mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
synced 2026-11-09 11:00:49 +01:00
Dmitry V. Levin
6c132dd6d4
syscall_get_* functions are required to be implemented on all architectures in order to extend the generic ptrace API with PTRACE_GET_SYSCALL_INFO request. This adds remaining 2 syscall_get_* functions as documented in asm-generic/syscall.h: syscall_get_error and syscall_get_return_value. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Dmitry V. Levin <[email protected]> Cc: Richard Kuo <[email protected]> Cc: Elvira Khabirova <[email protected]> Cc: Eugene Syromyatnikov <[email protected]> Cc: Oleg Nesterov <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Greentime Hu <[email protected]> Cc: Helge Deller <[email protected]> [parisc] Cc: James E.J. Bottomley <[email protected]> Cc: James Hogan <[email protected]> Cc: kbuild test robot <[email protected]> Cc: Kees Cook <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Paul Burton <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Shuah Khan <[email protected]> Cc: Vincent Chen <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
54 lines
1.1 KiB
C
54 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Syscall support for the Hexagon architecture
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*
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* Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
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*/
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#ifndef _ASM_HEXAGON_SYSCALL_H
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#define _ASM_HEXAGON_SYSCALL_H
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#include <uapi/linux/audit.h>
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#include <linux/err.h>
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#include <asm/ptrace.h>
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typedef long (*syscall_fn)(unsigned long, unsigned long,
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unsigned long, unsigned long,
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unsigned long, unsigned long);
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#include <asm-generic/syscalls.h>
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extern void *sys_call_table[];
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static inline long syscall_get_nr(struct task_struct *task,
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struct pt_regs *regs)
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{
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return regs->r06;
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}
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static inline void syscall_get_arguments(struct task_struct *task,
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struct pt_regs *regs,
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unsigned long *args)
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{
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memcpy(args, &(®s->r00)[0], 6 * sizeof(args[0]));
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}
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static inline long syscall_get_error(struct task_struct *task,
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struct pt_regs *regs)
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{
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return IS_ERR_VALUE(regs->r00) ? regs->r00 : 0;
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}
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static inline long syscall_get_return_value(struct task_struct *task,
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struct pt_regs *regs)
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{
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return regs->r00;
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}
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static inline int syscall_get_arch(struct task_struct *task)
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{
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return AUDIT_ARCH_HEXAGON;
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}
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#endif
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