/*
- * U-boot - ptrace.h
+ * Copyright 2004-2008 Analog Devices Inc.
*
- * Copyright (c) 2005-2007 Analog Devices Inc.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program 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.
- *
- * This program 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 this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
- * MA 02110-1301 USA
+ * Licensed under the GPL-2 or later.
*/
-#ifndef _BLACKFIN_PTRACE_H
-#define _BLACKFIN_PTRACE_H
-
-#define NEW_PT_REGS
+#ifndef _BFIN_PTRACE_H
+#define _BFIN_PTRACE_H
/*
* GCC defines register number like this:
* 16 - 31 dsp registers I/B/L0 -- I/B/L3 & M0--M3
* 32 - 33 A registers A0 & A1
* 34 - status register
+ * -----------------------------
*
* We follows above, except:
* 32-33 --- Low 32-bit of A0&1
* 34-35 --- High 8-bit of A0&1
*/
-#if defined(NEW_PT_REGS)
-
-#define PT_IPEND 0
-#define PT_SYSCFG (PT_IPEND+4)
-#define PT_SEQSTAT (PT_SYSCFG+4)
-#define PT_RETE (PT_SEQSTAT+4)
-#define PT_RETN (PT_RETE+4)
-#define PT_RETX (PT_RETN+4)
-#define PT_RETI (PT_RETX+4)
-#define PT_PC PT_RETI
-#define PT_RETS (PT_RETI+4)
-#define PT_RESERVED (PT_RETS+4)
-#define PT_ASTAT (PT_RESERVED+4)
-#define PT_LB1 (PT_ASTAT+4)
-#define PT_LB0 (PT_LB1+4)
-#define PT_LT1 (PT_LB0+4)
-#define PT_LT0 (PT_LT1+4)
-#define PT_LC1 (PT_LT0+4)
-#define PT_LC0 (PT_LC1+4)
-#define PT_A1W (PT_LC0+4)
-#define PT_A1X (PT_A1W+4)
-#define PT_A0W (PT_A1X+4)
-#define PT_A0X (PT_A0W+4)
-#define PT_B3 (PT_A0X+4)
-#define PT_B2 (PT_B3+4)
-#define PT_B1 (PT_B2+4)
-#define PT_B0 (PT_B1+4)
-#define PT_L3 (PT_B0+4)
-#define PT_L2 (PT_L3+4)
-#define PT_L1 (PT_L2+4)
-#define PT_L0 (PT_L1+4)
-#define PT_M3 (PT_L0+4)
-#define PT_M2 (PT_M3+4)
-#define PT_M1 (PT_M2+4)
-#define PT_M0 (PT_M1+4)
-#define PT_I3 (PT_M0+4)
-#define PT_I2 (PT_I3+4)
-#define PT_I1 (PT_I2+4)
-#define PT_I0 (PT_I1+4)
-#define PT_USP (PT_I0+4)
-#define PT_FP (PT_USP+4)
-#define PT_P5 (PT_FP+4)
-#define PT_P4 (PT_P5+4)
-#define PT_P3 (PT_P4+4)
-#define PT_P2 (PT_P3+4)
-#define PT_P1 (PT_P2+4)
-#define PT_P0 (PT_P1+4)
-#define PT_R7 (PT_P0+4)
-#define PT_R6 (PT_R7+4)
-#define PT_R5 (PT_R6+4)
-#define PT_R4 (PT_R5+4)
-#define PT_R3 (PT_R4+4)
-#define PT_R2 (PT_R3+4)
-#define PT_R1 (PT_R2+4)
-#define PT_R0 (PT_R1+4)
-#define PT_ORIG_R0 (PT_R0+4)
-#define PT_SR PT_SEQSTAT
-
-#else
-/*
- * Here utilize blackfin : dpregs = [pregs + imm16s4]
- * [pregs + imm16s4] = dpregs
- * to access defferent saved reg in stack
- */
-#define PT_R3 0
-#define PT_R4 4
-#define PT_R2 8
-#define PT_R1 12
-#define PT_P5 16
-#define PT_P4 20
-#define PT_P3 24
-#define PT_P2 28
-#define PT_P1 32
-#define PT_P0 36
-#define PT_R7 40
-#define PT_R6 44
-#define PT_R5 48
-#define PT_PC 52
-#define PT_SEQSTAT 56 /* so-called SR reg */
-#define PT_SR PT_SEQSTAT
-#define PT_ASTAT 60
-#define PT_RETS 64
-#define PT_A1w 68
-#define PT_A0w 72
-#define PT_A1x 76
-#define PT_A0x 80
-#define PT_ORIG_R0 84
-#define PT_R0 88
-#define PT_USP 92
-#define PT_FP 96
-#define PT_SP 100
-
-/* Added by HuTao, May26 2003 3:18PM */
-#define PT_IPEND 100
-
-/* Add SYSCFG register for single stepping support */
-#define PT_SYSCFG 104
-
-#endif
-
#ifndef __ASSEMBLY__
-#if defined(NEW_PT_REGS)
+struct task_struct;
+
/* this struct defines the way the registers are stored on the
- * stack during a system call.
