1 files changed, 88 insertions, 0 deletions
diff --git a/lib/libmalloc/_malloc.c b/lib/libmalloc/_malloc.c
new file mode 100644
index 000000000000..34104e47f8c7
--- /dev/null
+++ b/lib/libmalloc/_malloc.c
@@ -0,0 +1,88 @@
+/*
+ * These are the wrappers around malloc for detailed tracing and leak
+ * detection.  Allocation routines call RECORD_FILE_AND_LINE to record the
+ * filename/line number keyed on the block address in the splay tree,
+ * de-allocation functions call DELETE_RECORD to delete the specified block
+ * address and its associated file/line from the splay tree.
+ */
+/*  Author: Mark Moraes <moraes@csri.toronto.edu> */
+
+/*LINTLIBRARY*/
+
+#include "defs.h"
+#include "globals.h"
+#include "trace.h"
+
+RCSID("$Id: _malloc.c,v 1.1 1994/03/06 22:59:20 nate Exp $")
+
+univptr_t
+__malloc(nbytes, fname, linenum)
+size_t nbytes;
+const char *fname;
+int linenum;
+{
+	univptr_t cp;
+	
+	PRTRACE(sprintf(_malloc_statsbuf, "%s:%d:", fname, linenum));
+	cp = malloc(nbytes);
+	RECORD_FILE_AND_LINE(cp, fname, linenum);
+	return(cp);
+}
+
+/* ARGSUSED if TRACE is not defined */
+void
+__free(cp, fname, linenum)
+univptr_t cp;
+const char *fname;
+int linenum;
+{
+	PRTRACE(sprintf(_malloc_statsbuf, "%s:%d:", fname, linenum));
+	DELETE_RECORD(cp);
+	free(cp);
+}
+
+univptr_t
+__realloc(cp, nbytes, fname, linenum)
+univptr_t cp;
+size_t nbytes;
+const char *fname;
+int linenum;
+{
+	univptr_t old;
+	
+	PRTRACE(sprintf(_malloc_statsbuf, "%s:%d:", fname, linenum));
+	old = cp;
+	cp = realloc(cp, nbytes);
+	if (old != cp) {
+		DELETE_RECORD(old);
+		RECORD_FILE_AND_LINE(cp, fname, linenum);
+	}
+	return(cp);
+}
+
+univptr_t
+__calloc(nelem, elsize, fname, linenum)
+size_t nelem, elsize;
+const char *fname;
+int linenum;
+{
+	univptr_t cp;
+	
+	PRTRACE(sprintf(_malloc_statsbuf, "%s:%d:", fname, linenum));
+	cp = calloc(nelem, elsize);
+	RECORD_FILE_AND_LINE(cp, fname, linenum);
+	return(cp);
+}
+
+/* ARGSUSED if TRACE is not defined */
+void
+__cfree(cp, fname, linenum)
+univptr_t cp;
+const char *fname;
+int linenum;
+{
+	PRTRACE(sprintf(_malloc_statsbuf, "%s:%d:", fname, linenum));
+	DELETE_RECORD(cp);
+	/* No point calling cfree() - it just calls free() */
+	free(cp);
+}