[linux-2.6-block.git] / arch / csky / kernel / ptrace.c

// SPDX-License-Identifier: GPL-2.0
// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.

#include <linux/audit.h>
#include <linux/elf.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/ptrace.h>
#include <linux/regset.h>
#include <linux/sched.h>
#include <linux/sched/task_stack.h>
#include <linux/signal.h>
#include <linux/smp.h>
#include <linux/tracehook.h>
#include <linux/uaccess.h>
#include <linux/user.h>

#include <asm/thread_info.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/processor.h>
#include <asm/asm-offsets.h>

#include <abi/regdef.h>

#define CREATE_TRACE_POINTS
#include <trace/events/syscalls.h>

/* sets the trace bits. */
#define TRACE_MODE_SI      (1 << 14)
#define TRACE_MODE_RUN     0
#define TRACE_MODE_MASK    ~(0x3 << 14)

/*
 * Make sure the single step bit is not set.
 */
static void singlestep_disable(struct task_struct *tsk)
{
	struct pt_regs *regs;

	regs = task_pt_regs(tsk);
	regs->sr = (regs->sr & TRACE_MODE_MASK) | TRACE_MODE_RUN;
}

static void singlestep_enable(struct task_struct *tsk)
{
	struct pt_regs *regs;

	regs = task_pt_regs(tsk);
	regs->sr = (regs->sr & TRACE_MODE_MASK) | TRACE_MODE_SI;
}

/*
 * Make sure the single step bit is set.
 */
void user_enable_single_step(struct task_struct *child)
{
	singlestep_enable(child);
}

void user_disable_single_step(struct task_struct *child)
{
	singlestep_disable(child);
}

enum csky_regset {
	REGSET_GPR,
	REGSET_FPR,
};

static int gpr_get(struct task_struct *target,
		   const struct user_regset *regset,
		   unsigned int pos, unsigned int count,
		   void *kbuf, void __user *ubuf)
{
	struct pt_regs *regs;

	regs = task_pt_regs(target);

	/* Abiv1 regs->tls is fake and we need sync here. */
	regs->tls = task_thread_info(target)->tp_value;

	return user_regset_copyout(&pos, &count, &kbuf, &ubuf, regs, 0, -1);
}

static int gpr_set(struct task_struct *target,
		    const struct user_regset *regset,
		    unsigned int pos, unsigned int count,
		    const void *kbuf, const void __user *ubuf)
{
	int ret;
	struct pt_regs regs;

	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &regs, 0, -1);
	if (ret)
		return ret;

	regs.sr = task_pt_regs(target)->sr;
#ifdef CONFIG_CPU_HAS_HILO
	regs.dcsr = task_pt_regs(target)->dcsr;
#endif
	task_thread_info(target)->tp_value = regs.tls;

	*task_pt_regs(target) = regs;

	return 0;
}

static int fpr_get(struct task_struct *target,
		   const struct user_regset *regset,
		   unsigned int pos, unsigned int count,
		   void *kbuf, void __user *ubuf)
{
	struct user_fp *regs = (struct user_fp *)&target->thread.user_fp;

#if defined(CONFIG_CPU_HAS_FPUV2) && !defined(CONFIG_CPU_HAS_VDSP)
	int i;
	struct user_fp tmp = *regs;

	for (i = 0; i < 16; i++) {
		tmp.vr[i*4] = regs->vr[i*2];
		tmp.vr[i*4 + 1] = regs->vr[i*2 + 1];
	}

	for (i = 0; i < 32; i++)
		tmp.vr[64 + i] = regs->vr[32 + i];

	return user_regset_copyout(&pos, &count, &kbuf, &ubuf, &tmp, 0, -1);
#else
	return user_regset_copyout(&pos, &count, &kbuf, &ubuf, regs, 0, -1);
#endif
}

static int fpr_set(struct task_struct *target,
		   const struct user_regset *regset,
		   unsigned int pos, unsigned int count,
		   const void *kbuf, const void __user *ubuf)
{
	int ret;
	struct user_fp *regs = (struct user_fp *)&target->thread.user_fp;

#if defined(CONFIG_CPU_HAS_FPUV2) && !defined(CONFIG_CPU_HAS_VDSP)
	int i;
	struct user_fp tmp;

	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &tmp, 0, -1);

