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#!/bin/sh
#
# Copyright (C) 2001 Manuel Novoa III <mjn3@uclibc.org>
# Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
#
# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
#
# June 27, 2001 Manuel Novoa III
#
# This script expects top_builddir and CC (as used in the Makefiles) to be set
# in the environment, and outputs the appropriate
# $top_builddir/include/bits/sysnum.h # corresponding to
# $top_builddir/include/asm/unistd.h to stdout.
#
# Warning!!! This does _no_ error checking!!!
INCLUDE_OPTS="-nostdinc -I${KERNEL_HEADERS}"
case $CC in
*icc*) CC_SYSNUM_ARGS="-dM" ;;
*) CC_SYSNUM_ARGS="-dN" ;;
esac
# Most syscall numbers have names like '__NR_open', which become names
# like 'SYS_open'. Some of the ARM syscalls have names like
# '__ARM_NR_set_tls', which we transform into names like
# 'SYS_ARM_set_tls'.
( echo "#include <asm/unistd.h>";
echo "#include <asm/unistd.h>" |
$CC -E $CC_SYSNUM_ARGS $INCLUDE_OPTS - |
sed -ne 's/^[ ]*#define[ ]*__\([A-Za-z0-9_]*\)NR_\([A-Za-z0-9_]*\).*/UCLIBC_\1NR_\2 __\1NR_\2/gp' \
-e 's/^[ ]*#undef[ ]*__\([A-Za-z0-9_]*\)NR_\([A-Za-z0-9_]*\).*/UNDEFUCLIBC_\1NR_\2 __\1NR_\2/gp' # needed to strip out any kernel-internal defines
) |
$CC -E $INCLUDE_OPTS - |
( echo "/* WARNING!!! AUTO-GENERATED FILE!!! DO NOT EDIT!!! */" ;
echo ;
echo "#ifndef _BITS_SYSNUM_H" ;
echo "#define _BITS_SYSNUM_H" ;
echo ;
echo "#ifndef _SYSCALL_H" ;
echo "# error \"Never use <bits/sysnum.h> directly; include <sys/syscall.h> instead.\"" ;
echo "#endif" ; echo ;
sed -ne 's/^UCLIBC_\([A-Za-z0-9_]*\)NR_\([A-Za-z0-9_]*\) *\(.*\)/#undef __\1NR_\2\
#define __\1NR_\2 \3\
#define SYS_\1\2 __\1NR_\2/gp' \
-e 's/^UNDEFUCLIBC_\([A-Za-z0-9_]*\)NR_\([A-Za-z0-9_]*\).*/#undef __\1NR_\2/gp'
echo ;
echo "#endif" ;
)
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