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/*
* Copyright (c) 2002-2005 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.
*/
/************************************************************************/
/* */
/* gen_tokens.c Version 2.0 */
/* */
/* This program produces some of the target dependency tokens */
/* in 'PL TDF' or 'tnc' format for the target system it is */
/* compiled and run on. */
/* */
/* Results are not guaranteed - they should be checked. */
/* */
/* Each token value may be pre-set by externally defining a macro */
/* with the appropriate local name and value. */
/* */
/* Output format is PL TDF by default, 'tnc' if the macro TNC_SRC */
/* is defined. */
/* */
/************************************************************************/
#include <stdio.h>
#include <stddef.h>
#include <limits.h>
/* Defined in '../../../../utilities/shared' */
static void
out_nat(char *name, int value)
{
#ifdef TNC_SRC
(void)printf("( make_tokdef .~%s nat %d )\n\n", name, value);
#else /* PL TDF source */
(void)printf("Tokdef .~%s = [] NAT %d;\n\n", name, value);
#endif
return;
}
static void
out_bool(char *name, int value)
{
char *str = (value ? "true" : "false");
#ifdef TNC_SRC
(void)printf("( make_tokdef .~%s bool %s )\n\n", name, str);
#else /* PL TDF source */
(void)printf("Tokdef .~%s = [] BOOL %s;\n\n", name, str);
#endif
return;
}
static int
calc_width(unsigned long s_max)
{
int i;
for (i=1;;i++) {
if ((((unsigned long)1) <<i) > s_max) return i+1;
}
/* UNREACHED */
}
#define width(c) calc_width((unsigned long)(c))
int
main(void)
{
int c_width, s_width, i_width, l_width, sz_width;
int p_width, al_width, str_ch_width;
int c_sgn, bf_sgn, bdiv, l_end;
#ifdef char_width
c_width = char_width;
#else
c_width = width(SCHAR_MAX);
#endif
out_nat("char_width", c_width);
#ifdef short_width
s_width = short_width;
#else
s_width = width(SHRT_MAX);
#endif
out_nat("short_width", s_width);
#ifdef int_width
i_width = int_width;
#else
i_width = width(INT_MAX);
#endif
out_nat("int_width", i_width);
#ifdef long_width
l_width = long_width;
#else
l_width = width(LONG_MAX);
#endif
out_nat("long_width", l_width);
#ifdef size_t_width
sz_width = size_t_width;
#else
sz_width = sizeof(size_t)* c_width;
#endif
out_nat("size_t_width", sz_width);
#ifdef ptr_width
p_width = ptr_width;
#else
p_width = sizeof(char*)* c_width;
#endif
out_nat("ptr_width", p_width);
#ifdef min_struct_rep
al_width = min_struct_rep;
str_ch_width = min_struct_rep;
#else
{
struct t { char c; struct { char c; } s; };
struct c { char c; };
al_width = offsetof(struct t,s)* c_width;
str_ch_width = sizeof(struct c)* c_width;
}
#endif
if (al_width == str_ch_width) {
out_nat("min_struct_rep", al_width);
}
#ifdef char_is_signed
c_sgn = char_is_signed;
#else
c_sgn = (CHAR_MIN<0)? 1 : 0;
#endif
out_nat("char_is_signed", c_sgn);
#ifdef bitfield_is_signed
bf_sgn = bitfield_is_signed;
#else
{
struct { int ibits : 2; } s;
s.ibits = -1;
bf_sgn = (s.ibits<0)? 1 : 0;
}
#endif
out_nat("bitfield_is_signed", bf_sgn);
#ifdef best_div
bdiv = best_div;
#else
bdiv = (4%(-6) >0) +1;
#endif
out_nat("best_div", bdiv);
#ifdef little_endian
l_end = little_endian;
#else
{
unsigned u;
u = ('a' << 24) | ('b' << 16) | ('c' << 8) | ('d' << 0);
l_end = -1;
if (sizeof(u) ==4 && *(char *) &u == 'd')l_end = 1;
if (sizeof(u) ==4 && *(char *) &u == 'a')l_end = 0;
}
#endif
if (l_end >= 0 && l_end <= 1) {
out_bool("little_endian", l_end);
}
return 0;
}