Elijah Stanger-Jones / mbed-dev-f303

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

platform/mbed_semihost_api.h@1:8a094db1347f, 2020-11-09 (annotated)

Committer:
elijahsj
Date:
Mon Nov 09 00:02:47 2020 -0500
Revision:
1:8a094db1347f
test

Who changed what in which revision?

UserRevisionLine numberNew contents of line
elijahsj 1:8a094db1347f 1
elijahsj 1:8a094db1347f 2 /** \addtogroup platform */
elijahsj 1:8a094db1347f 3 /** @{*/
elijahsj 1:8a094db1347f 4 /* mbed Microcontroller Library
elijahsj 1:8a094db1347f 5 * Copyright (c) 2006-2013 ARM Limited
elijahsj 1:8a094db1347f 6 *
elijahsj 1:8a094db1347f 7 * Licensed under the Apache License, Version 2.0 (the "License");
elijahsj 1:8a094db1347f 8 * you may not use this file except in compliance with the License.
elijahsj 1:8a094db1347f 9 * You may obtain a copy of the License at
elijahsj 1:8a094db1347f 10 *
elijahsj 1:8a094db1347f 11 * http://www.apache.org/licenses/LICENSE-2.0
elijahsj 1:8a094db1347f 12 *
elijahsj 1:8a094db1347f 13 * Unless required by applicable law or agreed to in writing, software
elijahsj 1:8a094db1347f 14 * distributed under the License is distributed on an "AS IS" BASIS,
elijahsj 1:8a094db1347f 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
elijahsj 1:8a094db1347f 16 * See the License for the specific language governing permissions and
elijahsj 1:8a094db1347f 17 * limitations under the License.
elijahsj 1:8a094db1347f 18 */
elijahsj 1:8a094db1347f 19 #ifndef MBED_SEMIHOST_H
elijahsj 1:8a094db1347f 20 #define MBED_SEMIHOST_H
elijahsj 1:8a094db1347f 21
elijahsj 1:8a094db1347f 22 #include "device.h"
elijahsj 1:8a094db1347f 23 #include "platform/mbed_toolchain.h"
elijahsj 1:8a094db1347f 24
elijahsj 1:8a094db1347f 25 #ifdef __cplusplus
elijahsj 1:8a094db1347f 26 extern "C" {
elijahsj 1:8a094db1347f 27 #endif
elijahsj 1:8a094db1347f 28
elijahsj 1:8a094db1347f 29 #if DEVICE_SEMIHOST
elijahsj 1:8a094db1347f 30
elijahsj 1:8a094db1347f 31 #if !defined(__CC_ARM) && !defined(__ARMCC_VERSION)
elijahsj 1:8a094db1347f 32
elijahsj 1:8a094db1347f 33 #if defined(__ICCARM__)
elijahsj 1:8a094db1347f 34 static inline int __semihost(int reason, const void *arg) {
elijahsj 1:8a094db1347f 35 return __semihosting(reason, (void*)arg);
elijahsj 1:8a094db1347f 36 }
elijahsj 1:8a094db1347f 37 #else
elijahsj 1:8a094db1347f 38
elijahsj 1:8a094db1347f 39 #ifdef __thumb__
elijahsj 1:8a094db1347f 40 # define AngelSWI 0xAB
elijahsj 1:8a094db1347f 41 # define AngelSWIInsn "bkpt"
elijahsj 1:8a094db1347f 42 # define AngelSWIAsm bkpt
elijahsj 1:8a094db1347f 43 #else
elijahsj 1:8a094db1347f 44 # define AngelSWI 0x123456
elijahsj 1:8a094db1347f 45 # define AngelSWIInsn "swi"
elijahsj 1:8a094db1347f 46 # define AngelSWIAsm swi
elijahsj 1:8a094db1347f 47 #endif
elijahsj 1:8a094db1347f 48
elijahsj 1:8a094db1347f 49 static inline int __semihost(int reason, const void *arg) {
elijahsj 1:8a094db1347f 50 int value;
elijahsj 1:8a094db1347f 51
elijahsj 1:8a094db1347f 52 asm volatile (
elijahsj 1:8a094db1347f 53 "mov r0, %1" "\n\t"
elijahsj 1:8a094db1347f 54 "mov r1, %2" "\n\t"
elijahsj 1:8a094db1347f 55 AngelSWIInsn " %a3" "\n\t"
elijahsj 1:8a094db1347f 56 "mov %0, r0"
elijahsj 1:8a094db1347f 57 : "=r" (value) /* output operands */
elijahsj 1:8a094db1347f 58 : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
elijahsj 1:8a094db1347f 59 : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
elijahsj 1:8a094db1347f 60 );
elijahsj 1:8a094db1347f 61
elijahsj 1:8a094db1347f 62 return value;
elijahsj 1:8a094db1347f 63 }
elijahsj 1:8a094db1347f 64 #endif
elijahsj 1:8a094db1347f 65 #endif
elijahsj 1:8a094db1347f 66
elijahsj 1:8a094db1347f 67 #if DEVICE_LOCALFILESYSTEM
elijahsj 1:8a094db1347f 68 FILEHANDLE semihost_open(const char* name, int openmode);
elijahsj 1:8a094db1347f 69 int semihost_close (FILEHANDLE fh);
elijahsj 1:8a094db1347f 70 int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
elijahsj 1:8a094db1347f 71 int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
elijahsj 1:8a094db1347f 72 int semihost_ensure(FILEHANDLE fh);
elijahsj 1:8a094db1347f 73 long semihost_flen (FILEHANDLE fh);
elijahsj 1:8a094db1347f 74 int semihost_seek (FILEHANDLE fh, long position);
elijahsj 1:8a094db1347f 75 int semihost_istty (FILEHANDLE fh);
elijahsj 1:8a094db1347f 76
elijahsj 1:8a094db1347f 77 int semihost_remove(const char *name);
elijahsj 1:8a094db1347f 78 int semihost_rename(const char *old_name, const char *new_name);
elijahsj 1:8a094db1347f 79 #endif
elijahsj 1:8a094db1347f 80
elijahsj 1:8a094db1347f 81 int semihost_uid(char *uid);
elijahsj 1:8a094db1347f 82 int semihost_reset(void);
elijahsj 1:8a094db1347f 83 int semihost_vbus(void);
elijahsj 1:8a094db1347f 84 int semihost_powerdown(void);
elijahsj 1:8a094db1347f 85 int semihost_exit(void);
elijahsj 1:8a094db1347f 86
elijahsj 1:8a094db1347f 87 int semihost_connected(void);
elijahsj 1:8a094db1347f 88 int semihost_disabledebug(void);
elijahsj 1:8a094db1347f 89
elijahsj 1:8a094db1347f 90 #endif
elijahsj 1:8a094db1347f 91
elijahsj 1:8a094db1347f 92 #ifdef __cplusplus
elijahsj 1:8a094db1347f 93 }
elijahsj 1:8a094db1347f 94 #endif
elijahsj 1:8a094db1347f 95
elijahsj 1:8a094db1347f 96 #endif
elijahsj 1:8a094db1347f 97
elijahsj 1:8a094db1347f 98 /** @}*/