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#!/bin/bash -e
# This is part of um-ViewOS
# The user-mode implementation of OSVIEW -- A Process with a View
#
# syscallnames.sh: extracts correspondence syscall number - syscall name
#
# Copyright 2005 Ludovico Gardenghi
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License, version 2, as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#
# $Id: syscallnames.sh 1009 2011-10-24 19:44:13Z rd235 $
#
#set -x
tmpfile=`mktemp /tmp/scnXXXXXX`
tmpoutfile=`mktemp /tmp/scnXXXXXX`
tmpsfile=`mktemp /tmp/scnXXXXXX`
tmpsoutfile=`mktemp /tmp/scnXXXXXX`
# First step: obtain the total number of system calls
### cat > $tmpfile << _END_
### #include <stdio.h>
### #include <asm/unistd.h>
###
### int main(void)
### {
### printf("%d\n", NR_syscalls);
### return 0;
### }
### _END_
###
### gcc -xc -o "$tmpoutfile" "$tmpfile"
### syscalls=$($tmpoutfile)
###
# Second step: read system calls names
cat > $tmpfile << _END_
#include <stdio.h>
#include <asm/unistd.h>
int main(void)
{
_END_
echo "#include <asm/unistd.h>" |
cpp -dN | egrep "^#[[:blank:]]*define[[:blank:]]+__NR_" |
tr -s " " " " | cut -d" " -f2 | sed 's/__NR_//g' | sort | uniq | while read
do
cat >> $tmpfile << _END_
#ifdef __NR_$REPLY
printf("%d\t%s\n", __NR_$REPLY, "$REPLY");
#endif
_END_
done
cat >> $tmpfile << _END_
return 0;
}
_END_
cat > $tmpsfile << _END_
#include <stdio.h>
#include <linux/net.h>
int main(void)
{
_END_
echo "#include <linux/net.h>" |
cpp -dN | egrep "^#[[:blank:]]*define[[:blank:]]+SYS_" |
tr -s " " " " | cut -d" " -f2 | sed 's/SYS_//g' | sort | uniq | while read
do
cat >> $tmpsfile << _END_
#ifdef SYS_$REPLY
printf("%d\t%s\n", SYS_$REPLY, "$REPLY");
#endif
_END_
done
cat >> $tmpsfile << _END_
return 0;
}
_END_
gcc -xc -o "$tmpoutfile" "$tmpfile"
gcc -xc -o "$tmpsoutfile" "$tmpsfile"
lastscno=-1
cat > syscallnames.h << _END_
#ifndef _SYSCALLNAMES_H
#define _SYSCALLNAMES_H
#include <asm/unistd.h>
static const char *syscallnames[] = {
_END_
$tmpoutfile | sort -n | uniq | ( while read scno scname
do
if [[ $scno == $lastscno ]]
then
# Two system calls with the same number
continue
fi
if [[ $scno -gt $(($lastscno + 1)) ]]
then
for i in `seq $(($lastscno+1)) $(($scno-1))`
do
echo " /* $i */ \"UNKNOWN($i)\","
done
fi
echo " /* $scno */ \"$scname\","
lastscno=$scno
done >> syscallnames.h
scsize=$(($lastscno + 1))
cat >> syscallnames.h << _END_
};
static const int syscallnames_size = $scsize;
#define SYSCALLNAME(n) (((n) < syscallnames_size) ? syscallnames[(n)] : "OUTOFBOUNDS")
#ifdef __NR_socketcall
static const char *sockcallnames[] = {
_END_
lastscno=-1
$tmpsoutfile | sort -n | uniq | ( while read scno scname
do
if [[ $scno == $lastscno ]]
then
# Two system calls with the same number
continue
fi
if [[ $scno -gt $(($lastscno + 1)) ]]
then
for i in `seq $(($lastscno+1)) $(($scno-1))`
do
echo " /* $i */ \"UNKNOWN($i)\","
done
fi
echo " /* $scno */ \"$scname\","
lastscno=$scno
done >> syscallnames.h
socksize=$(($lastscno + 1))
cat >> syscallnames.h << _END_
};
static const int sockcallnames_size = $socksize;
#define SOCKCALLNAME(n) (((n) < sockcallnames_size) ? sockcallnames[(n)] : "OUTOFBOUNDS")
#endif
#endif
_END_
cat > nrsyscalls.h << _END_
#ifndef _NRSYSCALLS_H
#define _NRSYSCALLS_H
#include <asm/unistd.h>
#define _UM_NR_syscalls $scsize
#ifdef __NR_socketcall
#define _UM_NR_sockcalls $socksize
#endif
#endif
_END_
)
)
rm -f "$tmpfile" "$tmpoutfile" "$tmpsfile" "$tmpsoutfile"
|
