arch/mips/kernel/asm-offsets.c

   1 /*
   2  * offset.c: Calculate pt_regs and task_struct offsets.
   3  *
   4  * Copyright (C) 1996 David S. Miller
   5  * Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Ralf Baechle
   6  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
   7  *
   8  * Kevin Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
   9  * Copyright (C) 2000 MIPS Technologies, Inc.
  10  */
  11 #include <linux/compat.h>
  12 #include <linux/types.h>
  13 #include <linux/sched.h>
  14 #include <linux/mm.h>
  15 #include <linux/interrupt.h>
  16
  17 #include <asm/ptrace.h>
  18 #include <asm/processor.h>
  19
  20 #define text(t) __asm__("\n->#" t)
  21 #define _offset(type, member) (&(((type *)NULL)->member))
  22 #define offset(string, ptr, member) \
  23         __asm__("\n->" string " %0" : : "i" (_offset(ptr, member)))
  24 #define constant(string, member) \
  25         __asm__("\n->" string " %0" : : "ri" (member))
  26 #define size(string, size) \
  27         __asm__("\n->" string " %0" : : "i" (sizeof(size)))
  28 #define linefeed text("")
  29
  30 void output_ptreg_defines(void)
  31 {
  32         text("MIPS pt_regs offsets.");
  33         offset("PT_R0", struct pt_regs, regs[0]);
  34         offset("PT_R1", struct pt_regs, regs[1]);
  35         offset("PT_R2", struct pt_regs, regs[2]);
  36         offset("PT_R3", struct pt_regs, regs[3]);
  37         offset("PT_R4", struct pt_regs, regs[4]);
  38         offset("PT_R5", struct pt_regs, regs[5]);
  39         offset("PT_R6", struct pt_regs, regs[6]);
  40         offset("PT_R7", struct pt_regs, regs[7]);
  41         offset("PT_R8", struct pt_regs, regs[8]);
  42         offset("PT_R9", struct pt_regs, regs[9]);
  43         offset("PT_R10", struct pt_regs, regs[10]);
  44         offset("PT_R11", struct pt_regs, regs[11]);
  45         offset("PT_R12", struct pt_regs, regs[12]);
  46         offset("PT_R13", struct pt_regs, regs[13]);
  47         offset("PT_R14", struct pt_regs, regs[14]);
  48         offset("PT_R15", struct pt_regs, regs[15]);
  49         offset("PT_R16", struct pt_regs, regs[16]);
  50         offset("PT_R17", struct pt_regs, regs[17]);
  51         offset("PT_R18", struct pt_regs, regs[18]);
  52         offset("PT_R19", struct pt_regs, regs[19]);
  53         offset("PT_R20", struct pt_regs, regs[20]);
  54         offset("PT_R21", struct pt_regs, regs[21]);
  55         offset("PT_R22", struct pt_regs, regs[22]);
  56         offset("PT_R23", struct pt_regs, regs[23]);
  57         offset("PT_R24", struct pt_regs, regs[24]);
  58         offset("PT_R25", struct pt_regs, regs[25]);
  59         offset("PT_R26", struct pt_regs, regs[26]);
  60         offset("PT_R27", struct pt_regs, regs[27]);
  61         offset("PT_R28", struct pt_regs, regs[28]);
  62         offset("PT_R29", struct pt_regs, regs[29]);
  63         offset("PT_R30", struct pt_regs, regs[30]);
  64         offset("PT_R31", struct pt_regs, regs[31]);
  65         offset("PT_LO", struct pt_regs, lo);
  66         offset("PT_HI", struct pt_regs, hi);
  67 #ifdef CONFIG_CPU_HAS_SMARTMIPS
  68         offset("PT_ACX", struct pt_regs, acx);
  69 #endif
  70         offset("PT_EPC", struct pt_regs, cp0_epc);
  71         offset("PT_BVADDR", struct pt_regs, cp0_badvaddr);
  72         offset("PT_STATUS", struct pt_regs, cp0_status);
  73         offset("PT_CAUSE", struct pt_regs, cp0_cause);
  74 #ifdef CONFIG_MIPS_MT_SMTC
  75         offset("PT_TCSTATUS", struct pt_regs, cp0_tcstatus);
  76 #endif /* CONFIG_MIPS_MT_SMTC */
  77         size("PT_SIZE", struct pt_regs);
  78         linefeed;
  79 }
  80
  81 void output_task_defines(void)
  82 {
  83         text("MIPS task_struct offsets.");
