1 #ifndef _CRIS_PTRACE_H 2 #define _CRIS_PTRACE_H 3 4 /* Register numbers in the ptrace system call interface */ 5 6 #define PT_FRAMETYPE 0 7 #define PT_ORIG_R10 1 8 #define PT_R13 2 9 #define PT_R12 3 10 #define PT_R11 4 11 #define PT_R10 5 12 #define PT_R9 6 13 #define PT_R8 7 14 #define PT_R7 8 15 #define PT_R6 9 16 #define PT_R5 10 17 #define PT_R4 11 18 #define PT_R3 12 19 #define PT_R2 13 20 #define PT_R1 14 21 #define PT_R0 15 22 #define PT_MOF 16 23 #define PT_DCCR 17 24 #define PT_SRP 18 25 #define PT_IRP 19 /* This is actually the debugged process' PC */ 26 #define PT_CSRINSTR 20 /* CPU Status record remnants - 27 valid if frametype == busfault */ 28 #define PT_CSRADDR 21 29 #define PT_CSRDATA 22 30 #define PT_USP 23 /* special case - USP is not in the pt_regs */ 31 #define PT_MAX 23 32 33 /* Condition code bit numbers. The same numbers apply to CCR of course, 34 but we use DCCR everywhere else, so let's try and be consistent. */ 35 #define C_DCCR_BITNR 0 36 #define V_DCCR_BITNR 1 37 #define Z_DCCR_BITNR 2 38 #define N_DCCR_BITNR 3 39 #define X_DCCR_BITNR 4 40 #define I_DCCR_BITNR 5 41 #define B_DCCR_BITNR 6 42 #define M_DCCR_BITNR 7 43 #define U_DCCR_BITNR 8 44 #define P_DCCR_BITNR 9 45 #define F_DCCR_BITNR 10 46 47 /* Frame types */ 48 49 #define CRIS_FRAME_NORMAL 0 /* normal frame without SBFS stacking */ 50 #define CRIS_FRAME_BUSFAULT 1 /* frame stacked using SBFS, need RBF return 51 path */ 52 53 /* pt_regs not only specifices the format in the user-struct during 54 * ptrace but is also the frame format used in the kernel prologue/epilogues 55 * themselves 56 */ 57 58 struct pt_regs { 59 unsigned long frametype; /* type of stackframe */ 60 unsigned long orig_r10; 61 /* pushed by movem r13, [sp] in SAVE_ALL, movem pushes backwards */ 62 unsigned long r13; 63 unsigned long r12; 64 unsigned long r11; 65 unsigned long r10; 66 unsigned long r9; 67 unsigned long r8; 68 unsigned long r7; 69 unsigned long r6; 70 unsigned long r5; 71 unsigned long r4; 72 unsigned long r3; 73 unsigned long r2; 74 unsigned long r1; 75 unsigned long r0; 76 unsigned long mof; 77 unsigned long dccr; 78 unsigned long srp; 79 unsigned long irp; /* This is actually the debugged process' PC */ 80 unsigned long csrinstr; 81 unsigned long csraddr; 82 unsigned long csrdata; 83 }; 84 85 /* switch_stack is the extra stuff pushed onto the stack in _resume (entry.S) 86 * when doing a context-switch. it is used (apart from in resume) when a new 87 * thread is made and we need to make _resume (which is starting it for the 88 * first time) realise what is going on. 89 * 90 * Actually, the use is very close to the thread struct (TSS) in that both the 91 * switch_stack and the TSS are used to keep thread stuff when switching in 92 * _resume. 93 */ 94 95 struct switch_stack { 96 unsigned long r9; 97 unsigned long r8; 98 unsigned long r7; 99 unsigned long r6; 100 unsigned long r5; 101 unsigned long r4; 102 unsigned long r3; 103 unsigned long r2; 104 unsigned long r1; 105 unsigned long r0; 106 unsigned long return_ip; /* ip that _resume will return to */ 107 }; 108 109 #ifdef __KERNEL__ 110 /* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */ 111 #define PTRACE_GETREGS 12 112 #define PTRACE_SETREGS 13 113 114 /* bit 8 is user-mode flag */ 115 #define user_mode(regs) (((regs)->dccr & 0x100) != 0) 116 #define instruction_pointer(regs) ((regs)->irp) 117 extern void show_regs(struct pt_regs *); 118 #endif 119 120 #endif /* _CRIS_PTRACE_H */ 121