PHung Tung / SRC_STM32F7

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common/retarget.cpp@0:e87aa4c49e95, 2019-06-04 (annotated)

Committer:
phungductung
Date:
Tue Jun 04 21:51:46 2019 +0000
Revision:
0:e87aa4c49e95
libray

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UserRevisionLine numberNew contents of line
phungductung 0:e87aa4c49e95 1 /* mbed Microcontroller Library
phungductung 0:e87aa4c49e95 2 * Copyright (c) 2006-2015 ARM Limited
phungductung 0:e87aa4c49e95 3 *
phungductung 0:e87aa4c49e95 4 * Licensed under the Apache License, Version 2.0 (the "License");
phungductung 0:e87aa4c49e95 5 * you may not use this file except in compliance with the License.
phungductung 0:e87aa4c49e95 6 * You may obtain a copy of the License at
phungductung 0:e87aa4c49e95 7 *
phungductung 0:e87aa4c49e95 8 * http://www.apache.org/licenses/LICENSE-2.0
phungductung 0:e87aa4c49e95 9 *
phungductung 0:e87aa4c49e95 10 * Unless required by applicable law or agreed to in writing, software
phungductung 0:e87aa4c49e95 11 * distributed under the License is distributed on an "AS IS" BASIS,
phungductung 0:e87aa4c49e95 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
phungductung 0:e87aa4c49e95 13 * See the License for the specific language governing permissions and
phungductung 0:e87aa4c49e95 14 * limitations under the License.
phungductung 0:e87aa4c49e95 15 */
phungductung 0:e87aa4c49e95 16 #include "platform.h"
phungductung 0:e87aa4c49e95 17 #include "FileHandle.h"
phungductung 0:e87aa4c49e95 18 #include "FileSystemLike.h"
phungductung 0:e87aa4c49e95 19 #include "FilePath.h"
phungductung 0:e87aa4c49e95 20 #include "serial_api.h"
phungductung 0:e87aa4c49e95 21 #include "toolchain.h"
phungductung 0:e87aa4c49e95 22 #include "semihost_api.h"
phungductung 0:e87aa4c49e95 23 #include "mbed_interface.h"
phungductung 0:e87aa4c49e95 24 #if DEVICE_STDIO_MESSAGES
phungductung 0:e87aa4c49e95 25 #include <stdio.h>
phungductung 0:e87aa4c49e95 26 #endif
phungductung 0:e87aa4c49e95 27 #include <errno.h>
phungductung 0:e87aa4c49e95 28
phungductung 0:e87aa4c49e95 29 #if defined(__ARMCC_VERSION)
phungductung 0:e87aa4c49e95 30 # include <rt_sys.h>
phungductung 0:e87aa4c49e95 31 # define PREFIX(x) _sys##x
phungductung 0:e87aa4c49e95 32 # define OPEN_MAX _SYS_OPEN
phungductung 0:e87aa4c49e95 33 # ifdef __MICROLIB
phungductung 0:e87aa4c49e95 34 # pragma import(__use_full_stdio)
phungductung 0:e87aa4c49e95 35 # endif
phungductung 0:e87aa4c49e95 36
phungductung 0:e87aa4c49e95 37 #elif defined(__ICCARM__)
phungductung 0:e87aa4c49e95 38 # include <yfuns.h>
phungductung 0:e87aa4c49e95 39 # define PREFIX(x) _##x
phungductung 0:e87aa4c49e95 40 # define OPEN_MAX 16
phungductung 0:e87aa4c49e95 41
phungductung 0:e87aa4c49e95 42 # define STDIN_FILENO 0
phungductung 0:e87aa4c49e95 43 # define STDOUT_FILENO 1
phungductung 0:e87aa4c49e95 44 # define STDERR_FILENO 2
phungductung 0:e87aa4c49e95 45
phungductung 0:e87aa4c49e95 46 #else
phungductung 0:e87aa4c49e95 47 # include <sys/stat.h>
phungductung 0:e87aa4c49e95 48 # include <sys/unistd.h>
phungductung 0:e87aa4c49e95 49 # include <sys/syslimits.h>
phungductung 0:e87aa4c49e95 50 # define PREFIX(x) x
phungductung 0:e87aa4c49e95 51 #endif
phungductung 0:e87aa4c49e95 52
phungductung 0:e87aa4c49e95 53 using namespace mbed;
phungductung 0:e87aa4c49e95 54
phungductung 0:e87aa4c49e95 55 #if defined(__MICROLIB) && (__ARMCC_VERSION>5030000)
phungductung 0:e87aa4c49e95 56 // Before version 5.03, we were using a patched version of microlib with proper names
phungductung 0:e87aa4c49e95 57 extern const char __stdin_name[] = ":tt";
phungductung 0:e87aa4c49e95 58 extern const char __stdout_name[] = ":tt";
phungductung 0:e87aa4c49e95 59 extern const char __stderr_name[] = ":tt";
phungductung 0:e87aa4c49e95 60
phungductung 0:e87aa4c49e95 61 #else
phungductung 0:e87aa4c49e95 62 extern const char __stdin_name[] = "/stdin";
phungductung 0:e87aa4c49e95 63 extern const char __stdout_name[] = "/stdout";
phungductung 0:e87aa4c49e95 64 extern const char __stderr_name[] = "/stderr";
phungductung 0:e87aa4c49e95 65 #endif
phungductung 0:e87aa4c49e95 66
phungductung 0:e87aa4c49e95 67 /* newlib has the filehandle field in the FILE struct as a short, so
phungductung 0:e87aa4c49e95 68 * we can't just return a Filehandle* from _open and instead have to
phungductung 0:e87aa4c49e95 69 * put it in a filehandles array and return the index into that array
phungductung 0:e87aa4c49e95 70 * (or rather index+3, as filehandles 0-2 are stdin/out/err).