  84         offset("TASK_STATE", struct task_struct, state);
  85         offset("TASK_THREAD_INFO", struct task_struct, stack);
  86         offset("TASK_FLAGS", struct task_struct, flags);
  87         offset("TASK_MM", struct task_struct, mm);
  88         offset("TASK_PID", struct task_struct, pid);
  89         size(  "TASK_STRUCT_SIZE", struct task_struct);
  90         linefeed;
  91 }
  92
  93 void output_thread_info_defines(void)
  94 {
  95         text("MIPS thread_info offsets.");
  96         offset("TI_TASK", struct thread_info, task);
  97         offset("TI_EXEC_DOMAIN", struct thread_info, exec_domain);
  98         offset("TI_FLAGS", struct thread_info, flags);
  99         offset("TI_TP_VALUE", struct thread_info, tp_value);
 100         offset("TI_CPU", struct thread_info, cpu);
 101         offset("TI_PRE_COUNT", struct thread_info, preempt_count);
 102         offset("TI_ADDR_LIMIT", struct thread_info, addr_limit);
 103         offset("TI_RESTART_BLOCK", struct thread_info, restart_block);
 104         offset("TI_REGS", struct thread_info, regs);
 105         constant("_THREAD_SIZE", THREAD_SIZE);
 106         constant("_THREAD_MASK", THREAD_MASK);
 107         linefeed;
 108 }
 109
 110 void output_thread_defines(void)
 111 {
 112         text("MIPS specific thread_struct offsets.");
 113         offset("THREAD_REG16", struct task_struct, thread.reg16);
 114         offset("THREAD_REG17", struct task_struct, thread.reg17);
 115         offset("THREAD_REG18", struct task_struct, thread.reg18);
 116         offset("THREAD_REG19", struct task_struct, thread.reg19);
 117         offset("THREAD_REG20", struct task_struct, thread.reg20);
 118         offset("THREAD_REG21", struct task_struct, thread.reg21);
 119         offset("THREAD_REG22", struct task_struct, thread.reg22);
 120         offset("THREAD_REG23", struct task_struct, thread.reg23);
 121         offset("THREAD_REG29", struct task_struct, thread.reg29);
 122         offset("THREAD_REG30", struct task_struct, thread.reg30);
 123         offset("THREAD_REG31", struct task_struct, thread.reg31);
 124         offset("THREAD_STATUS", struct task_struct,
 125                thread.cp0_status);
 126         offset("THREAD_FPU", struct task_struct, thread.fpu);
 127
 128         offset("THREAD_BVADDR", struct task_struct, \
 129                thread.cp0_badvaddr);
 130         offset("THREAD_BUADDR", struct task_struct, \
 131                thread.cp0_baduaddr);
 132         offset("THREAD_ECODE", struct task_struct, \
 133                thread.error_code);
 134         offset("THREAD_TRAPNO", struct task_struct, thread.trap_no);
 135         offset("THREAD_TRAMP", struct task_struct, \
 136                thread.irix_trampoline);
 137         offset("THREAD_OLDCTX", struct task_struct, \
 138                thread.irix_oldctx);
 139         linefeed;
 140 }
 141
 142 void output_thread_fpu_defines(void)
 143 {
 144         offset("THREAD_FPR0",
 145                struct task_struct, thread.fpu.fpr[0]);
 146         offset("THREAD_FPR1",
 147                struct task_struct, thread.fpu.fpr[1]);
 148         offset("THREAD_FPR2",
 149                struct task_struct, thread.fpu.fpr[2]);
 150         offset("THREAD_FPR3",
 151                struct task_struct, thread.fpu.fpr[3]);
 152         offset("THREAD_FPR4",
 153                struct task_struct, thread.fpu.fpr[4]);
 154         offset("THREAD_FPR5",
 155                struct task_struct, thread.fpu.fpr[5]);
 156         offset("THREAD_FPR6",
 157                struct task_struct, thread.fpu.fpr[6]);
 158         offset("THREAD_FPR7",
 159                struct task_struct, thread.fpu.fpr[7]);
 160         offset("THREAD_FPR8",
