aarch64: Add ILP32 support

Add support for the ILP32 abi variant to aarch64.

2017-09-01  Andrew Pinski  <andrew.pinski@caviumnetworks.com>
	    Yury Norov  <ynorov@caviumnetworks.com>
	    Steve Ellcey  <sellcey@caviumnetworks.com>

	* elf/cache.c (print_entry): Add FLAG_AARCH64_LIB32.
	* sysdeps/aarch64/configure.ac (HAVE_AARCH64_ILP32): New define.
	(default-abi): Allow for ilp32 ABI.
	* sysdeps/aarch64/configure: Regenerate.
	* sysdeps/aarch64/Implies: Deleted.
	* sysdeps/aarch64/ilp32/Implies: New file.
	* sysdeps/aarch64/ilp32/Implies-after: New file.
	* sysdeps/aarch64/lp64/Implies: New file.
	* sysdeps/aarch64/lp64/Implies-after: New file.
	* sysdeps/aarch64/nptl/bits/pthreadtypes-arch.h
	(__PTHREAD_RWLOCK_INT_FLAGS_SHARED): Set to 1.
	* sysdeps/aarch64/preconfigure (machine): Check for ilp32/lp64.
	* sysdeps/aarch64/tls-macros.h (TLS_IE): Remove register specification
	for __result and ifdef for ILP32.
	* sysdeps/generic/ldconfig.h (FLAG_AARCH64_LIB32): New define.
	* sysdeps/unix/sysv/linux/aarch64/Implies: Remove generic and
	wordsize-64 entries.
	* sysdeps/unix/sysv/linux/aarch64/Makefile (abi-variants): Add
	new variants for ilp32 and ilp32_be.
	(abi-lp64-condition, abi-lp64_be-condition): Check for __WORDSIZE
	equal to 64.
	(abi-ilp32-condition, abi-ilp32_be-condition): New.
	* sysdeps/unix/sysv/linux/aarch64/configure.ac (arch_minimum_kernel):
	Use different value for ILP32.
	(LIBC_SLIBDIR_RTLDDIR): Modify for ILP32.
	* sysdeps/unix/sysv/linux/aarch64/configure: Regenerate.
	* sysdeps/unix/sysv/linux/aarch64/ilp32/Implies: New file.
	* sysdeps/unix/sysv/linux/aarch64/ilp32/c++-types.data: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/ilp32/kernel_stat.h: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/ilp32/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/bits/stat.h: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/bits/statfs.h: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/bits/typesizes.h: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/bits/utmp.h: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/bits/utmpx.h: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/kernel-features.h: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/Implies: Add unix/sysv/linux/aarch64.
	* sysdeps/unix/sysv/linux/aarch64/ioctl.S: Move to lp64 directory.
	* sysdeps/unix/sysv/linux/aarch64/mmap.c: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/shlib-versions: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/c++-types.data: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/ldd-rewrite.sed: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/ipc_priv.h (__IPC_64): Check __ILP32
	when setting.
	* sysdeps/unix/sysv/linux/arm/readelflib.c (process_elf_file):
	Check for EM_AARCH64 when processing ELFCLASS32 object.
	* sysdeps/unix/sysv/linux/bits/fcntl-linux.h (F_GETLK, F_SETLCK,
	F_SETLKW): Check for __OFF_T_MATCHES_OFF64_T when defining.

1 files changed, 68 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/aarch64/bits/statfs.h b/sysdeps/unix/sysv/linux/aarch64/bits/statfs.h
new file mode 100644
index 0000000000..23953b9e6d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/bits/statfs.h
@@ -0,0 +1,68 @@
+/* Definition of `struct statfs', information about a filesystem.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   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/>.  */
+
+#ifndef _SYS_STATFS_H
+# error "Never include <bits/statfs.h> directly; use <sys/statfs.h> instead."
+#endif
+
+#include <endian.h>
+#include <bits/types.h>
+#include <bits/wordsize.h>
+
+/* On AArch64 both the 32-bit and 64-bit libc's use the kernels
+   'struct statfs' with 64 bit f_blocks/f_bfree/f_bavail/f_files/f_ffree
+   fields.  This means the statfs and statfs64 structs are identical
+   and the statfs and statfs64 calls can be aliases.  */
+
+struct statfs
+  {
+    __SWORD_TYPE f_type;
+    __SWORD_TYPE f_bsize;
+    __fsblkcnt_t f_blocks;
+    __fsblkcnt_t f_bfree;
+    __fsblkcnt_t f_bavail;
+    __fsfilcnt_t f_files;
+    __fsfilcnt_t f_ffree;
+    __fsid_t f_fsid;
+    __SWORD_TYPE f_namelen;
+    __SWORD_TYPE f_frsize;
+    __SWORD_TYPE f_flags;
+    __SWORD_TYPE f_spare[4];
+  };
+
+struct statfs64
+  {
+    __SWORD_TYPE f_type;
+    __SWORD_TYPE f_bsize;
+    __fsblkcnt64_t f_blocks;
+    __fsblkcnt64_t f_bfree;
+    __fsblkcnt64_t f_bavail;
+    __fsfilcnt64_t f_files;
+    __fsfilcnt64_t f_ffree;
+    __fsid_t f_fsid;
+    __SWORD_TYPE f_namelen;
+    __SWORD_TYPE f_frsize;
+    __SWORD_TYPE f_flags;
+    __SWORD_TYPE f_spare[4];
+  };
+
+/* Tell code we have these members.  */
+#define _STATFS_F_NAMELEN
+#define _STATFS_F_FRSIZE
+#define _STATFS_F_FLAGS