Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/arch/arm26/kernel/traps.c |
| 3 | * |
| 4 | * Copyright (C) 1995-2002 Russell King |
| 5 | * Fragments that appear the same as linux/arch/i386/kernel/traps.c (C) Linus Torvalds |
| 6 | * Copyright (C) 2003 Ian Molton (ARM26) |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | * |
| 12 | * 'traps.c' handles hardware exceptions after we have saved some state in |
| 13 | * 'linux/arch/arm26/lib/traps.S'. Mostly a debugging aid, but will probably |
| 14 | * kill the offending process. |
| 15 | */ |
| 16 | |
| 17 | #include <linux/module.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #include <linux/types.h> |
| 19 | #include <linux/kernel.h> |
| 20 | #include <linux/signal.h> |
| 21 | #include <linux/sched.h> |
| 22 | #include <linux/mm.h> |
| 23 | #include <linux/spinlock.h> |
| 24 | #include <linux/personality.h> |
| 25 | #include <linux/ptrace.h> |
| 26 | #include <linux/elf.h> |
| 27 | #include <linux/interrupt.h> |
| 28 | #include <linux/init.h> |
| 29 | |
| 30 | #include <asm/atomic.h> |
| 31 | #include <asm/io.h> |
| 32 | #include <asm/pgtable.h> |
| 33 | #include <asm/system.h> |
| 34 | #include <asm/uaccess.h> |
| 35 | #include <asm/unistd.h> |
Ingo Molnar | 14cc3e2 | 2006-03-26 01:37:14 -0800 | [diff] [blame] | 36 | #include <linux/mutex.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | |
| 38 | #include "ptrace.h" |
| 39 | |
| 40 | extern void c_backtrace (unsigned long fp, int pmode); |
| 41 | extern void show_pte(struct mm_struct *mm, unsigned long addr); |
| 42 | |
| 43 | const char *processor_modes[] = { "USER_26", "FIQ_26" , "IRQ_26" , "SVC_26" }; |
| 44 | |
| 45 | static const char *handler[]= { "prefetch abort", "data abort", "address exception", "interrupt" "*bad reason*"}; |
| 46 | |
| 47 | /* |
| 48 | * Stack pointers should always be within the kernels view of |
| 49 | * physical memory. If it is not there, then we can't dump |
| 50 | * out any information relating to the stack. |
| 51 | */ |
| 52 | static int verify_stack(unsigned long sp) |
| 53 | { |
| 54 | if (sp < PAGE_OFFSET || (sp > (unsigned long)high_memory && high_memory != 0)) |
| 55 | return -EFAULT; |
| 56 | |
| 57 | return 0; |
| 58 | } |
| 59 | |
| 60 | /* |
| 61 | * Dump out the contents of some memory nicely... |
| 62 | */ |
| 63 | static void dump_mem(const char *str, unsigned long bottom, unsigned long top) |
| 64 | { |
| 65 | unsigned long p = bottom & ~31; |
| 66 | mm_segment_t fs; |
| 67 | int i; |
| 68 | |
| 69 | /* |
| 70 | * We need to switch to kernel mode so that we can use __get_user |
| 71 | * to safely read from kernel space. Note that we now dump the |
| 72 | * code first, just in case the backtrace kills us. |
| 73 | */ |
| 74 | fs = get_fs(); |
| 75 | set_fs(KERNEL_DS); |
| 76 | |
| 77 | printk("%s", str); |
| 78 | printk("(0x%08lx to 0x%08lx)\n", bottom, top); |
| 79 | |
| 80 | for (p = bottom & ~31; p < top;) { |
| 81 | printk("%04lx: ", p & 0xffff); |
| 82 | |
| 83 | for (i = 0; i < 8; i++, p += 4) { |
| 84 | unsigned int val; |
