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6f52b16c | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
9807f759 DH |
2 | /* |
3 | * S390 version | |
4 | * Copyright IBM Corp. 1999, 2000 | |
5 | * Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com) | |
6 | */ | |
7 | ||
8 | #ifndef _UAPI_S390_PTRACE_H | |
9 | #define _UAPI_S390_PTRACE_H | |
10 | ||
11 | /* | |
12 | * Offsets in the user_regs_struct. They are used for the ptrace | |
13 | * system call and in entry.S | |
14 | */ | |
15 | #ifndef __s390x__ | |
16 | ||
17 | #define PT_PSWMASK 0x00 | |
18 | #define PT_PSWADDR 0x04 | |
19 | #define PT_GPR0 0x08 | |
20 | #define PT_GPR1 0x0C | |
21 | #define PT_GPR2 0x10 | |
22 | #define PT_GPR3 0x14 | |
23 | #define PT_GPR4 0x18 | |
24 | #define PT_GPR5 0x1C | |
25 | #define PT_GPR6 0x20 | |
26 | #define PT_GPR7 0x24 | |
27 | #define PT_GPR8 0x28 | |
28 | #define PT_GPR9 0x2C | |
29 | #define PT_GPR10 0x30 | |
30 | #define PT_GPR11 0x34 | |
31 | #define PT_GPR12 0x38 | |
32 | #define PT_GPR13 0x3C | |
33 | #define PT_GPR14 0x40 | |
34 | #define PT_GPR15 0x44 | |
35 | #define PT_ACR0 0x48 | |
36 | #define PT_ACR1 0x4C | |
37 | #define PT_ACR2 0x50 | |
38 | #define PT_ACR3 0x54 | |
39 | #define PT_ACR4 0x58 | |
40 | #define PT_ACR5 0x5C | |
41 | #define PT_ACR6 0x60 | |
42 | #define PT_ACR7 0x64 | |
43 | #define PT_ACR8 0x68 | |
44 | #define PT_ACR9 0x6C | |
45 | #define PT_ACR10 0x70 | |
46 | #define PT_ACR11 0x74 | |
47 | #define PT_ACR12 0x78 | |
48 | #define PT_ACR13 0x7C | |
49 | #define PT_ACR14 0x80 | |
50 | #define PT_ACR15 0x84 | |
51 | #define PT_ORIGGPR2 0x88 | |
52 | #define PT_FPC 0x90 | |
53 | /* | |
54 | * A nasty fact of life that the ptrace api | |
55 | * only supports passing of longs. | |
56 | */ | |
57 | #define PT_FPR0_HI 0x98 | |
58 | #define PT_FPR0_LO 0x9C | |
59 | #define PT_FPR1_HI 0xA0 | |
60 | #define PT_FPR1_LO 0xA4 | |
61 | #define PT_FPR2_HI 0xA8 | |
62 | #define PT_FPR2_LO 0xAC | |
63 | #define PT_FPR3_HI 0xB0 | |
64 | #define PT_FPR3_LO 0xB4 | |
65 | #define PT_FPR4_HI 0xB8 | |
66 | #define PT_FPR4_LO 0xBC | |
67 | #define PT_FPR5_HI 0xC0 | |
68 | #define PT_FPR5_LO 0xC4 | |
69 | #define PT_FPR6_HI 0xC8 | |
70 | #define PT_FPR6_LO 0xCC | |
71 | #define PT_FPR7_HI 0xD0 | |
72 | #define PT_FPR7_LO 0xD4 | |
73 | #define PT_FPR8_HI 0xD8 | |
74 | #define PT_FPR8_LO 0XDC | |
75 | #define PT_FPR9_HI 0xE0 | |
76 | #define PT_FPR9_LO 0xE4 | |
77 | #define PT_FPR10_HI 0xE8 | |
78 | #define PT_FPR10_LO 0xEC | |
79 | #define PT_FPR11_HI 0xF0 | |
80 | #define PT_FPR11_LO 0xF4 | |
81 | #define PT_FPR12_HI 0xF8 | |
82 | #define PT_FPR12_LO 0xFC | |
83 | #define PT_FPR13_HI 0x100 | |
84 | #define PT_FPR13_LO 0x104 | |
