static const char *
ref_to_str(uint_t name, const ctf_header_t *hp, const ctf_data_t *cd)
{
size_t offset = CTF_NAME_OFFSET(name);
const char *s = cd->cd_ctfdata + hp->cth_stroff + offset;
if (CTF_NAME_STID(name) != CTF_STRTAB_0)
return ("<< ??? - name in external strtab >>");
if (offset >= hp->cth_strlen)
return ("<< ??? - name exceeds strlab len >>");
if (hp->cth_stroff + offset >= cd->cd_ctflen)
return ("<< ??? - file truncated >>");
if (s[0] == '\0')
return ("(anon)");
return (s);
}
static void
resurrect_types(ctf_header_t *h, tdata_t *td, tdesc_t **tdarr, int tdsize,
caddr_t ctfdata, int maxid)
{
caddr_t buf = ctfdata + h->cth_typeoff;
size_t bufsz = h->cth_stroff - h->cth_typeoff;
caddr_t sbuf = ctfdata + h->cth_stroff;
caddr_t dptr = buf;
tdesc_t *tdp;
uint_t data;
uint_t encoding;
size_t size, increment;
int tcnt;
int iicnt = 0;
tid_t tid, argid;
int kind, vlen;
int i;
elist_t **epp;
mlist_t **mpp;
intr_t *ip;
ctf_type_t *ctt;
ctf_array_t *cta;
ctf_enum_t *cte;
/*
* A maxid of zero indicates a request to resurrect all types, so reset
* maxid to the maximum type id.
*/
if (maxid == 0)
maxid = CTF_MAX_TYPE;
for (dptr = buf, tcnt = 0, tid = 1; dptr < buf + bufsz; tcnt++, tid++) {
if (tid > maxid)
break;
if (tid >= tdsize)
parseterminate("Reference to invalid type %d", tid);
void *v = (void *) dptr;
ctt = v;
get_ctt_size(ctt, &size, &increment);
dptr += increment;
tdp = tdarr[tid];
if (CTF_NAME_STID(ctt->ctt_name) != CTF_STRTAB_0)
parseterminate(
"Unable to cope with non-zero strtab id");
if (CTF_NAME_OFFSET(ctt->ctt_name) != 0) {
tdp->t_name =
xstrdup(sbuf + CTF_NAME_OFFSET(ctt->ctt_name));
} else
tdp->t_name = NULL;
kind = CTF_INFO_KIND(ctt->ctt_info);
vlen = CTF_INFO_VLEN(ctt->ctt_info);
switch (kind) {
case CTF_K_INTEGER:
tdp->t_type = INTRINSIC;
tdp->t_size = size;
v = (void *) dptr;
data = *((uint_t *)v);
dptr += sizeof (uint_t);
encoding = CTF_INT_ENCODING(data);
ip = xmalloc(sizeof (intr_t));
ip->intr_type = INTR_INT;
ip->intr_signed = (encoding & CTF_INT_SIGNED) ? 1 : 0;
if (encoding & CTF_INT_CHAR)
ip->intr_iformat = 'c';
else if (encoding & CTF_INT_BOOL)
ip->intr_iformat = 'b';
else if (encoding & CTF_INT_VARARGS)
ip->intr_iformat = 'v';
else
ip->intr_iformat = '\0';
ip->intr_offset = CTF_INT_OFFSET(data);
ip->intr_nbits = CTF_INT_BITS(data);
tdp->t_intr = ip;
break;
case CTF_K_FLOAT:
tdp->t_type = INTRINSIC;
tdp->t_size = size;
v = (void *) dptr;
data = *((uint_t *)v);
dptr += sizeof (uint_t);
ip = xcalloc(sizeof (intr_t));
ip->intr_type = INTR_REAL;
ip->intr_fformat = CTF_FP_ENCODING(data);
ip->intr_offset = CTF_FP_OFFSET(data);
ip->intr_nbits = CTF_FP_BITS(data);
tdp->t_intr = ip;
break;
case CTF_K_POINTER:
tdp->t_type = POINTER;
tdp->t_tdesc = tdarr[ctt->ctt_type];
break;
case CTF_K_ARRAY:
tdp->t_type = ARRAY;
tdp->t_size = size;
v = (void *) dptr;
cta = v;
dptr += sizeof (ctf_array_t);
tdp->t_ardef = xmalloc(sizeof (ardef_t));
tdp->t_ardef->ad_contents = tdarr[cta->cta_contents];
tdp->t_ardef->ad_idxtype = tdarr[cta->cta_index];
