C++ ptrace_request函数代码示例

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本文整理汇总了C++中ptrace_request函数的典型用法代码示例。如果您正苦于以下问题：C++ ptrace_request函数的具体用法？C++ ptrace_request怎么用？C++ ptrace_request使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了ptrace_request函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: arch_ptrace

long arch_ptrace(struct task_struct *child, long request,
		 unsigned long addr, unsigned long data)
{
	int ret;
	unsigned long __user *datap = (unsigned long __user *) data;

	switch (request) {
	case PTRACE_PEEKUSR:
		ret = ptrace_read_user(child, addr, datap);
		break;

	case PTRACE_POKEUSR:
		ret = ptrace_write_user(child, addr, data);
		break;

	case PTRACE_GET_THREAD_AREA:
		ret = put_user(task_pt_regs(child)->UCreg_16,
			       datap);
		break;

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

	return ret;
}

开发者ID:DirtyDroidX，项目名称:android_kernel_htc_m8ul，代码行数:27，代码来源:ptrace.c

示例2: arch_ptrace

long arch_ptrace(struct task_struct *child, long request,
		 unsigned long addr, unsigned long data)
{
	int rval;
	unsigned long val = 0;

	switch (request) {
	/* Read/write the word at location ADDR in the registers. */
	case PTRACE_PEEKUSR:
	case PTRACE_POKEUSR:
		pr_debug("PEEKUSR/POKEUSR : 0x%08lx\n", addr);
		rval = 0;
		if (addr >= PT_SIZE && request == PTRACE_PEEKUSR) {
			/*
			 * Special requests that don't actually correspond
			 * to offsets in struct pt_regs.
			 */
			if (addr == PT_TEXT_ADDR) {
				val = child->mm->start_code;
			} else if (addr == PT_DATA_ADDR) {
				val = child->mm->start_data;
			} else if (addr == PT_TEXT_LEN) {
				val = child->mm->end_code
					- child->mm->start_code;
			} else {
				rval = -EIO;
			}
		} else if (addr < PT_SIZE && (addr & 0x3) == 0) {
			microblaze_reg_t *reg_addr = reg_save_addr(addr, child);
			if (request == PTRACE_PEEKUSR)
				val = *reg_addr;
			else {
#if 1
				*reg_addr = data;
#else
				/* MS potential problem on WB system
				 * Be aware that reg_addr is virtual address
				 * virt_to_phys conversion is necessary.
				 * This could be sensible solution.
				 */
				u32 paddr = virt_to_phys((u32)reg_addr);
				invalidate_icache_range(paddr, paddr + 4);
				*reg_addr = data;
				flush_dcache_range(paddr, paddr + 4);
#endif
			}
		} else
			rval = -EIO;

		if (rval == 0 && request == PTRACE_PEEKUSR)
			rval = put_user(val, (unsigned long __user *)data);
		break;
	default:
		rval = ptrace_request(child, request, addr, data);
	}
	return rval;
}

开发者ID:007kumarraja，项目名称:rockchip-rk3188-mk908，代码行数:57，代码来源:ptrace.c

示例3: arch_ptrace

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

	switch (request) {

	case PTRACE_PEEKUSR:
		if ((addr & (sizeof(unsigned long)-1)) ||
		     addr >= sizeof(struct pt_regs))
			break;
		tmp = *(unsigned long *) ((char *) task_regs(child) + addr);
		ret = put_user(tmp, (unsigned long __user *) data);
		break;

