From fa680dc61455acdf8779d82c6f4bba5b48935c08 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Wed, 15 Nov 2017 18:40:29 +0000 Subject: Add MADV_WIPEONFORK, MADV_KEEPONFORK from Linux 4.14. This patch adds the new MADV_WIPEONFORK and MADV_KEEPONFORK from Linux 4.14 to bits/mman-linux.h (and bits/mman.h in the hppa case). Note there are further hppa MADV_* changes in 4.14; I plan a separate glibc patch for those. Tested for x86_64. * sysdeps/unix/sysv/linux/bits/mman-linux.h [__USE_MISC] (MADV_WIPEONFORK): New macro. [__USE_MISC] (MADV_KEEPONFORK): Likewise. * sysdeps/unix/sysv/linux/hppa/bits/mman.h [__USE_MISC] (MADV_WIPEONFORK): Likewise. [__USE_MISC] (MADV_KEEPONFORK): Likewise. --- sysdeps/unix/sysv/linux/bits/mman-linux.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'sysdeps/unix/sysv/linux/bits/mman-linux.h') diff --git a/sysdeps/unix/sysv/linux/bits/mman-linux.h b/sysdeps/unix/sysv/linux/bits/mman-linux.h index b091181960..78c07c890a 100644 --- a/sysdeps/unix/sysv/linux/bits/mman-linux.h +++ b/sysdeps/unix/sysv/linux/bits/mman-linux.h @@ -89,6 +89,8 @@ # define MADV_DONTDUMP 16 /* Explicity exclude from the core dump, overrides the coredump filter bits. */ # define MADV_DODUMP 17 /* Clear the MADV_DONTDUMP flag. */ +# define MADV_WIPEONFORK 18 /* Zero memory on fork, child only. */ +# define MADV_KEEPONFORK 19 /* Undo MADV_WIPEONFORK. */ # define MADV_HWPOISON 100 /* Poison a page for testing. */ #endif -- cgit 1.4.1