lib/libproc/_libproc.h

root/lib/libproc/_libproc.h
/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2008 John Birrell (jb@freebsd.org)
 * 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.
 */

#ifndef __LIBPROC_H_
#define __LIBPROC_H_

#include <sys/types.h>
#include <sys/ptrace.h>

#include <libelf.h>
#include <rtld_db.h>

#include "libproc.h"

struct procstat;

struct symtab {
        Elf_Data *data;
        u_int   nsyms;
        u_int   *index;
        u_long  stridx;
};

struct file_info {
        Elf     *elf;
        int     fd;
        u_int   refs;
        GElf_Ehdr ehdr;

        /* Symbol tables, sorted by value. */
        struct symtab dynsymtab;
        struct symtab symtab;
};

struct map_info {
        prmap_t map;
        struct file_info *file;
};

struct proc_handle {
        struct proc_handle_public public; /* Public fields. */
        int     flags;                  /* Process flags. */
        int     status;                 /* Process status (PS_*). */
        int     wstat;                  /* Process wait status. */
        int     model;                  /* Process data model. */
        rd_agent_t *rdap;               /* librtld_db agent */
        struct map_info *mappings;      /* File mappings for proc. */
        size_t  maparrsz;               /* Map array size. */
        size_t  nmappings;              /* Number of mappings. */
        size_t  exec_map;               /* Executable text mapping index. */
        lwpstatus_t lwps;               /* Process status. */
        struct procstat *procstat;      /* libprocstat handle. */
        char    execpath[PATH_MAX];     /* Path to program executable. */
};

#ifdef DEBUG
#define DPRINTF(...)    warn(__VA_ARGS__)
#define DPRINTFX(...)   warnx(__VA_ARGS__)
#else
#define DPRINTF(...)    do { } while (0)
#define DPRINTFX(...)   do { } while (0)
#endif

#endif /* __LIBPROC_H_ */
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