[mirror_ubuntu-focal-kernel.git] / arch / cris / include / uapi / asm / ptrace_v10.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#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)

#endif  /*  __KERNEL__  */

#endif
Commit	Line	Data
6f52b16c	1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
1da177e4 LT	2	#ifndef _CRIS_ARCH_PTRACE_H
	3	#define _CRIS_ARCH_PTRACE_H
	4
	5	/* Frame types */
	6
	7	#define CRIS_FRAME_NORMAL 0 /* normal frame without SBFS stacking */
	8	#define CRIS_FRAME_BUSFAULT 1 /* frame stacked using SBFS, need RBF return
	9	path */
	10
	11	/* Register numbers in the ptrace system call interface */
	12
	13	#define PT_FRAMETYPE 0
	14	#define PT_ORIG_R10 1
	15	#define PT_R13 2
	16	#define PT_R12 3
	17	#define PT_R11 4
	18	#define PT_R10 5
	19	#define PT_R9 6
	20	#define PT_R8 7
	21	#define PT_R7 8
	22	#define PT_R6 9
	23	#define PT_R5 10
	24	#define PT_R4 11
	25	#define PT_R3 12
	26	#define PT_R2 13
	27	#define PT_R1 14
	28	#define PT_R0 15
	29	#define PT_MOF 16
	30	#define PT_DCCR 17
	31	#define PT_SRP 18
	32	#define PT_IRP 19 /* This is actually the debugged process' PC */
	33	#define PT_CSRINSTR 20 /* CPU Status record remnants -
	34	valid if frametype == busfault */
	35	#define PT_CSRADDR 21
	36	#define PT_CSRDATA 22
	37	#define PT_USP 23 /* special case - USP is not in the pt_regs */
	38	#define PT_MAX 23
	39
	40	/* Condition code bit numbers. The same numbers apply to CCR of course,
	41	but we use DCCR everywhere else, so let's try and be consistent. */
	42	#define C_DCCR_BITNR 0
	43	#define V_DCCR_BITNR 1
	44	#define Z_DCCR_BITNR 2
	45	#define N_DCCR_BITNR 3
	46	#define X_DCCR_BITNR 4
	47	#define I_DCCR_BITNR 5
	48	#define B_DCCR_BITNR 6
	49	#define M_DCCR_BITNR 7
	50	#define U_DCCR_BITNR 8
	51	#define P_DCCR_BITNR 9
	52	#define F_DCCR_BITNR 10
	53
	54	/* pt_regs not only specifices the format in the user-struct during
	55	* ptrace but is also the frame format used in the kernel prologue/epilogues
	56	* themselves
	57	*/
	58
	59	struct pt_regs {
	60	unsigned long frametype; /* type of stackframe */
	61	unsigned long orig_r10;
	62	/* pushed by movem r13, [sp] in SAVE_ALL, movem pushes backwards */
	63	unsigned long r13;
	64	unsigned long r12;
	65	unsigned long r11;
66	unsigned long r10;
67	unsigned long r9;
68	unsigned long r8;
69	unsigned long r7;
70	unsigned long r6;
71	unsigned long r5;
72	unsigned long r4;
73	unsigned long r3;
74	unsigned long r2;
75	unsigned long r1;
76	unsigned long r0;
77	unsigned long mof;
78	unsigned long dccr;
79	unsigned long srp;
80	unsigned long irp; /* This is actually the debugged process' PC */
81	unsigned long csrinstr;
82	unsigned long csraddr;
83	unsigned long csrdata;
84	};
85
86	/* switch_stack is the extra stuff pushed onto the stack in _resume (entry.S)
87	* when doing a context-switch. it is used (apart from in resume) when a new
88	* thread is made and we need to make _resume (which is starting it for the
89	* first time) realise what is going on.
90	*
91	* Actually, the use is very close to the thread struct (TSS) in that both the
92	* switch_stack and the TSS are used to keep thread stuff when switching in
93	* _resume.
94	*/
95
96	struct switch_stack {
97	unsigned long r9;
98	unsigned long r8;
99	unsigned long r7;
100	unsigned long r6;
101	unsigned long r5;
102	unsigned long r4;
103	unsigned long r3;
104	unsigned long r2;
105	unsigned long r1;
106	unsigned long r0;
107	unsigned long return_ip; /* ip that _resume will return to */
108	};
109
f22ab814 AB	110	#ifdef __KERNEL__
f22ab814 AB	111
1da177e4 LT	112	/* bit 8 is user-mode flag */
	113	#define user_mode(regs) (((regs)->dccr & 0x100) != 0)
	114	#define instruction_pointer(regs) ((regs)->irp)
	115	#define profile_pc(regs) instruction_pointer(regs)
1da177e4	116
f22ab814 AB	117	#endif /* __KERNEL__ */
f22ab814 AB	118
1da177e4	119	#endif