	*regs = tmp;

	for (i = 0; i < 16; i++) {
		regs->vr[i*2] = tmp.vr[i*4];
		regs->vr[i*2 + 1] = tmp.vr[i*4 + 1];
	}

	for (i = 0; i < 32; i++)
		regs->vr[32 + i] = tmp.vr[64 + i];
#else
	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, regs, 0, -1);
#endif

	return ret;
}

static const struct user_regset csky_regsets[] = {
	[REGSET_GPR] = {
		.core_note_type = NT_PRSTATUS,
		.n = sizeof(struct pt_regs) / sizeof(u32),
		.size = sizeof(u32),
		.align = sizeof(u32),
		.get = &gpr_get,
		.set = &gpr_set,
	},
	[REGSET_FPR] = {
		.core_note_type = NT_PRFPREG,
		.n = sizeof(struct user_fp) / sizeof(u32),
		.size = sizeof(u32),
		.align = sizeof(u32),
		.get = &fpr_get,
		.set = &fpr_set,
	},
};

static const struct user_regset_view user_csky_view = {
	.name = "csky",
	.e_machine = ELF_ARCH,
	.regsets = csky_regsets,
	.n = ARRAY_SIZE(csky_regsets),
};

const struct user_regset_view *task_user_regset_view(struct task_struct *task)
{
	return &user_csky_view;
}

void ptrace_disable(struct task_struct *child)
{
	singlestep_disable(child);
}

long arch_ptrace(struct task_struct *child, long request,
		 unsigned long addr, unsigned long data)
{
	long ret = -EIO;

	switch (request) {
	default:
		ret = ptrace_request(child, request, addr, data);
		break;
	}

	return ret;
}

asmlinkage void syscall_trace_enter(struct pt_regs *regs)
{
	if (test_thread_flag(TIF_SYSCALL_TRACE))
		if (tracehook_report_syscall_entry(regs))
			syscall_set_nr(current, regs, -1);

	if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
		trace_sys_enter(regs, syscall_get_nr(current, regs));

	audit_syscall_entry(regs_syscallid(regs), regs->a0, regs->a1, regs->a2, regs->a3);
}

asmlinkage void syscall_trace_exit(struct pt_regs *regs)
{
	audit_syscall_exit(regs);

	if (test_thread_flag(TIF_SYSCALL_TRACE))
		tracehook_report_syscall_exit(regs, 0);

	if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
		trace_sys_exit(regs, syscall_get_return_value(current, regs));
}

extern void show_stack(struct task_struct *task, unsigned long *stack);
void show_regs(struct pt_regs *fp)
{
	unsigned long   *sp;
	unsigned char   *tp;
	int	i;

	pr_info("\nCURRENT PROCESS:\n\n");
	pr_info("COMM=%s PID=%d\n", current->comm, current->pid);

	if (current->mm) {
		pr_info("TEXT=%08x-%08x DATA=%08x-%08x BSS=%08x-%08x\n",
		       (int) current->mm->start_code,
		       (int) current->mm->end_code,
		       (int) current->mm->start_data,
		       (int) current->mm->end_data,
		       (int) current->mm->end_data,
		       (int) current->mm->brk);
		pr_info("USER-STACK=%08x  KERNEL-STACK=%08x\n\n",
		       (int) current->mm->start_stack,
		       (int) (((unsigned long) current) + 2 * PAGE_SIZE));
	}

	pr_info("PC: 0x%08lx (%pS)\n", (long)fp->pc, (void *)fp->pc);
	pr_info("LR: 0x%08lx (%pS)\n", (long)fp->lr, (void *)fp->lr);
	pr_info("SP: 0x%08lx\n", (long)fp);
	pr_info("orig_a0: 0x%08lx\n", fp->orig_a0);
	pr_info("PSR: 0x%08lx\n", (long)fp->sr);

