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- /*
- * Copyright (C) 2013 Altera Corporation
- * Copyright (C) 2010 Tobias Klauser <[email protected]>
- * Copyright (C) 2004 Microtronix Datacom Ltd
- *
- * based on m68k asm/processor.h
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
- #ifndef _ASM_NIOS2_PTRACE_H
- #define _ASM_NIOS2_PTRACE_H
- #include <uapi/asm/ptrace.h>
- /* This struct defines the way the registers are stored on the
- stack during a system call. */
- #ifndef __ASSEMBLY__
- struct pt_regs {
- unsigned long r8; /* r8-r15 Caller-saved GP registers */
- unsigned long r9;
- unsigned long r10;
- unsigned long r11;
- unsigned long r12;
- unsigned long r13;
- unsigned long r14;
- unsigned long r15;
- unsigned long r1; /* Assembler temporary */
- unsigned long r2; /* Retval LS 32bits */
- unsigned long r3; /* Retval MS 32bits */
- unsigned long r4; /* r4-r7 Register arguments */
- unsigned long r5;
- unsigned long r6;
- unsigned long r7;
- unsigned long orig_r2; /* Copy of r2 ?? */
- unsigned long ra; /* Return address */
- unsigned long fp; /* Frame pointer */
- unsigned long sp; /* Stack pointer */
- unsigned long gp; /* Global pointer */
- unsigned long estatus;
- unsigned long ea; /* Exception return address (pc) */
- unsigned long orig_r7;
- };
- /*
- * This is the extended stack used by signal handlers and the context
- * switcher: it's pushed after the normal "struct pt_regs".
- */
- struct switch_stack {
- unsigned long r16; /* r16-r23 Callee-saved GP registers */
- unsigned long r17;
- unsigned long r18;
- unsigned long r19;
- unsigned long r20;
- unsigned long r21;
- unsigned long r22;
- unsigned long r23;
- unsigned long fp;
- unsigned long gp;
- unsigned long ra;
- };
- #define user_mode(regs) (((regs)->estatus & ESTATUS_EU))
- #define instruction_pointer(regs) ((regs)->ra)
- #define profile_pc(regs) instruction_pointer(regs)
- #define user_stack_pointer(regs) ((regs)->sp)
- extern void show_regs(struct pt_regs *);
- #define current_pt_regs() \
- ((struct pt_regs *)((unsigned long)current_thread_info() + THREAD_SIZE)\
- - 1)
- #define force_successful_syscall_return() (current_pt_regs()->orig_r2 = -1)
- int do_syscall_trace_enter(void);
- void do_syscall_trace_exit(void);
- #endif /* __ASSEMBLY__ */
- #endif /* _ASM_NIOS2_PTRACE_H */
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