libc.
|
|
printproto("")
|
|
} else if (type == "COMPAT") {
|
|
# Just define the syscall number with a comment. These
|
|
# may be used by compatibility stubs in libc.
|
|
printproto(compatwrap_)
|
|
}
|
|
|
|
# output syscall argument structure, if it has arguments
|
|
if (argc != 0) {
|
|
printf("\nstruct %s%s_args", compatwrap_, funcname) > sysarghdr
|
|
if (type != "NOARGS") {
|
|
print " {" >sysarghdr;
|
|
for (i = 1; i <= argc; i++)
|
|
printf("\tsyscallarg(%s) %s;\n", argtype[i],
|
|
argname[i]) > sysarghdr
|
|
printf "}" >sysarghdr;
|
|
}
|
|
printf(";\n") > sysarghdr
|
|
if (type != "NOARGS" && type != "INDIR") {
|
|
printf("check_syscall_args(%s%s)\n", compatwrap_,
|
|
funcname) >sysarghdr
|
|
}
|
|
}
|
|
|
|
if (!rumpable) {
|
|
if (funcname == "sys_pipe" && rumphaspipe == 1)
|
|
insysent = 1
|
|
else
|
|
insysent = 0
|
|
} else {
|
|
insysent = 1
|
|
}
|
|
printrumpsysent(insysent, compatwrap)
|
|
|
|
# output rump marshalling code if necessary
|
|
if (!rumpable) {
|
|
return
|
|
}
|
|
|
|
# need a local prototype, we export the re-re-named one in .h
|
|
printf("\n%s rump_sys_%s(", returntype, funcalias) > rumpcalls
|
|
for (i = 1; i < argc; i++) {
|
|
if (argname[i] != "PAD")
|
|
printf("%s, ", argtype[i]) > rumpcalls
|
|
}
|
|
printf("%s);", argtype[argc]) > rumpcalls
|
|
|
|
printf("\n%s\nrump_sys_%s(", returntype, funcalias) > rumpcalls
|
|
for (i = 1; i < argc; i++) {
|
|
if (argname[i] != "PAD")
|
|
printf("%s %s, ", argtype[i], argname[i]) > rumpcalls
|
|
}
|
|
printf("%s %s)\n", argtype[argc], argname[argc]) > rumpcalls
|
|
printf("{\n\tregister_t rval[2] = {0, 0};\n\tint error = 0;\n") \
|
|
> rumpcalls
|
|
|
|
argarg = "NULL"
|
|
argsize = 0;
|
|
if (argc) {
|
|
argarg = "&callarg"
|
|
argsize = "sizeof(callarg)"
|
|
printf("\tstruct %s%s_args callarg;\n\n",compatwrap_,funcname) \
|
|
> rumpcalls
|
|
for (i = 1; i <= argc; i++) {
|
|
if (argname[i] == "PAD") {
|
|
printf("\tSPARG(&callarg, %s) = 0;\n", \
|
|
argname[i]) > rumpcalls
|
|
} else {
|
|
printf("\tSPARG(&callarg, %s) = %s;\n", \
|
|
argname[i], argname[i]) > rumpcalls
|
|
}
|
|
}
|
|
printf("\n") > rumpcalls
|
|
} else {
|
|
printf("\n") > rumpcalls
|
|
}
|
|
printf("\terror = rsys_syscall(%s%s, " \
|
|
"%s, %s, rval);\n", constprefix, funcalias, \
|
|
argarg, argsize) > rumpcalls
|
|
printf("\tif (error) {\n\t\trval[0] = -1;\n") > rumpcalls
|
|
if (returntype != "void") {
|
|
printf("\t\trsys_seterrno(error);\n\t}\n") > rumpcalls
|
|
printf("\treturn rval[0];\n") > rumpcalls
|
|
} else {
|
|
printf("\t}\n") > rumpcalls
|
|
}
|
|
printf("}\n") > rumpcalls
|
|
printf("rsys_alias(%s,rump_enosys)\n", funcname) > rumpcalls
|
|
|
|
}
|
|
$2 == "STD" || $2 == "NODEF" || $2 == "NOARGS" || $2 == "INDIR" {
|
|
parseline()
|
|
putent($2, "")
|
|
syscall++
|
|
next
|
|
}
|
|
$2 == "OBSOL" || $2 == "UNIMPL" || $2 == "EXCL" || $2 == "IGNORED" {
|
|
if ($2 == "OBSOL")
|
|
comment="obsolete"
|
|
else if ($2 == "EXCL")
|
|
comment="excluded"
|
|
else if ($2 == "IGNORED")
|
|
comment="ignored"
|
|
else
|
|
