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-rw-r--r--arch/cris/kernel/traps.c241
1 files changed, 0 insertions, 241 deletions
diff --git a/arch/cris/kernel/traps.c b/arch/cris/kernel/traps.c
deleted file mode 100644
index d4bc80469218..000000000000
--- a/arch/cris/kernel/traps.c
+++ /dev/null
@@ -1,241 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * linux/arch/cris/traps.c
- *
- * Here we handle the break vectors not used by the system call
- * mechanism, as well as some general stack/register dumping
- * things.
- *
- * Copyright (C) 2000-2007 Axis Communications AB
- *
- * Authors: Bjorn Wesen
- * Hans-Peter Nilsson
- *
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/utsname.h>
-#include <linux/sched/debug.h>
-#ifdef CONFIG_KALLSYMS
-#include <linux/kallsyms.h>
-#endif
-
-#include <asm/pgtable.h>
-#include <linux/uaccess.h>
-#include <arch/system.h>
-
-extern void arch_enable_nmi(void);
-extern void stop_watchdog(void);
-extern void reset_watchdog(void);
-extern void show_registers(struct pt_regs *regs);
-
-#ifdef CONFIG_DEBUG_BUGVERBOSE
-extern void handle_BUG(struct pt_regs *regs);
-#else
-#define handle_BUG(regs)
-#endif
-
-static int kstack_depth_to_print = 24;
-
-void (*nmi_handler)(struct pt_regs *);
-
-void show_trace(unsigned long *stack)
-{
- unsigned long addr, module_start, module_end;
- extern char _stext[], _etext[];
- int i;
-
- pr_err("\nCall Trace: ");
-
- i = 1;
- module_start = VMALLOC_START;
- module_end = VMALLOC_END;
-
- while (((long)stack & (THREAD_SIZE - 1)) != 0) {
- if (__get_user(addr, stack)) {
- /* This message matches "failing address" marked
- s390 in ksymoops, so lines containing it will
- not be filtered out by ksymoops. */
- pr_err("Failing address 0x%lx\n", (unsigned long)stack);
- break;
- }
- stack++;
-
- /*
- * If the address is either in the text segment of the
- * kernel, or in the region which contains vmalloc'ed
- * memory, it *may* be the address of a calling
- * routine; if so, print it so that someone tracing
- * down the cause of the crash will be able to figure
- * out the call path that was taken.
- */
- if (((addr >= (unsigned long)_stext) &&
- (addr <= (unsigned long)_etext)) ||
- ((addr >= module_start) && (addr <= module_end))) {
-#ifdef CONFIG_KALLSYMS
- print_ip_sym(addr);
-#else
- if (i && ((i % 8) == 0))
- pr_err("\n ");
- pr_err("[<%08lx>] ", addr);
- i++;
-#endif
- }
- }
-}
-
-/*
- * These constants are for searching for possible module text
- * segments. MODULE_RANGE is a guess of how much space is likely
- * to be vmalloced.
- */
-
-#define MODULE_RANGE (8*1024*1024)
-
-/*
- * The output (format, strings and order) is adjusted to be usable with
- * ksymoops-2.4.1 with some necessary CRIS-specific patches. Please don't
- * change it unless you're serious about adjusting ksymoops and syncing
- * with the ksymoops maintainer.
- */
-
-void
-show_stack(struct task_struct *task, unsigned long *sp)
-{
- unsigned long *stack, addr;
- int i;
-
- /*
- * debugging aid: "show_stack(NULL);" prints a
- * back trace.
- */
-
- if (sp == NULL) {
- if (task)
- sp = (unsigned long*)task->thread.ksp;
- else
- sp = (unsigned long*)rdsp();
- }
-
- stack = sp;
-
- pr_err("\nStack from %08lx:\n ", (unsigned long)stack);
- for (i = 0; i < kstack_depth_to_print; i++) {
- if (((long)stack & (THREAD_SIZE-1)) == 0)
- break;
- if (i && ((i % 8) == 0))
- pr_err("\n ");
- if (__get_user(addr, stack)) {
- /* This message matches "failing address" marked
- s390 in ksymoops, so lines containing it will
- not be filtered out by ksymoops. */
- pr_err("Failing address 0x%lx\n", (unsigned long)stack);
- break;
- }
- stack++;
- pr_err("%08lx ", addr);
- }
- show_trace(sp);
-}
-
-#if 0
-/* displays a short stack trace */
-
-int
-show_stack(void)
-{
- unsigned long *sp = (unsigned long *)rdusp();
- int i;
-
- pr_err("Stack dump [0x%08lx]:\n", (unsigned long)sp);
- for (i = 0; i < 16; i++)
- pr_err("sp + %d: 0x%08lx\n", i*4, sp[i]);
- return 0;
-}
-#endif
-
-void set_nmi_handler(void (*handler)(struct pt_regs *))
-{
- nmi_handler = handler;
- arch_enable_nmi();
-}
-
-#ifdef CONFIG_DEBUG_NMI_OOPS
-void oops_nmi_handler(struct pt_regs *regs)
-{
- stop_watchdog();
- oops_in_progress = 1;
- pr_err("NMI!\n");
- show_registers(regs);
- oops_in_progress = 0;
- oops_exit();
- pr_err("\n"); /* Flush mtdoops. */
-}
-
-static int __init oops_nmi_register(void)
-{
- set_nmi_handler(oops_nmi_handler);
- return 0;
-}
-
-__initcall(oops_nmi_register);
-
-#endif
-
-/*
- * This gets called from entry.S when the watchdog has bitten. Show something
- * similar to an Oops dump, and if the kernel is configured to be a nice
- * doggy, then halt instead of reboot.
- */
-void watchdog_bite_hook(struct pt_regs *regs)
-{
-#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
- local_irq_disable();
- stop_watchdog();
- show_registers(regs);
-
- while (1)
- ; /* Do nothing. */
-#else
- show_registers(regs);
-#endif
-}
-
-/* This is normally the Oops function. */
-void die_if_kernel(const char *str, struct pt_regs *regs, long err)
-{
- if (user_mode(regs))
- return;
-
-#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
- /*
- * This printout might take too long and could trigger
- * the watchdog normally. If NICE_DOGGY is set, simply
- * stop the watchdog during the printout.
- */
- stop_watchdog();
-#endif
-
- oops_enter();
- handle_BUG(regs);
-
- pr_err("Linux %s %s\n", utsname()->release, utsname()->version);
- pr_err("%s: %04lx\n", str, err & 0xffff);
-
- show_registers(regs);
-
- oops_exit();
- oops_in_progress = 0;
- pr_err("\n"); /* Flush mtdoops. */
-
-#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
- reset_watchdog();
-#endif
- do_exit(SIGSEGV);
-}
-
-void __init trap_init(void)
-{
- /* Nothing needs to be done */
-}