[mirror_ubuntu-eoan-kernel.git] / arch / powerpc / kernel / ptrace.c

/*
 *  PowerPC version
 *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
 *
 *  Derived from "arch/m68k/kernel/ptrace.c"
 *  Copyright (C) 1994 by Hamish Macdonald
 *  Taken from linux/kernel/ptrace.c and modified for M680x0.
 *  linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds
 *
 * Modified by Cort Dougan (cort@hq.fsmlabs.com)
 * and Paul Mackerras (paulus@samba.org).
 *
 * This file is subject to the terms and conditions of the GNU General
 * Public License.  See the file README.legal in the main directory of
 * this archive for more details.
 */

#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/errno.h>
#include <linux/ptrace.h>
#include <linux/user.h>
#include <linux/security.h>
#include <linux/signal.h>
#include <linux/seccomp.h>
#include <linux/audit.h>
#ifdef CONFIG_PPC32
#include <linux/module.h>
#endif

#include <asm/uaccess.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/system.h>

#ifdef CONFIG_PPC64
#include "ptrace-ppc64.h"
#else
#include "ptrace-ppc32.h"
#endif

#include "ptrace-common.h"

/*
 * does not yet catch signals sent when the child dies.
 * in exit.c or in signal.c.
 */

/*
 * Called by kernel/ptrace.c when detaching..
 *
 * Make sure single step bits etc are not set.
 */
void ptrace_disable(struct task_struct *child)
{
	/* make sure the single step bit is not set. */
	clear_single_step(child);
}

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

	switch (request) {
	/* when I and D space are separate, these will need to be fixed. */
	case PTRACE_PEEKTEXT: /* read word at location addr. */
	case PTRACE_PEEKDATA: {
		unsigned long tmp;
		int copied;

		copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
		ret = -EIO;
		if (copied != sizeof(tmp))
			break;
		ret = put_user(tmp,(unsigned long __user *) data);
		break;
	}

	/* read the word at location addr in the USER area. */
	case PTRACE_PEEKUSR: {
		unsigned long index, tmp;

		ret = -EIO;
		/* convert to index and check */
#ifdef CONFIG_PPC32
		index = (unsigned long) addr >> 2;
		if ((addr & 3) || (index > PT_FPSCR)
		    || (child->thread.regs == NULL))
#else
		index = (unsigned long) addr >> 3;
		if ((addr & 7) || (index > PT_FPSCR))
#endif
			break;

#ifdef CONFIG_PPC32
		CHECK_FULL_REGS(child->thread.regs);
#endif
		if (index < PT_FPR0) {
			tmp = get_reg(child, (int) index);
		} else {
			flush_fp_to_thread(child);
			tmp = ((unsigned long *)child->thread.fpr)[index - PT_FPR0];
		}
		ret = put_user(tmp,(unsigned long __user *) data);
		break;
	}

	/* If I and D space are separate, this will have to be fixed. */
	case PTRACE_POKETEXT: /* write the word at location addr. */
	case PTRACE_POKEDATA:
		ret = 0;
		if (access_process_vm(child, addr, &data, sizeof(data), 1)
				== sizeof(data))
			break;
		ret = -EIO;
		break;

	/* write the word at location addr in the USER area */
	case PTRACE_POKEUSR: {
		unsigned long index;

		ret = -EIO;
		/* convert to index and check */
#ifdef CONFIG_PPC32
		index = (unsigned long) addr >> 2;
		if ((addr & 3) || (index > PT_FPSCR)
		    || (child->thread.regs == NULL))
#else
		index = (unsigned long) addr >> 3;
		if ((addr & 7) || (index > PT_FPSCR))
#endif
			break;

#ifdef CONFIG_PPC32
		CHECK_FULL_REGS(child->thread.regs);
#endif
		if (index == PT_ORIG_R3)
			break;
		if (index < PT_FPR0) {
			ret = put_reg(child, index, data);
		} else {
			flush_fp_to_thread(child);
			((unsigned long *)child->thread.fpr)[index - PT_FPR0] = data;
			ret = 0;
		}
		break;
	}

	case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
	case PTRACE_CONT: { /* restart after signal. */
		ret = -EIO;
		if (!valid_signal(data))
			break;
		if (request == PTRACE_SYSCALL)
			set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
		else
			clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
		child->exit_code = data;
		/* make sure the single step bit is not set. */
		clear_single_step(child);
		wake_up_process(child);
		ret = 0;
		break;
	}

