[mirror_ubuntu-bionic-kernel.git] / arch / ia64 / include / uapi / asm / ptrace.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * Copyright (C) 1998-2004 Hewlett-Packard Co
 *	David Mosberger-Tang <davidm@hpl.hp.com>
 *	Stephane Eranian <eranian@hpl.hp.com>
 * Copyright (C) 2003 Intel Co
 *	Suresh Siddha <suresh.b.siddha@intel.com>
 *	Fenghua Yu <fenghua.yu@intel.com>
 *	Arun Sharma <arun.sharma@intel.com>
 *
 * 12/07/98	S. Eranian	added pt_regs & switch_stack
 * 12/21/98	D. Mosberger	updated to match latest code
 *  6/17/99	D. Mosberger	added second unat member to "struct switch_stack"
 *
 */
#ifndef _UAPI_ASM_IA64_PTRACE_H
#define _UAPI_ASM_IA64_PTRACE_H

/*
 * When a user process is blocked, its state looks as follows:
 *
 *            +----------------------+	-------	IA64_STK_OFFSET
 *     	      |			     |	 ^
 *            | struct pt_regs       |	 |
 *	      |			     |	 |
 *            +----------------------+	 |
 *	      |			     |	 |
 *     	      |	   memory stack	     |	 |
 *	      |	(growing downwards)  |	 |
 *	      //.....................//	 |
 *					 |
 *	      //.....................//	 |
 *	      |			     |	 |
 *            +----------------------+	 |
 *            | struct switch_stack  |	 |
 *	      |			     |	 |
 *	      +----------------------+	 |
 *	      |			     |	 |
 *	      //.....................//	 |
 *					 |
 *	      //.....................//	 |
 *	      |			     |	 |
 *	      |	 register stack	     |	 |
 *	      |	(growing upwards)    |	 |
 *            |			     |	 |
 *	      +----------------------+	 |  ---	IA64_RBS_OFFSET
 *            |  struct thread_info  |	 |  ^
 *	      +----------------------+	 |  |
 *	      |			     |	 |  |
 *            |  struct task_struct  |	 |  |
 * current -> |			     |   |  |
 *	      +----------------------+ -------
 *
 * Note that ar.ec is not saved explicitly in pt_reg or switch_stack.
 * This is because ar.ec is saved as part of ar.pfs.
 */


#include <asm/fpu.h>


#ifndef __ASSEMBLY__

/*
 * This struct defines the way the registers are saved on system
 * calls.
 *
 * We don't save all floating point register because the kernel
 * is compiled to use only a very small subset, so the other are
 * untouched.
 *
 * THIS STRUCTURE MUST BE A MULTIPLE 16-BYTE IN SIZE
 * (because the memory stack pointer MUST ALWAYS be aligned this way)
 *
 */
struct pt_regs {
	/* The following registers are saved by SAVE_MIN: */
	unsigned long b6;		/* scratch */
	unsigned long b7;		/* scratch */

	unsigned long ar_csd;           /* used by cmp8xchg16 (scratch) */
	unsigned long ar_ssd;           /* reserved for future use (scratch) */

	unsigned long r8;		/* scratch (return value register 0) */
	unsigned long r9;		/* scratch (return value register 1) */
	unsigned long r10;		/* scratch (return value register 2) */
	unsigned long r11;		/* scratch (return value register 3) */

	unsigned long cr_ipsr;		/* interrupted task's psr */
	unsigned long cr_iip;		/* interrupted task's instruction pointer */
	/*
	 * interrupted task's function state; if bit 63 is cleared, it
	 * contains syscall's ar.pfs.pfm:
	 */
	unsigned long cr_ifs;

	unsigned long ar_unat;		/* interrupted task's NaT register (preserved) */
	unsigned long ar_pfs;		/* prev function state  */
	unsigned long ar_rsc;		/* RSE configuration */
	/* The following two are valid only if cr_ipsr.cpl > 0 || ti->flags & _TIF_MCA_INIT */
	unsigned long ar_rnat;		/* RSE NaT */
	unsigned long ar_bspstore;	/* RSE bspstore */

	unsigned long pr;		/* 64 predicate registers (1 bit each) */
	unsigned long b0;		/* return pointer (bp) */
	unsigned long loadrs;		/* size of dirty partition << 16 */

	unsigned long r1;		/* the gp pointer */
	unsigned long r12;		/* interrupted task's memory stack pointer */
	unsigned long r13;		/* thread pointer */

	unsigned long ar_fpsr;		/* floating point status (preserved) */
	unsigned long r15;		/* scratch */

