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505d66d1ab
When clone3() was introduced, it was not obvious how each architecture deals with setting up the stack and keeping the register contents in a fork()-like system call, so this was left for the architecture maintainers to implement, with __ARCH_WANT_SYS_CLONE3 defined by those that already implement it. Five years later, we still have a few architectures left that are missing clone3(), and the macro keeps getting in the way as it's fundamentally different from all the other __ARCH_WANT_SYS_* macros that are meant to provide backwards-compatibility with applications using older syscalls that are no longer provided by default. Address this by reversing the polarity of the macro, adding an __ARCH_BROKEN_SYS_CLONE3 macro to all architectures that don't already provide the syscall, and remove __ARCH_WANT_SYS_CLONE3 from all the other ones. Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* System calls under the Sparc.
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*
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* Don't be scared by the ugly clobbers, it is the only way I can
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* think of right now to force the arguments into fixed registers
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* before the trap into the system call with gcc 'asm' statements.
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*
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* Copyright (C) 1995, 2007 David S. Miller (davem@davemloft.net)
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*
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* SunOS compatibility based upon preliminary work which is:
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*
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* Copyright (C) 1995 Adrian M. Rodriguez (adrian@remus.rutgers.edu)
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*/
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#ifndef _SPARC_UNISTD_H
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#define _SPARC_UNISTD_H
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#include <uapi/asm/unistd.h>
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#define NR_syscalls __NR_syscalls
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#ifdef __32bit_syscall_numbers__
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#else
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#define __NR_time 231 /* Linux sparc32 */
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#endif
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#define __ARCH_WANT_NEW_STAT
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#define __ARCH_WANT_OLD_READDIR
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#define __ARCH_WANT_STAT64
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#define __ARCH_WANT_SYS_ALARM
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#define __ARCH_WANT_SYS_GETHOSTNAME
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#define __ARCH_WANT_SYS_PAUSE
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#define __ARCH_WANT_SYS_SIGNAL
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#define __ARCH_WANT_SYS_TIME32
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#define __ARCH_WANT_SYS_UTIME32
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#define __ARCH_WANT_SYS_WAITPID
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#define __ARCH_WANT_SYS_SOCKETCALL
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#define __ARCH_WANT_SYS_FADVISE64
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#define __ARCH_WANT_SYS_GETPGRP
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#define __ARCH_WANT_SYS_NICE
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#define __ARCH_WANT_SYS_OLDUMOUNT
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#define __ARCH_WANT_SYS_SIGPENDING
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#define __ARCH_WANT_SYS_SIGPROCMASK
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#ifdef __32bit_syscall_numbers__
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#define __ARCH_WANT_SYS_IPC
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#else
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#define __ARCH_WANT_SYS_TIME
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#define __ARCH_WANT_SYS_UTIME
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#define __ARCH_WANT_COMPAT_SYS_SENDFILE
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#define __ARCH_WANT_COMPAT_STAT
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#endif
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#define __ARCH_BROKEN_SYS_CLONE3
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#ifdef __32bit_syscall_numbers__
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/* Sparc 32-bit only has the "setresuid32", "getresuid32" variants,
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* it never had the plain ones and there is no value to adding those
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* old versions into the syscall table.
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*/
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#define __IGNORE_setresuid
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#define __IGNORE_getresuid
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#define __IGNORE_setresgid
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#define __IGNORE_getresgid
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#endif
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#endif /* _SPARC_UNISTD_H */
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