/*
 * make the child exit.  Best I can do is send it a sigkill.
 * perhaps it should be put in the status that it wants to
 * exit.
 */
	case PTRACE_KILL: {
		ret = 0;
		if (child->exit_state == EXIT_ZOMBIE)	/* already dead */
			break;
		child->exit_code = SIGKILL;
		/* make sure the single step bit is not set. */
		clear_single_step(child);
		wake_up_process(child);
		break;
	}

	case PTRACE_SINGLESTEP: {  /* set the trap flag. */
		ret = -EIO;
		if (!valid_signal(data))
			break;
		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
		set_single_step(child);
		child->exit_code = data;
		/* give it a chance to run. */
		wake_up_process(child);
		ret = 0;
		break;
	}

#ifdef CONFIG_PPC64
	case PTRACE_GET_DEBUGREG: {
		ret = -EINVAL;
		/* We only support one DABR and no IABRS at the moment */
		if (addr > 0)
			break;
		ret = put_user(child->thread.dabr,
			       (unsigned long __user *)data);
		break;
	}

	case PTRACE_SET_DEBUGREG:
		ret = ptrace_set_debugreg(child, addr, data);
		break;
#endif

	case PTRACE_DETACH:
		ret = ptrace_detach(child, data);
		break;

	case PPC_PTRACE_GETREGS: { /* Get GPRs 0 - 31. */
		int i;
		unsigned long *reg = &((unsigned long *)child->thread.regs)[0];
		unsigned long __user *tmp = (unsigned long __user *)addr;

		for (i = 0; i < 32; i++) {
			ret = put_user(*reg, tmp);
			if (ret)
				break;
			reg++;
			tmp++;
		}
		break;
	}

	case PPC_PTRACE_SETREGS: { /* Set GPRs 0 - 31. */
		int i;
		unsigned long *reg = &((unsigned long *)child->thread.regs)[0];
		unsigned long __user *tmp = (unsigned long __user *)addr;

		for (i = 0; i < 32; i++) {
			ret = get_user(*reg, tmp);
			if (ret)
				break;
			reg++;
			tmp++;
		}
		break;
	}

#ifdef CONFIG_PPC64
	case PPC_PTRACE_GETFPREGS: { /* Get FPRs 0 - 31. */
		int i;
		unsigned long *reg = &((unsigned long *)child->thread.fpr)[0];
		unsigned long __user *tmp = (unsigned long __user *)addr;

		flush_fp_to_thread(child);

		for (i = 0; i < 32; i++) {
			ret = put_user(*reg, tmp);
			if (ret)
				break;
			reg++;
			tmp++;
		}
		break;
	}

	case PPC_PTRACE_SETFPREGS: { /* Get FPRs 0 - 31. */
		int i;
		unsigned long *reg = &((unsigned long *)child->thread.fpr)[0];
		unsigned long __user *tmp = (unsigned long __user *)addr;

		flush_fp_to_thread(child);

		for (i = 0; i < 32; i++) {
			ret = get_user(*reg, tmp);
			if (ret)
				break;
			reg++;
			tmp++;
		}
		break;
	}
#endif /* CONFIG_PPC64 */

#ifdef CONFIG_ALTIVEC
	case PTRACE_GETVRREGS:
		/* Get the child altivec register state. */
		flush_altivec_to_thread(child);
		ret = get_vrregs((unsigned long __user *)data, child);
		break;

	case PTRACE_SETVRREGS:
		/* Set the child altivec register state. */
		flush_altivec_to_thread(child);
		ret = set_vrregs(child, (unsigned long __user *)data);
		break;
#endif
#ifdef CONFIG_SPE
	case PTRACE_GETEVRREGS:
		/* Get the child spe register state. */
		if (child->thread.regs->msr & MSR_SPE)
			giveup_spe(child);
		ret = get_evrregs((unsigned long __user *)data, child);
		break;

	case PTRACE_SETEVRREGS:
		/* Set the child spe register state. */
		/* this is to clear the MSR_SPE bit to force a reload
		 * of register state from memory */
		if (child->thread.regs->msr & MSR_SPE)
			giveup_spe(child);
		ret = set_evrregs(child, (unsigned long __user *)data);
		break;
#endif

