/usr/include/xenomai/asm-x86/wrappers_64.h is in libxenomai-dev 2.6.2.1-2ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (C) 2007 Philippe Gerum <rpm@xenomai.org>.
*
* Xenomai is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
* by the Free Software Foundation; either version 2 of the License,
* or (at your option) any later version.
*
* Xenomai is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Xenomai; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#ifndef _XENO_ASM_X86_WRAPPERS_64_H
#define _XENO_ASM_X86_WRAPPERS_64_H
#define _XENO_ASM_X86_WRAPPERS_H
#ifndef __KERNEL__
#error "Pure kernel header included from user-space!"
#endif
#include <asm-generic/xenomai/wrappers.h> /* Read the generic portion. */
#include <linux/interrupt.h>
#define wrap_strncpy_from_user(dstP, srcP, n) rthal_strncpy_from_user(dstP, srcP, n)
#define wrap_phys_mem_prot(filp,pfn,size,prot) (prot)
#define rthal_irq_desc_status(irq) (rthal_irq_descp(irq)->status)
#if !defined(CONFIG_GENERIC_HARDIRQS) \
|| LINUX_VERSION_CODE < KERNEL_VERSION(2,6,37)
#define rthal_irq_chip_enable(irq) ({ rthal_irq_descp(irq)->chip->unmask(irq); 0; })
#define rthal_irq_chip_disable(irq) ({ rthal_irq_descp(irq)->chip->mask(irq); 0; })
#endif
#define rthal_irq_chip_end(irq) ({ rthal_irq_descp(irq)->ipipe_end(irq, rthal_irq_descp(irq)); 0; })
typedef irq_handler_t rthal_irq_host_handler_t;
#define DECLARE_LINUX_IRQ_HANDLER(fn, irq, dev_id) \
irqreturn_t fn(int irq, void *dev_id)
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
#define x86reg_origax orig_ax
#define x86reg_ax ax
#define x86reg_bx bx
#define x86reg_cx cx
#define x86reg_dx dx
#define x86reg_si si
#define x86reg_di di
#define x86reg_sp sp
#define x86reg_bp bp
#define x86reg_ip ip
#else
#define x86reg_origax orig_rax
#define x86reg_ax rax
#define x86reg_bx rbx
#define x86reg_cx rcx
#define x86reg_dx rdx
#define x86reg_si rsi
#define x86reg_di rdi
#define x86reg_sp rsp
#define x86reg_bp rbp
#define x86reg_ip rip
#endif
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,25)
typedef union i387_union x86_fpustate;
#define x86_fpustate_ptr(t) (&(t)->i387)
#elif LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34)
typedef union thread_xstate x86_fpustate;
#define x86_fpustate_ptr(t) ((t)->xstate)
#else /* 2.6.35 and above */
typedef union thread_xstate x86_fpustate;
#define x86_fpustate_ptr(t) ((t)->fpu.state)
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0)
#ifdef TS_USEDFPU
#define wrap_test_fpu_used(task) \
(task_thread_info(task)->status & TS_USEDFPU)
#define wrap_set_fpu_used(task) \
do { \
task_thread_info(task)->status |= TS_USEDFPU; \
} while(0)
#define wrap_clear_fpu_used(task) \
do { \
task_thread_info(task)->status &= ~TS_USEDFPU; \
} while(0)
#else /* !defined(TS_USEDFPU) */
#define wrap_test_fpu_used(task) ((task)->thread.has_fpu)
#define wrap_set_fpu_used(task) \
do { \
(task)->thread.has_fpu = 1; \
} while(0)
#define wrap_clear_fpu_used(task) \
do { \
(task)->thread.has_fpu = 0; \
} while(0)
#endif /* !defined(TS_USEDFPU) */
#else /* Linux >= 3.4.0 */
#include <asm/i387.h>
#include <asm/fpu-internal.h>
#define wrap_test_fpu_used(task) __thread_has_fpu(task)
#define wrap_set_fpu_used(task) __thread_set_has_fpu(task)
#define wrap_clear_fpu_used(task) __thread_clear_has_fpu(task)
#endif /* Linux >= 3.4.0 */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34)
#define per_cpu_var(var) (var)
#endif /* Linux >= 2.6.34 */
#endif /* _XENO_ASM_X86_WRAPPERS_64_H */
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