pcexterns.awk

早期freebsd实现

#!/bin/sh -
#
# Copyright (c) 1982, 1993
#	The Regents of the University of California.  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 by the University of
#	California, Berkeley and its contributors.
# 4. Neither the name of the University nor the names of its contributors
#    may be used to endorse or promote products derived from this software
#    without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
#
#	@(#)pcexterns.awk	8.1 (Berkeley) 6/6/93
#

# This generates .stabs for all the global routines and variables
# in a library. The format of a stab can be found in man5/stab.5.
#
# This value must be coordinated with the one in ../src/pstab.h.
#
BEGIN {
	N_FLAGCHECKSUM = 1;
}
#
# Generate "source file" stab for the library name.
#
NR == 1	{
	name = substr($1, 1, index($1, ":") - 1);
	printf "	.stabs	\"%s\",0x30,0,0x1,%d\n", name, N_FLAGCHECKSUM;
}
#
# Generate "library routine" stab.
#
NF == 3 && $2 == "T" {
	printf "	.stabs	\"%s\",0x30,0,0xc,0x%d\n", substr($3, 2), NR;
}
#
# Generate "library variable" stab.
#
NF == 3 && $2 ~ /[ABD]/ {
	printf "	.stabs	\"%s\",0x30,0,0xb,0x%d\n", substr($3, 2), NR;
}