	/* Write the word at location addr in the USER area.  This will need
	   to change when the kernel no longer saves all regs on a syscall.
	   FIXME.  There is a problem at the moment in that r3-r18 are only
	   saved if the process is ptraced on syscall entry, and even then
	   those values are overwritten by actual register values on syscall
	   exit. */
	case PTRACE_POKEUSR:
		/* Some register values written here may be ignored in
		 * entry.S:syscall_restore_rfi; e.g. iaoq is written with
		 * r31/r31+4, and not with the values in pt_regs.
		 */
		if (addr == PT_PSW) {
			data &= USER_PSW_BITS;
			task_regs(child)->gr[0] &= ~USER_PSW_BITS;
			task_regs(child)->gr[0] |= data;
			ret = 0;
			break;
		}

		if ((addr & (sizeof(unsigned long)-1)) ||
		     addr >= sizeof(struct pt_regs))
			break;
		if ((addr >= PT_GR1 && addr <= PT_GR31) ||
				addr == PT_IAOQ0 || addr == PT_IAOQ1 ||
				(addr >= PT_FR0 && addr <= PT_FR31 + 4) ||
				addr == PT_SAR) {
			*(unsigned long *) ((char *) task_regs(child) + addr) = data;
			ret = 0;
		}
		break;

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

	return ret;
}

开发者ID:Blackburn29，项目名称:PsycoKernel，代码行数:54，代码来源:ptrace.c

示例4: arch_ptrace

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

	switch (request) {

	/* Read the word at location addr in the USER area.  For ptraced
	   processes, the kernel saves all regs on a syscall. */
	case PTRACE_PEEKUSR:
		if ((addr & (sizeof(long)-1)) ||
		    (unsigned long) addr >= sizeof(struct pt_regs))
			break;
		tmp = *(unsigned long *) ((char *) task_regs(child) + addr);
		ret = put_user(tmp, (unsigned long *) data);
		break;

	case PTRACE_POKEUSR:
		/* Some register values written here may be ignored in
		 * entry.S:syscall_restore_rfi; e.g. iaoq is written with
		 * r31/r31+4, and not with the values in pt_regs.
		 */
		if (addr == PT_PSW) {
			/* Allow writing to Nullify, Divide-step-correction,
			 * and carry/borrow bits.
			 * BEWARE, if you set N, and then single step, it won't
			 * stop on the nullified instruction.
			 */
			data &= USER_PSW_BITS;
			task_regs(child)->gr[0] &= ~USER_PSW_BITS;
			task_regs(child)->gr[0] |= data;
			ret = 0;
			break;
		}

		if ((addr & (sizeof(long)-1)) ||
		    (unsigned long) addr >= sizeof(struct pt_regs))
			break;
		if ((addr >= PT_GR1 && addr <= PT_GR31) ||
				addr == PT_IAOQ0 || addr == PT_IAOQ1 ||
				(addr >= PT_FR0 && addr <= PT_FR31 + 4) ||
				addr == PT_SAR) {
			*(unsigned long *) ((char *) task_regs(child) + addr) = data;
			ret = 0;
		}
		break;

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

	return ret;
}

开发者ID:1703011，项目名称:asuswrt-merlin，代码行数:54，代码来源:ptrace.c

示例5: arch_ptrace

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

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

开发者ID:0-T-0，项目名称:ps4-linux，代码行数:12，代码来源:ptrace.c

示例6: compat_ptrace_request

int compat_ptrace_request(struct task_struct *child, compat_long_t request,
			  compat_ulong_t addr, compat_ulong_t data)
{
	compat_ulong_t __user *datap = compat_ptr(data);
	compat_ulong_t word;
	siginfo_t siginfo;
	int ret;

	switch (request) {
	case PTRACE_PEEKTEXT:
	case PTRACE_PEEKDATA:
		ret = access_process_vm(child, addr, &word, sizeof(word), 0);
		if (ret != sizeof(word))
			ret = -EIO;
		else
			ret = put_user(word, datap);
		break;

	case PTRACE_POKETEXT:
	case PTRACE_POKEDATA:
		ret = access_process_vm(child, addr, &data, sizeof(data), 1);
		ret = (ret != sizeof(data) ? -EIO : 0);
		break;

	case PTRACE_GETEVENTMSG:
		ret = put_user((compat_ulong_t) child->ptrace_message, datap);
		break;

	case PTRACE_GETSIGINFO:
		ret = ptrace_getsiginfo(child, &siginfo);
		if (!ret)
			ret = copy_siginfo_to_user32(
				(struct compat_siginfo __user *) datap,
				&siginfo);
		break;

	case PTRACE_SETSIGINFO:
		memset(&siginfo, 0, sizeof siginfo);
		if (copy_siginfo_from_user32(
			    &siginfo, (struct compat_siginfo __user *) datap))
			ret = -EFAULT;
		else
			ret = ptrace_setsiginfo(child, &siginfo);
		break;