comment="unimplemented"
|
|
for (i = 3; i <= NF; i++)
|
|
comment=comment " " $i
|
|
|
|
if ($2 == "IGNORED")
|
|
sys_stub = "(sy_call_t *)nullop";
|
|
else
|
|
sys_stub = sys_nosys;
|
|
|
|
printf("\t{ 0, 0, 0,\n\t %s },\t\t\t/* %d = %s */\n", \
|
|
sys_stub, syscall, comment) > sysent
|
|
printf("\t{ 0, 0, 0,\n\t %s },\t\t\t/* %d = %s */\n", \
|
|
"(sy_call_t *)rump_enosys", syscall, comment) > rumpsysent
|
|
printf("\t/* %3d */\t\"#%d (%s)\",\n", syscall, syscall, comment) \
|
|
> sysnamesbottom
|
|
if ($2 != "UNIMPL")
|
|
printf("\t\t\t\t/* %d is %s */\n", syscall, comment) > sysnumhdr
|
|
syscall++
|
|
next
|
|
}
|
|
{
|
|
for (i = 1; i <= ncompat; i++) {
|
|
if ($2 == compat_upper[i]) {
|
|
parseline();
|
|
putent("COMPAT", compat[i])
|
|
syscall++
|
|
next
|
|
}
|
|
}
|
|
printf("%s: line %d: unrecognized keyword %s\n", infile, NR, $2)
|
|
exit 1
|
|
}
|
|
END {
|
|
# output pipe() syscall with its special rval[2] handling
|
|
if (rumphaspipe) {
|
|
printf("int rump_sys_pipe(int *);\n") > rumpcallshdr
|
|
printf("\nint rump_sys_pipe(int *);\n") > rumpcalls
|
|
printf("int\nrump_sys_pipe(int *fd)\n{\n") > rumpcalls
|
|
printf("\tregister_t rval[2] = {0, 0};\n") > rumpcalls
|
|
printf("\tint error = 0;\n") > rumpcalls
|
|
printf("\n\terror = rsys_syscall(SYS_pipe, ") > rumpcalls
|
|
printf("NULL, 0, rval);\n") > rumpcalls
|
|
printf("\tif (error) {\n") > rumpcalls
|
|
printf("\t\trsys_seterrno(error);\n") > rumpcalls
|
|
printf("\t} else {\n\t\tfd[0] = rval[0];\n") > rumpcalls
|
|
printf("\t\tfd[1] = rval[1];\n\t}\n") > rumpcalls
|
|
printf("\treturn error ? -1 : 0;\n}\n") > rumpcalls
|
|
}
|
|
|
|
maxsyscall = syscall
|
|
if (nsysent) {
|
|
if (syscall > nsysent) {
|
|
printf("%s: line %d: too many syscalls [%d > %d]\n", infile, NR, syscall, nsysent)
|
|
exit 1
|
|
}
|
|
while (syscall < nsysent) {
|
|
printf("\t{ 0, 0, 0,\n\t %s },\t\t\t/* %d = filler */\n", \
|
|
sys_nosys, syscall) > sysent
|
|
printf("\t{ 0, 0, 0,\n\t %s },\t\t\t/* %d = filler */\n", \
|
|
"(sy_call_t *)rump_enosys", syscall) > rumpsysent
|
|
printf("\t/* %3d */\t\"# filler\",\n", syscall, syscall) > sysnamesbottom
|
|
syscall++
|
|
}
|
|
}
|
|
printf("};\n") > sysent
|
|
printf("};\n") > rumpsysent
|
|
printf("CTASSERT(__arraycount(rump_sysent) == SYS_NSYSENT);\n") > rumpsysent
|
|
printf("#endif /* RUMP_CLIENT */\n") > rumpsysent
|
|
printf("};\n") > sysnamesbottom
|
|
printf("#define\t%sMAXSYSCALL\t%d\n", constprefix, maxsyscall) > sysnumhdr
|
|
if (nsysent)
|
|
printf("#define\t%sNSYSENT\t%d\n", constprefix, nsysent) > sysnumhdr
|
|
} '
|
|
|
|
cat $sysprotos >> $sysarghdr
|
|
echo "#endif /* _${constprefix}SYSCALL_H_ */" >> $sysnumhdr
|
|
echo "#endif /* _${constprefix}SYSCALLARGS_H_ */" >> $sysarghdr
|
|
printf "\n#include <rump/rump_syscalls_compat.h>\n" >> $rumpcallshdr
|
|
printf "\n#endif /* _RUMP_RUMP_SYSCALLS_H_ */\n" >> $rumpcallshdr
|
|
cat $sysdcl $sysent > $syssw
|
|
cat $sysnamesbottom >> $sysnames
|
|
cat $rumpsysent >> $rumpcalls
|
|
|
|
#chmod 444 $sysnames $sysnumhdr $syssw
|