LXR linux/arch/riscv/kernel/asm-offsets.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * Copyright (C) 2012 Regents of the University of California
   4 * Copyright (C) 2017 SiFive
   5 */
   6
   7#define GENERATING_ASM_OFFSETS
   8
   9#include <linux/kbuild.h>
  10#include <linux/sched.h>
  11#include <asm/thread_info.h>
  12#include <asm/ptrace.h>
  13
  14void asm_offsets(void);
  15
  16void asm_offsets(void)
  17{
  18        OFFSET(TASK_THREAD_RA, task_struct, thread.ra);
  19        OFFSET(TASK_THREAD_SP, task_struct, thread.sp);
  20        OFFSET(TASK_THREAD_S0, task_struct, thread.s[0]);
  21        OFFSET(TASK_THREAD_S1, task_struct, thread.s[1]);
  22        OFFSET(TASK_THREAD_S2, task_struct, thread.s[2]);
  23        OFFSET(TASK_THREAD_S3, task_struct, thread.s[3]);
  24        OFFSET(TASK_THREAD_S4, task_struct, thread.s[4]);
  25        OFFSET(TASK_THREAD_S5, task_struct, thread.s[5]);
  26        OFFSET(TASK_THREAD_S6, task_struct, thread.s[6]);
  27        OFFSET(TASK_THREAD_S7, task_struct, thread.s[7]);
  28        OFFSET(TASK_THREAD_S8, task_struct, thread.s[8]);
  29        OFFSET(TASK_THREAD_S9, task_struct, thread.s[9]);
  30        OFFSET(TASK_THREAD_S10, task_struct, thread.s[10]);
  31        OFFSET(TASK_THREAD_S11, task_struct, thread.s[11]);
  32        OFFSET(TASK_TI_FLAGS, task_struct, thread_info.flags);
  33        OFFSET(TASK_TI_PREEMPT_COUNT, task_struct, thread_info.preempt_count);
  34        OFFSET(TASK_TI_KERNEL_SP, task_struct, thread_info.kernel_sp);
  35        OFFSET(TASK_TI_USER_SP, task_struct, thread_info.user_sp);
  36        OFFSET(TASK_TI_CPU, task_struct, thread_info.cpu);
  37
  38        OFFSET(TASK_THREAD_F0,  task_struct, thread.fstate.f[0]);
  39        OFFSET(TASK_THREAD_F1,  task_struct, thread.fstate.f[1]);
  40        OFFSET(TASK_THREAD_F2,  task_struct, thread.fstate.f[2]);
  41        OFFSET(TASK_THREAD_F3,  task_struct, thread.fstate.f[3]);
  42        OFFSET(TASK_THREAD_F4,  task_struct, thread.fstate.f[4]);
  43        OFFSET(TASK_THREAD_F5,  task_struct, thread.fstate.f[5]);
  44        OFFSET(TASK_THREAD_F6,  task_struct, thread.fstate.f[6]);
  45        OFFSET(TASK_THREAD_F7,  task_struct, thread.fstate.f[7]);
  46        OFFSET(TASK_THREAD_F8,  task_struct, thread.fstate.f[8]);
  47        OFFSET(TASK_THREAD_F9,  task_struct, thread.fstate.f[9]);
  48        OFFSET(TASK_THREAD_F10, task_struct, thread.fstate.f[10]);
  49        OFFSET(TASK_THREAD_F11, task_struct, thread.fstate.f[11]);
  50        OFFSET(TASK_THREAD_F12, task_struct, thread.fstate.f[12]);
  51        OFFSET(TASK_THREAD_F13, task_struct, thread.fstate.f[13]);
  52        OFFSET(TASK_THREAD_F14, task_struct, thread.fstate.f[14]);
  53        OFFSET(TASK_THREAD_F15, task_struct, thread.fstate.f[15]);
  54        OFFSET(TASK_THREAD_F16, task_struct, thread.fstate.f[16]);
  55        OFFSET(TASK_THREAD_F17, task_struct, thread.fstate.f[17]);