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

	return ret;
}

static void do_syscall_trace(void)
{
	/* the 0x80 provides a way for the tracing parent to distinguish
	   between a syscall stop and SIGTRAP delivery */
	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
				 ? 0x80 : 0));

	/*
	 * this isn't the same as continuing with a signal, but it will do
	 * for normal use.  strace only continues with a signal if the
	 * stopping signal is not SIGTRAP.  -brl
	 */
	if (current->exit_code) {
		send_sig(current->exit_code, current, 1);
		current->exit_code = 0;
	}
}

void do_syscall_trace_enter(struct pt_regs *regs)
{
	secure_computing(regs->gpr[0]);

	if (test_thread_flag(TIF_SYSCALL_TRACE)
	    && (current->ptrace & PT_PTRACED))
		do_syscall_trace();

	if (unlikely(current->audit_context)) {
#ifdef CONFIG_PPC64
		if (!test_thread_flag(TIF_32BIT))
			audit_syscall_entry(AUDIT_ARCH_PPC64,
					    regs->gpr[0],
					    regs->gpr[3], regs->gpr[4],
					    regs->gpr[5], regs->gpr[6]);
		else
#endif
			audit_syscall_entry(AUDIT_ARCH_PPC,
					    regs->gpr[0],
					    regs->gpr[3] & 0xffffffff,
					    regs->gpr[4] & 0xffffffff,
					    regs->gpr[5] & 0xffffffff,
					    regs->gpr[6] & 0xffffffff);
	}
}

void do_syscall_trace_leave(struct pt_regs *regs)
{
	if (unlikely(current->audit_context))
		audit_syscall_exit((regs->ccr&0x10000000)?AUDITSC_FAILURE:AUDITSC_SUCCESS,
				   regs->result);

