1 /* 2 * S390 version 3 * Copyright IBM Corp. 1999, 2000 4 * Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com) 5 */ 6 7 #ifndef _UAPI_S390_PTRACE_H 8 #define _UAPI_S390_PTRACE_H 9 10 /* 11 * Offsets in the user_regs_struct. They are used for the ptrace 12 * system call and in entry.S 13 */ 14 #ifndef __s390x__ 15 16 #define PT_PSWMASK 0x00 17 #define PT_PSWADDR 0x04 18 #define PT_GPR0 0x08 19 #define PT_GPR1 0x0C 20 #define PT_GPR2 0x10 21 #define PT_GPR3 0x14 22 #define PT_GPR4 0x18 23 #define PT_GPR5 0x1C 24 #define PT_GPR6 0x20 25 #define PT_GPR7 0x24 26 #define PT_GPR8 0x28 27 #define PT_GPR9 0x2C 28 #define PT_GPR10 0x30 29 #define PT_GPR11 0x34 30 #define PT_GPR12 0x38 31 #define PT_GPR13 0x3C 32 #define PT_GPR14 0x40 33 #define PT_GPR15 0x44 34 #define PT_ACR0 0x48 35 #define PT_ACR1 0x4C 36 #define PT_ACR2 0x50 37 #define PT_ACR3 0x54 38 #define PT_ACR4 0x58 39 #define PT_ACR5 0x5C 40 #define PT_ACR6 0x60 41 #define PT_ACR7 0x64 42 #define PT_ACR8 0x68 43 #define PT_ACR9 0x6C 44 #define PT_ACR10 0x70 45 #define PT_ACR11 0x74 46 #define PT_ACR12 0x78 47 #define PT_ACR13 0x7C 48 #define PT_ACR14 0x80 49 #define PT_ACR15 0x84 50 #define PT_ORIGGPR2 0x88 51 #define PT_FPC 0x90 52 /* 53 * A nasty fact of life that the ptrace api 54 * only supports passing of longs. 55 */ 56 #define PT_FPR0_HI 0x98 57 #define PT_FPR0_LO 0x9C 58 #define PT_FPR1_HI 0xA0 59 #define PT_FPR1_LO 0xA4 60 #define PT_FPR2_HI 0xA8 61 #define PT_FPR2_LO 0xAC 62 #define PT_FPR3_HI 0xB0 63 #define PT_FPR3_LO 0xB4 64 #define PT_FPR4_HI 0xB8 65 #define PT_FPR4_LO 0xBC 66 #define PT_FPR5_HI 0xC0 67 #define PT_FPR5_LO 0xC4 68 #define PT_FPR6_HI 0xC8 69 #define PT_FPR6_LO 0xCC 70 #define PT_FPR7_HI 0xD0 71 #define PT_FPR7_LO 0xD4 72 #define PT_FPR8_HI 0xD8 73 #define PT_FPR8_LO 0XDC 74 #define PT_FPR9_HI 0xE0 75 #define PT_FPR9_LO 0xE4 76 #define PT_FPR10_HI 0xE8 77 #define PT_FPR10_LO 0xEC 78 #define PT_FPR11_HI 0xF0 79 #define PT_FPR11_LO 0xF4 80 #define PT_FPR12_HI 0xF8 81 #define PT_FPR12_LO 0xFC 82 #define PT_FPR13_HI 0x100 83 #define PT_FPR13_LO 0x104 84 #define PT_FPR14_HI 0x108 85 #define PT_FPR14_LO 0x10C 86 #define PT_FPR15_HI 0x110 87 #define PT_FPR15_LO 0x114 88 #define PT_CR_9 0x118 89 #define PT_CR_10 0x11C 90 #define PT_CR_11 0x120 91 #define PT_IEEE_IP 0x13C 92 #define PT_LASTOFF PT_IEEE_IP 93 #define PT_ENDREGS 0x140-1 94 95 #define GPR_SIZE 4 96 #define CR_SIZE 4 97 98 #define STACK_FRAME_OVERHEAD 96 /* size of minimum stack frame */ 99 100 #else /* __s390x__ */ 101 102 #define PT_PSWMASK 0x00 103 #define PT_PSWADDR 0x08 104 #define PT_GPR0 0x10 105 #define PT_GPR1 0x18 106 #define PT_GPR2 0x20 107 #define PT_GPR3 0x28 108 #define PT_GPR4 0x30 109 #define PT_GPR5 0x38 110 #define PT_GPR6 0x40 111 #define PT_GPR7 0x48 112 #define PT_GPR8 0x50 113 #define PT_GPR9 0x58 114 #define PT_GPR10 0x60 115 #define PT_GPR11 0x68 116 #define PT_GPR12 0x70 117 #define PT_GPR13 0x78 118 #define PT_GPR14 0x80 119 #define PT_GPR15 0x88 120 #define PT_ACR0 0x90 121 #define PT_ACR1 0x94 122 #define PT_ACR2 0x98 123 #define PT_ACR3 0x9C 124 #define PT_ACR4 0xA0 125 #define