/usr/include/xenomai/asm-x86/system.h is in libxenomai-dev 2.6.4+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 | /*
* Copyright (C) 2001,2002,2003 Philippe Gerum <rpm@xenomai.org>.
* Copyright (C) 2004 The HYADES Project (http://www.hyades-itea.org).
* Copyright (C) 2004,2005 Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>.
*
* x86_64 port:
* Copyright (C) 2001-2007 Philippe Gerum <rpm@xenomai.org>.
* Copyright (C) 2004-2006 Gilles Chanteperdrix <gilles.chanteperdrix@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_SYSTEM_H
#define _XENO_ASM_X86_SYSTEM_H
#define _XENO_ASM_X86_SYSTEM_H
#ifdef __KERNEL__
#include <linux/types.h>
#include <linux/ptrace.h>
#include <asm-generic/xenomai/system.h>
struct xnthread;
struct task_struct;
#ifdef CONFIG_X86_64
#define XNARCH_THREAD_STACKSZ 8192
#else
#define XNARCH_THREAD_STACKSZ 4096
#endif
typedef struct xnarchtcb { /* Per-thread arch-dependent block */
x86_fpustate i387 __attribute__ ((aligned (16)));
x86_fpustate *fpup;
unsigned long sp;
unsigned long *spp;
unsigned long ip;
unsigned long *ipp;
unsigned int stacksize;
unsigned long *stackbase;
#ifdef CONFIG_CC_STACKPROTECTOR
unsigned long canary;
#endif
struct {
unsigned long ip;
unsigned long ax;
unsigned long sp;
} mayday;
unsigned is_root: 1;
unsigned ts_usedfpu: 1;
unsigned cr0_ts: 1;
struct task_struct *user_task;
struct task_struct *active_task;
struct xnthread *self;
int imask;
const char *name;
void (*entry)(void *cookie);
void *cookie;
} xnarchtcb_t;
typedef struct xnarch_fltinfo {
unsigned vector;
long errcode;
struct pt_regs *regs;
} xnarch_fltinfo_t;
#define xnarch_stack_size(tcb) ((tcb)->stacksize)
#define xnarch_stack_base(tcb) ((tcb)->stackbase)
#define xnarch_stack_end(tcb) ((caddr_t)(tcb)->stackbase - (tcb)->stacksize)
#define xnarch_fpu_ptr(tcb) ((tcb)->fpup)
#define xnarch_user_task(tcb) ((tcb)->user_task)
#define xnarch_user_pid(tcb) ((tcb)->user_task->pid)
#define xnarch_fault_trap(fi) ((fi)->vector)
#define xnarch_fault_code(fi) ((fi)->errcode)
#define xnarch_fault_pc(fi) ((fi)->regs->x86reg_ip)
#define xnarch_fault_fpu_p(fi) ((fi)->vector == 7)
#define xnarch_fault_pf_p(fi) ((fi)->vector == 14)
#define xnarch_fault_bp_p(fi) ((current->ptrace & PT_PTRACED) && \
((fi)->vector == 1 || (fi)->vector == 3))
#define xnarch_fault_notify(fi) (!xnarch_fault_bp_p(fi))
static inline void *xnarch_alloc_host_mem(unsigned long bytes)
{
if (bytes > 128*1024)
return vmalloc(bytes);
return kmalloc(bytes,GFP_KERNEL);
}
static inline void xnarch_free_host_mem(void *chunk, unsigned long bytes)
{
if (bytes > 128*1024)
vfree(chunk);
else
kfree(chunk);
}
static inline void *xnarch_alloc_stack_mem(unsigned long bytes)
{
return kmalloc(bytes, GFP_KERNEL);
}
static inline void xnarch_free_stack_mem(void *chunk, unsigned long bytes)
{
kfree(chunk);
}
static inline int xnarch_shadow_p(xnarchtcb_t *tcb, struct task_struct *task)
{
return tcb->spp == &task->thread.x86reg_sp;
}
#else /* !__KERNEL__ */
#include <nucleus/system.h>
#include <bits/local_lim.h>
#endif /* __KERNEL__ */
#endif /* !_XENO_ASM_X86_SYSTEM_H */
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