	/* The remaining registers are NOT saved for system calls.  */

	unsigned long r14;		/* scratch */
	unsigned long r2;		/* scratch */
	unsigned long r3;		/* scratch */

	/* The following registers are saved by SAVE_REST: */
	unsigned long r16;		/* scratch */
	unsigned long r17;		/* scratch */
	unsigned long r18;		/* scratch */
	unsigned long r19;		/* scratch */
	unsigned long r20;		/* scratch */
	unsigned long r21;		/* scratch */
	unsigned long r22;		/* scratch */
	unsigned long r23;		/* scratch */
	unsigned long r24;		/* scratch */
	unsigned long r25;		/* scratch */
	unsigned long r26;		/* scratch */
	unsigned long r27;		/* scratch */
	unsigned long r28;		/* scratch */
	unsigned long r29;		/* scratch */
	unsigned long r30;		/* scratch */
	unsigned long r31;		/* scratch */

	unsigned long ar_ccv;		/* compare/exchange value (scratch) */

	/*
	 * Floating point registers that the kernel considers scratch:
	 */
	struct ia64_fpreg f6;		/* scratch */
	struct ia64_fpreg f7;		/* scratch */
	struct ia64_fpreg f8;		/* scratch */
	struct ia64_fpreg f9;		/* scratch */
	struct ia64_fpreg f10;		/* scratch */
	struct ia64_fpreg f11;		/* scratch */
};

/*
 * This structure contains the addition registers that need to
 * preserved across a context switch.  This generally consists of
 * "preserved" registers.
 */
struct switch_stack {
	unsigned long caller_unat;	/* user NaT collection register (preserved) */
	unsigned long ar_fpsr;		/* floating-point status register */

	struct ia64_fpreg f2;		/* preserved */
	struct ia64_fpreg f3;		/* preserved */
	struct ia64_fpreg f4;		/* preserved */
	struct ia64_fpreg f5;		/* preserved */

	struct ia64_fpreg f12;		/* scratch, but untouched by kernel */
	struct ia64_fpreg f13;		/* scratch, but untouched by kernel */
	struct ia64_fpreg f14;		/* scratch, but untouched by kernel */
	struct ia64_fpreg f15;		/* scratch, but untouched by kernel */
	struct ia64_fpreg f16;		/* preserved */
	struct ia64_fpreg f17;		/* preserved */
	struct ia64_fpreg f18;		/* preserved */
	struct ia64_fpreg f19;		/* preserved */
	struct ia64_fpreg f20;		/* preserved */
	struct ia64_fpreg f21;		/* preserved */
	struct ia64_fpreg f22;		/* preserved */
	struct ia64_fpreg f23;		/* preserved */
	struct ia64_fpreg f24;		/* preserved */
	struct ia64_fpreg f25;		/* preserved */
	struct ia64_fpreg f26;		/* preserved */
	struct ia64_fpreg f27;		/* preserved */
	struct ia64_fpreg f28;		/* preserved */
	struct ia64_fpreg f29;		/* preserved */
	struct ia64_fpreg f30;		/* preserved */
	struct ia64_fpreg f31;		/* preserved */

	unsigned long r4;		/* preserved */
	unsigned long r5;		/* preserved */
	unsigned long r6;		/* preserved */
	unsigned long r7;		/* preserved */

	unsigned long b0;		/* so we can force a direct return in copy_thread */
	unsigned long b1;
	unsigned long b2;
	unsigned long b3;
	unsigned long b4;
	unsigned long b5;

	unsigned long ar_pfs;		/* previous function state */
	unsigned long ar_lc;		/* loop counter (preserved) */
	unsigned long ar_unat;		/* NaT bits for r4-r7 */
	unsigned long ar_rnat;		/* RSE NaT collection register */
	unsigned long ar_bspstore;	/* RSE dirty base (preserved) */
	unsigned long pr;		/* 64 predicate registers (1 bit each) */
};


