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| author | Joseph Myers <joseph@codesourcery.com> | 2017-11-15 18:40:29 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2017-11-15 18:40:29 +0000 |
| commit | fa680dc61455acdf8779d82c6f4bba5b48935c08 (patch) | |
| tree | 6fc7fa9e8c275e605ee6734a3f9f01c4a66ba8a4 | |
| parent | 1ba1d8a44d244110c1f8d768f098ac44351acb76 (diff) | |
| download | glibc-fa680dc61455acdf8779d82c6f4bba5b48935c08.tar glibc-fa680dc61455acdf8779d82c6f4bba5b48935c08.tar.gz glibc-fa680dc61455acdf8779d82c6f4bba5b48935c08.tar.bz2 glibc-fa680dc61455acdf8779d82c6f4bba5b48935c08.zip | |
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.
| -rw-r--r-- | ChangeLog | 9 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/bits/mman-linux.h | 2 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/hppa/bits/mman.h | 2 |
3 files changed, 13 insertions, 0 deletions
@@ -1,3 +1,12 @@ +2017-11-15 Joseph Myers <joseph@codesourcery.com> + + * 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. + 2017-11-15 Adhemerval Zanella <adhemerval.zanella@linaro.org> * signal/sigrelse.c (sigrelse): Optimize implementation. 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 diff --git a/sysdeps/unix/sysv/linux/hppa/bits/mman.h b/sysdeps/unix/sysv/linux/hppa/bits/mman.h index acf7002beb..4ad9153d92 100644 --- a/sysdeps/unix/sysv/linux/hppa/bits/mman.h +++ b/sysdeps/unix/sysv/linux/hppa/bits/mman.h @@ -99,6 +99,8 @@ # define MADV_DONTDUMP 69 /* Explicity exclude from the core dump, overrides the coredump filter bits */ # define MADV_DODUMP 70 /* Clear the MADV_NODUMP flag */ +# define MADV_WIPEONFORK 71 /* Zero memory on fork, child only. */ +# define MADV_KEEPONFORK 72 /* Undo MADV_WIPEONFORK. */ #endif /* The POSIX people had to invent similar names for the same things. */ |