Subversion Repositories HelenOS

Rev

Rev 4480 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
3222 svoboda 1
/*
2
 * Copyright (c) 2008 Jiri Svoboda
3
 * 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
 *
9
 * - Redistributions of source code must retain the above copyright
10
 *   notice, this list of conditions and the following disclaimer.
11
 * - Redistributions in binary form must reproduce the above copyright
12
 *   notice, this list of conditions and the following disclaimer in the
13
 *   documentation and/or other materials provided with the distribution.
14
 * - The name of the author may not be used to endorse or promote products
15
 *   derived from this software without specific prior written permission.
16
 *
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
28
 
29
/** @addtogroup fs
30
 * @{
31
 */
32
/** @file
33
 * @brief Program Control Block interface.
34
 */
35
 
36
#ifndef LIBC_PCB_H_
37
#define LIBC_PCB_H_
38
 
39
#include <sys/types.h>
4480 decky 40
#include <vfs/vfs.h>
3222 svoboda 41
 
42
typedef void (*entry_point_t)(void);
43
 
3469 svoboda 44
/** Program Control Block.
45
 *
3222 svoboda 46
 * Holds pointers to data passed from the program loader to the program
47
 * and/or to the dynamic linker. This includes the program entry point,
48
 * arguments, environment variables etc.
4480 decky 49
 *
3222 svoboda 50
 */
51
typedef struct {
3676 svoboda 52
    /** Program entry point. */
3222 svoboda 53
    entry_point_t entry;
4480 decky 54
 
3676 svoboda 55
    /** Number of command-line arguments. */
3222 svoboda 56
    int argc;
3676 svoboda 57
    /** Command-line arguments. */
3222 svoboda 58
    char **argv;
4480 decky 59
 
60
    /** Number of preset files. */
61
    int filc;
62
    /** Preset files. */
4491 decky 63
    inode_t **filv;
4480 decky 64
 
3222 svoboda 65
    /*
3676 svoboda 66
     * ELF-specific data.
3222 svoboda 67
     */
4480 decky 68
 
3676 svoboda 69
    /** Pointer to ELF dynamic section of the program. */
3222 svoboda 70
    void *dynamic;
71
} pcb_t;
72
 
3676 svoboda 73
/**
74
 * A pointer to the program control block. Having received the PCB pointer,
75
 * the C library startup code stores it here for later use.
76
 */
3222 svoboda 77
extern pcb_t *__pcb;
78
 
79
#endif
80
 
81
/**
82
 * @}
83
 */