WebSVN – HelenOS – Diff – /branches/dynload/uspace/srv/loader/include/elf_load.h


/*
 * Copyright (c) 2008 Jiri Svoboda
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - 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.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
 */
 
/** @addtogroup generic
 * @{
 */
/** @file
 * @brief ELF loader structures and public functions.
 */
 
#ifndef ELF_LOAD_H_
#define ELF_LOAD_H_
 
#include <arch/elf.h>
#include <sys/types.h>
#include <loader/pcb.h>
 
#include "elf.h"
 
typedef enum {
    /** Leave all segments in RW access mode. */
    ELDF_RW = 1
} eld_flags_t;
 
/**
 * Some data extracted from the headers are stored here
 */
typedef struct {
    /** Entry point */
    entry_point_t entry;
 
    /** ELF interpreter name or NULL if statically-linked */
    char *interp;
 
    /** Pointer to the dynamic section */
    void *dynamic;
} elf_info_t;
 
/**
 * Holds information about an ELF binary being loaded.
 */
typedef struct {
    /** Filedescriptor of the file from which we are loading */
    int fd;
 
    /** Difference between run-time addresses and link-time addresses */
    uintptr_t bias;
 
    /** Flags passed to the ELF loader. */
    eld_flags_t flags;
 
    /** A copy of the ELF file header */
    elf_header_t *header;
 
    /** Store extracted info here */
    elf_info_t *info;
} elf_ld_t;
 
int elf_load_file(char *file_name, size_t so_bias, eld_flags_t flags,
    elf_info_t *info);
 
void elf_create_pcb(elf_info_t *info, pcb_t *pcb);
 
#endif
 
/** @}
 */
 

Rev 3552	Rev 3681
1	/*	1	/*
2	* Copyright (c) 2008 Jiri Svoboda	2	* Copyright (c) 2008 Jiri Svoboda
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	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	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.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	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	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	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	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	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	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.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup generic	29	/** @addtogroup generic
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	* @brief ELF loader structures and public functions.	33	* @brief ELF loader structures and public functions.
34	*/	34	*/
35		35
36	#ifndef ELF_LOAD_H_	36	#ifndef ELF_LOAD_H_
37	#define ELF_LOAD_H_	37	#define ELF_LOAD_H_
38		38
39	#include <arch/elf.h>	39	#include <arch/elf.h>
40	#include <sys/types.h>	40	#include <sys/types.h>
41	#include <loader/pcb.h>	41	#include <loader/pcb.h>
42		42
43	#include "elf.h"	43	#include "elf.h"
44		44
45	typedef enum {	45	typedef enum {
46	/** Leave all segments in RW access mode. */	46	/** Leave all segments in RW access mode. */
47	ELDF_RW = 1	47	ELDF_RW = 1
48	} eld_flags_t;	48	} eld_flags_t;
49		49
50	/**	50	/**
51	* Some data extracted from the headers are stored here	51	* Some data extracted from the headers are stored here
52	*/	52	*/
53	typedef struct {	53	typedef struct {
54	/** Entry point */	54	/** Entry point */
55	entry_point_t entry;	55	entry_point_t entry;
56		56
57	/** ELF interpreter name or NULL if statically-linked */	57	/** ELF interpreter name or NULL if statically-linked */
58	char *interp;	58	char *interp;
59		59
60	/** Pointer to the dynamic section */	60	/** Pointer to the dynamic section */
61	void *dynamic;	61	void *dynamic;
62	} elf_info_t;	62	} elf_info_t;
63		63
64	/**	64	/**
65	* Holds information about an ELF binary being loaded.	65	* Holds information about an ELF binary being loaded.
66	*/	66	*/
67	typedef struct {	67	typedef struct {
68	/** Filedescriptor of the file from which we are loading */	68	/** Filedescriptor of the file from which we are loading */
69	int fd;	69	int fd;
70		70
71	/** Difference between run-time addresses and link-time addresses */	71	/** Difference between run-time addresses and link-time addresses */
72	uintptr_t bias;	72	uintptr_t bias;
73		73
74	/** Flags passed to the ELF loader. */	74	/** Flags passed to the ELF loader. */
75	eld_flags_t flags;	75	eld_flags_t flags;
76		76
77	/** A copy of the ELF file header */	77	/** A copy of the ELF file header */
78	elf_header_t *header;	78	elf_header_t *header;
79		79
80	/** Store extracted info here */	80	/** Store extracted info here */
81	elf_info_t *info;	81	elf_info_t *info;
82	} elf_ld_t;	82	} elf_ld_t;
83		83
84	int elf_load_file(char *file_name, size_t so_bias, eld_flags_t flags,	84	int elf_load_file(char *file_name, size_t so_bias, eld_flags_t flags,
85	elf_info_t *info);	85	elf_info_t *info);
86	void elf_run(elf_info_t info, pcb_t pcb);	-
87	void elf_create_pcb(elf_info_t info, pcb_t pcb);	86	void elf_create_pcb(elf_info_t info, pcb_t pcb);
88		87
89	#endif	88	#endif
90		89
91	/** @}	90	/** @}
92	*/	91	*/
93		92

Subversion Repositories HelenOS

(root)/branches/dynload/uspace/srv/loader/include/elf_load.h – Rev 3552 → 3681