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Diffstat (limited to 'include/asm-blackfin/ptrace.h')
| -rw-r--r-- | include/asm-blackfin/ptrace.h | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/include/asm-blackfin/ptrace.h b/include/asm-blackfin/ptrace.h new file mode 100644 index 0000000..afd5777 --- /dev/null +++ b/include/asm-blackfin/ptrace.h @@ -0,0 +1,269 @@ +/* + * U-boot - ptrace.h + * + * Copyright (c) 2005 blackfin.uclinux.org + * + * 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., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _BLACKFIN_PTRACE_H +#define _BLACKFIN_PTRACE_H + +#define NEW_PT_REGS + +/* + * GCC defines register number like this: + * ----------------------------- + * 0 - 7 are data registers R0-R7 + * 8 - 15 are address registers P0-P7 + * 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) +/* this struct defines the way the registers are stored on the + * stack during a system call. + */ +struct pt_regs { + long ipend; + long syscfg; + long seqstat; + long rete; + long retn; + long retx; + long pc; + long rets; + long reserved; + long astat; + long lb1; + long lb0; + long lt1; + long lt0; + long lc1; + long lc0; + long a1w; + long a1x; + long a0w; + long a0x; + long b3; + long b2; + long b1; + long b0; + long l3; + long l2; + long l1; + long l0; + long m3; + long m2; + long m1; + long m0; + long i3; + long i2; + long i1; + long i0; + long usp; + long fp; + long p5; + long p4; + long p3; + long p2; + long p1; + long p0; + long r7; + long r6; + long r5; + long r4; + long r3; + long r2; + 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 syscfg; +}; + +#endif + +/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */ +#define PTRACE_GETREGS 12 +#define PTRACE_SETREGS 13 /* ptrace signal */ + +#ifdef __KERNEL__ + +#ifndef PS_S +#define PS_S (0x0c00) + +/* Bit 11:10 of SEQSTAT defines user/supervisor/debug mode + * 00: user + * 01: supervisor + * 1x: debug + */ + +#define PS_M (0x1000) /* I am not sure why this is required here Akbar */ +#endif + +#define user_mode(regs) (!((regs)->seqstat & PS_S)) +#define instruction_pointer(regs) ((regs)->pc) +extern void show_regs(struct pt_regs *); + +#endif +#endif +#endif |