  56        OFFSET(TASK_THREAD_F18, task_struct, thread.fstate.f[18]);
  57        OFFSET(TASK_THREAD_F19, task_struct, thread.fstate.f[19]);
  58        OFFSET(TASK_THREAD_F20, task_struct, thread.fstate.f[20]);
  59        OFFSET(TASK_THREAD_F21, task_struct, thread.fstate.f[21]);
  60        OFFSET(TASK_THREAD_F22, task_struct, thread.fstate.f[22]);
  61        OFFSET(TASK_THREAD_F23, task_struct, thread.fstate.f[23]);
  62        OFFSET(TASK_THREAD_F24, task_struct, thread.fstate.f[24]);
  63        OFFSET(TASK_THREAD_F25, task_struct, thread.fstate.f[25]);
  64        OFFSET(TASK_THREAD_F26, task_struct, thread.fstate.f[26]);
  65        OFFSET(TASK_THREAD_F27, task_struct, thread.fstate.f[27]);
  66        OFFSET(TASK_THREAD_F28, task_struct, thread.fstate.f[28]);
  67        OFFSET(TASK_THREAD_F29, task_struct, thread.fstate.f[29]);
  68        OFFSET(TASK_THREAD_F30, task_struct, thread.fstate.f[30]);
  69        OFFSET(TASK_THREAD_F31, task_struct, thread.fstate.f[31]);
  70        OFFSET(TASK_THREAD_FCSR, task_struct, thread.fstate.fcsr);
  71#ifdef CONFIG_STACKPROTECTOR
  72        OFFSET(TSK_STACK_CANARY, task_struct, stack_canary);
  73#endif
  74
  75        DEFINE(PT_SIZE, sizeof(struct pt_regs));
  76        OFFSET(PT_EPC, pt_regs, epc);
  77        OFFSET(PT_RA, pt_regs, ra);
  78        OFFSET(PT_FP, pt_regs, s0);
  79        OFFSET(PT_S0, pt_regs, s0);
  80        OFFSET(PT_S1, pt_regs, s1);
  81        OFFSET(PT_S2, pt_regs, s2);
  82        OFFSET(PT_S3, pt_regs, s3);
  83        OFFSET(PT_S4, pt_regs, s4);
  84        OFFSET(PT_S5, pt_regs, s5);
  85        OFFSET(PT_S6, pt_regs, s6);
  86        OFFSET(PT_S7, pt_regs, s7);
  87        OFFSET(PT_S8, pt_regs, s8);
  88        OFFSET(PT_S9, pt_regs, s9);
  89        OFFSET(PT_S10, pt_regs, s10);
  90        OFFSET(PT_S11, pt_regs, s11);
  91        OFFSET(PT_SP, pt_regs, sp);
  92        OFFSET(PT_TP, pt_regs, tp);
  93        OFFSET(PT_A0, pt_regs, a0);
  94        OFFSET(PT_A1, pt_regs, a1);
  95        OFFSET(PT_A2, pt_regs, a2);
  96        OFFSET(PT_A3, pt_regs, a3);
  97        OFFSET(PT_A4, pt_regs, a4);
  98        OFFSET(PT_A5, pt_regs, a5);
  99        OFFSET(PT_A6, pt_regs, a6);
 100        OFFSET(PT_A7, pt_regs, a7);
 101        OFFSET(PT_T0, pt_regs, t0);
 102        OFFSET(PT_T1, pt_regs, t1);
 103        OFFSET(PT_T2, pt_regs, t2);
 104        OFFSET(PT_T3, pt_regs, t3);
 105        OFFSET(PT_T4, pt_regs, t4);
 106        OFFSET(PT_T5, pt_regs, t5);
 107        OFFSET(PT_T6, pt_regs, t6);
 108        OFFSET(PT_GP, pt_regs, gp);
 109        OFFSET(PT_ORIG_A0, pt_regs, orig_a0);
 110        OFFSET(PT_STATUS, pt_regs, status);
 111        OFFSET(PT_BADADDR, pt_regs, badaddr);
 112        OFFSET(PT_CAUSE, pt_regs, cause);
 113
 114        /*
 115         * THREAD_{F,X}* might be larger than a S-type offset can handle, but
 116         * these are used in performance-sensitive assembly so we can't resort
 117         * to loading the long immediate every time.
