ptrace.h revision 205014
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 205014 2010-03-11 14:49:06Z nwhitehorn $ 31 */ 32 33#ifndef _SYS_PTRACE_H_ 34#define _SYS_PTRACE_H_ 35 36#include <sys/_sigset.h> 37#include <machine/reg.h> 38 39#define PT_TRACE_ME 0 /* child declares it's being traced */ 40#define PT_READ_I 1 /* read word in child's I space */ 41#define PT_READ_D 2 /* read word in child's D space */ 42/* was PT_READ_U 3 * read word in child's user structure */ 43#define PT_WRITE_I 4 /* write word in child's I space */ 44#define PT_WRITE_D 5 /* write word in child's D space */ 45/* was PT_WRITE_U 6 * write word in child's user structure */ 46#define PT_CONTINUE 7 /* continue the child */ 47#define PT_KILL 8 /* kill the child process */ 48#define PT_STEP 9 /* single step the child */ 49 50#define PT_ATTACH 10 /* trace some running process */ 51#define PT_DETACH 11 /* stop tracing a process */ 52#define PT_IO 12 /* do I/O to/from stopped process. */ 53#define PT_LWPINFO 13 /* Info about the LWP that stopped. */ 54#define PT_GETNUMLWPS 14 /* get total number of threads */ 55#define PT_GETLWPLIST 15 /* get thread list */ 56#define PT_CLEARSTEP 16 /* turn off single step */ 57#define PT_SETSTEP 17 /* turn on single step */ 58#define PT_SUSPEND 18 /* suspend a thread */ 59#define PT_RESUME 19 /* resume a thread */ 60 61#define PT_TO_SCE 20 62#define PT_TO_SCX 21 63#define PT_SYSCALL 22 64 65#define PT_GETREGS 33 /* get general-purpose registers */ 66#define PT_SETREGS 34 /* set general-purpose registers */ 67#define PT_GETFPREGS 35 /* get floating-point registers */ 68#define PT_SETFPREGS 36 /* set floating-point registers */ 69#define PT_GETDBREGS 37 /* get debugging registers */ 70#define PT_SETDBREGS 38 /* set debugging registers */ 71 72#define PT_VM_TIMESTAMP 40 /* Get VM version (timestamp) */ 73#define PT_VM_ENTRY 41 /* Get VM map (entry) */ 74 75#define PT_FIRSTMACH 64 /* for machine-specific requests */ 76#include <machine/ptrace.h> /* machine-specific requests, if any */ 77 78struct ptrace_io_desc { 79 int piod_op; /* I/O operation */ 80 void *piod_offs; /* child offset */ 81 void *piod_addr; /* parent offset */ 82 size_t piod_len; /* request length */ 83}; 84 85/* 86 * Operations in piod_op. 87 */ 88#define PIOD_READ_D 1 /* Read from D space */ 89#define PIOD_WRITE_D 2 /* Write to D space */ 90#define PIOD_READ_I 3 /* Read from I space */ 91#define PIOD_WRITE_I 4 /* Write to I space */ 92 93/* Argument structure for PT_LWPINFO. */ 94struct ptrace_lwpinfo { 95 lwpid_t pl_lwpid; /* LWP described. */ 96 int pl_event; /* Event that stopped the LWP. */ 97#define PL_EVENT_NONE 0 98#define PL_EVENT_SIGNAL 1 99 int pl_flags; /* LWP flags. */ 100#define PL_FLAG_SA 0x01 /* M:N thread */ 101#define PL_FLAG_BOUND 0x02 /* M:N bound thread */ 102 sigset_t pl_sigmask; /* LWP signal mask */ 103 sigset_t pl_siglist; /* LWP pending signal */ 104}; 105 106/* Argument structure for PT_VM_ENTRY. */ 107struct ptrace_vm_entry { 108 int pve_entry; /* Entry number used for iteration. */ 109 int pve_timestamp; /* Generation number of VM map. */ 110 u_long pve_start; /* Start VA of range. */ 111 u_long pve_end; /* End VA of range (incl). */ 112 u_long pve_offset; /* Offset in backing object. */ 113 u_int pve_prot; /* Protection of memory range. */ 114 u_int pve_pathlen; /* Size of path. */ 115 long pve_fileid; /* File ID. */ 116 uint32_t pve_fsid; /* File system ID. */ 117 char *pve_path; /* Path name of object. */ 118}; 119 120#ifdef _KERNEL 121 122#define PTRACESTOP_SC(p, td, flag) \ 123 if ((p)->p_flag & P_TRACED && (p)->p_stops & (flag)) { \ 124 PROC_LOCK(p); \ 125 ptracestop((td), SIGTRAP); \ 126 PROC_UNLOCK(p); \ 127 } 128/* 129 * The flags below are used for ptrace(2) tracing and have no relation 130 * to procfs. They are stored in struct proc's p_stops member. 131 */ 132#define S_PT_SCE 0x000010000 133#define S_PT_SCX 0x000020000 134 135int ptrace_set_pc(struct thread *_td, unsigned long _addr); 136int ptrace_single_step(struct thread *_td); 137int ptrace_clear_single_step(struct thread *_td); 138 139#ifdef __HAVE_PTRACE_MACHDEP 140int cpu_ptrace(struct thread *_td, int _req, void *_addr, int _data); 141#endif 142 143/* 144 * These are prototypes for functions that implement some of the 145 * debugging functionality exported by procfs / linprocfs and by the 146 * ptrace(2) syscall. They used to be part of procfs, but they don't 147 * really belong there. 148 */ 149struct reg; 150struct fpreg; 151struct dbreg; 152struct uio; 153int proc_read_regs(struct thread *_td, struct reg *_reg); 154int proc_write_regs(struct thread *_td, struct reg *_reg); 155int proc_read_fpregs(struct thread *_td, struct fpreg *_fpreg); 156int proc_write_fpregs(struct thread *_td, struct fpreg *_fpreg); 157int proc_read_dbregs(struct thread *_td, struct dbreg *_dbreg); 158int proc_write_dbregs(struct thread *_td, struct dbreg *_dbreg); 159int proc_sstep(struct thread *_td); 160int proc_rwmem(struct proc *_p, struct uio *_uio); 161#ifdef COMPAT_FREEBSD32 162struct reg32; 163struct fpreg32; 164struct dbreg32; 165int proc_read_regs32(struct thread *_td, struct reg32 *_reg32); 166int proc_write_regs32(struct thread *_td, struct reg32 *_reg32); 167int proc_read_fpregs32(struct thread *_td, struct fpreg32 *_fpreg32); 168int proc_write_fpregs32(struct thread *_td, struct fpreg32 *_fpreg32); 169int proc_read_dbregs32(struct thread *_td, struct dbreg32 *_dbreg32); 170int proc_write_dbregs32(struct thread *_td, struct dbreg32 *_dbreg32); 171#endif 172#else /* !_KERNEL */ 173 174#include <sys/cdefs.h> 175 176__BEGIN_DECLS 177int ptrace(int _request, pid_t _pid, caddr_t _addr, int _data); 178__END_DECLS 179 180#endif /* !_KERNEL */ 181 182#endif /* !_SYS_PTRACE_H_ */ 183