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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.
*/
#ifndef lint
static char vcid[] = "nil";
#endif /* lint */
/*
symbol.c
This file contains code to generate the alpha symbol table
(the .t file). This code is based on the MIPS translator file
new_symbol.c
*/
/*
$Log: symbol.c,v $
* Revision 1.2 1998/02/04 10:43:32 release
* Changes during testing.
*
* Revision 1.1.1.1 1998/01/17 15:56:01 release
* First version to be checked into rolling release.
*
* Revision 1.4 1995/08/21 08:46:39 john
* Changed include files
*
* Revision 1.3 1995/05/16 10:55:52 john
* Cosmetic changes
*
* Revision 1.2 1995/04/07 11:06:12 john
* Renamed some parameters
*
* Revision 1.1.1.1 1995/03/23 10:39:30 john
* Entered into CVS
*
* Revision 1.4 1995/01/31 14:26:22 john
* Variour portability improvements
*
* Revision 1.3 1995/01/12 15:10:27 john
* Changed error messages
*
*/
#include "config.h"
#include "symtab.h" /* type definitions for translator
produced debugging information
to be incorporated into a .T file */
#include "bstack.h"
#include "makesymtab.h"
#include "xalloc.h"
#include "common_types.h"
#include "diagtypes.h"
#include "expmacs.h"
#include "symbol.h"
#include "type_to_aux.h"
#include "cross_config.h"
extern char diagnose;
#ifndef CROSS_INCLUDE
#include <symconst.h>
#else
#include CROSS_INCLUDE/symconst.h>
#endif
/* Procedures to accumulate symbol table records for MIPS translator
new_lsym
new_lsym_d
new_esym
new_esym_d
and to output the table
output_symtab(name)
by R.R.R. 25/1/91 */
int numfiles;
int numprocs; /* provided by mipstrans in call to init */
DENSETAB *dense_numbers, *densenos;
STRINGS* extstrings, *external_strings;
ESYMS* esymlist, *external_symbols;
pSYMFDR fdrlist, file_desc_table;
LSYMS* local_symbols;
STRINGS* local_strings;
AUXTAB* aux_symbols;
BSTACK* blockstack;
int add_aux PROTO_S ((AUXU,int));
int* file_inds;
int* aux_inds;
int* str_inds;
int* sym_inds;
PROCSYM* proc_isym_inds;
int nosyms = 0;
int stringsize = 0;
int nostrings=0;
int noaux = 0;
int densind = 0;
int esymindex = 0;
int extind=0;
void init_table_space
PROTO_N ( ( noofiles,noprocs ) )
PROTO_T ( int noofiles X int noprocs )
{
int ind=0;
AUXU nilaux;
nilaux.isym=0;
blockstack= (BSTACK*)xcalloc(noofiles,sizeof(BSTACK));
if(noofiles==0) alphafail(NO_DIAGNOSTICS_IN_TDF);
densenos=(DENSETAB*)xcalloc(1,sizeof(DENSETAB));
densenos->num = 0;
densenos->densenolist = (pDNR)xcalloc(DENSETABSIZE,sizeof(DNR));
densenos->moredensenos= (DENSETAB*)0;
dense_numbers=densenos;
extstrings=(STRINGS*)xcalloc(1,sizeof(STRINGS));
extstrings->str=(char*)xcalloc(STRINGTABSIZE,sizeof(char));
extstrings->usage=0;
extstrings->overspill=(STRINGS*)0;
external_strings=extstrings;
esymlist=(ESYMS*)xcalloc(1,sizeof(ESYMS));
esymlist->symlist=(pEXTR)xcalloc(SYMTABSIZE,sizeof(EXTR));
esymlist->noofsyms=0;
esymlist->nextsyms=(ESYMS*)0;
external_symbols=esymlist;
numfiles=noofiles;
numprocs=noprocs;
file_inds =(int*)xcalloc(noofiles,sizeof(int));
aux_inds =(int*)xcalloc(noofiles,sizeof(int));
str_inds =(int*)xcalloc(noofiles,sizeof(int));
sym_inds =(int*)xcalloc(noofiles,sizeof(int));
proc_isym_inds =(PROCSYM*)xcalloc(noprocs,sizeof(PROCSYM));
fdrlist = (pSYMFDR)xcalloc(noofiles,sizeof(SYMFDR));
file_desc_table = fdrlist;
local_symbols = (LSYMS*)xcalloc(noofiles,sizeof(LSYMS));
local_symbols->symlist = (pSYMR)xcalloc(noofiles*SYMTABSIZE,sizeof(SYMR));
