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/*
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.
*/
/* svr4/assembler.c */
/**********************************************************************
$Author: release $
$Date: 1998/01/17 15:55:53 $
$Revision: 1.1.1.1 $
$Log: assembler.c,v $
* Revision 1.1.1.1 1998/01/17 15:55:53 release
* First version to be checked into rolling release.
*
* Revision 1.7 1997/03/24 12:43:46 pwe
* outn int->long
*
* Revision 1.6 1995/10/23 17:34:52 pwe
* dynamic initialisation PIC, and sco diags
*
* Revision 1.5 1995/10/09 15:14:48 pwe
* dynamic initialisation etc
*
* Revision 1.4 1995/07/07 15:22:39 pwe
* prepare for 4.0, and correct PIC switch
*
* Revision 1.3 1995/02/20 09:50:56 pwe
* alignment of bitfield global data
*
* Revision 1.2 1995/01/30 12:57:39 pwe
* Ownership -> PWE, tidy banners
*
* Revision 1.1 1994/10/27 12:16:59 jmf
* Initial revision
*
* Revision 1.2 1994/07/13 07:51:05 jmf
* Added Log
*
**********************************************************************/
#include "config.h"
#include "common_types.h"
#include "out.h"
#include "expmacs.h"
#include "exp.h"
#include "localflags.h"
#include "shapemacs.h"
#include "operand.h"
#include "machine.h"
#include "flags.h"
#include "basicread.h"
/* PROCEDURES */
void outbyte
PROTO_Z ()
{
outs(".byte ");
return;
}
void outshort
PROTO_Z ()
{
outs(".2byte ");
return;
}
void outlong
PROTO_Z ()
{
outs(".4byte ");
return;
}
void align_label
PROTO_N ( (f, jr) )
PROTO_T ( int f X exp jr )
{
if (is80486 && !is80586 && ptno(jr) != last_jump_label) {
/* forward jump and continued into
if (f==0)
outs(".align 16,7,1");
*/
if (f == 1) /* repeat jump */
outs(".align 16,7,1");
if (f == 2) /* preceded by a jmp or ret */
outs(".align 16,7,1");
if (f == 3)
outs(".align 4");
outs("\n");
};
if (is80586 && ptno(jr) != last_jump_label) {
if (f >= 1 && f <= 3)
outs(".align 4\n");
};
return;
}
void eval_postlude
PROTO_N ( (s, c) )
PROTO_T ( char * s X exp c )
{
outs(".size ");
outs (s);
outs (",");
outn((long)(shape_size(sh(c))+7)/8);
outnl();
outs(".type ");
outs (s);
outs (",@object");
outnl();
return;
}
void out_readonly_section
PROTO_Z ()
{
outs (".section .rodata");
return;
}
void out_dot_comm
PROTO_N ( (id, sha) )
PROTO_T ( char * id X shape sha )
{
outs (".comm ");
outs (id);
outs (",");
outn((long)shape_size(sha)/ 8);
outs (",");
if (is80486 && (name(sha) == realhd ||
(name(sha) == nofhd && ptno(sha) == realhd) ||
shape_size(sha) >= 512))
/* the pt field of an nof is used to hold the
shapemacs.h hd description of the shape and is set in
f_nof */
outn((long)8);
else
if (shape_align(sha)<8) { /* alignment of bitfields */
int nbytes = (shape_size(sha)+7)/8;
outn ((long)((nbytes<4) ? nbytes : 4));
}
else
outn((long)shape_align(sha)/8);
outnl ();
return;
}
void out_dot_lcomm
PROTO_N ( (id, sha) )
PROTO_T ( char * id X shape sha )
{
outs (".lcomm ");
outs (id);
outs (",");
outn((long)shape_size(sha)/ 8);
outs (",");
if (is80486 && (name(sha) == realhd ||
(name(sha) == nofhd && ptno(sha) == realhd) ||
shape_size(sha) >= 512))
/* the pt field of an nof is used to hold the
shapemacs.h hd description of the shape and is set in
f_nof */
outn((long)8);
else
if (shape_align(sha)<8) { /* alignment of bitfields */
int nbytes = (shape_size(sha)+7)/8;
