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 "%X0" : : "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("#define PT_R0     ", struct pt_regs, regs[0]);
  34         offset("#define PT_R1     ", struct pt_regs, regs[1]);
  35         offset("#define PT_R2     ", struct pt_regs, regs[2]);
  36         offset("#define PT_R3     ", struct pt_regs, regs[3]);
  37         offset("#define PT_R4     ", struct pt_regs, regs[4]);
  38         offset("#define PT_R5     ", struct pt_regs, regs[5]);
  39         offset("#define PT_R6     ", struct pt_regs, regs[6]);
  40         offset("#define PT_R7     ", struct pt_regs, regs[7]);
  41         offset("#define PT_R8     ", struct pt_regs, regs[8]);
  42         offset("#define PT_R9     ", struct pt_regs, regs[9]);
  43         offset("#define PT_R10    ", struct pt_regs, regs[10]);
  44         offset("#define PT_R11    ", struct pt_regs, regs[11]);
  45         offset("#define PT_R12    ", struct pt_regs, regs[12]);
  46         offset("#define PT_R13    ", struct pt_regs, regs[13]);
  47         offset("#define PT_R14    ", struct pt_regs, regs[14]);
  48         offset("#define PT_R15    ", struct pt_regs, regs[15]);
  49         offset("#define PT_R16    ", struct pt_regs, regs[16]);
  50         offset("#define PT_R17    ", struct pt_regs, regs[17]);
  51         offset("#define PT_R18    ", struct pt_regs, regs[18]);
  52         offset("#define PT_R19    ", struct pt_regs, regs[19]);
  53         offset("#define PT_R20    ", struct pt_regs, regs[20]);
  54         offset("#define PT_R21    ", struct pt_regs, regs[21]);
  55         offset("#define PT_R22    ", struct pt_regs, regs[22]);
  56         offset("#define PT_R23    ", struct pt_regs, regs[23]);
  57         offset("#define PT_R24    ", struct pt_regs, regs[24]);
  58         offset("#define PT_R25    ", struct pt_regs, regs[25]);
  59         offset("#define PT_R26    ", struct pt_regs, regs[26]);
  60         offset("#define PT_R27    ", struct pt_regs, regs[27]);
  61         offset("#define PT_R28    ", struct pt_regs, regs[28]);
  62         offset("#define PT_R29    ", struct pt_regs, regs[29]);
  63         offset("#define PT_R30    ", struct pt_regs, regs[30]);
  64         offset("#define PT_R31    ", struct pt_regs, regs[31]);
  65         offset("#define PT_LO     ", struct pt_regs, lo);
  66         offset("#define PT_HI     ", struct pt_regs, hi);
  67 #ifdef CONFIG_CPU_HAS_SMARTMIPS
  68         offset("#define PT_ACX    ", struct pt_regs, acx);
  69 #endif
  70         offset("#define PT_EPC    ", struct pt_regs, cp0_epc);
  71         offset("#define PT_BVADDR ", struct pt_regs, cp0_badvaddr);
  72         offset("#define PT_STATUS ", struct pt_regs, cp0_status);
  73         offset("#define PT_CAUSE  ", struct pt_regs, cp0_cause);
  74 #ifdef CONFIG_MIPS_MT_SMTC
  75         offset("#define PT_TCSTATUS  ", struct pt_regs, cp0_tcstatus);
  76 #endif /* CONFIG_MIPS_MT_SMTC */
  77         size("#define PT_SIZE   ", struct pt_regs);
  78         linefeed;
  79 }
  80
  81 void output_task_defines(void)
  82 {
  83         text("/* MIPS task_struct offsets. */");
  84         offset("#define TASK_STATE         ", struct task_struct, state);
  85         offset("#define TASK_THREAD_INFO   ", struct task_struct, stack);
  86         offset("#define TASK_FLAGS         ", struct task_struct, flags);
  87         offset("#define TASK_MM            ", struct task_struct, mm);
  88         offset("#define TASK_PID           ", struct task_struct, pid);
  89         size(  "#define 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("#define TI_TASK            ", struct thread_info, task);
  97         offset("#define TI_EXEC_DOMAIN     ", struct thread_info, exec_domain);
  98         offset("#define TI_FLAGS           ", struct thread_info, flags);