| 85 | |
| 86 | if (p < bottom || p >= top) |
| 87 | printk(" "); |
| 88 | else { |
| 89 | __get_user(val, (unsigned long *)p); |
| 90 | printk("%08x ", val); |
| 91 | } |
| 92 | } |
| 93 | printk ("\n"); |
| 94 | } |
| 95 | |
| 96 | set_fs(fs); |
| 97 | } |
| 98 | |
| 99 | static void dump_instr(struct pt_regs *regs) |
| 100 | { |
| 101 | unsigned long addr = instruction_pointer(regs); |
| 102 | const int width = 8; |
| 103 | mm_segment_t fs; |
| 104 | int i; |
| 105 | |
| 106 | /* |
| 107 | * We need to switch to kernel mode so that we can use __get_user |
| 108 | * to safely read from kernel space. Note that we now dump the |
| 109 | * code first, just in case the backtrace kills us. |
| 110 | */ |
| 111 | fs = get_fs(); |
| 112 | set_fs(KERNEL_DS); |
| 113 | |
| 114 | printk("Code: "); |
| 115 | for (i = -4; i < 1; i++) { |
| 116 | unsigned int val, bad; |
| 117 | |
| 118 | bad = __get_user(val, &((u32 *)addr)[i]); |
| 119 | |
| 120 | if (!bad) |
| 121 | printk(i == 0 ? "(%0*x) " : "%0*x ", width, val); |
| 122 | else { |
| 123 | printk("bad PC value."); |
| 124 | break; |
| 125 | } |
| 126 | } |
| 127 | printk("\n"); |
| 128 | |
| 129 | set_fs(fs); |
| 130 | } |
| 131 | |
| 132 | /*static*/ void __dump_stack(struct task_struct *tsk, unsigned long sp) |
| 133 | { |
Al Viro | 7fdf0d7 | 2006-01-12 01:06:00 -0800 | [diff] [blame] | 134 | dump_mem("Stack: ", sp, 8192+(unsigned long)task_stack_page(tsk)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | } |
| 136 | |
| 137 | void dump_stack(void) |
| 138 | { |
| 139 | #ifdef CONFIG_DEBUG_ERRORS |
| 140 | __backtrace(); |
| 141 | #endif |
| 142 | } |
| 143 | |
| 144 | EXPORT_SYMBOL(dump_stack); |
| 145 | |
| 146 | //FIXME - was a static fn |
| 147 | void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk) |
| 148 | { |
| 149 | unsigned int fp; |
| 150 | int ok = 1; |
| 151 | |
| 152 | printk("Backtrace: "); |
| 153 | fp = regs->ARM_fp; |
| 154 | if (!fp) { |
| 155 | printk("no frame pointer"); |
| 156 | ok = 0; |
| 157 | } else if (verify_stack(fp)) { |
| 158 | printk("invalid frame pointer 0x%08x", fp); |
| 159 | ok = 0; |
Al Viro | 7fdf0d7 | 2006-01-12 01:06:00 -0800 | [diff] [blame] | 160 | } else if (fp < (unsigned long)end_of_stack(tsk)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | printk("frame pointer underflow"); |
| 162 | printk("\n"); |
| 163 | |
| 164 | if (ok) |
| 165 | c_backtrace(fp, processor_mode(regs)); |
| 166 | } |
| 167 | |
| 168 | /* FIXME - this is probably wrong.. */ |
| 169 | void show_stack(struct task_struct *task, unsigned long *sp) { |
Al Viro | 7fdf0d7 | 2006-01-12 01:06:00 -0800 | [diff] [blame] | 170 | dump_mem("Stack: ", (unsigned long)sp, 8192+(unsigned long)task_stack_page(task)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | } |
| 172 | |
| 173 | DEFINE_SPINLOCK(die_lock); |
| 174 | |
| 175 | /* |
| 176 | * This function is protected against re-entrancy. |
| 177 | */ |
| 178 | NORET_TYPE void die(const char *str, struct pt_regs *regs, int err) |
| 179 | { |