phungductung 0:e87aa4c49e95 71 */
phungductung 0:e87aa4c49e95 72 static FileHandle *filehandles[OPEN_MAX];
phungductung 0:e87aa4c49e95 73
phungductung 0:e87aa4c49e95 74 FileHandle::~FileHandle() {
phungductung 0:e87aa4c49e95 75 /* Remove all open filehandles for this */
phungductung 0:e87aa4c49e95 76 for (unsigned int fh_i = 0; fh_i < sizeof(filehandles)/sizeof(*filehandles); fh_i++) {
phungductung 0:e87aa4c49e95 77 if (filehandles[fh_i] == this) {
phungductung 0:e87aa4c49e95 78 filehandles[fh_i] = NULL;
phungductung 0:e87aa4c49e95 79 }
phungductung 0:e87aa4c49e95 80 }
phungductung 0:e87aa4c49e95 81 }
phungductung 0:e87aa4c49e95 82
phungductung 0:e87aa4c49e95 83 #if DEVICE_SERIAL
phungductung 0:e87aa4c49e95 84 extern int stdio_uart_inited;
phungductung 0:e87aa4c49e95 85 extern serial_t stdio_uart;
phungductung 0:e87aa4c49e95 86 #endif
phungductung 0:e87aa4c49e95 87
phungductung 0:e87aa4c49e95 88 static void init_serial() {
phungductung 0:e87aa4c49e95 89 #if DEVICE_SERIAL
phungductung 0:e87aa4c49e95 90 if (stdio_uart_inited) return;
phungductung 0:e87aa4c49e95 91 serial_init(&stdio_uart, STDIO_UART_TX, STDIO_UART_RX);
phungductung 0:e87aa4c49e95 92 #endif
phungductung 0:e87aa4c49e95 93 }
phungductung 0:e87aa4c49e95 94
phungductung 0:e87aa4c49e95 95 static inline int openmode_to_posix(int openmode) {
phungductung 0:e87aa4c49e95 96 int posix = openmode;
phungductung 0:e87aa4c49e95 97 #ifdef __ARMCC_VERSION
phungductung 0:e87aa4c49e95 98 if (openmode & OPEN_PLUS) {
phungductung 0:e87aa4c49e95 99 posix = O_RDWR;
phungductung 0:e87aa4c49e95 100 } else if(openmode & OPEN_W) {
phungductung 0:e87aa4c49e95 101 posix = O_WRONLY;
phungductung 0:e87aa4c49e95 102 } else if(openmode & OPEN_A) {
phungductung 0:e87aa4c49e95 103 posix = O_WRONLY|O_APPEND;
phungductung 0:e87aa4c49e95 104 } else {
phungductung 0:e87aa4c49e95 105 posix = O_RDONLY;
phungductung 0:e87aa4c49e95 106 }
phungductung 0:e87aa4c49e95 107 /* a, w, a+, w+ all create if file does not already exist */
phungductung 0:e87aa4c49e95 108 if (openmode & (OPEN_A|OPEN_W)) {
phungductung 0:e87aa4c49e95 109 posix |= O_CREAT;
phungductung 0:e87aa4c49e95 110 }
phungductung 0:e87aa4c49e95 111 /* w and w+ truncate */
phungductung 0:e87aa4c49e95 112 if (openmode & OPEN_W) {
phungductung 0:e87aa4c49e95 113 posix |= O_TRUNC;
phungductung 0:e87aa4c49e95 114 }
phungductung 0:e87aa4c49e95 115 #elif defined(__ICCARM__)
phungductung 0:e87aa4c49e95 116 switch (openmode & _LLIO_RDWRMASK) {
phungductung 0:e87aa4c49e95 117 case _LLIO_RDONLY: posix = O_RDONLY; break;
phungductung 0:e87aa4c49e95 118 case _LLIO_WRONLY: posix = O_WRONLY; break;
phungductung 0:e87aa4c49e95 119 case _LLIO_RDWR : posix = O_RDWR ; break;
phungductung 0:e87aa4c49e95 120 }
phungductung 0:e87aa4c49e95 121 if (openmode & _LLIO_CREAT ) posix |= O_CREAT;
phungductung 0:e87aa4c49e95 122 if (openmode & _LLIO_APPEND) posix |= O_APPEND;
phungductung 0:e87aa4c49e95 123 if (openmode & _LLIO_TRUNC ) posix |= O_TRUNC;
phungductung 0:e87aa4c49e95 124 #elif defined(TOOLCHAIN_GCC)
phungductung 0:e87aa4c49e95 125 posix &= ~O_BINARY;
phungductung 0:e87aa4c49e95 126 #endif
phungductung 0:e87aa4c49e95 127 return posix;
phungductung 0:e87aa4c49e95 128 }
phungductung 0:e87aa4c49e95 129
phungductung 0:e87aa4c49e95 130 extern "C" FILEHANDLE PREFIX(_open)(const char* name, int openmode) {
phungductung 0:e87aa4c49e95 131 #if defined(__MICROLIB) && (__ARMCC_VERSION>5030000)
phungductung 0:e87aa4c49e95 132 // Before version 5.03, we were using a patched version of microlib with proper names
phungductung 0:e87aa4c49e95 133 // This is the workaround that the microlib author suggested us
phungductung 0:e87aa4c49e95 134 static int n = 0;
phungductung 0:e87aa4c49e95 135 if (!std::strcmp(name, ":tt")) return n++;
phungductung 0:e87aa4c49e95 136
phungductung 0:e87aa4c49e95 137 #else
phungductung 0:e87aa4c49e95 138 /* Use the posix convention that stdin,out,err are filehandles 0,1,2.
