
test
mbed/platform/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?
User | Revision | Line number | New contents of line |
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ommpy | 0:d383e2dee0f7 | 1 | |
ommpy | 0:d383e2dee0f7 | 2 | /* mbed Microcontroller Library |
ommpy | 0:d383e2dee0f7 | 3 | * Copyright (c) 2006-2013 ARM Limited |
ommpy | 0:d383e2dee0f7 | 4 | * SPDX-License-Identifier: Apache-2.0 |
ommpy | 0:d383e2dee0f7 | 5 | * |
ommpy | 0:d383e2dee0f7 | 6 | * Licensed under the Apache License, Version 2.0 (the "License"); |
ommpy | 0:d383e2dee0f7 | 7 | * you may not use this file except in compliance with the License. |
ommpy | 0:d383e2dee0f7 | 8 | * You may obtain a copy of the License at |
ommpy | 0:d383e2dee0f7 | 9 | * |
ommpy | 0:d383e2dee0f7 | 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
ommpy | 0:d383e2dee0f7 | 11 | * |
ommpy | 0:d383e2dee0f7 | 12 | * Unless required by applicable law or agreed to in writing, software |
ommpy | 0:d383e2dee0f7 | 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
ommpy | 0:d383e2dee0f7 | 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
ommpy | 0:d383e2dee0f7 | 15 | * See the License for the specific language governing permissions and |
ommpy | 0:d383e2dee0f7 | 16 | * limitations under the License. |
ommpy | 0:d383e2dee0f7 | 17 | */ |
ommpy | 0:d383e2dee0f7 | 18 | #ifndef MBED_SEMIHOST_H |
ommpy | 0:d383e2dee0f7 | 19 | #define MBED_SEMIHOST_H |
ommpy | 0:d383e2dee0f7 | 20 | |
ommpy | 0:d383e2dee0f7 | 21 | #include "device.h" |
ommpy | 0:d383e2dee0f7 | 22 | #include "platform/mbed_toolchain.h" |
ommpy | 0:d383e2dee0f7 | 23 | |
ommpy | 0:d383e2dee0f7 | 24 | #ifdef __cplusplus |
ommpy | 0:d383e2dee0f7 | 25 | extern "C" { |
ommpy | 0:d383e2dee0f7 | 26 | #endif |
ommpy | 0:d383e2dee0f7 | 27 | |
ommpy | 0:d383e2dee0f7 | 28 | #if DEVICE_SEMIHOST |
ommpy | 0:d383e2dee0f7 | 29 | |
ommpy | 0:d383e2dee0f7 | 30 | #if !defined(__CC_ARM) && !defined(__ARMCC_VERSION) |
ommpy | 0:d383e2dee0f7 | 31 | |
ommpy | 0:d383e2dee0f7 | 32 | #if defined(__ICCARM__) |
ommpy | 0:d383e2dee0f7 | 33 | static inline int __semihost(int reason, const void *arg) |
ommpy | 0:d383e2dee0f7 | 34 | { |
ommpy | 0:d383e2dee0f7 | 35 | return __semihosting(reason, (void *)arg); |
ommpy | 0:d383e2dee0f7 | 36 | } |
ommpy | 0:d383e2dee0f7 | 37 | #else |
ommpy | 0:d383e2dee0f7 | 38 | |
ommpy | 0:d383e2dee0f7 | 39 | #ifdef __thumb__ |
ommpy | 0:d383e2dee0f7 | 40 | # define AngelSWI 0xAB |
ommpy | 0:d383e2dee0f7 | 41 | # define AngelSWIInsn "bkpt" |
ommpy | 0:d383e2dee0f7 | 42 | # define AngelSWIAsm bkpt |
ommpy | 0:d383e2dee0f7 | 43 | #else |
ommpy | 0:d383e2dee0f7 | 44 | # define AngelSWI 0x123456 |
ommpy | 0:d383e2dee0f7 | 45 | # define AngelSWIInsn "swi" |
ommpy | 0:d383e2dee0f7 | 46 | # define AngelSWIAsm swi |
ommpy | 0:d383e2dee0f7 | 47 | #endif |
