1 /*
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright © 2023 Keith Packard
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following
15 * disclaimer in the documentation and/or other materials provided
16 * with the distribution.
17 *
18 * 3. Neither the name of the copyright holder nor the names of its
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
25 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
26 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
33 * OF THE POSSIBILITY OF SUCH DAMAGE.
34 */
35
36 #ifndef _ARC_SEMIHOST_H_
37 #define _ARC_SEMIHOST_H_
38
39 #include <stdint.h>
40 #include <errno.h>
41
42 #define SYS_SEMIHOST_exit 1
43 #define SYS_SEMIHOST_read 3
44 #define SYS_SEMIHOST_write 4
45 #define SYS_SEMIHOST_open 5
46 #define SYS_SEMIHOST_close 6
47 #define SYS_SEMIHOST_unlink 10
48 #define SYS_SEMIHOST_time 13
49 #define SYS_SEMIHOST_lseek 19
50 #define SYS_SEMIHOST_times 43
51 #define SYS_SEMIHOST_gettimeofday 78
52 #define SYS_SEMIHOST_stat 106 /* nsim stat's is corupted. */
53 #define SYS_SEMIHOST_fstat 108
54 #define SYS_SEMIHOST_argc 1000
55 #define SYS_SEMIHOST_argv_sz 1001
56 #define SYS_SEMIHOST_argv 1002
57 #define SYS_SEMIHOST_memset 1004
58 #define SYS_SEMIHOST_errno 2000
59
60 enum {
61 TARGET_ERRNO_EPERM = 1, /* Not owner */
62 TARGET_ERRNO_ENOENT = 2, /* No such file or directory */
63 TARGET_ERRNO_ESRCH = 3, /* No such process */
64 TARGET_ERRNO_EINTR = 4, /* Interrupted system call */
65 TARGET_ERRNO_EIO = 5, /* I/O error */
66 TARGET_ERRNO_ENXIO = 6, /* No such device or address */
67 TARGET_ERRNO_E2BIG = 7, /* Arg list too long */
68 TARGET_ERRNO_ENOEXEC = 8, /* Exec format error */
69 TARGET_ERRNO_EBADF = 9, /* Bad file number */
70 TARGET_ERRNO_ECHILD = 10, /* No children */
71 TARGET_ERRNO_EAGAIN = 11, /* No more processes */
72 TARGET_ERRNO_ENOMEM = 12, /* Not enough space */
73 TARGET_ERRNO_EACCES = 13, /* Permission denied */
74 TARGET_ERRNO_EFAULT = 14, /* Bad address */
75 TARGET_ERRNO_ENOTBLK = 15, /* Block device required */
76 TARGET_ERRNO_EBUSY = 16, /* Device or resource busy */
77 TARGET_ERRNO_EEXIST = 17, /* File exists */
78 TARGET_ERRNO_EXDEV = 18, /* Cross-device link */
79 TARGET_ERRNO_ENODEV = 19, /* No such device */
80 TARGET_ERRNO_ENOTDIR = 20, /* Not a directory */
81 TARGET_ERRNO_EISDIR = 21, /* Is a directory */
82 TARGET_ERRNO_EINVAL = 22, /* Invalid argument */
83 TARGET_ERRNO_ENFILE = 23, /* Too many open files in system */
84 TARGET_ERRNO_EMFILE = 24, /* File descriptor value too large */
85 TARGET_ERRNO_ENOTTY = 25, /* Not a character device */
86 TARGET_ERRNO_ETXTBSY = 26, /* Text file busy */
87 TARGET_ERRNO_EFBIG = 27, /* File too large */
88 TARGET_ERRNO_ENOSPC = 28, /* No space left on device */
89 TARGET_ERRNO_ESPIPE = 29, /* Illegal seek */
90 TARGET_ERRNO_EROFS = 30, /* Read-only file system */
91 TARGET_ERRNO_EMLINK = 31, /* Too many links */
92 TARGET_ERRNO_EPIPE = 32, /* Broken pipe */
93 TARGET_ERRNO_EDOM = 33, /* Mathematics argument out of domain of function */
94 TARGET_ERRNO_ERANGE = 34, /* Result too large */
95 TARGET_ERRNO_ENOMSG = 35, /* No message of desired type */
96 TARGET_ERRNO_EIDRM = 36, /* Identifier removed */
97 TARGET_ERRNO_ECHRNG = 37, /* Channel number out of range */
98 TARGET_ERRNO_EL2NSYNC = 38, /* Level 2 not synchronized */
99 TARGET_ERRNO_EL3HLT = 39, /* Level 3 halted */
100 TARGET_ERRNO_EL3RST = 40, /* Level 3 reset */
101 TARGET_ERRNO_ELNRNG = 41, /* Link number out of range */
102 TARGET_ERRNO_EUNATCH = 42, /* Protocol driver not attached */
103 TARGET_ERRNO_ENOCSI = 43, /* No CSI structure available */
