1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/*
* hosted & unhosted io support.
*
* Copyright (c) 2006 CodeSourcery Inc
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#if HOSTED
#include <stdint.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/stat.h>
#define HOSTED_EXIT 0
#define HOSTED_INIT_SIM 1
#define HOSTED_OPEN 2
#define HOSTED_CLOSE 3
#define HOSTED_READ 4
#define HOSTED_WRITE 5
#define HOSTED_LSEEK 6
#define HOSTED_RENAME 7
#define HOSTED_UNLINK 8
#define HOSTED_STAT 9
#define HOSTED_FSTAT 10
#define HOSTED_GETTIMEOFDAY 11
#define HOSTED_ISATTY 12
#define HOSTED_SYSTEM 13
/* This function is provided by the board's BSP, because the precise
mechanism of informing gdb is board specific. */
extern int __io_hosted (int func, void *args);
/* Protocol specific representation of datatypes, as specified in D.9.11
* of the GDB manual.
* Note that since the m68k is big-endian, we can use native
* representations of integer datatypes in structured datatypes. */
typedef uint32_t gdb_mode_t;
typedef uint32_t gdb_time_t;
struct gdb_stat {
uint32_t st_dev; /* device */
uint32_t st_ino; /* inode */
gdb_mode_t st_mode; /* protection */
uint32_t st_nlink; /* number of hard links */
uint32_t st_uid; /* user ID of owner */
uint32_t st_gid; /* group ID of owner */
uint32_t st_rdev; /* device type (if inode device) */
uint64_t st_size; /* total size, in bytes */
uint64_t st_blksize; /* blocksize for filesystem I/O */
uint64_t st_blocks; /* number of blocks allocated */
gdb_time_t st_atime; /* time of last access */
gdb_time_t st_mtime; /* time of last modification */
gdb_time_t st_ctime; /* time of last change */
};
struct gdb_timeval {
gdb_time_t tv_sec; /* second */
uint64_t tv_usec; /* microsecond */
};
/* Parameters are passed between the library and the debugging stub
* in a fixed-size buffer.
*/
typedef uint32_t gdb_parambuf_t[4];
/* open flags */
#define GDB_O_RDONLY 0x0
#define GDB_O_WRONLY 0x1
#define GDB_O_RDWR 0x2
#define GDB_O_APPEND 0x8
#define GDB_O_CREAT 0x200
#define GDB_O_TRUNC 0x400
#define GDB_O_EXCL 0x800
/* mode_t values */
#define GDB_S_IFREG 0100000
#define GDB_S_IFDIR 040000
#define GDB_S_IRUSR 0400
#define GDB_S_IWUSR 0200
#define GDB_S_IXUSR 0100
#define GDB_S_IRGRP 040
#define GDB_S_IWGRP 020
#define GDB_S_IXGRP 010
#define GDB_S_IROTH 04
#define GDB_S_IWOTH 02
#define GDB_S_IXOTH 01
/* errno values */
#define GDB_EPERM 1
#define GDB_ENOENT 2
#define GDB_EINTR 4
#define GDB_EBADF 9
#define GDB_EACCES 13
#define GDB_EFAULT 14
#define GDB_EBUSY 16
#define GDB_EEXIST 17
#define GDB_ENODEV 19
#define GDB_ENOTDIR 20
#define GDB_EISDIR 21
#define GDB_EINVAL 22
#define GDB_ENFILE 23
#define GDB_EMFILE 24
#define GDB_EFBIG 27
#define GDB_ENOSPC 28
#define GDB_ESPIPE 29
#define GDB_EROFS 30
#define GDB_ENAMETOOLONG 91
#define GDB_EUNKNOWN 9999
/* lseek flags */
#define GDB_SEEK_SET 0
#define GDB_SEEK_CUR 1
#define GDB_SEEK_END 2
/* conversion functions */
extern gdb_mode_t __hosted_to_gdb_mode_t (mode_t m);
extern int32_t __hosted_to_gdb_open_flags (int f);
extern int32_t __hosted_to_gdb_lseek_flags (int f);
extern void __hosted_from_gdb_stat (const struct gdb_stat *gs,
struct stat *s);
extern void __hosted_from_gdb_timeval (const struct gdb_timeval *gt,
struct timeval *t);
extern int __hosted_from_gdb_errno (int32_t err);
#else
#ifdef IO
#define IO_NAME_(IO) __hosted_##IO
#define IO_NAME(IO) IO_NAME_(IO)
#define IO_STRING_(IO) #IO
#define IO_STRING(IO) IO_STRING_(IO)
/* Emit an object that causes a gnu linker warning. */
static const char IO_NAME (IO) []
__attribute__ ((section (".gnu.warning"), used)) =
"IO function '" IO_STRING (IO) "' used";
#endif
#endif
|
