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bf4b6a7d37
New architectures should no longer need stat64, which is not y2038 safe and has been replaced by statx(). This removes the 'select __ARCH_WANT_STAT64' statement from asm-generic/unistd.h and instead moves it into the respective asm/unistd.h UAPI header files for each architecture that uses it today. In the generic file, the system call number and entry points are now made conditional, so newly added architectures (e.g. riscv32 or csky) will never need to carry backwards compatiblity for it. arm64 is the only 64-bit architecture using the asm-generic/unistd.h file, and it already sets __ARCH_WANT_NEW_STAT in its headers, and I use the same #ifdef here: future 64-bit architectures therefore won't see newstat or stat64 any more. They don't suffer from the y2038 time_t overflow, but for consistency it seems best to also let them use statx(). Signed-off-by: Arnd Bergmann <arnd@arndb.de>
50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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/******** no-legacy-syscalls-ABI *******/
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/*
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* Non-typical guard macro to enable inclusion twice in ARCH sys.c
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* That is how the Generic syscall wrapper generator works
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*/
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#if !defined(_UAPI_ASM_ARC_UNISTD_H) || defined(__SYSCALL)
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#define _UAPI_ASM_ARC_UNISTD_H
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#define __ARCH_WANT_RENAMEAT
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#define __ARCH_WANT_STAT64
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#define __ARCH_WANT_SYS_EXECVE
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#define __ARCH_WANT_SYS_CLONE
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#define __ARCH_WANT_SYS_VFORK
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#define __ARCH_WANT_SYS_FORK
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#define sys_mmap2 sys_mmap_pgoff
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#include <asm-generic/unistd.h>
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#define NR_syscalls __NR_syscalls
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/* Generic syscall (fs/filesystems.c - lost in asm-generic/unistd.h */
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#define __NR_sysfs (__NR_arch_specific_syscall + 3)
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/* ARC specific syscall */
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#define __NR_cacheflush (__NR_arch_specific_syscall + 0)
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#define __NR_arc_settls (__NR_arch_specific_syscall + 1)
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#define __NR_arc_gettls (__NR_arch_specific_syscall + 2)
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#define __NR_arc_usr_cmpxchg (__NR_arch_specific_syscall + 4)
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__SYSCALL(__NR_cacheflush, sys_cacheflush)
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__SYSCALL(__NR_arc_settls, sys_arc_settls)
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__SYSCALL(__NR_arc_gettls, sys_arc_gettls)
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__SYSCALL(__NR_arc_usr_cmpxchg, sys_arc_usr_cmpxchg)
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__SYSCALL(__NR_sysfs, sys_sysfs)
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#undef __SYSCALL
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#endif
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