| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _CRIS_ARCH_PTRACE_H |
| 2 | #define _CRIS_ARCH_PTRACE_H |
| 3 | |
| 4 | /* Frame types */ |
| 5 | |
| 6 | #define CRIS_FRAME_NORMAL 0 /* normal frame without SBFS stacking */ |
| 7 | #define CRIS_FRAME_BUSFAULT 1 /* frame stacked using SBFS, need RBF return |
| 8 | path */ |
| 9 | |
| 10 | /* Register numbers in the ptrace system call interface */ |
| 11 | |
| 12 | #define PT_FRAMETYPE 0 |
| 13 | #define PT_ORIG_R10 1 |
| 14 | #define PT_R13 2 |
| 15 | #define PT_R12 3 |
| 16 | #define PT_R11 4 |
| 17 | #define PT_R10 5 |
| 18 | #define PT_R9 6 |
| 19 | #define PT_R8 7 |
| 20 | #define PT_R7 8 |
| 21 | #define PT_R6 9 |
| 22 | #define PT_R5 10 |
| 23 | #define PT_R4 11 |
| 24 | #define PT_R3 12 |
| 25 | #define PT_R2 13 |
| 26 | #define PT_R1 14 |
| 27 | #define PT_R0 15 |
| 28 | #define PT_MOF 16 |
| 29 | #define PT_DCCR 17 |
| 30 | #define PT_SRP 18 |
| 31 | #define PT_IRP 19 /* This is actually the debugged process' PC */ |
| 32 | #define PT_CSRINSTR 20 /* CPU Status record remnants - |
| 33 | valid if frametype == busfault */ |
| 34 | #define PT_CSRADDR 21 |
| 35 | #define PT_CSRDATA 22 |
| 36 | #define PT_USP 23 /* special case - USP is not in the pt_regs */ |
| 37 | #define PT_MAX 23 |
| 38 | |
| 39 | /* Condition code bit numbers. The same numbers apply to CCR of course, |
| 40 | but we use DCCR everywhere else, so let's try and be consistent. */ |
| 41 | #define C_DCCR_BITNR 0 |
| 42 | #define V_DCCR_BITNR 1 |
| 43 | #define Z_DCCR_BITNR 2 |
| 44 | #define N_DCCR_BITNR 3 |
| 45 | #define X_DCCR_BITNR 4 |
| 46 | #define I_DCCR_BITNR 5 |
| 47 | #define B_DCCR_BITNR 6 |
| 48 | #define M_DCCR_BITNR 7 |
| 49 | #define U_DCCR_BITNR 8 |
| 50 | #define P_DCCR_BITNR 9 |
| 51 | #define F_DCCR_BITNR 10 |
| 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 | /* bit 8 is user-mode flag */ |
| 110 | #define user_mode(regs) (((regs)->dccr & 0x100) != 0) |
| 111 | #define instruction_pointer(regs) ((regs)->irp) |
| 112 | #define profile_pc(regs) instruction_pointer(regs) |
| 113 | extern void show_regs(struct pt_regs *); |
| 114 | |
| 115 | #endif |