/**********************************
* We put out an external definition.
*/
void out_extdef(symbol *s)
{
pstate.STflags |= PFLextdef;
if (//config.flags2 & CFG2phgen ||
(config.flags2 & (CFG2phauto | CFG2phautoy) &&
!(pstate.STflags & (PFLhxwrote | PFLhxdone)))
)
synerr(EM_data_in_pch,prettyident(s)); // data or code in precompiled header
}
void cv8_outsym(Symbol *s)
{
//printf("cv8_outsym(s = '%s')\n", s->Sident);
//type_print(s->Stype);
//symbol_print(s);
if (s->Sflags & SFLnodebug)
return;
idx_t typidx = cv_typidx(s->Stype);
//printf("typidx = %x\n", typidx);
const char *id = s->prettyIdent ? s->prettyIdent : prettyident(s);
size_t len = strlen(id);
if(len > CV8_MAX_SYMBOL_LENGTH)
len = CV8_MAX_SYMBOL_LENGTH;
F1_Fixups f1f;
Outbuffer *buf = currentfuncdata.f1buf;
unsigned sr;
unsigned base;
switch (s->Sclass)
{
case SCparameter:
case SCregpar:
case SCshadowreg:
if (s->Sfl == FLreg)
{
s->Sfl = FLpara;
cv8_outsym(s);
s->Sfl = FLreg;
goto case_register;
}
base = Para.size - BPoff; // cancel out add of BPoff
goto L1;
case SCauto:
if (s->Sfl == FLreg)
goto case_register;
case_auto:
base = Auto.size;
L1:
#if 1
// Register relative addressing
buf->reserve(2 + 2 + 4 + 4 + 2 + len + 1);
buf->writeWordn( 2 + 4 + 4 + 2 + len + 1);
buf->writeWordn(0x1111);
buf->write32(s->Soffset + base + BPoff);
buf->write32(typidx);
buf->writeWordn(I64 ? 334 : 22); // relative to RBP/EBP
cv8_writename(buf, id, len);
buf->writeByte(0);
#else
// This is supposed to work, implicit BP relative addressing, but it does not
buf->reserve(2 + 2 + 4 + 4 + len + 1);
buf->writeWordn( 2 + 4 + 4 + len + 1);
buf->writeWordn(S_BPREL_V3);
buf->write32(s->Soffset + base + BPoff);
buf->write32(typidx);
cv8_writename(buf, id, len);
buf->writeByte(0);
#endif
break;
case SCbprel:
base = -BPoff;
goto L1;
case SCfastpar:
if (s->Sfl != FLreg)
{ base = Fast.size;
goto L1;
}
goto L2;
case SCregister:
if (s->Sfl != FLreg)
goto case_auto;
case SCpseudo:
case_register:
L2:
buf->reserve(2 + 2 + 4 + 2 + len + 1);
buf->writeWordn( 2 + 4 + 2 + len + 1);
buf->writeWordn(S_REGISTER_V3);
buf->write32(typidx);
buf->writeWordn(cv8_regnum(s));
cv8_writename(buf, id, len);
buf->writeByte(0);
break;
case SCextern:
break;
case SCstatic:
case SClocstat:
sr = S_LDATA_V3;
goto Ldata;
case SCglobal:
case SCcomdat:
case SCcomdef:
sr = S_GDATA_V3;
Ldata:
//return;
/*
* 2 length (not including these 2 bytes)
* 2 S_GDATA_V2
* 4 typidx
* 6 ref to symbol
* n 0 terminated name string
*/
if (s->ty() & mTYthread) // thread local storage
sr = (sr == S_GDATA_V3) ? 0x1113 : 0x1112;
buf->reserve(2 + 2 + 4 + 6 + len + 1);
buf->writeWordn(2 + 4 + 6 + len + 1);
buf->writeWordn(sr);
buf->write32(typidx);
f1f.s = s;
f1f.offset = buf->size();
F1fixup->write(&f1f, sizeof(f1f));
buf->write32(0);
buf->writeWordn(0);
cv8_writename(buf, id, len);
buf->writeByte(0);
break;
default:
break;
}
}
void cv8_func_term(Symbol *sfunc)
{
//printf("cv8_func_term(%s)\n", sfunc->Sident);
assert(currentfuncdata.sfunc == sfunc);
currentfuncdata.section_length = retoffset + retsize;
funcdata->write(¤tfuncdata, sizeof(currentfuncdata));
// Write function symbol
assert(tyfunc(sfunc->ty()));
idx_t typidx;
func_t* fn = sfunc->Sfunc;
if(fn->Fclass)
{
// generate member function type info
// it would be nicer if this could be in cv4_typidx, but the function info is not available there
unsigned nparam;
unsigned char call = cv4_callconv(sfunc->Stype);
idx_t paramidx = cv4_arglist(sfunc->Stype,&nparam);
unsigned next = cv4_typidx(sfunc->Stype->Tnext);
type* classtype = (type*)fn->Fclass;
unsigned classidx = cv4_typidx(classtype);
type *tp = type_allocn(TYnptr, classtype);
unsigned thisidx = cv4_typidx(tp); // TODO
debtyp_t *d = debtyp_alloc(2 + 4 + 4 + 4 + 1 + 1 + 2 + 4 + 4);
TOWORD(d->data,LF_MFUNCTION_V2);
TOLONG(d->data + 2,next); // return type
TOLONG(d->data + 6,classidx); // class type
TOLONG(d->data + 10,thisidx); // this type
