baed7fc9b5
Add a generic implementation of the ipc demultiplexer syscall. Except for s390 and sparc64 all implementations of the sys_ipc are nearly identical. There are slight differences in the types of the parameters, where mips and powerpc as the only 64-bit architectures with sys_ipc use unsigned long for the "third" argument as it gets casted to a pointer later, while it traditionally is an "int" like most other paramters. frv goes even further and uses unsigned long for all parameters execept for "ptr" which is a pointer type everywhere. The change from int to unsigned long for "third" and back to "int" for the others on frv should be fine due to the in-register calling conventions for syscalls (we already had a similar issue with the generic sys_ptrace), but I'd prefer to have the arch maintainers looks over this in details. Except for that h8300, m68k and m68knommu lack an impplementation of the semtimedop sub call which this patch adds, and various architectures have gets used - at least on i386 it seems superflous as the compat code on x86-64 and ia64 doesn't even bother to implement it. [akpm@linux-foundation.org: add sys_ipc to sys_ni.c] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Reviewed-by: H. Peter Anvin <hpa@zytor.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: James Morris <jmorris@namei.org> Cc: Andreas Schwab <schwab@linux-m68k.org> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: David Howells <dhowells@redhat.com> Acked-by: Kyle McMartin <kyle@mcmartin.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
79 lines
2.2 KiB
C
79 lines
2.2 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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asmlinkage long sys_ioperm(unsigned long, unsigned long, int);
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long sys_iopl(unsigned int, struct pt_regs *);
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/* kernel/process.c */
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int sys_fork(struct pt_regs *);
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int sys_vfork(struct pt_regs *);
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long sys_execve(char __user *, char __user * __user *,
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char __user * __user *, struct pt_regs *);
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long sys_clone(unsigned long, unsigned long, void __user *,
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void __user *, struct pt_regs *);
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/* kernel/ldt.c */
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asmlinkage int sys_modify_ldt(int, void __user *, unsigned long);
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/* kernel/signal.c */
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long sys_rt_sigreturn(struct pt_regs *);
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long sys_sigaltstack(const stack_t __user *, stack_t __user *,
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struct pt_regs *);
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/* kernel/tls.c */
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asmlinkage int sys_set_thread_area(struct user_desc __user *);
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asmlinkage int sys_get_thread_area(struct user_desc __user *);
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/* X86_32 only */
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#ifdef CONFIG_X86_32
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/* kernel/signal.c */
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asmlinkage int sys_sigsuspend(int, int, old_sigset_t);
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asmlinkage int sys_sigaction(int, const struct old_sigaction __user *,
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struct old_sigaction __user *);
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unsigned long sys_sigreturn(struct pt_regs *);
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/* kernel/sys_i386_32.c */
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struct oldold_utsname;
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struct old_utsname;
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asmlinkage int sys_uname(struct old_utsname __user *);
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asmlinkage int sys_olduname(struct oldold_utsname __user *);
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/* kernel/vm86_32.c */
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int sys_vm86old(struct vm86_struct __user *, struct pt_regs *);
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int sys_vm86(unsigned long, unsigned long, struct pt_regs *);
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#else /* CONFIG_X86_32 */
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/* X86_64 only */
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/* kernel/process_64.c */
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long sys_arch_prctl(int, unsigned long);
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/* kernel/sys_x86_64.c */
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struct new_utsname;
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asmlinkage long sys_mmap(unsigned long, unsigned long, unsigned long,
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unsigned long, unsigned long, unsigned long);
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asmlinkage long sys_uname(struct new_utsname __user *);
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#endif /* CONFIG_X86_32 */
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#endif /* _ASM_X86_SYSCALLS_H */
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