fault_64.c (5ad18b2e60b75c7297a998dea702451d33a052ed) fault_64.c (b98cca444d287a63dd96df04af7fb9793567599e)
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * arch/sparc64/mm/fault.c: Page fault handlers for the 64-bit Sparc.
4 *
5 * Copyright (C) 1996, 2008 David S. Miller (davem@davemloft.net)
6 * Copyright (C) 1997, 1999 Jakub Jelinek (jj@ultra.linux.cz)
7 */
8

--- 24 unchanged lines hidden (view full) ---

33#include <asm/asi.h>
34#include <asm/lsu.h>
35#include <asm/sections.h>
36#include <asm/mmu_context.h>
37#include <asm/setup.h>
38
39int show_unhandled_signals = 1;
40
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * arch/sparc64/mm/fault.c: Page fault handlers for the 64-bit Sparc.
4 *
5 * Copyright (C) 1996, 2008 David S. Miller (davem@davemloft.net)
6 * Copyright (C) 1997, 1999 Jakub Jelinek (jj@ultra.linux.cz)
7 */
8

--- 24 unchanged lines hidden (view full) ---

33#include <asm/asi.h>
34#include <asm/lsu.h>
35#include <asm/sections.h>
36#include <asm/mmu_context.h>
37#include <asm/setup.h>
38
39int show_unhandled_signals = 1;
40
41static inline __kprobes int notify_page_fault(struct pt_regs *regs)
42{
43 int ret = 0;
44
45 /* kprobe_running() needs smp_processor_id() */
46 if (kprobes_built_in() && !user_mode(regs)) {
47 preempt_disable();
48 if (kprobe_running() && kprobe_fault_handler(regs, 0))
49 ret = 1;
50 preempt_enable();
51 }
52 return ret;
53}
54
55static void __kprobes unhandled_fault(unsigned long address,
56 struct task_struct *tsk,
57 struct pt_regs *regs)
58{
59 if ((unsigned long) address < PAGE_SIZE) {
60 printk(KERN_ALERT "Unable to handle kernel NULL "
61 "pointer dereference\n");
62 } else {

--- 217 unchanged lines hidden (view full) ---

280 unsigned int insn = 0;
281 int si_code, fault_code;
282 vm_fault_t fault;
283 unsigned long address, mm_rss;
284 unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
285
286 fault_code = get_thread_fault_code();
287
41static void __kprobes unhandled_fault(unsigned long address,
42 struct task_struct *tsk,
43 struct pt_regs *regs)
44{
45 if ((unsigned long) address < PAGE_SIZE) {
46 printk(KERN_ALERT "Unable to handle kernel NULL "
47 "pointer dereference\n");
48 } else {

--- 217 unchanged lines hidden (view full) ---

266 unsigned int insn = 0;
267 int si_code, fault_code;
268 vm_fault_t fault;
269 unsigned long address, mm_rss;
270 unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
271
272 fault_code = get_thread_fault_code();
273
288 if (notify_page_fault(regs))
274 if (kprobe_page_fault(regs, 0))
289 goto exit_exception;
290
291 si_code = SEGV_MAPERR;
292 address = current_thread_info()->fault_address;
293
294 if ((fault_code & FAULT_CODE_ITLB) &&
295 (fault_code & FAULT_CODE_DTLB))
296 BUG();

--- 244 unchanged lines hidden --- 		275 goto exit_exception;
276
277 si_code = SEGV_MAPERR;
278 address = current_thread_info()->fault_address;
279
280 if ((fault_code & FAULT_CODE_ITLB) &&
281 (fault_code & FAULT_CODE_DTLB))
282 BUG();

--- 244 unchanged lines hidden ---