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Add SHM_HUGETLB, SHM_NORESERVE to bits/shm.h

From: Joseph Myers <joseph at codesourcery dot com>
To: <libc-alpha at sourceware dot org>
Date: Thu, 16 Nov 2017 21:14:04 +0000
Subject: Add SHM_HUGETLB, SHM_NORESERVE to bits/shm.h
Authentication-results: sourceware.org; auth=none
Linux 4.14 adds SHM_HUGETLB and SHM_NORESERVE to
include/uapi/linux/shm.h.  (These macros previously existed in the
kernel, but in the non-UAPI header.)  This patch adds them to
bits/shm.h accordingly.

Tested for x86_64, and with build-many-glibcs.py.

2017-11-16  Joseph Myers  <joseph@codesourcery.com>

	* sysdeps/unix/sysv/linux/bits/shm.h (SHM_HUGETLB): New macro.
	(SHM_NORESERVE): Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/shm.h (SHM_HUGETLB):
	Likewise.
	(SHM_NORESERVE): Likewise.
	* sysdeps/unix/sysv/linux/arm/bits/shm.h (SHM_HUGETLB): Likewise.
	(SHM_NORESERVE): Likewise.
	* sysdeps/unix/sysv/linux/generic/bits/shm.h (SHM_HUGETLB):
	Likewise.
	(SHM_NORESERVE): Likewise.
	* sysdeps/unix/sysv/linux/hppa/bits/shm.h (SHM_HUGETLB): Likewise.
	(SHM_NORESERVE): Likewise.
	* sysdeps/unix/sysv/linux/ia64/bits/shm.h (SHM_HUGETLB): Likewise.
	(SHM_NORESERVE): Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/shm.h (SHM_HUGETLB): Likewise.
	(SHM_NORESERVE): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/shm.h (SHM_HUGETLB):
	Likewise.
	(SHM_NORESERVE): Likewise.
	* sysdeps/unix/sysv/linux/s390/bits/shm.h (SHM_HUGETLB): Likewise.
	(SHM_NORESERVE): Likewise.
	* sysdeps/unix/sysv/linux/sh/bits/shm.h (SHM_HUGETLB): Likewise.
	(SHM_NORESERVE): Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/shm.h (SHM_HUGETLB):
	Likewise.
	(SHM_NORESERVE): Likewise.
	* sysdeps/unix/sysv/linux/x86/bits/shm.h (SHM_HUGETLB): Likewise.
	(SHM_NORESERVE): Likewise.

diff --git a/sysdeps/unix/sysv/linux/alpha/bits/shm.h b/sysdeps/unix/sysv/linux/alpha/bits/shm.h
index d628dcf..4c9dd05 100644
--- a/sysdeps/unix/sysv/linux/alpha/bits/shm.h
+++ b/sysdeps/unix/sysv/linux/alpha/bits/shm.h
@@ -21,9 +21,11 @@
 
 #include <bits/types.h>
 
-/* Permission flag for shmget.  */
+/* Flags for shmget.  */
 #define SHM_R		0400		/* or S_IRUGO from <linux/stat.h> */
 #define SHM_W		0200		/* or S_IWUGO from <linux/stat.h> */
+#define SHM_HUGETLB	04000		/* Segment will use huge TLB pages.  */
+#define SHM_NORESERVE	010000		/* Don't check for reservations.  */
 
 /* Flags for `shmat'.  */
 #define SHM_RDONLY	010000		/* attach read-only else read-write */
diff --git a/sysdeps/unix/sysv/linux/arm/bits/shm.h b/sysdeps/unix/sysv/linux/arm/bits/shm.h
index 2448ffd..c2ffbc4 100644
--- a/sysdeps/unix/sysv/linux/arm/bits/shm.h
+++ b/sysdeps/unix/sysv/linux/arm/bits/shm.h
@@ -21,9 +21,11 @@
 
 #include <bits/types.h>
 
-/* Permission flag for shmget.  */
+/* Flags for shmget.  */
 #define SHM_R		0400		/* or S_IRUGO from <linux/stat.h> */
 #define SHM_W		0200		/* or S_IWUGO from <linux/stat.h> */
+#define SHM_HUGETLB	04000		/* Segment will use huge TLB pages.  */
+#define SHM_NORESERVE	010000		/* Don't check for reservations.  */
 
 /* Flags for `shmat'.  */
 #define SHM_RDONLY	010000		/* attach read-only else read-write */
diff --git a/sysdeps/unix/sysv/linux/bits/shm.h b/sysdeps/unix/sysv/linux/bits/shm.h
index f8f593c..c73f090 100644
--- a/sysdeps/unix/sysv/linux/bits/shm.h
+++ b/sysdeps/unix/sysv/linux/bits/shm.h
@@ -21,9 +21,11 @@
 
