[net-next-2.6.git] / arch / cris / include / arch-v10 / arch / ptrace.h

#ifndef _CRIS_ARCH_PTRACE_H
#define _CRIS_ARCH_PTRACE_H

/* Frame types */

#define CRIS_FRAME_NORMAL   0 /* normal frame without SBFS stacking */
#define CRIS_FRAME_BUSFAULT 1 /* frame stacked using SBFS, need RBF return
				 path */

/* Register numbers in the ptrace system call interface */

#define PT_FRAMETYPE 0
#define PT_ORIG_R10  1
#define PT_R13       2
#define PT_R12       3
#define PT_R11       4
#define PT_R10       5
#define PT_R9        6
#define PT_R8        7
#define PT_R7        8
#define PT_R6        9
#define PT_R5        10
#define PT_R4        11
#define PT_R3        12
#define PT_R2        13
#define PT_R1        14
#define PT_R0        15
#define PT_MOF       16
#define PT_DCCR      17
#define PT_SRP       18
#define PT_IRP       19    /* This is actually the debugged process' PC */
#define PT_CSRINSTR  20    /* CPU Status record remnants -
			      valid if frametype == busfault */
#define PT_CSRADDR   21
#define PT_CSRDATA   22
#define PT_USP       23    /* special case - USP is not in the pt_regs */
#define PT_MAX       23

/* Condition code bit numbers.  The same numbers apply to CCR of course,
   but we use DCCR everywhere else, so let's try and be consistent.  */
#define C_DCCR_BITNR 0
#define V_DCCR_BITNR 1
#define Z_DCCR_BITNR 2
#define N_DCCR_BITNR 3
#define X_DCCR_BITNR 4
#define I_DCCR_BITNR 5
#define B_DCCR_BITNR 6
#define M_DCCR_BITNR 7
#define U_DCCR_BITNR 8
#define P_DCCR_BITNR 9
#define F_DCCR_BITNR 10

/* pt_regs not only specifices the format in the user-struct during
 * ptrace but is also the frame format used in the kernel prologue/epilogues 
 * themselves
 */

struct pt_regs {
	unsigned long frametype;  /* type of stackframe */
	unsigned long orig_r10;
	/* pushed by movem r13, [sp] in SAVE_ALL, movem pushes backwards */
	unsigned long r13;
	unsigned long r12;
	unsigned long r11;
	unsigned long r10;
	unsigned long r9;
	unsigned long r8;
	unsigned long r7;
	unsigned long r6;
	unsigned long r5;
	unsigned long r4;
	unsigned long r3;
	unsigned long r2;
	unsigned long r1;
	unsigned long r0;
	unsigned long mof;
	unsigned long dccr;
	unsigned long srp;
	unsigned long irp; /* This is actually the debugged process' PC */
	unsigned long csrinstr;
	unsigned long csraddr;
	unsigned long csrdata;
};

/* switch_stack is the extra stuff pushed onto the stack in _resume (entry.S)
 * when doing a context-switch. it is used (apart from in resume) when a new
 * thread is made and we need to make _resume (which is starting it for the
 * first time) realise what is going on.
 *
 * Actually, the use is very close to the thread struct (TSS) in that both the
 * switch_stack and the TSS are used to keep thread stuff when switching in
 * _resume.
 */

struct switch_stack {
	unsigned long r9;
	unsigned long r8;
	unsigned long r7;
	unsigned long r6;
	unsigned long r5;
	unsigned long r4;
	unsigned long r3;
	unsigned long r2;
	unsigned long r1;
	unsigned long r0;
	unsigned long return_ip; /* ip that _resume will return to */
};

#ifdef __KERNEL__

/* bit 8 is user-mode flag */
#define user_mode(regs) (((regs)->dccr & 0x100) != 0)
#define instruction_pointer(regs) ((regs)->irp)
#define profile_pc(regs) instruction_pointer(regs)
extern void show_regs(struct pt_regs *);

#endif  /*  __KERNEL__  */

#endif
Commit	Line	Data
1da177e4 LT	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
f22ab814 AB	109	#ifdef __KERNEL__
f22ab814 AB	110
1da177e4 LT	111	/* bit 8 is user-mode flag */
	112	#define user_mode(regs) (((regs)->dccr & 0x100) != 0)
	113	#define instruction_pointer(regs) ((regs)->irp)
	114	#define profile_pc(regs) instruction_pointer(regs)
	115	extern void show_regs(struct pt_regs *);
	116
f22ab814 AB	117	#endif /* __KERNEL__ */
f22ab814 AB	118
1da177e4	119	#endif