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

	return ret;
}

开发者ID:achristensen3，项目名称:cm-kernel，代码行数:51，代码来源:ptrace.c

示例7: arch_ptrace

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

	switch (request) {
		case PTRACE_SET_SYSCALL:
			task_pt_regs(child)->syscallno = data;
			ret = 0;
			break;
		default:
			ret = ptrace_request(child, request, addr, data);
			break;
	}

	return ret;
}

开发者ID:BeastOn，项目名称:yu_msm8916，代码行数:17，代码来源:ptrace.c

示例8: arch_ptrace

long arch_ptrace(struct task_struct *child, long request, long addr, long data)
{
	int rval;
	unsigned long val = 0;

	switch (request) {
	/* Read/write the word at location ADDR in the registers. */
	case PTRACE_PEEKUSR:
	case PTRACE_POKEUSR:
		pr_debug("PEEKUSR/POKEUSR : 0x%08lx\n", addr);
		rval = 0;
		if (addr >= PT_SIZE && request == PTRACE_PEEKUSR) {
			/*
			 * Special requests that don't actually correspond
			 * to offsets in struct pt_regs.
			 */
			if (addr == PT_TEXT_ADDR) {
				val = child->mm->start_code;
			} else if (addr == PT_DATA_ADDR) {
				val = child->mm->start_data;
			} else if (addr == PT_TEXT_LEN) {
				val = child->mm->end_code
					- child->mm->start_code;
			} else {
				rval = -EIO;
			}
		} else if (addr >= 0 && addr < PT_SIZE && (addr & 0x3) == 0) {
			microblaze_reg_t *reg_addr = reg_save_addr(addr, child);
			if (request == PTRACE_PEEKUSR)
				val = *reg_addr;
			else
				*reg_addr = data;
		} else
			rval = -EIO;

		if (rval == 0 && request == PTRACE_PEEKUSR)
			rval = put_user(val, (unsigned long *)data);
		break;
	default:
		rval = ptrace_request(child, request, addr, data);
	}
	return rval;
}

开发者ID:Medvedroid，项目名称:OT_903D-kernel-2.6.35.7，代码行数:43，代码来源:ptrace.c

示例9: arch_ptrace

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

	pr_debug("REQ=%ld: ADDR =0x%lx, DATA=0x%lx)\n", request, addr, data);

	switch (request) {
	case PTRACE_GET_THREAD_AREA:
		ret = put_user(task_thread_info(child)->thr_ptr,
			       (unsigned long __user *)data);
		break;
	default:
		ret = ptrace_request(child, request, addr, data);
		break;
	}

	return ret;
}

开发者ID:0x000000FF，项目名称:Linux4Edison，代码行数:19，代码来源:ptrace.c

示例10: arch_ptrace

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

    switch (request) {
    /* Read the word at location addr in the child process */
    case PTRACE_PEEKTEXT:
    case PTRACE_PEEKDATA:
        ret = generic_ptrace_peekdata(child, addr, data);
        break;

    case PTRACE_PEEKUSR:
        ret = ptrace_read_user(child, addr,
                               (unsigned long __user *)data);
        break;

    /* Write the word in data at location addr */
    case PTRACE_POKETEXT:
    case PTRACE_POKEDATA:
        ret = generic_ptrace_pokedata(child, addr, data);
        break;

    case PTRACE_POKEUSR:
        ret = ptrace_write_user(child, addr, data);
        break;

    case PTRACE_GETREGS:
        ret = ptrace_getregs(child, (void __user *)data);
        break;

    case PTRACE_SETREGS:
        ret = ptrace_setregs(child, (const void __user *)data);
        break;

