ptrace.h revision 145691
1/*- 2 * Copyright (c) 1984, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)ptrace.h 8.2 (Berkeley) 1/4/94 30 * $FreeBSD: head/sys/sys/ptrace.h 145691 2005-04-29 22:38:02Z cperciva $ 31 */ 32 33#ifndef _SYS_PTRACE_H_ 34#define _SYS_PTRACE_H_ 35 36#define PT_TRACE_ME 0 /* child declares it's being traced */ 37#define PT_READ_I 1 /* read word in child's I space */ 38#define PT_READ_D 2 /* read word in child's D space */ 39/* was PT_READ_U 3 * read word in child's user structure */ 40#define PT_WRITE_I 4 /* write word in child's I space */ 41#define PT_WRITE_D 5 /* write word in child's D space */ 42/* was PT_WRITE_U 6 * write word in child's user structure */ 43#define PT_CONTINUE 7 /* continue the child */ 44#define PT_KILL 8 /* kill the child process */ 45#define PT_STEP 9 /* single step the child */ 46 47#define PT_ATTACH 10 /* trace some running process */ 48#define PT_DETACH 11 /* stop tracing a process */ 49#define PT_IO 12 /* do I/O to/from stopped process. */ 50#define PT_LWPINFO 13 /* Info about the LWP that stopped. */ 51#define PT_GETNUMLWPS 14 /* get total number of threads */ 52#define PT_GETLWPLIST 15 /* get thread list */ 53#define PT_CLEARSTEP 16 /* turn off single step */ 54#define PT_SETSTEP 17 /* turn on single step */ 55#define PT_SUSPEND 18 /* suspend a thread */ 56#define PT_RESUME 19 /* resume a thread */ 57 58#define PT_TO_SCE 20 59#define PT_TO_SCX 21 60#define PT_SYSCALL 22 61 62#define PT_GETREGS 33 /* get general-purpose registers */ 63#define PT_SETREGS 34 /* set general-purpose registers */ 64#define PT_GETFPREGS 35 /* get floating-point registers */ 65#define PT_SETFPREGS 36 /* set floating-point registers */ 66#define PT_GETDBREGS 37 /* get debugging registers */ 67#define PT_SETDBREGS 38 /* set debugging registers */ 68#define PT_FIRSTMACH 64 /* for machine-specific requests */ 69#include <machine/ptrace.h> /* machine-specific requests, if any */ 70 71struct ptrace_io_desc { 72 int piod_op; /* I/O operation */ 73 void *piod_offs; /* child offset */ 74 void *piod_addr; /* parent offset */ 75 size_t piod_len; /* request length */ 76}; 77 78/* 79 * Operations in piod_op. 80 */ 81#define PIOD_READ_D 1 /* Read from D space */ 82#define PIOD_WRITE_D 2 /* Write to D space */ 83#define PIOD_READ_I 3 /* Read from I space */ 84#define PIOD_WRITE_I 4 /* Write to I space */ 85 86/* Argument structure for PT_LWPINFO. */ 87struct ptrace_lwpinfo { 88 lwpid_t pl_lwpid; /* LWP described. */ 89 int pl_event; /* Event that stopped the LWP. */ 90#define PL_EVENT_NONE 0 91#define PL_EVENT_SIGNAL 1 92 int pl_flags; /* LWP flags. */ 93#define PL_FLAG_SA 0x01 /* M:N thread */ 94#define PL_FLAG_BOUND 0x02 /* M:N bound thread */ 95}; 96 97#ifdef _KERNEL 98 99#define PTRACESTOP_SC(p, td, flag) \ 100 if ((p)->p_flag & P_TRACED && (p)->p_stops & (flag)) { \ 101 PROC_LOCK(p); \ 102 ptracestop((td), SIGTRAP); \ 103 PROC_UNLOCK(p); \ 104 } 105/* 106 * The flags below are used for ptrace(2) tracing and have no relation 107 * to procfs. They are stored in struct proc's p_stops member. 108 */ 109#define S_PT_SCE 0x000010000 110#define S_PT_SCX 0x000020000 111 112int ptrace_set_pc(struct thread *_td, unsigned long _addr); 113int ptrace_single_step(struct thread *_td); 114int ptrace_clear_single_step(struct thread *_td); 115 116#ifdef __HAVE_PTRACE_MACHDEP 117int cpu_ptrace(struct thread *_td, int _req, void *_addr, int _data); 118#endif 119 120/* 121 * These are prototypes for functions that implement some of the 122 * debugging functionality exported by procfs / linprocfs and by the 123 * ptrace(2) syscall. They used to be part of procfs, but they don't 124 * really belong there. 125 */ 126struct reg; 127struct fpreg; 128struct dbreg; 129struct uio; 130int proc_read_regs(struct thread *_td, struct reg *_reg); 131int proc_write_regs(struct thread *_td, struct reg *_reg); 132int proc_read_fpregs(struct thread *_td, struct fpreg *_fpreg); 133int proc_write_fpregs(struct thread *_td, struct fpreg *_fpreg); 134int proc_read_dbregs(struct thread *_td, struct dbreg *_dbreg); 135int proc_write_dbregs(struct thread *_td, struct dbreg *_dbreg); 136int proc_sstep(struct thread *_td); 137int proc_rwmem(struct proc *_p, struct uio *_uio); 138#else /* !_KERNEL */ 139 140#include <sys/cdefs.h> 141 142__BEGIN_DECLS 143int ptrace(int _request, pid_t _pid, caddr_t _addr, int _data); 144__END_DECLS 145 146#endif /* !_KERNEL */ 147 148#endif /* !_SYS_PTRACE_H_ */ 149