Init

lib/csu/common/alloc_pbuf.c

@@ -0,0 +1,25 @@
+#ifndef lint
+static  char sccsid[] = "@(#)alloc_pbuf.c 1.1 94/10/31 SMI";
+#endif
+/*
+ * Copyright (c) 1987 Sun Microsystems, Inc.
+ */
+
+#include <fcntl.h>
+#include <sys/mman.h>
+
+/* allocate the buffer to be used by profil(2)  */
+char *
+_alloc_profil_buf(size)
+	int size;
+{
+	char *buf;
+	int fd;
+
+	if((fd = open("/dev/zero",O_RDONLY)) == -1 ) {
+		return (char*) -1;
+	}
+	buf = (char*) mmap(0, size, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
+	close(fd);
+	return buf;
+}