85 | #define PT_FPR14_HI 0x108 | |
86 | #define PT_FPR14_LO 0x10C | |
87 | #define PT_FPR15_HI 0x110 | |
88 | #define PT_FPR15_LO 0x114 | |
89 | #define PT_CR_9 0x118 | |
90 | #define PT_CR_10 0x11C | |
91 | #define PT_CR_11 0x120 | |
92 | #define PT_IEEE_IP 0x13C | |
93 | #define PT_LASTOFF PT_IEEE_IP | |
94 | #define PT_ENDREGS 0x140-1 | |
95 | ||
96 | #define GPR_SIZE 4 | |
97 | #define CR_SIZE 4 | |
98 | ||
99 | #define STACK_FRAME_OVERHEAD 96 /* size of minimum stack frame */ | |
100 | ||
101 | #else /* __s390x__ */ | |
102 | ||
103 | #define PT_PSWMASK 0x00 | |
104 | #define PT_PSWADDR 0x08 | |
105 | #define PT_GPR0 0x10 | |
106 | #define PT_GPR1 0x18 | |
107 | #define PT_GPR2 0x20 | |
108 | #define PT_GPR3 0x28 | |
109 | #define PT_GPR4 0x30 | |
110 | #define PT_GPR5 0x38 | |
111 | #define PT_GPR6 0x40 | |
112 | #define PT_GPR7 0x48 | |
113 | #define PT_GPR8 0x50 | |
114 | #define PT_GPR9 0x58 | |
115 | #define PT_GPR10 0x60 | |
116 | #define PT_GPR11 0x68 | |
117 | #define PT_GPR12 0x70 | |
118 | #define PT_GPR13 0x78 | |
119 | #define PT_GPR14 0x80 | |
120 | #define PT_GPR15 0x88 | |
121 | #define PT_ACR0 0x90 | |
122 | #define PT_ACR1 0x94 | |
123 | #define PT_ACR2 0x98 | |
124 | #define PT_ACR3 0x9C | |
125 | #define PT_ACR4 0xA0 | |
126 | #define PT_ACR5 0xA4 | |
127 | #define PT_ACR6 0xA8 | |
128 | #define PT_ACR7 0xAC | |
129 | #define PT_ACR8 0xB0 | |
130 | #define PT_ACR9 0xB4 | |
131 | #define PT_ACR10 0xB8 | |
132 | #define PT_ACR11 0xBC | |
133 | #define PT_ACR12 0xC0 | |
134 | #define PT_ACR13 0xC4 | |
135 | #define PT_ACR14 0xC8 | |
136 | #define PT_ACR15 0xCC | |
137 | #define PT_ORIGGPR2 0xD0 | |
138 | #define PT_FPC 0xD8 | |
139 | #define PT_FPR0 0xE0 | |
140 | #define PT_FPR1 0xE8 | |
141 | #define PT_FPR2 0xF0 | |
142 | #define PT_FPR3 0xF8 | |
143 | #define PT_FPR4 0x100 | |
144 | #define PT_FPR5 0x108 | |
145 | #define PT_FPR6 0x110 | |
146 | #define PT_FPR7 0x118 | |
147 | #define PT_FPR8 0x120 | |
148 | #define PT_FPR9 0x128 | |
149 | #define PT_FPR10 0x130 | |
150 | #define PT_FPR11 0x138 | |
151 | #define PT_FPR12 0x140 | |
152 | #define PT_FPR13 0x148 | |
153 | #define PT_FPR14 0x150 | |
154 | #define PT_FPR15 0x158 | |
155 | #define PT_CR_9 0x160 | |
156 | #define PT_CR_10 0x168 | |
157 | #define PT_CR_11 0x170 | |
158 | #define PT_IEEE_IP 0x1A8 | |
159 | #define PT_LASTOFF PT_IEEE_IP | |
160 | #define PT_ENDREGS 0x1B0-1 | |
161 | ||
162 | #define GPR_SIZE 8 | |
163 | #define CR_SIZE 8 | |
164 | ||
62e1dfa3 | 165 | #define STACK_FRAME_OVERHEAD 160 /* size of minimum stack frame */ |
9807f759 DH |
166 | |
167 | #endif /* __s390x__ */ | |
168 | ||
169 | #define NUM_GPRS 16 | |
170 | #define NUM_FPRS 16 | |