/* pt_all_user_regs is used for PTRACE_GETREGS PTRACE_SETREGS */
struct pt_all_user_regs {
	unsigned long nat;
	unsigned long cr_iip;
	unsigned long cfm;
	unsigned long cr_ipsr;
	unsigned long pr;

	unsigned long gr[32];
	unsigned long br[8];
	unsigned long ar[128];
	struct ia64_fpreg fr[128];
};

#endif /* !__ASSEMBLY__ */

/* indices to application-registers array in pt_all_user_regs */
#define PT_AUR_RSC	16
#define PT_AUR_BSP	17
#define PT_AUR_BSPSTORE	18
#define PT_AUR_RNAT	19
#define PT_AUR_CCV	32
#define PT_AUR_UNAT	36
#define PT_AUR_FPSR	40
#define PT_AUR_PFS	64
#define PT_AUR_LC	65
#define PT_AUR_EC	66

/*
 * The numbers chosen here are somewhat arbitrary but absolutely MUST
 * not overlap with any of the number assigned in <linux/ptrace.h>.
 */
#define PTRACE_SINGLEBLOCK	12	/* resume execution until next branch */
#define PTRACE_OLD_GETSIGINFO	13	/* (replaced by PTRACE_GETSIGINFO in <linux/ptrace.h>)  */
#define PTRACE_OLD_SETSIGINFO	14	/* (replaced by PTRACE_SETSIGINFO in <linux/ptrace.h>)  */
#define PTRACE_GETREGS		18	/* get all registers (pt_all_user_regs) in one shot */
#define PTRACE_SETREGS		19	/* set all registers (pt_all_user_regs) in one shot */

