45 void show_pte(struct mm_struct *mm, unsigned long addr)  in show_pte()  argument
53 	pgd = pgd_offset(mm, addr);  in show_pte()
54 	pr_alert("[%08lx] *pgd=%016llx", addr, pgd_val(*pgd));  in show_pte()
64 		pud = pud_offset(pgd, addr);  in show_pte()
69 		pmd = pmd_offset(pud, addr);  in show_pte()
74 		pte = pte_offset_map(pmd, addr);  in show_pte()
85 static void __do_kernel_fault(struct mm_struct *mm, unsigned long addr,  in __do_kernel_fault()  argument
99 		 (addr < PAGE_SIZE) ? "NULL pointer dereference" :  in __do_kernel_fault()
100 		 "paging request", addr);  in __do_kernel_fault()
102 	show_pte(mm, addr);  in __do_kernel_fault()
112 static void __do_user_fault(struct task_struct *tsk, unsigned long addr,  in __do_user_fault()  argument
122 			addr, esr);  in __do_user_fault()
123 		show_pte(tsk->mm, addr);  in __do_user_fault()
127 	tsk->thread.fault_address = addr;  in __do_user_fault()
132 	si.si_addr = (void __user *)addr;  in __do_user_fault()
136 static void do_bad_area(unsigned long addr, unsigned int esr, struct pt_regs *regs)  in do_bad_area()  argument
146 		__do_user_fault(tsk, addr, esr, SIGSEGV, SEGV_MAPERR, regs);  in do_bad_area()
148 		__do_kernel_fault(mm, addr, esr, regs);  in do_bad_area()
156 static int __do_page_fault(struct mm_struct *mm, unsigned long addr,  in __do_page_fault()  argument
163 	vma = find_vma(mm, addr);  in __do_page_fault()
167 	if (unlikely(vma->vm_start > addr))  in __do_page_fault()
185 	return handle_mm_fault(mm, vma, addr & PAGE_MASK, mm_flags);  in __do_page_fault()
188 	if (vma->vm_flags & VM_GROWSDOWN && !expand_stack(vma, addr))  in __do_page_fault()
194 static int __kprobes do_page_fault(unsigned long addr, unsigned int esr,  in do_page_fault()  argument
249 	fault = __do_page_fault(mm, addr, mm_flags, vm_flags, tsk);  in do_page_fault()
265 	perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, addr);  in do_page_fault()
270 				      addr);  in do_page_fault()
274 				      addr);  in do_page_fault()
330 	__do_user_fault(tsk, addr, esr, sig, code, regs);  in do_page_fault()
334 	__do_kernel_fault(mm, addr, esr, regs);  in do_page_fault()
355 static int __kprobes do_translation_fault(unsigned long addr,  in do_translation_fault()  argument
359 	if (addr < TASK_SIZE)  in do_translation_fault()
360 		return do_page_fault(addr, esr, regs);  in do_translation_fault()
362 	do_bad_area(addr, esr, regs);  in do_translation_fault()
369 static int do_bad(unsigned long addr, unsigned int esr, struct pt_regs *regs)  in do_bad()  argument
375 	int	(*fn)(unsigned long addr, unsigned int esr, struct pt_regs *regs);
455 asmlinkage void __exception do_mem_abort(unsigned long addr, unsigned int esr,  in do_mem_abort()  argument
461 	if (!inf->fn(addr, esr, regs))  in do_mem_abort()
465 		 inf->name, esr, addr);  in do_mem_abort()
470 	info.si_addr  = (void __user *)addr;  in do_mem_abort()
477 asmlinkage void __exception do_sp_pc_abort(unsigned long addr,  in do_sp_pc_abort()  argument
486 	info.si_addr  = (void __user *)addr;  in do_sp_pc_abort()
513 asmlinkage int __exception do_debug_exception(unsigned long addr,  in do_debug_exception()  argument
520 	if (!inf->fn(addr, esr, regs))  in do_debug_exception()
524 		 inf->name, esr, addr);  in do_debug_exception()
529 	info.si_addr  = (void __user *)addr;  in do_debug_exception()