Annotation of prex/usr/server/exec/exec.h, Revision 1.1.1.1
1.1 nbrk 1: /*
2: * Copyright (c) 2005-2007, Kohsuke Ohtani
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: * 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: * 3. Neither the name of the author nor the names of any co-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 AUTHOR 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 AUTHOR 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:
30: #ifndef _EXEC_H
31: #define _EXEC_H
32:
33: #include <prex/prex.h>
34: #include <prex/elf.h>
35: #include <sys/param.h>
36: #include <sys/stat.h>
37: #include <server/exec.h>
38:
39: #include <unistd.h>
40:
41: /* #define DEBUG_EXEC 1 */
42:
43: #ifdef DEBUG_EXEC
44: #define DPRINTF(a) dprintf a
45: #else
46: #define DPRINTF(a)
47: #endif
48:
49: #define PRIO_EXEC 127
50:
51: #define HEADER_SIZE 512
52:
53: /*
54: * Definition for exec loader
55: */
56: struct exec_loader {
57: const char *el_name; /* name of loader */
58: void (*el_init)(void); /* initialize routine */
59: int (*el_probe)(void *); /* probe routine */
60: int (*el_load)(void *, task_t, int, void **entry); /* load routine */
61: };
62:
63: /*
64: * Global variables
65: */
66: extern object_t proc_obj;
67: extern object_t fs_obj;
68: extern struct exec_loader loader_table[];
69:
70: extern int build_args(task_t, void *, struct exec_msg *, void **);
71:
72: extern int file_open(char *path, int flags);
73: extern int file_close(int fd);
74: extern int file_read(int fd, void *buf, size_t len);
75: extern int file_lseek(int fd, off_t offset, int whence);
76: extern int file_fstat(int fd, struct stat *st);
77:
78: #endif /* !_EXEC_H */
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