phungductung 0:e87aa4c49e95 139 */
phungductung 0:e87aa4c49e95 140 if (std::strcmp(name, __stdin_name) == 0) {
phungductung 0:e87aa4c49e95 141 init_serial();
phungductung 0:e87aa4c49e95 142 return 0;
phungductung 0:e87aa4c49e95 143 } else if (std::strcmp(name, __stdout_name) == 0) {
phungductung 0:e87aa4c49e95 144 init_serial();
phungductung 0:e87aa4c49e95 145 return 1;
phungductung 0:e87aa4c49e95 146 } else if (std::strcmp(name, __stderr_name) == 0) {
phungductung 0:e87aa4c49e95 147 init_serial();
phungductung 0:e87aa4c49e95 148 return 2;
phungductung 0:e87aa4c49e95 149 }
phungductung 0:e87aa4c49e95 150 #endif
phungductung 0:e87aa4c49e95 151
phungductung 0:e87aa4c49e95 152 // find the first empty slot in filehandles
phungductung 0:e87aa4c49e95 153 unsigned int fh_i;
phungductung 0:e87aa4c49e95 154 for (fh_i = 0; fh_i < sizeof(filehandles)/sizeof(*filehandles); fh_i++) {
phungductung 0:e87aa4c49e95 155 if (filehandles[fh_i] == NULL) break;
phungductung 0:e87aa4c49e95 156 }
phungductung 0:e87aa4c49e95 157 if (fh_i >= sizeof(filehandles)/sizeof(*filehandles)) {
phungductung 0:e87aa4c49e95 158 return -1;
phungductung 0:e87aa4c49e95 159 }
phungductung 0:e87aa4c49e95 160
phungductung 0:e87aa4c49e95 161 FileHandle *res;
phungductung 0:e87aa4c49e95 162
phungductung 0:e87aa4c49e95 163 /* FILENAME: ":0x12345678" describes a FileLike* */
phungductung 0:e87aa4c49e95 164 if (name[0] == ':') {
phungductung 0:e87aa4c49e95 165 void *p;
phungductung 0:e87aa4c49e95 166 sscanf(name, ":%p", &p);
phungductung 0:e87aa4c49e95 167 res = (FileHandle*)p;
phungductung 0:e87aa4c49e95 168
phungductung 0:e87aa4c49e95 169 /* FILENAME: "/file_system/file_name" */
phungductung 0:e87aa4c49e95 170 } else {
phungductung 0:e87aa4c49e95 171 FilePath path(name);
phungductung 0:e87aa4c49e95 172
phungductung 0:e87aa4c49e95 173 if (!path.exists())
phungductung 0:e87aa4c49e95 174 return -1;
phungductung 0:e87aa4c49e95 175 else if (path.isFile()) {
phungductung 0:e87aa4c49e95 176 res = path.file();
phungductung 0:e87aa4c49e95 177 } else {
phungductung 0:e87aa4c49e95 178 FileSystemLike *fs = path.fileSystem();
phungductung 0:e87aa4c49e95 179 if (fs == NULL) return -1;
phungductung 0:e87aa4c49e95 180 int posix_mode = openmode_to_posix(openmode);
phungductung 0:e87aa4c49e95 181 res = fs->open(path.fileName(), posix_mode); /* NULL if fails */
phungductung 0:e87aa4c49e95 182 }
phungductung 0:e87aa4c49e95 183 }
phungductung 0:e87aa4c49e95 184
phungductung 0:e87aa4c49e95 185 if (res == NULL) return -1;
phungductung 0:e87aa4c49e95 186 filehandles[fh_i] = res;
phungductung 0:e87aa4c49e95 187
phungductung 0:e87aa4c49e95 188 return fh_i + 3; // +3 as filehandles 0-2 are stdin/out/err
phungductung 0:e87aa4c49e95 189 }
phungductung 0:e87aa4c49e95 190
phungductung 0:e87aa4c49e95 191 extern "C" int PREFIX(_close)(FILEHANDLE fh) {
phungductung 0:e87aa4c49e95 192 if (fh < 3) return 0;
phungductung 0:e87aa4c49e95 193
phungductung 0:e87aa4c49e95 194 FileHandle* fhc = filehandles[fh-3];
phungductung 0:e87aa4c49e95 195 filehandles[fh-3] = NULL;
phungductung 0:e87aa4c49e95 196 if (fhc == NULL) return -1;
phungductung 0:e87aa4c49e95 197
phungductung 0:e87aa4c49e95 198 return fhc->close();
phungductung 0:e87aa4c49e95 199 }
phungductung 0:e87aa4c49e95 200
phungductung 0:e87aa4c49e95 201 #if defined(__ICCARM__)
phungductung 0:e87aa4c49e95 202 extern "C" size_t __write (int fh, const unsigned char *buffer, size_t length) {
phungductung 0:e87aa4c49e95 203 #else
phungductung 0:e87aa4c49e95 204 extern "C" int PREFIX(_write)(FILEHANDLE fh, const unsigned char *buffer, unsigned int length, int mode) {
phungductung 0:e87aa4c49e95 205 #endif
phungductung 0:e87aa4c49e95 206 int n; // n is the number of bytes written
phungductung 0:e87aa4c49e95 207 if (fh < 3) {
