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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.
*/
/* alphadiags.c,v 1.3 1995/06/28 10:19:06 john Exp */
#ifndef lint
static char vcid[] = "alphadiags.c,v 1.3 1995/06/28 10:19:06 john Exp";
#endif /* lint */
/*
alphadiags.c
This file contains functions to handle code diagnostics for
alpha/OSF1. (largely based on the mips installer version
'mipsdiags.c').
*/
/*
alphadiags.c,v
* Revision 1.3 1995/06/28 10:19:06 john
* Reformatting
*
* Revision 1.2 1995/05/23 10:52:24 john
* Fix to non 64 bit machines
*
* Revision 1.1.1.1 1995/03/23 10:39:01 john
* Entered into CVS
*
* Revision 1.7 1995/01/31 14:24:24 john
* Various portability changes
*
* Revision 1.6 1995/01/26 13:36:38 john
* Minor portability improvements
*
*/
#include "config.h"
#include "common_types.h"
#include "exptypes.h"
#include "shapemacs.h"
#include "expmacs.h"
#include "exp.h"
#include "procrectypes.h"
#include "procrecs.h"
#include "tags.h"
#include "bitsmacs.h"
#include "diagtypes.h"
#include "xalloc.h"
#include "syms.h"
#include "diag_fns.h"
#include "locate.h"
#include "alphadiags.h"
#include "diagglob.h"
#include "mark_scope.h"
#include "ibinasm.h"
#include "out_ba.h"
#include "coder.h"
#include "cross.h"
#include "symbol.h"
#include "cross_config.h"
#ifndef CROSS_INCLUDE
#include <symconst.h>
#else
#include CROSS_INCLUDE/symconst.h>
#endif
extern FILE * as_file;
extern bool last_param PROTO_S ((exp e));
extern int currentfile;
/* our current fileno */
extern int mainfile;
/* default fileno for no diags or shape output */
int *file_dnos; /* dense nos for files */
filename * fds;
int nofds = 0;
int szfds = 0;
#if 0
void collect_files
PROTO_N ( ( f ) )
PROTO_T ( filename f )
{
return;
}
void OUTPUT_DIAG_TAGS
PROTO_Z ()
{
return;
}
#endif
void collect_files
PROTO_N ( ( f ) )
PROTO_T ( filename f )
{
if (nofds>=szfds) {
fds = (filename*)xrealloc(fds, (size_t)(szfds+=5)*sizeof(filename));
}
fds[nofds++] = f;
}
int find_file
PROTO_N ( ( f ) )
PROTO_T ( filename f )
{
int i;
for(i=0; i<nofds; i++) {
if (strcmp(f->file.ints.chars, fds[i]->file.ints.chars)==0) return i;
}
return 0;
}
/* produce symnos for all text files in compilation */
void symnosforfiles
PROTO_Z ()
{
int i;
file_dnos = (int *) xcalloc (nofds, sizeof (int));
for (i = 0; i < nofds; i++) {
file_dnos[i] = new_lsym_d (fds[i]->file.ints.chars, 0, stFile, scText,
(diag_type)0, i);
}
return;
}
/* used for testing whether o/p worked */
static void x
PROTO_N ( ( i ) )
PROTO_T ( int i )
{
if (i == EOF) {
failer ("can't output");
exit (EXIT_FAILURE);
}
return;
}
/* output .file directive for file i */
void stab_file
PROTO_N ( ( i ) )
PROTO_T ( int i )
{
int l;
if (currentfile == i)
return;
l = (int)strlen (fds[i]->file.ints.chars);
if (as_file) {
x (fprintf (as_file, "\t.file\t%d \"%s\"\n", file_dnos[i],
fds[i]->file.ints.chars+1));
}
out_value (file_dnos[i], ifile, make_INT64(0,l), 0);
out_data (fds[i]->file.ints.chars, l);
currentfile = i;
return ;
}
int currentlno = -1; /* the last line number output */
void stabd
PROTO_N ( ( findex,lno ) )
PROTO_T ( int findex X int lno )
{
if (findex==currentfile && lno==currentlno) return;
stab_file (findex);
if (as_file)
x (fprintf (as_file, "\t.loc\t%d %d\n", file_dnos[findex], lno));
out_loc (file_dnos[findex], (unsigned)lno);
currentlno = lno;
}
static char *lexlev = "0"; /* historic !!! */
void diagbr_open
PROTO_N ( ( findex ) )
PROTO_T ( int findex )
{
int symno;
stab_file (findex);
symno = new_lsym_d ((char *) 0, 0, stBlock, scText, (diag_type)0,
currentfile);
lexlev[0]++;
if (as_file){
x (fprintf (as_file, "\t.bgnb\t%d\n", symno));
}
out_ent (symno, ibgnb, 0);
}
void diagbr_close
PROTO_N ( ( findex ) )
PROTO_T ( int findex )
{
int symno;
stab_file (findex);
symno = new_lsym_d ((char *) 0, 0, stEnd, scText, (diag_type)0,
currentfile);
lexlev[0]--;
if (as_file){
x (fprintf (as_file, "\t.endb\t%d\n", symno));
}
out_ent (symno, iendb, 0);
}
/*
output appropriate rubbish to symbol table to indicate the declaration of a
local identifier, nm, defined by id, displaced by disp; findex is the index
of the file containing the declaration. The text below gives o/p for
identifiers allocated in registers; in fact, with current translator,
none are used by stab_local. I don't even know whether the MIPS dbx can
actually use them.