 #include <bits/types.h>
 
-/* Permission flag for shmget.  */
+/* Flags for shmget.  */
 #define SHM_R		0400		/* or S_IRUGO from <linux/stat.h> */
 #define SHM_W		0200		/* or S_IWUGO from <linux/stat.h> */
+#define SHM_HUGETLB	04000		/* Segment will use huge TLB pages.  */
+#define SHM_NORESERVE	010000		/* Don't check for reservations.  */
 
 /* Flags for `shmat'.  */
 #define SHM_RDONLY	010000		/* attach read-only else read-write */
diff --git a/sysdeps/unix/sysv/linux/generic/bits/shm.h b/sysdeps/unix/sysv/linux/generic/bits/shm.h
index 057b85c..2e160ad 100644
--- a/sysdeps/unix/sysv/linux/generic/bits/shm.h
+++ b/sysdeps/unix/sysv/linux/generic/bits/shm.h
@@ -23,9 +23,11 @@
 #include <bits/types.h>
 #include <bits/wordsize.h>
 
-/* Permission flag for shmget.  */
+/* Flags for shmget.  */
 #define SHM_R		0400		/* or S_IRUGO from <linux/stat.h> */
 #define SHM_W		0200		/* or S_IWUGO from <linux/stat.h> */
+#define SHM_HUGETLB	04000		/* Segment will use huge TLB pages.  */
+#define SHM_NORESERVE	010000		/* Don't check for reservations.  */
 
 /* Flags for `shmat'.  */
 #define SHM_RDONLY	010000		/* attach read-only else read-write */
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/shm.h b/sysdeps/unix/sysv/linux/hppa/bits/shm.h
index 495dae8..9f07f3a 100644
--- a/sysdeps/unix/sysv/linux/hppa/bits/shm.h
+++ b/sysdeps/unix/sysv/linux/hppa/bits/shm.h
@@ -22,9 +22,11 @@
 #include <bits/types.h>
 #include <bits/wordsize.h>
 
-/* Permission flag for shmget.  */
+/* Flags for shmget.  */
 #define SHM_R		0400		/* or S_IRUGO from <linux/stat.h> */
 #define SHM_W		0200		/* or S_IWUGO from <linux/stat.h> */
+#define SHM_HUGETLB	04000		/* Segment will use huge TLB pages.  */
+#define SHM_NORESERVE	010000		/* Don't check for reservations.  */
 
 /* Flags for `shmat'.  */
 #define SHM_RDONLY	010000		/* attach read-only else read-write */
diff --git a/sysdeps/unix/sysv/linux/ia64/bits/shm.h b/sysdeps/unix/sysv/linux/ia64/bits/shm.h
index add8a60..ec44a48 100644
--- a/sysdeps/unix/sysv/linux/ia64/bits/shm.h
+++ b/sysdeps/unix/sysv/linux/ia64/bits/shm.h
@@ -21,9 +21,11 @@
 
 #include <sys/types.h>
 
-/* Permission flag for shmget.  */
+/* Flags for shmget.  */
 #define SHM_R           0400            /* or S_IRUGO from <linux/stat.h> */
 #define SHM_W           0200            /* or S_IWUGO from <linux/stat.h> */
+#define SHM_HUGETLB     04000           /* Segment will use huge TLB pages.  */
+#define SHM_NORESERVE   010000          /* Don't check for reservations.  */
 
 /* Flags for `shmat'.  */
 #define SHM_RDONLY	010000		/* attach read-only else read-write */
diff --git a/sysdeps/unix/sysv/linux/mips/bits/shm.h b/sysdeps/unix/sysv/linux/mips/bits/shm.h
index 20a02ce..d09d093 100644
--- a/sysdeps/unix/sysv/linux/mips/bits/shm.h
+++ b/sysdeps/unix/sysv/linux/mips/bits/shm.h
@@ -21,9 +21,11 @@
 
 #include <bits/types.h>
 
-/* Permission flag for shmget.  */
+/* Flags for shmget.  */
 #define SHM_R		0400		/* or S_IRUGO from <linux/stat.h> */
 #define SHM_W		0200		/* or S_IWUGO from <linux/stat.h> */
+#define SHM_HUGETLB	04000		/* Segment will use huge TLB pages.  */
+#define SHM_NORESERVE	010000		/* Don't check for reservations.  */
 
 /* Flags for `shmat'.  */
 #define SHM_RDONLY	010000		/* attach read-only else read-write */
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/shm.h b/sysdeps/unix/sysv/linux/powerpc/bits/shm.h
index 3812e73..a7bcacd 100644
--- a/sysdeps/unix/sysv/linux/powerpc/bits/shm.h
+++ b/sysdeps/unix/sysv/linux/powerpc/bits/shm.h
@@ -21,9 +21,11 @@
 
