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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
/** @file
Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
Copyright (c) 2013 - 2014, ARM Ltd. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef __SEMIHOST_PRIVATE_H__
#define __SEMIHOST_PRIVATE_H__
typedef struct {
CHAR8 *FileName;
UINTN Mode;
UINTN NameLength;
} SEMIHOST_FILE_OPEN_BLOCK;
typedef struct {
UINTN Handle;
VOID *Buffer;
UINTN Length;
} SEMIHOST_FILE_READ_WRITE_BLOCK;
typedef struct {
UINTN Handle;
UINTN Location;
} SEMIHOST_FILE_SEEK_BLOCK;
typedef struct {
VOID *Buffer;
UINTN Identifier;
UINTN Length;
} SEMIHOST_FILE_TMPNAME_BLOCK;
typedef struct {
CHAR8 *FileName;
UINTN NameLength;
} SEMIHOST_FILE_REMOVE_BLOCK;
typedef struct {
CHAR8 *FileName;
UINTN FileNameLength;
CHAR8 *NewFileName;
UINTN NewFileNameLength;
} SEMIHOST_FILE_RENAME_BLOCK;
typedef struct {
CHAR8 *CommandLine;
UINTN CommandLength;
} SEMIHOST_SYSTEM_BLOCK;
#if defined(__CC_ARM)
#if defined(__thumb__)
#define SWI 0xAB
#else
#define SWI 0x123456
#endif
#define SEMIHOST_SUPPORTED TRUE
__swi(SWI)
INT32
_Semihost_SYS_OPEN(
IN UINTN SWI_0x01,
IN SEMIHOST_FILE_OPEN_BLOCK *OpenBlock
);
__swi(SWI)
INT32
_Semihost_SYS_CLOSE(
IN UINTN SWI_0x02,
IN UINT32 *Handle
);
__swi(SWI)
VOID
_Semihost_SYS_WRITEC(
IN UINTN SWI_0x03,
IN CHAR8 *Character
);
__swi(SWI)
VOID
_Semihost_SYS_WRITE0(
IN UINTN SWI_0x04,
IN CHAR8 *String
);
__swi(SWI)
UINT32
_Semihost_SYS_WRITE(
IN UINTN SWI_0x05,
IN OUT SEMIHOST_FILE_READ_WRITE_BLOCK *WriteBlock
);
__swi(SWI)
UINT32
_Semihost_SYS_READ(
IN UINTN SWI_0x06,
IN OUT SEMIHOST_FILE_READ_WRITE_BLOCK *ReadBlock
);
__swi(SWI)
CHAR8
_Semihost_SYS_READC(
IN UINTN SWI_0x07,
IN UINTN Zero
);
__swi(SWI)
INT32
_Semihost_SYS_SEEK(
IN UINTN SWI_0x0A,
IN SEMIHOST_FILE_SEEK_BLOCK *SeekBlock
);
__swi(SWI)
INT32
_Semihost_SYS_FLEN(
IN UINTN SWI_0x0C,
IN UINT32 *Handle
);
__swi(SWI)
UINT32
_Semihost_SYS_TMPNAME(
IN UINTN SWI_0x0D,
IN SEMIHOST_FILE_TMPNAME_BLOCK *TmpNameBlock
);
__swi(SWI)
UINT32
_Semihost_SYS_REMOVE(
IN UINTN SWI_0x0E,
IN SEMIHOST_FILE_REMOVE_BLOCK *RemoveBlock
);
__swi(SWI)
UINT32
_Semihost_SYS_RENAME(
IN UINTN SWI_0x0F,
IN SEMIHOST_FILE_RENAME_BLOCK *RenameBlock
);
__swi(SWI)
UINT32
_Semihost_SYS_SYSTEM(
IN UINTN SWI_0x12,
IN SEMIHOST_SYSTEM_BLOCK *SystemBlock
);
#define Semihost_SYS_OPEN(OpenBlock) _Semihost_SYS_OPEN(0x01, OpenBlock)
#define Semihost_SYS_CLOSE(Handle) _Semihost_SYS_CLOSE(0x02, Handle)
#define Semihost_SYS_WRITE0(String) _Semihost_SYS_WRITE0(0x04, String)
#define Semihost_SYS_WRITEC(Character) _Semihost_SYS_WRITEC(0x03, Character)