	pr_info(" a0: 0x%08lx   a1: 0x%08lx   a2: 0x%08lx   a3: 0x%08lx\n",
		fp->a0, fp->a1, fp->a2, fp->a3);
#if defined(__CSKYABIV2__)
	pr_info(" r4: 0x%08lx   r5: 0x%08lx   r6: 0x%08lx   r7: 0x%08lx\n",
		fp->regs[0], fp->regs[1], fp->regs[2], fp->regs[3]);
	pr_info(" r8: 0x%08lx   r9: 0x%08lx  r10: 0x%08lx  r11: 0x%08lx\n",
		fp->regs[4], fp->regs[5], fp->regs[6], fp->regs[7]);
	pr_info("r12: 0x%08lx  r13: 0x%08lx  r15: 0x%08lx\n",
		fp->regs[8], fp->regs[9], fp->lr);
	pr_info("r16: 0x%08lx  r17: 0x%08lx  r18: 0x%08lx  r19: 0x%08lx\n",
		fp->exregs[0], fp->exregs[1], fp->exregs[2], fp->exregs[3]);
	pr_info("r20: 0x%08lx  r21: 0x%08lx  r22: 0x%08lx  r23: 0x%08lx\n",
		fp->exregs[4], fp->exregs[5], fp->exregs[6], fp->exregs[7]);
	pr_info("r24: 0x%08lx  r25: 0x%08lx  r26: 0x%08lx  r27: 0x%08lx\n",
		fp->exregs[8], fp->exregs[9], fp->exregs[10], fp->exregs[11]);
	pr_info("r28: 0x%08lx  r29: 0x%08lx  r30: 0x%08lx  tls: 0x%08lx\n",
		fp->exregs[12], fp->exregs[13], fp->exregs[14], fp->tls);
	pr_info(" hi: 0x%08lx   lo: 0x%08lx\n",
		fp->rhi, fp->rlo);
#else
	pr_info(" r6: 0x%08lx   r7: 0x%08lx   r8: 0x%08lx   r9: 0x%08lx\n",
		fp->regs[0], fp->regs[1], fp->regs[2], fp->regs[3]);
	pr_info("r10: 0x%08lx  r11: 0x%08lx  r12: 0x%08lx  r13: 0x%08lx\n",
		fp->regs[4], fp->regs[5], fp->regs[6], fp->regs[7]);
	pr_info("r14: 0x%08lx   r1: 0x%08lx  r15: 0x%08lx\n",
		fp->regs[8], fp->regs[9], fp->lr);
#endif

	pr_info("\nCODE:");
	tp = ((unsigned char *) fp->pc) - 0x20;
	tp += ((int)tp % 4) ? 2 : 0;
	for (sp = (unsigned long *) tp, i = 0; (i < 0x40);  i += 4) {
		if ((i % 0x10) == 0)
			pr_cont("\n%08x: ", (int) (tp + i));
		pr_cont("%08x ", (int) *sp++);
	}
	pr_cont("\n");

	pr_info("\nKERNEL STACK:");
	tp = ((unsigned char *) fp) - 0x40;
	for (sp = (unsigned long *) tp, i = 0; (i < 0xc0); i += 4) {
		if ((i % 0x10) == 0)
			pr_cont("\n%08x: ", (int) (tp + i));
		pr_cont("%08x ", (int) *sp++);
	}
	pr_cont("\n");