#define PTRACE_OLDSETOPTIONS	21

#endif /* _UAPI_ASM_IA64_PTRACE_H */
Commit	Line	Data
6f52b16c	1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
43e40f25 DH	2	/*
	3	* Copyright (C) 1998-2004 Hewlett-Packard Co
	4	* David Mosberger-Tang <davidm@hpl.hp.com>
	5	* Stephane Eranian <eranian@hpl.hp.com>
	6	* Copyright (C) 2003 Intel Co
	7	* Suresh Siddha <suresh.b.siddha@intel.com>
	8	* Fenghua Yu <fenghua.yu@intel.com>
	9	* Arun Sharma <arun.sharma@intel.com>
	10	*
	11	* 12/07/98 S. Eranian added pt_regs & switch_stack
	12	* 12/21/98 D. Mosberger updated to match latest code
	13	* 6/17/99 D. Mosberger added second unat member to "struct switch_stack"
	14	*
	15	*/
	16	#ifndef _UAPI_ASM_IA64_PTRACE_H
	17	#define _UAPI_ASM_IA64_PTRACE_H
	18
	19	/*
	20	* When a user process is blocked, its state looks as follows:
	21	*
	22	* +----------------------+ ------- IA64_STK_OFFSET
	23	* \| \| ^
	24	* \| struct pt_regs \| \|
	25	* \| \| \|
	26	* +----------------------+ \|
	27	* \| \| \|
	28	* \| memory stack \| \|
	29	* \| (growing downwards) \| \|
	30	* //.....................// \|
	31	* \|
	32	* //.....................// \|
	33	* \| \| \|
	34	* +----------------------+ \|
	35	* \| struct switch_stack \| \|
	36	* \| \| \|
	37	* +----------------------+ \|
	38	* \| \| \|
	39	* //.....................// \|
	40	* \|
	41	* //.....................// \|
	42	* \| \| \|
	43	* \| register stack \| \|
	44	* \| (growing upwards) \| \|
	45	* \| \| \|
	46	* +----------------------+ \| --- IA64_RBS_OFFSET
	47	* \| struct thread_info \| \| ^
	48	* +----------------------+ \| \|
	49	* \| \| \| \|
	50	* \| struct task_struct \| \| \|
	51	* current -> \| \| \| \|
	52	* +----------------------+ -------
	53	*
	54	* Note that ar.ec is not saved explicitly in pt_reg or switch_stack.
	55	* This is because ar.ec is saved as part of ar.pfs.
	56	*/
	57
	58
	59	#include <asm/fpu.h>
	60
	61
	62	#ifndef __ASSEMBLY__
	63
	64	/*
	65	* This struct defines the way the registers are saved on system
66	* calls.
67	*
68	* We don't save all floating point register because the kernel
69	* is compiled to use only a very small subset, so the other are
70	* untouched.
71	*
72	* THIS STRUCTURE MUST BE A MULTIPLE 16-BYTE IN SIZE
73	* (because the memory stack pointer MUST ALWAYS be aligned this way)
74	*
75	*/
76	struct pt_regs {
77	/* The following registers are saved by SAVE_MIN: */
78	unsigned long b6; /* scratch */
79	unsigned long b7; /* scratch */
80
81	unsigned long ar_csd; /* used by cmp8xchg16 (scratch) */
82	unsigned long ar_ssd; /* reserved for future use (scratch) */
83
84	unsigned long r8; /* scratch (return value register 0) */
85	unsigned long r9; /* scratch (return value register 1) */
86	unsigned long r10; /* scratch (return value register 2) */
87	unsigned long r11; /* scratch (return value register 3) */
88
89	unsigned long cr_ipsr; /* interrupted task's psr */
90	unsigned long cr_iip; /* interrupted task's instruction pointer */
91	/*
92	* interrupted task's function state; if bit 63 is cleared, it
93	* contains syscall's ar.pfs.pfm:
94	*/
95	unsigned long cr_ifs;
96
97	unsigned long ar_unat; /* interrupted task's NaT register (preserved) */
98	unsigned long ar_pfs; /* prev function state */
99	unsigned long ar_rsc; /* RSE configuration */
100	/* The following two are valid only if cr_ipsr.cpl > 0 \|\| ti->flags & _TIF_MCA_INIT */
101	unsigned long ar_rnat; /* RSE NaT */
102	unsigned long ar_bspstore; /* RSE bspstore */
103
104	unsigned long pr; /* 64 predicate registers (1 bit each) */
105	unsigned long b0; /* return pointer (bp) */
106	unsigned long loadrs; /* size of dirty partition << 16 */
107
108	unsigned long r1; /* the gp pointer */
109	unsigned long r12; /* interrupted task's memory stack pointer */
110	unsigned long r13; /* thread pointer */
111
112	unsigned long ar_fpsr; /* floating point status (preserved) */
113	unsigned long r15; /* scratch */
114
115	/* The remaining registers are NOT saved for system calls. */
116
117	unsigned long r14; /* scratch */
118	unsigned long r2; /* scratch */
119	unsigned long r3; /* scratch */
120
121	/* The following registers are saved by SAVE_REST: */
122	unsigned long r16; /* scratch */
123	unsigned long r17; /* scratch */
124	unsigned long r18; /* scratch */
125	unsigned long r19; /* scratch */
126	unsigned long r20; /* scratch */
127	unsigned long r21; /* scratch */
