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