cpphash.c (_cpp_destroy_hashtable): Use ht_destroy.

	* cpphash.c (_cpp_destroy_hashtable): Use ht_destroy.
	* cpphash.h (CPP_IN_SYSTEM_HEADER): Fix.
	(struct cpp_pool): New member first.
	* cppinit.c (append_include_chain): Plug memory leaks.
	* cpplib.c (cpp_register_pragma, cpp_register_pragma_space):
	Allocate pragma structures from the (aligned) macro pool to
	avoid leaking memory.
	* cpplex.c (_cpp_init_pool, _cpp_free_pool): Use pool->first
	so we don't leak memory.
	* hashtable.c (ht_destroy): New.
	* hashtable.h (ht_destroy): New.

From-SVN: r44794

1 files changed, 11 insertions, 0 deletions

diff --git a/gcc/hashtable.c b/gcc/hashtable.c
index 82c3a9e..7d0359a 100644
--- a/gcc/hashtable.c
+++ b/gcc/hashtable.c
@@ -94,6 +94,17 @@ ht_create (order)
   return table;
 }
 
+/* Frees all memory associated with a hash table.  */
+
+void
+ht_destroy (table)
+     hash_table *table;
+{
+  obstack_free (&table->stack, NULL);
+  free (table->entries);
+  free (table);
+}
+
 /* Returns the hash entry for the a STR of length LEN.  If that string
    already exists in the table, returns the existing entry, and, if
    INSERT is CPP_ALLOCED, frees the last obstack object.  If the