	show_stack(NULL, (unsigned long *)fp->regs[4]);
	return;
}
Commit	Line	Data
2ce36bfa GR	1	// SPDX-License-Identifier: GPL-2.0
	2	// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
	3
2f7932b0	4	#include <linux/audit.h>
2ce36bfa GR	5	#include <linux/elf.h>
	6	#include <linux/errno.h>
	7	#include <linux/kernel.h>
	8	#include <linux/mm.h>
	9	#include <linux/ptrace.h>
	10	#include <linux/regset.h>
	11	#include <linux/sched.h>
9216cd72	12	#include <linux/sched/task_stack.h>
2ce36bfa GR	13	#include <linux/signal.h>
2ce36bfa GR	14	#include <linux/smp.h>
2f7932b0	15	#include <linux/tracehook.h>
2ce36bfa GR	16	#include <linux/uaccess.h>
	17	#include <linux/user.h>
	18
	19	#include <asm/thread_info.h>
	20	#include <asm/page.h>
	21	#include <asm/pgtable.h>
	22	#include <asm/processor.h>
	23	#include <asm/asm-offsets.h>
	24
	25	#include <abi/regdef.h>
	26
2f7932b0 GR	27	#define CREATE_TRACE_POINTS
	28	#include <trace/events/syscalls.h>
	29
2ce36bfa GR	30	/* sets the trace bits. */
	31	#define TRACE_MODE_SI (1 << 14)
	32	#define TRACE_MODE_RUN 0
	33	#define TRACE_MODE_MASK ~(0x3 << 14)
	34
	35	/*
	36	* Make sure the single step bit is not set.
	37	*/
	38	static void singlestep_disable(struct task_struct *tsk)
	39	{
	40	struct pt_regs *regs;
	41
	42	regs = task_pt_regs(tsk);
	43	regs->sr = (regs->sr & TRACE_MODE_MASK) \| TRACE_MODE_RUN;
	44	}
	45
	46	static void singlestep_enable(struct task_struct *tsk)
	47	{
	48	struct pt_regs *regs;
	49
	50	regs = task_pt_regs(tsk);
	51	regs->sr = (regs->sr & TRACE_MODE_MASK) \| TRACE_MODE_SI;
	52	}
	53
	54	/*
	55	* Make sure the single step bit is set.
	56	*/
	57	void user_enable_single_step(struct task_struct *child)
	58	{
2ce36bfa GR	59	singlestep_enable(child);
	60	}
	61
	62	void user_disable_single_step(struct task_struct *child)
	63	{
2ce36bfa GR	64	singlestep_disable(child);
	65	}
	66
	67	enum csky_regset {
	68	REGSET_GPR,
	69	REGSET_FPR,
	70	};
	71
	72	static int gpr_get(struct task_struct *target,
	73	const struct user_regset *regset,
	74	unsigned int pos, unsigned int count,
	75	void kbuf, void __user ubuf)
	76	{
	77	struct pt_regs *regs;
	78
	79	regs = task_pt_regs(target);
	80
	81	/* Abiv1 regs->tls is fake and we need sync here. */
	82	regs->tls = task_thread_info(target)->tp_value;
	83
	84	return user_regset_copyout(&pos, &count, &kbuf, &ubuf, regs, 0, -1);
	85	}
	86
	87	static int gpr_set(struct task_struct *target,
	88	const struct user_regset *regset,
	89	unsigned int pos, unsigned int count,
	90	const void kbuf, const void __user ubuf)
	91	{
	92	int ret;
	93	struct pt_regs regs;
	94
	95	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &regs, 0, -1);
	96	if (ret)
	97	return ret;
	98
	99	regs.sr = task_pt_regs(target)->sr;
789154c2 GR	100	#ifdef CONFIG_CPU_HAS_HILO
	101	regs.dcsr = task_pt_regs(target)->dcsr;
	102	#endif
2ce36bfa GR	103	task_thread_info(target)->tp_value = regs.tls;
	104
	105	*task_pt_regs(target) = regs;
	106
	107	return 0;
	108	}
	109
	110	static int fpr_get(struct task_struct *target,
	111	const struct user_regset *regset,
	112	unsigned int pos, unsigned int count,
	113	void kbuf, void __user ubuf)
	114	{
	115	struct user_fp regs = (struct user_fp )&target->thread.user_fp;
	116
	117	#if defined(CONFIG_CPU_HAS_FPUV2) && !defined(CONFIG_CPU_HAS_VDSP)
	118	int i;
	119	struct user_fp tmp = *regs;
	120
	121	for (i = 0; i < 16; i++) {