*/
void stab_local
PROTO_N ( ( nm,dt,ldid,disp,findex ) )
PROTO_T ( char *nm X diag_type dt X exp ldid X int disp X int findex )
{
int fs = frame_size >> 3;
exp id = son(ldid);
short sc;
int v;
disp+=no(ldid);
again:
if (name (id) == ident_tag) {
if ((props (id) & defer_bit) == 0) {
if ((props (id) & inreg_bits) != 0) {
sc = scRegister;
v = no (id);
/*if (as_file){
x (fprintf (as_file, " # %s is in $%d\n", nm, v));
}*/
}
else if ((props (id) & infreg_bits) != 0) {
sc = scRegister;
v = (no (id) << 1) + float_register;
/* if (as_file)
x (fprintf (as_file, " # %s is in $f%d\n", nm, v - float_register));*/
}
else {
v = ((no (id) & ~0x3f) >> 4) + (locals_offset >> 3) + disp / 8 - fs;
sc = scAbs;
/* if (as_file)
x (fprintf (as_file,
" # %s is in %ld($fp) == %ld($29)\n", nm,
v, v + fs));*/
}
(void)new_lsym_d (nm,v,/*(isparam(id))?stParam :*/stLocal,sc,dt,findex);
}
else {
exp sn = son (id);
int d = disp;
while (sn != nilexp) {
switch (name(sn)) {
case name_tag: {
disp = d + no (sn);
id = son (sn);
if (isvar (id)) dt = dt->data.ptr.object;
goto again;
}
case reff_tag: {
d += no (sn);
sn = son (sn);
break;
}
case cont_tag: {
sn = son (sn);
break;
}
default:
return;
}
}
}
}
}
void output_diag
PROTO_N ( ( d, proc_no, e ) )
PROTO_T ( diag_info *d X int proc_no X exp e )
{
exp x;
if (d->key == DIAG_INFO_SOURCE) {
sourcemark * s = & d->data.source.beg;
int f = find_file(s->file);
stabd(f, s->line_no.nat_val.small_nat);
return;
}
if (d->key != DIAG_INFO_ID) return;
x = d->data.id_scope.access;
if (isglob(son(x)) || no(son(x))==1) return;
/* can't output global values as local names in dbx
&& not only diag use */
mark_scope(e);
if (props(e) & 0x80) {
stabd(currentfile, currentlno+1); /* don't have proper lineno */
diagbr_open(currentfile);
}
stab_local(d->data.id_scope.nme.ints.chars, d->data.id_scope.typ,
x,0,currentfile);
if (last_param(son(x))) {
stabd(currentfile, currentlno+1); /* don't have proper lineno */
}
return;
}
void output_end_scope
PROTO_N ( ( d,e ) )
PROTO_T ( diag_info *d X exp e )
{
if (d->key == DIAG_INFO_SOURCE) {
sourcemark * s = & d->data.source.end;
int f = find_file(s->file);
int lno = s->line_no.nat_val.small_nat;
stabd(f, (lno==currentlno)?lno+1:lno); /*approx */
return;
}
if (d -> key == DIAG_INFO_ID && props(e) & 0x80) {
diagbr_close(currentfile);
}
}
/*
The following procs are concerned with expressing TDF
types as dbx types. The possible circularity of types and
the vagaries of the type representation contribute to their
complication.
*/
typedef struct {
char *n;
int v;
int st;
int sc;
diag_type s;
} tsym;
static int notsyms = 0;
static int nexttsym = 0;
static tsym * ats = (tsym *) 0;
/*
used to accumulate all the type reprs arising
from shapes in the program by calling addtsym ....