171 | #define NUM_CRS 16 | |
172 | #define NUM_ACRS 16 | |
173 | ||
174 | #define NUM_CR_WORDS 3 | |
175 | ||
176 | #define FPR_SIZE 8 | |
177 | #define FPC_SIZE 4 | |
178 | #define FPC_PAD_SIZE 4 /* gcc insists on aligning the fpregs */ | |
179 | #define ACR_SIZE 4 | |
180 | ||
181 | ||
62e1dfa3 | 182 | #define PTRACE_OLDSETOPTIONS 21 |
9807f759 DH |
183 | |
184 | #ifndef __ASSEMBLY__ | |
185 | #include <linux/stddef.h> | |
186 | #include <linux/types.h> | |
187 | ||
62e1dfa3 HB |
188 | typedef union { |
189 | float f; | |
190 | double d; | |
191 | __u64 ui; | |
9807f759 DH |
192 | struct |
193 | { | |
194 | __u32 hi; | |
195 | __u32 lo; | |
196 | } fp; | |
197 | } freg_t; | |
198 | ||
62e1dfa3 HB |
199 | typedef struct { |
200 | __u32 fpc; | |
4725c860 | 201 | __u32 pad; |
62e1dfa3 | 202 | freg_t fprs[NUM_FPRS]; |
9807f759 DH |
203 | } s390_fp_regs; |
204 | ||
62e1dfa3 HB |
205 | #define FPC_EXCEPTION_MASK 0xF8000000 |
206 | #define FPC_FLAGS_MASK 0x00F80000 | |
207 | #define FPC_DXC_MASK 0x0000FF00 | |
208 | #define FPC_RM_MASK 0x00000003 | |
9807f759 DH |
209 | |
210 | /* this typedef defines how a Program Status Word looks like */ | |
62e1dfa3 HB |
211 | typedef struct { |
212 | unsigned long mask; | |
213 | unsigned long addr; | |
9807f759 DH |
214 | } __attribute__ ((aligned(8))) psw_t; |
215 | ||
9807f759 DH |
216 | #ifndef __s390x__ |
217 | ||
218 | #define PSW_MASK_PER 0x40000000UL | |
219 | #define PSW_MASK_DAT 0x04000000UL | |
220 | #define PSW_MASK_IO 0x02000000UL | |
221 | #define PSW_MASK_EXT 0x01000000UL | |
222 | #define PSW_MASK_KEY 0x00F00000UL | |
223 | #define PSW_MASK_BASE 0x00080000UL /* always one */ | |
224 | #define PSW_MASK_MCHECK 0x00040000UL | |
225 | #define PSW_MASK_WAIT 0x00020000UL | |
226 | #define PSW_MASK_PSTATE 0x00010000UL | |
227 | #define PSW_MASK_ASC 0x0000C000UL | |
228 | #define PSW_MASK_CC 0x00003000UL | |
229 | #define PSW_MASK_PM 0x00000F00UL | |
230 | #define PSW_MASK_RI 0x00000000UL | |
231 | #define PSW_MASK_EA 0x00000000UL | |
232 | #define PSW_MASK_BA 0x00000000UL | |
233 | ||
fa968ee2 | 234 | #define PSW_MASK_USER 0x0000FF00UL |
9807f759 DH |
235 | |
236 | #define PSW_ADDR_AMODE 0x80000000UL | |
237 | #define PSW_ADDR_INSN 0x7FFFFFFFUL | |
238 | ||
239 | #define PSW_DEFAULT_KEY (((unsigned long) PAGE_DEFAULT_ACC) << 20) | |
240 | ||
241 | #define PSW_ASC_PRIMARY 0x00000000UL | |
242 | #define PSW_ASC_ACCREG 0x00004000UL | |
243 | #define PSW_ASC_SECONDARY 0x00008000UL | |
244 | #define PSW_ASC_HOME 0x0000C000UL | |
245 | ||
246 | #else /* __s390x__ */ | |
247 | ||
248 | #define PSW_MASK_PER 0x4000000000000000UL | |
249 | #define PSW_MASK_DAT 0x0400000000000000UL | |
250 | #define PSW_MASK_IO 0x0200000000000000UL | |