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

    return ret;
}

开发者ID:actiononmail，项目名称:linux-2.6，代码行数:41，代码来源:ptrace.c

示例11: arch_ptrace


//.........这里部分代码省略.........
			    && addr + sizeof(data) <= L1_DATA_B_START + L1_DATA_B_LENGTH) {
				memcpy((void *)(addr), &data, sizeof(data));
				copied = sizeof(data);

			} else if (addr >= FIXED_CODE_START
			    && addr + sizeof(data) <= FIXED_CODE_END) {
				copy_to_user_page(0, 0, 0, (void *)(addr), &data, sizeof(data));
				copied = sizeof(data);

			} else
				copied = access_process_vm(child, addr, &data,
							   sizeof(data), 1);

			pr_debug("ptrace: copied size %d\n", copied);
			if (copied != sizeof(data))
				break;
			ret = 0;
			break;
		}

	case PTRACE_POKEUSR:	/* write the word at location addr in the USER area */
		ret = -EIO;
		if ((addr & 3) || (addr > (sizeof(struct pt_regs) + 16))) {
			printk(KERN_WARNING "ptrace error : POKEUSR: temporarily returning 0\n");
			break;
		}

		if (addr >= (sizeof(struct pt_regs))) {
			ret = 0;
			break;
		}
		if (addr == PT_SYSCFG) {
			data &= SYSCFG_MASK;
			data |= get_reg(child, PT_SYSCFG);
		}
		ret = put_reg(child, addr, data);
		break;

	case PTRACE_SYSCALL:	/* continue and stop at next (return from) syscall */
	case PTRACE_CONT:	/* restart after signal. */
		pr_debug("ptrace: syscall/cont\n");

		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;
		ptrace_disable(child);
		pr_debug("ptrace: before wake_up_process\n");
		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;
		ptrace_disable(child);
		wake_up_process(child);
		break;

	case PTRACE_SINGLESTEP:	/* set the trap flag. */
		pr_debug("ptrace: single step\n");
		ret = -EIO;
		if (!valid_signal(data))
			break;
		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
		ptrace_enable(child);
		child->exit_code = data;
		wake_up_process(child);
		ret = 0;
		break;

	case PTRACE_GETREGS:
		/* Get all gp regs from the child. */
		ret = ptrace_getregs(child, datap);
		break;

	case PTRACE_SETREGS:
		printk(KERN_WARNING "ptrace: SETREGS: **** NOT IMPLEMENTED ***\n");
		/* Set all gp regs in the child. */
		ret = 0;
		break;

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

	return ret;
}

开发者ID:ysei，项目名称:linux-2.6.x，代码行数:101，代码来源:ptrace.c

示例12: sys_ptrace


//.........这里部分代码省略.........
		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 ((unsigned long) data > _NSIG)
			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;
	}

	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;
	}

	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;
	}

	default:
		ret = ptrace_request(child, request, addr, data);
		break;
	}
out_tsk:
	put_task_struct(child);
out:
	unlock_kernel();
	return ret;
}

开发者ID:GodFox，项目名称:magx_kernel_xpixl，代码行数:101，代码来源:ptrace.c

示例13: compat_ptrace_request

int compat_ptrace_request(struct task_struct *child, compat_long_t request,
			  compat_ulong_t addr, compat_ulong_t data)
{
	compat_ulong_t __user *datap = compat_ptr(data);
	compat_ulong_t word;
	siginfo_t siginfo;
	int ret;

	switch (request) {
	case PTRACE_PEEKTEXT:
	case PTRACE_PEEKDATA:
		ret = access_process_vm(child, addr, &word, sizeof(word), 0);
		if (ret != sizeof(word))
			ret = -EIO;
		else
			ret = put_user(word, datap);
		break;