phungductung 0:e87aa4c49e95 208 #if DEVICE_SERIAL
phungductung 0:e87aa4c49e95 209 if (!stdio_uart_inited) init_serial();
phungductung 0:e87aa4c49e95 210 for (unsigned int i = 0; i < length; i++) {
phungductung 0:e87aa4c49e95 211 serial_putc(&stdio_uart, buffer[i]);
phungductung 0:e87aa4c49e95 212 }
phungductung 0:e87aa4c49e95 213 #endif
phungductung 0:e87aa4c49e95 214 n = length;
phungductung 0:e87aa4c49e95 215 } else {
phungductung 0:e87aa4c49e95 216 FileHandle* fhc = filehandles[fh-3];
phungductung 0:e87aa4c49e95 217 if (fhc == NULL) return -1;
phungductung 0:e87aa4c49e95 218
phungductung 0:e87aa4c49e95 219 n = fhc->write(buffer, length);
phungductung 0:e87aa4c49e95 220 }
phungductung 0:e87aa4c49e95 221 #ifdef __ARMCC_VERSION
phungductung 0:e87aa4c49e95 222 return length-n;
phungductung 0:e87aa4c49e95 223 #else
phungductung 0:e87aa4c49e95 224 return n;
phungductung 0:e87aa4c49e95 225 #endif
phungductung 0:e87aa4c49e95 226 }
phungductung 0:e87aa4c49e95 227
phungductung 0:e87aa4c49e95 228 #if defined(__ICCARM__)
phungductung 0:e87aa4c49e95 229 extern "C" size_t __read (int fh, unsigned char *buffer, size_t length) {
phungductung 0:e87aa4c49e95 230 #else
phungductung 0:e87aa4c49e95 231 extern "C" int PREFIX(_read)(FILEHANDLE fh, unsigned char *buffer, unsigned int length, int mode) {
phungductung 0:e87aa4c49e95 232 #endif
phungductung 0:e87aa4c49e95 233 int n; // n is the number of bytes read
phungductung 0:e87aa4c49e95 234 if (fh < 3) {
phungductung 0:e87aa4c49e95 235 // only read a character at a time from stdin
phungductung 0:e87aa4c49e95 236 #if DEVICE_SERIAL
phungductung 0:e87aa4c49e95 237 if (!stdio_uart_inited) init_serial();
phungductung 0:e87aa4c49e95 238 *buffer = serial_getc(&stdio_uart);
phungductung 0:e87aa4c49e95 239 #endif
phungductung 0:e87aa4c49e95 240 n = 1;
phungductung 0:e87aa4c49e95 241 } else {
phungductung 0:e87aa4c49e95 242 FileHandle* fhc = filehandles[fh-3];
phungductung 0:e87aa4c49e95 243 if (fhc == NULL) return -1;
phungductung 0:e87aa4c49e95 244
phungductung 0:e87aa4c49e95 245 n = fhc->read(buffer, length);
phungductung 0:e87aa4c49e95 246 }
phungductung 0:e87aa4c49e95 247 #ifdef __ARMCC_VERSION
phungductung 0:e87aa4c49e95 248 return length-n;
phungductung 0:e87aa4c49e95 249 #else
phungductung 0:e87aa4c49e95 250 return n;
phungductung 0:e87aa4c49e95 251 #endif
phungductung 0:e87aa4c49e95 252 }
phungductung 0:e87aa4c49e95 253
phungductung 0:e87aa4c49e95 254 #ifdef __ARMCC_VERSION
phungductung 0:e87aa4c49e95 255 extern "C" int PREFIX(_istty)(FILEHANDLE fh)
phungductung 0:e87aa4c49e95 256 #else
phungductung 0:e87aa4c49e95 257 extern "C" int _isatty(FILEHANDLE fh)
phungductung 0:e87aa4c49e95 258 #endif
phungductung 0:e87aa4c49e95 259 {
phungductung 0:e87aa4c49e95 260 /* stdin, stdout and stderr should be tty */
phungductung 0:e87aa4c49e95 261 if (fh < 3) return 1;
phungductung 0:e87aa4c49e95 262
phungductung 0:e87aa4c49e95 263 FileHandle* fhc = filehandles[fh-3];
phungductung 0:e87aa4c49e95 264 if (fhc == NULL) return -1;
phungductung 0:e87aa4c49e95 265
phungductung 0:e87aa4c49e95 266 return fhc->isatty();
phungductung 0:e87aa4c49e95 267 }
phungductung 0:e87aa4c49e95 268
phungductung 0:e87aa4c49e95 269 extern "C"
phungductung 0:e87aa4c49e95 270 #if defined(__ARMCC_VERSION)
phungductung 0:e87aa4c49e95 271 int _sys_seek(FILEHANDLE fh, long position)
phungductung 0:e87aa4c49e95 272 #elif defined(__ICCARM__)
phungductung 0:e87aa4c49e95 273 long __lseek(int fh, long offset, int whence)
phungductung 0:e87aa4c49e95 274 #else
phungductung 0:e87aa4c49e95 275 int _lseek(FILEHANDLE fh, int offset, int whence)
phungductung 0:e87aa4c49e95 276 #endif
phungductung 0:e87aa4c49e95 277 {
phungductung 0:e87aa4c49e95 278 if (fh < 3) return 0;
