projects / dragonfly.git / blame
| Commit | Line | Data |
|---|---|---|
| d7f50089 YY |
1 | /* |
| 2 | * Copyright (c) 1993 | |
| 3 | * The Regents of the University of California. All rights reserved. | |
| 4 | * Copyright (c) 1993 Jan-Simon Pendry | |
| 5 | * | |
| 6 | * This code is derived from software contributed to Berkeley by | |
| 7 | * Jan-Simon Pendry. | |
| 8 | * | |
| 9 | * Redistribution and use in source and binary forms, with or without | |
| 10 | * modification, are permitted provided that the following conditions | |
| 11 | * are met: | |
| 12 | * 1. Redistributions of source code must retain the above copyright | |
| 13 | * notice, this list of conditions and the following disclaimer. | |
| 14 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 15 | * notice, this list of conditions and the following disclaimer in the | |
| 16 | * documentation and/or other materials provided with the distribution. | |
| 17 | * 3. All advertising materials mentioning features or use of this software | |
| 18 | * must display the following acknowledgement: | |
| 19 | * This product includes software developed by the University of | |
| 20 | * California, Berkeley and its contributors. | |
| 21 | * 4. Neither the name of the University nor the names of its contributors | |
| 22 | * may be used to endorse or promote products derived from this software | |
| 23 | * without specific prior written permission. | |
| 24 | * | |
| 25 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 26 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 27 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 28 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 29 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 30 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 31 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 32 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 33 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 34 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 35 | * SUCH DAMAGE. | |
| 36 | * | |
| 37 | * @(#)procfs_machdep.c 8.3 (Berkeley) 1/27/94 | |
| 38 | * | |
| 39 | * From: | |
| 40 | * $FreeBSD: src/sys/i386/i386/procfs_machdep.c,v 1.14 1999/10/11 14:50:03 peter Exp $ | |
| d7f50089 YY |
41 | */ |
| 42 | ||
| 43 | /* | |
| 44 | * Functions to be implemented here are: | |
| 45 | * | |
| 46 | * procfs_read_regs(lwp, regs) | |
| 47 | * Get the current user-visible register set from the process | |
| 48 | * and copy it into the regs structure (<machine/reg.h>). | |
| 49 | * The process is stopped at the time read_regs is called. | |
| 50 | * | |
| 51 | * procfs_write_regs(lwp, regs) | |
| 52 | * Update the current register set from the passed in regs | |
| 53 | * structure. Take care to avoid clobbering special CPU | |
| 54 | * registers or privileged bits in the PSL. | |
| 55 | * Depending on the architecture this may have fix-up work to do, | |
| 56 | * especially if the IAR or PCW are modified. | |
| 57 | * The process is stopped at the time write_regs is called. | |
| 58 | * | |
| 59 | * procfs_read_fpregs, procfs_write_fpregs | |
| 60 | * deal with the floating point register set, otherwise as above. | |
| 61 | * | |
| 62 | * procfs_read_dbregs, procfs_write_dbregs | |
| 63 | * deal with the processor debug register set, otherwise as above. | |
| 64 | * | |
| 65 | * procfs_sstep(lwp) | |
| 66 | * Arrange for the process to trap after executing a single instruction. | |
| 67 | * | |
| 68 | */ | |
| 69 | ||
| 70 | #include <sys/param.h> | |
| 71 | #include <sys/proc.h> | |
| 72 | #include <sys/ptrace.h> | |
| 73 | #include <sys/vnode.h> | |
| 74 | #include <sys/reg.h> | |
| 75 | #include <machine/md_var.h> | |
| 76 | #include <vfs/procfs/procfs.h> | |
| 77 | ||
| 78 | #include <vm/vm.h> | |
| 79 | #include <sys/lock.h> | |
| 80 | #include <vm/pmap.h> | |
| 81 | #include <vm/vm_map.h> | |
| 82 | ||
| 83 | int | |
| 84 | procfs_read_regs(struct lwp *lp, struct reg *regs) | |
| 85 | { | |
| 86 | return (fill_regs(lp, regs)); | |
| 87 | } | |
| 88 | ||
| 89 | int | |
| 90 | procfs_write_regs(struct lwp *lp, struct reg *regs) | |
| 91 | { | |
| 92 | return (set_regs(lp, regs)); | |
| 93 | } | |
| 94 | ||
| 95 | int | |
| 96 | procfs_read_dbregs(struct lwp *lp, struct dbreg *dbregs) | |
| 97 | { | |
| 98 | return (fill_dbregs(lp, dbregs)); | |
| 99 | } | |
| 100 | ||
| 101 | int | |
| 102 | procfs_write_dbregs(struct lwp *lp, struct dbreg *dbregs) | |
| 103 | { | |
| 104 | return (set_dbregs(lp, dbregs)); | |
| 105 | } | |
| 106 | ||
| 107 | /* | |
| 108 | * Ptrace doesn't support fpregs at all, and there are no security holes | |
| 109 | * or translations for fpregs, so we can just copy them. | |
| 110 | */ | |
| 111 | ||
| 112 | int | |
| 113 | procfs_read_fpregs(struct lwp *lp, struct fpreg *fpregs) | |
| 114 | { | |
| 115 | return (fill_fpregs(lp, fpregs)); | |
| 116 | } | |
| 117 | ||
| 118 | int | |
| 119 | procfs_write_fpregs(struct lwp *lp, struct fpreg *fpregs) | |
| 120 | { | |
| 121 | return (set_fpregs(lp, fpregs)); | |
| 122 | } | |
| 123 | ||
| 124 | int | |
| 125 | procfs_sstep(struct lwp *lp) | |
| 126 | { | |
| 127 | return (ptrace_single_step(lp)); | |
| 128 | } |