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2153b2e891
Add support for the clone3 system call to the SPARC architectures. The implementation follows the pattern of the original clone syscall. However, instead of explicitly calling kernel_clone, the clone3 handler calls the generic sys_clone3 handler in kernel/fork. In case no stack is provided, the parents stack is reused. The return value convention for clone3 follows the regular kernel return value convention (in contrast to the original clone/fork on SPARC). Closes: https://github.com/sparclinux/issues/issues/10 Signed-off-by: Ludwig Rydberg <ludwig.rydberg@gaisler.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Andreas Larsson <andreas@gaisler.com> Tested-by: Andreas Larsson <andreas@gaisler.com> Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/20260119144753.27945-3-ludwig.rydberg@gaisler.com Signed-off-by: Andreas Larsson <andreas@gaisler.com>
64 lines
1.8 KiB
C
64 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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#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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