 118         */
 119        DEFINE(TASK_THREAD_RA_RA,
 120                  offsetof(struct task_struct, thread.ra)
 121                - offsetof(struct task_struct, thread.ra)
 122        );
 123        DEFINE(TASK_THREAD_SP_RA,
 124                  offsetof(struct task_struct, thread.sp)
 125                - offsetof(struct task_struct, thread.ra)
 126        );
 127        DEFINE(TASK_THREAD_S0_RA,
 128                  offsetof(struct task_struct, thread.s[0])
 129                - offsetof(struct task_struct, thread.ra)
 130        );
 131        DEFINE(TASK_THREAD_S1_RA,
 132                  offsetof(struct task_struct, thread.s[1])
 133                - offsetof(struct task_struct, thread.ra)
 134        );
 135        DEFINE(TASK_THREAD_S2_RA,
 136                  offsetof(struct task_struct, thread.s[2])
 137                - offsetof(struct task_struct, thread.ra)
 138        );
 139        DEFINE(TASK_THREAD_S3_RA,
 140                  offsetof(struct task_struct, thread.s[3])
 141                - offsetof(struct task_struct, thread.ra)
 142        );
 143        DEFINE(TASK_THREAD_S4_RA,
 144                  offsetof(struct task_struct, thread.s[4])
 145                - offsetof(struct task_struct, thread.ra)
 146        );
 147        DEFINE(TASK_THREAD_S5_RA,
 148                  offsetof(struct task_struct, thread.s[5])
 149                - offsetof(struct task_struct, thread.ra)
 150        );
 151        DEFINE(TASK_THREAD_S6_RA,
 152                  offsetof(struct task_struct, thread.s[6])
 153                - offsetof(struct task_struct, thread.ra)
 154        );
 155        DEFINE(TASK_THREAD_S7_RA,
 156                  offsetof(struct task_struct, thread.s[7])
 157                - offsetof(struct task_struct, thread.ra)
 158        );
 159        DEFINE(TASK_THREAD_S8_RA,
 160                  offsetof(struct task_struct, thread.s[8])
 161                - offsetof(struct task_struct, thread.ra)
 162        );
 163        DEFINE(TASK_THREAD_S9_RA,
 164                  offsetof(struct task_struct, thread.s[9])
 165                - offsetof(struct task_struct, thread.ra)
 166        );
 167        DEFINE(TASK_THREAD_S10_RA,
 168                  offsetof(struct task_struct, thread.s[10])
 169                - offsetof(struct task_struct, thread.ra)
 170        );
 171        DEFINE(TASK_THREAD_S11_RA,
 172                  offsetof(struct task_struct, thread.s[11])
 173                - offsetof(struct task_struct, thread.ra)
 174        );
 175
 176        DEFINE(TASK_THREAD_F0_F0,
 177                  offsetof(struct task_struct, thread.fstate.f[0])
 178                - offsetof(struct task_struct, thread.fstate.f[0])
 179        );
 180        DEFINE(TASK_THREAD_F1_F0,
 181                  offsetof(struct task_struct, thread.fstate.f[1])
 182                - offsetof(struct task_struct, thread.fstate.f[0])
 183        );
 184        DEFINE(TASK_THREAD_F2_F0,
 185                  offsetof(struct task_struct, thread.fstate.f[2])
 186                - offsetof(struct task_struct, thread.fstate.f[0])
 187        );
 188        DEFINE(TASK_THREAD_F3_F0,
 189                  offsetof(struct task_struct, thread.fstate.f[3])
 190                - offsetof(struct task_struct, thread.fstate.f[0])
 191        );
 192        DEFINE(TASK_THREAD_F4_F0,
 193                  offsetof(struct task_struct, thread.fstate.f[4])
 194                - offsetof(struct task_struct, thread.fstate.f[0])
 195        );
 196        DEFINE(TASK_THREAD_F5_F0,
 197                  offsetof(struct task_struct, thread.fstate.f[5])
 198                - offsetof(struct task_struct, thread.fstate.f[0])
 199        );
 200        DEFINE(TASK_THREAD_F6_F0,
 201                  offsetof(struct task_struct, thread.fstate.f[6])
 202                - offsetof(struct task_struct, thread.fstate.f[0])
 203        );
 204        DEFINE(TASK_THREAD_F7_F0,
 205                  offsetof(struct task_struct, thread.fstate.f[7])
 206                - offsetof(struct task_struct, thread.fstate.f[0])
 207        );
 208        DEFINE(TASK_THREAD_F8_F0,
 209                  offsetof(struct task_struct, thread.fstate.f[8])
 210                - offsetof(struct task_struct, thread.fstate.f[0])
 211        );
 212        DEFINE(TASK_THREAD_F9_F0,
 213                  offsetof(struct task_struct, thread.fstate.f[9])
 214                - offsetof(struct task_struct, thread.fstate.f[0])
 215        );
 216        DEFINE(TASK_THREAD_F10_F0,
 217                  offsetof(struct task_struct, thread.fstate.f[10])
 218                - offsetof(struct task_struct, thread.fstate.f[0])
 219        );
