arch/mips/kernel/offset.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/config.h>
  12 #include <linux/compat.h>
  13 #include <linux/types.h>
  14 #include <linux/sched.h>
  15 #include <linux/mm.h>
  16 #include <linux/interrupt.h>
  17
  18 #include <asm/ptrace.h>
  19 #include <asm/processor.h>
  20
  21 #define text(t) __asm__("\n@@@" t)
  22 #define _offset(type, member) (&(((type *)NULL)->member))
  23 #define offset(string, ptr, member) \
  24         __asm__("\n@@@" string "%0" : : "i" (_offset(ptr, member)))
  25 #define constant(string, member) \
  26         __asm__("\n@@@" string "%x0" : : "ri" (member))
  27 #define size(string, size) \
  28         __asm__("\n@@@" string "%0" : : "i" (sizeof(size)))
  29 #define linefeed text("")
  30
  31 void output_ptreg_defines(void)
  32 {
  33         text("/* MIPS pt_regs offsets. */");
  34         offset("#define PT_R0     ", struct pt_regs, regs[0]);
  35         offset("#define PT_R1     ", struct pt_regs, regs[1]);
  36         offset("#define PT_R2     ", struct pt_regs, regs[2]);
  37         offset("#define PT_R3     ", struct pt_regs, regs[3]);
  38         offset("#define PT_R4     ", struct pt_regs, regs[4]);
  39         offset("#define PT_R5     ", struct pt_regs, regs[5]);
  40         offset("#define PT_R6     ", struct pt_regs, regs[6]);
  41         offset("#define PT_R7     ", struct pt_regs, regs[7]);
  42         offset("#define PT_R8     ", struct pt_regs, regs[8]);
  43         offset("#define PT_R9     ", struct pt_regs, regs[9]);
  44         offset("#define PT_R10    ", struct pt_regs, regs[10]);
  45         offset("#define PT_R11    ", struct pt_regs, regs[11]);
  46         offset("#define PT_R12    ", struct pt_regs, regs[12]);
  47         offset("#define PT_R13    ", struct pt_regs, regs[13]);
  48         offset("#define PT_R14    ", struct pt_regs, regs[14]);
  49         offset("#define PT_R15    ", struct pt_regs, regs[15]);
  50         offset("#define PT_R16    ", struct pt_regs, regs[16]);
  51         offset("#define PT_R17    ", struct pt_regs, regs[17]);
  52         offset("#define PT_R18    ", struct pt_regs, regs[18]);
  53         offset("#define PT_R19    ", struct pt_regs, regs[19]);
  54         offset("#define PT_R20    ", struct pt_regs, regs[20]);
  55         offset("#define PT_R21    ", struct pt_regs, regs[21]);
  56         offset("#define PT_R22    ", struct pt_regs, regs[22]);
  57         offset("#define PT_R23    ", struct pt_regs, regs[23]);
  58         offset("#define PT_R24    ", struct pt_regs, regs[24]);
  59         offset("#define PT_R25    ", struct pt_regs, regs[25]);
  60         offset("#define PT_R26    ", struct pt_regs, regs[26]);
  61         offset("#define PT_R27    ", struct pt_regs, regs[27]);
  62         offset("#define PT_R28    ", struct pt_regs, regs[28]);
  63         offset("#define PT_R29    ", struct pt_regs, regs[29]);
  64         offset("#define PT_R30    ", struct pt_regs, regs[30]);
  65         offset("#define PT_R31    ", struct pt_regs, regs[31]);
  66         offset("#define PT_LO     ", struct pt_regs, lo);
  67         offset("#define PT_HI     ", struct pt_regs, hi);
  68         offset("#define PT_EPC    ", struct pt_regs, cp0_epc);
  69         offset("#define PT_BVADDR ", struct pt_regs, cp0_badvaddr);
  70         offset("#define PT_STATUS ", struct pt_regs, cp0_status);
  71         offset("#define PT_CAUSE  ", struct pt_regs, cp0_cause);
  72         size("#define PT_SIZE   ", struct pt_regs);
  73         linefeed;
  74 }
  75
  76 void output_task_defines(void)
  77 {
  78         text("/* MIPS task_struct offsets. */");
  79         offset("#define TASK_STATE         ", struct task_struct, state);
  80         offset("#define TASK_THREAD_INFO   ", struct task_struct, thread_info);
  81         offset("#define TASK_FLAGS         ", struct task_struct, flags);
  82         offset("#define TASK_MM            ", struct task_struct, mm);