phungductung 0:e87aa4c49e95 279
phungductung 0:e87aa4c49e95 280 FileHandle* fhc = filehandles[fh-3];
phungductung 0:e87aa4c49e95 281 if (fhc == NULL) return -1;
phungductung 0:e87aa4c49e95 282
phungductung 0:e87aa4c49e95 283 #if defined(__ARMCC_VERSION)
phungductung 0:e87aa4c49e95 284 return fhc->lseek(position, SEEK_SET);
phungductung 0:e87aa4c49e95 285 #else
phungductung 0:e87aa4c49e95 286 return fhc->lseek(offset, whence);
phungductung 0:e87aa4c49e95 287 #endif
phungductung 0:e87aa4c49e95 288 }
phungductung 0:e87aa4c49e95 289
phungductung 0:e87aa4c49e95 290 #ifdef __ARMCC_VERSION
phungductung 0:e87aa4c49e95 291 extern "C" int PREFIX(_ensure)(FILEHANDLE fh) {
phungductung 0:e87aa4c49e95 292 if (fh < 3) return 0;
phungductung 0:e87aa4c49e95 293
phungductung 0:e87aa4c49e95 294 FileHandle* fhc = filehandles[fh-3];
phungductung 0:e87aa4c49e95 295 if (fhc == NULL) return -1;
phungductung 0:e87aa4c49e95 296
phungductung 0:e87aa4c49e95 297 return fhc->fsync();
phungductung 0:e87aa4c49e95 298 }
phungductung 0:e87aa4c49e95 299
phungductung 0:e87aa4c49e95 300 extern "C" long PREFIX(_flen)(FILEHANDLE fh) {
phungductung 0:e87aa4c49e95 301 if (fh < 3) return 0;
phungductung 0:e87aa4c49e95 302
phungductung 0:e87aa4c49e95 303 FileHandle* fhc = filehandles[fh-3];
phungductung 0:e87aa4c49e95 304 if (fhc == NULL) return -1;
phungductung 0:e87aa4c49e95 305
phungductung 0:e87aa4c49e95 306 return fhc->flen();
phungductung 0:e87aa4c49e95 307 }
phungductung 0:e87aa4c49e95 308 #endif
phungductung 0:e87aa4c49e95 309
phungductung 0:e87aa4c49e95 310
phungductung 0:e87aa4c49e95 311 #if !defined(__ARMCC_VERSION) && !defined(__ICCARM__)
phungductung 0:e87aa4c49e95 312 extern "C" int _fstat(int fd, struct stat *st) {
phungductung 0:e87aa4c49e95 313 if ((STDOUT_FILENO == fd) || (STDERR_FILENO == fd) || (STDIN_FILENO == fd)) {
phungductung 0:e87aa4c49e95 314 st->st_mode = S_IFCHR;
phungductung 0:e87aa4c49e95 315 return 0;
phungductung 0:e87aa4c49e95 316 }
phungductung 0:e87aa4c49e95 317
phungductung 0:e87aa4c49e95 318 errno = EBADF;
phungductung 0:e87aa4c49e95 319 return -1;
phungductung 0:e87aa4c49e95 320 }
phungductung 0:e87aa4c49e95 321 #endif
phungductung 0:e87aa4c49e95 322
phungductung 0:e87aa4c49e95 323 namespace std {
phungductung 0:e87aa4c49e95 324 extern "C" int remove(const char *path) {
phungductung 0:e87aa4c49e95 325 FilePath fp(path);
phungductung 0:e87aa4c49e95 326 FileSystemLike *fs = fp.fileSystem();
phungductung 0:e87aa4c49e95 327 if (fs == NULL) return -1;
phungductung 0:e87aa4c49e95 328
phungductung 0:e87aa4c49e95 329 return fs->remove(fp.fileName());
phungductung 0:e87aa4c49e95 330 }
phungductung 0:e87aa4c49e95 331
phungductung 0:e87aa4c49e95 332 extern "C" int rename(const char *oldname, const char *newname) {
phungductung 0:e87aa4c49e95 333 FilePath fpOld(oldname);
phungductung 0:e87aa4c49e95 334 FilePath fpNew(newname);
phungductung 0:e87aa4c49e95 335 FileSystemLike *fsOld = fpOld.fileSystem();
phungductung 0:e87aa4c49e95 336 FileSystemLike *fsNew = fpNew.fileSystem();
phungductung 0:e87aa4c49e95 337
phungductung 0:e87aa4c49e95 338 /* rename only if both files are on the same FS */
phungductung 0:e87aa4c49e95 339 if (fsOld != fsNew || fsOld == NULL) return -1;
phungductung 0:e87aa4c49e95 340
phungductung 0:e87aa4c49e95 341 return fsOld->rename(fpOld.fileName(), fpNew.fileName());
phungductung 0:e87aa4c49e95 342 }
phungductung 0:e87aa4c49e95 343
phungductung 0:e87aa4c49e95 344 extern "C" char *tmpnam(char *s) {
phungductung 0:e87aa4c49e95 345 return NULL;
phungductung 0:e87aa4c49e95 346 }
phungductung 0:e87aa4c49e95 347
phungductung 0:e87aa4c49e95 348 extern "C" FILE *tmpfile() {
phungductung 0:e87aa4c49e95 349 return NULL;
phungductung 0:e87aa4c49e95 350 }
phungductung 0:e87aa4c49e95 351 } // namespace std