	case PTRACE_POKETEXT:
	case PTRACE_POKEDATA:
		ret = access_process_vm(child, addr, &data, sizeof(data), 1);
		ret = (ret != sizeof(data) ? -EIO : 0);
		break;

	case PTRACE_GETEVENTMSG:
		ret = put_user((compat_ulong_t) child->ptrace_message, datap);
		break;

	case PTRACE_GETSIGINFO:
		ret = ptrace_getsiginfo(child, &siginfo);
		if (!ret)
			ret = copy_siginfo_to_user32(
				(struct compat_siginfo __user *) datap,
				&siginfo);
		break;

	case PTRACE_SETSIGINFO:
		memset(&siginfo, 0, sizeof siginfo);
		if (copy_siginfo_from_user32(
			    &siginfo, (struct compat_siginfo __user *) datap))
			ret = -EFAULT;
		else
			ret = ptrace_setsiginfo(child, &siginfo);
		break;
#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
	case PTRACE_GETREGSET:
	case PTRACE_SETREGSET:
	{
		struct iovec kiov;
		struct compat_iovec __user *uiov =
			(struct compat_iovec __user *) datap;
		compat_uptr_t ptr;
		compat_size_t len;

		if (!access_ok(VERIFY_WRITE, uiov, sizeof(*uiov)))
			return -EFAULT;

		if (__get_user(ptr, &uiov->iov_base) ||
		    __get_user(len, &uiov->iov_len))
			return -EFAULT;

		kiov.iov_base = compat_ptr(ptr);
		kiov.iov_len = len;

		ret = ptrace_regset(child, request, addr, &kiov);
		if (!ret)
			ret = __put_user(kiov.iov_len, &uiov->iov_len);
		break;
	}
#endif

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

	return ret;
}

开发者ID:grzmot22，项目名称:android_kernel_hp_pine，代码行数:77，代码来源:ptrace.c

示例14: arch_ptrace


//.........这里部分代码省略.........
			break;
		case FPR_BASE ... FPR_BASE + 31: {
			union fpureg *fregs = get_fpu_regs(child);

			init_fp_ctx(child);
#ifdef CONFIG_32BIT
			if (test_tsk_thread_flag(child, TIF_32BIT_FPREGS)) {
				/*
				 * The odd registers are actually the high
				 * order bits of the values stored in the even
				 * registers.
				 */
				set_fpr32(&fregs[(addr & ~1) - FPR_BASE],
					  addr & 1, data);
				break;
			}
#endif
			set_fpr64(&fregs[addr - FPR_BASE], 0, data);
			break;
		}
		case PC:
			regs->cp0_epc = data;
			break;
		case MMHI:
			regs->hi = data;
			break;
		case MMLO:
			regs->lo = data;
			break;
#ifdef CONFIG_CPU_HAS_SMARTMIPS
		case ACX:
			regs->acx = data;
			break;
#endif
		case FPC_CSR:
			init_fp_ctx(child);
			ptrace_setfcr31(child, data);
			break;
		case DSP_BASE ... DSP_BASE + 5: {
			dspreg_t *dregs;

			if (!cpu_has_dsp) {
				ret = -EIO;
				break;
			}

			dregs = __get_dsp_regs(child);
			dregs[addr - DSP_BASE] = data;
			break;
		}
		case DSP_CONTROL:
			if (!cpu_has_dsp) {
				ret = -EIO;
				break;
			}
			child->thread.dsp.dspcontrol = data;
			break;
		default:
			/* The rest are not allowed. */
			ret = -EIO;
			break;
		}
		break;
		}

	case PTRACE_GETREGS:
		ret = ptrace_getregs(child, datavp);
		break;

	case PTRACE_SETREGS:
		ret = ptrace_setregs(child, datavp);
		break;

	case PTRACE_GETFPREGS:
		ret = ptrace_getfpregs(child, datavp);
		break;

	case PTRACE_SETFPREGS:
		ret = ptrace_setfpregs(child, datavp);
		break;

	case PTRACE_GET_THREAD_AREA:
		ret = put_user(task_thread_info(child)->tp_value, datalp);
		break;

	case PTRACE_GET_WATCH_REGS:
		ret = ptrace_get_watch_regs(child, addrp);
		break;

	case PTRACE_SET_WATCH_REGS:
		ret = ptrace_set_watch_regs(child, addrp);
		break;

