cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ptrace.h (2268B)


      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__
     22struct 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 */
     52struct 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)
     71extern 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
     77int do_syscall_trace_enter(void);
     78void do_syscall_trace_exit(void);
     79#endif /* __ASSEMBLY__ */
     80#endif /* _ASM_NIOS2_PTRACE_H */