1 /* 2 * Copyright (C) 2012 Regents of the University of California 3 * Copyright (C) 2017 SiFive 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License 7 * as published by the Free Software Foundation, version 2. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 */ 14 15 #define GENERATING_ASM_OFFSETS 16 17 #include <linux/kbuild.h> 18 #include <linux/sched.h> 19 #include <asm/thread_info.h> 20 #include <asm/ptrace.h> 21 22 void asm_offsets(void) 23 { 24 OFFSET(TASK_THREAD_RA, task_struct, thread.ra); 25 OFFSET(TASK_THREAD_SP, task_struct, thread.sp); 26 OFFSET(TASK_THREAD_S0, task_struct, thread.s[0]); 27 OFFSET(TASK_THREAD_S1, task_struct, thread.s[1]); 28 OFFSET(TASK_THREAD_S2, task_struct, thread.s[2]); 29 OFFSET(TASK_THREAD_S3, task_struct, thread.s[3]); 30 OFFSET(TASK_THREAD_S4, task_struct, thread.s[4]); 31 OFFSET(TASK_THREAD_S5, task_struct, thread.s[5]); 32 OFFSET(TASK_THREAD_S6, task_struct, thread.s[6]); 33 OFFSET(TASK_THREAD_S7, task_struct, thread.s[7]); 34 OFFSET(TASK_THREAD_S8, task_struct, thread.s[8]); 35 OFFSET(TASK_THREAD_S9, task_struct, thread.s[9]); 36 OFFSET(TASK_THREAD_S10, task_struct, thread.s[10]); 37 OFFSET(TASK_THREAD_S11, task_struct, thread.s[11]); 38 OFFSET(TASK_THREAD_SP, task_struct, thread.sp); 39 OFFSET(TASK_STACK, task_struct, stack); 40 OFFSET(TASK_TI, task_struct, thread_info); 41 OFFSET(TASK_TI_FLAGS, task_struct, thread_info.flags); 42 OFFSET(TASK_TI_PREEMPT_COUNT, task_struct, thread_info.preempt_count); 43 OFFSET(TASK_TI_KERNEL_SP, task_struct, thread_info.kernel_sp); 44 OFFSET(TASK_TI_USER_SP, task_struct, thread_info.user_sp); 45 OFFSET(TASK_TI_CPU, task_struct, thread_info.cpu); 46 47 OFFSET(TASK_THREAD_F0, task_struct, thread.fstate.f[0]); 48 OFFSET(TASK_THREAD_F1, task_struct, thread.fstate.f[1]); 49 OFFSET(TASK_THREAD_F2, task_struct, thread.fstate.f[2]); 50 OFFSET(TASK_THREAD_F3, task_struct, thread.fstate.f[3]); 51 OFFSET(TASK_THREAD_F4, task_struct, thread.fstate.f[4]); 52 OFFSET(TASK_THREAD_F5, task_struct, thread.fstate.f[5]); 53 OFFSET(TASK_THREAD_F6, task_struct, thread.fstate.f[6]); 54 OFFSET(TASK_THREAD_F7, task_struct, thread.fstate.f[7]); 55 OFFSET(TASK_THREAD_F8, task_struct, thread.fstate.f[8]); 56 OFFSET(TASK_THREAD_F9, task_struct, thread.fstate.f[9]); 57 OFFSET(TASK_THREAD_F10, task_struct, thread.fstate.f[10]); 58 OFFSET(TASK_THREAD_F11, task_struct, thread.fstate.f[11]); 59 OFFSET(TASK_THREAD_F12, task_struct, thread.fstate.f[12]); 60 OFFSET(TASK_THREAD_F13, task_struct, thread.fstate.f[13]); 61 OFFSET(TASK_THREAD_F14, task_struct, thread.fstate.f[14]); 62 OFFSET(TASK_THREAD_F15, task_struct, thread.fstate.f[15]); 63 OFFSET(TASK_THREAD_F16, task_struct, thread.fstate.f[16]); 64 OFFSET(TASK_THREAD_F17, task_struct, thread.fstate.f[17]); 65 OFFSET(TASK_THREAD_F18, task_struct, thread.fstate.f[18]); 66 OFFSET(TASK_THREAD_F19, task_struct, thread.fstate.f[19]); 67 OFFSET(TASK_THREAD_F20, task_struct, thread.fstate.f[20]); 68 OFFSET(TASK_THREAD_F21, task_struct, thread.fstate.f[21]); 69 