/*
* Push a structure on stack as argument.
* the scratch registers are already free here
*/
static void
starg(NODE *p)
{
#if defined(MACHOABI)
printf(" subl $%d,%%esp\n", p->n_stsize);
printf(" subl $4,%%esp\n");
printf(" pushl $%d\n", p->n_stsize);
expand(p, 0, " pushl AL\n");
expand(p, 0, " leal 12(%esp),A1\n");
expand(p, 0, " pushl A1\n");
if (kflag) {
printf(" call L%s$stub\n", EXPREFIX "memcpy");
addstub(&stublist, EXPREFIX "memcpy");
} else {
printf(" call %s\n", EXPREFIX "memcpy");
}
printf(" addl $16,%%esp\n");
#else
NODE *q = p->n_left;
printf(" subl $%d,%%esp\n", (p->n_stsize + 3) & ~3);
p->n_left = mklnode(OREG, 0, ESP, INT);
zzzcode(p, 'Q');
tfree(p->n_left);
p->n_left = q;
#endif
}
/*
* Create a reference for an extern variable.
*/
static P1ND *
picext(P1ND *p)
{
struct attr *ap;
#if defined(ELFABI)
P1ND *q, *r;
struct symtab *sp;
char *name;
q = tempnode(gotnr, PTR|VOID, 0, 0);
name = getexname(p->n_sp);
#ifdef GCC_COMPAT
if ((ap = attr_find(p->n_sp->sap, GCC_ATYP_VISIBILITY)) &&
strcmp(ap->sarg(0), "hidden") == 0) {
/* For hidden vars use GOTOFF */
sp = picsymtab("", name, "@GOTOFF");
r = xbcon(0, sp, INT);
q = buildtree(PLUS, q, r);
q = block(UMUL, q, 0, p->n_type, p->n_df, p->n_ap);
q->n_sp = p->n_sp; /* for init */
p1nfree(p);
return q;
}
#endif
sp = picsymtab("", name, "@GOT");
#ifdef GCC_COMPAT
if (attr_find(p->n_sp->sap, GCC_ATYP_STDCALL) != NULL)
p->n_sp->sflags |= SSTDCALL;
#endif
sp->sflags = p->n_sp->sflags & SSTDCALL;
sp->sap = attr_add(p->n_sp->sap, sp->sap);
r = xbcon(0, sp, INT);
q = buildtree(PLUS, q, r);
q = block(UMUL, q, 0, PTR|VOID, 0, 0);
q = block(UMUL, q, 0, p->n_type, p->n_df, p->n_ap);
q->n_sp = p->n_sp; /* for init */
p1nfree(p);
return q;
#elif defined(MACHOABI)
P1ND *q, *r;
struct symtab *sp;
char buf2[256], *name, *pspn;
name = getsoname(cftnsp);
pspn = getexname(p->n_sp);
if (p->n_sp->sclass == EXTDEF) {
snprintf(buf2, 256, "-L%s$pb", name);
sp = picsymtab("", pspn, buf2);
} else {
snprintf(buf2, 256, "$non_lazy_ptr-L%s$pb", name);
sp = picsymtab("L", pspn, buf2);
addstub(&nlplist, pspn);
}
sp->stype = p->n_sp->stype;
q = tempnode(gotnr, PTR+VOID, 0, 0);
r = xbcon(0, sp, INT);
q = buildtree(PLUS, q, r);
if (p->n_sp->sclass != EXTDEF)
q = block(UMUL, q, 0, PTR+VOID, 0, 0);
q = block(UMUL, q, 0, p->n_type, p->n_df, p->n_ap);
q->n_sp = p->n_sp; /* for init */
p1nfree(p);
return q;
#else /* defined(PECOFFABI) || defined(AOUTABI) */
return p;
#endif
}