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Dependencies:   mbed Watchdog

Dependents:   STM32-MC_node

mbed/semihost_api.h@0:d383e2dee0f7, 2020-07-06 (annotated)

Committer:
ommpy
Date:
Mon Jul 06 17:18:59 2020 +0530
Revision:
0:d383e2dee0f7
first commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ommpy 0:d383e2dee0f7 1 /* mbed Microcontroller Library
ommpy 0:d383e2dee0f7 2 * Copyright (c) 2006-2013 ARM Limited
ommpy 0:d383e2dee0f7 3 *
ommpy 0:d383e2dee0f7 4 * Licensed under the Apache License, Version 2.0 (the "License");
ommpy 0:d383e2dee0f7 5 * you may not use this file except in compliance with the License.
ommpy 0:d383e2dee0f7 6 * You may obtain a copy of the License at
ommpy 0:d383e2dee0f7 7 *
ommpy 0:d383e2dee0f7 8 * http://www.apache.org/licenses/LICENSE-2.0
ommpy 0:d383e2dee0f7 9 *
ommpy 0:d383e2dee0f7 10 * Unless required by applicable law or agreed to in writing, software
ommpy 0:d383e2dee0f7 11 * distributed under the License is distributed on an "AS IS" BASIS,
ommpy 0:d383e2dee0f7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ommpy 0:d383e2dee0f7 13 * See the License for the specific language governing permissions and
ommpy 0:d383e2dee0f7 14 * limitations under the License.
ommpy 0:d383e2dee0f7 15 */
ommpy 0:d383e2dee0f7 16 #ifndef MBED_SEMIHOST_H
ommpy 0:d383e2dee0f7 17 #define MBED_SEMIHOST_H
ommpy 0:d383e2dee0f7 18
ommpy 0:d383e2dee0f7 19 #include "device.h"
ommpy 0:d383e2dee0f7 20 #include "toolchain.h"
ommpy 0:d383e2dee0f7 21
ommpy 0:d383e2dee0f7 22 #ifdef __cplusplus
ommpy 0:d383e2dee0f7 23 extern "C" {
ommpy 0:d383e2dee0f7 24 #endif
ommpy 0:d383e2dee0f7 25
ommpy 0:d383e2dee0f7 26 #if DEVICE_SEMIHOST
ommpy 0:d383e2dee0f7 27
ommpy 0:d383e2dee0f7 28 #ifndef __CC_ARM
ommpy 0:d383e2dee0f7 29
ommpy 0:d383e2dee0f7 30 #if defined(__ICCARM__)
ommpy 0:d383e2dee0f7 31 inline int __semihost(int reason, const void *arg) {
ommpy 0:d383e2dee0f7 32 return __semihosting(reason, (void*)arg);
ommpy 0:d383e2dee0f7 33 }
ommpy 0:d383e2dee0f7 34 #else
ommpy 0:d383e2dee0f7 35
ommpy 0:d383e2dee0f7 36 #ifdef __thumb__
ommpy 0:d383e2dee0f7 37 # define AngelSWI 0xAB
ommpy 0:d383e2dee0f7 38 # define AngelSWIInsn "bkpt"
ommpy 0:d383e2dee0f7 39 # define AngelSWIAsm bkpt
ommpy 0:d383e2dee0f7 40 #else
ommpy 0:d383e2dee0f7 41 # define AngelSWI 0x123456
ommpy 0:d383e2dee0f7 42 # define AngelSWIInsn "swi"
ommpy 0:d383e2dee0f7 43 # define AngelSWIAsm swi
ommpy 0:d383e2dee0f7 44 #endif
ommpy 0:d383e2dee0f7 45
ommpy 0:d383e2dee0f7 46 static inline int __semihost(int reason, const void *arg) {
ommpy 0:d383e2dee0f7 47 int value;
ommpy 0:d383e2dee0f7 48
ommpy 0:d383e2dee0f7 49 asm volatile (
ommpy 0:d383e2dee0f7 50 "mov r0, %1" "\n\t"
ommpy 0:d383e2dee0f7 51 "mov r1, %2" "\n\t"
ommpy 0:d383e2dee0f7 52 AngelSWIInsn " %a3" "\n\t"
ommpy 0:d383e2dee0f7 53 "mov %0, r0"
ommpy 0:d383e2dee0f7 54 : "=r" (value) /* output operands */
ommpy 0:d383e2dee0f7 55 : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
ommpy 0:d383e2dee0f7 56 : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
ommpy 0:d383e2dee0f7 57 );
ommpy 0:d383e2dee0f7 58
ommpy 0:d383e2dee0f7 59 return value;
ommpy 0:d383e2dee0f7 60 }
ommpy 0:d383e2dee0f7 61 #endif
ommpy 0:d383e2dee0f7 62 #endif
ommpy 0:d383e2dee0f7 63
ommpy 0:d383e2dee0f7 64 #if DEVICE_LOCALFILESYSTEM
ommpy 0:d383e2dee0f7 65 FILEHANDLE semihost_open(const char* name, int openmode);
ommpy 0:d383e2dee0f7 66 int semihost_close (FILEHANDLE fh);
ommpy 0:d383e2dee0f7 67 int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
ommpy 0:d383e2dee0f7 68 int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
ommpy 0:d383e2dee0f7 69 int semihost_ensure(FILEHANDLE fh);
ommpy 0:d383e2dee0f7 70 long semihost_flen (FILEHANDLE fh);
ommpy 0:d383e2dee0f7 71 int semihost_seek (FILEHANDLE fh, long position);
ommpy 0:d383e2dee0f7 72 int semihost_istty (FILEHANDLE fh);
ommpy 0:d383e2dee0f7 73
ommpy 0:d383e2dee0f7 74 int semihost_remove(const char *name);
ommpy 0:d383e2dee0f7 75 int semihost_rename(const char *old_name, const char *new_name);
ommpy 0:d383e2dee0f7 76 #endif
ommpy 0:d383e2dee0f7 77
ommpy 0:d383e2dee0f7 78 int semihost_uid(char *uid);
ommpy 0:d383e2dee0f7 79 int semihost_reset(void);
ommpy 0:d383e2dee0f7 80 int semihost_vbus(void);
ommpy 0:d383e2dee0f7 81 int semihost_powerdown(void);
ommpy 0:d383e2dee0f7 82 int semihost_exit(void);
ommpy 0:d383e2dee0f7 83
ommpy 0:d383e2dee0f7 84 int semihost_connected(void);
ommpy 0:d383e2dee0f7 85 int semihost_disabledebug(void);
ommpy 0:d383e2dee0f7 86
ommpy 0:d383e2dee0f7 87 #endif
ommpy 0:d383e2dee0f7 88
ommpy 0:d383e2dee0f7 89 #ifdef __cplusplus
ommpy 0:d383e2dee0f7 90 }
ommpy 0:d383e2dee0f7 91 #endif
ommpy 0:d383e2dee0f7 92
ommpy 0:d383e2dee0f7 93 #endif