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@ -1,31 +1,11 @@ |
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/*
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* U-boot - ptrace.h |
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* Copyright 2004-2008 Analog Devices Inc. |
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* |
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* Copyright (c) 2005-2007 Analog Devices Inc. |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, |
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* MA 02110-1301 USA |
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* Licensed under the GPL-2 or later. |
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*/ |
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#ifndef _BLACKFIN_PTRACE_H |
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#define _BLACKFIN_PTRACE_H |
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#define NEW_PT_REGS |
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#ifndef _BFIN_PTRACE_H |
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#define _BFIN_PTRACE_H |
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/*
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* GCC defines register number like this: |
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@ -35,128 +15,30 @@ |
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* 16 - 31 dsp registers I/B/L0 -- I/B/L3 & M0--M3 |
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* 32 - 33 A registers A0 & A1 |
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* 34 - status register |
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* ----------------------------- |
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* |
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* We follows above, except: |
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* 32-33 --- Low 32-bit of A0&1 |
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* 34-35 --- High 8-bit of A0&1 |
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*/ |
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#if defined(NEW_PT_REGS) |
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#define PT_IPEND 0 |
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#define PT_SYSCFG (PT_IPEND+4) |
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#define PT_SEQSTAT (PT_SYSCFG+4) |
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#define PT_RETE (PT_SEQSTAT+4) |
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#define PT_RETN (PT_RETE+4) |
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#define PT_RETX (PT_RETN+4) |
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#define PT_RETI (PT_RETX+4) |
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#define PT_PC PT_RETI |
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#define PT_RETS (PT_RETI+4) |
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#define PT_RESERVED (PT_RETS+4) |
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#define PT_ASTAT (PT_RESERVED+4) |
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#define PT_LB1 (PT_ASTAT+4) |
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#define PT_LB0 (PT_LB1+4) |
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#define PT_LT1 (PT_LB0+4) |
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#define PT_LT0 (PT_LT1+4) |
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#define PT_LC1 (PT_LT0+4) |
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#define PT_LC0 (PT_LC1+4) |
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#define PT_A1W (PT_LC0+4) |
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#define PT_A1X (PT_A1W+4) |
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#define PT_A0W (PT_A1X+4) |
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#define PT_A0X (PT_A0W+4) |
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#define PT_B3 (PT_A0X+4) |
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#define PT_B2 (PT_B3+4) |
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#define PT_B1 (PT_B2+4) |
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#define PT_B0 (PT_B1+4) |
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#define PT_L3 (PT_B0+4) |
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#define PT_L2 (PT_L3+4) |
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#define PT_L1 (PT_L2+4) |
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#define PT_L0 (PT_L1+4) |
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#define PT_M3 (PT_L0+4) |
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#define PT_M2 (PT_M3+4) |
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#define PT_M1 (PT_M2+4) |
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#define PT_M0 (PT_M1+4) |
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#define PT_I3 (PT_M0+4) |
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#define PT_I2 (PT_I3+4) |
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#define PT_I1 (PT_I2+4) |
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#define PT_I0 (PT_I1+4) |
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#define PT_USP (PT_I0+4) |
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#define PT_FP (PT_USP+4) |
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#define PT_P5 (PT_FP+4) |
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#define PT_P4 (PT_P5+4) |
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#define PT_P3 (PT_P4+4) |
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#define PT_P2 (PT_P3+4) |
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#define PT_P1 (PT_P2+4) |
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#define PT_P0 (PT_P1+4) |
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#define PT_R7 (PT_P0+4) |
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#define PT_R6 (PT_R7+4) |
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#define PT_R5 (PT_R6+4) |
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#define PT_R4 (PT_R5+4) |
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#define PT_R3 (PT_R4+4) |
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#define PT_R2 (PT_R3+4) |
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#define PT_R1 (PT_R2+4) |
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#define PT_R0 (PT_R1+4) |
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#define PT_ORIG_R0 (PT_R0+4) |
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#define PT_SR PT_SEQSTAT |
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#else |
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/*
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* Here utilize blackfin : dpregs = [pregs + imm16s4] |
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* [pregs + imm16s4] = dpregs |
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* to access defferent saved reg in stack |
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*/ |
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#define PT_R3 0 |
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#define PT_R4 4 |
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#define PT_R2 8 |
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#define PT_R1 12 |
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#define PT_P5 16 |
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#define PT_P4 20 |
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#define PT_P3 24 |
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#define PT_P2 28 |
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#define PT_P1 32 |
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#define PT_P0 36 |
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#define PT_R7 40 |