tdp->t_ardef->ad_nelems = cta->cta_nelems;
break;
case CTF_K_STRUCT:
case CTF_K_UNION:
tdp->t_type = (kind == CTF_K_STRUCT ? STRUCT : UNION);
tdp->t_size = size;
if (size < CTF_LSTRUCT_THRESH) {
for (i = 0, mpp = &tdp->t_members; i < vlen;
i++, mpp = &((*mpp)->ml_next)) {
v = (void *) dptr;
ctf_member_t *ctm = v;
dptr += sizeof (ctf_member_t);
*mpp = xmalloc(sizeof (mlist_t));
(*mpp)->ml_name = xstrdup(sbuf +
ctm->ctm_name);
(*mpp)->ml_type = tdarr[ctm->ctm_type];
(*mpp)->ml_offset = ctm->ctm_offset;
(*mpp)->ml_size = 0;
if (ctm->ctm_type > ntypes) {
parseterminate("Invalid member type ctm_type=%d",
ctm->ctm_type);
}
}
} else {
for (i = 0, mpp = &tdp->t_members; i < vlen;
i++, mpp = &((*mpp)->ml_next)) {
v = (void *) dptr;
ctf_lmember_t *ctlm = v;
dptr += sizeof (ctf_lmember_t);
*mpp = xmalloc(sizeof (mlist_t));
(*mpp)->ml_name = xstrdup(sbuf +
ctlm->ctlm_name);
(*mpp)->ml_type =
tdarr[ctlm->ctlm_type];
(*mpp)->ml_offset =
(int)CTF_LMEM_OFFSET(ctlm);
(*mpp)->ml_size = 0;
if (ctlm->ctlm_type > ntypes) {
parseterminate("Invalid lmember type ctlm_type=%d",
ctlm->ctlm_type);
}
}
}
*mpp = NULL;
break;
case CTF_K_ENUM:
tdp->t_type = ENUM;
tdp->t_size = size;
for (i = 0, epp = &tdp->t_emem; i < vlen;
i++, epp = &((*epp)->el_next)) {
v = (void *) dptr;
cte = v;
dptr += sizeof (ctf_enum_t);
*epp = xmalloc(sizeof (elist_t));
(*epp)->el_name = xstrdup(sbuf + cte->cte_name);
(*epp)->el_number = cte->cte_value;
}
*epp = NULL;
break;
case CTF_K_FORWARD:
tdp->t_type = FORWARD;
list_add(&td->td_fwdlist, tdp);
break;
case CTF_K_TYPEDEF:
tdp->t_type = TYPEDEF;
tdp->t_tdesc = tdarr[ctt->ctt_type];
break;
case CTF_K_VOLATILE:
tdp->t_type = VOLATILE;
tdp->t_tdesc = tdarr[ctt->ctt_type];
break;
case CTF_K_CONST:
tdp->t_type = CONST;
tdp->t_tdesc = tdarr[ctt->ctt_type];
break;
case CTF_K_FUNCTION:
tdp->t_type = FUNCTION;
tdp->t_fndef = xcalloc(sizeof (fndef_t));
tdp->t_fndef->fn_ret = tdarr[ctt->ctt_type];
v = (void *) (dptr + (sizeof (ushort_t) * (vlen - 1)));
if (vlen > 0 && *(ushort_t *)v == 0)
tdp->t_fndef->fn_vargs = 1;
tdp->t_fndef->fn_nargs = vlen - tdp->t_fndef->fn_vargs;
tdp->t_fndef->fn_args = xcalloc(sizeof (tdesc_t) *
vlen - tdp->t_fndef->fn_vargs);
for (i = 0; i < vlen; i++) {
v = (void *) dptr;
argid = *(ushort_t *)v;
dptr += sizeof (ushort_t);
if (argid != 0)
tdp->t_fndef->fn_args[i] = tdarr[argid];
}
if (vlen & 1)
dptr += sizeof (ushort_t);
break;
case CTF_K_RESTRICT:
tdp->t_type = RESTRICT;
tdp->t_tdesc = tdarr[ctt->ctt_type];
break;
case CTF_K_UNKNOWN:
break;
default:
warning("Can't parse unknown CTF type %d\n", kind);
}
if (CTF_INFO_ISROOT(ctt->ctt_info)) {
iidesc_t *ii = iidesc_new(tdp->t_name);
if (tdp->t_type == STRUCT || tdp->t_type == UNION ||
tdp->t_type == ENUM)
ii->ii_type = II_SOU;
else
ii->ii_type = II_TYPE;
ii->ii_dtype = tdp;
hash_add(td->td_iihash, ii);
iicnt++;
}
debug(3, "Resurrected %d %stype %s (%d)\n", tdp->t_type,
(CTF_INFO_ISROOT(ctt->ctt_info) ? "root " : ""),
tdesc_name(tdp), tdp->t_id);
}
debug(3, "Resurrected %d types (%d were roots)\n", tcnt, iicnt);
}
