linux/arch/arm/include/asm/unistd.h
Arnd Bergmann 505d66d1ab clone3: drop __ARCH_WANT_SYS_CLONE3 macro
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>
2024-07-10 14:23:38 +02:00

66 lines
1.5 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* arch/arm/include/asm/unistd.h
*
* Copyright (C) 2001-2005 Russell King
*
* Please forward _all_ changes to this file to rmk@arm.linux.org.uk,
* no matter what the change is. Thanks!
*/
#ifndef __ASM_ARM_UNISTD_H
#define __ASM_ARM_UNISTD_H
#include <uapi/asm/unistd.h>
#include <asm/unistd-nr.h>
#define __ARCH_WANT_NEW_STAT
#define __ARCH_WANT_STAT64
#define __ARCH_WANT_SYS_GETHOSTNAME
#define __ARCH_WANT_SYS_PAUSE
#define __ARCH_WANT_SYS_GETPGRP
#define __ARCH_WANT_SYS_NICE
#define __ARCH_WANT_SYS_SIGPENDING
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_SYS_OLD_MMAP
#define __ARCH_WANT_SYS_OLD_SELECT
#define __ARCH_WANT_SYS_UTIME32
#if !defined(CONFIG_AEABI) || defined(CONFIG_OABI_COMPAT)
#define __ARCH_WANT_SYS_TIME32
#define __ARCH_WANT_SYS_IPC
#define __ARCH_WANT_SYS_OLDUMOUNT
#define __ARCH_WANT_SYS_ALARM
#define __ARCH_WANT_SYS_OLD_GETRLIMIT
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_SYS_SOCKETCALL
#endif
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE
/*
* Unimplemented (or alternatively implemented) syscalls
*/
#define __IGNORE_fadvise64_64
#ifdef __ARM_EABI__
/*
* The following syscalls are obsolete and no longer available for EABI:
* __NR_time
* __NR_umount
* __NR_stime
* __NR_alarm
* __NR_utime
* __NR_getrlimit
* __NR_select
* __NR_readdir
* __NR_mmap
* __NR_socketcall
* __NR_syscall
* __NR_ipc
*/
#define __IGNORE_getrlimit
#endif
#endif /* __ASM_ARM_UNISTD_H */