source: trunk/libs/newlib/src/libgloss/m68k/io.h @ 688

Last change on this file since 688 was 444, checked in by satin@…, 6 years ago

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

File size: 4.4 KB
RevLine 
[444]1/*
2 * hosted & unhosted 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#if HOSTED
18#include <stdint.h>
19#include <sys/types.h>
20#include <sys/time.h>
21#include <sys/stat.h>
22
23#define HOSTED_EXIT  0
24#define HOSTED_INIT_SIM 1
25#define HOSTED_OPEN 2
26#define HOSTED_CLOSE 3
27#define HOSTED_READ 4
28#define HOSTED_WRITE 5
29#define HOSTED_LSEEK 6
30#define HOSTED_RENAME 7
31#define HOSTED_UNLINK 8
32#define HOSTED_STAT 9
33#define HOSTED_FSTAT 10
34#define HOSTED_GETTIMEOFDAY 11
35#define HOSTED_ISATTY 12
36#define HOSTED_SYSTEM 13
37
38/* This function is provided by the board's BSP, because the precise
39   mechanism of informing gdb is board specific.  */
40extern int __io_hosted (int func, void *args);
41
42/* Protocol specific representation of datatypes, as specified in D.9.11
43 * of the GDB manual.
44 * Note that since the m68k is big-endian, we can use native
45 * representations of integer datatypes in structured datatypes. */
46
47typedef uint32_t gdb_mode_t;
48typedef uint32_t gdb_time_t;
49
50struct gdb_stat {
51  uint32_t    st_dev;     /* device */
52  uint32_t    st_ino;     /* inode */
53  gdb_mode_t  st_mode;    /* protection */
54  uint32_t    st_nlink;   /* number of hard links */
55  uint32_t    st_uid;     /* user ID of owner */
56  uint32_t    st_gid;     /* group ID of owner */
57  uint32_t    st_rdev;    /* device type (if inode device) */
58  uint64_t    st_size;    /* total size, in bytes */
59  uint64_t    st_blksize; /* blocksize for filesystem I/O */
60  uint64_t    st_blocks;  /* number of blocks allocated */
61  gdb_time_t  st_atime;   /* time of last access */
62  gdb_time_t  st_mtime;   /* time of last modification */
63  gdb_time_t  st_ctime;   /* time of last change */
64};
65
66struct gdb_timeval {
67  gdb_time_t tv_sec;  /* second */
68  uint64_t tv_usec;   /* microsecond */
69};
70
71
72/* Parameters are passed between the library and the debugging stub
73 * in a fixed-size buffer.
74 */
75
76typedef uint32_t gdb_parambuf_t[4];
77
78/* open flags */
79
80#define GDB_O_RDONLY   0x0
81#define GDB_O_WRONLY   0x1
82#define GDB_O_RDWR     0x2
83#define GDB_O_APPEND   0x8
84#define GDB_O_CREAT  0x200
85#define GDB_O_TRUNC  0x400
86#define GDB_O_EXCL   0x800
87
88/* mode_t values */
89
90#define GDB_S_IFREG 0100000
91#define GDB_S_IFDIR  040000
92#define GDB_S_IRUSR    0400
93#define GDB_S_IWUSR    0200
94#define GDB_S_IXUSR    0100
95#define GDB_S_IRGRP     040
96#define GDB_S_IWGRP     020
97#define GDB_S_IXGRP     010
98#define GDB_S_IROTH      04
99#define GDB_S_IWOTH      02
100#define GDB_S_IXOTH      01
101
102/* errno values */
103
104#define GDB_EPERM         1
105#define GDB_ENOENT        2
106#define GDB_EINTR         4
107#define GDB_EBADF         9
108#define GDB_EACCES       13
109#define GDB_EFAULT       14
110#define GDB_EBUSY        16
111#define GDB_EEXIST       17
112#define GDB_ENODEV       19
113#define GDB_ENOTDIR      20
114#define GDB_EISDIR       21
115#define GDB_EINVAL       22
116#define GDB_ENFILE       23
117#define GDB_EMFILE       24
118#define GDB_EFBIG        27
119#define GDB_ENOSPC       28
120#define GDB_ESPIPE       29
121#define GDB_EROFS        30
122#define GDB_ENAMETOOLONG 91
123#define GDB_EUNKNOWN     9999
124
125/* lseek flags */
126
127#define GDB_SEEK_SET 0
128#define GDB_SEEK_CUR 1
129#define GDB_SEEK_END 2
130
131
132/* conversion functions */
133
134extern gdb_mode_t __hosted_to_gdb_mode_t (mode_t m);
135extern int32_t __hosted_to_gdb_open_flags (int f);
136extern int32_t __hosted_to_gdb_lseek_flags (int f);
137
138extern void __hosted_from_gdb_stat (const struct gdb_stat *gs,
139                                    struct stat *s);
140extern void __hosted_from_gdb_timeval (const struct gdb_timeval *gt,
141                                       struct timeval *t);
142extern int __hosted_from_gdb_errno (int32_t err);
143
144#else
145#ifdef IO
146#define IO_NAME_(IO) __hosted_##IO
147#define IO_NAME(IO) IO_NAME_(IO)
148#define IO_STRING_(IO) #IO
149#define IO_STRING(IO) IO_STRING_(IO)
150/* Emit an object that causes a gnu linker warning.  */
151static const char IO_NAME (IO) []
152__attribute__ ((section (".gnu.warning"), used)) =
153"IO function '" IO_STRING (IO) "' used";
154#endif
155#endif
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