phungductung 0:e87aa4c49e95 352
phungductung 0:e87aa4c49e95 353 #ifdef __ARMCC_VERSION
phungductung 0:e87aa4c49e95 354 extern "C" char *_sys_command_string(char *cmd, int len) {
phungductung 0:e87aa4c49e95 355 return NULL;
phungductung 0:e87aa4c49e95 356 }
phungductung 0:e87aa4c49e95 357 #endif
phungductung 0:e87aa4c49e95 358
phungductung 0:e87aa4c49e95 359 extern "C" DIR *opendir(const char *path) {
phungductung 0:e87aa4c49e95 360 /* root dir is FileSystemLike */
phungductung 0:e87aa4c49e95 361 if (path[0] == '/' && path[1] == 0) {
phungductung 0:e87aa4c49e95 362 return FileSystemLike::opendir();
phungductung 0:e87aa4c49e95 363 }
phungductung 0:e87aa4c49e95 364
phungductung 0:e87aa4c49e95 365 FilePath fp(path);
phungductung 0:e87aa4c49e95 366 FileSystemLike* fs = fp.fileSystem();
phungductung 0:e87aa4c49e95 367 if (fs == NULL) return NULL;
phungductung 0:e87aa4c49e95 368
phungductung 0:e87aa4c49e95 369 return fs->opendir(fp.fileName());
phungductung 0:e87aa4c49e95 370 }
phungductung 0:e87aa4c49e95 371
phungductung 0:e87aa4c49e95 372 extern "C" struct dirent *readdir(DIR *dir) {
phungductung 0:e87aa4c49e95 373 return dir->readdir();
phungductung 0:e87aa4c49e95 374 }
phungductung 0:e87aa4c49e95 375
phungductung 0:e87aa4c49e95 376 extern "C" int closedir(DIR *dir) {
phungductung 0:e87aa4c49e95 377 return dir->closedir();
phungductung 0:e87aa4c49e95 378 }
phungductung 0:e87aa4c49e95 379
phungductung 0:e87aa4c49e95 380 extern "C" void rewinddir(DIR *dir) {
phungductung 0:e87aa4c49e95 381 dir->rewinddir();
phungductung 0:e87aa4c49e95 382 }
phungductung 0:e87aa4c49e95 383
phungductung 0:e87aa4c49e95 384 extern "C" off_t telldir(DIR *dir) {
phungductung 0:e87aa4c49e95 385 return dir->telldir();
phungductung 0:e87aa4c49e95 386 }
phungductung 0:e87aa4c49e95 387
phungductung 0:e87aa4c49e95 388 extern "C" void seekdir(DIR *dir, off_t off) {
phungductung 0:e87aa4c49e95 389 dir->seekdir(off);
phungductung 0:e87aa4c49e95 390 }
phungductung 0:e87aa4c49e95 391
phungductung 0:e87aa4c49e95 392 extern "C" int mkdir(const char *path, mode_t mode) {
phungductung 0:e87aa4c49e95 393 FilePath fp(path);
phungductung 0:e87aa4c49e95 394 FileSystemLike *fs = fp.fileSystem();
phungductung 0:e87aa4c49e95 395 if (fs == NULL) return -1;
phungductung 0:e87aa4c49e95 396
phungductung 0:e87aa4c49e95 397 return fs->mkdir(fp.fileName(), mode);
phungductung 0:e87aa4c49e95 398 }
phungductung 0:e87aa4c49e95 399
phungductung 0:e87aa4c49e95 400 #if defined(TOOLCHAIN_GCC)
phungductung 0:e87aa4c49e95 401 /* prevents the exception handling name demangling code getting pulled in */
phungductung 0:e87aa4c49e95 402 #include "mbed_error.h"
phungductung 0:e87aa4c49e95 403 namespace __gnu_cxx {
phungductung 0:e87aa4c49e95 404 void __verbose_terminate_handler() {
phungductung 0:e87aa4c49e95 405 error("Exception");
phungductung 0:e87aa4c49e95 406 }
phungductung 0:e87aa4c49e95 407 }
phungductung 0:e87aa4c49e95 408 extern "C" WEAK void __cxa_pure_virtual(void);
phungductung 0:e87aa4c49e95 409 extern "C" WEAK void __cxa_pure_virtual(void) {
phungductung 0:e87aa4c49e95 410 exit(1);
phungductung 0:e87aa4c49e95 411 }
phungductung 0:e87aa4c49e95 412
phungductung 0:e87aa4c49e95 413 #endif
phungductung 0:e87aa4c49e95 414
phungductung 0:e87aa4c49e95 415 // ****************************************************************************
phungductung 0:e87aa4c49e95 416 // mbed_main is a function that is called before main()
phungductung 0:e87aa4c49e95 417 // mbed_sdk_init() is also a function that is called before main(), but unlike
phungductung 0:e87aa4c49e95 418 // mbed_main(), it is not meant for user code, but for the SDK itself to perform
phungductung 0:e87aa4c49e95 419 // initializations before main() is called.