local_strings = (STRINGS*)xcalloc(noofiles,sizeof(STRINGS));
local_strings->str = (char*)xcalloc(noofiles*STRINGTABSIZE,sizeof(char));
aux_symbols=(AUXTAB*)xcalloc(noofiles,sizeof(AUXTAB));
aux_symbols->auxinfo=(pAUXU)xcalloc(noofiles*AUXTABSIZE,sizeof(AUXU));
for (ind=0; ind<noofiles;ind++,fdrlist++){
fdrlist->symbols=local_symbols+ind;
fdrlist->filestr=local_strings+ind;
fdrlist->auxtabs=aux_symbols+ind;
fdrlist->proc_count=0;
(local_symbols+ind)->symlist=local_symbols->symlist+ind*SYMTABSIZE;
(local_strings+ind)->str=local_strings->str+ind*STRINGTABSIZE;
(aux_symbols+ind)->auxinfo=aux_symbols->auxinfo+ind*AUXTABSIZE;
add_aux(nilaux,ind); /* for each file add nilaux so no 0 */
}
}
void add_proc
PROTO_N ( ( sympos,filenum ) )
PROTO_T ( int sympos X int filenum )
{
static int symcount=0;
pSYMFDR fdrlist=file_desc_table+filenum;
fdrlist->proc_count+=1;
(proc_isym_inds+symcount)->procsymindex=sympos;
(proc_isym_inds+symcount)->fnum=filenum;
symcount++;
}
/********************* STRING procedures ********************/
int add_string
PROTO_N ( ( str,list ) )
PROTO_T ( char *str X STRINGS *list )
{
int stringind=list->usage;
int length = strlen(str)+1;
while (list->overspill!=0){
list=list->overspill;
stringind+=list->usage;
}
if ((list->usage+length)>STRINGTABSIZE){
list->overspill = (STRINGS*)xcalloc(1,sizeof(STRINGS));
list=list->overspill;
list->str=(char*)xcalloc(STRINGTABSIZE,sizeof(char));
list->usage=length;
strcpy(list->str,str);
}
else{
strcpy(list->str+list->usage,str);
list->usage+=length;
}
return stringind;
}
int add_to_loc_strings
PROTO_N ( ( locstr,index ) )
PROTO_T ( char *locstr X int index )
{
stringsize+=strlen(locstr)+1;
nostrings++;
return(add_string(locstr, local_strings+index));
}
int add_to_ext_strings
PROTO_N ( ( extstr ) )
PROTO_T ( char *extstr )
{
int posind=extind;
add_string(extstr, extstrings);
extind+=strlen(extstr)+1;
return(posind);
}
/****************** DENSE NUMBERS ********************/
int add_dense_no
PROTO_N ( ( rfd,index ) )
PROTO_T ( int rfd X int index )
{
DNR* curr_dense;
DENSETAB* denseptr= densenos;
while (denseptr->moredensenos){
denseptr=denseptr->moredensenos;
}
if(denseptr->num==DENSETABSIZE){
denseptr->moredensenos = (DENSETAB*)xcalloc(1,sizeof(DENSETAB));
denseptr=denseptr->moredensenos;
denseptr->num = 0;
denseptr->densenolist = (pDNR)xcalloc(DENSETABSIZE,sizeof(DNR));
denseptr->moredensenos = (DENSETAB*)0;
}
curr_dense=(denseptr->densenolist)+denseptr->num;
curr_dense->rfd = rfd;
curr_dense->index = index;
denseptr->num+=1;
densind++;
return (densind-1);
}
DNR * get_dense_ptr
PROTO_N ( ( densind ) )
PROTO_T ( int densind )
{
DENSETAB* denseptr = densenos;
int densecount=denseptr->num;
while (densecount<=densind){
denseptr=denseptr->moredensenos;
densecount+=denseptr->num;
}
return(denseptr->densenolist+(denseptr->num-(densecount-densind)));
}
/******************** SYMBOL PROCEDURES ********************/
int get_sym_index
PROTO_N ( ( ind ) )
PROTO_T ( int ind )
{
LSYMS* lsymlist=local_symbols+ind;
int lsymindex = lsymlist->noofsyms;
while (lsymlist->nextsyms!=0){
lsymlist=lsymlist->nextsyms;
lsymindex+=lsymlist->noofsyms;
}
return (lsymindex);
}
SYMR * get_sym_ptr
PROTO_N ( ( ind,symind ) )
PROTO_T ( int ind X int symind )
{
LSYMS* lsymlist=local_symbols+ind;
int symcount=lsymlist->noofsyms;
while (symcount<=symind){