	if ((test_thread_flag(TIF_SYSCALL_TRACE)
	     || test_thread_flag(TIF_SINGLESTEP))
	    && (current->ptrace & PT_PTRACED))
		do_syscall_trace();
}
Commit	Line	Data
1da177e4	1	/*
1da177e4 LT	2	* PowerPC version
	3	* Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
	4	*
	5	* Derived from "arch/m68k/kernel/ptrace.c"
	6	* Copyright (C) 1994 by Hamish Macdonald
	7	* Taken from linux/kernel/ptrace.c and modified for M680x0.
	8	* linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds
	9	*
	10	* Modified by Cort Dougan (cort@hq.fsmlabs.com)
b123923d	11	* and Paul Mackerras (paulus@samba.org).
1da177e4 LT	12	*
	13	* This file is subject to the terms and conditions of the GNU General
	14	* Public License. See the file README.legal in the main directory of
	15	* this archive for more details.
	16	*/
	17
	18	#include <linux/kernel.h>
	19	#include <linux/sched.h>
	20	#include <linux/mm.h>
	21	#include <linux/smp.h>
1da177e4 LT	22	#include <linux/errno.h>
	23	#include <linux/ptrace.h>
	24	#include <linux/user.h>
	25	#include <linux/security.h>
7ed20e1a	26	#include <linux/signal.h>
ea9c102c DW	27	#include <linux/seccomp.h>
ea9c102c DW	28	#include <linux/audit.h>
e8a30302	29	#ifdef CONFIG_PPC32
ea9c102c	30	#include <linux/module.h>
e8a30302	31	#endif
1da177e4 LT	32
	33	#include <asm/uaccess.h>
	34	#include <asm/page.h>
	35	#include <asm/pgtable.h>
	36	#include <asm/system.h>
21a62902	37
e8a30302	38	#ifdef CONFIG_PPC64
acd89828	39	#include "ptrace-ppc64.h"
1da177e4	40	#else
acd89828	41	#include "ptrace-ppc32.h"
1da177e4	42	#endif
acd89828 BH	43
acd89828 BH	44	#include "ptrace-common.h"
1da177e4 LT	45
	46	/*
	47	* does not yet catch signals sent when the child dies.
	48	* in exit.c or in signal.c.
	49	*/
	50
1da177e4 LT	51	/*
	52	* Called by kernel/ptrace.c when detaching..
	53	*
	54	* Make sure single step bits etc are not set.
	55	*/
	56	void ptrace_disable(struct task_struct *child)
	57	{
	58	/* make sure the single step bit is not set. */
	59	clear_single_step(child);
	60	}
	61
481bed45	62	long arch_ptrace(struct task_struct *child, long request, long addr, long data)
1da177e4	63	{
1da177e4 LT	64	int ret = -EPERM;
1da177e4 LT	65
1da177e4 LT	66	switch (request) {
	67	/* when I and D space are separate, these will need to be fixed. */
	68	case PTRACE_PEEKTEXT: /* read word at location addr. */
	69	case PTRACE_PEEKDATA: {
	70	unsigned long tmp;
	71	int copied;
	72
	73	copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
	74	ret = -EIO;
	75	if (copied != sizeof(tmp))
	76	break;
	77	ret = put_user(tmp,(unsigned long __user *) data);
	78	break;
	79	}
	80
	81	/* read the word at location addr in the USER area. */
1da177e4 LT	82	case PTRACE_PEEKUSR: {
	83	unsigned long index, tmp;
	84
	85	ret = -EIO;
	86	/* convert to index and check */
e8a30302	87	#ifdef CONFIG_PPC32
1da177e4	88	index = (unsigned long) addr >> 2;
e8a30302 SR	89	if ((addr & 3) \|\| (index > PT_FPSCR)
	90	\|\| (child->thread.regs == NULL))
	91	#else
	92	index = (unsigned long) addr >> 3;
	93	if ((addr & 7) \|\| (index > PT_FPSCR))
	94	#endif
1da177e4 LT	95	break;
1da177e4 LT	96
e8a30302	97	#ifdef CONFIG_PPC32
1da177e4	98	CHECK_FULL_REGS(child->thread.regs);
e8a30302	99	#endif
1da177e4 LT	100	if (index < PT_FPR0) {
	101	tmp = get_reg(child, (int) index);
	102	} else {
e8a30302	103	flush_fp_to_thread(child);
1da177e4 LT	104	tmp = ((unsigned long *)child->thread.fpr)[index - PT_FPR0];
	105	}
	106	ret = put_user(tmp,(unsigned long __user *) data);
	107	break;
	108	}
	109
	110	/* If I and D space are separate, this will have to be fixed. */
	111	case PTRACE_POKETEXT: /* write the word at location addr. */
	112	case PTRACE_POKEDATA:
	113	ret = 0;
e8a30302 SR	114	if (access_process_vm(child, addr, &data, sizeof(data), 1)
