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netgen
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Modified netcmp.c "addproxies" routine to not get confused by cells 

with no pins marked with a "(no pins)" placeholder.  Otherwise it
goes into an infinite loop and eats up memory until it crashes.
This commit is contained in:
Tim Edwards 2021-01-21 13:38:44 -05:00
parent d0bae6aff4
commit 62fbd422e2
1 changed files with 23 additions and 15 deletions
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38
base/netcmp.c
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@ -6715,24 +6715,32 @@ struct nlist *addproxies(struct hashlist *p, void *clientdata)
firstpin = ob;
while (tob && (tob->type == PORT || tob->type == UNKNOWN)) {
if (tob->type == UNKNOWN) {
obn = (struct objlist *)CALLOC(1, sizeof(struct objlist));
obn->name = (char *)MALLOC(strlen(firstpin->instance.name)
/* ??? Do not do anything with (no pins) entries */
if (strcmp(tob->name, "proxy(no pins)")) {
obn = (struct objlist *)CALLOC(1, sizeof(struct objlist));
obn->name = (char *)MALLOC(strlen(firstpin->instance.name)
+ strlen(tob->name) + 2);
sprintf(obn->name, "%s/%s", firstpin->instance.name, tob->name);
obn->instance.name = strsave(firstpin->instance.name);
obn->model.class = strsave(tc->name);
obn->type = i++;
obn->node = numnodes++;
obn->next = ob; // Splice into object list
lob->next = obn;
lob = obn;
sprintf(obn->name, "%s/%s", firstpin->instance.name, tob->name);
obn->instance.name = strsave(firstpin->instance.name);
obn->model.class = strsave(tc->name);
obn->type = i++;
obn->node = numnodes++;
obn->next = ob; // Splice into object list
lob->next = obn;
lob = obn;
// Hash the new pin record for "LookupObject()"
HashPtrInstall(obn->name, obn, &(ptr->objdict));
// Hash the new pin record for "LookupObject()"
HashPtrInstall(obn->name, obn, &(ptr->objdict));
if (tob == tc->cell) {
// Rehash the instance in instdict
HashPtrInstall(firstpin->instance.name, firstpin, &(ptr->instdict));
if (tob == tc->cell) {
// Rehash the instance in instdict
HashPtrInstall(firstpin->instance.name, firstpin, &(ptr->instdict));
}
}
else {
lob = ob;
ob->type = i++;
ob = ob->next;
}
}
else if (ob == NULL) {