File Manager

003 File Manager

Current Path: /usr/src/sys/i386/i386

📁 ..
📄 apic_vector.s(6.78 KB)
📄 atpic_vector.s(2.63 KB)
📄 bios.c(19.81 KB)
📄 bioscall.s(3.97 KB)
📄 bpf_jit_machdep.c(13.33 KB)
📄 bpf_jit_machdep.h(11.54 KB)
📄 copyout.c(11.91 KB)
📄 copyout_fast.s(6.35 KB)
📄 db_disasm.c(42.43 KB)
📄 db_interface.c(2.84 KB)
📄 db_trace.c(18.78 KB)
📄 elan-mmcr.c(12.2 KB)
📄 elf_machdep.c(7.52 KB)
📄 exception.s(16.3 KB)
📄 gdb_machdep.c(3.46 KB)
📄 genassym.c(8.88 KB)
📄 geode.c(8.86 KB)
📄 in_cksum.c(12.03 KB)
📄 initcpu.c(22.28 KB)
📄 io.c(1.82 KB)
📄 k6_mem.c(5.23 KB)
📄 locore.s(11.27 KB)
📄 longrun.c(8.97 KB)
📄 machdep.c(85.6 KB)
📄 mem.c(6.46 KB)
📄 minidump_machdep.c(1.93 KB)
📄 minidump_machdep_base.c(8.92 KB)
📄 minidump_machdep_nopae.c(1.7 KB)
📄 minidump_machdep_pae.c(1.72 KB)
📄 mp_clock.c(3.96 KB)
📄 mp_machdep.c(17.51 KB)
📄 mpboot.s(6.56 KB)
📄 npx.c(40.46 KB)
📄 perfmon.c(8.54 KB)
📄 pmap.c(166.3 KB)
📄 pmap_base.c(20.83 KB)
📄 pmap_nopae.c(1.85 KB)
📄 pmap_pae.c(1.89 KB)
📄 prof_machdep.c(11.04 KB)
📄 ptrace_machdep.c(4.76 KB)
📄 sigtramp.s(4.15 KB)
📄 support.s(11.06 KB)
📄 swtch.s(11.14 KB)
📄 sys_machdep.c(20.6 KB)
📄 trap.c(31.29 KB)
📄 uio_machdep.c(4.01 KB)
📄 vm86.c(20.95 KB)
📄 vm86bios.s(4.72 KB)
📄 vm_machdep.c(17.06 KB)

Editing: ptrace_machdep.c

/*-
 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
 *
 * Copyright (c) 2005 Doug Rabson
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#include "opt_cpu.h"

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/proc.h>
#include <sys/ptrace.h>
#include <machine/frame.h>
#include <machine/md_var.h>
#include <machine/pcb.h>

static int
cpu_ptrace_xstate(struct thread *td, int req, void *addr, int data)
{
	struct ptrace_xstate_info info;
	char *savefpu;
	int error;

if (!use_xsave)
		return (EOPNOTSUPP);

switch (req) {
	case PT_GETXSTATE_OLD:
		npxgetregs(td);
		savefpu = (char *)(get_pcb_user_save_td(td) + 1);
		error = copyout(savefpu, addr,
		    cpu_max_ext_state_size - sizeof(union savefpu));
		break;

case PT_SETXSTATE_OLD:
		if (data > cpu_max_ext_state_size - sizeof(union savefpu)) {
			error = EINVAL;
			break;
		}
		savefpu = malloc(data, M_TEMP, M_WAITOK);
		error = copyin(addr, savefpu, data);
		if (error == 0) {
			npxgetregs(td);
			error = npxsetxstate(td, savefpu, data);
		}
		free(savefpu, M_TEMP);
		break;

case PT_GETXSTATE_INFO:
		if (data != sizeof(info)) {
			error  = EINVAL;
			break;
		}
		info.xsave_len = cpu_max_ext_state_size;
		info.xsave_mask = xsave_mask;
		error = copyout(&info, addr, data);
		break;

case PT_GETXSTATE:
		npxgetregs(td);
		savefpu = (char *)(get_pcb_user_save_td(td));
		error = copyout(savefpu, addr, cpu_max_ext_state_size);
		break;

case PT_SETXSTATE:
		if (data < sizeof(union savefpu) ||
		    data > cpu_max_ext_state_size) {
			error = EINVAL;
			break;
		}
		savefpu = malloc(data, M_TEMP, M_WAITOK);
		error = copyin(addr, savefpu, data);
		if (error == 0)
			error = npxsetregs(td, (union savefpu *)savefpu,
			    savefpu + sizeof(union savefpu), data -
			    sizeof(union savefpu));
		free(savefpu, M_TEMP);
		break;

default:
		error = EINVAL;
		break;
	}

return (error);
}

static int
cpu_ptrace_xmm(struct thread *td, int req, void *addr, int data)
{
	struct savexmm *fpstate;
	int error;

if (!cpu_fxsr)
		return (EINVAL);

fpstate = &get_pcb_user_save_td(td)->sv_xmm;
	switch (req) {
	case PT_GETXMMREGS:
		npxgetregs(td);
		error = copyout(fpstate, addr, sizeof(*fpstate));
		break;

case PT_SETXMMREGS:
		npxgetregs(td);
		error = copyin(addr, fpstate, sizeof(*fpstate));
		fpstate->sv_env.en_mxcsr &= cpu_mxcsr_mask;
		break;

case PT_GETXSTATE_OLD:
	case PT_SETXSTATE_OLD:
	case PT_GETXSTATE_INFO:
	case PT_GETXSTATE:
	case PT_SETXSTATE:
		error = cpu_ptrace_xstate(td, req, addr, data);
		break;

default:
		return (EINVAL);
	}

return (error);
}

int
cpu_ptrace(struct thread *td, int req, void *addr, int data)
{
	struct segment_descriptor *sdp, sd;
	register_t r;
	int error;

switch (req) {
	case PT_GETXMMREGS:
	case PT_SETXMMREGS:
	case PT_GETXSTATE_OLD:
	case PT_SETXSTATE_OLD:
	case PT_GETXSTATE_INFO:
	case PT_GETXSTATE:
	case PT_SETXSTATE:
		error = cpu_ptrace_xmm(td, req, addr, data);
		break;

case PT_GETFSBASE:
	case PT_GETGSBASE:
		sdp = req == PT_GETFSBASE ? &td->td_pcb->pcb_fsd :
		    &td->td_pcb->pcb_gsd;
		r = sdp->sd_hibase << 24 | sdp->sd_lobase;
		error = copyout(&r, addr, sizeof(r));
		break;

case PT_SETFSBASE:
	case PT_SETGSBASE:
		error = copyin(addr, &r, sizeof(r));
		if (error != 0)
			break;
		fill_based_sd(&sd, r);
		if (req == PT_SETFSBASE) {
			td->td_pcb->pcb_fsd = sd;
			td->td_frame->tf_fs = GSEL(GUFS_SEL, SEL_UPL);
		} else {
			td->td_pcb->pcb_gsd = sd;
			td->td_pcb->pcb_gs = GSEL(GUGS_SEL, SEL_UPL);
		}
		break;

default:
		return (EINVAL);
	}

return (error);
}

003 File Manager

Editing: ptrace_machdep.c

Upload File

Create Folder