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This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

api/semihost_api.h@10:3bc89ef62ce7, 2013-06-14 (annotated)

Committer:
emilmont
Date:
Fri Jun 14 17:49:17 2013 +0100
Revision:
10:3bc89ef62ce7
Parent:
9:0ce32e54c9a7
Child:
13:0645d8841f51
Unify mbed library sources

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 10:3bc89ef62ce7 1 /* mbed Microcontroller Library
emilmont 10:3bc89ef62ce7 2 * Copyright (c) 2006-2013 ARM Limited
emilmont 10:3bc89ef62ce7 3 *
emilmont 10:3bc89ef62ce7 4 * Licensed under the Apache License, Version 2.0 (the "License");
emilmont 10:3bc89ef62ce7 5 * you may not use this file except in compliance with the License.
emilmont 10:3bc89ef62ce7 6 * You may obtain a copy of the License at
emilmont 10:3bc89ef62ce7 7 *
emilmont 10:3bc89ef62ce7 8 * http://www.apache.org/licenses/LICENSE-2.0
emilmont 10:3bc89ef62ce7 9 *
emilmont 10:3bc89ef62ce7 10 * Unless required by applicable law or agreed to in writing, software
emilmont 10:3bc89ef62ce7 11 * distributed under the License is distributed on an "AS IS" BASIS,
emilmont 10:3bc89ef62ce7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
emilmont 10:3bc89ef62ce7 13 * See the License for the specific language governing permissions and
emilmont 10:3bc89ef62ce7 14 * limitations under the License.
emilmont 10:3bc89ef62ce7 15 */
emilmont 10:3bc89ef62ce7 16 #ifndef MBED_SEMIHOST_H
emilmont 10:3bc89ef62ce7 17 #define MBED_SEMIHOST_H
emilmont 10:3bc89ef62ce7 18
emilmont 10:3bc89ef62ce7 19 #include "device.h"
emilmont 10:3bc89ef62ce7 20 #include "toolchain.h"
emilmont 10:3bc89ef62ce7 21
emilmont 10:3bc89ef62ce7 22 #ifdef __cplusplus
emilmont 10:3bc89ef62ce7 23 extern "C" {
emilmont 10:3bc89ef62ce7 24 #endif
emilmont 10:3bc89ef62ce7 25
emilmont 10:3bc89ef62ce7 26 #if DEVICE_SEMIHOST
emilmont 10:3bc89ef62ce7 27
emilmont 10:3bc89ef62ce7 28 #ifndef __CC_ARM
emilmont 10:3bc89ef62ce7 29
emilmont 10:3bc89ef62ce7 30 #if defined(__ICCARM__)
emilmont 10:3bc89ef62ce7 31 inline int __semihost(int reason, const void *arg) {
emilmont 10:3bc89ef62ce7 32 return __semihosting(reason, (void*)arg);
emilmont 10:3bc89ef62ce7 33 }
emilmont 10:3bc89ef62ce7 34 #else
emilmont 10:3bc89ef62ce7 35
emilmont 10:3bc89ef62ce7 36 #ifdef __thumb__
emilmont 10:3bc89ef62ce7 37 # define AngelSWI 0xAB
emilmont 10:3bc89ef62ce7 38 # define AngelSWIInsn "bkpt"
emilmont 10:3bc89ef62ce7 39 # define AngelSWIAsm bkpt
emilmont 10:3bc89ef62ce7 40 #else
emilmont 10:3bc89ef62ce7 41 # define AngelSWI 0x123456
emilmont 10:3bc89ef62ce7 42 # define AngelSWIInsn "swi"
emilmont 10:3bc89ef62ce7 43 # define AngelSWIAsm swi
emilmont 10:3bc89ef62ce7 44 #endif
emilmont 10:3bc89ef62ce7 45
emilmont 10:3bc89ef62ce7 46 static inline int __semihost(int reason, const void *arg) {
emilmont 10:3bc89ef62ce7 47 int value;
emilmont 10:3bc89ef62ce7 48
emilmont 10:3bc89ef62ce7 49 asm volatile (
emilmont 10:3bc89ef62ce7 50 "mov r0, %1" "\n\t"
emilmont 10:3bc89ef62ce7 51 "mov r1, %2" "\n\t"
emilmont 10:3bc89ef62ce7 52 AngelSWIInsn " %a3" "\n\t"
emilmont 10:3bc89ef62ce7 53 "mov %0, r0"
emilmont 10:3bc89ef62ce7 54 : "=r" (value) /* output operands */
emilmont 10:3bc89ef62ce7 55 : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
emilmont 10:3bc89ef62ce7 56 : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
emilmont 10:3bc89ef62ce7 57 );
emilmont 10:3bc89ef62ce7 58
emilmont 10:3bc89ef62ce7 59 return value;
emilmont 10:3bc89ef62ce7 60 }
emilmont 10:3bc89ef62ce7 61 #endif
emilmont 10:3bc89ef62ce7 62 #endif
emilmont 10:3bc89ef62ce7 63
emilmont 10:3bc89ef62ce7 64 #if DEVICE_LOCALFILESYSTEM
emilmont 10:3bc89ef62ce7 65 FILEHANDLE semihost_open(const char* name, int openmode);
emilmont 10:3bc89ef62ce7 66 int semihost_close (FILEHANDLE fh);
emilmont 10:3bc89ef62ce7 67 int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
emilmont 10:3bc89ef62ce7 68 int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
emilmont 10:3bc89ef62ce7 69 int semihost_ensure(FILEHANDLE fh);
emilmont 10:3bc89ef62ce7 70 long semihost_flen (FILEHANDLE fh);
emilmont 10:3bc89ef62ce7 71 int semihost_seek (FILEHANDLE fh, long position);
emilmont 10:3bc89ef62ce7 72 int semihost_istty (FILEHANDLE fh);
emilmont 10:3bc89ef62ce7 73
emilmont 10:3bc89ef62ce7 74 int semihost_remove(const char *name);
emilmont 10:3bc89ef62ce7 75 int semihost_rename(const char *old_name, const char *new_name);
emilmont 10:3bc89ef62ce7 76 #endif
emilmont 10:3bc89ef62ce7 77
emilmont 10:3bc89ef62ce7 78 int semihost_uid(char *uid);
emilmont 10:3bc89ef62ce7 79 int semihost_reset(void);
emilmont 10:3bc89ef62ce7 80 int semihost_vbus(void);
emilmont 10:3bc89ef62ce7 81 int semihost_powerdown(void);
emilmont 10:3bc89ef62ce7 82 int semihost_exit(void);
emilmont 10:3bc89ef62ce7 83
emilmont 10:3bc89ef62ce7 84 int semihost_connected(void);
emilmont 10:3bc89ef62ce7 85 int semihost_disabledebug(void);
emilmont 10:3bc89ef62ce7 86
emilmont 10:3bc89ef62ce7 87 #endif
emilmont 10:3bc89ef62ce7 88
emilmont 10:3bc89ef62ce7 89 #ifdef __cplusplus
emilmont 10:3bc89ef62ce7 90 }
emilmont 10:3bc89ef62ce7 91 #endif
emilmont 10:3bc89ef62ce7 92
emilmont 10:3bc89ef62ce7 93 #endif