| 180 | struct task_struct *tsk = current; |
| 181 | |
| 182 | console_verbose(); |
| 183 | spin_lock_irq(&die_lock); |
| 184 | |
| 185 | printk("Internal error: %s: %x\n", str, err); |
| 186 | printk("CPU: %d\n", smp_processor_id()); |
| 187 | show_regs(regs); |
| 188 | printk("Process %s (pid: %d, stack limit = 0x%p)\n", |
Al Viro | 7fdf0d7 | 2006-01-12 01:06:00 -0800 | [diff] [blame] | 189 | current->comm, current->pid, end_of_stack(tsk)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | |
| 191 | if (!user_mode(regs) || in_interrupt()) { |
| 192 | __dump_stack(tsk, (unsigned long)(regs + 1)); |
| 193 | dump_backtrace(regs, tsk); |
| 194 | dump_instr(regs); |
| 195 | } |
| 196 | while(1); |
| 197 | spin_unlock_irq(&die_lock); |
| 198 | do_exit(SIGSEGV); |
| 199 | } |
| 200 | |
| 201 | void die_if_kernel(const char *str, struct pt_regs *regs, int err) |
| 202 | { |
| 203 | if (user_mode(regs)) |
| 204 | return; |
| 205 | |
| 206 | die(str, regs, err); |
| 207 | } |
| 208 | |
Ingo Molnar | 14cc3e2 | 2006-03-26 01:37:14 -0800 | [diff] [blame] | 209 | static DEFINE_MUTEX(undef_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | static int (*undef_hook)(struct pt_regs *); |
| 211 | |
| 212 | int request_undef_hook(int (*fn)(struct pt_regs *)) |
| 213 | { |
| 214 | int ret = -EBUSY; |
| 215 | |
Ingo Molnar | 14cc3e2 | 2006-03-26 01:37:14 -0800 | [diff] [blame] | 216 | mutex_lock(&undef_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | if (undef_hook == NULL) { |
| 218 | undef_hook = fn; |
| 219 | ret = 0; |
| 220 | } |
Ingo Molnar | 14cc3e2 | 2006-03-26 01:37:14 -0800 | [diff] [blame] | 221 | mutex_unlock(&undef_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | |
| 223 | return ret; |
| 224 | } |
| 225 | |
| 226 | int release_undef_hook(int (*fn)(struct pt_regs *)) |
| 227 | { |
| 228 | int ret = -EINVAL; |
| 229 | |
Ingo Molnar | 14cc3e2 | 2006-03-26 01:37:14 -0800 | [diff] [blame] | 230 | mutex_lock(&undef_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | if (undef_hook == fn) { |
| 232 | undef_hook = NULL; |
| 233 | ret = 0; |
| 234 | } |
Ingo Molnar | 14cc3e2 | 2006-03-26 01:37:14 -0800 | [diff] [blame] | 235 | mutex_unlock(&undef_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | |
| 237 | return ret; |
| 238 | } |
| 239 | |
| 240 | static int undefined_extension(struct pt_regs *regs, unsigned int op) |
| 241 | { |
| 242 | switch (op) { |
| 243 | case 1: /* 0xde01 / 0x?7f001f0 */ |
| 244 | ptrace_break(current, regs); |
| 245 | return 0; |
| 246 | } |
| 247 | return 1; |
| 248 | } |
| 249 | |
| 250 | asmlinkage void do_undefinstr(struct pt_regs *regs) |
| 251 | { |
| 252 | siginfo_t info; |
| 253 | void *pc; |
| 254 | |
| 255 | regs->ARM_pc -= 4; |
| 256 | |
| 257 | pc = (unsigned long *)instruction_pointer(regs); /* strip PSR */ |
| 258 | |
| 259 | if (user_mode(regs)) { |
| 260 | u32 instr; |
| 261 | |
| 262 | get_user(instr, (u32 *)pc); |
| 263 | |
| 264 | if ((instr & 0x0fff00ff) == 0x07f000f0 && |
| 265 | undefined_extension(regs, (instr >> 8) & 255) == 0) { |
| 266 | regs->ARM_pc += 4; |
