aarch64: Make cpu-features definitions not Linux-specific

These describe generic AArch64 CPU features, and are not tied to a
kernel-specific way of determining them. We can share them between
the Linux and Hurd AArch64 ports.

Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
Message-ID: <20240103171502.1358371-13-bugaevc@gmail.com>

2 files changed, 0 insertions, 110 deletions

diff --git a/sysdeps/unix/sysv/linux/aarch64/cpu-features.h b/sysdeps/unix/sysv/linux/aarch64/cpu-features.h
deleted file mode 100644
index 77a782422a..0000000000
--- a/sysdeps/unix/sysv/linux/aarch64/cpu-features.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/* Initialize CPU feature data.  AArch64 version.
-   This file is part of the GNU C Library.
-   Copyright (C) 2017-2024 Free Software Foundation, Inc.
-
-   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
-   <https://www.gnu.org/licenses/>.  */
-
-#ifndef _CPU_FEATURES_AARCH64_H
-#define _CPU_FEATURES_AARCH64_H
-
-#include <stdint.h>
-#include <stdbool.h>
-
-#define MIDR_PARTNUM_SHIFT	4
-#define MIDR_PARTNUM_MASK	(0xfff << MIDR_PARTNUM_SHIFT)
-#define MIDR_PARTNUM(midr)	\
-	(((midr) & MIDR_PARTNUM_MASK) >> MIDR_PARTNUM_SHIFT)
-#define MIDR_ARCHITECTURE_SHIFT	16
-#define MIDR_ARCHITECTURE_MASK	(0xf << MIDR_ARCHITECTURE_SHIFT)
-#define MIDR_ARCHITECTURE(midr)	\
-	(((midr) & MIDR_ARCHITECTURE_MASK) >> MIDR_ARCHITECTURE_SHIFT)
-#define MIDR_VARIANT_SHIFT	20
-#define MIDR_VARIANT_MASK	(0xf << MIDR_VARIANT_SHIFT)
-#define MIDR_VARIANT(midr)	\
-	(((midr) & MIDR_VARIANT_MASK) >> MIDR_VARIANT_SHIFT)
-#define MIDR_IMPLEMENTOR_SHIFT	24
-#define MIDR_IMPLEMENTOR_MASK	(0xff << MIDR_IMPLEMENTOR_SHIFT)
-#define MIDR_IMPLEMENTOR(midr)	\
-	(((midr) & MIDR_IMPLEMENTOR_MASK) >> MIDR_IMPLEMENTOR_SHIFT)
-
-#define IS_THUNDERX(midr) (MIDR_IMPLEMENTOR(midr) == 'C'	\
-			   && MIDR_PARTNUM(midr) == 0x0a1)
-
-#define IS_THUNDERX2PA(midr) (MIDR_IMPLEMENTOR(midr) == 'B'     \
-			   && MIDR_PARTNUM(midr) == 0x516)
-#define IS_THUNDERX2(midr) (MIDR_IMPLEMENTOR(midr) == 'C'       \
-			   && MIDR_PARTNUM(midr) == 0xaf)
-
-#define IS_NEOVERSE_N1(midr) (MIDR_IMPLEMENTOR(midr) == 'A'		      \
-			      && MIDR_PARTNUM(midr) == 0xd0c)
-#define IS_NEOVERSE_N2(midr) (MIDR_IMPLEMENTOR(midr) == 'A'		      \
-			      && MIDR_PARTNUM(midr) == 0xd49)
-#define IS_NEOVERSE_V1(midr) (MIDR_IMPLEMENTOR(midr) == 'A'		      \
-			      && MIDR_PARTNUM(midr) == 0xd40)
-
-#define IS_EMAG(midr) (MIDR_IMPLEMENTOR(midr) == 'P'			      \
-                       && MIDR_PARTNUM(midr) == 0x000)
-
-#define IS_KUNPENG920(midr) (MIDR_IMPLEMENTOR(midr) == 'H'			   \
-                        && MIDR_PARTNUM(midr) == 0xd01)
-
-#define IS_A64FX(midr) (MIDR_IMPLEMENTOR(midr) == 'F'			      \
-			&& MIDR_PARTNUM(midr) == 0x001)
-
-struct cpu_features
-{
-  uint64_t midr_el1;
-  unsigned zva_size;
-  bool bti;
-  /* Currently, the GLIBC memory tagging tunable only defines 8 bits.  */
-  uint8_t mte_state;
-  bool sve;
-  bool mops;
-};
-
-#endif /* _CPU_FEATURES_AARCH64_H  */
diff --git a/sysdeps/unix/sysv/linux/aarch64/libc-start.c b/sysdeps/unix/sysv/linux/aarch64/libc-start.c
deleted file mode 100644
index a29384954d..0000000000
--- a/sysdeps/unix/sysv/linux/aarch64/libc-start.c
+++ /dev/null
@@ -1,33 +0,0 @@
-/* Override csu/libc-start.c on AArch64.
-   Copyright (C) 2017-2024 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
-   <https://www.gnu.org/licenses/>.  */
-
-#ifndef SHARED
-
-/* Mark symbols hidden in static PIE for early self relocation to work.  */
-# if BUILD_PIE_DEFAULT
-#  pragma GCC visibility push(hidden)
-# endif
-# include <ldsodefs.h>
-# include <cpu-features.c>
-
-extern struct cpu_features _dl_aarch64_cpu_features;
-
-# define ARCH_INIT_CPU_FEATURES() init_cpu_features (&_dl_aarch64_cpu_features)
-
-#endif
-#include <csu/libc-start.c>