  99         offset("#define TI_TP_VALUE        ", struct thread_info, tp_value);
 100         offset("#define TI_CPU             ", struct thread_info, cpu);
 101         offset("#define TI_PRE_COUNT       ", struct thread_info, preempt_count);
 102         offset("#define TI_ADDR_LIMIT      ", struct thread_info, addr_limit);
 103         offset("#define TI_RESTART_BLOCK   ", struct thread_info, restart_block);
 104         offset("#define TI_REGS            ", struct thread_info, regs);
 105         constant("#define _THREAD_SIZE       ", THREAD_SIZE);
 106         constant("#define _THREAD_MASK       ", THREAD_MASK);
 107         linefeed;
 108 }
 109
 110 void output_thread_defines(void)
 111 {
 112         text("/* MIPS specific thread_struct offsets. */");
 113         offset("#define THREAD_REG16   ", struct task_struct, thread.reg16);
 114         offset("#define THREAD_REG17   ", struct task_struct, thread.reg17);
 115         offset("#define THREAD_REG18   ", struct task_struct, thread.reg18);
 116         offset("#define THREAD_REG19   ", struct task_struct, thread.reg19);
 117         offset("#define THREAD_REG20   ", struct task_struct, thread.reg20);
 118         offset("#define THREAD_REG21   ", struct task_struct, thread.reg21);
 119         offset("#define THREAD_REG22   ", struct task_struct, thread.reg22);
 120         offset("#define THREAD_REG23   ", struct task_struct, thread.reg23);
 121         offset("#define THREAD_REG29   ", struct task_struct, thread.reg29);
 122         offset("#define THREAD_REG30   ", struct task_struct, thread.reg30);
 123         offset("#define THREAD_REG31   ", struct task_struct, thread.reg31);
 124         offset("#define THREAD_STATUS  ", struct task_struct,
 125                thread.cp0_status);
 126         offset("#define THREAD_FPU     ", struct task_struct, thread.fpu);
 127
 128         offset("#define THREAD_BVADDR  ", struct task_struct, \
 129                thread.cp0_badvaddr);
 130         offset("#define THREAD_BUADDR  ", struct task_struct, \
 131                thread.cp0_baduaddr);
 132         offset("#define THREAD_ECODE   ", struct task_struct, \
 133                thread.error_code);
 134         offset("#define THREAD_TRAPNO  ", struct task_struct, thread.trap_no);
 135         offset("#define THREAD_TRAMP   ", struct task_struct, \
 136                thread.irix_trampoline);
 137         offset("#define THREAD_OLDCTX  ", struct task_struct, \
 138                thread.irix_oldctx);
 139         linefeed;
 140 }
 141
 142 void output_thread_fpu_defines(void)
 143 {
 144         offset("#define THREAD_FPR0    ",
 145                struct task_struct, thread.fpu.fpr[0]);
 146         offset("#define THREAD_FPR1    ",
 147                struct task_struct, thread.fpu.fpr[1]);
 148         offset("#define THREAD_FPR2    ",
 149                struct task_struct, thread.fpu.fpr[2]);
 150         offset("#define THREAD_FPR3    ",
 151                struct task_struct, thread.fpu.fpr[3]);
 152         offset("#define THREAD_FPR4    ",
 153                struct task_struct, thread.fpu.fpr[4]);
 154         offset("#define THREAD_FPR5    ",
 155                struct task_struct, thread.fpu.fpr[5]);
 156         offset("#define THREAD_FPR6    ",
 157                struct task_struct, thread.fpu.fpr[6]);
 158         offset("#define THREAD_FPR7    ",
 159                struct task_struct, thread.fpu.fpr[7]);
 160         offset("#define THREAD_FPR8    ",
 161                struct task_struct, thread.fpu.fpr[8]);
 162         offset("#define THREAD_FPR9    ",
 163                struct task_struct, thread.fpu.fpr[9]);
 164         offset("#define THREAD_FPR10   ",
 165                struct task_struct, thread.fpu.fpr[10]);