PT_ACR5 0xA4 126 #define PT_ACR6 0xA8 127 #define PT_ACR7 0xAC 128 #define PT_ACR8 0xB0 129 #define PT_ACR9 0xB4 130 #define PT_ACR10 0xB8 131 #define PT_ACR11 0xBC 132 #define PT_ACR12 0xC0 133 #define PT_ACR13 0xC4 134 #define PT_ACR14 0xC8 135 #define PT_ACR15 0xCC 136 #define PT_ORIGGPR2 0xD0 137 #define PT_FPC 0xD8 138 #define PT_FPR0 0xE0 139 #define PT_FPR1 0xE8 140 #define PT_FPR2 0xF0 141 #define PT_FPR3 0xF8 142 #define PT_FPR4 0x100 143 #define PT_FPR5 0x108 144 #define PT_FPR6 0x110 145 #define PT_FPR7 0x118 146 #define PT_FPR8 0x120 147 #define PT_FPR9 0x128 148 #define PT_FPR10 0x130 149 #define PT_FPR11 0x138 150 #define PT_FPR12 0x140 151 #define PT_FPR13 0x148 152 #define PT_FPR14 0x150 153 #define PT_FPR15 0x158 154 #define PT_CR_9 0x160 155 #define PT_CR_10 0x168 156 #define PT_CR_11 0x170 157 #define PT_IEEE_IP 0x1A8 158 #define PT_LASTOFF PT_IEEE_IP 159 #define PT_ENDREGS 0x1B0-1 160 161 #define GPR_SIZE 8 162 #define CR_SIZE 8 163 164 #define STACK_FRAME_OVERHEAD 160 /* size of minimum stack frame */ 165 166 #endif /* __s390x__ */ 167 168 #define NUM_GPRS 16 169 #define NUM_FPRS 16 170 #define NUM_CRS 16 171 #define NUM_ACRS 16 172 173 #define NUM_CR_WORDS 3 174 175 #define FPR_SIZE 8 176 #define FPC_SIZE 4 177 #define FPC_PAD_SIZE 4 /* gcc insists on aligning the fpregs */ 178 #define ACR_SIZE 4 179 180 181 #define PTRACE_OLDSETOPTIONS 21 182 183 #ifndef __ASSEMBLY__ 184 #include <linux/stddef.h> 185 #include <linux/types.h> 186 187 typedef union 188 { 189 float f; 190 double d; 191 __u64 ui; 192 struct 193 { 194 __u32 hi; 195 __u32 lo; 196 } fp; 197 } freg_t; 198 199 typedef struct 200 { 201 __u32 fpc; 202 freg_t fprs[NUM_FPRS]; 203 } s390_fp_regs; 204 205 #define FPC_EXCEPTION_MASK 0xF8000000 206 #define FPC_FLAGS_MASK 0x00F80000 207 #define FPC_DXC_MASK 0x0000FF00 208 #define FPC_RM_MASK 0x00000003 209 #define FPC_VALID_MASK 0xF8F8FF03 210 211 /* this typedef defines how a Program Status Word looks like */ 212 typedef struct 213 { 214 unsigned long mask; 215 unsigned long addr; 216 } __attribute__ ((aligned(8))) psw_t; 217 218 typedef struct 219 { 220 __u32 mask; 221 __u32 addr; 222 } __attribute__ ((aligned(8))) psw_compat_t; 223 224 #ifndef __s390x__ 225 226 #define PSW_MASK_PER 0x40000000UL 227 #define PSW_MASK_DAT 0x04000000UL 228 #define PSW_MASK_IO 0x02000000UL 229 #define PSW_MASK_EXT 0x01000000UL 230 #define PSW_MASK_KEY 0x00F00000UL 231 #define PSW_MASK_BASE 0x00080000UL /* always one */ 232 #define PSW_MASK_MCHECK 0x00040000UL 233 #define PSW_MASK_WAIT 0x00020000UL 234 #define PSW_MASK_PSTATE 0x00010000UL 235 #define PSW_MASK_ASC 0x0000C000UL 236 #define PSW_MASK_CC 0x00003000UL 237 #define PSW_MASK_PM 0x00000F00UL 238 #define PSW_MASK_RI 0x00000000UL 239 #define PSW_MASK_EA 0x00000000UL 240 #define PSW_MASK_BA 0x00000000UL 241 242 #define PSW_MASK_USER 0x0000FF00UL 243 244 #define PSW_ADDR_AMODE 0x80000000UL 245 #define PSW_ADDR_INSN 0x7FFFFFFFUL 246 247 #define PSW_DEFAULT_KEY (((unsigned long) PAGE_DEFAULT_ACC) << 20) 248 249 #define PSW_ASC_PRIMARY 0x00000000UL 250 #define PSW_ASC_ACCREG 0x00004000UL 251 #define