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#define PT_R6 44 |
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#define PT_R5 48 |
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#define PT_PC 52 |
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#define PT_SEQSTAT 56 /* so-called SR reg */ |
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#define PT_SR PT_SEQSTAT |
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#define PT_ASTAT 60 |
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#define PT_RETS 64 |
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#define PT_A1w 68 |
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#define PT_A0w 72 |
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#define PT_A1x 76 |
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#define PT_A0x 80 |
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#define PT_ORIG_R0 84 |
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#define PT_R0 88 |
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#define PT_USP 92 |
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#define PT_FP 96 |
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#define PT_SP 100 |
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/* Added by HuTao, May26 2003 3:18PM */ |
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#define PT_IPEND 100 |
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/* Add SYSCFG register for single stepping support */ |
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#define PT_SYSCFG 104 |
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#endif |
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#ifndef __ASSEMBLY__ |
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#if defined(NEW_PT_REGS) |
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struct task_struct; |
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/* this struct defines the way the registers are stored on the
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* stack during a system call. |
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*/ |
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stack during a system call. */ |
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struct pt_regs { |
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long orig_pc; |
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long ipend; |
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long syscfg; |
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long seqstat; |
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long rete; |
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long retn; |
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long retx; |
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long pc; |
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long pc; /* PC == RETI */ |
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long rets; |
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long reserved; |
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long reserved; /* Used as scratch during system calls */ |
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long astat; |
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long lb1; |
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long lb0; |
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@ -201,69 +83,116 @@ struct pt_regs { |
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long r1; |
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long r0; |
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long orig_r0; |
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}; |
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#else |
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/* now we don't know what regs the system call will use */ |
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struct pt_regs { |
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long r3; |
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long r4; |
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long r2; |
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long r1; |
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long p5; |
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long p4; |
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long p3; |
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long p2; |
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long p1; |
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long p0; |
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long r7; |
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long r6; |
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long r5; |
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unsigned long pc; |
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unsigned long seqstat; |
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unsigned long astat; |
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unsigned long rets; |
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long a1w; |
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long a0w; |
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long a1x; |
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long a0x; |
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long orig_r0; |
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long r0; |
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long usp; |
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long fp; |
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/*
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* Added for supervisor/user mode switch. |
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* |
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* HuTao May26 03 3:23PM |
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*/ |
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long ipend; |
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long orig_p0; |
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long syscfg; |
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}; |
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#endif |
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/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */ |
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#define PTRACE_GETREGS 12 |
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#define PTRACE_SETREGS 13 /* ptrace signal */ |
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#define PTRACE_GETREGS 12 |
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#define PTRACE_SETREGS 13 /* ptrace signal */ |
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#define PTRACE_GETFDPIC 31 /* get the ELF fdpic loadmap address */ |
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#define PTRACE_GETFDPIC_EXEC 0 /* [addr] request the executable loadmap */ |
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#define PTRACE_GETFDPIC_INTERP 1 /* [addr] request the interpreter loadmap */ |
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#define PS_S (0x0002) |
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#ifdef __KERNEL__ |
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#ifndef PS_S |
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#define PS_S (0x0c00) |
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/* user_mode returns true if only one bit is set in IPEND, other than the
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master interrupt enable. */ |
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#define user_mode(regs) (!(((regs)->ipend & ~0x10) & (((regs)->ipend & ~0x10) - 1))) |
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#define instruction_pointer(regs) ((regs)->pc) |