	122	tmp.vr[i4] = regs->vr[i2];
	123	tmp.vr[i4 + 1] = regs->vr[i2 + 1];
	124	}
	125
	126	for (i = 0; i < 32; i++)
	127	tmp.vr[64 + i] = regs->vr[32 + i];
	128
	129	return user_regset_copyout(&pos, &count, &kbuf, &ubuf, &tmp, 0, -1);
	130	#else
	131	return user_regset_copyout(&pos, &count, &kbuf, &ubuf, regs, 0, -1);
	132	#endif
	133	}
	134
	135	static int fpr_set(struct task_struct *target,
	136	const struct user_regset *regset,
	137	unsigned int pos, unsigned int count,
	138	const void kbuf, const void __user ubuf)
	139	{
	140	int ret;
	141	struct user_fp regs = (struct user_fp )&target->thread.user_fp;
	142
	143	#if defined(CONFIG_CPU_HAS_FPUV2) && !defined(CONFIG_CPU_HAS_VDSP)
	144	int i;
	145	struct user_fp tmp;
	146
	147	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &tmp, 0, -1);
	148
	149	*regs = tmp;
	150
	151	for (i = 0; i < 16; i++) {
	152	regs->vr[i2] = tmp.vr[i4];
	153	regs->vr[i2 + 1] = tmp.vr[i4 + 1];
	154	}
	155
	156	for (i = 0; i < 32; i++)
	157	regs->vr[32 + i] = tmp.vr[64 + i];
	158	#else
	159	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, regs, 0, -1);
	160	#endif
	161
	162	return ret;
	163	}
	164
	165	static const struct user_regset csky_regsets[] = {
	166	[REGSET_GPR] = {
167	.core_note_type = NT_PRSTATUS,
9216cd72	168	.n = sizeof(struct pt_regs) / sizeof(u32),
2ce36bfa GR	169	.size = sizeof(u32),
	170	.align = sizeof(u32),
	171	.get = &gpr_get,
	172	.set = &gpr_set,
	173	},
	174	[REGSET_FPR] = {
	175	.core_note_type = NT_PRFPREG,
	176	.n = sizeof(struct user_fp) / sizeof(u32),
	177	.size = sizeof(u32),
	178	.align = sizeof(u32),
	179	.get = &fpr_get,
	180	.set = &fpr_set,
	181	},
	182	};
	183
	184	static const struct user_regset_view user_csky_view = {
	185	.name = "csky",
	186	.e_machine = ELF_ARCH,
	187	.regsets = csky_regsets,
	188	.n = ARRAY_SIZE(csky_regsets),
	189	};
	190
	191	const struct user_regset_view task_user_regset_view(struct task_struct task)
	192	{
	193	return &user_csky_view;
	194	}
	195
	196	void ptrace_disable(struct task_struct *child)
	197	{
	198	singlestep_disable(child);
	199	}
	200
	201	long arch_ptrace(struct task_struct *child, long request,
	202	unsigned long addr, unsigned long data)
	203	{
	204	long ret = -EIO;
	205
	206	switch (request) {
	207	default:
	208	ret = ptrace_request(child, request, addr, data);
	209	break;
	210	}
	211
	212	return ret;
	213	}
	214
2f7932b0	215	asmlinkage void syscall_trace_enter(struct pt_regs *regs)
2ce36bfa	216	{
2f7932b0	217	if (test_thread_flag(TIF_SYSCALL_TRACE))
a691f333 GR	218	if (tracehook_report_syscall_entry(regs))
a691f333 GR	219	syscall_set_nr(current, regs, -1);
2f7932b0 GR	220
	221	if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
	222	trace_sys_enter(regs, syscall_get_nr(current, regs));
	223
	224	audit_syscall_entry(regs_syscallid(regs), regs->a0, regs->a1, regs->a2, regs->a3);
	225	}
	226
	227	asmlinkage void syscall_trace_exit(struct pt_regs *regs)
	228	{
	229	audit_syscall_exit(regs);
	230
	231	if (test_thread_flag(TIF_SYSCALL_TRACE))
	232	tracehook_report_syscall_exit(regs, 0);
2ce36bfa	233
2f7932b0 GR	234	if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
2f7932b0 GR	235	trace_sys_exit(regs, syscall_get_return_value(current, regs));
2ce36bfa GR	236	}
2ce36bfa GR	237
8f4f1639	238	extern void show_stack(struct task_struct task, unsigned long stack);
