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TOMOYO Linux Cross Reference
Linux/arch/nios2/include/asm/ptrace.h

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  1 /*
  2  * Copyright (C) 2013 Altera Corporation
  3  * Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch>
  4  * Copyright (C) 2004 Microtronix Datacom Ltd
  5  *
  6  * based on m68k asm/processor.h
  7  *
  8  * This file is subject to the terms and conditions of the GNU General Public
  9  * License.  See the file "COPYING" in the main directory of this archive
 10  * for more details.
 11  */
 12 
 13 #ifndef _ASM_NIOS2_PTRACE_H
 14 #define _ASM_NIOS2_PTRACE_H
 15 
 16 #include <uapi/asm/ptrace.h>
 17 
 18 /* This struct defines the way the registers are stored on the
 19    stack during a system call.  */
 20 
 21 #ifndef __ASSEMBLY__
 22 struct pt_regs {
 23         unsigned long  r8;      /* r8-r15 Caller-saved GP registers */
 24         unsigned long  r9;
 25         unsigned long  r10;
 26         unsigned long  r11;
 27         unsigned long  r12;
 28         unsigned long  r13;
 29         unsigned long  r14;
 30         unsigned long  r15;
 31         unsigned long  r1;      /* Assembler temporary */
 32         unsigned long  r2;      /* Retval LS 32bits */
 33         unsigned long  r3;      /* Retval MS 32bits */
 34         unsigned long  r4;      /* r4-r7 Register arguments */
 35         unsigned long  r5;
 36         unsigned long  r6;
 37         unsigned long  r7;
 38         unsigned long  orig_r2; /* Copy of r2 ?? */
 39         unsigned long  ra;      /* Return address */
 40         unsigned long  fp;      /* Frame pointer */
 41         unsigned long  sp;      /* Stack pointer */
 42         unsigned long  gp;      /* Global pointer */
 43         unsigned long  estatus;
 44         unsigned long  ea;      /* Exception return address (pc) */
 45         unsigned long  orig_r7;
 46 };
 47 
 48 /*
 49  * This is the extended stack used by signal handlers and the context
 50  * switcher: it's pushed after the normal "struct pt_regs".
 51  */
 52 struct switch_stack {
 53         unsigned long  r16;     /* r16-r23 Callee-saved GP registers */
 54         unsigned long  r17;
 55         unsigned long  r18;
 56         unsigned long  r19;
 57         unsigned long  r20;
 58         unsigned long  r21;
 59         unsigned long  r22;
 60         unsigned long  r23;
 61         unsigned long  fp;
 62         unsigned long  gp;
 63         unsigned long  ra;
 64 };
 65 
 66 #define user_mode(regs) (((regs)->estatus & ESTATUS_EU))
 67 
 68 #define instruction_pointer(regs)       ((regs)->ra)
 69 #define profile_pc(regs)                instruction_pointer(regs)
 70 #define user_stack_pointer(regs)        ((regs)->sp)
 71 extern void show_regs(struct pt_regs *);
 72 
 73 #define current_pt_regs() \
 74         ((struct pt_regs *)((unsigned long)current_thread_info() + THREAD_SIZE)\
 75                 - 1)
 76 
 77 int do_syscall_trace_enter(void);
 78 void do_syscall_trace_exit(void);
 79 #endif /* __ASSEMBLY__ */
 80 #endif /* _ASM_NIOS2_PTRACE_H */
 81 

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