lsymlist=lsymlist->nextsyms;
symcount+=lsymlist->noofsyms;
}
return(lsymlist->symlist+(lsymlist->noofsyms-(symcount-symind)));
}
int add_lsym
PROTO_N ( ( ind,newsym ) )
PROTO_T ( int ind X SYMR *newsym )
{
LSYMS* lsymlist=local_symbols+ind;
int lsymindex = lsymlist->noofsyms;
nosyms++;
while (lsymlist->nextsyms!=0){
lsymlist=lsymlist->nextsyms;
lsymindex+=lsymlist->noofsyms;
}
if (lsymlist->noofsyms==SYMTABSIZE){
lsymlist->nextsyms=(LSYMS*)xcalloc(1,sizeof(LSYMS));
lsymlist=lsymlist->nextsyms;
lsymlist->symlist=(pSYMR)xcalloc(SYMTABSIZE,sizeof(SYMR));
lsymlist->noofsyms=0;
lsymlist->nextsyms=(LSYMS*)0;
}
*(lsymlist->symlist+lsymlist->noofsyms)=(*newsym);
lsymlist->noofsyms += 1;
return (lsymindex);
}
int add_esym
PROTO_N ( ( ind,newsym ) )
PROTO_T ( int ind X SYMR *newsym )
{
if (esymlist->noofsyms==SYMTABSIZE){
esymlist->nextsyms=(ESYMS*)xcalloc(1,sizeof(ESYMS));
esymlist=esymlist->nextsyms;
esymlist->symlist=(pEXTR)xcalloc(SYMTABSIZE,sizeof(EXTR));
esymlist->noofsyms=0;
esymlist->nextsyms=(ESYMS*)0;
}
(esymlist->symlist+esymlist->noofsyms)->ifd = ind;
(esymlist->symlist+esymlist->noofsyms)->asym=(*newsym);
esymlist->noofsyms += 1;
esymindex++;
return(esymindex-1);
}
AUXU* get_aux_ptr PROTO_S ((int, int));
int new_lsym
PROTO_N ( ( chars,value,symtype,symclass,s,filenum ) )
PROTO_T ( char *chars X int value X int symtype X int symclass X diag_type s X int filenum )
{
SYMR newsym;
AUXU nilaux;
int strind, symindex;
nilaux.isym=0;
symindex = get_sym_index(filenum);
newsym.value = value;
newsym.st = symtype;
newsym.sc = symclass;
/* do the following as a switch statment */
if (symtype == stEnd){
SYMSTR symstrind;
int isymstart;
symstrind = pop(blockstack+filenum);
isymstart = symstrind.sym;
if (symstrind.str>0)
{newsym.iss = symstrind.str;}
else {newsym.iss = 0 ;}
if (isymstart<0){
newsym.index=(-isymstart);
get_aux_ptr(filenum,
get_sym_ptr(filenum, -isymstart)->index)->isym=symindex+1;
}
else{
get_sym_ptr(filenum, isymstart)->index=symindex+1;
newsym.index=isymstart;
}
/* (((local_symbols + filenum)->symlist)+newsym.index)->index = symindex+1; */
}
else if (symtype == stFile){
add_aux(nilaux,filenum);
strind=add_to_loc_strings(chars,filenum);
newsym.iss = strind;
push(symindex, strind, blockstack+filenum);
/* newsym.index filled in later by stEnd */
}
else if (symtype == stBlock){
if (chars){strind=add_to_loc_strings(chars,filenum);}
else {strind = 0;}
push(symindex, strind, blockstack+filenum);
newsym.iss = strind;
/* newsym.index filled in later by stEnd */
}
else if (symtype == stLabel /*|| symtype == stMember and enum???*/ ){
newsym.index = 0;
newsym.iss = add_to_loc_strings(chars,filenum);
}
else if (symtype==stProc){
DNR* procdense=get_dense_ptr(value);
strind=add_to_loc_strings(chars,filenum);
newsym.value=0; /* not needed now */
/* add esym but with lsymindex as index not aux or isymMac */
newsym.iss = add_to_ext_strings(chars);
newsym.index=symindex;
procdense->rfd=0x7fffffff;
procdense->index=add_esym(filenum, &newsym);
newsym.iss=strind;
newsym.index=add_aux(nilaux,filenum);
push(-symindex, strind, blockstack+filenum);
/*AUX to be filled in at stEnd */
add_proc(symindex,filenum); /* all are scText */
add_aux(nilaux,filenum); /* add nil type !! */
}
else if (symtype==stStaticProc) {
DNR* procdense=get_dense_ptr(value);
strind=add_to_loc_strings(chars,filenum);
newsym.iss=strind;
newsym.value = 0; /* not needed now */