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

开发者ID:0x7f454c46，项目名称:linux，代码行数:101，代码来源:ptrace.c

示例15: sys_ptrace


//.........这里部分代码省略.........
	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;
	}

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

#ifdef CONFIG_ALTIVEC
	case PTRACE_GETVRREGS:
		/* Get the child altivec register state. */
		preempt_disable();
		if (child->thread.regs->msr & MSR_VEC)
			giveup_altivec(child);
		preempt_enable();
		ret = get_vrregs((unsigned long __user *)data, child);
		break;

	case PTRACE_SETVRREGS:
		/* Set the child altivec register state. */
		/* this is to clear the MSR_VEC bit to force a reload
		 * of register state from memory */
		preempt_disable();
		if (child->thread.regs->msr & MSR_VEC)
			giveup_altivec(child);
		preempt_enable();
		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;
	}
out_tsk:
	put_task_struct(child);
out:
	unlock_kernel();
	return ret;
}

开发者ID:kzlin129，项目名称:tt-gpl，代码行数:101，代码来源:ptrace.c

示例16: do_ptrace


//.........这里部分代码省略.........
			if ((child->thread_info->flags & _TIF_32BIT) != 0)
				pc_mask = 0xffffffff;

			if (addr & 3) {
				pt_error_return(regs, EINVAL);
				goto out_tsk;
			}
#ifdef DEBUG_PTRACE
			printk ("Original: %016lx %016lx\n",
				child->thread_info->kregs->tpc,
				child->thread_info->kregs->tnpc);
			printk ("Continuing with %016lx %016lx\n", addr, addr+4);
#endif
			child->thread_info->kregs->tpc = (addr & pc_mask);
			child->thread_info->kregs->tnpc = ((addr + 4) & pc_mask);
		}

		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;
#ifdef DEBUG_PTRACE
		printk("CONT: %s [%d]: set exit_code = %x %lx %lx\n", child->comm,
			child->pid, child->exit_code,
			child->thread_info->kregs->tpc,
			child->thread_info->kregs->tnpc);
		       
#endif
		wake_up_process(child);
		pt_succ_return(regs, 0);
		goto out_tsk;
	}

/*
 * 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: {
		if (child->state == TASK_ZOMBIE) {	/* already dead */
			pt_succ_return(regs, 0);
			goto out_tsk;
		}
		child->exit_code = SIGKILL;
		wake_up_process(child);
		pt_succ_return(regs, 0);
		goto out_tsk;
	}

	case PTRACE_SUNDETACH: { /* detach a process that was attached. */
		int error = ptrace_detach(child, data);
		if (error) {
			pt_error_return(regs, EIO);
			goto out_tsk;
		}
		pt_succ_return(regs, 0);
		goto out_tsk;
	}

	/* PTRACE_DUMPCORE unsupported... */

	default: {
		int err = ptrace_request(child, request, addr, data);
		if (err)
			pt_error_return(regs, -err);
		else
			pt_succ_return(regs, 0);
		goto out_tsk;
	}
	}
flush_and_out:
	{
		unsigned long va;

		if (tlb_type == cheetah || tlb_type == cheetah_plus) {
			for (va = 0; va < (1 << 16); va += (1 << 5))
				spitfire_put_dcache_tag(va, 0x0);
			/* No need to mess with I-cache on Cheetah. */
		} else {
			for (va =  0; va < L1DCACHE_SIZE; va += 32)
				spitfire_put_dcache_tag(va, 0x0);
			if (request == PTRACE_PEEKTEXT ||
			    request == PTRACE_POKETEXT ||
			    request == PTRACE_READTEXT ||
			    request == PTRACE_WRITETEXT) {
				for (va =  0; va < (PAGE_SIZE << 1); va += 32)
					spitfire_put_icache_tag(va, 0x0);
				__asm__ __volatile__("flush %g6");
			}
		}
	}
out_tsk:
	if (child)
		put_task_struct(child);
out:
	unlock_kernel();
}

