Another round of documentation.
Bug: N/A
Test: N/A
Change-Id: I1b818fbb36ddd6d084dee56828290c2717a0c9b0
diff --git a/libc/include/bits/auxvec.h b/libc/include/bits/auxvec.h
index de3cfbb..4d39477 100644
--- a/libc/include/bits/auxvec.h
+++ b/libc/include/bits/auxvec.h
@@ -26,18 +26,24 @@
* SUCH DAMAGE.
*/
-#ifndef _BITS_AUXVEC_H_
-#define _BITS_AUXVEC_H_
+#pragma once
+
+/**
+ * @file bits/auxvec.h
+ * @brief Constants for use with getauxval().
+ */
#include <sys/cdefs.h>
#include <linux/auxvec.h>
-/* Historical arch-specific cruft. */
-#define AT_FPUCW 18 /* SuperH */
-#define AT_DCACHEBSIZE 19 /* PowerPC */
-#define AT_ICACHEBSIZE 20 /* PowerPC */
-#define AT_UCACHEBSIZE 21 /* PowerPC */
-#define AT_IGNOREPPC 22 /* PowerPC */
-
-#endif
+/** Historical SuperH cruft. Irrelevant on Android. */
+#define AT_FPUCW 18
+/** Historical PowerPC cruft. Irrelevant on Android. */
+#define AT_DCACHEBSIZE 19
+/** Historical PowerPC cruft. Irrelevant on Android. */
+#define AT_ICACHEBSIZE 20
+/** Historical PowerPC cruft. Irrelevant on Android. */
+#define AT_UCACHEBSIZE 21
+/** Historical PowerPC cruft. Irrelevant on Android. */
+#define AT_IGNOREPPC 22