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