Another round of documentation.
Bug: N/A
Test: N/A
Change-Id: I1b818fbb36ddd6d084dee56828290c2717a0c9b0
diff --git a/libc/include/sys/shm.h b/libc/include/sys/shm.h
index 4723eba..a3f84d3 100644
--- a/libc/include/sys/shm.h
+++ b/libc/include/sys/shm.h
@@ -26,8 +26,12 @@
* SUCH DAMAGE.
*/
-#ifndef _SYS_SHM_H_
-#define _SYS_SHM_H_
+#pragma once
+
+/**
+ * @file sys/shm.h
+ * @brief System V shared memory. Not useful on Android because it's disallowed by SELinux.
+ */
#include <sys/cdefs.h>
#include <sys/ipc.h>
@@ -42,11 +46,13 @@
typedef unsigned long shmatt_t;
+/** Not useful on Android; disallowed by SELinux. */
void* shmat(int __shm_id, const void* __addr, int __flags) __INTRODUCED_IN(26);
+/** Not useful on Android; disallowed by SELinux. */
int shmctl(int __shm_id, int __cmd, struct shmid_ds* __buf) __INTRODUCED_IN(26);
+/** Not useful on Android; disallowed by SELinux. */
int shmdt(const void* __addr) __INTRODUCED_IN(26);
+/** Not useful on Android; disallowed by SELinux. */
int shmget(key_t __key, size_t __size, int __flags) __INTRODUCED_IN(26);
__END_DECLS
-
-#endif