OFFSET(TASK_THREAD_F22, task_struct, thread.fstate.f[22]); 70 OFFSET(TASK_THREAD_F23, task_struct, thread.fstate.f[23]); 71 OFFSET(TASK_THREAD_F24, task_struct, thread.fstate.f[24]); 72 OFFSET(TASK_THREAD_F25, task_struct, thread.fstate.f[25]); 73 OFFSET(TASK_THREAD_F26, task_struct, thread.fstate.f[26]); 74 OFFSET(TASK_THREAD_F27, task_struct, thread.fstate.f[27]); 75 OFFSET(TASK_THREAD_F28, task_struct, thread.fstate.f[28]); 76 OFFSET(TASK_THREAD_F29, task_struct, thread.fstate.f[29]); 77 OFFSET(TASK_THREAD_F30, task_struct, thread.fstate.f[30]); 78 OFFSET(TASK_THREAD_F31, task_struct, thread.fstate.f[31]); 79 OFFSET(TASK_THREAD_FCSR, task_struct, thread.fstate.fcsr); 80 81 DEFINE(PT_SIZE, sizeof(struct pt_regs)); 82 OFFSET(PT_SEPC, pt_regs, sepc); 83 OFFSET(PT_RA, pt_regs, ra); 84 OFFSET(PT_FP, pt_regs, s0); 85 OFFSET(PT_S0, pt_regs, s0); 86 OFFSET(PT_S1, pt_regs, s1); 87 OFFSET(PT_S2, pt_regs, s2); 88 OFFSET(PT_S3, pt_regs, s3); 89 OFFSET(PT_S4, pt_regs, s4); 90 OFFSET(PT_S5, pt_regs, s5); 91 OFFSET(PT_S6, pt_regs, s6); 92 OFFSET(PT_S7, pt_regs, s7); 93 OFFSET(PT_S8, pt_regs, s8); 94 OFFSET(PT_S9, pt_regs, s9); 95 OFFSET(PT_S10, pt_regs, s10); 96 OFFSET(PT_S11, pt_regs, s11); 97 OFFSET(PT_SP, pt_regs, sp); 98 OFFSET(PT_TP, pt_regs, tp); 99 OFFSET(PT_A0, pt_regs, a0); 100 OFFSET(PT_A1, pt_regs, a1); 101 OFFSET(PT_A2, pt_regs, a2); 102 OFFSET(PT_A3, pt_regs, a3); 103 OFFSET(PT_A4, pt_regs, a4); 104 OFFSET(PT_A5, pt_regs, a5); 105 OFFSET(PT_A6, pt_regs, a6); 106 OFFSET(PT_A7, pt_regs, a7); 107 OFFSET(PT_T0, pt_regs, t0); 108 OFFSET(PT_T1, pt_regs, t1); 109 OFFSET(PT_T2, pt_regs, t2); 110 OFFSET(PT_T3, pt_regs, t3); 111 OFFSET(PT_T4, pt_regs, t4); 112 OFFSET(PT_T5, pt_regs, t5); 113 OFFSET(PT_T6, pt_regs, t6); 114 OFFSET(PT_GP, pt_regs, gp); 115 OFFSET(PT_ORIG_A0, pt_regs, orig_a0); 116 OFFSET(PT_SSTATUS, pt_regs, sstatus); 117 OFFSET(PT_SBADADDR, pt_regs, sbadaddr); 118 OFFSET(PT_SCAUSE, pt_regs, scause); 119 120 /* 121 * THREAD_{F,X}* might be larger than a S-type offset can handle, but 122 * these are used in performance-sensitive assembly so we can't resort 123 * to loading the long immediate every time. 124 */ 125 DEFINE(TASK_THREAD_RA_RA, 126 offsetof(struct task_struct, thread.ra) 127 - offsetof(struct task_struct, thread.ra) 128 ); 129 DEFINE(TASK_THREAD_SP_RA, 130 offsetof(struct task_struct, thread.sp) 131 - offsetof(struct task_struct, thread.ra) 132 ); 133 DEFINE(TASK_THREAD_S0_RA, 134 offsetof(struct task_struct, thread.s[0]) 135 - offsetof(struct task_struct, thread.ra) 136 ); 137 DEFINE(TASK_THREAD_S1_RA, 138 offsetof(struct task_struct, thread.s[1]) 139 - offsetof(struct task_struct, thread.ra) 140 ); 141 DEFINE(TASK_THREAD_S2_RA, 142 offsetof(struct task_struct, thread.s[2]) 143 - offsetof(struct task_struct, thread.ra) 144 ); 145 DEFINE(TASK_THREAD_S3_RA, 146 offsetof(struct task_struct, thread.s[3]) 147 - offsetof(struct task_struct, thread.ra) 148 ); 149 DEFINE(TASK_THREAD_S4_RA, 150 offsetof(struct task_struct, thread.s[4]) 151 - offsetof(struct task_struct, thread.ra) 152 ); 153 DEFINE(TASK_THREAD_S5_RA, 154 offsetof(struct task_struct, thread.s[5]) 155 - offsetof(struct task_struct, thread.ra) 156 ); 157 DEFINE(TASK_THREAD_S6_RA, 158 offsetof(struct task_struct, thread.s[6]) 159 - offsetof(struct task_struct, thread.ra) 160 ); 161 DEFINE(TASK_THREAD_S7_RA, 162 offsetof(struct task_struct, thread.s[7]) 163 - offsetof(struct task_struct, thread.ra) 164 ); 165 DEFINE(TASK_THREAD_S8_RA, 166 offsetof(struct task_struct, thread.s[8]) 167 - offsetof(struct task_struct, thread.ra) 168 ); 169 DEFINE(TASK_THREAD_S9_RA, 170 offsetof(struct task_struct, thread.s[9]) 171 - offsetof(struct task_struct, thread.ra) 172 ); 173 DEFINE(TASK_THREAD_S10_RA, 174 offsetof(struct task_struct, thread.s[10]) 175 - offsetof(struct task_struct, thread.ra) 176 ); 177 DEFINE(TASK_THREAD_S11_RA, 178 offsetof(struct task_struct, thread.s[11]) 179 - offsetof(struct task_struct, thread.ra) 180 ); 181 182 DEFINE(TASK_THREAD_F0_F0, 183 offsetof(struct task_struct, thread.fstate.f[0]) 184 - offsetof(struct task_struct, thread.fstate.f[0]) 185 ); 186 DEFINE(TASK_THREAD_F1_F0, 187 offsetof(struct task_struct, thread.fstate.f[1]) 188 - offsetof(struct task_struct, thread.fstate.f[0]) 189 ); 190 DEFINE(TASK_THREAD_F2_F0, 191 offsetof(struct task_struct, thread.fstate.f[2]) 192 - offsetof(struct task_struct, thread.fstate.f[0]) 193 ); 194 DEFINE(TASK_THREAD_F3_F0, 195 offsetof(struct task_struct, thread.fstate.f[3]) 196 - offsetof(struct task_struct, thread.fstate.f[0]) 197 ); 198 DEFINE(TASK_THREAD_F4_F0, 199 offsetof(struct task_struct, thread.fstate.f[4]) 200 - offsetof(struct task_struct, thread.fstate.f[0]) 201 ); 202 DEFINE(TASK_THREAD_F5_F0, 203 offsetof(struct task_struct, thread.fstate.f[5]) 204 - offsetof(struct task_struct, thread.fstate.f[0]) 205 ); 206 DEFINE(TASK_THREAD_F6_F0, 207 offsetof(struct task_struct, thread.fstate.f[6]) 208 - offsetof(struct task_struct, thread.fstate.f[0]) 209 ); 210 DEFINE(TASK_THREAD_F7_F0, 211 offsetof(struct task_struct, thread.fstate.f[7]) 212 - offsetof(struct task_struct, thread.fstate.f[0]) 213 ); 214 DEFINE(TASK_THREAD_F8_F0, 215 offsetof(struct task_struct, thread.fstate.f[8]) 216 - offsetof(struct task_struct, thread.fstate.f[0]) 217 ); 218 DEFINE(TASK_THREAD_F9_F0, 219 offsetof(struct task_struct, thread.fstate.f[9]) 220 - offsetof(struct task_struct, thread.fstate.f[0]) 221 ); 222 DEFINE(TASK_THREAD_F10_F0, 223 offsetof(struct task_struct, thread.fstate.f[10]) 224 - offsetof(struct task_struct, thread.fstate.f[0]) 225 ); 226 DEFINE(TASK_THREAD_F11_F0, 227 offsetof(struct task_struct, thread.fstate.f[11]) 228 - offsetof(struct task_struct, thread.fstate.f[0]) 229 ); 230 DEFINE(TASK_THREAD_F12_F0, 231 offsetof(struct task_struct, thread.fstate.f[12]) 232 - offsetof(struct task_struct, thread.fstate.f[0]) 233 ); 234 DEFINE(TASK_THREAD_F13_F0, 235 offsetof(struct task_struct, thread.fstate.f[13]) 236 - offsetof(struct task_struct, thread.fstate.f[0]) 237 ); 238 DEFINE(TASK_THREAD_F14_F0, 239 offsetof(struct task_struct, thread.fstate.f[14]) 