f8781c4a22
Removing CONFIG_SYSCALL_PTREGS from arch/x86/Kconfig and simply selecting ARCH_HAS_SYSCALL_WRAPPER unconditionally on x86-64 allows us to simplify several codepaths. Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20180405095307.3730-7-linux@dominikbrodowski.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
/*
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* syscalls.h - Linux syscall interfaces (arch-specific)
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*
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* Copyright (c) 2008 Jaswinder Singh Rajput
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*
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* This file is released under the GPLv2.
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* See the file COPYING for more details.
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*/
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#ifndef _ASM_X86_SYSCALLS_H
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#define _ASM_X86_SYSCALLS_H
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#include <linux/compiler.h>
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#include <linux/linkage.h>
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#include <linux/signal.h>
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#include <linux/types.h>
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/* Common in X86_32 and X86_64 */
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/* kernel/ioport.c */
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long ksys_ioperm(unsigned long from, unsigned long num, int turn_on);
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#ifdef CONFIG_X86_32
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/*
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* These definitions are only valid on pure 32-bit systems; x86-64 uses a
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* different syscall calling convention
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*/
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asmlinkage long sys_ioperm(unsigned long, unsigned long, int);
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asmlinkage long sys_iopl(unsigned int);
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/* kernel/ldt.c */
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asmlinkage long sys_modify_ldt(int, void __user *, unsigned long);
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/* kernel/signal.c */
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asmlinkage long sys_rt_sigreturn(void);
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/* kernel/tls.c */
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asmlinkage long sys_set_thread_area(struct user_desc __user *);
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asmlinkage long sys_get_thread_area(struct user_desc __user *);
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/* X86_32 only */
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/* kernel/signal.c */
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asmlinkage long sys_sigreturn(void);
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/* kernel/vm86_32.c */
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struct vm86_struct;
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asmlinkage long sys_vm86old(struct vm86_struct __user *);
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asmlinkage long sys_vm86(unsigned long, unsigned long);
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#endif /* CONFIG_X86_32 */
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#endif /* _ASM_X86_SYSCALLS_H */
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