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 __u32 pad; 203 freg_t fprs[NUM_FPRS]; 204 } s390_fp_regs; 205 206 #define FPC_EXCEPTION_MASK 0xF8000000 207 #define FPC_FLAGS_MASK 0x00F80000 208 #define FPC_DXC_MASK 0x0000FF00 209 #define FPC_RM_MASK 0x00000003 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 #ifndef __s390x__ 219 220 #define PSW_MASK_PER 0x40000000UL 221 #define PSW_MASK_DAT 0x04000000UL 222 #define PSW_MASK_IO 0x02000000UL 223 #define PSW_MASK_EXT 0x01000000UL 224 #define PSW_MASK_KEY 0x00F00000UL 225 #define PSW_MASK_BASE 0x00080000UL /* always one */ 226 #define PSW_MASK_MCHECK 0x00040000UL 227 #define PSW_MASK_WAIT 0x00020000UL 228 #define PSW_MASK_PSTATE 0x00010000UL 229 #define PSW_MASK_ASC 0x0000C000UL 230 #define PSW_MASK_CC 0x00003000UL 231 #define PSW_MASK_PM 0x00000F00UL 232 #define PSW_MASK_RI 0x00000000UL 233 #define PSW_MASK_EA 0x00000000UL 234 #define PSW_MASK_BA 0x00000000UL 235 236 #define PSW_MASK_USER 0x0000FF00UL 237 238 #define PSW_ADDR_AMODE 0x80000000UL 239 #define PSW_ADDR_INSN 0x7FFFFFFFUL 240 241 #define PSW_DEFAULT_KEY (((unsigned long) PAGE_DEFAULT_ACC) << 20) 242 243 #define PSW_ASC_PRIMARY 0x00000000UL 244 #define PSW_ASC_ACCREG 0x00004000UL 245 #define PSW_ASC_SECONDARY 0x00008000UL 246 #define PSW_ASC_HOME 0x0000C000UL 247 248 #else /* __s390x__ */ 249 250 #define PSW_MASK_PER 0x4000000000000000UL 251 #define PSW_MASK_DAT 0x0400000000000000UL 252 #define PSW_MASK_IO 0x0200000000000000UL 253 #define PSW_MASK_EXT 0x0100000000000000UL 254 #define PSW_MASK_BASE 0x0000000000000000UL 255 #define PSW_MASK_KEY 0x00F0000000000000UL 256 #define PSW_MASK_MCHECK 0x0004000000000000UL 257 #define PSW_MASK_WAIT 0x0002000000000000UL 258 #define PSW_MASK_PSTATE 0x0001000000000000UL 259 #define PSW_MASK_ASC 0x0000C00000000000UL 260 #define PSW_MASK_CC 0x0000300000000000UL 261 #define PSW_MASK_PM 0x00000F0000000000UL 262 #define PSW_MASK_RI 0x0000008000000000UL 263 #define PSW_MASK_EA 0x0000000100000000UL 264 #define PSW_MASK_BA 0x0000000080000000UL 265 266 #define PSW_MASK_USER 0x0000FF0180000000UL 267 268 #define PSW_ADDR_AMODE 0x0000000000000000UL 269 #define PSW_ADDR_INSN 0xFFFFFFFFFFFFFFFFUL 270 271 #define PSW_DEFAULT_KEY (((unsigned long) PAGE_DEFAULT_ACC) << 52) 272 273 #define PSW_ASC_PRIMARY 0x0000000000000000UL 274 #define PSW_ASC_ACCREG 0x0000400000000000UL 275 #define PSW_ASC_SECONDARY 0x0000800000000000UL 276 #define PSW_ASC_HOME 0x0000C00000000000UL 277 278 #endif /* __s390x__ */ 279 280 281 /* 282 * The s390_regs structure is used to define the elf_gregset_t. 283 */ 284 typedef struct 285 { 286 psw_t psw; 287 unsigned long gprs[NUM_GPRS]; 288 unsigned int acrs[NUM_ACRS]; 289 unsigned long orig_gpr2; 290 } s390_regs; 291 292 /* 293 * Now for the user space program event recording (trace) definitions. 294 * The following structures are used only for the ptrace interface, don't 295 * touch or even look at it if you don't want to modify the user-space 296 * ptrace interface. In particular stay away from it for in-kernel PER. 297 */ 298 typedef struct 299 { 300 unsigned long cr[NUM_CR_WORDS]; 301 } per_cr_words; 302 303 #define PER_EM_MASK 0xE8000000UL 304 305 typedef struct 306 { 307 #ifdef __s390x__ 308 unsigned : 32; 309 #endif /* __s390x__ */ 310 unsigned em_branching : 1; 311 unsigned em_instruction_fetch : 1; 312 /* 313 * Switching on storage alteration automatically fixes 314 * the storage alteration event bit in the users std. 315 */ 316 unsigned em_storage_alteration : 1; 317 unsigned em_gpr_alt_unused : 1; 318 unsigned em_store_real_address : 1; 319 unsigned : 3; 320 unsigned branch_addr_ctl : 1; 321 unsigned : 1; 322 unsigned storage_alt_space_ctl : 1; 323 unsigned : 21; 324 unsigned long starting_addr; 325 