From: Joseph Myers <joseph@codesourcery.com>
Date: Tue, 6 Feb 2018 00:35:09 +0000 (+0000)
Subject: Add MAP_SHARED_VALIDATE from Linux 4.15.
X-Git-Tag: glibc-2.28~645
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=92669d6ee3f25b3ca4cb227d194900489f895432;p=thirdparty%2Fglibc.git

Add MAP_SHARED_VALIDATE from Linux 4.15.

This patch adds the MAP_SHARED_VALIDATE macro from Linux 4.15 to
bits/mman-linux.h and the hppa bits/mman.h.

Tested for x86_64.

	* sysdeps/unix/sysv/linux/bits/mman-linux.h [__USE_MISC]
	(MAP_SHARED_VALIDATE): New macro.
	* sysdeps/unix/sysv/linux/hppa/bits/mman.h [__USE_MISC]
	(MAP_SHARED_VALIDATE): Likewise.
---

diff --git a/ChangeLog b/ChangeLog
index 8c934b9cf56..115d3cbe034 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2018-02-06  Joseph Myers  <joseph@codesourcery.com>
+
+	* sysdeps/unix/sysv/linux/bits/mman-linux.h [__USE_MISC]
+	(MAP_SHARED_VALIDATE): New macro.
+	* sysdeps/unix/sysv/linux/hppa/bits/mman.h [__USE_MISC]
+	(MAP_SHARED_VALIDATE): Likewise.
+
 2018-02-05  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* elf/dl-addr.c (determine_info): Use ADDRIDX with DT_GNU_HASH.
diff --git a/sysdeps/unix/sysv/linux/bits/mman-linux.h b/sysdeps/unix/sysv/linux/bits/mman-linux.h
index e61212a7ea6..70edeb6d60f 100644
--- a/sysdeps/unix/sysv/linux/bits/mman-linux.h
+++ b/sysdeps/unix/sysv/linux/bits/mman-linux.h
@@ -42,6 +42,8 @@
 #define MAP_SHARED	0x01		/* Share changes.  */
 #define MAP_PRIVATE	0x02		/* Changes are private.  */
 #ifdef __USE_MISC
+# define MAP_SHARED_VALIDATE	0x03	/* Share changes and validate
+					   extension flags.  */
 # define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
 #endif
 
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/mman.h b/sysdeps/unix/sysv/linux/hppa/bits/mman.h
index 84ba0d6ba8f..380be7b789e 100644
--- a/sysdeps/unix/sysv/linux/hppa/bits/mman.h
+++ b/sysdeps/unix/sysv/linux/hppa/bits/mman.h
@@ -34,6 +34,8 @@
 #define MAP_SHARED	0x01		/* Share changes */
 #define MAP_PRIVATE	0x02		/* Changes are private */
 #ifdef __USE_MISC
+# define MAP_SHARED_VALIDATE	0x03	/* Share changes and validate
+					   extension flags.  */
 # define MAP_TYPE	0x03		/* Mask for type of mapping */
 #endif