ref: 02ac617541ca1a7bf82b1615fb5a58235469b5d3
dir: /limbo/sbl.c/
#include "limbo.h"
static char sbltname[Tend] =
{
/* Tnone */ 'n',
/* Tadt */ 'a',
/* Tadtpick */ 'a',
/* Tarray */ 'A',
/* Tbig */ 'B',
/* Tbyte */ 'b',
/* Tchan */ 'C',
/* Treal */ 'f',
/* Tfn */ 'F',
/* Tint */ 'i',
/* Tlist */ 'L',
/* Tmodule */ 'm',
/* Tref */ 'R',
/* Tstring */ 's',
/* Ttuple */ 't',
/* Texception */ 't',
/* Tfix */ 'i',
/* Tpoly */ 'P',
/* Tainit */ '?',
/* Talt */ '?',
/* Tany */ 'N',
/* Tarrow */ '?',
/* Tcase */ '?',
/* Tcasel */ '?',
/* Tcasec */ '?',
/* Tdot */ '?',
/* Terror */ '?',
/* Tgoto */ '?',
/* Tid */ '?',
/* Tiface */ '?',
/* Texcept */ '?',
/* Tinst */ '?',
};
int sbltadtpick = 'p';
static Sym *sfiles;
static Sym *ftail;
static int nsfiles;
static int blockid;
static int lastf;
static int lastline;
static void sbltype(Type*, int);
static void sbldecl(Decl*, int);
static void sblftype(Type*);
static void sblfdecl(Decl*, int);
void
sblmod(Decl *m)
{
Bprint(bsym, "limbo .sbl 2.1\n");
Bprint(bsym, "%s\n", m->sym->name);
blockid = 0;
nsfiles = 0;
sfiles = ftail = nil;
lastf = 0;
lastline = 0;
}
static int
sblfile(char *name)
{
Sym *s;
int i;
i = 0;
for(s = sfiles; s != nil; s = s->next){
if(strcmp(s->name, name) == 0)
return i;
i++;
}
s = allocmem(sizeof(Sym));
s->name = name;
s->next = nil;
if(sfiles == nil)
sfiles = s;
else
ftail->next = s;
ftail = s;
nsfiles = i + 1;
return i;
}
static char *
filename(char *s)
{
char *t;
t = strrchr(s, '/');
if(t != nil)
s = t + 1;
t = strrchr(s, '\\');
if(t != nil)
s = t+1;
t = strrchr(s, ' ');
if(t != nil)
s = t + 1;
return s;
}
void
sblfiles(void)
{
Sym *s;
int i;
for(i = 0; i < nfiles; i++)
files[i]->sbl = sblfile(files[i]->name);
Bprint(bsym, "%d\n", nsfiles);
for(s = sfiles; s != nil; s = s->next)
Bprint(bsym, "%s\n", filename(s->name));
}
static char*
sblsrcconv(char *buf, char *end, Src *src)
{
Fline fl;
File *startf, *stopf;
char *s;
int startl, stopl;
s = buf;
fl = fline(src->start.line);
startf = fl.file;
startl = fl.line;
fl = fline(src->stop.line);
stopf = fl.file;
stopl = fl.line;
if(lastf != startf->sbl)
s = seprint(s, end, "%d:", startf->sbl);
if(lastline != startl)
s = seprint(s, end, "%d.", startl);
s = seprint(s, end, "%d,", src->start.pos);
if(startf->sbl != stopf->sbl)
s = seprint(s, end, "%d:", stopf->sbl);
if(startl != stopl)
s = seprint(s, end, "%d.", stopl);
seprint(s, end, "%d ", src->stop.pos);
lastf = stopf->sbl;
lastline = stopl;
return buf;
}
#define isnilsrc(s) ((s)->start.line == 0 && (s)->stop.line == 0 && (s)->start.pos == 0 && (s)->stop.pos == 0)
#define isnilstopsrc(s) ((s)->stop.line == 0 && (s)->stop.pos == 0)
void
sblinst(Inst *inst, long ninst)
{
Inst *in;
char buf[StrSize];
int *sblblocks, i, b;
Src src;
Bprint(bsym, "%ld\n", ninst);
sblblocks = allocmem(nblocks * sizeof *sblblocks);
for(i = 0; i < nblocks; i++)
sblblocks[i] = -1;
src = nosrc;
for(in = inst; in != nil; in = in->next){
if(in->op == INOOP)
continue;
if(in->src.start.line < 0)
fatal("no file specified for %I", in);
b = sblblocks[in->block];
if(b < 0)
sblblocks[in->block] = b = blockid++;
if(isnilsrc(&in->src))
in->src = src;
else if(isnilstopsrc(&in->src)){ /* how does this happen ? */
in->src.stop = in->src.start;
in->src.stop.pos++;
}
Bprint(bsym, "%s%d\n", sblsrcconv(buf, buf+sizeof(buf), &in->src), b);
src = in->src;
}
free(sblblocks);
}
void
sblty(Decl **tys, int ntys)
{
Decl *d;
int i;
Bprint(bsym, "%d\n", ntys);
for(i = 0; i < ntys; i++){
d = tys[i];
d->ty->sbl = i;
}
for(i = 0; i < ntys; i++){
d = tys[i];
sbltype(d->ty, 1);
}
}
void
sblfn(Decl **fns, int nfns)
{
Decl *f;
int i;
Bprint(bsym, "%d\n", nfns);
for(i = 0; i < nfns; i++){
f = fns[i];
if(ispoly(f))
rmfnptrs(f);
if(f->dot != nil && f->dot->ty->kind == Tadt)
Bprint(bsym, "%ld:%s.%s\n", f->pc->pc, f->dot->sym->name, f->sym->name);
else
Bprint(bsym, "%ld:%s\n", f->pc->pc, f->sym->name);
sbldecl(f->ty->ids, Darg);
sbldecl(f->locals, Dlocal);
sbltype(f->ty->tof, 0);
}
}
void
sblvar(Decl *vars)
{
sbldecl(vars, Dglobal);
}
static int
isvis(Decl *id)
{
if(!tattr[id->ty->kind].vis
|| id->sym == nil
|| id->sym->name == nil /*????*/
|| id->sym->name[0] == '.')
