[AArch64] Add bits/hwcap.h for aarch64 linux
Commit Message
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
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.
> 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
new file mode 100644
@@ -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)