251 | #define PSW_MASK_EXT 0x0100000000000000UL | |
252 | #define PSW_MASK_BASE 0x0000000000000000UL | |
253 | #define PSW_MASK_KEY 0x00F0000000000000UL | |
254 | #define PSW_MASK_MCHECK 0x0004000000000000UL | |
255 | #define PSW_MASK_WAIT 0x0002000000000000UL | |
256 | #define PSW_MASK_PSTATE 0x0001000000000000UL | |
257 | #define PSW_MASK_ASC 0x0000C00000000000UL | |
258 | #define PSW_MASK_CC 0x0000300000000000UL | |
259 | #define PSW_MASK_PM 0x00000F0000000000UL | |
260 | #define PSW_MASK_RI 0x0000008000000000UL | |
261 | #define PSW_MASK_EA 0x0000000100000000UL | |
262 | #define PSW_MASK_BA 0x0000000080000000UL | |
263 | ||
5ebf250d | 264 | #define PSW_MASK_USER 0x0000FF0180000000UL |
9807f759 DH |
265 | |
266 | #define PSW_ADDR_AMODE 0x0000000000000000UL | |
267 | #define PSW_ADDR_INSN 0xFFFFFFFFFFFFFFFFUL | |
268 | ||
269 | #define PSW_DEFAULT_KEY (((unsigned long) PAGE_DEFAULT_ACC) << 52) | |
270 | ||
271 | #define PSW_ASC_PRIMARY 0x0000000000000000UL | |
272 | #define PSW_ASC_ACCREG 0x0000400000000000UL | |
273 | #define PSW_ASC_SECONDARY 0x0000800000000000UL | |
274 | #define PSW_ASC_HOME 0x0000C00000000000UL | |
275 | ||
276 | #endif /* __s390x__ */ | |
277 | ||
278 | ||
279 | /* | |
280 | * The s390_regs structure is used to define the elf_gregset_t. | |
281 | */ | |
62e1dfa3 | 282 | typedef struct { |
9807f759 DH |
283 | psw_t psw; |
284 | unsigned long gprs[NUM_GPRS]; | |
285 | unsigned int acrs[NUM_ACRS]; | |
286 | unsigned long orig_gpr2; | |
287 | } s390_regs; | |
288 | ||
466698e6 HB |
289 | /* |
290 | * The user_pt_regs structure exports the beginning of | |
291 | * the in-kernel pt_regs structure to user space. | |
292 | */ | |
62e1dfa3 | 293 | typedef struct { |
466698e6 HB |
294 | unsigned long args[1]; |
295 | psw_t psw; | |
296 | unsigned long gprs[NUM_GPRS]; | |
297 | } user_pt_regs; | |
298 | ||
9807f759 DH |
299 | /* |
300 | * Now for the user space program event recording (trace) definitions. | |
301 | * The following structures are used only for the ptrace interface, don't | |
302 | * touch or even look at it if you don't want to modify the user-space | |
303 | * ptrace interface. In particular stay away from it for in-kernel PER. | |
304 | */ | |
62e1dfa3 | 305 | typedef struct { |
9807f759 DH |
306 | unsigned long cr[NUM_CR_WORDS]; |
307 | } per_cr_words; | |
308 | ||
309 | #define PER_EM_MASK 0xE8000000UL | |
310 | ||
62e1dfa3 | 311 | typedef struct { |
9807f759 | 312 | #ifdef __s390x__ |
62e1dfa3 | 313 | unsigned : 32; |
9807f759 | 314 | #endif /* __s390x__ */ |
62e1dfa3 | 315 | unsigned em_branching : 1; |
9807f759 DH |
316 | unsigned em_instruction_fetch : 1; |
317 | /* | |