unsigned long ending_addr; 326 } per_cr_bits; 327 328 typedef struct 329 { 330 unsigned short perc_atmid; 331 unsigned long address; 332 unsigned char access_id; 333 } per_lowcore_words; 334 335 typedef struct 336 { 337 unsigned perc_branching : 1; 338 unsigned perc_instruction_fetch : 1; 339 unsigned perc_storage_alteration : 1; 340 unsigned perc_gpr_alt_unused : 1; 341 unsigned perc_store_real_address : 1; 342 unsigned : 3; 343 unsigned atmid_psw_bit_31 : 1; 344 unsigned atmid_validity_bit : 1; 345 unsigned atmid_psw_bit_32 : 1; 346 unsigned atmid_psw_bit_5 : 1; 347 unsigned atmid_psw_bit_16 : 1; 348 unsigned atmid_psw_bit_17 : 1; 349 unsigned si : 2; 350 unsigned long address; 351 unsigned : 4; 352 unsigned access_id : 4; 353 } per_lowcore_bits; 354 355 typedef struct 356 { 357 union { 358 per_cr_words words; 359 per_cr_bits bits; 360 } control_regs; 361 /* 362 * Use these flags instead of setting em_instruction_fetch 363 * directly they are used so that single stepping can be 364 * switched on & off while not affecting other tracing 365 */ 366 unsigned single_step : 1; 367 unsigned instruction_fetch : 1; 368 unsigned : 30; 369 /* 370 * These addresses are copied into cr10 & cr11 if single 371 * stepping is switched off 372 */ 373 unsigned long starting_addr; 374 unsigned long ending_addr; 375 union { 376 per_lowcore_words words; 377 per_lowcore_bits bits; 378 } lowcore; 379 } per_struct; 380 381 typedef struct 382 { 383 unsigned int len; 384 unsigned long kernel_addr; 385 unsigned long process_addr; 386 } ptrace_area; 387 388 /* 389 * S/390 specific non posix ptrace requests. I chose unusual values so 390 * they are unlikely to clash with future ptrace definitions. 391 */ 392 #define PTRACE_PEEKUSR_AREA 0x5000 393 #define PTRACE_POKEUSR_AREA 0x5001 394 #define PTRACE_PEEKTEXT_AREA 0x5002 395 #define PTRACE_PEEKDATA_AREA 0x5003 396 #define PTRACE_POKETEXT_AREA 0x5004 397 #define PTRACE_POKEDATA_AREA 0x5005 398 #define PTRACE_GET_LAST_BREAK 0x5006 399 #define PTRACE_PEEK_SYSTEM_CALL 0x5007 400 #define PTRACE_POKE_SYSTEM_CALL 0x5008 401 #define PTRACE_ENABLE_TE 0x5009 402 #define PTRACE_DISABLE_TE 0x5010 403 #define PTRACE_TE_ABORT_RAND 0x5011 404 405 /* 406 * The numbers chosen here are somewhat arbitrary but absolutely MUST 407 * not overlap with any of the number assigned in <linux/ptrace.h>. 408 */ 409 #define PTRACE_SINGLEBLOCK 12 /* resume execution until next branch */ 410 411 /* 412 * PT_PROT definition is loosely based on hppa bsd definition in 413 * gdb/hppab-nat.c 414 */ 415 #define PTRACE_PROT 21 416 417 typedef enum 418 { 419 ptprot_set_access_watchpoint, 420 ptprot_set_write_watchpoint, 421 ptprot_disable_watchpoint 422 } ptprot_flags; 423 424 typedef struct 425 { 426 unsigned long lowaddr; 427 unsigned long hiaddr; 428 ptprot_flags prot; 429 } ptprot_area; 430 431 /* Sequence of bytes for breakpoint illegal instruction. */ 432 #define S390_BREAKPOINT {0x0,0x1} 433 #define S390_BREAKPOINT_U16 ((__u16)0x0001) 434 #define S390_SYSCALL_OPCODE ((__u16)0x0a00) 435 #define S390_SYSCALL_SIZE 2 436 437 /* 438 * The user_regs_struct defines the way the user registers are 439 * store on the stack for signal handling. 440 */ 441 struct user_regs_struct 442 { 443 psw_t psw; 444 unsigned long gprs[NUM_GPRS]; 445 unsigned int acrs[NUM_ACRS]; 446 unsigned long orig_gpr2; 447 s390_fp_regs fp_regs; 448 /* 449 * These per registers are in here so that gdb can modify them 450 * itself as there is no "official" ptrace interface for hardware 451 * watchpoints. This is the way intel does it. 452 */ 453 per_struct per_info; 454 unsigned long ieee_instruction_pointer; /* obsolete, always 0 */ 455 }; 456 457 #endif /* __ASSEMBLY__ */ 458 459 #endif /* _UAPI_S390_PTRACE_H */ 460