 #include <bits/types.h>
 
-/* Permission flag for shmget.  */
+/* Flags for shmget.  */
 #define SHM_R          0400            /* or S_IRUGO from <linux/stat.h> */
 #define SHM_W          0200            /* or S_IWUGO from <linux/stat.h> */
+#define SHM_HUGETLB    04000           /* Segment will use huge TLB pages.  */
+#define SHM_NORESERVE  010000          /* Don't check for reservations.  */
 
 /* Flags for `shmat'.  */
 #define SHM_RDONLY	010000          /* attach read-only else read-write */
diff --git a/sysdeps/unix/sysv/linux/s390/bits/shm.h b/sysdeps/unix/sysv/linux/s390/bits/shm.h
index 768b169..0c24d76 100644
--- a/sysdeps/unix/sysv/linux/s390/bits/shm.h
+++ b/sysdeps/unix/sysv/linux/s390/bits/shm.h
@@ -22,9 +22,11 @@
 #include <bits/types.h>
 #include <bits/wordsize.h>
 
-/* Permission flag for shmget.	*/
+/* Flags for shmget.  */
 #define SHM_R		0400		/* or S_IRUGO from <linux/stat.h> */
 #define SHM_W		0200		/* or S_IWUGO from <linux/stat.h> */
+#define SHM_HUGETLB	04000		/* Segment will use huge TLB pages.  */
+#define SHM_NORESERVE	010000		/* Don't check for reservations.  */
 
 /* Flags for `shmat'.  */
 #define SHM_RDONLY	010000		/* attach read-only else read-write */
diff --git a/sysdeps/unix/sysv/linux/sh/bits/shm.h b/sysdeps/unix/sysv/linux/sh/bits/shm.h
index d1f47ec..02750f4 100644
--- a/sysdeps/unix/sysv/linux/sh/bits/shm.h
+++ b/sysdeps/unix/sysv/linux/sh/bits/shm.h
@@ -21,9 +21,11 @@
 
 #include <bits/types.h>
 
-/* Permission flag for shmget.  */
+/* Flags for shmget.  */
 #define SHM_R		0400		/* or S_IRUGO from <linux/stat.h> */
 #define SHM_W		0200		/* or S_IWUGO from <linux/stat.h> */
+#define SHM_HUGETLB	04000		/* Segment will use huge TLB pages.  */
+#define SHM_NORESERVE	010000		/* Don't check for reservations.  */
 
 /* Flags for `shmat'.  */
 #define SHM_RDONLY	010000		/* attach read-only else read-write */
diff --git a/sysdeps/unix/sysv/linux/sparc/bits/shm.h b/sysdeps/unix/sysv/linux/sparc/bits/shm.h
index c7857cc..d995661 100644
--- a/sysdeps/unix/sysv/linux/sparc/bits/shm.h
+++ b/sysdeps/unix/sysv/linux/sparc/bits/shm.h
@@ -22,9 +22,11 @@
 #include <bits/types.h>
 #include <bits/wordsize.h>
 
-/* Permission flag for shmget.  */
+/* Flags for shmget.  */
 #define SHM_R		0400		/* or S_IRUGO from <linux/stat.h> */
 #define SHM_W		0200		/* or S_IWUGO from <linux/stat.h> */
+#define SHM_HUGETLB	04000		/* Segment will use huge TLB pages.  */
+#define SHM_NORESERVE	010000		/* Don't check for reservations.  */
 
 /* Flags for `shmat'.  */
 #define SHM_RDONLY	010000		/* attach read-only else read-write */
diff --git a/sysdeps/unix/sysv/linux/x86/bits/shm.h b/sysdeps/unix/sysv/linux/x86/bits/shm.h
index 5f8e2e1..78a427b 100644
--- a/sysdeps/unix/sysv/linux/x86/bits/shm.h
+++ b/sysdeps/unix/sysv/linux/x86/bits/shm.h
@@ -21,9 +21,11 @@
 
 #include <bits/types.h>
 
-/* Permission flag for shmget.  */
+/* Flags for shmget.  */
 #define SHM_R		0400		/* or S_IRUGO from <linux/stat.h> */
 #define SHM_W		0200		/* or S_IWUGO from <linux/stat.h> */
+#define SHM_HUGETLB	04000		/* Segment will use huge TLB pages.  */
+#define SHM_NORESERVE	010000		/* Don't check for reservations.  */
 
 /* Flags for `shmat'.  */
 #define SHM_RDONLY	010000		/* attach read-only else read-write */

-- 
Joseph S. Myers
joseph@codesourcery.com
Follow-Ups:
- Re: Add SHM_HUGETLB, SHM_NORESERVE to bits/shm.h
  - From: Dmitry V. Levin
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