void
dt_ecbdesc_release(dtrace_hdl_t *dtp, dtrace_ecbdesc_t *edp)
{
if (--edp->dted_refcnt > 0)
return;
dt_difo_free(dtp, edp->dted_pred.dtpdd_difo);
assert(edp->dted_action == NULL);
dt_free(dtp, edp);
}
void
dt_xlator_destroy(dtrace_hdl_t *dtp, dt_xlator_t *dxp)
{
uint_t i;
dt_node_link_free(&dxp->dx_nodes);
if (dxp->dx_locals != NULL)
dt_idhash_destroy(dxp->dx_locals);
else if (dxp->dx_ident != NULL)
dt_ident_destroy(dxp->dx_ident);
for (i = 0; i < dxp->dx_nmembers; i++)
dt_difo_free(dtp, dxp->dx_membdif[i]);
dt_free(dtp, dxp->dx_membdif);
dt_list_delete(&dtp->dt_xlators, dxp);
dt_free(dtp, dxp);
}
/*
* Pop the topmost PCB from the PCB stack and destroy any data structures that
* are associated with it. If 'err' is non-zero, destroy any intermediate
* state that is left behind as part of a compilation that has failed.
*/
void
dt_pcb_pop(dtrace_hdl_t *dtp, int err)
{
dt_pcb_t *pcb = yypcb;
uint_t i;
assert(pcb != NULL);
assert(pcb == dtp->dt_pcb);
while (pcb->pcb_dstack.ds_next != NULL)
(void) dt_scope_pop();
dt_scope_destroy(&pcb->pcb_dstack);
dt_irlist_destroy(&pcb->pcb_ir);
dt_node_link_free(&pcb->pcb_list);
dt_node_link_free(&pcb->pcb_hold);
if (err != 0) {
dt_xlator_t *dxp, *nxp;
dt_provider_t *pvp, *nvp;
if (pcb->pcb_prog != NULL)
dt_program_destroy(dtp, pcb->pcb_prog);
if (pcb->pcb_stmt != NULL)
dtrace_stmt_destroy(dtp, pcb->pcb_stmt);
if (pcb->pcb_ecbdesc != NULL)
dt_ecbdesc_release(dtp, pcb->pcb_ecbdesc);
for (dxp = dt_list_next(&dtp->dt_xlators); dxp; dxp = nxp) {
nxp = dt_list_next(dxp);
if (dxp->dx_gen == dtp->dt_gen)
dt_xlator_destroy(dtp, dxp);
}
for (pvp = dt_list_next(&dtp->dt_provlist); pvp; pvp = nvp) {
nvp = dt_list_next(pvp);
if (pvp->pv_gen == dtp->dt_gen)
dt_provider_destroy(dtp, pvp);
}
(void) dt_idhash_iter(dtp->dt_aggs, dt_pcb_pop_ident, dtp);
dt_idhash_update(dtp->dt_aggs);
(void) dt_idhash_iter(dtp->dt_globals, dt_pcb_pop_ident, dtp);
dt_idhash_update(dtp->dt_globals);
(void) dt_idhash_iter(dtp->dt_tls, dt_pcb_pop_ident, dtp);
dt_idhash_update(dtp->dt_tls);
(void) ctf_discard(dtp->dt_cdefs->dm_ctfp);
(void) ctf_discard(dtp->dt_ddefs->dm_ctfp);
}
if (pcb->pcb_pragmas != NULL)
dt_idhash_destroy(pcb->pcb_pragmas);
if (pcb->pcb_locals != NULL)
dt_idhash_destroy(pcb->pcb_locals);
if (pcb->pcb_idents != NULL)
dt_idhash_destroy(pcb->pcb_idents);
if (pcb->pcb_inttab != NULL)
dt_inttab_destroy(pcb->pcb_inttab);
if (pcb->pcb_strtab != NULL)
dt_strtab_destroy(pcb->pcb_strtab);
if (pcb->pcb_regs != NULL)
dt_regset_destroy(pcb->pcb_regs);
for (i = 0; i < pcb->pcb_asxreflen; i++)
dt_free(dtp, pcb->pcb_asxrefs[i]);
dt_free(dtp, pcb->pcb_asxrefs);
dt_difo_free(dtp, pcb->pcb_difo);
free(pcb->pcb_filetag);
free(pcb->pcb_sflagv);
dtp->dt_pcb = pcb->pcb_prev;
bzero(pcb, sizeof (dt_pcb_t));
yyinit(dtp->dt_pcb);
}