318 | * Switching on storage alteration automatically fixes | |
319 | * the storage alteration event bit in the users std. | |
320 | */ | |
321 | unsigned em_storage_alteration : 1; | |
322 | unsigned em_gpr_alt_unused : 1; | |
323 | unsigned em_store_real_address : 1; | |
62e1dfa3 | 324 | unsigned : 3; |
9807f759 | 325 | unsigned branch_addr_ctl : 1; |
62e1dfa3 | 326 | unsigned : 1; |
9807f759 | 327 | unsigned storage_alt_space_ctl : 1; |
62e1dfa3 | 328 | unsigned : 21; |
9807f759 DH |
329 | unsigned long starting_addr; |
330 | unsigned long ending_addr; | |
331 | } per_cr_bits; | |
332 | ||
62e1dfa3 | 333 | typedef struct { |
9807f759 DH |
334 | unsigned short perc_atmid; |
335 | unsigned long address; | |
336 | unsigned char access_id; | |
337 | } per_lowcore_words; | |
338 | ||
62e1dfa3 HB |
339 | typedef struct { |
340 | unsigned perc_branching : 1; | |
9807f759 DH |
341 | unsigned perc_instruction_fetch : 1; |
342 | unsigned perc_storage_alteration : 1; | |
62e1dfa3 | 343 | unsigned perc_gpr_alt_unused : 1; |
9807f759 | 344 | unsigned perc_store_real_address : 1; |
62e1dfa3 HB |
345 | unsigned : 3; |
346 | unsigned atmid_psw_bit_31 : 1; | |
347 | unsigned atmid_validity_bit : 1; | |
348 | unsigned atmid_psw_bit_32 : 1; | |
349 | unsigned atmid_psw_bit_5 : 1; | |
350 | unsigned atmid_psw_bit_16 : 1; | |
351 | unsigned atmid_psw_bit_17 : 1; | |
352 | unsigned si : 2; | |
9807f759 | 353 | unsigned long address; |
62e1dfa3 HB |
354 | unsigned : 4; |
355 | unsigned access_id : 4; | |
9807f759 DH |
356 | } per_lowcore_bits; |
357 | ||
62e1dfa3 | 358 | typedef struct { |
9807f759 DH |
359 | union { |
360 | per_cr_words words; | |
361 | per_cr_bits bits; | |
362 | } control_regs; | |
363 | /* | |
25d539c9 MS |
364 | * The single_step and instruction_fetch bits are obsolete, |
365 | * the kernel always sets them to zero. To enable single | |
366 | * stepping use ptrace(PTRACE_SINGLESTEP) instead. | |
9807f759 | 367 | */ |
62e1dfa3 | 368 | unsigned single_step : 1; |
9807f759 | 369 | unsigned instruction_fetch : 1; |
62e1dfa3 | 370 | unsigned : 30; |
9807f759 DH |
371 | /* |
372 | * These addresses are copied into cr10 & cr11 if single | |
373 | * stepping is switched off | |
374 | */ | |
375 | unsigned long starting_addr; | |
376 | unsigned long ending_addr; | |
377 | union { | |
378 | per_lowcore_words words; | |
379 | per_lowcore_bits bits; | |
62e1dfa3 | 380 | } lowcore; |
9807f759 DH |
381 | } per_struct; |
382 | ||
62e1dfa3 | 383 | typedef struct { |
9807f759 DH |
384 | unsigned int len; |
385 | unsigned long kernel_addr; | |
386 | unsigned long process_addr; | |
387 | } ptrace_area; | |
388 | ||
389 | /* | |
390 | * S/390 specific non posix ptrace requests. I chose unusual values so | |