PSW_ASC_SECONDARY 0x00008000UL 252 #define PSW_ASC_HOME 0x0000C000UL 253 254 #else /* __s390x__ */ 255 256 #define PSW_MASK_PER 0x4000000000000000UL 257 #define PSW_MASK_DAT 0x0400000000000000UL 258 #define PSW_MASK_IO 0x0200000000000000UL 259 #define PSW_MASK_EXT 0x0100000000000000UL 260 #define PSW_MASK_BASE 0x0000000000000000UL 261 #define PSW_MASK_KEY 0x00F0000000000000UL 262 #define PSW_MASK_MCHECK 0x0004000000000000UL 263 #define PSW_MASK_WAIT 0x0002000000000000UL 264 #define PSW_MASK_PSTATE 0x0001000000000000UL 265 #define PSW_MASK_ASC 0x0000C00000000000UL 266 #define PSW_MASK_CC 0x0000300000000000UL 267 #define PSW_MASK_PM 0x00000F0000000000UL 268 #define PSW_MASK_RI 0x0000008000000000UL 269 #define PSW_MASK_EA 0x0000000100000000UL 270 #define PSW_MASK_BA 0x0000000080000000UL 271 272 #define PSW_MASK_USER 0x0000FF8180000000UL 273 274 #define PSW_ADDR_AMODE 0x0000000000000000UL 275 #define PSW_ADDR_INSN 0xFFFFFFFFFFFFFFFFUL 276 277 #define PSW_DEFAULT_KEY (((unsigned long) PAGE_DEFAULT_ACC) << 52) 278 279 #define PSW_ASC_PRIMARY 0x0000000000000000UL 280 #define PSW_ASC_ACCREG 0x0000400000000000UL 281 #define PSW_ASC_SECONDARY 0x0000800000000000UL 282 #define PSW_ASC_HOME 0x0000C00000000000UL 283 284 #endif /* __s390x__ */ 285 286 287 /* 288 * The s390_regs structure is used to define the elf_gregset_t. 289 */ 290 typedef struct 291 { 292 psw_t psw; 293 unsigned long gprs[NUM_GPRS]; 294 unsigned int acrs[NUM_ACRS]; 295 unsigned long orig_gpr2; 296 } s390_regs; 297 298 typedef struct 299 { 300 psw_compat_t psw; 301 __u32 gprs[NUM_GPRS]; 302 __u32 acrs[NUM_ACRS]; 303 __u32 orig_gpr2; 304 } s390_compat_regs; 305 306 typedef struct 307 { 308 __u32 gprs_high[NUM_GPRS]; 309 } s390_compat_regs_high; 310 311 312 /* 313 * Now for the user space program event recording (trace) definitions. 314 * The following structures are used only for the ptrace interface, don't 315 * touch or even look at it if you don't want to modify the user-space 316 * ptrace interface. In particular stay away from it for in-kernel PER. 317 */ 318 typedef struct 319 { 320 unsigned long cr[NUM_CR_WORDS]; 321 } per_cr_words; 322 323 #define PER_EM_MASK 0xE8000000UL 324 325 typedef struct 326 { 327 #ifdef __s390x__ 328 unsigned : 32; 329 #endif /* __s390x__ */ 330 unsigned em_branching : 1; 331 unsigned em_instruction_fetch : 1; 332 /* 333 * Switching on storage alteration automatically fixes 334 * the storage alteration event bit in the users std. 335 */ 336 unsigned em_storage_alteration : 1; 337 unsigned em_gpr_alt_unused : 1; 338 unsigned em_store_real_address : 1; 339 unsigned : 3; 340 unsigned branch_addr_ctl : 1; 341 unsigned : 1; 342 unsigned storage_alt_space_ctl : 1; 343 unsigned : 21; 344 unsigned long starting_addr; 345 unsigned long ending_addr; 346 } per_cr_bits; 347 348 typedef struct 349 { 350 unsigned short perc_atmid; 351 unsigned long address; 352 unsigned char access_id; 353 } per_lowcore_words; 354 355 typedef struct 356 { 357 unsigned perc_branching : 1; 358 unsigned perc_instruction_fetch : 1; 359 unsigned perc_storage_alteration : 1; 360 unsigned