d->data[14] = call;
d->data[15] = 0; // reserved
TOWORD(d->data + 16,nparam);
TOLONG(d->data + 18,paramidx);
TOLONG(d->data + 22,0); // this adjust
typidx = cv_debtyp(d);
}
else
typidx = cv_typidx(sfunc->Stype);
const char *id = sfunc->prettyIdent ? sfunc->prettyIdent : prettyident(sfunc);
size_t len = strlen(id);
if(len > CV8_MAX_SYMBOL_LENGTH)
len = CV8_MAX_SYMBOL_LENGTH;
/*
* 2 length (not including these 2 bytes)
* 2 S_GPROC_V3
* 4 parent
* 4 pend
* 4 pnext
* 4 size of function
* 4 size of function prolog
* 4 offset to function epilog
* 4 type index
* 6 seg:offset of function start
* 1 flags
* n 0 terminated name string
*/
Outbuffer *buf = currentfuncdata.f1buf;
buf->reserve(2 + 2 + 4 * 7 + 6 + 1 + len + 1);
buf->writeWordn( 2 + 4 * 7 + 6 + 1 + len + 1);
buf->writeWordn(sfunc->Sclass == SCstatic ? S_LPROC_V3 : S_GPROC_V3);
buf->write32(0); // parent
buf->write32(0); // pend
buf->write32(0); // pnext
buf->write32(currentfuncdata.section_length); // size of function
buf->write32(startoffset); // size of prolog
buf->write32(retoffset); // offset to epilog
buf->write32(typidx);
F1_Fixups f1f;
f1f.s = sfunc;
f1f.offset = buf->size();
currentfuncdata.f1fixup->write(&f1f, sizeof(f1f));
buf->write32(0);
buf->writeWordn(0);
buf->writeByte(0);
buf->writen(id, len);
buf->writeByte(0);
// Write local symbol table
bool endarg = false;
for (SYMIDX si = 0; si < globsym.top; si++)
{ //printf("globsym.tab[%d] = %p\n",si,globsym.tab[si]);
symbol *sa = globsym.tab[si];
if (endarg == false &&
sa->Sclass != SCparameter &&
sa->Sclass != SCfastpar &&
sa->Sclass != SCshadowreg)
{
buf->writeWord(2);
buf->writeWord(S_ENDARG);
endarg = true;
}
cv8_outsym(sa);
}
/* Put out function return record S_RETURN
* (VC doesn't, so we won't bother, either.)
*/
// Write function end symbol
buf->writeWord(2);
buf->writeWord(S_END);
currentfuncdata.f1buf = F1_buf;
currentfuncdata.f1fixup = F1fixup;
}
targ_size_t type_size(type *t)
{ targ_size_t s;
unsigned long u;
tym_t tyb;
type_debug(t);
tyb = tybasic(t->Tty);
#ifdef DEBUG
if (tyb >= TYMAX)
/*type_print(t),*/
dbg_printf("tyb = x%lx\n",tyb);
#endif
assert(tyb < TYMAX);
s = tysize[tyb];
if (s == (targ_size_t) -1)
{
switch (tyb)
{
// in case program plays games with function pointers
case TYffunc:
case TYfpfunc:
#if TX86
case TYnfunc: /* in case program plays games with function pointers */
case TYhfunc:
case TYnpfunc:
case TYnsfunc:
case TYfsfunc:
case TYf16func:
case TYifunc:
case TYjfunc:
#endif
#if SCPP
if (ANSI)
synerr(EM_unknown_size,"function"); /* size of function is not known */
#endif
s = 1;
break;
case TYarray:
if (t->Tflags & TFsizeunknown)
{
#if SCPP
synerr(EM_unknown_size,"array"); /* size of array is unknown */
#endif
t->Tflags &= ~TFsizeunknown;
}
if (t->Tflags & TFvla)
{
s = tysize[pointertype];
break;
}
s = type_size(t->Tnext);
u = t->Tdim * (unsigned long) s;
#if TX86 && SCPP
type_chksize(u);
#endif
s = u;
break;
case TYstruct:
t = t->Ttag->Stype; /* find main instance */
/* (for const struct X) */
if (t->Tflags & TFsizeunknown)
{
#if SCPP
template_instantiate_forward(t->Ttag);
if (t->Tflags & TFsizeunknown)
synerr(EM_unknown_size,t->Tty & TYstruct ? prettyident(t->Ttag) : "struct");
t->Tflags &= ~TFsizeunknown;
#endif
}
assert(t->Ttag);
s = t->Ttag->Sstruct->Sstructsize;
break;
#if SCPP
case TYenum:
if (t->Ttag->Senum->SEflags & SENforward)
synerr(EM_unknown_size, prettyident(t->Ttag));
s = type_size(t->Tnext);
break;
#endif
case TYvoid:
#if SCPP && TARGET_WINDOS // GNUC allows it, so we will, too
synerr(EM_void_novalue); // voids have no value
#endif
s = 1;
break;
#if SCPP
case TYref:
case TYmemptr:
case TYvtshape:
s = tysize(tym_conv(t));
break;
case TYident:
synerr(EM_unknown_size, t->Tident);
s = 1;
break;
#endif
#if MARS
case TYref:
s = tysize(TYnptr);
break;
#endif
default:
#ifdef DEBUG
WRTYxx(t->Tty);
#endif
assert(0);
}
}
return s;
}
