/* Get redirected or mangled external symbol. */
static const char *clib_extsym(CTState *cts, CType *ct, GCstr *name)
{
if (ct->sib) {
CType *ctf = ctype_get(cts, ct->sib);
if (ctype_isxattrib(ctf->info, CTA_REDIR))
return strdata(gco2str(gcref(ctf->name)));
}
return strdata(name);
}
/* Recursively classify a struct based on its fields. */
static int ccall_classify_struct(CTState *cts, CType *ct, int *rcl, CTSize ofs)
{
if (ct->size > 16) return CCALL_RCL_MEM; /* Too big, gets memory class. */
while (ct->sib) {
CTSize fofs;
ct = ctype_get(cts, ct->sib);
fofs = ofs+ct->size;
if (ctype_isfield(ct->info))
ccall_classify_ct(cts, ctype_rawchild(cts, ct), rcl, fofs);
else if (ctype_isbitfield(ct->info))
rcl[(fofs >= 8)] |= CCALL_RCL_INT; /* NYI: unaligned bitfields? */
else if (ctype_isxattrib(ct->info, CTA_SUBTYPE))
ccall_classify_struct(cts, ctype_rawchild(cts, ct), rcl, fofs);
}
return ((rcl[0]|rcl[1]) & CCALL_RCL_MEM); /* Memory class? */
}