  83         offset("#define TASK_PID           ", struct task_struct, pid);
  84         size(  "#define TASK_STRUCT_SIZE   ", struct task_struct);
  85         linefeed;
  86 }
  87
  88 void output_thread_info_defines(void)
  89 {
  90         text("/* MIPS thread_info offsets. */");
  91         offset("#define TI_TASK            ", struct thread_info, task);
  92         offset("#define TI_EXEC_DOMAIN     ", struct thread_info, exec_domain);
  93         offset("#define TI_FLAGS           ", struct thread_info, flags);
  94         offset("#define TI_CPU             ", struct thread_info, cpu);
  95         offset("#define TI_PRE_COUNT       ", struct thread_info, preempt_count);
  96         offset("#define TI_ADDR_LIMIT      ", struct thread_info, addr_limit);
  97         offset("#define TI_RESTART_BLOCK   ", struct thread_info, restart_block);
  98         constant("#define _THREAD_SIZE_ORDER ", THREAD_SIZE_ORDER);
  99         constant("#define _THREAD_SIZE       ", THREAD_SIZE);
 100         constant("#define _THREAD_MASK       ", THREAD_MASK);
 101         linefeed;
 102 }
 103
 104 void output_thread_defines(void)
 105 {
 106         text("/* MIPS specific thread_struct offsets. */");
 107         offset("#define THREAD_REG16   ", struct task_struct, thread.reg16);
 108         offset("#define THREAD_REG17   ", struct task_struct, thread.reg17);
 109         offset("#define THREAD_REG18   ", struct task_struct, thread.reg18);
 110         offset("#define THREAD_REG19   ", struct task_struct, thread.reg19);
 111         offset("#define THREAD_REG20   ", struct task_struct, thread.reg20);
 112         offset("#define THREAD_REG21   ", struct task_struct, thread.reg21);
 113         offset("#define THREAD_REG22   ", struct task_struct, thread.reg22);
 114         offset("#define THREAD_REG23   ", struct task_struct, thread.reg23);
 115         offset("#define THREAD_REG29   ", struct task_struct, thread.reg29);
 116         offset("#define THREAD_REG30   ", struct task_struct, thread.reg30);
 117         offset("#define THREAD_REG31   ", struct task_struct, thread.reg31);
 118         offset("#define THREAD_STATUS  ", struct task_struct,
 119                thread.cp0_status);
 120         offset("#define THREAD_FPU     ", struct task_struct, thread.fpu);
 121
 122         offset("#define THREAD_BVADDR  ", struct task_struct, \
 123                thread.cp0_badvaddr);
 124         offset("#define THREAD_BUADDR  ", struct task_struct, \
 125                thread.cp0_baduaddr);
 126         offset("#define THREAD_ECODE   ", struct task_struct, \
 127                thread.error_code);
 128         offset("#define THREAD_TRAPNO  ", struct task_struct, thread.trap_no);
 129         offset("#define THREAD_MFLAGS  ", struct task_struct, thread.mflags);
 130         offset("#define THREAD_TRAMP   ", struct task_struct, \
 131                thread.irix_trampoline);
 132         offset("#define THREAD_OLDCTX  ", struct task_struct, \
 133                thread.irix_oldctx);
 134         linefeed;
 135 }
 136
 137 void output_thread_fpu_defines(void)
 138 {
 139         offset("#define THREAD_FPR0    ",
 140                struct task_struct, thread.fpu.hard.fpr[0]);
 141         offset("#define THREAD_FPR1    ",
 142                struct task_struct, thread.fpu.hard.fpr[1]);
 143         offset("#define THREAD_FPR2    ",
 144                struct task_struct, thread.fpu.hard.fpr[2]);
 145         offset("#define THREAD_FPR3    ",
 146                struct task_struct, thread.fpu.hard.fpr[3]);
 147         offset("#define THREAD_FPR4    ",
 148                struct task_struct, thread.fpu.hard.fpr[4]);
 149         offset("#define THREAD_FPR5    ",
 150                struct task_struct, thread.fpu.hard.fpr[5]);
 151         offset("#define THREAD_FPR6    ",
 152                struct task_struct, thread.fpu.hard.fpr[6]);
 153         offset("#define THREAD_FPR7    ",
 154                struct task_struct, thread.fpu.hard.fpr[7]);
