source: trunk/libs/newlib/src/libgloss/visium/io.h @ 546

Last change on this file since 546 was 444, checked in by satin@…, 6 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc

File size: 4.0 KB
Line 
1/*
2 * hosted io support.
3 *
4 * Copyright (c) 2006 CodeSourcery Inc
5 *
6 * The authors hereby grant permission to use, copy, modify, distribute,
7 * and license this software and its documentation for any purpose, provided
8 * that existing copyright notices are retained in all copies and that this
9 * notice is included verbatim in any distributions. No written agreement,
10 * license, or royalty fee is required for any of the authorized uses.
11 * Modifications to this software may be copyrighted by their authors
12 * and need not follow the licensing terms described here, provided that
13 * the new terms are clearly indicated on the first page of each file where
14 * they apply.
15 */
16
17#include <stdint.h>
18#include <sys/types.h>
19#include <sys/time.h>
20#include <sys/stat.h>
21
22#define HOSTED_EXIT  0
23#define HOSTED_INIT_SIM 1
24#define HOSTED_OPEN 2
25#define HOSTED_CLOSE 3
26#define HOSTED_READ 4
27#define HOSTED_WRITE 5
28#define HOSTED_LSEEK 6
29#define HOSTED_RENAME 7
30#define HOSTED_UNLINK 8
31#define HOSTED_STAT 9
32#define HOSTED_FSTAT 10
33#define HOSTED_GETTIMEOFDAY 11
34#define HOSTED_ISATTY 12
35#define HOSTED_SYSTEM 13
36
37/* This function is provided by the board's BSP, because the precise
38   mechanism of informing gdb is board specific.  */
39extern int __io_hosted (int func, void *args);
40
41/* Protocol specific representation of datatypes, as specified in D.9.11
42 * of the GDB manual.
43 * Note that since the m68k is big-endian, we can use native
44 * representations of integer datatypes in structured datatypes. */
45
46typedef uint32_t gdb_mode_t;
47typedef uint32_t gdb_time_t;
48
49struct gdb_stat {
50  uint32_t    st_dev;     /* device */
51  uint32_t    st_ino;     /* inode */
52  gdb_mode_t  st_mode;    /* protection */
53  uint32_t    st_nlink;   /* number of hard links */
54  uint32_t    st_uid;     /* user ID of owner */
55  uint32_t    st_gid;     /* group ID of owner */
56  uint32_t    st_rdev;    /* device type (if inode device) */
57  uint64_t    st_size;    /* total size, in bytes */
58  uint64_t    st_blksize; /* blocksize for filesystem I/O */
59  uint64_t    st_blocks;  /* number of blocks allocated */
60  gdb_time_t  st_atime;   /* time of last access */
61  gdb_time_t  st_mtime;   /* time of last modification */
62  gdb_time_t  st_ctime;   /* time of last change */
63};
64
65struct gdb_timeval {
66  gdb_time_t tv_sec;  /* second */
67  uint64_t tv_usec;   /* microsecond */
68};
69
70
71/* Parameters are passed between the library and the debugging stub
72 * in a fixed-size buffer.
73 */
74
75typedef uint32_t gdb_parambuf_t[4];
76
77/* open flags */
78
79#define GDB_O_RDONLY   0x0
80#define GDB_O_WRONLY   0x1
81#define GDB_O_RDWR     0x2
82#define GDB_O_APPEND   0x8
83#define GDB_O_CREAT  0x200
84#define GDB_O_TRUNC  0x400
85#define GDB_O_EXCL   0x800
86
87/* mode_t values */
88
89#define GDB_S_IFREG 0100000
90#define GDB_S_IFDIR  040000
91#define GDB_S_IRUSR    0400
92#define GDB_S_IWUSR    0200
93#define GDB_S_IXUSR    0100
94#define GDB_S_IRGRP     040
95#define GDB_S_IWGRP     020
96#define GDB_S_IXGRP     010
97#define GDB_S_IROTH      04
98#define GDB_S_IWOTH      02
99#define GDB_S_IXOTH      01
100
101/* errno values */
102
103#define GDB_EPERM         1
104#define GDB_ENOENT        2
105#define GDB_EINTR         4
106#define GDB_EBADF         9
107#define GDB_EACCES       13
108#define GDB_EFAULT       14
109#define GDB_EBUSY        16
110#define GDB_EEXIST       17
111#define GDB_ENODEV       19
112#define GDB_ENOTDIR      20
113#define GDB_EISDIR       21
114#define GDB_EINVAL       22
115#define GDB_ENFILE       23
116#define GDB_EMFILE       24
117#define GDB_EFBIG        27
118#define GDB_ENOSPC       28
119#define GDB_ESPIPE       29
120#define GDB_EROFS        30
121#define GDB_ENAMETOOLONG 91
122#define GDB_EUNKNOWN     9999
123
124/* lseek flags */
125
126#define GDB_SEEK_SET 0
127#define GDB_SEEK_CUR 1
128#define GDB_SEEK_END 2
129
130
131/* conversion functions */
132
133extern gdb_mode_t __hosted_to_gdb_mode_t (mode_t m);
134extern int32_t __hosted_to_gdb_open_flags (int f);
135extern int32_t __hosted_to_gdb_lseek_flags (int f);
136
137extern void __hosted_from_gdb_stat (const struct gdb_stat *gs,
138                                    struct stat *s);
139extern void __hosted_from_gdb_timeval (const struct gdb_timeval *gt,
140                                       struct timeval *t);
141extern int __hosted_from_gdb_errno (int32_t err);
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