return 0;
if(id->ty == tstring && id->init != nil && id->init->op == Oconst)
return 0;
if(id->src.start.line < 0 || id->src.stop.line < 0)
return 0;
return 1;
}
static void
sbldecl(Decl *ids, int store)
{
Decl *id;
char buf[StrSize];
int n;
n = 0;
for(id = ids; id != nil; id = id->next){
if(id->store != store || !isvis(id))
continue;
n++;
}
Bprint(bsym, "%d\n", n);
for(id = ids; id != nil; id = id->next){
if(id->store != store || !isvis(id))
continue;
Bprint(bsym, "%ld:%s:%s", id->offset, id->sym->name, sblsrcconv(buf, buf+sizeof(buf), &id->src));
sbltype(id->ty, 0);
Bprint(bsym, "\n");
}
}
static void
sbltype(Type *t, int force)
{
Type *lastt;
Decl *tg, *d;
char buf[StrSize];
if(t->kind == Tadtpick)
t = t->decl->dot->ty;
d = t->decl;
if(!force && d != nil && d->ty->sbl >= 0){
Bprint(bsym, "@%d\n", d->ty->sbl);
return;
}
switch(t->kind){
default:
fatal("bad type %T in sbltype", t);
break;
case Tnone:
case Tany:
case Tint:
case Tbig:
case Tbyte:
case Treal:
case Tstring:
case Tfix:
case Tpoly:
Bprint(bsym, "%c", sbltname[t->kind]);
break;
case Tfn:
Bprint(bsym, "%c", sbltname[t->kind]);
sbldecl(t->ids, Darg);
sbltype(t->tof, 0);
break;
case Tarray:
case Tlist:
case Tchan:
case Tref:
Bprint(bsym, "%c", sbltname[t->kind]);
if(t->kind == Tref && t->tof->kind == Tfn){
tattr[Tany].vis = 1;
sbltype(tfnptr, 0);
tattr[Tany].vis = 0;
}
else
sbltype(t->tof, 0);
break;
case Ttuple:
case Texception:
Bprint(bsym, "%c%ld.", sbltname[t->kind], t->size);
sbldecl(t->ids, Dfield);
break;
case Tadt:
if(t->tags != nil)
Bputc(bsym, sbltadtpick);
else
Bputc(bsym, sbltname[t->kind]);
if(d->dot != nil && !isimpmod(d->dot->sym))
Bprint(bsym, "%s->", d->dot->sym->name);
Bprint(bsym, "%s %s%ld\n", d->sym->name, sblsrcconv(buf, buf+sizeof(buf), &d->src), d->ty->size);
sbldecl(t->ids, Dfield);
if(t->tags != nil){
Bprint(bsym, "%d\n", t->decl->tag);
lastt = nil;
for(tg = t->tags; tg != nil; tg = tg->next){
Bprint(bsym, "%s:%s", tg->sym->name, sblsrcconv(buf, buf+sizeof(buf), &tg->src));
if(lastt == tg->ty){
Bputc(bsym, '\n');
}else{
Bprint(bsym, "%ld\n", tg->ty->size);
sbldecl(tg->ty->ids, Dfield);
}
lastt = tg->ty;
}
}
break;
case Tmodule:
Bprint(bsym, "%c%s\n%s", sbltname[t->kind], d->sym->name, sblsrcconv(buf, buf+sizeof(buf), &d->src));
sbldecl(t->ids, Dglobal);
break;
}
}