e8a30302 SR	115	== sizeof(data))
1da177e4 LT	116	break;
	117	ret = -EIO;
	118	break;
	119
	120	/* write the word at location addr in the USER area */
	121	case PTRACE_POKEUSR: {
	122	unsigned long index;
	123
	124	ret = -EIO;
	125	/* convert to index and check */
e8a30302	126	#ifdef CONFIG_PPC32
1da177e4	127	index = (unsigned long) addr >> 2;
e8a30302 SR	128	if ((addr & 3) \|\| (index > PT_FPSCR)
	129	\|\| (child->thread.regs == NULL))
	130	#else
	131	index = (unsigned long) addr >> 3;
	132	if ((addr & 7) \|\| (index > PT_FPSCR))
	133	#endif
1da177e4 LT	134	break;
1da177e4 LT	135
e8a30302	136	#ifdef CONFIG_PPC32
1da177e4	137	CHECK_FULL_REGS(child->thread.regs);
e8a30302	138	#endif
1da177e4 LT	139	if (index == PT_ORIG_R3)
	140	break;
	141	if (index < PT_FPR0) {
	142	ret = put_reg(child, index, data);
	143	} else {
e8a30302	144	flush_fp_to_thread(child);
1da177e4 LT	145	((unsigned long *)child->thread.fpr)[index - PT_FPR0] = data;
	146	ret = 0;
	147	}
	148	break;
	149	}
	150
	151	case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
	152	case PTRACE_CONT: { /* restart after signal. */
	153	ret = -EIO;
7ed20e1a	154	if (!valid_signal(data))
1da177e4	155	break;
e8a30302	156	if (request == PTRACE_SYSCALL)
1da177e4	157	set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
e8a30302	158	else
1da177e4	159	clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
1da177e4 LT	160	child->exit_code = data;
	161	/* make sure the single step bit is not set. */
	162	clear_single_step(child);
	163	wake_up_process(child);
	164	ret = 0;
	165	break;
	166	}
	167
	168	/*
	169	* make the child exit. Best I can do is send it a sigkill.
	170	* perhaps it should be put in the status that it wants to
	171	* exit.
	172	*/
	173	case PTRACE_KILL: {
	174	ret = 0;
	175	if (child->exit_state == EXIT_ZOMBIE) /* already dead */
	176	break;
	177	child->exit_code = SIGKILL;
	178	/* make sure the single step bit is not set. */
	179	clear_single_step(child);
	180	wake_up_process(child);
	181	break;
	182	}
	183
	184	case PTRACE_SINGLESTEP: { /* set the trap flag. */
	185	ret = -EIO;
7ed20e1a	186	if (!valid_signal(data))
1da177e4 LT	187	break;
	188	clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
	189	set_single_step(child);
	190	child->exit_code = data;
	191	/* give it a chance to run. */
	192	wake_up_process(child);
	193	ret = 0;
	194	break;
	195	}
	196
e8a30302 SR	197	#ifdef CONFIG_PPC64
	198	case PTRACE_GET_DEBUGREG: {
	199	ret = -EINVAL;
	200	/* We only support one DABR and no IABRS at the moment */
	201	if (addr > 0)
	202	break;
	203	ret = put_user(child->thread.dabr,
	204	(unsigned long __user *)data);
	205	break;
	206	}
	207
	208	case PTRACE_SET_DEBUGREG:
	209	ret = ptrace_set_debugreg(child, addr, data);
	210	break;
	211	#endif
	212
1da177e4 LT	213	case PTRACE_DETACH:
	214	ret = ptrace_detach(child, data);
	215	break;
	216
e8a30302 SR	217	case PPC_PTRACE_GETREGS: { /* Get GPRs 0 - 31. */
	218	int i;
	219	unsigned long reg = &((unsigned long )child->thread.regs)[0];
	220	unsigned long __user tmp = (unsigned long __user )addr;
	221
	222	for (i = 0; i < 32; i++) {
	223	ret = put_user(*reg, tmp);
	224	if (ret)
	225	break;
	226	reg++;
	227	tmp++;
	228	}
	229	break;
	230	}
	231
	232	case PPC_PTRACE_SETREGS: { /* Set GPRs 0 - 31. */
	233	int i;
	234	unsigned long reg = &((unsigned long )child->thread.regs)[0];
	235	unsigned long __user tmp = (unsigned long __user )addr;
	236
	237	for (i = 0; i < 32; i++) {
	238	ret = get_user(*reg, tmp);
	239	if (ret)
	240	break;
	241	reg++;
	242	tmp++;
	243	}
	244	break;
	245	}
	246
0b3d5c48	247	#ifdef CONFIG_PPC64
e8a30302 SR	248	case PPC_PTRACE_GETFPREGS: { /* Get FPRs 0 - 31. */
	249	int i;
	250	unsigned long reg = &((unsigned long )child->thread.fpr)[0];
