Rev 6 | Blame | Compare with Previous | Last modification | View Log | RSS feed
/*
* 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.
*/
/**********************************************************************
$Author: release $
$Date: 1998/02/04 10:43:37 $
$Revision: 1.2 $
$Log: dwarf_loc.c,v $
* Revision 1.2 1998/02/04 10:43:37 release
* Changes during testing.
*
* Revision 1.1.1.1 1998/01/17 15:55:47 release
* First version to be checked into rolling release.
*
* Revision 1.3 1997/02/19 12:53:44 pwe
* NEWDIAGS for debugging optimised code
*
* Revision 1.2 1995/09/28 12:39:42 pwe
* dwarf.h via import, and type changes for tcc checks
*
* Revision 1.1.1.1 1995/08/14 14:30:21 pwe
* transferred from DJCH
*
**********************************************************************/
/* LOG 6/9/93 changes for sparc/ICL port of SVR4.2 djch
new stuff for sparc registers added by ra 8/9/93 */
/* LOG 27/9/93 removing the blocks aroung locations djch */
/* LOG 26/11/93 proc_no long -> int to shut up tdfc djch */
#include "config.h"
#include "common_types.h"
#include "installtypes.h"
/* machine dependent */
#include "machine.h"
#include "codermacs.h"
#include "tags.h"
/* machine dependent */
#include "out.h"
#include "shapemacs.h"
/* machine dependent */
#include "expmacs.h"
#include "basicread.h"
#include "dwarf_types.h"
#include "dwarf_out.h"
#include "dwarf_queue.h"
#include "dwarf_type.h"
#include "dwarf_loc.h"
#include "cross_config.h"
#ifndef CROSS_INCLUDE
#include <dwarf.h>
#else
#include CROSS_INCLUDE/dwarf.h>
#endif
void
out_dwarf_const4(exp x)
{
if (name(x) != val_tag && name(x) != null_tag) {
failer("non const exp in out_dwarf_const4");
return;
}
dwarf4n(no(x));
}
void
out_dwarf_const_by8(exp x)
{
if (name(x) != val_tag) {
failer("non const exp in out_dwarf_const_by8");
return;
}
dwarf4n((no(x) / 8));
}
void
out_dwarf_member_loc_attr(exp e)
{
int o;
OUT_DWARF_ATTR(AT_location);
if (name(e) != val_tag) {
failer("out_mem_loc_attr");
}
#ifdef LOCS_IN_BLKS
new_dwarf_blk2();
#else
OUT_DWARF_LOC_BLK(6);
#endif
o = no(e) /8;
dwarf1(OP_CONST);
dwarf4n(o);
dwarf1(OP_ADD);
#ifdef LOCS_IN_BLKS
leave_dwarf_blk2();
#endif
}
/* given the bit offset to base of anon object */
void
out_dwarf_bit_member_loc_attr(int u)
{
OUT_DWARF_ATTR(AT_location);
#ifdef LOCS_IN_BLKS
new_dwarf_blk2();
#else
OUT_DWARF_LOC_BLK(6);
#endif
dwarf1(OP_CONST);
dwarf4n(u/8);
dwarf1(OP_ADD);
#ifdef LOCS_IN_BLKS
leave_dwarf_blk2();
#endif
}
#if (is80x86)
static int
ok_reg_no(int x)
{
switch (x) {
case 1:
case 2:
case 4:
case 8:
case 16:
case 0x20:
case 0x40:
return 1;
default:
return 0;
}
}
static char *
dwarf_reg_str(int x)
{
switch (x) {
case 1:
return("0\t#\teax");
case 2:
return("2\t#\tedx");
case 4:
return("1\t#\tecx");
case 8:
return("3\t#\tebx"); /* 4 is esp */
case 0x10:
return("7\t#\tedi");
case 0x20:
return("6\t#\tesi");
case 0x40:
return("5\t#\tebp");
/* 8 eip 9 eflags 10 fpsw 11 fpcw
12 fpip 13 fpdp 14 st0....*/
default:
failer("Illegal reg no in dwarf_reg_str");
exit(EXIT_FAILURE);
}
}
#define DWARF_FP "5\t# ebp"
#else
#if (issparc)
static char *
dwarf_reg_str(long x)
{
int i;
for (i = 0; i < 32; i++) {
if (x & 1) {
static char buff[10];
sprintf(buff, "%d", i);
}
x >>= 1;
}
failer("Illegal register number in dwarf_reg_str");
return("???");
}
#else
error need internal to dwarf register number routines
#endif
#endif
int
out_dwarf_loc_attr(exp t, int proc_no)
{
int rval = 1;
if (name(t) != name_tag) {
OUT_DWARF_ATTR(AT_const_value);
out_dwarf_const4(t);
return rval;
}
#ifdef NEWDIAGS
if (isdiscarded(t)) {
/* no location */
return rval;
}
#endif
OUT_DWARF_ATTR(AT_location);
#ifdef LOCS_IN_BLKS
new_dwarf_blk2();
#endif
{
exp s = son(t);
if (isglob(s)) {
#ifndef LOCS_IN_BLKS
OUT_DWARF_LOC_BLK(5);
#endif
dwarf1(OP_ADDR);
dwarf4(brog(s) -> dec_u.dec_val.dec_id);
} else {
#if (is80x86)
int p = ptno(s);
switch (p) {
case local_pl: {
char expr_buf[100];
sprintf(expr_buf, "%d - %sdisp%d # local var",
(no(s) + no(t)) / 8,
local_prefix,proc_no);
#ifndef LOCS_IN_BLKS
OUT_DWARF_LOC_BLK(11);
#endif
dwarf1(OP_CONST);
dwarf4(expr_buf);
}
dwarf1(OP_BASEREG);
dwarf4(DWARF_FP);
dwarf1(OP_ADD);
break;
case par_pl:
#ifndef LOCS_IN_BLKS
OUT_DWARF_LOC_BLK(11);
#endif
dwarf1(OP_CONST);
dwarf4n((no(s) +no(t)) /8 + 8);
dwarf1(OP_BASEREG);
dwarf4(DWARF_FP);
dwarf1(OP_ADD);
break;
case reg_pl:
if (!ok_reg_no(no(s))) {
/* fails for fp regs, so put out no
* atoms */
rval = 0;
} else {
#ifndef LOCS_IN_BLKS
OUT_DWARF_LOC_BLK(5);
#endif
dwarf1(OP_REG);
dwarf4(dwarf_reg_str(no(s)));
}
break;
default:
failer("illegal ptno in out_loc_attr");
exit(EXIT_FAILURE);
}
#else
#if (issparc)
if (props(s) & defer_bit) {
failer("Deferred expression in out_loc_attr");
rval = 0;
} else if (props(s) & inreg_bits) {
#ifndef LOCS_IN_BLKS
OUT_DWARF_LOC_BLK(5);
#endif
dwarf1(OP_REG);
dwarf4n(no(s));
} else if (props(s) & infreg_bits) {
failer("Floating register expression in out_loc_attr");
rval = 0;
} else {
baseoff b;
b = boff(s);
#ifndef LOCS_IN_BLKS
OUT_DWARF_LOC_BLK(11);
#endif
dwarf1(OP_CONST);
dwarf4n((int)b.offset);
dwarf1(OP_BASEREG);
dwarf4n((int)b.base);
dwarf1(OP_ADD);
}
#else
error need machine specific non-global location description code
#endif
}
#endif
}
#ifdef LOCS_IN_BLKS
leave_dwarf_blk2();
#endif
return rval;
}