 166         offset("#define THREAD_FPR11   ",
 167                struct task_struct, thread.fpu.fpr[11]);
 168         offset("#define THREAD_FPR12   ",
 169                struct task_struct, thread.fpu.fpr[12]);
 170         offset("#define THREAD_FPR13   ",
 171                struct task_struct, thread.fpu.fpr[13]);
 172         offset("#define THREAD_FPR14   ",
 173                struct task_struct, thread.fpu.fpr[14]);
 174         offset("#define THREAD_FPR15   ",
 175                struct task_struct, thread.fpu.fpr[15]);
 176         offset("#define THREAD_FPR16   ",
 177                struct task_struct, thread.fpu.fpr[16]);
 178         offset("#define THREAD_FPR17   ",
 179                struct task_struct, thread.fpu.fpr[17]);
 180         offset("#define THREAD_FPR18   ",
 181                struct task_struct, thread.fpu.fpr[18]);
 182         offset("#define THREAD_FPR19   ",
 183                struct task_struct, thread.fpu.fpr[19]);
 184         offset("#define THREAD_FPR20   ",
 185                struct task_struct, thread.fpu.fpr[20]);
 186         offset("#define THREAD_FPR21   ",
 187                struct task_struct, thread.fpu.fpr[21]);
 188         offset("#define THREAD_FPR22   ",
 189                struct task_struct, thread.fpu.fpr[22]);
 190         offset("#define THREAD_FPR23   ",
 191                struct task_struct, thread.fpu.fpr[23]);
 192         offset("#define THREAD_FPR24   ",
 193                struct task_struct, thread.fpu.fpr[24]);
 194         offset("#define THREAD_FPR25   ",
 195                struct task_struct, thread.fpu.fpr[25]);
 196         offset("#define THREAD_FPR26   ",
 197                struct task_struct, thread.fpu.fpr[26]);
 198         offset("#define THREAD_FPR27   ",
 199                struct task_struct, thread.fpu.fpr[27]);
 200         offset("#define THREAD_FPR28   ",
 201                struct task_struct, thread.fpu.fpr[28]);
 202         offset("#define THREAD_FPR29   ",
 203                struct task_struct, thread.fpu.fpr[29]);
 204         offset("#define THREAD_FPR30   ",
 205                struct task_struct, thread.fpu.fpr[30]);
 206         offset("#define THREAD_FPR31   ",
 207                struct task_struct, thread.fpu.fpr[31]);
 208
 209         offset("#define 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("#define STRUCT_PAGE_SIZE   ", struct page);
 218         linefeed;
 219         text("/* Linux mm_struct offsets. */");
 220         offset("#define MM_USERS      ", struct mm_struct, mm_users);
 221         offset("#define MM_PGD        ", struct mm_struct, pgd);
 222         offset("#define MM_CONTEXT    ", struct mm_struct, context);
 223         linefeed;
 224         constant("#define _PAGE_SIZE     ", PAGE_SIZE);
 225         constant("#define _PAGE_SHIFT    ", PAGE_SHIFT);
 226         linefeed;
 227         constant("#define _PGD_T_SIZE    ", sizeof(pgd_t));
 228         constant("#define _PMD_T_SIZE    ", sizeof(pmd_t));
 229         constant("#define _PTE_T_SIZE    ", sizeof(pte_t));
 230         linefeed;
 231         constant("#define _PGD_T_LOG2    ", PGD_T_LOG2);
 232         constant("#define _PMD_T_LOG2    ", PMD_T_LOG2);
 233         constant("#define _PTE_T_LOG2    ", PTE_T_LOG2);
 234         linefeed;
 235         constant("#define _PGD_ORDER     ", PGD_ORDER);
 236         constant("#define _PMD_ORDER     ", PMD_ORDER);
 237         constant("#define _PTE_ORDER     ", PTE_ORDER);
 238         linefeed;
 239         constant("#define _PMD_SHIFT     ", PMD_SHIFT);
 240         constant("#define _PGDIR_SHIFT   ", PGDIR_SHIFT);
 241         linefeed;
 242         constant("#define _PTRS_PER_PGD  ", PTRS_PER_PGD);
 243         constant("#define _PTRS_PER_PMD  ", PTRS_PER_PMD);