| 267 | return; |
| 268 | } |
| 269 | } else { |
| 270 | if (undef_hook && undef_hook(regs) == 0) { |
| 271 | regs->ARM_pc += 4; |
| 272 | return; |
| 273 | } |
| 274 | } |
| 275 | |
| 276 | #ifdef CONFIG_DEBUG_USER |
| 277 | printk(KERN_INFO "%s (%d): undefined instruction: pc=%p\n", |
| 278 | current->comm, current->pid, pc); |
| 279 | dump_instr(regs); |
| 280 | #endif |
| 281 | |
| 282 | current->thread.error_code = 0; |
| 283 | current->thread.trap_no = 6; |
| 284 | |
| 285 | info.si_signo = SIGILL; |
| 286 | info.si_errno = 0; |
| 287 | info.si_code = ILL_ILLOPC; |
| 288 | info.si_addr = pc; |
| 289 | |
| 290 | force_sig_info(SIGILL, &info, current); |
| 291 | |
| 292 | die_if_kernel("Oops - undefined instruction", regs, 0); |
| 293 | } |
| 294 | |
| 295 | asmlinkage void do_excpt(unsigned long address, struct pt_regs *regs, int mode) |
| 296 | { |
| 297 | siginfo_t info; |
| 298 | |
| 299 | #ifdef CONFIG_DEBUG_USER |
| 300 | printk(KERN_INFO "%s (%d): address exception: pc=%08lx\n", |
| 301 | current->comm, current->pid, instruction_pointer(regs)); |
| 302 | dump_instr(regs); |
| 303 | #endif |
| 304 | |
| 305 | current->thread.error_code = 0; |
| 306 | current->thread.trap_no = 11; |
| 307 | |
| 308 | info.si_signo = SIGBUS; |
| 309 | info.si_errno = 0; |
| 310 | info.si_code = BUS_ADRERR; |
| 311 | info.si_addr = (void *)address; |
| 312 | |
| 313 | force_sig_info(SIGBUS, &info, current); |
| 314 | |
| 315 | die_if_kernel("Oops - address exception", regs, mode); |
| 316 | } |
| 317 | |
| 318 | asmlinkage void do_unexp_fiq (struct pt_regs *regs) |
| 319 | { |
| 320 | #ifndef CONFIG_IGNORE_FIQ |
| 321 | printk("Hmm. Unexpected FIQ received, but trying to continue\n"); |
| 322 | printk("You may have a hardware problem...\n"); |
| 323 | #endif |
| 324 | } |
| 325 | |
| 326 | /* |
| 327 | * bad_mode handles the impossible case in the vectors. If you see one of |
| 328 | * these, then it's extremely serious, and could mean you have buggy hardware. |
| 329 | * It never returns, and never tries to sync. We hope that we can at least |
| 330 | * dump out some state information... |
| 331 | */ |
| 332 | asmlinkage void bad_mode(struct pt_regs *regs, int reason, int proc_mode) |
| 333 | { |
| 334 | unsigned int vectors = vectors_base(); |
| 335 | |
| 336 | console_verbose(); |
| 337 | |
| 338 | printk(KERN_CRIT "Bad mode in %s handler detected: mode %s\n", |
| 339 | handler[reason<5?reason:4], processor_modes[proc_mode]); |
| 340 | |
| 341 | /* |
| 342 | * Dump out the vectors and stub routines. Maybe a better solution |
| 343 | * would be to dump them out only if we detect that they are corrupted. |
| 344 | */ |
| 345 | dump_mem(KERN_CRIT "Vectors: ", vectors, vectors + 0x40); |
| 346 | dump_mem(KERN_CRIT "Stubs: ", vectors + 0x200, vectors + 0x4b8); |
| 347 | |
| 348 | die("Oops", regs, 0); |
| 349 | local_irq_disable(); |
| 350 | panic("bad mode"); |
| 351 | } |
| 352 | |
| 353 | static int bad_syscall(int n, struct pt_regs *regs) |
| 354 | { |