104 TARGET_ERRNO_EL2HLT = 44, /* Level 2 halted */
105 TARGET_ERRNO_EDEADLK = 45, /* Deadlock */
106 TARGET_ERRNO_ENOLCK = 46, /* No lock */
107 TARGET_ERRNO_EBADE = 50, /* Invalid exchange */
108 TARGET_ERRNO_EBADR = 51, /* Invalid request descriptor */
109 TARGET_ERRNO_EXFULL = 52, /* Exchange full */
110 TARGET_ERRNO_ENOANO = 53, /* No anode */
111 TARGET_ERRNO_EBADRQC = 54, /* Invalid request code */
112 TARGET_ERRNO_EBADSLT = 55, /* Invalid slot */
113 TARGET_ERRNO_EDEADLOCK = 56, /* File locking deadlock error */
114 TARGET_ERRNO_EBFONT = 57, /* Bad font file fmt */
115 TARGET_ERRNO_ENOSTR = 60, /* Not a stream */
116 TARGET_ERRNO_ENODATA = 61, /* No data (for no delay io) */
117 TARGET_ERRNO_ETIME = 62, /* Stream ioctl timeout */
118 TARGET_ERRNO_ENOSR = 63, /* No stream resources */
119 TARGET_ERRNO_ENONET = 64, /* Machine is not on the network */
120 TARGET_ERRNO_ENOPKG = 65, /* Package not installed */
121 TARGET_ERRNO_EREMOTE = 66, /* The object is remote */
122 TARGET_ERRNO_ENOLINK = 67, /* Virtual circuit is gone */
123 TARGET_ERRNO_EADV = 68, /* Advertise error */
124 TARGET_ERRNO_ESRMNT = 69, /* Srmount error */
125 TARGET_ERRNO_ECOMM = 70, /* Communication error on send */
126 TARGET_ERRNO_EPROTO = 71, /* Protocol error */
127 TARGET_ERRNO_EMULTIHOP = 74, /* Multihop attempted */
128 TARGET_ERRNO_ELBIN = 75, /* Inode is remote (not really error) */
129 TARGET_ERRNO_EDOTDOT = 76, /* Cross mount point (not really error) */
130 TARGET_ERRNO_EBADMSG = 77, /* Bad message */
131 TARGET_ERRNO_EFTYPE = 79, /* Inappropriate file type or format */
132 TARGET_ERRNO_ENOTUNIQ = 80, /* Given log. name not unique */
133 TARGET_ERRNO_EBADFD = 81, /* File descriptor in bad state */
134 TARGET_ERRNO_EREMCHG = 82, /* Remote address changed */
135 TARGET_ERRNO_ELIBACC = 83, /* Can't access a needed shared lib */
136 TARGET_ERRNO_ELIBBAD = 84, /* Accessing a corrupted shared lib */
137 TARGET_ERRNO_ELIBSCN = 85, /* .lib section in a.out corrupted */
138 TARGET_ERRNO_ELIBMAX = 86, /* Attempting to link in too many libs */
139 TARGET_ERRNO_ELIBEXEC = 87, /* Attempting to exec a shared library */
140 TARGET_ERRNO_ENOSYS = 88, /* Function not implemented */
141 TARGET_ERRNO_ENMFILE = 89, /* No more files */
142 TARGET_ERRNO_ENOTEMPTY = 90, /* Directory not empty */
143 TARGET_ERRNO_ENAMETOOLONG = 91, /* File or path name too long */
144 TARGET_ERRNO_ELOOP = 92, /* Too many symbolic links */
145 TARGET_ERRNO_EOPNOTSUPP = 95, /* Operation not supported on socket */
146 TARGET_ERRNO_EPFNOSUPPORT = 96, /* Protocol family not supported */
147 TARGET_ERRNO_ECONNRESET = 104, /* Connection reset by peer */
148 TARGET_ERRNO_ENOBUFS = 105, /* No buffer space available */
149 TARGET_ERRNO_EAFNOSUPPORT = 106,/* Address family not supported by protocol family */
150 TARGET_ERRNO_EPROTOTYPE = 107, /* Protocol wrong type for socket */
151 TARGET_ERRNO_ENOTSOCK = 108, /* Socket operation on non-socket */
152 TARGET_ERRNO_ENOPROTOOPT = 109, /* Protocol not available */
153 TARGET_ERRNO_ESHUTDOWN = 110, /* Can't send after socket shutdown */
154 TARGET_ERRNO_ECONNREFUSED = 111,/* Connection refused */
155 TARGET_ERRNO_EADDRINUSE = 112, /* Address already in use */
156 TARGET_ERRNO_ECONNABORTED = 113,/* Software caused connection abort */
157 TARGET_ERRNO_ENETUNREACH = 114, /* Network is unreachable */
158 TARGET_ERRNO_ENETDOWN = 115, /* Network interface is not configured */
159 TARGET_ERRNO_ETIMEDOUT = 116, /* Connection timed out */
160 TARGET_ERRNO_EHOSTDOWN = 117, /* Host is down */
161 TARGET_ERRNO_EHOSTUNREACH = 118,/* Host is unreachable */