phungductung 0:e87aa4c49e95 420
phungductung 0:e87aa4c49e95 421 extern "C" WEAK void mbed_main(void);
phungductung 0:e87aa4c49e95 422 extern "C" WEAK void mbed_main(void) {
phungductung 0:e87aa4c49e95 423 }
phungductung 0:e87aa4c49e95 424
phungductung 0:e87aa4c49e95 425 extern "C" WEAK void mbed_sdk_init(void);
phungductung 0:e87aa4c49e95 426 extern "C" WEAK void mbed_sdk_init(void) {
phungductung 0:e87aa4c49e95 427 }
phungductung 0:e87aa4c49e95 428
phungductung 0:e87aa4c49e95 429 #if defined(TOOLCHAIN_ARM)
phungductung 0:e87aa4c49e95 430 extern "C" int $Super$$main(void);
phungductung 0:e87aa4c49e95 431
phungductung 0:e87aa4c49e95 432 extern "C" int $Sub$$main(void) {
phungductung 0:e87aa4c49e95 433 mbed_sdk_init();
phungductung 0:e87aa4c49e95 434 mbed_main();
phungductung 0:e87aa4c49e95 435 return $Super$$main();
phungductung 0:e87aa4c49e95 436 }
phungductung 0:e87aa4c49e95 437 #elif defined(TOOLCHAIN_GCC)
phungductung 0:e87aa4c49e95 438 extern "C" int __real_main(void);
phungductung 0:e87aa4c49e95 439
phungductung 0:e87aa4c49e95 440 extern "C" int __wrap_main(void) {
phungductung 0:e87aa4c49e95 441 mbed_sdk_init();
phungductung 0:e87aa4c49e95 442 mbed_main();
phungductung 0:e87aa4c49e95 443 return __real_main();
phungductung 0:e87aa4c49e95 444 }
phungductung 0:e87aa4c49e95 445 #elif defined(TOOLCHAIN_IAR)
phungductung 0:e87aa4c49e95 446 // IAR doesn't have the $Super/$Sub mechanism of armcc, nor something equivalent
phungductung 0:e87aa4c49e95 447 // to ld's --wrap. It does have a --redirect, but that doesn't help, since redirecting
phungductung 0:e87aa4c49e95 448 // 'main' to another symbol looses the original 'main' symbol. However, its startup
phungductung 0:e87aa4c49e95 449 // code will call a function to setup argc and argv (__iar_argc_argv) if it is defined.
phungductung 0:e87aa4c49e95 450 // Since mbed doesn't use argc/argv, we use this function to call our mbed_main.
phungductung 0:e87aa4c49e95 451 extern "C" void __iar_argc_argv() {
phungductung 0:e87aa4c49e95 452 mbed_sdk_init();
phungductung 0:e87aa4c49e95 453 mbed_main();
phungductung 0:e87aa4c49e95 454 }
phungductung 0:e87aa4c49e95 455 #endif
phungductung 0:e87aa4c49e95 456
phungductung 0:e87aa4c49e95 457 // Provide implementation of _sbrk (low-level dynamic memory allocation
phungductung 0:e87aa4c49e95 458 // routine) for GCC_ARM which compares new heap pointer with MSP instead of
phungductung 0:e87aa4c49e95 459 // SP. This make it compatible with RTX RTOS thread stacks.
phungductung 0:e87aa4c49e95 460 #if defined(TOOLCHAIN_GCC_ARM)
phungductung 0:e87aa4c49e95 461 // Linker defined symbol used by _sbrk to indicate where heap should start.
phungductung 0:e87aa4c49e95 462 extern "C" int __end__;
phungductung 0:e87aa4c49e95 463
phungductung 0:e87aa4c49e95 464 #if defined(TARGET_CORTEX_A)
phungductung 0:e87aa4c49e95 465 extern "C" uint32_t __HeapLimit;
phungductung 0:e87aa4c49e95 466 #endif
phungductung 0:e87aa4c49e95 467
phungductung 0:e87aa4c49e95 468 // Turn off the errno macro and use actual global variable instead.
phungductung 0:e87aa4c49e95 469 #undef errno
phungductung 0:e87aa4c49e95 470 extern "C" int errno;
phungductung 0:e87aa4c49e95 471
phungductung 0:e87aa4c49e95 472 // For ARM7 only
phungductung 0:e87aa4c49e95 473 register unsigned char * stack_ptr __asm ("sp");
phungductung 0:e87aa4c49e95 474
phungductung 0:e87aa4c49e95 475 // Dynamic memory allocation related syscall.