2ce36bfa GR	239	void show_regs(struct pt_regs *fp)
	240	{
	241	unsigned long *sp;
	242	unsigned char *tp;
	243	int i;
	244
	245	pr_info("\nCURRENT PROCESS:\n\n");
	246	pr_info("COMM=%s PID=%d\n", current->comm, current->pid);
	247
	248	if (current->mm) {
	249	pr_info("TEXT=%08x-%08x DATA=%08x-%08x BSS=%08x-%08x\n",
	250	(int) current->mm->start_code,
	251	(int) current->mm->end_code,
	252	(int) current->mm->start_data,
	253	(int) current->mm->end_data,
	254	(int) current->mm->end_data,
	255	(int) current->mm->brk);
	256	pr_info("USER-STACK=%08x KERNEL-STACK=%08x\n\n",
	257	(int) current->mm->start_stack,
	258	(int) (((unsigned long) current) + 2 * PAGE_SIZE));
	259	}
	260
8f4f1639 GR	261	pr_info("PC: 0x%08lx (%pS)\n", (long)fp->pc, (void *)fp->pc);
	262	pr_info("LR: 0x%08lx (%pS)\n", (long)fp->lr, (void *)fp->lr);
	263	pr_info("SP: 0x%08lx\n", (long)fp);
2ce36bfa GR	264	pr_info("orig_a0: 0x%08lx\n", fp->orig_a0);
	265	pr_info("PSR: 0x%08lx\n", (long)fp->sr);
	266
8f4f1639 GR	267	pr_info(" a0: 0x%08lx a1: 0x%08lx a2: 0x%08lx a3: 0x%08lx\n",
8f4f1639 GR	268	fp->a0, fp->a1, fp->a2, fp->a3);
2ce36bfa	269	#if defined(__CSKYABIV2__)
8f4f1639	270	pr_info(" r4: 0x%08lx r5: 0x%08lx r6: 0x%08lx r7: 0x%08lx\n",
2ce36bfa	271	fp->regs[0], fp->regs[1], fp->regs[2], fp->regs[3]);
8f4f1639	272	pr_info(" r8: 0x%08lx r9: 0x%08lx r10: 0x%08lx r11: 0x%08lx\n",
2ce36bfa	273	fp->regs[4], fp->regs[5], fp->regs[6], fp->regs[7]);
8f4f1639	274	pr_info("r12: 0x%08lx r13: 0x%08lx r15: 0x%08lx\n",
2ce36bfa	275	fp->regs[8], fp->regs[9], fp->lr);
8f4f1639	276	pr_info("r16: 0x%08lx r17: 0x%08lx r18: 0x%08lx r19: 0x%08lx\n",
2ce36bfa	277	fp->exregs[0], fp->exregs[1], fp->exregs[2], fp->exregs[3]);
8f4f1639	278	pr_info("r20: 0x%08lx r21: 0x%08lx r22: 0x%08lx r23: 0x%08lx\n",
2ce36bfa	279	fp->exregs[4], fp->exregs[5], fp->exregs[6], fp->exregs[7]);
8f4f1639	280	pr_info("r24: 0x%08lx r25: 0x%08lx r26: 0x%08lx r27: 0x%08lx\n",
2ce36bfa	281	fp->exregs[8], fp->exregs[9], fp->exregs[10], fp->exregs[11]);
8f4f1639	282	pr_info("r28: 0x%08lx r29: 0x%08lx r30: 0x%08lx tls: 0x%08lx\n",
2ce36bfa	283	fp->exregs[12], fp->exregs[13], fp->exregs[14], fp->tls);
8f4f1639	284	pr_info(" hi: 0x%08lx lo: 0x%08lx\n",
2ce36bfa GR	285	fp->rhi, fp->rlo);
2ce36bfa GR	286	#else
8f4f1639	287	pr_info(" r6: 0x%08lx r7: 0x%08lx r8: 0x%08lx r9: 0x%08lx\n",
2ce36bfa	288	fp->regs[0], fp->regs[1], fp->regs[2], fp->regs[3]);
8f4f1639	289	pr_info("r10: 0x%08lx r11: 0x%08lx r12: 0x%08lx r13: 0x%08lx\n",
2ce36bfa	290	fp->regs[4], fp->regs[5], fp->regs[6], fp->regs[7]);
8f4f1639	291	pr_info("r14: 0x%08lx r1: 0x%08lx r15: 0x%08lx\n",
2ce36bfa GR	292	fp->regs[8], fp->regs[9], fp->lr);
	293	#endif
	294
	295	pr_info("\nCODE:");
	296	tp = ((unsigned char *) fp->pc) - 0x20;
	297	tp += ((int)tp % 4) ? 2 : 0;
	298	for (sp = (unsigned long *) tp, i = 0; (i < 0x40); i += 4) {
	299	if ((i % 0x10) == 0)
	300	pr_cont("\n%08x: ", (int) (tp + i));
	301	pr_cont("%08x ", (int) *sp++);
	302	}
	303	pr_cont("\n");
	304
	305	pr_info("\nKERNEL STACK:");
	306	tp = ((unsigned char *) fp) - 0x40;
	307	for (sp = (unsigned long *) tp, i = 0; (i < 0xc0); i += 4) {
	308	if ((i % 0x10) == 0)
	309	pr_cont("\n%08x: ", (int) (tp + i));
	310	pr_cont("%08x ", (int) *sp++);
	311	}
	312	pr_cont("\n");
8f4f1639 GR	313
	314	show_stack(NULL, (unsigned long *)fp->regs[4]);
	315	return;
2ce36bfa	316	}