outn ((long)((nbytes<4) ? nbytes : 4));
}
else
outn((long)shape_align(sha)/8);
outnl ();
return;
}
void out_bss
PROTO_N ( (id, sha) )
PROTO_T ( char * id X shape sha )
{
outs (".bss ");
outs (id);
outs (",");
outn ((long)((( shape_size(sha)/ 8) + 3) / 4) * 4);
outnl ();
return;
}
static int pic_label;
void pic_prelude
PROTO_Z ()
{
int n = next_lab();
pic_label = n;
outs(" call .L"); outn((long)n); outnl();
outs(".L"); outn((long)n); outs(":"); outnl();
outs(" popl %ebx"); outnl();
outs(" addl $_GLOBAL_OFFSET_TABLE_+[.-.L"); outn((long)n); outs("],%ebx");
outnl();
return;
}
void out_rename
PROTO_N ( (oldid, newid) )
PROTO_T ( char * oldid X char * newid )
{
outs(".set "); outs(oldid); outs(","); outs(newid); outnl();
return;
}
void out_switch_jump
PROTO_N ( (tab, a, min) )
PROTO_T ( int tab X where a X int min )
{
if (PIC_code) {
outs(" leal ");
outs(local_prefix);
outn((long)tab);
outs("@GOTOFF(%ebx,");
operand (32, a, 1, 0);
outs(",4),%eax");
outnl();
outs(" movl ");
outs("-");
outn((long)(4 * min));
outs ("(%eax),%eax");
outnl();
outs(" addl %ebx,%eax");
outnl();
outs(" subl $_GLOBAL_OFFSET_TABLE_+[.-.L"); outn((long)pic_label);
outs("],%eax"); outnl();
outs(" jmp *%eax");
outnl();
return;
/* MODIFY FOR NEW CASE !!!!! */
}
else {
outs (" jmp *");
outs(local_prefix);
outn((long)tab);
outs("-");
outn((long)(4 * min));
outs ("(,");
operand (32, a, 1, 0);
outs (",4)");
outnl ();
return;
};
}
void out_switch_table
PROTO_N ( (tab, min, max, v, absent) )
PROTO_T ( int tab X int min X int max X int * v X int absent )
{
int i;
if (PIC_code) {
outs(".section .rodata");
outnl();
outs(".align 4");
outnl();
outs(local_prefix);
outn ((long)tab);
outs (":");
outnl ();
for (i = min; i <= max; ++i) {
outs (".long ");
if (v[i - min] != -1) {
outs(local_prefix);
outn ((long)v[i - min]);
outs("-");
outs(local_prefix);
outn((long)pic_label);
}
else {
if (absent == -1)
outn((long)0);
else {
outs(local_prefix);
outn ((long)absent);
outs("-");
outs(local_prefix);
outn((long)pic_label);
};
};
outnl ();
};
outs(".text");
outnl();
return;
}
else {
outs(".section .rodata");
outnl();
outs(".align 4");
outnl();
outs(local_prefix);
outn ((long)tab);
outs (":");
outnl ();
for (i = min; i <= max; ++i) {
outs (".long ");
if (v[i - min] != -1) {
outs(local_prefix);
outn ((long)v[i - min]);
}
else {
if (absent == -1)
outn ((long)0);
else {
outs(local_prefix);
outn ((long)absent);
};
};
outnl ();
};
outs(".text");
outnl();
return;
};
}
void proc_size
PROTO_N ( (s) )
PROTO_T ( char * s )
{
outs(".align 16,7,4");
outnl();
outs(".size ");
outs(s);
outs(", .-");
outs(s);
outnl();
}
void proc_type
PROTO_N ( (s) )
PROTO_T ( char * s )
{
outs(".type ");
outs(s);
outs(",@function");
outnl();
return;
}
void dot_align
PROTO_N ( (n) )
PROTO_T ( int n )
{
outs(".align "); outn((long)n); outnl();
return;
}
void outend
PROTO_Z ()
{ /* close the output */
int st = fclose (fpout);
if (st == EOF) {
failer ("failed to close file");
exit(EXIT_FAILURE);
};
}
void outopenbr
PROTO_Z ()
{
outs("[");
return;
}
void outclosebr
PROTO_Z ()
{
outs("]");
return;
}
void outdivsym
PROTO_Z ()
{
outs("\\/");
return;
}
void out_initialiser
PROTO_N ( (id) )
PROTO_T ( char* id )
{
outs (".section .init\n");
outs (" call ");
outs (id);
if (PIC_code)
outs ("@PLT");
outnl ();
outnl ();
return;
}