 220        DEFINE(TASK_THREAD_F11_F0,
 221                  offsetof(struct task_struct, thread.fstate.f[11])
 222                - offsetof(struct task_struct, thread.fstate.f[0])
 223        );
 224        DEFINE(TASK_THREAD_F12_F0,
 225                  offsetof(struct task_struct, thread.fstate.f[12])
 226                - offsetof(struct task_struct, thread.fstate.f[0])
 227        );
 228        DEFINE(TASK_THREAD_F13_F0,
 229                  offsetof(struct task_struct, thread.fstate.f[13])
 230                - offsetof(struct task_struct, thread.fstate.f[0])
 231        );
 232        DEFINE(TASK_THREAD_F14_F0,
 233                  offsetof(struct task_struct, thread.fstate.f[14])
 234                - offsetof(struct task_struct, thread.fstate.f[0])
 235        );
 236        DEFINE(TASK_THREAD_F15_F0,
 237                  offsetof(struct task_struct, thread.fstate.f[15])
 238                - offsetof(struct task_struct, thread.fstate.f[0])
 239        );
 240        DEFINE(TASK_THREAD_F16_F0,
 241                  offsetof(struct task_struct, thread.fstate.f[16])
 242                - offsetof(struct task_struct, thread.fstate.f[0])
 243        );
 244        DEFINE(TASK_THREAD_F17_F0,
 245                  offsetof(struct task_struct, thread.fstate.f[17])
 246                - offsetof(struct task_struct, thread.fstate.f[0])
 247        );
 248        DEFINE(TASK_THREAD_F18_F0,
 249                  offsetof(struct task_struct, thread.fstate.f[18])
 250                - offsetof(struct task_struct, thread.fstate.f[0])
 251        );
 252        DEFINE(TASK_THREAD_F19_F0,
 253                  offsetof(struct task_struct, thread.fstate.f[19])
 254                - offsetof(struct task_struct, thread.fstate.f[0])
 255        );
 256        DEFINE(TASK_THREAD_F20_F0,
 257                  offsetof(struct task_struct, thread.fstate.f[20])
 258                - offsetof(struct task_struct, thread.fstate.f[0])
 259        );
 260        DEFINE(TASK_THREAD_F21_F0,
 261                  offsetof(struct task_struct, thread.fstate.f[21])
 262                - offsetof(struct task_struct, thread.fstate.f[0])
 263        );
 264        DEFINE(TASK_THREAD_F22_F0,
 265                  offsetof(struct task_struct, thread.fstate.f[22])
 266                - offsetof(struct task_struct, thread.fstate.f[0])
 267        );
 268        DEFINE(TASK_THREAD_F23_F0,
 269                  offsetof(struct task_struct, thread.fstate.f[23])
 270                - offsetof(struct task_struct, thread.fstate.f[0])
 271        );
 272        DEFINE(TASK_THREAD_F24_F0,
 273                  offsetof(struct task_struct, thread.fstate.f[24])
 274                - offsetof(struct task_struct, thread.fstate.f[0])
 275        );
 276        DEFINE(TASK_THREAD_F25_F0,
 277                  offsetof(struct task_struct, thread.fstate.f[25])
 278                - offsetof(struct task_struct, thread.fstate.f[0])
 279        );
 280        DEFINE(TASK_THREAD_F26_F0,
 281                  offsetof(struct task_struct, thread.fstate.f[26])
 282                - offsetof(struct task_struct, thread.fstate.f[0])
 283        );
 284        DEFINE(TASK_THREAD_F27_F0,
 285                  offsetof(struct task_struct, thread.fstate.f[27])
 286                - offsetof(struct task_struct, thread.fstate.f[0])
 287        );
 288        DEFINE(TASK_THREAD_F28_F0,
 289                  offsetof(struct task_struct, thread.fstate.f[28])
 290                - offsetof(struct task_struct, thread.fstate.f[0])
 291        );
 292        DEFINE(TASK_THREAD_F29_F0,
 293                  offsetof(struct task_struct, thread.fstate.f[29])
 294                - offsetof(struct task_struct, thread.fstate.f[0])
 295        );
 296        DEFINE(TASK_THREAD_F30_F0,
 297                  offsetof(struct task_struct, thread.fstate.f[30])
 298                - offsetof(struct task_struct, thread.fstate.f[0])
 299        );
 300        DEFINE(TASK_THREAD_F31_F0,
 301                  offsetof(struct task_struct, thread.fstate.f[31])
 302                - offsetof(struct task_struct, thread.fstate.f[0])
 303        );
 304        DEFINE(TASK_THREAD_FCSR_F0,
 305                  offsetof(struct task_struct, thread.fstate.fcsr)
 306                - offsetof(struct task_struct, thread.fstate.f[0])
 307        );
 308
 309        /*
 310         * We allocate a pt_regs on the stack when entering the kernel.  This
 311         * ensures the alignment is sane.
 312         */
 313        DEFINE(PT_SIZE_ON_STACK, ALIGN(sizeof(struct pt_regs), STACK_ALIGN));
 314
 315        OFFSET(KERNEL_MAP_VIRT_ADDR, kernel_mapping, virt_addr);
 316}
 317