| /* |
| * Copyright 2004-2008 Analog Devices Inc. |
| * |
| * Licensed under the GPL-2 or later. |
| */ |
| |
| #ifndef _BFIN_PTRACE_H |
| #define _BFIN_PTRACE_H |
| |
| /* |
| * 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 |
| */ |
| |
| #ifndef __ASSEMBLY__ |
| |
| struct task_struct; |
| |
| /* this struct defines the way the registers are stored on the |
| stack during a system call. */ |
| |
| struct pt_regs { |
| long orig_pc; |
| long ipend; |
| long seqstat; |
| long rete; |
| long retn; |
| long retx; |
| long pc; /* PC == RETI */ |
| long rets; |
| long reserved; /* Used as scratch during system calls */ |
| 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; |
| long orig_p0; |
| long syscfg; |
| }; |
| |
| /* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */ |
| #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__ |
| |
| /* 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 arch_has_single_step() (1) |
| /* common code demands this function */ |
| #define ptrace_disable(child) user_disable_single_step(child) |
| #define current_user_stack_pointer() rdusp() |
| |
| extern int is_user_addr_valid(struct task_struct *child, |
| unsigned long start, unsigned long len); |
| |
| /* |
| * 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))) |
| |
| #include <asm-generic/ptrace.h> |
| |
| #endif /* __KERNEL__ */ |
| |
| #endif /* __ASSEMBLY__ */ |
| |
| /* |
| * Offsets used by 'ptrace' system call interface. |
| */ |
| |
| #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 |
| |
| #define PT_LAST_PSEUDO PT_FDPIC_INTERP |
| |
| #endif /* _BFIN_PTRACE_H */ |