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-rw-r--r--arch/arm/mm/fault.c75
1 files changed, 40 insertions, 35 deletions
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index e25b4fd8412c..65bfe84b6d67 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -372,49 +372,50 @@ do_bad(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
372static struct fsr_info { 372static struct fsr_info {
373 int (*fn)(unsigned long addr, unsigned int fsr, struct pt_regs *regs); 373 int (*fn)(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
374 int sig; 374 int sig;
375 int code;
375 const char *name; 376 const char *name;
376} fsr_info[] = { 377} fsr_info[] = {
377 /* 378 /*
378 * The following are the standard ARMv3 and ARMv4 aborts. ARMv5 379 * The following are the standard ARMv3 and ARMv4 aborts. ARMv5
379 * defines these to be "precise" aborts. 380 * defines these to be "precise" aborts.
380 */ 381 */
381 { do_bad, SIGSEGV, "vector exception" }, 382 { do_bad, SIGSEGV, 0, "vector exception" },
382 { do_bad, SIGILL, "alignment exception" }, 383 { do_bad, SIGILL, BUS_ADRALN, "alignment exception" },
383 { do_bad, SIGKILL, "terminal exception" }, 384 { do_bad, SIGKILL, 0, "terminal exception" },
384 { do_bad, SIGILL, "alignment exception" }, 385 { do_bad, SIGILL, BUS_ADRALN, "alignment exception" },
385 { do_bad, SIGBUS, "external abort on linefetch" }, 386 { do_bad, SIGBUS, 0, "external abort on linefetch" },
386 { do_translation_fault, SIGSEGV, "section translation fault" }, 387 { do_translation_fault, SIGSEGV, SEGV_MAPERR, "section translation fault" },
387 { do_bad, SIGBUS, "external abort on linefetch" }, 388 { do_bad, SIGBUS, 0, "external abort on linefetch" },
388 { do_page_fault, SIGSEGV, "page translation fault" }, 389 { do_page_fault, SIGSEGV, SEGV_MAPERR, "page translation fault" },
389 { do_bad, SIGBUS, "external abort on non-linefetch" }, 390 { do_bad, SIGBUS, 0, "external abort on non-linefetch" },
390 { do_bad, SIGSEGV, "section domain fault" }, 391 { do_bad, SIGSEGV, SEGV_ACCERR, "section domain fault" },
391 { do_bad, SIGBUS, "external abort on non-linefetch" }, 392 { do_bad, SIGBUS, 0, "external abort on non-linefetch" },
392 { do_bad, SIGSEGV, "page domain fault" }, 393 { do_bad, SIGSEGV, SEGV_ACCERR, "page domain fault" },
393 { do_bad, SIGBUS, "external abort on translation" }, 394 { do_bad, SIGBUS, 0, "external abort on translation" },
394 { do_sect_fault, SIGSEGV, "section permission fault" }, 395 { do_sect_fault, SIGSEGV, SEGV_ACCERR, "section permission fault" },
395 { do_bad, SIGBUS, "external abort on translation" }, 396 { do_bad, SIGBUS, 0, "external abort on translation" },
396 { do_page_fault, SIGSEGV, "page permission fault" }, 397 { do_page_fault, SIGSEGV, SEGV_ACCERR, "page permission fault" },
397 /* 398 /*
398 * The following are "imprecise" aborts, which are signalled by bit 399 * The following are "imprecise" aborts, which are signalled by bit
399 * 10 of the FSR, and may not be recoverable. These are only 400 * 10 of the FSR, and may not be recoverable. These are only
400 * supported if the CPU abort handler supports bit 10. 401 * supported if the CPU abort handler supports bit 10.
401 */ 402 */
402 { do_bad, SIGBUS, "unknown 16" }, 403 { do_bad, SIGBUS, 0, "unknown 16" },
403 { do_bad, SIGBUS, "unknown 17" }, 404 { do_bad, SIGBUS, 0, "unknown 17" },
404 { do_bad, SIGBUS, "unknown 18" }, 405 { do_bad, SIGBUS, 0, "unknown 18" },
405 { do_bad, SIGBUS, "unknown 19" }, 406 { do_bad, SIGBUS, 0, "unknown 19" },
406 { do_bad, SIGBUS, "lock abort" }, /* xscale */ 407 { do_bad, SIGBUS, 0, "lock abort" }, /* xscale */
407 { do_bad, SIGBUS, "unknown 21" }, 408 { do_bad, SIGBUS, 0, "unknown 21" },
408 { do_bad, SIGBUS, "imprecise external abort" }, /* xscale */ 409 { do_bad, SIGBUS, BUS_OBJERR, "imprecise external abort" }, /* xscale */
409 { do_bad, SIGBUS, "unknown 23" }, 410 { do_bad, SIGBUS, 0, "unknown 23" },
410 { do_bad, SIGBUS, "dcache parity error" }, /* xscale */ 411 { do_bad, SIGBUS, 0, "dcache parity error" }, /* xscale */
411 { do_bad, SIGBUS, "unknown 25" }, 412 { do_bad, SIGBUS, 0, "unknown 25" },
412 { do_bad, SIGBUS, "unknown 26" }, 413 { do_bad, SIGBUS, 0, "unknown 26" },
413 { do_bad, SIGBUS, "unknown 27" }, 414 { do_bad, SIGBUS, 0, "unknown 27" },
414 { do_bad, SIGBUS, "unknown 28" }, 415 { do_bad, SIGBUS, 0, "unknown 28" },
415 { do_bad, SIGBUS, "unknown 29" }, 416 { do_bad, SIGBUS, 0, "unknown 29" },
416 { do_bad, SIGBUS, "unknown 30" }, 417 { do_bad, SIGBUS, 0, "unknown 30" },
417 { do_bad, SIGBUS, "unknown 31" } 418 { do_bad, SIGBUS, 0, "unknown 31" }
418}; 419};
419 420
420void __init 421void __init
@@ -435,15 +436,19 @@ asmlinkage void
435do_DataAbort(unsigned long addr, unsigned int fsr, struct pt_regs *regs) 436do_DataAbort(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
436{ 437{
437 const struct fsr_info *inf = fsr_info + (fsr & 15) + ((fsr & (1 << 10)) >> 6); 438 const struct fsr_info *inf = fsr_info + (fsr & 15) + ((fsr & (1 << 10)) >> 6);
439 struct siginfo info;
438 440
439 if (!inf->fn(addr, fsr, regs)) 441 if (!inf->fn(addr, fsr, regs))
440 return; 442 return;
441 443
442 printk(KERN_ALERT "Unhandled fault: %s (0x%03x) at 0x%08lx\n", 444 printk(KERN_ALERT "Unhandled fault: %s (0x%03x) at 0x%08lx\n",
443 inf->name, fsr, addr); 445 inf->name, fsr, addr);
444 force_sig(inf->sig, current); 446
445 show_pte(current->mm, addr); 447 info.si_signo = inf->sig;
446 die_if_kernel("Oops", regs, 0); 448 info.si_errno = 0;
449 info.si_code = inf->code;
450 info.si_addr = (void __user *)addr;
451 notify_die("", regs, &info, fsr, 0);
447} 452}
448 453
449asmlinkage void 454asmlinkage void
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