| 355 | struct thread_info *thread = current_thread_info(); |
| 356 | siginfo_t info; |
| 357 | |
| 358 | if (current->personality != PER_LINUX && thread->exec_domain->handler) { |
| 359 | thread->exec_domain->handler(n, regs); |
| 360 | return regs->ARM_r0; |
| 361 | } |
| 362 | |
| 363 | #ifdef CONFIG_DEBUG_USER |
| 364 | printk(KERN_ERR "[%d] %s: obsolete system call %08x.\n", |
| 365 | current->pid, current->comm, n); |
| 366 | dump_instr(regs); |
| 367 | #endif |
| 368 | |
| 369 | info.si_signo = SIGILL; |
| 370 | info.si_errno = 0; |
| 371 | info.si_code = ILL_ILLTRP; |
| 372 | info.si_addr = (void *)instruction_pointer(regs) - 4; |
| 373 | |
| 374 | force_sig_info(SIGILL, &info, current); |
| 375 | die_if_kernel("Oops", regs, n); |
| 376 | return regs->ARM_r0; |
| 377 | } |
| 378 | |
| 379 | static inline void |
| 380 | do_cache_op(unsigned long start, unsigned long end, int flags) |
| 381 | { |
| 382 | struct vm_area_struct *vma; |
| 383 | |
| 384 | if (end < start) |
| 385 | return; |
| 386 | |
| 387 | vma = find_vma(current->active_mm, start); |
| 388 | if (vma && vma->vm_start < end) { |
| 389 | if (start < vma->vm_start) |
| 390 | start = vma->vm_start; |
| 391 | if (end > vma->vm_end) |
| 392 | end = vma->vm_end; |
| 393 | } |
| 394 | } |
| 395 | |
| 396 | /* |
| 397 | * Handle all unrecognised system calls. |
| 398 | * 0x9f0000 - 0x9fffff are some more esoteric system calls |
| 399 | */ |
| 400 | #define NR(x) ((__ARM_NR_##x) - __ARM_NR_BASE) |
| 401 | asmlinkage int arm_syscall(int no, struct pt_regs *regs) |
| 402 | { |
| 403 | siginfo_t info; |
| 404 | |
| 405 | if ((no >> 16) != 0x9f) |
| 406 | return bad_syscall(no, regs); |
| 407 | |
| 408 | switch (no & 0xffff) { |
| 409 | case 0: /* branch through 0 */ |
| 410 | info.si_signo = SIGSEGV; |
| 411 | info.si_errno = 0; |
| 412 | info.si_code = SEGV_MAPERR; |
| 413 | info.si_addr = NULL; |
| 414 | |
| 415 | force_sig_info(SIGSEGV, &info, current); |
| 416 | |
| 417 | die_if_kernel("branch through zero", regs, 0); |
| 418 | return 0; |
| 419 | |
| 420 | case NR(breakpoint): /* SWI BREAK_POINT */ |
| 421 | ptrace_break(current, regs); |
| 422 | return regs->ARM_r0; |
| 423 | |
| 424 | case NR(cacheflush): |
| 425 | return 0; |
| 426 | |
| 427 | case NR(usr26): |
| 428 | break; |
| 429 | |
| 430 | default: |
| 431 | /* Calls 9f00xx..9f07ff are defined to return -ENOSYS |
| 432 | if not implemented, rather than raising SIGILL. This |
| 433 | way the calling program can gracefully determine whether |
| 434 | a feature is supported. */ |
| 435 | if (no <= 0x7ff) |
| 436 | return -ENOSYS; |
| 437 | break; |
| 438 | } |
| 439 | #ifdef CONFIG_DEBUG_USER |
| 440 | /* |
| 441 | * experience shows that these seem to indicate that |
| 442 | * something catastrophic has happened |
| 443 | */ |
| 444 | printk("[%d] %s: arm syscall %d\n", current->pid, current->comm, no); |
| 445 | dump_instr(regs); |
| 446 | if (user_mode(regs)) { |
| 447 | show_regs(regs); |
| 448 | c_backtrace(regs->ARM_fp, processor_mode(regs)); |
| 449 | } |
| 450 | #endif |
| 451 | info.si_signo = SIGILL; |