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#define user_stack_pointer(regs) ((regs)->usp) |
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#define profile_pc(regs) instruction_pointer(regs) |
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extern void show_regs(struct pt_regs *); |
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#define arch_has_single_step() (1) |
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extern void user_enable_single_step(struct task_struct *); |
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/* see arch/blackfin/kernel/ptrace.c about this redirect */ |
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#define user_disable_single_step(child) ptrace_disable(child) |
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/* Bit 11:10 of SEQSTAT defines user/supervisor/debug mode
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* 00: user |
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* 01: supervisor |
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* 1x: debug |
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/*
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* Get the address of the live pt_regs for the specified task. |
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* These are saved onto the top kernel stack when the process |
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* is not running. |
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* |
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* Note: if a user thread is execve'd from kernel space, the |
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* kernel stack will not be empty on entry to the kernel, so |
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* ptracing these tasks will fail. |
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*/ |
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#define task_pt_regs(task) \ |
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(struct pt_regs *) \
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((unsigned long)task_stack_page(task) + \
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(THREAD_SIZE - sizeof(struct pt_regs))) |
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#define PS_M (0x1000) /* I am not sure why this is required here Akbar */ |
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#endif |
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#endif /* __KERNEL__ */ |
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#define user_mode(regs) (!((regs)->seqstat & PS_S)) |
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#define instruction_pointer(regs) ((regs)->pc) |
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extern void show_regs(struct pt_regs *); |
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#endif /* __ASSEMBLY__ */ |
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/*
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* Offsets used by 'ptrace' system call interface. |
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*/ |
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#endif |
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#endif |
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#endif |
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#define PT_R0 204 |
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#define PT_R1 200 |
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#define PT_R2 196 |
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#define PT_R3 192 |
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#define PT_R4 188 |
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#define PT_R5 184 |
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#define PT_R6 180 |
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#define PT_R7 176 |
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#define PT_P0 172 |
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#define PT_P1 168 |
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#define PT_P2 164 |
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#define PT_P3 160 |
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#define PT_P4 156 |
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#define PT_P5 152 |
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#define PT_FP 148 |
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#define PT_USP 144 |
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#define PT_I0 140 |
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#define PT_I1 136 |
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#define PT_I2 132 |
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#define PT_I3 128 |
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#define PT_M0 124 |
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#define PT_M1 120 |
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#define PT_M2 116 |
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#define PT_M3 112 |
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#define PT_L0 108 |
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#define PT_L1 104 |
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#define PT_L2 100 |
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#define PT_L3 96 |
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#define PT_B0 92 |
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#define PT_B1 88 |
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#define PT_B2 84 |
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#define PT_B3 80 |
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#define PT_A0X 76 |
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#define PT_A0W 72 |
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#define PT_A1X 68 |
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#define PT_A1W 64 |
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#define PT_LC0 60 |
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#define PT_LC1 56 |
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#define PT_LT0 52 |
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#define PT_LT1 48 |
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#define PT_LB0 44 |
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#define PT_LB1 40 |
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#define PT_ASTAT 36 |
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#define PT_RESERVED 32 |
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#define PT_RETS 28 |
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#define PT_PC 24 |
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#define PT_RETX 20 |
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#define PT_RETN 16 |
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#define PT_RETE 12 |
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#define PT_SEQSTAT 8 |
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#define PT_IPEND 4 |
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#define PT_ORIG_R0 208 |
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#define PT_ORIG_P0 212 |
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#define PT_SYSCFG 216 |
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#define PT_TEXT_ADDR 220 |
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#define PT_TEXT_END_ADDR 224 |
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#define PT_DATA_ADDR 228 |
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#define PT_FDPIC_EXEC 232 |
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#define PT_FDPIC_INTERP 236 |
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#endif /* _BFIN_PTRACE_H */ |
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Wolfgang Denk
15 years ago