- */
+ stack during a system call. */
+
struct pt_regs {
+ long orig_pc;
long ipend;
- long syscfg;
long seqstat;
long rete;
long retn;
long retx;
- long pc;
+ long pc; /* PC == RETI */
long rets;
- long reserved;
+ long reserved; /* Used as scratch during system calls */
long astat;
long lb1;
long lb0;
long r1;
long r0;
long orig_r0;
-};
-
-#else
-/* now we don't know what regs the system call will use */
-struct pt_regs {
- long r3;
- long r4;
- long r2;
- long r1;
- long p5;
- long p4;
- long p3;
- long p2;
- long p1;
- long p0;
- long r7;
- long r6;
- long r5;
- unsigned long pc;
- unsigned long seqstat;
- unsigned long astat;
- unsigned long rets;
- long a1w;
- long a0w;
- long a1x;
- long a0x;
- long orig_r0;
- long r0;
- long usp;
- long fp;
-/*
- * Added for supervisor/user mode switch.
- *
- * HuTao May26 03 3:23PM
- */
- long ipend;
+ long orig_p0;
long syscfg;
};
-#endif
-
/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
-#define PTRACE_GETREGS 12
-#define PTRACE_SETREGS 13 /* ptrace signal */
+#define PTRACE_GETREGS 12
+#define PTRACE_SETREGS 13 /* ptrace signal */
+
+#define PTRACE_GETFDPIC 31 /* get the ELF fdpic loadmap address */
+#define PTRACE_GETFDPIC_EXEC 0 /* [addr] request the executable loadmap */
+#define PTRACE_GETFDPIC_INTERP 1 /* [addr] request the interpreter loadmap */
+
+#define PS_S (0x0002)
#ifdef __KERNEL__
-#ifndef PS_S
-#define PS_S (0x0c00)
+/* user_mode returns true if only one bit is set in IPEND, other than the
+ master interrupt enable. */
+#define user_mode(regs) (!(((regs)->ipend & ~0x10) & (((regs)->ipend & ~0x10) - 1)))
+#define instruction_pointer(regs) ((regs)->pc)
+#define user_stack_pointer(regs) ((regs)->usp)
+#define profile_pc(regs) instruction_pointer(regs)
+extern void show_regs(struct pt_regs *);
+
+#define arch_has_single_step() (1)
+extern void user_enable_single_step(struct task_struct *);
+/* see arch/blackfin/kernel/ptrace.c about this redirect */
+#define user_disable_single_step(child) ptrace_disable(child)
-/* Bit 11:10 of SEQSTAT defines user/supervisor/debug mode
- * 00: user
- * 01: supervisor
- * 1x: debug
+/*
+ * Get the address of the live pt_regs for the specified task.
+ * These are saved onto the top kernel stack when the process
+ * is not running.
+ *
+ * Note: if a user thread is execve'd from kernel space, the
+ * kernel stack will not be empty on entry to the kernel, so
+ * ptracing these tasks will fail.
*/
+#define task_pt_regs(task) \
+ (struct pt_regs *) \
+ ((unsigned long)task_stack_page(task) + \
+ (THREAD_SIZE - sizeof(struct pt_regs)))
-#define PS_M (0x1000) /* I am not sure why this is required here Akbar */
-#endif
+#endif /* __KERNEL__ */
-#define user_mode(regs) (!((regs)->seqstat & PS_S))
-#define instruction_pointer(regs) ((regs)->pc)
-extern void show_regs(struct pt_regs *);
+#endif /* __ASSEMBLY__ */
+
+/*
+ * Offsets used by 'ptrace' system call interface.