开发者ID:12019，项目名称:hg556a_source，代码行数:101，代码来源:ptrace.c

示例17: arch_ptrace


//.........这里部分代码省略.........
		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;
	}

	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;
	}

#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;
}

开发者ID:ivucica，项目名称:linux，代码行数:101，代码来源:ptrace.c

示例18: arch_ptrace

long arch_ptrace(struct task_struct *child, long request,
		 unsigned long addr, unsigned long data)
{
	unsigned long __user *datap = (long __user __force *)data;
	unsigned long tmp;
	long ret = -EIO;
	char *childreg;
	struct pt_regs copyregs;
	int ex1_offset;

	switch (request) {

	case PTRACE_PEEKUSR:  /*                             */
		if (addr >= PTREGS_SIZE)
			break;
		childreg = (char *)task_pt_regs(child) + addr;
#ifdef CONFIG_COMPAT
		if (is_compat_task()) {
			if (addr & (sizeof(compat_long_t)-1))
				break;
			ret = put_user(*(compat_long_t *)childreg,
				       (compat_long_t __user *)datap);
		} else
#endif
		{
			if (addr & (sizeof(long)-1))
				break;
			ret = put_user(*(long *)childreg, datap);
		}
		break;

	case PTRACE_POKEUSR:  /*                            */
		if (addr >= PTREGS_SIZE)
			break;
		childreg = (char *)task_pt_regs(child) + addr;

		/*                                                  */
		ex1_offset = PTREGS_OFFSET_EX1;
#if defined(CONFIG_COMPAT) && defined(__BIG_ENDIAN)
		if (is_compat_task())   /*                   */
			ex1_offset += sizeof(compat_long_t);
#endif
		if (addr == ex1_offset)
			data = PL_ICS_EX1(USER_PL, EX1_ICS(data));

#ifdef CONFIG_COMPAT
		if (is_compat_task()) {
			if (addr & (sizeof(compat_long_t)-1))
				break;
			*(compat_long_t *)childreg = data;
		} else
#endif
		{
			if (addr & (sizeof(long)-1))
				break;
			*(long *)childreg = data;
		}
		ret = 0;
		break;

	case PTRACE_GETREGS:  /*                                   */
		if (copy_to_user(datap, task_pt_regs(child),
				 sizeof(struct pt_regs)) == 0) {
			ret = 0;
		}
		break;

	case PTRACE_SETREGS:  /*                                 */
		if (copy_from_user(&copyregs, datap,
				   sizeof(struct pt_regs)) == 0) {
			copyregs.ex1 =
				PL_ICS_EX1(USER_PL, EX1_ICS(copyregs.ex1));
			*task_pt_regs(child) = copyregs;
			ret = 0;
		}
		break;

	case PTRACE_GETFPREGS:  /*                          */
	case PTRACE_SETFPREGS:  /*                          */
		break;

	case PTRACE_SETOPTIONS:
		/*                                       */
		child->ptrace &= ~PT_TRACE_MASK_TILE;
		tmp = data & PTRACE_O_MASK_TILE;
		data &= ~PTRACE_O_MASK_TILE;
		ret = ptrace_request(child, request, addr, data);
		if (tmp & PTRACE_O_TRACEMIGRATE)
			child->ptrace |= PT_TRACE_MIGRATE;
		break;

	default:
#ifdef CONFIG_COMPAT
		if (task_thread_info(current)->status & TS_COMPAT) {
			ret = compat_ptrace_request(child, request,
						    addr, data);
			break;
		}
#endif
		ret = ptrace_request(child, request, addr, data);
//.........这里部分代码省略.........