	251	unsigned long __user tmp = (unsigned long __user )addr;
	252
	253	flush_fp_to_thread(child);
	254
	255	for (i = 0; i < 32; i++) {
	256	ret = put_user(*reg, tmp);
	257	if (ret)
	258	break;
	259	reg++;
	260	tmp++;
	261	}
	262	break;
	263	}
	264
	265	case PPC_PTRACE_SETFPREGS: { /* Get FPRs 0 - 31. */
	266	int i;
	267	unsigned long reg = &((unsigned long )child->thread.fpr)[0];
	268	unsigned long __user tmp = (unsigned long __user )addr;
	269
	270	flush_fp_to_thread(child);
	271
	272	for (i = 0; i < 32; i++) {
	273	ret = get_user(*reg, tmp);
	274	if (ret)
	275	break;
	276	reg++;
	277	tmp++;
	278	}
	279	break;
	280	}
0b3d5c48	281	#endif /* CONFIG_PPC64 */
e8a30302	282
1da177e4 LT	283	#ifdef CONFIG_ALTIVEC
	284	case PTRACE_GETVRREGS:
	285	/* Get the child altivec register state. */
e8a30302	286	flush_altivec_to_thread(child);
1da177e4 LT	287	ret = get_vrregs((unsigned long __user *)data, child);
	288	break;
	289
	290	case PTRACE_SETVRREGS:
	291	/* Set the child altivec register state. */
e8a30302	292	flush_altivec_to_thread(child);
1da177e4 LT	293	ret = set_vrregs(child, (unsigned long __user *)data);
	294	break;
	295	#endif
	296	#ifdef CONFIG_SPE
	297	case PTRACE_GETEVRREGS:
	298	/* Get the child spe register state. */
	299	if (child->thread.regs->msr & MSR_SPE)
	300	giveup_spe(child);
	301	ret = get_evrregs((unsigned long __user *)data, child);
	302	break;
	303
	304	case PTRACE_SETEVRREGS:
	305	/* Set the child spe register state. */
	306	/* this is to clear the MSR_SPE bit to force a reload
	307	* of register state from memory */
	308	if (child->thread.regs->msr & MSR_SPE)
	309	giveup_spe(child);
	310	ret = set_evrregs(child, (unsigned long __user *)data);
	311	break;
	312	#endif
	313
	314	default:
	315	ret = ptrace_request(child, request, addr, data);
	316	break;
	317	}
481bed45	318
1da177e4 LT	319	return ret;
	320	}
	321
ea9c102c	322	static void do_syscall_trace(void)
1da177e4	323	{
ea9c102c DW	324	/* the 0x80 provides a way for the tracing parent to distinguish
ea9c102c DW	325	between a syscall stop and SIGTRAP delivery */
1da177e4 LT	326	ptrace_notify(SIGTRAP \| ((current->ptrace & PT_TRACESYSGOOD)
	327	? 0x80 : 0));
	328
	329	/*
	330	* this isn't the same as continuing with a signal, but it will do
	331	* for normal use. strace only continues with a signal if the
	332	* stopping signal is not SIGTRAP. -brl
	333	*/
	334	if (current->exit_code) {
	335	send_sig(current->exit_code, current, 1);
	336	current->exit_code = 0;
	337	}
	338	}
ea9c102c DW	339
	340	void do_syscall_trace_enter(struct pt_regs *regs)
	341	{
e8a30302	342	secure_computing(regs->gpr[0]);
e8a30302	343
ea9c102c DW	344	if (test_thread_flag(TIF_SYSCALL_TRACE)
	345	&& (current->ptrace & PT_PTRACED))
	346	do_syscall_trace();
	347
cfcd1705 DW	348	if (unlikely(current->audit_context)) {
	349	#ifdef CONFIG_PPC64
	350	if (!test_thread_flag(TIF_32BIT))
	351	audit_syscall_entry(AUDIT_ARCH_PPC64,
	352	regs->gpr[0],
	353	regs->gpr[3], regs->gpr[4],
	354	regs->gpr[5], regs->gpr[6]);
	355	else
e8a30302	356	#endif
cfcd1705 DW	357	audit_syscall_entry(AUDIT_ARCH_PPC,
	358	regs->gpr[0],
	359	regs->gpr[3] & 0xffffffff,
	360	regs->gpr[4] & 0xffffffff,
	361	regs->gpr[5] & 0xffffffff,
	362	regs->gpr[6] & 0xffffffff);
	363	}
ea9c102c DW	364	}
	365
	366	void do_syscall_trace_leave(struct pt_regs *regs)
	367	{
ea9c102c	368	if (unlikely(current->audit_context))
4b9c876a	369	audit_syscall_exit((regs->ccr&0x10000000)?AUDITSC_FAILURE:AUDITSC_SUCCESS,
ea9c102c DW	370	regs->result);
ea9c102c DW	371
e8a30302	372	if ((test_thread_flag(TIF_SYSCALL_TRACE)
1bd79336	373	\|\| test_thread_flag(TIF_SINGLESTEP))
ea9c102c DW	374	&& (current->ptrace & PT_PTRACED))
	375	do_syscall_trace();
	376	}