391 | * they are unlikely to clash with future ptrace definitions. | |
392 | */ | |
62e1dfa3 HB |
393 | #define PTRACE_PEEKUSR_AREA 0x5000 |
394 | #define PTRACE_POKEUSR_AREA 0x5001 | |
9807f759 DH |
395 | #define PTRACE_PEEKTEXT_AREA 0x5002 |
396 | #define PTRACE_PEEKDATA_AREA 0x5003 | |
397 | #define PTRACE_POKETEXT_AREA 0x5004 | |
62e1dfa3 | 398 | #define PTRACE_POKEDATA_AREA 0x5005 |
9807f759 DH |
399 | #define PTRACE_GET_LAST_BREAK 0x5006 |
400 | #define PTRACE_PEEK_SYSTEM_CALL 0x5007 | |
401 | #define PTRACE_POKE_SYSTEM_CALL 0x5008 | |
402 | #define PTRACE_ENABLE_TE 0x5009 | |
403 | #define PTRACE_DISABLE_TE 0x5010 | |
64597f9d | 404 | #define PTRACE_TE_ABORT_RAND 0x5011 |
9807f759 | 405 | |
818a330c MS |
406 | /* |
407 | * The numbers chosen here are somewhat arbitrary but absolutely MUST | |
408 | * not overlap with any of the number assigned in <linux/ptrace.h>. | |
409 | */ | |
410 | #define PTRACE_SINGLEBLOCK 12 /* resume execution until next branch */ | |
411 | ||
9807f759 DH |
412 | /* |
413 | * PT_PROT definition is loosely based on hppa bsd definition in | |
414 | * gdb/hppab-nat.c | |
415 | */ | |
62e1dfa3 | 416 | #define PTRACE_PROT 21 |
9807f759 | 417 | |
62e1dfa3 | 418 | typedef enum { |
9807f759 DH |
419 | ptprot_set_access_watchpoint, |
420 | ptprot_set_write_watchpoint, | |
421 | ptprot_disable_watchpoint | |
422 | } ptprot_flags; | |
423 | ||
62e1dfa3 | 424 | typedef struct { |
9807f759 DH |
425 | unsigned long lowaddr; |
426 | unsigned long hiaddr; | |
427 | ptprot_flags prot; | |
62e1dfa3 | 428 | } ptprot_area; |
9807f759 DH |
429 | |
430 | /* Sequence of bytes for breakpoint illegal instruction. */ | |
431 | #define S390_BREAKPOINT {0x0,0x1} | |
432 | #define S390_BREAKPOINT_U16 ((__u16)0x0001) | |
433 | #define S390_SYSCALL_OPCODE ((__u16)0x0a00) | |
434 | #define S390_SYSCALL_SIZE 2 | |
435 | ||
436 | /* | |
437 | * The user_regs_struct defines the way the user registers are | |
438 | * store on the stack for signal handling. | |
439 | */ | |
62e1dfa3 | 440 | struct user_regs_struct { |
9807f759 DH |
441 | psw_t psw; |
442 | unsigned long gprs[NUM_GPRS]; | |
443 | unsigned int acrs[NUM_ACRS]; | |
444 | unsigned long orig_gpr2; | |
445 | s390_fp_regs fp_regs; | |
446 | /* | |
447 | * These per registers are in here so that gdb can modify them | |
448 | * itself as there is no "official" ptrace interface for hardware | |
449 | * watchpoints. This is the way intel does it. | |
450 | */ | |
451 | per_struct per_info; | |
452 | unsigned long ieee_instruction_pointer; /* obsolete, always 0 */ | |
453 | }; | |
454 | ||
455 | #endif /* __ASSEMBLY__ */ | |
456 | ||
457 | #endif /* _UAPI_S390_PTRACE_H */ |