Ricardo Benitez / mbed

meh

Fork of mbed by mbed official

semihost_api.h@57:0480438fc29c, 2013-01-18 (annotated)

Committer:
emilmont
Date:
Fri Jan 18 10:30:14 2013 +0000
Revision:
57:0480438fc29c
Parent:
55:d722ed6a4237
Child:
59:0883845fe643
Add semihosting support for IAR toolchain

Improve IAR stdio retargeting

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 44:24d45a770a51 1 /* mbed Microcontroller Library
emilmont 54:71b101360fb9 2 * Copyright (c) 2006-2013 ARM Limited
emilmont 44:24d45a770a51 3 *
emilmont 44:24d45a770a51 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
emilmont 44:24d45a770a51 5 * of this software and associated documentation files (the "Software"), to deal
emilmont 44:24d45a770a51 6 * in the Software without restriction, including without limitation the rights
emilmont 44:24d45a770a51 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
emilmont 44:24d45a770a51 8 * copies of the Software, and to permit persons to whom the Software is
emilmont 44:24d45a770a51 9 * furnished to do so, subject to the following conditions:
emilmont 44:24d45a770a51 10 *
emilmont 44:24d45a770a51 11 * The above copyright notice and this permission notice shall be included in
emilmont 44:24d45a770a51 12 * all copies or substantial portions of the Software.
emilmont 44:24d45a770a51 13 *
emilmont 44:24d45a770a51 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
emilmont 44:24d45a770a51 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
emilmont 44:24d45a770a51 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
emilmont 44:24d45a770a51 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
emilmont 44:24d45a770a51 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
emilmont 44:24d45a770a51 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
emilmont 44:24d45a770a51 20 * SOFTWARE.
emilmont 44:24d45a770a51 21 */
emilmont 44:24d45a770a51 22 #ifndef MBED_SEMIHOST_H
emilmont 44:24d45a770a51 23 #define MBED_SEMIHOST_H
emilmont 44:24d45a770a51 24
emilmont 44:24d45a770a51 25 #include "device.h"
emilmont 44:24d45a770a51 26 #include "toolchain.h"
emilmont 44:24d45a770a51 27
emilmont 44:24d45a770a51 28 #ifdef __cplusplus
emilmont 44:24d45a770a51 29 extern "C" {
emilmont 44:24d45a770a51 30 #endif
emilmont 44:24d45a770a51 31
emilmont 55:d722ed6a4237 32 #if DEVICE_SEMIHOST
emilmont 57:0480438fc29c 33
emilmont 44:24d45a770a51 34 #ifndef __CC_ARM
emilmont 44:24d45a770a51 35
emilmont 57:0480438fc29c 36 #if defined(__ICCARM__)
emilmont 57:0480438fc29c 37 inline int __semihost(int reason, const void *arg) {
emilmont 57:0480438fc29c 38 return __semihosting(reason, (void*)arg);
emilmont 57:0480438fc29c 39 }
emilmont 57:0480438fc29c 40 #else
emilmont 57:0480438fc29c 41
emilmont 44:24d45a770a51 42 #ifdef __thumb__
emilmont 55:d722ed6a4237 43 # define AngelSWI 0xAB
emilmont 55:d722ed6a4237 44 # define AngelSWIInsn "bkpt"
emilmont 55:d722ed6a4237 45 # define AngelSWIAsm bkpt
emilmont 44:24d45a770a51 46 #else
emilmont 55:d722ed6a4237 47 # define AngelSWI 0x123456
emilmont 55:d722ed6a4237 48 # define AngelSWIInsn "swi"
emilmont 55:d722ed6a4237 49 # define AngelSWIAsm swi
emilmont 44:24d45a770a51 50 #endif
emilmont 44:24d45a770a51 51
emilmont 44:24d45a770a51 52 inline int __semihost(int reason, const void *arg) {
emilmont 44:24d45a770a51 53 int value;
emilmont 57:0480438fc29c 54
emilmont 57:0480438fc29c 55 asm volatile (
emilmont 57:0480438fc29c 56 "mov r0, %1" "\n\t"
emilmont 57:0480438fc29c 57 "mov r1, %2" "\n\t"
emilmont 57:0480438fc29c 58 AngelSWIInsn " %a3" "\n\t"
emilmont 57:0480438fc29c 59 "mov %0, r0"
emilmont 57:0480438fc29c 60 : "=r" (value) /* output operands */
emilmont 57:0480438fc29c 61 : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
emilmont 57:0480438fc29c 62 : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
emilmont 57:0480438fc29c 63 );
emilmont 57:0480438fc29c 64
emilmont 44:24d45a770a51 65 return value;
emilmont 44:24d45a770a51 66 }
emilmont 57:0480438fc29c 67 #endif
emilmont 44:24d45a770a51 68 #endif
emilmont 44:24d45a770a51 69
emilmont 44:24d45a770a51 70 #if DEVICE_LOCALFILESYSTEM
emilmont 44:24d45a770a51 71 FILEHANDLE semihost_open(const char* name, int openmode);
emilmont 44:24d45a770a51 72 int semihost_close (FILEHANDLE fh);
emilmont 44:24d45a770a51 73 int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
emilmont 44:24d45a770a51 74 int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
emilmont 44:24d45a770a51 75 int semihost_ensure(FILEHANDLE fh);
emilmont 44:24d45a770a51 76 long semihost_flen (FILEHANDLE fh);
emilmont 44:24d45a770a51 77 int semihost_seek (FILEHANDLE fh, long position);
emilmont 44:24d45a770a51 78 int semihost_istty (FILEHANDLE fh);
emilmont 44:24d45a770a51 79
emilmont 44:24d45a770a51 80 int semihost_remove(const char *name);
emilmont 44:24d45a770a51 81 int semihost_rename(const char *old_name, const char *new_name);
emilmont 44:24d45a770a51 82 #endif
emilmont 44:24d45a770a51 83
emilmont 44:24d45a770a51 84 int semihost_uid(char *uid);
emilmont 44:24d45a770a51 85 int semihost_reset(void);
emilmont 44:24d45a770a51 86 int semihost_vbus(void);
emilmont 44:24d45a770a51 87 int semihost_powerdown(void);
emilmont 44:24d45a770a51 88 int semihost_exit(void);
emilmont 44:24d45a770a51 89
emilmont 44:24d45a770a51 90 int semihost_connected(void);
emilmont 44:24d45a770a51 91 int semihost_disabledebug(void);
emilmont 44:24d45a770a51 92
emilmont 55:d722ed6a4237 93 #endif
emilmont 55:d722ed6a4237 94
emilmont 44:24d45a770a51 95 #ifdef __cplusplus
emilmont 44:24d45a770a51 96 }
emilmont 44:24d45a770a51 97 #endif
emilmont 44:24d45a770a51 98
emilmont 44:24d45a770a51 99 #endif