| 452 | info.si_errno = 0; |
| 453 | info.si_code = ILL_ILLTRP; |
| 454 | info.si_addr = (void *)instruction_pointer(regs) - 4; |
| 455 | |
| 456 | force_sig_info(SIGILL, &info, current); |
| 457 | die_if_kernel("Oops", regs, no); |
| 458 | return 0; |
| 459 | } |
| 460 | |
| 461 | void __bad_xchg(volatile void *ptr, int size) |
| 462 | { |
| 463 | printk("xchg: bad data size: pc 0x%p, ptr 0x%p, size %d\n", |
| 464 | __builtin_return_address(0), ptr, size); |
| 465 | BUG(); |
| 466 | } |
| 467 | |
| 468 | /* |
| 469 | * A data abort trap was taken, but we did not handle the instruction. |
| 470 | * Try to abort the user program, or panic if it was the kernel. |
| 471 | */ |
| 472 | asmlinkage void |
| 473 | baddataabort(int code, unsigned long instr, struct pt_regs *regs) |
| 474 | { |
| 475 | unsigned long addr = instruction_pointer(regs); |
| 476 | siginfo_t info; |
| 477 | |
| 478 | #ifdef CONFIG_DEBUG_USER |
| 479 | printk(KERN_ERR "[%d] %s: bad data abort: code %d instr 0x%08lx\n", |
| 480 | current->pid, current->comm, code, instr); |
| 481 | dump_instr(regs); |
| 482 | show_pte(current->mm, addr); |
| 483 | #endif |
| 484 | |
| 485 | info.si_signo = SIGILL; |
| 486 | info.si_errno = 0; |
| 487 | info.si_code = ILL_ILLOPC; |
| 488 | info.si_addr = (void *)addr; |
| 489 | |
| 490 | force_sig_info(SIGILL, &info, current); |
| 491 | die_if_kernel("unknown data abort code", regs, instr); |
| 492 | } |
| 493 | |
| 494 | volatile void __bug(const char *file, int line, void *data) |
| 495 | { |
| 496 | printk(KERN_CRIT"kernel BUG at %s:%d!", file, line); |
| 497 | if (data) |
| 498 | printk(KERN_CRIT" - extra data = %p", data); |
| 499 | printk("\n"); |
| 500 | *(int *)0 = 0; |
| 501 | } |
| 502 | |
| 503 | void __readwrite_bug(const char *fn) |
| 504 | { |
| 505 | printk("%s called, but not implemented", fn); |
| 506 | BUG(); |
| 507 | } |
| 508 | |
| 509 | void __pte_error(const char *file, int line, unsigned long val) |
| 510 | { |
| 511 | printk("%s:%d: bad pte %08lx.\n", file, line, val); |
| 512 | } |
| 513 | |
| 514 | void __pmd_error(const char *file, int line, unsigned long val) |
| 515 | { |
| 516 | printk("%s:%d: bad pmd %08lx.\n", file, line, val); |
| 517 | } |
| 518 | |
| 519 | void __pgd_error(const char *file, int line, unsigned long val) |
| 520 | { |
| 521 | printk("%s:%d: bad pgd %08lx.\n", file, line, val); |
| 522 | } |
| 523 | |
| 524 | asmlinkage void __div0(void) |
| 525 | { |
| 526 | printk("Division by zero in kernel.\n"); |
| 527 | dump_stack(); |
| 528 | } |
| 529 | |
| 530 | void abort(void) |
| 531 | { |
| 532 | BUG(); |
| 533 | |
| 534 | /* if that doesn't kill us, halt */ |
| 535 | panic("Oops failed to kill thread"); |
| 536 | } |
| 537 | |
| 538 | void __init trap_init(void) |
| 539 | { |
| 540 | extern void __trap_init(unsigned long); |
| 541 | unsigned long base = vectors_base(); |
| 542 | |
| 543 | __trap_init(base); |
| 544 | if (base != 0) |
| 545 | printk(KERN_DEBUG "Relocating machine vectors to 0x%08lx\n", |
| 546 | base); |
| 547 | } |