 244         constant("#define _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("#define SC_REGS       ", struct sigcontext, sc_regs);
 253         offset("#define SC_FPREGS     ", struct sigcontext, sc_fpregs);
 254         offset("#define SC_ACX        ", struct sigcontext, sc_acx);
 255         offset("#define SC_MDHI       ", struct sigcontext, sc_mdhi);
 256         offset("#define SC_MDLO       ", struct sigcontext, sc_mdlo);
 257         offset("#define SC_PC         ", struct sigcontext, sc_pc);
 258         offset("#define SC_FPC_CSR    ", struct sigcontext, sc_fpc_csr);
 259         offset("#define SC_FPC_EIR    ", struct sigcontext, sc_fpc_eir);
 260         offset("#define SC_HI1        ", struct sigcontext, sc_hi1);
 261         offset("#define SC_LO1        ", struct sigcontext, sc_lo1);
 262         offset("#define SC_HI2        ", struct sigcontext, sc_hi2);
 263         offset("#define SC_LO2        ", struct sigcontext, sc_lo2);
 264         offset("#define SC_HI3        ", struct sigcontext, sc_hi3);
 265         offset("#define 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("#define SC_REGS       ", struct sigcontext, sc_regs);
 275         offset("#define SC_FPREGS     ", struct sigcontext, sc_fpregs);
 276         offset("#define SC_MDHI       ", struct sigcontext, sc_mdhi);
 277         offset("#define SC_MDLO       ", struct sigcontext, sc_mdlo);
 278         offset("#define SC_PC         ", struct sigcontext, sc_pc);
 279         offset("#define 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("#define SC32_FPREGS     ", struct sigcontext32, sc_fpregs);
 289         offset("#define SC32_FPC_CSR    ", struct sigcontext32, sc_fpc_csr);
 290         offset("#define 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("#define _SIGHUP     ", SIGHUP);
 299         constant("#define _SIGINT     ", SIGINT);
 300         constant("#define _SIGQUIT    ", SIGQUIT);
 301         constant("#define _SIGILL     ", SIGILL);
 302         constant("#define _SIGTRAP    ", SIGTRAP);
 303         constant("#define _SIGIOT     ", SIGIOT);
 304         constant("#define _SIGABRT    ", SIGABRT);
 305         constant("#define _SIGEMT     ", SIGEMT);
 306         constant("#define _SIGFPE     ", SIGFPE);
 307         constant("#define _SIGKILL    ", SIGKILL);
 308         constant("#define _SIGBUS     ", SIGBUS);
 309         constant("#define _SIGSEGV    ", SIGSEGV);
 310         constant("#define _SIGSYS     ", SIGSYS);
 311         constant("#define _SIGPIPE    ", SIGPIPE);
 312         constant("#define _SIGALRM    ", SIGALRM);
 313         constant("#define _SIGTERM    ", SIGTERM);
 314         constant("#define _SIGUSR1    ", SIGUSR1);
 315         constant("#define _SIGUSR2    ", SIGUSR2);
 316         constant("#define _SIGCHLD    ", SIGCHLD);
 317         constant("#define _SIGPWR     ", SIGPWR);
 318         constant("#define _SIGWINCH   ", SIGWINCH);
 319         constant("#define _SIGURG     ", SIGURG);
 320         constant("#define _SIGIO      ", SIGIO);
 321         constant("#define _SIGSTOP    ", SIGSTOP);
 322         constant("#define _SIGTSTP    ", SIGTSTP);
 323         constant("#define _SIGCONT    ", SIGCONT);
 324         constant("#define _SIGTTIN    ", SIGTTIN);
 325         constant("#define _SIGTTOU    ", SIGTTOU);
 326         constant("#define _SIGVTALRM  ", SIGVTALRM);
 327         constant("#define _SIGPROF    ", SIGPROF);
 328         constant("#define _SIGXCPU    ", SIGXCPU);
 329         constant("#define _SIGXFSZ    ", SIGXFSZ);
 330         linefeed;
 331 }
 332
 333 void output_irq_cpustat_t_defines(void)
 334 {
 335         text("/* Linux irq_cpustat_t offsets. */");
 336         offset("#define IC_SOFTIRQ_PENDING ", irq_cpustat_t, __softirq_pending);
 337         size("#define IC_IRQ_CPUSTAT_T   ", irq_cpustat_t);
 338         linefeed;
 339 }