mirror of https://gitee.com/openkylin/linux.git
CRIS: Use KALLSYMs if available in call stack dump
Also, print kernel version on oops. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
This commit is contained in:
Jesper Nilsson
parent
ca36c1fadd
commit
421d085252
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@ -14,6 +14,10 @@
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/utsname.h>
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#ifdef CONFIG_KALLSYMS
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#include <linux/kallsyms.h>
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#endif
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#include <asm/pgtable.h>
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#include <asm/uaccess.h>
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@ -34,25 +38,24 @@ static int kstack_depth_to_print = 24;
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void (*nmi_handler)(struct pt_regs *);
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void
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show_trace(unsigned long *stack)
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void show_trace(unsigned long *stack)
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{
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unsigned long addr, module_start, module_end;
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extern char _stext, _etext;
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int i;
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printk("\nCall Trace: ");
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pr_err("\nCall Trace: ");
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i = 1;
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module_start = VMALLOC_START;
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module_end = VMALLOC_END;
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while (((long)stack & (THREAD_SIZE-1)) != 0) {
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while (((long)stack & (THREAD_SIZE - 1)) != 0) {
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if (__get_user(addr, stack)) {
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/* This message matches "failing address" marked
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s390 in ksymoops, so lines containing it will
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not be filtered out by ksymoops. */
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printk("Failing address 0x%lx\n", (unsigned long)stack);
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pr_err("Failing address 0x%lx\n", (unsigned long)stack);
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break;
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}
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stack++;
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@ -68,10 +71,14 @@ show_trace(unsigned long *stack)
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if (((addr >= (unsigned long)&_stext) &&
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(addr <= (unsigned long)&_etext)) ||
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((addr >= module_start) && (addr <= module_end))) {
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#ifdef CONFIG_KALLSYMS
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print_ip_sym(addr);
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#else
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if (i && ((i % 8) == 0))
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printk("\n ");
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printk("[<%08lx>] ", addr);
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pr_err("\n ");
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pr_err("[<%08lx>] ", addr);
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i++;
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#endif
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}
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}
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}
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@ -111,21 +118,21 @@ show_stack(struct task_struct *task, unsigned long *sp)
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stack = sp;
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printk("\nStack from %08lx:\n ", (unsigned long)stack);
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pr_err("\nStack from %08lx:\n ", (unsigned long)stack);
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for (i = 0; i < kstack_depth_to_print; i++) {
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if (((long)stack & (THREAD_SIZE-1)) == 0)
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break;
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if (i && ((i % 8) == 0))
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printk("\n ");
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pr_err("\n ");
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if (__get_user(addr, stack)) {
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/* This message matches "failing address" marked
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s390 in ksymoops, so lines containing it will
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not be filtered out by ksymoops. */
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printk("Failing address 0x%lx\n", (unsigned long)stack);
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pr_err("Failing address 0x%lx\n", (unsigned long)stack);
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break;
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}
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stack++;
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printk("%08lx ", addr);
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pr_err("%08lx ", addr);
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}
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show_trace(sp);
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}
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@ -139,33 +146,32 @@ show_stack(void)
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unsigned long *sp = (unsigned long *)rdusp();
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int i;
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printk("Stack dump [0x%08lx]:\n", (unsigned long)sp);
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pr_err("Stack dump [0x%08lx]:\n", (unsigned long)sp);
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for (i = 0; i < 16; i++)
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printk("sp + %d: 0x%08lx\n", i*4, sp[i]);
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pr_err("sp + %d: 0x%08lx\n", i*4, sp[i]);
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return 0;
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}
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#endif
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void
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set_nmi_handler(void (*handler)(struct pt_regs *))
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void set_nmi_handler(void (*handler)(struct pt_regs *))
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{
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nmi_handler = handler;
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arch_enable_nmi();
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}
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#ifdef CONFIG_DEBUG_NMI_OOPS
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void
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oops_nmi_handler(struct pt_regs *regs)
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void oops_nmi_handler(struct pt_regs *regs)
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{
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stop_watchdog();
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oops_in_progress = 1;
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printk("NMI!\n");
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pr_err("NMI!\n");
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show_registers(regs);
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oops_in_progress = 0;
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oops_exit();
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pr_err("\n"); /* Flush mtdoops. */
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}
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static int __init
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oops_nmi_register(void)
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static int __init oops_nmi_register(void)
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{
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set_nmi_handler(oops_nmi_handler);
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return 0;
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@ -180,8 +186,7 @@ __initcall(oops_nmi_register);
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* similar to an Oops dump, and if the kernel is configured to be a nice
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* doggy, then halt instead of reboot.
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*/
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void
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watchdog_bite_hook(struct pt_regs *regs)
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void watchdog_bite_hook(struct pt_regs *regs)
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{
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#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
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local_irq_disable();
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@ -196,8 +201,7 @@ watchdog_bite_hook(struct pt_regs *regs)
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}
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/* This is normally the Oops function. */
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void
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die_if_kernel(const char *str, struct pt_regs *regs, long err)
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void die_if_kernel(const char *str, struct pt_regs *regs, long err)
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{
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if (user_mode(regs))
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return;
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@ -211,13 +215,17 @@ die_if_kernel(const char *str, struct pt_regs *regs, long err)
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stop_watchdog();
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#endif
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oops_enter();
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handle_BUG(regs);
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printk("%s: %04lx\n", str, err & 0xffff);
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pr_err("Linux %s %s\n", utsname()->release, utsname()->version);
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pr_err("%s: %04lx\n", str, err & 0xffff);
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show_registers(regs);
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oops_exit();
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oops_in_progress = 0;
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pr_err("\n"); /* Flush mtdoops. */
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#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
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reset_watchdog();
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@ -225,8 +233,7 @@ die_if_kernel(const char *str, struct pt_regs *regs, long err)
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do_exit(SIGSEGV);
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}
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void __init
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trap_init(void)
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void __init trap_init(void)
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{
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/* Nothing needs to be done */
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}
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