128	unsigned long r22; /* scratch */
129	unsigned long r23; /* scratch */
130	unsigned long r24; /* scratch */
131	unsigned long r25; /* scratch */
132	unsigned long r26; /* scratch */
133	unsigned long r27; /* scratch */
134	unsigned long r28; /* scratch */
135	unsigned long r29; /* scratch */
136	unsigned long r30; /* scratch */
137	unsigned long r31; /* scratch */
138
139	unsigned long ar_ccv; /* compare/exchange value (scratch) */
140
141	/*
142	* Floating point registers that the kernel considers scratch:
143	*/
144	struct ia64_fpreg f6; /* scratch */
145	struct ia64_fpreg f7; /* scratch */
146	struct ia64_fpreg f8; /* scratch */
147	struct ia64_fpreg f9; /* scratch */
148	struct ia64_fpreg f10; /* scratch */
149	struct ia64_fpreg f11; /* scratch */
150	};
151
152	/*
153	* This structure contains the addition registers that need to
154	* preserved across a context switch. This generally consists of
155	* "preserved" registers.
156	*/
157	struct switch_stack {
158	unsigned long caller_unat; /* user NaT collection register (preserved) */
159	unsigned long ar_fpsr; /* floating-point status register */
160
161	struct ia64_fpreg f2; /* preserved */
162	struct ia64_fpreg f3; /* preserved */
163	struct ia64_fpreg f4; /* preserved */
164	struct ia64_fpreg f5; /* preserved */
165
166	struct ia64_fpreg f12; /* scratch, but untouched by kernel */
167	struct ia64_fpreg f13; /* scratch, but untouched by kernel */
168	struct ia64_fpreg f14; /* scratch, but untouched by kernel */
169	struct ia64_fpreg f15; /* scratch, but untouched by kernel */
170	struct ia64_fpreg f16; /* preserved */
171	struct ia64_fpreg f17; /* preserved */
172	struct ia64_fpreg f18; /* preserved */
173	struct ia64_fpreg f19; /* preserved */
174	struct ia64_fpreg f20; /* preserved */
175	struct ia64_fpreg f21; /* preserved */
176	struct ia64_fpreg f22; /* preserved */
177	struct ia64_fpreg f23; /* preserved */
178	struct ia64_fpreg f24; /* preserved */
179	struct ia64_fpreg f25; /* preserved */
180	struct ia64_fpreg f26; /* preserved */
181	struct ia64_fpreg f27; /* preserved */
182	struct ia64_fpreg f28; /* preserved */
183	struct ia64_fpreg f29; /* preserved */
184	struct ia64_fpreg f30; /* preserved */
185	struct ia64_fpreg f31; /* preserved */
186
187	unsigned long r4; /* preserved */
188	unsigned long r5; /* preserved */
189	unsigned long r6; /* preserved */
190	unsigned long r7; /* preserved */
191
192	unsigned long b0; /* so we can force a direct return in copy_thread */
193	unsigned long b1;
194	unsigned long b2;
195	unsigned long b3;
196	unsigned long b4;
197	unsigned long b5;
198
199	unsigned long ar_pfs; /* previous function state */
200	unsigned long ar_lc; /* loop counter (preserved) */
201	unsigned long ar_unat; /* NaT bits for r4-r7 */
202	unsigned long ar_rnat; /* RSE NaT collection register */
203	unsigned long ar_bspstore; /* RSE dirty base (preserved) */
204	unsigned long pr; /* 64 predicate registers (1 bit each) */
205	};
206
207
208	/* pt_all_user_regs is used for PTRACE_GETREGS PTRACE_SETREGS */
209	struct pt_all_user_regs {
210	unsigned long nat;
211	unsigned long cr_iip;
212	unsigned long cfm;
213	unsigned long cr_ipsr;
214	unsigned long pr;
215
216	unsigned long gr[32];
217	unsigned long br[8];
218	unsigned long ar[128];
219	struct ia64_fpreg fr[128];
220	};
221
222	#endif /* !__ASSEMBLY__ */
223
224	/* indices to application-registers array in pt_all_user_regs */
225	#define PT_AUR_RSC 16
226	#define PT_AUR_BSP 17
227	#define PT_AUR_BSPSTORE 18
228	#define PT_AUR_RNAT 19
229	#define PT_AUR_CCV 32
230	#define PT_AUR_UNAT 36
231	#define PT_AUR_FPSR 40
232	#define PT_AUR_PFS 64
233	#define PT_AUR_LC 65
234	#define PT_AUR_EC 66
235
236	/*
237	* The numbers chosen here are somewhat arbitrary but absolutely MUST
238	* not overlap with any of the number assigned in <linux/ptrace.h>.
239	*/
240	#define PTRACE_SINGLEBLOCK 12 /* resume execution until next branch */
241	#define PTRACE_OLD_GETSIGINFO 13 /* (replaced by PTRACE_GETSIGINFO in <linux/ptrace.h>) */
242	#define PTRACE_OLD_SETSIGINFO 14 /* (replaced by PTRACE_SETSIGINFO in <linux/ptrace.h>) */
243	#define PTRACE_GETREGS 18 /* get all registers (pt_all_user_regs) in one shot */
244	#define PTRACE_SETREGS 19 /* set all registers (pt_all_user_regs) in one shot */
245
246	#define PTRACE_OLDSETOPTIONS 21
247
248	#endif /* _UAPI_ASM_IA64_PTRACE_H */