开发者ID:romanbb，项目名称:android_kernel_lge_d851，代码行数:101，代码来源:ptrace.c

示例19: arch_ptrace

long arch_ptrace(struct task_struct *child, long request,
		 unsigned long addr, unsigned long data)
{
	unsigned long addr2 = current->thread.kregs->u_regs[UREG_I4];
	void __user *addr2p;
	const struct user_regset_view *view;
	struct pt_regs __user *pregs;
	struct fps __user *fps;
	int ret;

	view = task_user_regset_view(current);
	addr2p = (void __user *) addr2;
	pregs = (struct pt_regs __user *) addr;
	fps = (struct fps __user *) addr;

	switch(request) {
	case PTRACE_GETREGS: {
		ret = copy_regset_to_user(child, view, REGSET_GENERAL,
					  32 * sizeof(u32),
					  4 * sizeof(u32),
					  &pregs->psr);
		if (!ret)
			copy_regset_to_user(child, view, REGSET_GENERAL,
					    1 * sizeof(u32),
					    15 * sizeof(u32),
					    &pregs->u_regs[0]);
		break;
	}

	case PTRACE_SETREGS: {
		ret = copy_regset_from_user(child, view, REGSET_GENERAL,
					    32 * sizeof(u32),
					    4 * sizeof(u32),
					    &pregs->psr);
		if (!ret)
			copy_regset_from_user(child, view, REGSET_GENERAL,
					      1 * sizeof(u32),
					      15 * sizeof(u32),
					      &pregs->u_regs[0]);
		break;
	}

	case PTRACE_GETFPREGS: {
		ret = copy_regset_to_user(child, view, REGSET_FP,
					  0 * sizeof(u32),
					  32 * sizeof(u32),
					  &fps->regs[0]);
		if (!ret)
			ret = copy_regset_to_user(child, view, REGSET_FP,
						  33 * sizeof(u32),
						  1 * sizeof(u32),
						  &fps->fsr);

		if (!ret) {
			if (__put_user(0, &fps->fpqd) ||
			    __put_user(0, &fps->flags) ||
			    __put_user(0, &fps->extra) ||
			    clear_user(fps->fpq, sizeof(fps->fpq)))
				ret = -EFAULT;
		}
		break;
	}

	case PTRACE_SETFPREGS: {
		ret = copy_regset_from_user(child, view, REGSET_FP,
					    0 * sizeof(u32),
					    32 * sizeof(u32),
					    &fps->regs[0]);
		if (!ret)
			ret = copy_regset_from_user(child, view, REGSET_FP,
						    33 * sizeof(u32),
						    1 * sizeof(u32),
						    &fps->fsr);
		break;
	}

	case PTRACE_READTEXT:
	case PTRACE_READDATA:
		ret = ptrace_readdata(child, addr, addr2p, data);

		if (ret == data)
			ret = 0;
		else if (ret >= 0)
			ret = -EIO;
		break;

	case PTRACE_WRITETEXT:
	case PTRACE_WRITEDATA:
		ret = ptrace_writedata(child, addr2p, addr, data);

		if (ret == data)
			ret = 0;
		else if (ret >= 0)
			ret = -EIO;
		break;

	default:
		if (request == PTRACE_SPARC_DETACH)
			request = PTRACE_DETACH;
		ret = ptrace_request(child, request, addr, data);
//.........这里部分代码省略.........

开发者ID:01org，项目名称:thunderbolt-software-kernel-tree，代码行数:101，代码来源:ptrace_32.c

示例20: arch_ptrace

long arch_ptrace(struct task_struct *child, long request,
		 unsigned long addr, unsigned long data)
{
	return ptrace_request(child, request, addr, data);
}

开发者ID:BlissRoms-Kernels，项目名称:kernel_motorola_BlissPure，代码行数:5，代码来源:ptrace.c

注：本文中的ptrace_request函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。