 161                struct task_struct, thread.fpu.fpr[8]);
 162         offset("THREAD_FPR9",
 163                struct task_struct, thread.fpu.fpr[9]);
 164         offset("THREAD_FPR10",
 165                struct task_struct, thread.fpu.fpr[10]);
 166         offset("THREAD_FPR11",
 167                struct task_struct, thread.fpu.fpr[11]);
 168         offset("THREAD_FPR12",
 169                struct task_struct, thread.fpu.fpr[12]);
 170         offset("THREAD_FPR13",
 171                struct task_struct, thread.fpu.fpr[13]);
 172         offset("THREAD_FPR14",
 173                struct task_struct, thread.fpu.fpr[14]);
 174         offset("THREAD_FPR15",
 175                struct task_struct, thread.fpu.fpr[15]);
 176         offset("THREAD_FPR16",
 177                struct task_struct, thread.fpu.fpr[16]);
 178         offset("THREAD_FPR17",
 179                struct task_struct, thread.fpu.fpr[17]);
 180         offset("THREAD_FPR18",
 181                struct task_struct, thread.fpu.fpr[18]);
 182         offset("THREAD_FPR19",
 183                struct task_struct, thread.fpu.fpr[19]);
 184         offset("THREAD_FPR20",
 185                struct task_struct, thread.fpu.fpr[20]);
 186         offset("THREAD_FPR21",
 187                struct task_struct, thread.fpu.fpr[21]);
 188         offset("THREAD_FPR22",
 189                struct task_struct, thread.fpu.fpr[22]);
 190         offset("THREAD_FPR23",
 191                struct task_struct, thread.fpu.fpr[23]);
 192         offset("THREAD_FPR24",
 193                struct task_struct, thread.fpu.fpr[24]);
 194         offset("THREAD_FPR25",
 195                struct task_struct, thread.fpu.fpr[25]);
 196         offset("THREAD_FPR26",
 197                struct task_struct, thread.fpu.fpr[26]);
 198         offset("THREAD_FPR27",
 199                struct task_struct, thread.fpu.fpr[27]);
 200         offset("THREAD_FPR28",
 201                struct task_struct, thread.fpu.fpr[28]);
 202         offset("THREAD_FPR29",
 203                struct task_struct, thread.fpu.fpr[29]);
 204         offset("THREAD_FPR30",
 205                struct task_struct, thread.fpu.fpr[30]);
 206         offset("THREAD_FPR31",
 207                struct task_struct, thread.fpu.fpr[31]);
 208
 209         offset("THREAD_FCR31",
 210                struct task_struct, thread.fpu.fcr31);
 211         linefeed;
 212 }
 213
 214 void output_mm_defines(void)
 215 {
 216         text("Size of struct page");
 217         size("STRUCT_PAGE_SIZE", struct page);
 218         linefeed;
 219         text("Linux mm_struct offsets.");
 220         offset("MM_USERS", struct mm_struct, mm_users);
 221         offset("MM_PGD", struct mm_struct, pgd);
 222         offset("MM_CONTEXT", struct mm_struct, context);
 223         linefeed;
 224         constant("_PAGE_SIZE", PAGE_SIZE);
 225         constant("_PAGE_SHIFT", PAGE_SHIFT);
 226         linefeed;
 227         constant("_PGD_T_SIZE", sizeof(pgd_t));
 228         constant("_PMD_T_SIZE", sizeof(pmd_t));
 229         constant("_PTE_T_SIZE", sizeof(pte_t));
 230         linefeed;
 231         constant("_PGD_T_LOG2", PGD_T_LOG2);
 232         constant("_PMD_T_LOG2", PMD_T_LOG2);
 233         constant("_PTE_T_LOG2", PTE_T_LOG2);
 234         linefeed;
 235         constant("_PGD_ORDER", PGD_ORDER);
 236         constant("_PMD_ORDER", PMD_ORDER);
 237         constant("_PTE_ORDER", PTE_ORDER);
 238         linefeed;
 239         constant("_PMD_SHIFT", PMD_SHIFT);
 240         constant("_PGDIR_SHIFT", PGDIR_SHIFT);
 241         linefeed;
 242         constant("_PTRS_PER_PGD", PTRS_PER_PGD);
 243         constant("_PTRS_PER_PMD", PTRS_PER_PMD);
 244         constant("_PTRS_PER_PTE", PTRS_PER_PTE);