 155         offset("#define THREAD_FPR8    ",
 156                struct task_struct, thread.fpu.hard.fpr[8]);
 157         offset("#define THREAD_FPR9    ",
 158                struct task_struct, thread.fpu.hard.fpr[9]);
 159         offset("#define THREAD_FPR10   ",
 160                struct task_struct, thread.fpu.hard.fpr[10]);
 161         offset("#define THREAD_FPR11   ",
 162                struct task_struct, thread.fpu.hard.fpr[11]);
 163         offset("#define THREAD_FPR12   ",
 164                struct task_struct, thread.fpu.hard.fpr[12]);
 165         offset("#define THREAD_FPR13   ",
 166                struct task_struct, thread.fpu.hard.fpr[13]);
 167         offset("#define THREAD_FPR14   ",
 168                struct task_struct, thread.fpu.hard.fpr[14]);
 169         offset("#define THREAD_FPR15   ",
 170                struct task_struct, thread.fpu.hard.fpr[15]);
 171         offset("#define THREAD_FPR16   ",
 172                struct task_struct, thread.fpu.hard.fpr[16]);
 173         offset("#define THREAD_FPR17   ",
 174                struct task_struct, thread.fpu.hard.fpr[17]);
 175         offset("#define THREAD_FPR18   ",
 176                struct task_struct, thread.fpu.hard.fpr[18]);
 177         offset("#define THREAD_FPR19   ",
 178                struct task_struct, thread.fpu.hard.fpr[19]);
 179         offset("#define THREAD_FPR20   ",
 180                struct task_struct, thread.fpu.hard.fpr[20]);
 181         offset("#define THREAD_FPR21   ",
 182                struct task_struct, thread.fpu.hard.fpr[21]);
 183         offset("#define THREAD_FPR22   ",
 184                struct task_struct, thread.fpu.hard.fpr[22]);
 185         offset("#define THREAD_FPR23   ",
 186                struct task_struct, thread.fpu.hard.fpr[23]);
 187         offset("#define THREAD_FPR24   ",
 188                struct task_struct, thread.fpu.hard.fpr[24]);
 189         offset("#define THREAD_FPR25   ",
 190                struct task_struct, thread.fpu.hard.fpr[25]);
 191         offset("#define THREAD_FPR26   ",
 192                struct task_struct, thread.fpu.hard.fpr[26]);
 193         offset("#define THREAD_FPR27   ",
 194                struct task_struct, thread.fpu.hard.fpr[27]);
 195         offset("#define THREAD_FPR28   ",
 196                struct task_struct, thread.fpu.hard.fpr[28]);
 197         offset("#define THREAD_FPR29   ",
 198                struct task_struct, thread.fpu.hard.fpr[29]);
 199         offset("#define THREAD_FPR30   ",
 200                struct task_struct, thread.fpu.hard.fpr[30]);
 201         offset("#define THREAD_FPR31   ",
 202                struct task_struct, thread.fpu.hard.fpr[31]);
 203
 204         offset("#define THREAD_FCR31   ",
 205                struct task_struct, thread.fpu.hard.fcr31);
 206         linefeed;
 207 }
 208
 209 void output_mm_defines(void)
 210 {
 211         text("/* Size of struct page  */");
 212         size("#define STRUCT_PAGE_SIZE   ", struct page);
 213         linefeed;
 214         text("/* Linux mm_struct offsets. */");
 215         offset("#define MM_USERS      ", struct mm_struct, mm_users);
 216         offset("#define MM_PGD        ", struct mm_struct, pgd);
 217         offset("#define MM_CONTEXT    ", struct mm_struct, context);
 218         linefeed;
 219         constant("#define _PAGE_SIZE     ", PAGE_SIZE);
 220         constant("#define _PAGE_SHIFT    ", PAGE_SHIFT);
 221         linefeed;
 222         constant("#define _PGD_T_SIZE    ", sizeof(pgd_t));
 223         constant("#define _PMD_T_SIZE    ", sizeof(pmd_t));
 224         constant("#define _PTE_T_SIZE    ", sizeof(pte_t));
 225         linefeed;
 226         constant("#define _PGD_T_LOG2    ", PGD_T_LOG2);
 227         constant("#define _PMD_T_LOG2    ", PMD_T_LOG2);
 228         constant("#define _PTE_T_LOG2    ", PTE_T_LOG2);
 229         linefeed;
 230         constant("#define _PMD_SHIFT     ", PMD_SHIFT);
 231         constant("#define _PGDIR_SHIFT   ", PGDIR_SHIFT);