*/
void addtsym
PROTO_N ( ( n,v,st,sc,s ) )
PROTO_T ( char *n X int v X int st X int sc X diag_type s )
{
tsym * a;
if (nexttsym >= notsyms) {
ats = (tsym *) xrealloc ((void *) ats, (size_t)(nexttsym + 100) * sizeof (tsym));
notsyms = nexttsym + 100;
}
a = &ats[nexttsym++];
a -> n = n;
a -> v = v;
a -> st = st;
a -> sc = sc;
a -> s = s;
return;
}
typedef struct {
diag_type sutype;
int symindex;
} shauxt;
static int noshaux = 0;
int nextshaux = 0;
shauxt * shaux = (shauxt *) 0;
/*
used to remember all the indexes into the auxilliary
symbol table for all the shapes in the program
*/
bool eq_sutype
PROTO_N ( ( a,b ) )
PROTO_T ( diag_type a X diag_type b )
{
diag_field_list fa;
diag_field_list fb;
int j;
if (a==b) return 1;
if (a->key != b->key) return 0;
if (a->key != DIAG_TYPE_STRUCT && a->key != DIAG_TYPE_UNION) return 0;
if (strcmp(a->data.t_struct.nme.ints.chars, b->data.t_struct.nme.ints.chars))
return 0;
fa = a->data.t_struct.fields;
fb = b->data.t_struct.fields;
if (fa->lastused != fb->lastused) return 0;
for(j=fa->lastused-1; j>=0; j--) {
diag_field sfa = (fa->array)[j];
diag_field sfb = (fb->array)[j];
if (strcmp(sfa->field_name.ints.chars, sfb->field_name.ints.chars))
return 0;
}
return (bool)eq_shape(a->data.t_struct.tdf_shape,b->data.t_struct.tdf_shape);
}
/*
finds the index into the auxilliary table for type s
*/
int find_aux
PROTO_N ( ( s ) )
PROTO_T ( diag_type s )
{
int i;
for (i = 0; i < nextshaux; i++) {
if (eq_sutype(s, shaux[i].sutype) )
return shaux[i].symindex;
}
return - 1;
}
/*
remembers ind as index into aux table for shape s
*/
static void addaux
PROTO_N ( ( s,ind ) )
PROTO_T ( diag_type s X int ind )
{
shauxt * x;
if (nextshaux >= noshaux) {
shaux = (shauxt *) xrealloc ((void *) shaux,
(size_t)(nextshaux + 10) * sizeof (shauxt));
}
x = &shaux[nextshaux++];
x -> sutype = s;
x -> symindex = ind;
}
static diag_tagdef ** su_diags = (diag_tagdef**)0;
static long no_of_sus = 0;
static long leng_sus = 0;
void OUTPUT_DIAG_TAGS
PROTO_Z ()
{
/*collects structs & unions */
diag_tagdef ** di = unit_ind_diagtags;
long n = unit_no_of_diagtags;
long i;
long il = no_of_sus;
for (i=0; i<n; ++i){
diag_type d = di[i]->d_type;
switch (d -> key){
case DIAG_TYPE_STRUCT:
case DIAG_TYPE_UNION: {
int j;
for(j=0; j < il; j++) {
if (eq_sutype(d, su_diags[j]->d_type)) break;
}
if (j!=il) break;
if (no_of_sus >= leng_sus) {
su_diags = (diag_tagdef**)xrealloc(su_diags,
(size_t)(leng_sus+=20)*sizeof(diag_tagdef*));
}
su_diags[no_of_sus++] = di[i];
break;
}
default: break;
}
}
return;
}
/*
outputs symbol table info for all struct & union in program
*/
void stab_types
PROTO_Z ()
{
int i;
int firsts = get_sym_index (mainfile);
for (i = 0; i < no_of_sus; ++i) {/* treat struct shapes */
int j;
diag_tagdef * sc = su_diags[i];
switch (sc->d_type->key) {
case DIAG_TYPE_STRUCT:
case DIAG_TYPE_UNION: {
diag_field_list fields = sc->d_type->data.t_struct.fields;
shape s = sc->d_type->data.t_struct.tdf_shape;
char * nme = sc->d_type->data.t_struct.nme.ints.chars;
addaux(sc->d_type, nexttsym+firsts);
addtsym(nme, shape_size(s)>>3, stBlock, scInfo, sc->d_type);
for(j=fields->lastused-1; j>=0; j--) {
diag_field sf = (fields->array)[j];
addtsym(sf->field_name.ints.chars, no(sf->where), stMember, scInfo,
sf->field_type);
}
break;
}
default: ;
}
addtsym ("", 0, stEnd, scInfo, (diag_type)0);
}
for (i = 0; i < nexttsym; i++) {/* output accumulated type info */
tsym * t = &ats[i];
(void) new_lsym (t -> n, t -> v, t -> st, t -> sc, t->s, mainfile);
}
for (i = 0; i < unit_diagvar_tab.lastused; ++i) {
/* associated names of types */
diag_descriptor * dd = unit_diagvar_tab.array+i;
if (dd->key == DIAG_TYPEDEF_KEY) {
(void)new_lsym_d(dd->data.typ.nme.ints.chars, 0, stTypedef, scInfo,
dd->data.typ.new_type, mainfile);
}
}
free (ats);
return;
}