 245         linefeed;
 246 }
 247
 248 #ifdef CONFIG_32BIT
 249 void output_sc_defines(void)
 250 {
 251         text("Linux sigcontext offsets.");
 252         offset("SC_REGS", struct sigcontext, sc_regs);
 253         offset("SC_FPREGS", struct sigcontext, sc_fpregs);
 254         offset("SC_ACX", struct sigcontext, sc_acx);
 255         offset("SC_MDHI", struct sigcontext, sc_mdhi);
 256         offset("SC_MDLO", struct sigcontext, sc_mdlo);
 257         offset("SC_PC", struct sigcontext, sc_pc);
 258         offset("SC_FPC_CSR", struct sigcontext, sc_fpc_csr);
 259         offset("SC_FPC_EIR", struct sigcontext, sc_fpc_eir);
 260         offset("SC_HI1", struct sigcontext, sc_hi1);
 261         offset("SC_LO1", struct sigcontext, sc_lo1);
 262         offset("SC_HI2", struct sigcontext, sc_hi2);
 263         offset("SC_LO2", struct sigcontext, sc_lo2);
 264         offset("SC_HI3", struct sigcontext, sc_hi3);
 265         offset("SC_LO3", struct sigcontext, sc_lo3);
 266         linefeed;
 267 }
 268 #endif
 269
 270 #ifdef CONFIG_64BIT
 271 void output_sc_defines(void)
 272 {
 273         text("Linux sigcontext offsets.");
 274         offset("SC_REGS", struct sigcontext, sc_regs);
 275         offset("SC_FPREGS", struct sigcontext, sc_fpregs);
 276         offset("SC_MDHI", struct sigcontext, sc_mdhi);
 277         offset("SC_MDLO", struct sigcontext, sc_mdlo);
 278         offset("SC_PC", struct sigcontext, sc_pc);
 279         offset("SC_FPC_CSR", struct sigcontext, sc_fpc_csr);
 280         linefeed;
 281 }
 282 #endif
 283
 284 #ifdef CONFIG_MIPS32_COMPAT
 285 void output_sc32_defines(void)
 286 {
 287         text("Linux 32-bit sigcontext offsets.");
 288         offset("SC32_FPREGS", struct sigcontext32, sc_fpregs);
 289         offset("SC32_FPC_CSR", struct sigcontext32, sc_fpc_csr);
 290         offset("SC32_FPC_EIR", struct sigcontext32, sc_fpc_eir);
 291         linefeed;
 292 }
 293 #endif
 294
 295 void output_signal_defined(void)
 296 {
 297         text("Linux signal numbers.");
 298         constant("_SIGHUP", SIGHUP);
 299         constant("_SIGINT", SIGINT);
 300         constant("_SIGQUIT", SIGQUIT);
 301         constant("_SIGILL", SIGILL);
 302         constant("_SIGTRAP", SIGTRAP);
 303         constant("_SIGIOT", SIGIOT);
 304         constant("_SIGABRT", SIGABRT);
 305         constant("_SIGEMT", SIGEMT);
 306         constant("_SIGFPE", SIGFPE);
 307         constant("_SIGKILL", SIGKILL);
 308         constant("_SIGBUS", SIGBUS);
 309         constant("_SIGSEGV", SIGSEGV);
 310         constant("_SIGSYS", SIGSYS);
 311         constant("_SIGPIPE", SIGPIPE);
 312         constant("_SIGALRM", SIGALRM);
 313         constant("_SIGTERM", SIGTERM);
 314         constant("_SIGUSR1", SIGUSR1);
 315         constant("_SIGUSR2", SIGUSR2);
 316         constant("_SIGCHLD", SIGCHLD);
 317         constant("_SIGPWR", SIGPWR);
 318         constant("_SIGWINCH", SIGWINCH);
 319         constant("_SIGURG", SIGURG);
 320         constant("_SIGIO", SIGIO);
 321         constant("_SIGSTOP", SIGSTOP);
 322         constant("_SIGTSTP", SIGTSTP);
 323         constant("_SIGCONT", SIGCONT);
 324         constant("_SIGTTIN", SIGTTIN);
 325         constant("_SIGTTOU", SIGTTOU);
 326         constant("_SIGVTALRM", SIGVTALRM);
 327         constant("_SIGPROF", SIGPROF);
 328         constant("_SIGXCPU", SIGXCPU);
 329         constant("_SIGXFSZ", SIGXFSZ);
 330         linefeed;
 331 }
 332
 333 void output_irq_cpustat_t_defines(void)
 334 {
 335         text("Linux irq_cpustat_t offsets.");
 336         offset("IC_SOFTIRQ_PENDING", irq_cpustat_t, __softirq_pending);
 337         size("IC_IRQ_CPUSTAT_T", irq_cpustat_t);
 338         linefeed;
 339 }