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GNU C Library master sources branch master updated. glibc-2.26.9000-767-gfa680dc
- From: jsm28 at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 15 Nov 2017 18:40:49 -0000
- Subject: GNU C Library master sources branch master updated. glibc-2.26.9000-767-gfa680dc
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- Log -----------------------------------------------------------------
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=fa680dc61455acdf8779d82c6f4bba5b48935c08
commit fa680dc61455acdf8779d82c6f4bba5b48935c08
Author: Joseph Myers <joseph@codesourcery.com>
Date: Wed Nov 15 18:40:29 2017 +0000
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.
diff --git a/ChangeLog b/ChangeLog
index 88f3ac8..6ebdeed 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -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 b091181..78c07c8 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 acf7002..4ad9153 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. */
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 9 +++++++++
sysdeps/unix/sysv/linux/bits/mman-linux.h | 2 ++
sysdeps/unix/sysv/linux/hppa/bits/mman.h | 2 ++
3 files changed, 13 insertions(+), 0 deletions(-)
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