162 TARGET_ERRNO_EINPROGRESS = 119, /* Connection already in progress */
163 TARGET_ERRNO_EALREADY = 120, /* Socket already connected */
164 TARGET_ERRNO_EDESTADDRREQ = 121,/* Destination address required */
165 TARGET_ERRNO_EMSGSIZE = 122, /* Message too long */
166 TARGET_ERRNO_EPROTONOSUPPORT = 123, /* Unknown protocol */
167 TARGET_ERRNO_ESOCKTNOSUPPORT = 124, /* Socket type not supported */
168 TARGET_ERRNO_EADDRNOTAVAIL = 125, /* Address not available */
169 TARGET_ERRNO_ENETRESET = 126, /* Connection aborted by network */
170 TARGET_ERRNO_EISCONN = 127, /* Socket is already connected */
171 TARGET_ERRNO_ENOTCONN = 128, /* Socket is not connected */
172 TARGET_ERRNO_ETOOMANYREFS = 129,/* Too many references: cannot splice */
173 TARGET_ERRNO_EPROCLIM = 130, /* Too many processes */
174 TARGET_ERRNO_EUSERS = 131, /* Too many users */
175 TARGET_ERRNO_EDQUOT = 132, /* Reserved */
176 TARGET_ERRNO_ESTALE = 133, /* Reserved */
177 TARGET_ERRNO_ENOTSUP = 134, /* Not supported */
178 TARGET_ERRNO_ENOMEDIUM = 135, /* No medium found */
179 TARGET_ERRNO_ENOSHARE = 136, /* No such host or network path */
180 TARGET_ERRNO_ECASECLASH = 137, /* Filename exists with different case */
181 TARGET_ERRNO_EILSEQ = 138, /* Illegal byte sequence */
182 TARGET_ERRNO_EOVERFLOW = 139, /* Value too large for defined data type */
183 TARGET_ERRNO_ECANCELED = 140, /* Operation canceled */
184 TARGET_ERRNO_ENOTRECOVERABLE = 141, /* State not recoverable */
185 TARGET_ERRNO_EOWNERDEAD = 142, /* Previous owner died */
186 TARGET_ERRNO_ESTRPIPE = 143, /* Streams pipe error */
187 TARGET_ERRNO_EHWPOISON = 144, /* Memory page has hardware error */
188 TARGET_ERRNO_EISNAM = 145, /* Is a named type file */
189 TARGET_ERRNO_EKEYEXPIRED = 146, /* Key has expired */
190 TARGET_ERRNO_EKEYREJECTED = 147,/* Key was rejected by service */
191 TARGET_ERRNO_EKEYREVOKED = 148, /* Key has been revoked */
192 };
193
194 #ifdef __ARC700__
195 #define SWI "trap0"
196 #else
197 #define SWI "swi"
198 #endif
199
200 static inline uintptr_t
arc_semihost0(uintptr_t op)201 arc_semihost0(uintptr_t op)
202 {
203 register uintptr_t r_op __asm__("r8") = op;
204 register uintptr_t r_r0 __asm__("r0");
205
206 __asm__ volatile (SWI : "=r" (r_r0) : "r" (r_op));
207 return r_r0;
208 }
209
210 static inline uintptr_t
arc_semihost1(uintptr_t op,uintptr_t r0)211 arc_semihost1(uintptr_t op, uintptr_t r0)
212 {
213 register uintptr_t r_op __asm__("r8") = op;
214 register uintptr_t r_r0 __asm__("r0") = r0;
215
216 __asm__ volatile (SWI : "=r" (r_r0) : "r" (r_op), "r" (r_r0));
217 return r_r0;
218 }
219
220 static inline uintptr_t
arc_semihost2(uintptr_t op,uintptr_t r0,uintptr_t r1)221 arc_semihost2(uintptr_t op, uintptr_t r0, uintptr_t r1)
222 {
223 register uintptr_t r_op __asm__("r8") = op;
224 register uintptr_t r_r0 __asm__("r0") = r0;
225 register uintptr_t r_r1 __asm__("r1") = r1;
226
227 __asm__ volatile (SWI : "=r" (r_r0) : "r" (r_op), "r" (r_r0), "r" (r_r1));
228 return r_r0;
229 }
230
231 static inline uintptr_t
arc_semihost3(uintptr_t op,uintptr_t r0,uintptr_t r1,uintptr_t r2)232 arc_semihost3(uintptr_t op, uintptr_t r0, uintptr_t r1, uintptr_t r2)
233 {
234 register uintptr_t r_op __asm__("r8") = op;
235 register uintptr_t r_r0 __asm__("r0") = r0;
236 register uintptr_t r_r1 __asm__("r1") = r1;
237 register uintptr_t r_r2 __asm__("r2") = r2;
238
239 __asm__ volatile (SWI : "=r" (r_r0) : "r" (r_op), "r" (r_r0), "r" (r_r1), "r" (r_r2));
240 return r_r0;
241 }
242
243 void arc_semihost_errno(int def);
244
245 #endif /* _ARC_SEMIHOST_H_ */
246