ommpy | 0:d383e2dee0f7 | 48 | |
ommpy | 0:d383e2dee0f7 | 49 | static inline int __semihost(int reason, const void *arg) |
ommpy | 0:d383e2dee0f7 | 50 | { |
ommpy | 0:d383e2dee0f7 | 51 | int value; |
ommpy | 0:d383e2dee0f7 | 52 | |
ommpy | 0:d383e2dee0f7 | 53 | asm volatile( |
ommpy | 0:d383e2dee0f7 | 54 | "mov r0, %1" "\n\t" |
ommpy | 0:d383e2dee0f7 | 55 | "mov r1, %2" "\n\t" |
ommpy | 0:d383e2dee0f7 | 56 | AngelSWIInsn " %a3" "\n\t" |
ommpy | 0:d383e2dee0f7 | 57 | "mov %0, r0" |
ommpy | 0:d383e2dee0f7 | 58 | : "=r"(value) /* output operands */ |
ommpy | 0:d383e2dee0f7 | 59 | : "r"(reason), "r"(arg), "i"(AngelSWI) /* input operands */ |
ommpy | 0:d383e2dee0f7 | 60 | : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */ |
ommpy | 0:d383e2dee0f7 | 61 | ); |
ommpy | 0:d383e2dee0f7 | 62 | |
ommpy | 0:d383e2dee0f7 | 63 | return value; |
ommpy | 0:d383e2dee0f7 | 64 | } |
ommpy | 0:d383e2dee0f7 | 65 | #endif |
ommpy | 0:d383e2dee0f7 | 66 | #endif |
ommpy | 0:d383e2dee0f7 | 67 | |
ommpy | 0:d383e2dee0f7 | 68 | #if DEVICE_LOCALFILESYSTEM |
ommpy | 0:d383e2dee0f7 | 69 | FILEHANDLE semihost_open(const char *name, int openmode); |
ommpy | 0:d383e2dee0f7 | 70 | int semihost_close(FILEHANDLE fh); |
ommpy | 0:d383e2dee0f7 | 71 | int semihost_read(FILEHANDLE fh, unsigned char *buffer, unsigned int length, int mode); |
ommpy | 0:d383e2dee0f7 | 72 | int semihost_write(FILEHANDLE fh, const unsigned char *buffer, unsigned int length, int mode); |
ommpy | 0:d383e2dee0f7 | 73 | int semihost_ensure(FILEHANDLE fh); |
ommpy | 0:d383e2dee0f7 | 74 | long semihost_flen(FILEHANDLE fh); |
ommpy | 0:d383e2dee0f7 | 75 | int semihost_seek(FILEHANDLE fh, long position); |
ommpy | 0:d383e2dee0f7 | 76 | int semihost_istty(FILEHANDLE fh); |
ommpy | 0:d383e2dee0f7 | 77 | |
ommpy | 0:d383e2dee0f7 | 78 | int semihost_remove(const char *name); |
ommpy | 0:d383e2dee0f7 | 79 | int semihost_rename(const char *old_name, const char *new_name); |
ommpy | 0:d383e2dee0f7 | 80 | #endif |
ommpy | 0:d383e2dee0f7 | 81 | |
ommpy | 0:d383e2dee0f7 | 82 | int semihost_uid(char *uid); |
ommpy | 0:d383e2dee0f7 | 83 | int semihost_reset(void); |
ommpy | 0:d383e2dee0f7 | 84 | int semihost_vbus(void); |
ommpy | 0:d383e2dee0f7 | 85 | int semihost_powerdown(void); |
ommpy | 0:d383e2dee0f7 | 86 | int semihost_exit(void); |
ommpy | 0:d383e2dee0f7 | 87 | |
ommpy | 0:d383e2dee0f7 | 88 | int semihost_connected(void); |
ommpy | 0:d383e2dee0f7 | 89 | int semihost_disabledebug(void); |
ommpy | 0:d383e2dee0f7 | 90 | |
ommpy | 0:d383e2dee0f7 | 91 | #endif |
ommpy | 0:d383e2dee0f7 | 92 | |
ommpy | 0:d383e2dee0f7 | 93 | #ifdef __cplusplus |
ommpy | 0:d383e2dee0f7 | 94 | } |
ommpy | 0:d383e2dee0f7 | 95 | #endif |
ommpy | 0:d383e2dee0f7 | 96 | |
ommpy | 0:d383e2dee0f7 | 97 | #endif |
ommpy | 0:d383e2dee0f7 | 98 | |
ommpy | 0:d383e2dee0f7 | 99 |