/* * Copyright (C) 2004-2006 Atmel Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef __ASM_AVR32_PTRACE_H #define __ASM_AVR32_PTRACE_H #define PTRACE_GETREGS 12 #define PTRACE_SETREGS 13 /* * Status Register bits */ #define SR_H 0x20000000 #define SR_J 0x10000000 #define SR_DM 0x08000000 #define SR_D 0x04000000 #define MODE_NMI 0x01c00000 #define MODE_EXCEPTION 0x01800000 #define MODE_INT3 0x01400000 #define MODE_INT2 0x01000000 #define MODE_INT1 0x00c00000 #define MODE_INT0 0x00800000 #define MODE_SUPERVISOR 0x00400000 #define MODE_USER 0x00000000 #define MODE_MASK 0x01c00000 #define SR_EM 0x00200000 #define SR_I3M 0x00100000 #define SR_I2M 0x00080000 #define SR_I1M 0x00040000 #define SR_I0M 0x00020000 #define SR_GM 0x00010000 #define SR_H_BIT 29 #define SR_J_BIT 28 #define SR_DM_BIT 27 #define SR_D_BIT 26 #define MODE_SHIFT 22 #define SR_EM_BIT 21 #define SR_I3M_BIT 20 #define SR_I2M_BIT 19 #define SR_I1M_BIT 18 #define SR_I0M_BIT 17 #define SR_GM_BIT 16 /* The user-visible part */ #define SR_L 0x00000020 #define SR_Q 0x00000010 #define SR_V 0x00000008 #define SR_N 0x00000004 #define SR_Z 0x00000002 #define SR_C 0x00000001 #define SR_L_BIT 5 #define SR_Q_BIT 4 #define SR_V_BIT 3 #define SR_N_BIT 2 #define SR_Z_BIT 1 #define SR_C_BIT 0 /* * The order is defined by the stmts instruction. r0 is stored first, * so it gets the highest address. * * Registers 0-12 are general-purpose registers (r12 is normally used for * the function return value). * Register 13 is the stack pointer * Register 14 is the link register * Register 15 is the program counter (retrieved from the RAR sysreg) */ #define FRAME_SIZE_FULL 72 #define REG_R12_ORIG 68 #define REG_R0 64 #define REG_R1 60 #define REG_R2 56 #define REG_R3 52 #define REG_R4 48 #define REG_R5 44 #define REG_R6 40 #define REG_R7 36 #define REG_R8 32 #define REG_R9 28 #define REG_R10 24 #define REG_R11 20 #define REG_R12 16 #define REG_SP 12 #define REG_LR 8 #define FRAME_SIZE_MIN 8 #define REG_PC 4 #define REG_SR 0 #ifndef __ASSEMBLY__ struct pt_regs { /* These are always saved */ unsigned long sr; unsigned long pc; /* These are sometimes saved */ unsigned long lr; unsigned long sp; unsigned long r12; unsigned long r11; unsigned long r10; unsigned long r9; unsigned long r8; unsigned long r7; unsigned long r6; unsigned long r5; unsigned long r4; unsigned long r3; unsigned long r2; unsigned long r1; unsigned long r0; /* Only saved on system call */ unsigned long r12_orig; }; #ifdef __KERNEL__ #include <asm/ocd.h> #define arch_ptrace_attach(child) ocd_enable(child) #define user_mode(regs) (((regs)->sr & MODE_MASK) == MODE_USER) #define instruction_pointer(regs) ((regs)->pc) #define profile_pc(regs) instruction_pointer(regs) extern void show_regs (struct pt_regs *); static __inline__ int valid_user_regs(struct pt_regs *regs) { /* * Some of the Java bits might be acceptable if/when we * implement some support for that stuff... */ if ((regs->sr & 0xffff0000) == 0) return 1; /* * Force status register flags to be sane and report this * illegal behaviour... */ regs->sr &= 0x0000ffff; return 0; } #endif /* __KERNEL__ */ #endif /* ! __ASSEMBLY__ */ #endif /* __ASM_AVR32_PTRACE_H */