1/*
 2 * Copyright (C) 2001 - 2003 Jeff Dike (jdike@addtoit.com)
 3 * Licensed under the GPL
 4 */
 5
 6#include <linux/kernel.h>
 7#include <linux/smp.h>
 8#include <linux/sched.h>
 9#include <linux/sched/debug.h>
10#include <linux/kallsyms.h>
11#include <asm/ptrace.h>
12
13/* This is declared by <linux/sched.h> */
14void show_regs(struct pt_regs *regs)
15{
16        printk("\n");
17        printk("EIP: %04lx:[<%08lx>] CPU: %d %s", 
18	       0xffff & PT_REGS_CS(regs), PT_REGS_IP(regs),
19	       smp_processor_id(), print_tainted());
20        if (PT_REGS_CS(regs) & 3)
21                printk(" ESP: %04lx:%08lx", 0xffff & PT_REGS_SS(regs),
22		       PT_REGS_SP(regs));
23        printk(" EFLAGS: %08lx\n    %s\n", PT_REGS_EFLAGS(regs),
24	       print_tainted());
25        printk("EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
26               PT_REGS_AX(regs), PT_REGS_BX(regs), 
27	       PT_REGS_CX(regs), PT_REGS_DX(regs));
28        printk("ESI: %08lx EDI: %08lx EBP: %08lx",
29	       PT_REGS_SI(regs), PT_REGS_DI(regs), PT_REGS_BP(regs));
30        printk(" DS: %04lx ES: %04lx\n",
31	       0xffff & PT_REGS_DS(regs), 
32	       0xffff & PT_REGS_ES(regs));
 
 
33}

 1/*
 2 * Copyright (C) 2001 - 2003 Jeff Dike (jdike@addtoit.com)
 3 * Licensed under the GPL
 4 */
 5
 6#include "linux/kernel.h"
 7#include "linux/smp.h"
 8#include "linux/sched.h"
 9#include "linux/kallsyms.h"
10#include "asm/ptrace.h"
11#include "sysrq.h"
12
13/* This is declared by <linux/sched.h> */
14void show_regs(struct pt_regs *regs)
15{
16        printk("\n");
17        printk("EIP: %04lx:[<%08lx>] CPU: %d %s", 
18	       0xffff & PT_REGS_CS(regs), PT_REGS_IP(regs),
19	       smp_processor_id(), print_tainted());
20        if (PT_REGS_CS(regs) & 3)
21                printk(" ESP: %04lx:%08lx", 0xffff & PT_REGS_SS(regs),
22		       PT_REGS_SP(regs));
23        printk(" EFLAGS: %08lx\n    %s\n", PT_REGS_EFLAGS(regs),
24	       print_tainted());
25        printk("EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
26               PT_REGS_AX(regs), PT_REGS_BX(regs), 
27	       PT_REGS_CX(regs), PT_REGS_DX(regs));
28        printk("ESI: %08lx EDI: %08lx EBP: %08lx",
29	       PT_REGS_SI(regs), PT_REGS_DI(regs), PT_REGS_BP(regs));
30        printk(" DS: %04lx ES: %04lx\n",
31	       0xffff & PT_REGS_DS(regs), 
32	       0xffff & PT_REGS_ES(regs));
33
34        show_trace(NULL, (unsigned long *) &regs);
35}
36
37/* Copied from i386. */
38static inline int valid_stack_ptr(struct thread_info *tinfo, void *p)
39{
40	return	p > (void *)tinfo &&
41		p < (void *)tinfo + THREAD_SIZE - 3;
42}
43
44/* Adapted from i386 (we also print the address we read from). */
45static inline unsigned long print_context_stack(struct thread_info *tinfo,
46				unsigned long *stack, unsigned long ebp)
47{
48	unsigned long addr;
49
50#ifdef CONFIG_FRAME_POINTER
51	while (valid_stack_ptr(tinfo, (void *)ebp)) {
52		addr = *(unsigned long *)(ebp + 4);
53		printk("%08lx:  [<%08lx>]", ebp + 4, addr);
54		print_symbol(" %s", addr);
55		printk("\n");
56		ebp = *(unsigned long *)ebp;
57	}
58#else
59	while (valid_stack_ptr(tinfo, stack)) {
60		addr = *stack;
61		if (__kernel_text_address(addr)) {
62			printk("%08lx:  [<%08lx>]", (unsigned long) stack, addr);
63			print_symbol(" %s", addr);
64			printk("\n");
65		}
66		stack++;
67	}
68#endif
69	return ebp;
70}
71
72void show_trace(struct task_struct* task, unsigned long * stack)
73{
74	unsigned long ebp;
75	struct thread_info *context;
76
77	/* Turn this into BUG_ON if possible. */
78	if (!stack) {
79		stack = (unsigned long*) &stack;
80		printk("show_trace: got NULL stack, implicit assumption task == current");
81		WARN_ON(1);
82	}
83
84	if (!task)
85		task = current;
86
87	if (task != current) {
88		ebp = (unsigned long) KSTK_EBP(task);
89	} else {
90		asm ("movl %%ebp, %0" : "=r" (ebp) : );
91	}
92
93	context = (struct thread_info *)
94		((unsigned long)stack & (~(THREAD_SIZE - 1)));
95	print_context_stack(context, stack, ebp);
96
97	printk("\n");
98}
99