perc_gpr_alt_unused : 1; 361 unsigned perc_store_real_address : 1; 362 unsigned : 3; 363 unsigned atmid_psw_bit_31 : 1; 364 unsigned atmid_validity_bit : 1; 365 unsigned atmid_psw_bit_32 : 1; 366 unsigned atmid_psw_bit_5 : 1; 367 unsigned atmid_psw_bit_16 : 1; 368 unsigned atmid_psw_bit_17 : 1; 369 unsigned si : 2; 370 unsigned long address; 371 unsigned : 4; 372 unsigned access_id : 4; 373 } per_lowcore_bits; 374 375 typedef struct 376 { 377 union { 378 per_cr_words words; 379 per_cr_bits bits; 380 } control_regs; 381 /* 382 * Use these flags instead of setting em_instruction_fetch 383 * directly they are used so that single stepping can be 384 * switched on & off while not affecting other tracing 385 */ 386 unsigned single_step : 1; 387 unsigned instruction_fetch : 1; 388 unsigned : 30; 389 /* 390 * These addresses are copied into cr10 & cr11 if single 391 * stepping is switched off 392 */ 393 unsigned long starting_addr; 394 unsigned long ending_addr; 395 union { 396 per_lowcore_words words; 397 per_lowcore_bits bits; 398 } lowcore; 399 } per_struct; 400 401 typedef struct 402 { 403 unsigned int len; 404 unsigned long kernel_addr; 405 unsigned long process_addr; 406 } ptrace_area; 407 408 /* 409 * S/390 specific non posix ptrace requests. I chose unusual values so 410 * they are unlikely to clash with future ptrace definitions. 411 */ 412 #define PTRACE_PEEKUSR_AREA 0x5000 413 #define PTRACE_POKEUSR_AREA 0x5001 414 #define PTRACE_PEEKTEXT_AREA 0x5002 415 #define PTRACE_PEEKDATA_AREA 0x5003 416 #define PTRACE_POKETEXT_AREA 0x5004 417 #define PTRACE_POKEDATA_AREA 0x5005 418 #define PTRACE_GET_LAST_BREAK 0x5006 419 #define PTRACE_PEEK_SYSTEM_CALL 0x5007 420 #define PTRACE_POKE_SYSTEM_CALL 0x5008 421 #define PTRACE_ENABLE_TE 0x5009 422 #define PTRACE_DISABLE_TE 0x5010 423 424 /* 425 * PT_PROT definition is loosely based on hppa bsd definition in 426 * gdb/hppab-nat.c 427 */ 428 #define PTRACE_PROT 21 429 430 typedef enum 431 { 432 ptprot_set_access_watchpoint, 433 ptprot_set_write_watchpoint, 434 ptprot_disable_watchpoint 435 } ptprot_flags; 436 437 typedef struct 438 { 439 unsigned long lowaddr; 440 unsigned long hiaddr; 441 ptprot_flags prot; 442 } ptprot_area; 443 444 /* Sequence of bytes for breakpoint illegal instruction. */ 445 #define S390_BREAKPOINT {0x0,0x1} 446 #define S390_BREAKPOINT_U16 ((__u16)0x0001) 447 #define S390_SYSCALL_OPCODE ((__u16)0x0a00) 448 #define S390_SYSCALL_SIZE 2 449 450 /* 451 * The user_regs_struct defines the way the user registers are 452 * store on the stack for signal handling. 453 */ 454 struct user_regs_struct 455 { 456 psw_t psw; 457 unsigned long gprs[NUM_GPRS]; 458 unsigned int acrs[NUM_ACRS]; 459 unsigned long orig_gpr2; 460 s390_fp_regs fp_regs; 461 /* 462 * These per registers are in here so that gdb can modify them 463 * itself as there is no "official" ptrace interface for hardware 464 * watchpoints. This is the way intel does it. 465 */ 466 per_struct per_info; 467 unsigned long ieee_instruction_pointer; /* obsolete, always 0 */ 468 }; 469 470 #endif /* __ASSEMBLY__ */ 471 472 #endif /* _UAPI_S390_PTRACE_H */ 473