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-rw-r--r--include/android/sharedmem.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/android/sharedmem.h b/include/android/sharedmem.h
index 6efa4f71cb..5f74682b40 100644
--- a/include/android/sharedmem.h
+++ b/include/android/sharedmem.h
@@ -65,6 +65,10 @@ extern "C" {
* another process. File descriptors may also be sent to other processes over a Unix domain
* socket with sendmsg and SCM_RIGHTS. See sendmsg(3) and cmsg(3) man pages for more information.
*
+ * If you intend to share this file descriptor with a child process after
+ * calling exec(3), note that you will need to use fcntl(2) with FD_SETFD
+ * to clear the FD_CLOEXEC flag for this to work on all versions of Android.
+ *
* Available since API level 26.
*
* \param name an optional name.