diff mbox

[AArch64] Add bits/hwcap.h for aarch64 linux

Message ID 576AB08A.90507@arm.com
State New
Headers show

Commit Message

Szabolcs Nagy June 22, 2016, 3:36 p.m. UTC
As noted in

https://sourceware.org/ml/libc-alpha/2014-02/msg00562.html

AArch64 uses HWCAP bits but they are not defined in sys/auxv.h.
This patch adds a copy of the linux v4.6 arm64 uapi asm/hwcap.h
definitions.

2016-06-22  Szabolcs Nagy  <szabolcs.nagy@arm.com>

	* sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h: New.

Comments

Szabolcs Nagy July 8, 2016, 4:08 p.m. UTC | #1
On 22/06/16 16:36, Szabolcs Nagy wrote:
> As noted in
> 
> https://sourceware.org/ml/libc-alpha/2014-02/msg00562.html
> 
> AArch64 uses HWCAP bits but they are not defined in sys/auxv.h.
> This patch adds a copy of the linux v4.6 arm64 uapi asm/hwcap.h
> definitions.
> 
> 2016-06-22  Szabolcs Nagy  <szabolcs.nagy@arm.com>
> 
> 	* sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h: New.
> 

ping.

i'd like to fix this in 2.24 if that's ok.
Marcus Shawcroft July 11, 2016, 8:29 a.m. UTC | #2
> On 22 Jun 2016, at 16:36, Szabolcs Nagy <Szabolcs.Nagy@arm.com> wrote:
> 
> 
> 2016-06-22  Szabolcs Nagy  <szabolcs.nagy@arm.com>
> 
> 	* sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h: New.

OK /Marcus
diff mbox

Patch

diff --git a/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h b/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
new file mode 100644
index 0000000..9759130
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
@@ -0,0 +1,34 @@ 
+/* Defines for bits in AT_HWCAP.  AArch64 Linux version.
+   Copyright (C) 2016 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#if !defined (_SYS_AUXV_H)
+# error "Never include <bits/hwcap.h> directly; use <sys/auxv.h> instead."
+#endif
+
+/* The following must match the kernel's <asm/hwcap.h>.  */
+#define HWCAP_FP		(1 << 0)
+#define HWCAP_ASIMD		(1 << 1)
+#define HWCAP_EVTSTRM		(1 << 2)
+#define HWCAP_AES		(1 << 3)
+#define HWCAP_PMULL		(1 << 4)
+#define HWCAP_SHA1		(1 << 5)
+#define HWCAP_SHA2		(1 << 6)
+#define HWCAP_CRC32		(1 << 7)
+#define HWCAP_ATOMICS		(1 << 8)
+#define HWCAP_FPHP		(1 << 9)
+#define HWCAP_ASIMDHP		(1 << 10)