phungductung 0:e87aa4c49e95 476 extern "C" caddr_t _sbrk(int incr) {
phungductung 0:e87aa4c49e95 477 static unsigned char* heap = (unsigned char*)&__end__;
phungductung 0:e87aa4c49e95 478 unsigned char* prev_heap = heap;
phungductung 0:e87aa4c49e95 479 unsigned char* new_heap = heap + incr;
phungductung 0:e87aa4c49e95 480
phungductung 0:e87aa4c49e95 481 #if defined(TARGET_ARM7)
phungductung 0:e87aa4c49e95 482 if (new_heap >= stack_ptr) {
phungductung 0:e87aa4c49e95 483 #elif defined(TARGET_CORTEX_A)
phungductung 0:e87aa4c49e95 484 if (new_heap >= (unsigned char*)&__HeapLimit) { /* __HeapLimit is end of heap section */
phungductung 0:e87aa4c49e95 485 #else
phungductung 0:e87aa4c49e95 486 if (new_heap >= (unsigned char*)__get_MSP()) {
phungductung 0:e87aa4c49e95 487 #endif
phungductung 0:e87aa4c49e95 488 errno = ENOMEM;
phungductung 0:e87aa4c49e95 489 return (caddr_t)-1;
phungductung 0:e87aa4c49e95 490 }
phungductung 0:e87aa4c49e95 491
phungductung 0:e87aa4c49e95 492 heap = new_heap;
phungductung 0:e87aa4c49e95 493 return (caddr_t) prev_heap;
phungductung 0:e87aa4c49e95 494 }
phungductung 0:e87aa4c49e95 495 #endif
phungductung 0:e87aa4c49e95 496
phungductung 0:e87aa4c49e95 497
phungductung 0:e87aa4c49e95 498 #if defined TOOLCHAIN_GCC_ARM
phungductung 0:e87aa4c49e95 499 extern "C" void _exit(int return_code) {
phungductung 0:e87aa4c49e95 500 #else
phungductung 0:e87aa4c49e95 501 namespace std {
phungductung 0:e87aa4c49e95 502 extern "C" void exit(int return_code) {
phungductung 0:e87aa4c49e95 503 #endif
phungductung 0:e87aa4c49e95 504
phungductung 0:e87aa4c49e95 505 #if DEVICE_STDIO_MESSAGES
phungductung 0:e87aa4c49e95 506 fflush(stdout);
phungductung 0:e87aa4c49e95 507 fflush(stderr);
phungductung 0:e87aa4c49e95 508 #endif
phungductung 0:e87aa4c49e95 509
phungductung 0:e87aa4c49e95 510 #if DEVICE_SEMIHOST
phungductung 0:e87aa4c49e95 511 if (mbed_interface_connected()) {
phungductung 0:e87aa4c49e95 512 semihost_exit();
phungductung 0:e87aa4c49e95 513 }
phungductung 0:e87aa4c49e95 514 #endif
phungductung 0:e87aa4c49e95 515 if (return_code) {
phungductung 0:e87aa4c49e95 516 mbed_die();
phungductung 0:e87aa4c49e95 517 }
phungductung 0:e87aa4c49e95 518
phungductung 0:e87aa4c49e95 519 while (1);
phungductung 0:e87aa4c49e95 520 }
phungductung 0:e87aa4c49e95 521
phungductung 0:e87aa4c49e95 522 #if !defined(TOOLCHAIN_GCC_ARM)
phungductung 0:e87aa4c49e95 523 } //namespace std
phungductung 0:e87aa4c49e95 524 #endif
phungductung 0:e87aa4c49e95 525
phungductung 0:e87aa4c49e95 526
phungductung 0:e87aa4c49e95 527 namespace mbed {
phungductung 0:e87aa4c49e95 528
phungductung 0:e87aa4c49e95 529 void mbed_set_unbuffered_stream(FILE *_file) {
phungductung 0:e87aa4c49e95 530 #if defined (__ICCARM__)
phungductung 0:e87aa4c49e95 531 char buf[2];
phungductung 0:e87aa4c49e95 532 std::setvbuf(_file,buf,_IONBF,NULL);
phungductung 0:e87aa4c49e95 533 #else
phungductung 0:e87aa4c49e95 534 setbuf(_file, NULL);
phungductung 0:e87aa4c49e95 535 #endif
phungductung 0:e87aa4c49e95 536 }
phungductung 0:e87aa4c49e95 537
phungductung 0:e87aa4c49e95 538 int mbed_getc(FILE *_file){
phungductung 0:e87aa4c49e95 539 #if defined (__ICCARM__)
phungductung 0:e87aa4c49e95 540 /*This is only valid for unbuffered streams*/
phungductung 0:e87aa4c49e95 541 int res = std::fgetc(_file);
phungductung 0:e87aa4c49e95 542 if (res>=0){
phungductung 0:e87aa4c49e95 543 _file->_Mode = (unsigned short)(_file->_Mode & ~ 0x1000);/* Unset read mode */
phungductung 0:e87aa4c49e95 544 _file->_Rend = _file->_Wend;
phungductung 0:e87aa4c49e95 545 _file->_Next = _file->_Wend;
phungductung 0:e87aa4c49e95 546 }
phungductung 0:e87aa4c49e95 547 return res;
phungductung 0:e87aa4c49e95 548 #else
phungductung 0:e87aa4c49e95 549 return std::fgetc(_file);
phungductung 0:e87aa4c49e95 550 #endif
phungductung 0:e87aa4c49e95 551 }
phungductung 0:e87aa4c49e95 552
phungductung 0:e87aa4c49e95 553 char* mbed_gets(char*s, int size, FILE *_file){
phungductung 0:e87aa4c49e95 554 #if defined (__ICCARM__)
phungductung 0:e87aa4c49e95 555 /*This is only valid for unbuffered streams*/
phungductung 0:e87aa4c49e95 556 char *str = fgets(s,size,_file);
phungductung 0:e87aa4c49e95 557 if (str!=NULL){
phungductung 0:e87aa4c49e95 558 _file->_Mode = (unsigned short)(_file->_Mode & ~ 0x1000);/* Unset read mode */
phungductung 0:e87aa4c49e95 559 _file->_Rend = _file->_Wend;
phungductung 0:e87aa4c49e95 560 _file->_Next = _file->_Wend;
phungductung 0:e87aa4c49e95 561 }
phungductung 0:e87aa4c49e95 562 return str;
phungductung 0:e87aa4c49e95 563 #else
phungductung 0:e87aa4c49e95 564 return std::fgets(s,size,_file);
phungductung 0:e87aa4c49e95 565 #endif
phungductung 0:e87aa4c49e95 566 }
phungductung 0:e87aa4c49e95 567
phungductung 0:e87aa4c49e95 568 } // namespace mbed