+ */
-#endif
-#endif
-#endif
+#define PT_R0 204
+#define PT_R1 200
+#define PT_R2 196
+#define PT_R3 192
+#define PT_R4 188
+#define PT_R5 184
+#define PT_R6 180
+#define PT_R7 176
+#define PT_P0 172
+#define PT_P1 168
+#define PT_P2 164
+#define PT_P3 160
+#define PT_P4 156
+#define PT_P5 152
+#define PT_FP 148
+#define PT_USP 144
+#define PT_I0 140
+#define PT_I1 136
+#define PT_I2 132
+#define PT_I3 128
+#define PT_M0 124
+#define PT_M1 120
+#define PT_M2 116
+#define PT_M3 112
+#define PT_L0 108
+#define PT_L1 104
+#define PT_L2 100
+#define PT_L3 96
+#define PT_B0 92
+#define PT_B1 88
+#define PT_B2 84
+#define PT_B3 80
+#define PT_A0X 76
+#define PT_A0W 72
+#define PT_A1X 68
+#define PT_A1W 64
+#define PT_LC0 60
+#define PT_LC1 56
+#define PT_LT0 52
+#define PT_LT1 48
+#define PT_LB0 44
+#define PT_LB1 40
+#define PT_ASTAT 36
+#define PT_RESERVED 32
+#define PT_RETS 28
+#define PT_PC 24
+#define PT_RETX 20
+#define PT_RETN 16
+#define PT_RETE 12
+#define PT_SEQSTAT 8
+#define PT_IPEND 4
+
+#define PT_ORIG_R0 208
+#define PT_ORIG_P0 212
+#define PT_SYSCFG 216
+#define PT_TEXT_ADDR 220
+#define PT_TEXT_END_ADDR 224
+#define PT_DATA_ADDR 228
+#define PT_FDPIC_EXEC 232
+#define PT_FDPIC_INTERP 236
+
+#endif /* _BFIN_PTRACE_H */
/*
- * U-boot - traps.h
+ * Copyright 2004-2009 Analog Devices Inc.
+ * 2001 Lineo, Inc
+ * Tony Kou
+ * 1993 Hamish Macdonald
*
- * Copyright (c) 2005-2007 Analog Devices Inc.
- *
- * This file is based on
- * linux/include/asm/traps.h
- * Copyright (C) 1993 Hamish Macdonald
- * Lineo, Inc Jul 2001 Tony Kou
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program 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.
- *
- * This program 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 this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
- * MA 02110-1301 USA
+ * Licensed under the GPL-2
*/
-/*
- */
-
-#ifndef _BLACKFIN_TRAPS_H
-#define _BLACKFIN_TRAPS_H
-
-#ifndef __ASSEMBLY__
-typedef void (*e_vector) (void);
-extern e_vector vectors[];
-#endif
+#ifndef _BFIN_TRAPS_H
+#define _BFIN_TRAPS_H
#define VEC_SYS (0)
#define VEC_EXCPT01 (1)
#define VEC_CPLB_M (38)
#define VEC_CPLB_MHIT (39)
#define VEC_WATCH (40)
-#define VEC_ISTRU_VL (41)
+#define VEC_ISTRU_VL (41) /*ADSP-BF535 only (MH) */
#define VEC_MISALI_I (42)
#define VEC_CPLB_I_VL (43)
#define VEC_CPLB_I_M (44)
#define VEC_CPLB_I_MHIT (45)
#define VEC_ILL_RES (46) /* including unvalid supervisor mode insn */
+/* The hardware reserves (63) for future use - we use it to tell our
+ * normal exception handling code we have a hardware error
+ */
+#define VEC_HWERR (63)
-#define VECOFF(vec) ((vec)<<2)
-
-#ifndef __ASSEMBLY__
-
-/* Status register bits */
-#define PS_T (0x8000)
-#define PS_S (0x0c00) /* Supervisor mode = 0b01 */
-#define PS_D (0x0c00) /* Debug mode = 0b1x */
-#define PS_M (0x1000)
-#define PS_C (0x0001)
-
-#endif
-#endif
+#endif /* _BFIN_TRAPS_H */
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