/* add esym but with lsymindex as index not aux or isymMac */
procdense->rfd=filenum;
procdense->index=symindex;
newsym.index=add_aux(nilaux,filenum);
push(-symindex, strind, blockstack+filenum);
add_proc(symindex, filenum);
add_aux(nilaux,filenum); /* add nil type !! */
}
else if (!diagnose ){
newsym.index = 1048575;
newsym.iss = add_to_loc_strings(chars,filenum);
}
else{
newsym.iss = add_to_loc_strings(chars,filenum);
newsym.index = add_type_to_aux(s, filenum);
}
return(add_lsym (filenum, &newsym));
}
int new_lsym_d
PROTO_N ( ( chars,value,symtype,symclass,s,filenum ) )
PROTO_T ( char *chars X int value X int symtype X int symclass X diag_type s X int filenum )
{
return(add_dense_no(filenum,new_lsym (chars, value, symtype, symclass,s,
filenum)));
}
int new_esym
PROTO_N ( ( chars,value,symtype,symclass,s,filenum ) )
PROTO_T ( char *chars X int value X int symtype X int symclass X diag_type s X int filenum )
{
SYMR newsym;
int strind=add_to_ext_strings(chars);
newsym.iss = strind;
newsym.value = value;
newsym.st = symtype;
newsym.reserved = 0;
newsym.sc = symclass;
if (((symtype==stProc) && (symclass==scNil ||symclass==scUndefined))
|| (!diagnose)){
/* no diagnostics */
newsym.index=1048575;
newsym.value=0;
}
else{
newsym.index=add_type_to_aux(s,filenum);
}
return add_esym (filenum, &newsym);
}
int new_esym_d
PROTO_N ( ( chars,value,symtype,symclass,s,filenum ) )
PROTO_T ( char *chars X int value X int symtype X int symclass X diag_type s X int filenum )
{
return(add_dense_no(0x7fffffff,new_esym(chars, value, symtype, symclass, s
, filenum)));
}
/********************* Auxillary information ********************/
AUXU * get_aux_ptr
PROTO_N ( ( index,auxind ) )
PROTO_T ( int index X int auxind )
{
AUXTAB* auxdata;
int auxcount;
auxdata=aux_symbols+index;
auxcount=auxdata->num;
while (auxcount<auxind){
auxdata=auxdata->moreaux;
auxcount+=auxdata->num;
}
return(auxdata->auxinfo+(auxdata->num-(auxcount-auxind)));
}
int add_aux
PROTO_N ( ( auxent,index ) )
PROTO_T ( AUXU auxent X int index )
{
AUXTAB* auxdata;
int auxind;
noaux++;
auxdata=aux_symbols+index;
auxind=auxdata->num;
while (auxdata->moreaux!=0){
auxdata=auxdata->moreaux;
auxind+=auxdata->num;
}
if (auxdata->num==AUXTABSIZE){
auxdata->moreaux=(AUXTAB*)xcalloc(1,sizeof(AUXTAB));
auxdata=auxdata->moreaux;
auxdata->auxinfo=(pAUXU)xcalloc(AUXTABSIZE,sizeof(AUXU));
auxdata->moreaux=(AUXTAB*)0;
auxdata->num=0;
}
*((auxdata->auxinfo)+auxdata->num) = auxent;
auxdata->num+=1;
auxind++;
return (auxind-1);
}
int add_st_aux
PROTO_N ( ( ind ) )
PROTO_T ( int ind )
{
AUXU straux;
AUXU maxaux;
int indaux;
maxaux.count=0xffffffff;
straux.ti.bt=btStruct;
indaux=add_aux(straux, ind);
add_aux(maxaux, ind);
add_aux(maxaux, ind);
return indaux;
}
int add_un_aux
PROTO_N ( ( ind ) )
PROTO_T ( int ind )
{
AUXU uniaux;
AUXU maxaux;
int indaux;
maxaux.count=0xffffffff;
uniaux.ti.bt=btUnion;
indaux=add_aux(uniaux, ind);
add_aux(maxaux, ind);
add_aux(maxaux, ind);
return indaux;
}
void output_symtab
PROTO_N ( ( symfilename ) )
PROTO_T ( char *symfilename )
{
/* end all the files */
int i;
for (i=0;i<numfiles;i++){ /* might need the iss */
new_lsym("",0,stEnd,scText,(diag_type)0,i);
}
makesymtab(external_strings, external_symbols, dense_numbers,
file_desc_table, numfiles, symfilename, esymindex, nosyms,
extind, stringsize, noaux, densind, proc_isym_inds, numprocs);
return;
}