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/*
* Copyright (c) 2002-2006 The TenDRA Project <http://www.tendra.org/>.
* 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. Neither the name of The TenDRA Project 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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDERS 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.
*
* $Id$
*/
/*
Crown Copyright (c) 1997
This TenDRA(r) Computer Program is subject to Copyright
owned by the United Kingdom Secretary of State for Defence
acting through the Defence Evaluation and Research Agency
(DERA). It is made available to Recipients with a
royalty-free licence for its use, reproduction, transfer
to other parties and amendment for any purpose not excluding
product development provided that any such use et cetera
shall be deemed to be acceptance of the following conditions:-
(1) Its Recipients shall ensure that this Notice is
reproduced upon any copies or amended versions of it;
(2) Any amended version of it shall be clearly marked to
show both the nature of and the organisation responsible
for the relevant amendment or amendments;
(3) Its onward transfer from a recipient to another
party shall be deemed to be that party's acceptance of
these conditions;
(4) DERA gives no warranty or assurance as to its
quality or suitability for any purpose and DERA accepts
no liability whatsoever in relation to any use to which
it may be put.
*/
/*** tdf-write.c --- TDF writer ADT.
*
** Author: Steve Folkes <smf@hermes.mod.uk>
*
*** Commentary:
*
* This file implements the TDF writer routines used by the TDF linker.
*
*** Change Log:
* $Log: tdf-write.c,v $
* Revision 1.1.1.1 1998/01/17 15:57:20 release
* First version to be checked into rolling release.
*
* Revision 1.3 1995/09/22 08:39:40 smf
* Fixed problems with incomplete structures (to shut "tcc" up).
* Fixed some problems in "name-key.c" (no real problems, but rewritten to
* reduce the warnings that were output by "tcc" and "gcc").
* Fixed bug CR95_354.tld-common-id-problem (library capsules could be loaded
* more than once).
*
* Revision 1.2 1994/12/12 11:46:58 smf
* Performing changes for 'CR94_178.sid+tld-update' - bringing in line with
* OSSG C Coding Standards.
*
* Revision 1.1.1.1 1994/07/25 16:03:39 smf
* Initial import of TDF linker 3.5 non shared files.
*
**/
/****************************************************************************/
#include "tdf-write.h"
#include "gen-errors.h"
#include "ostream.h"
#include "solve-cycles.h"
/*--------------------------------------------------------------------------*/
static void
tdf_write_nibble(TDFWriterP writer, unsigned nibble)
{
if (writer->new_byte) {
writer->new_byte = FALSE;
writer->byte = (ByteT)((nibble & 0x0F) << 4);
} else {
writer->new_byte = TRUE;
writer->byte |= (ByteT)(nibble & 0x0F);
bostream_write_byte(& (writer->bostream), writer->byte);
}
}
/*--------------------------------------------------------------------------*/
BoolT
tdf_writer_open(TDFWriterP writer, CStringP name)
{
writer->new_byte = TRUE;
if (!bostream_open(& (writer->bostream), name)) {
return(FALSE);
}
return(TRUE);
}
CStringP
tdf_writer_name(TDFWriterP writer)
{
return(bostream_name(& (writer->bostream)));
}
void
tdf_write_int(TDFWriterP writer, unsigned value)
{
unsigned shift = 0;
unsigned tmp = value;
unsigned mask = (~(unsigned)0x07);
while (tmp & mask) {
tmp >>= 3;
shift++;
}
while (shift) {
tmp = ((value >> (3 * shift)) & 0x07);
shift--;
tdf_write_nibble(writer, tmp);
}
tmp = ((value & 0x07) | 0x08);
tdf_write_nibble(writer, tmp);
}
void
tdf_write_align(TDFWriterP writer)
{
if (!(writer->new_byte)) {
bostream_write_byte(& (writer->bostream), writer->byte);
writer->new_byte = TRUE;
}
}
void
tdf_write_bytes(TDFWriterP writer, NStringP nstring)
{
unsigned length = nstring_length(nstring);
CStringP contents = nstring_contents(nstring);
tdf_write_align(writer);
bostream_write_chars(& (writer->bostream), length, contents);
}
void
tdf_write_string(TDFWriterP writer, NStringP nstring)
{
unsigned length = nstring_length(nstring);
tdf_write_int(writer,(unsigned)8);
tdf_write_int(writer, length);
tdf_write_bytes(writer, nstring);
}
void
tdf_write_name(TDFWriterP writer, NameKeyP name)
{
unsigned type;
unsigned components;
unsigned i;
NStringP nstring;
switch (name_key_type(name))EXHAUSTIVE {
case KT_STRING:
type = (unsigned)(0x1 << 2);
tdf_write_nibble(writer, type);
tdf_write_align(writer);
tdf_write_string(writer, name_key_string(name));
break;
case KT_UNIQUE:
type = (unsigned)(0x2 << 2);
tdf_write_nibble(writer, type);
tdf_write_align(writer);
components = name_key_components(name);
tdf_write_int(writer, components);
for (i = 0; i < components; i++) {
nstring = name_key_get_component(name, i);
tdf_write_string(writer, nstring);
}
break;
}
}
void
tdf_writer_close(TDFWriterP writer)
{
tdf_write_align(writer);
bostream_close(& (writer->bostream));
}
/*
* Local variables(smf):
* eval: (include::add-path-entry "../os-interface" "../library")
* eval: (include::add-path-entry "../generated")
* end:
**/