X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=libctf%2Fctf-hash.c;h=71c1f8e4e21e2229de4dcc163bd9d71c0ad25fea;hb=348fe36b1d64f12c60e08f6313520b3191663063;hp=3512d22a3476ce42de4752cd7e35a123b86c4fc3;hpb=d851ecd373a3764581372b10be5b74c9ee98ae08;p=deliverable%2Fbinutils-gdb.git

diff --git a/libctf/ctf-hash.c b/libctf/ctf-hash.c
index 3512d22a34..71c1f8e4e2 100644
--- a/libctf/ctf-hash.c
+++ b/libctf/ctf-hash.c
@@ -1,5 +1,5 @@
 /* Interface to hashtable implementations.
-   Copyright (C) 2006-2019 Free Software Foundation, Inc.
+   Copyright (C) 2006-2020 Free Software Foundation, Inc.
 
    This file is part of libctf.
 
@@ -82,6 +82,28 @@ ctf_hash_eq_string (const void *a, const void *b)
   return !strcmp((const char *) hep_a->key, (const char *) hep_b->key);
 }
 
+/* Hash a type_mapping_key.  */
+unsigned int
+ctf_hash_type_mapping_key (const void *ptr)
+{
+  ctf_helem_t *hep = (ctf_helem_t *) ptr;
+  ctf_link_type_mapping_key_t *k = (ctf_link_type_mapping_key_t *) hep->key;
+
+  return htab_hash_pointer (k->cltm_fp) + 59 * htab_hash_pointer ((void *) k->cltm_idx);
+}
+
+int
+ctf_hash_eq_type_mapping_key (const void *a, const void *b)
+{
+  ctf_helem_t *hep_a = (ctf_helem_t *) a;
+  ctf_helem_t *hep_b = (ctf_helem_t *) b;
+  ctf_link_type_mapping_key_t *key_a = (ctf_link_type_mapping_key_t *) hep_a->key;
+  ctf_link_type_mapping_key_t *key_b = (ctf_link_type_mapping_key_t *) hep_b->key;
+
+  return (key_a->cltm_fp == key_b->cltm_fp)
+    && (key_a->cltm_idx == key_b->cltm_idx);
+}
+
 /* The dynhash, used for hashes whose size is not known at creation time. */
 
 /* Free a single ctf_helem.  */
@@ -130,7 +152,9 @@ ctf_hashtab_lookup (struct htab *htab, const void *key, enum insert_option inser
 }
 
 static ctf_helem_t *
-ctf_hashtab_insert (struct htab *htab, void *key, void *value)
+ctf_hashtab_insert (struct htab *htab, void *key, void *value,
+		    ctf_hash_free_fun key_free,
+		    ctf_hash_free_fun value_free)
 {
   ctf_helem_t **slot;
 
@@ -147,8 +171,15 @@ ctf_hashtab_insert (struct htab *htab, void *key, void *value)
       *slot = malloc (sizeof (ctf_helem_t));
       if (!*slot)
 	return NULL;
-      (*slot)->key = key;
     }
+  else
+    {
+      if (key_free)
+	  key_free ((*slot)->key);
+      if (value_free)
+	  value_free ((*slot)->value);
+    }
+  (*slot)->key = key;
   (*slot)->value = value;
   return *slot;
 }
@@ -158,13 +189,14 @@ ctf_dynhash_insert (ctf_dynhash_t *hp, void *key, void *value)
 {
   ctf_helem_t *slot;
 
-  slot = ctf_hashtab_insert (hp->htab, key, value);
+  slot = ctf_hashtab_insert (hp->htab, key, value,
+			     hp->key_free, hp->value_free);
 
   if (!slot)
     return errno;
 
   /* We need to keep the key_free and value_free around in each item because the
-     del function has no visiblity into the hash as a whole, only into the
+     del function has no visibility into the hash as a whole, only into the
      individual items.  */
 
   slot->key_free = hp->key_free;
@@ -180,6 +212,12 @@ ctf_dynhash_remove (ctf_dynhash_t *hp, const void *key)
   htab_remove_elt (hp->htab, &hep);
 }
 
+void
+ctf_dynhash_empty (ctf_dynhash_t *hp)
+{
+  htab_empty (hp->htab);
+}
+
 void *
 ctf_dynhash_lookup (ctf_dynhash_t *hp, const void *key)
 {
@@ -289,7 +327,7 @@ ctf_hash_insert_type (ctf_hash_t *hp, ctf_file_t *fp, uint32_t type,
     return 0;		   /* Just ignore empty strings on behalf of caller.  */
 
   if (ctf_hashtab_insert ((struct htab *) hp, (char *) str,
-			  (void *) (ptrdiff_t) type) != NULL)
+			  (void *) (ptrdiff_t) type, NULL, NULL) != NULL)
     return 0;
   return errno;
 }