240 - offsetof(struct task_struct, thread.fstate.f[0]) 241 ); 242 DEFINE(TASK_THREAD_F15_F0, 243 offsetof(struct task_struct, thread.fstate.f[15]) 244 - offsetof(struct task_struct, thread.fstate.f[0]) 245 ); 246 DEFINE(TASK_THREAD_F16_F0, 247 offsetof(struct task_struct, thread.fstate.f[16]) 248 - offsetof(struct task_struct, thread.fstate.f[0]) 249 ); 250 DEFINE(TASK_THREAD_F17_F0, 251 offsetof(struct task_struct, thread.fstate.f[17]) 252 - offsetof(struct task_struct, thread.fstate.f[0]) 253 ); 254 DEFINE(TASK_THREAD_F18_F0, 255 offsetof(struct task_struct, thread.fstate.f[18]) 256 - offsetof(struct task_struct, thread.fstate.f[0]) 257 ); 258 DEFINE(TASK_THREAD_F19_F0, 259 offsetof(struct task_struct, thread.fstate.f[19]) 260 - offsetof(struct task_struct, thread.fstate.f[0]) 261 ); 262 DEFINE(TASK_THREAD_F20_F0, 263 offsetof(struct task_struct, thread.fstate.f[20]) 264 - offsetof(struct task_struct, thread.fstate.f[0]) 265 ); 266 DEFINE(TASK_THREAD_F21_F0, 267 offsetof(struct task_struct, thread.fstate.f[21]) 268 - offsetof(struct task_struct, thread.fstate.f[0]) 269 ); 270 DEFINE(TASK_THREAD_F22_F0, 271 offsetof(struct task_struct, thread.fstate.f[22]) 272 - offsetof(struct task_struct, thread.fstate.f[0]) 273 ); 274 DEFINE(TASK_THREAD_F23_F0, 275 offsetof(struct task_struct, thread.fstate.f[23]) 276 - offsetof(struct task_struct, thread.fstate.f[0]) 277 ); 278 DEFINE(TASK_THREAD_F24_F0, 279 offsetof(struct task_struct, thread.fstate.f[24]) 280 - offsetof(struct task_struct, thread.fstate.f[0]) 281 ); 282 DEFINE(TASK_THREAD_F25_F0, 283 offsetof(struct task_struct, thread.fstate.f[25]) 284 - offsetof(struct task_struct, thread.fstate.f[0]) 285 ); 286 DEFINE(TASK_THREAD_F26_F0, 287 offsetof(struct task_struct, thread.fstate.f[26]) 288 - offsetof(struct task_struct, thread.fstate.f[0]) 289 ); 290 DEFINE(TASK_THREAD_F27_F0, 291 offsetof(struct task_struct, thread.fstate.f[27]) 292 - offsetof(struct task_struct, thread.fstate.f[0]) 293 ); 294 DEFINE(TASK_THREAD_F28_F0, 295 offsetof(struct task_struct, thread.fstate.f[28]) 296 - offsetof(struct task_struct, thread.fstate.f[0]) 297 ); 298 DEFINE(TASK_THREAD_F29_F0, 299 offsetof(struct task_struct, thread.fstate.f[29]) 300 - offsetof(struct task_struct, thread.fstate.f[0]) 301 ); 302 DEFINE(TASK_THREAD_F30_F0, 303 offsetof(struct task_struct, thread.fstate.f[30]) 304 - offsetof(struct task_struct, thread.fstate.f[0]) 305 ); 306 DEFINE(TASK_THREAD_F31_F0, 307 offsetof(struct task_struct, thread.fstate.f[31]) 308 - offsetof(struct task_struct, thread.fstate.f[0]) 309 ); 310 DEFINE(TASK_THREAD_FCSR_F0, 311 offsetof(struct task_struct, thread.fstate.fcsr) 312 - offsetof(struct task_struct, thread.fstate.f[0]) 313 ); 314 315 /* The assembler needs access to THREAD_SIZE as well. */ 316 DEFINE(ASM_THREAD_SIZE, THREAD_SIZE); 317 318 /* 319 * We allocate a pt_regs on the stack when entering the kernel. This 320 * ensures the alignment is sane. 321 */ 322 DEFINE(PT_SIZE_ON_STACK, ALIGN(sizeof(struct pt_regs), STACK_ALIGN)); 323 } 324