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d68dbb0c9a
This cleanly handles arches who do not yet define clone3.
clone3() was initially placed under __ARCH_WANT_SYS_CLONE under the
assumption that this would cleanly handle all architectures. It does
not.
Architectures such as nios2 or h8300 simply take the asm-generic syscall
definitions and generate their syscall table from it. Since they don't
define __ARCH_WANT_SYS_CLONE the build would fail complaining about
sys_clone3 missing. The reason this doesn't happen for legacy clone is
that nios2 and h8300 provide assembly stubs for sys_clone. This seems to
be done for architectural reasons.
The build failures for nios2 and h8300 were caught int -next luckily.
The solution is to define __ARCH_WANT_SYS_CLONE3 that architectures can
add. Additionally, we need a cond_syscall(clone3) for architectures such
as nios2 or h8300 that generate their syscall table in the way I
explained above.
Fixes: 8f3220a806 ("arch: wire-up clone3() syscall")
Signed-off-by: Christian Brauner <christian@brauner.io>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Kees Cook <keescook@chromium.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Adrian Reber <adrian@lisas.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: linux-api@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: x86@kernel.org
17 lines
370 B
C
17 lines
370 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _XTENSA_UNISTD_H
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#define _XTENSA_UNISTD_H
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#define __ARCH_WANT_SYS_CLONE
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#define __ARCH_WANT_SYS_CLONE3
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#include <uapi/asm/unistd.h>
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#define __ARCH_WANT_NEW_STAT
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#define __ARCH_WANT_STAT64
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#define __ARCH_WANT_SYS_UTIME32
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#define __ARCH_WANT_SYS_GETPGRP
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#define NR_syscalls __NR_syscalls
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#endif /* _XTENSA_UNISTD_H */
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