#define Semihost_SYS_WRITE(WriteBlock) _Semihost_SYS_WRITE(0x05, WriteBlock)
#define Semihost_SYS_READ(ReadBlock) _Semihost_SYS_READ(0x06, ReadBlock)
#define Semihost_SYS_READC() _Semihost_SYS_READC(0x07, 0)
#define Semihost_SYS_SEEK(SeekBlock) _Semihost_SYS_SEEK(0x0A, SeekBlock)
#define Semihost_SYS_FLEN(Handle) _Semihost_SYS_FLEN(0x0C, Handle)
#define Semihost_SYS_TMPNAME(TmpNameBlock) _Semihost_SYS_TMPNAME(0x0D, TmpNameBlock)
#define Semihost_SYS_REMOVE(RemoveBlock) _Semihost_SYS_REMOVE(0x0E, RemoveBlock)
#define Semihost_SYS_RENAME(RenameBlock) _Semihost_SYS_RENAME(0x0F, RenameBlock)
#define Semihost_SYS_SYSTEM(SystemBlock) _Semihost_SYS_SYSTEM(0x12, SystemBlock)
#elif defined(__GNUC__) // __CC_ARM
#define SEMIHOST_SUPPORTED TRUE
UINT32
GccSemihostCall (
IN UINT32 Operation,
IN UINTN SystemBlockAddress
); // __attribute__ ((interrupt ("SVC")));
#define Semihost_SYS_OPEN(OpenBlock) GccSemihostCall(0x01, (UINTN)(OpenBlock))
#define Semihost_SYS_CLOSE(Handle) GccSemihostCall(0x02, (UINTN)(Handle))
#define Semihost_SYS_WRITE0(String) GccSemihostCall(0x04, (UINTN)(String))
#define Semihost_SYS_WRITEC(Character) GccSemihostCall(0x03, (UINTN)(Character))
#define Semihost_SYS_WRITE(WriteBlock) GccSemihostCall(0x05, (UINTN)(WriteBlock))
#define Semihost_SYS_READ(ReadBlock) GccSemihostCall(0x06, (UINTN)(ReadBlock))
#define Semihost_SYS_READC() GccSemihostCall(0x07, (UINTN)(0))
#define Semihost_SYS_SEEK(SeekBlock) GccSemihostCall(0x0A, (UINTN)(SeekBlock))
#define Semihost_SYS_FLEN(Handle) GccSemihostCall(0x0C, (UINTN)(Handle))
#define Semihost_SYS_TMPNAME(TmpNameBlock) GccSemihostCall(0x0D, (UINTN)(TmpNameBlock))
#define Semihost_SYS_REMOVE(RemoveBlock) GccSemihostCall(0x0E, (UINTN)(RemoveBlock))
#define Semihost_SYS_RENAME(RenameBlock) GccSemihostCall(0x0F, (UINTN)(RenameBlock))
#define Semihost_SYS_SYSTEM(SystemBlock) GccSemihostCall(0x12, (UINTN)(SystemBlock))
#else // __CC_ARM
#define SEMIHOST_SUPPORTED FALSE
#define Semihost_SYS_OPEN(OpenBlock) (-1)
#define Semihost_SYS_CLOSE(Handle) (-1)
#define Semihost_SYS_WRITE0(String)
#define Semihost_SYS_WRITEC(Character)
#define Semihost_SYS_WRITE(WriteBlock) (0)
#define Semihost_SYS_READ(ReadBlock) ((ReadBlock)->Length)
#define Semihost_SYS_READC() ('x')
#define Semihost_SYS_SEEK(SeekBlock) (-1)
#define Semihost_SYS_FLEN(Handle) (-1)
#define Semihost_SYS_TMPNAME(TmpNameBlock) (-1)
#define Semihost_SYS_REMOVE(RemoveBlock) (-1)
#define Semihost_SYS_RENAME(RenameBlock) (-1)
#define Semihost_SYS_SYSTEM(SystemBlock) (-1)
#endif // __CC_ARM
#endif //__SEMIHOST_PRIVATE_H__
|