 232         linefeed;
 233         constant("#define _PGD_ORDER     ", PGD_ORDER);
 234         constant("#define _PMD_ORDER     ", PMD_ORDER);
 235         constant("#define _PTE_ORDER     ", PTE_ORDER);
 236         linefeed;
 237         constant("#define _PTRS_PER_PGD  ", PTRS_PER_PGD);
 238         constant("#define _PTRS_PER_PMD  ", PTRS_PER_PMD);
 239         constant("#define _PTRS_PER_PTE  ", PTRS_PER_PTE);
 240         linefeed;
 241 }
 242
 243 void output_sc_defines(void)
 244 {
 245         text("/* Linux sigcontext offsets. */");
 246         offset("#define SC_REGS       ", struct sigcontext, sc_regs);
 247         offset("#define SC_FPREGS     ", struct sigcontext, sc_fpregs);
 248         offset("#define SC_MDHI       ", struct sigcontext, sc_mdhi);
 249         offset("#define SC_MDLO       ", struct sigcontext, sc_mdlo);
 250         offset("#define SC_PC         ", struct sigcontext, sc_pc);
 251         offset("#define SC_STATUS     ", struct sigcontext, sc_status);
 252         offset("#define SC_FPC_CSR    ", struct sigcontext, sc_fpc_csr);
 253         offset("#define SC_FPC_EIR    ", struct sigcontext, sc_fpc_eir);
 254         offset("#define SC_CAUSE      ", struct sigcontext, sc_cause);
 255         offset("#define SC_BADVADDR   ", struct sigcontext, sc_badvaddr);
 256         linefeed;
 257 }
 258
 259 #ifdef CONFIG_MIPS32_COMPAT
 260 void output_sc32_defines(void)
 261 {
 262         text("/* Linux 32-bit sigcontext offsets. */");
 263         offset("#define SC32_FPREGS     ", struct sigcontext32, sc_fpregs);
 264         offset("#define SC32_FPC_CSR    ", struct sigcontext32, sc_fpc_csr);
 265         offset("#define SC32_FPC_EIR    ", struct sigcontext32, sc_fpc_eir);
 266         linefeed;
 267 }
 268 #endif
 269
 270 void output_signal_defined(void)
 271 {
 272         text("/* Linux signal numbers. */");
 273         constant("#define _SIGHUP     ", SIGHUP);
 274         constant("#define _SIGINT     ", SIGINT);
 275         constant("#define _SIGQUIT    ", SIGQUIT);
 276         constant("#define _SIGILL     ", SIGILL);
 277         constant("#define _SIGTRAP    ", SIGTRAP);
 278         constant("#define _SIGIOT     ", SIGIOT);
 279         constant("#define _SIGABRT    ", SIGABRT);
 280         constant("#define _SIGEMT     ", SIGEMT);
 281         constant("#define _SIGFPE     ", SIGFPE);
 282         constant("#define _SIGKILL    ", SIGKILL);
 283         constant("#define _SIGBUS     ", SIGBUS);
 284         constant("#define _SIGSEGV    ", SIGSEGV);
 285         constant("#define _SIGSYS     ", SIGSYS);
 286         constant("#define _SIGPIPE    ", SIGPIPE);
 287         constant("#define _SIGALRM    ", SIGALRM);
 288         constant("#define _SIGTERM    ", SIGTERM);
 289         constant("#define _SIGUSR1    ", SIGUSR1);
 290         constant("#define _SIGUSR2    ", SIGUSR2);
 291         constant("#define _SIGCHLD    ", SIGCHLD);
 292         constant("#define _SIGPWR     ", SIGPWR);
 293         constant("#define _SIGWINCH   ", SIGWINCH);
 294         constant("#define _SIGURG     ", SIGURG);
 295         constant("#define _SIGIO      ", SIGIO);
 296         constant("#define _SIGSTOP    ", SIGSTOP);
 297         constant("#define _SIGTSTP    ", SIGTSTP);
 298         constant("#define _SIGCONT    ", SIGCONT);
 299         constant("#define _SIGTTIN    ", SIGTTIN);
 300         constant("#define _SIGTTOU    ", SIGTTOU);
 301         constant("#define _SIGVTALRM  ", SIGVTALRM);
 302         constant("#define _SIGPROF    ", SIGPROF);
 303         constant("#define _SIGXCPU    ", SIGXCPU);
 304         constant("#define _SIGXFSZ    ", SIGXFSZ);
 305         linefeed;
 306 }
 307
 308 void output_irq_cpustat_t_defines(void)
 309 {
 310         text("/* Linux irq_cpustat_t offsets. */");
 311         offset("#define IC_SOFTIRQ_PENDING ", irq_cpustat_t, __softirq_pending);
 312         size("#define IC_IRQ_CPUSTAT_T   ", irq_cpustat_t);
 313         linefeed;
 314 }