Aravind Vadali / mbed-src-AV

mbed.h library with any bug fixes AV finds.

Dependents:   micromouse4_encoder_testing PID_Test Lab1_Test WorkingPID ... more

common/retarget.cpp@1:ebce2ad32f95, 2015-11-02 (annotated)

Committer:
aravindsv
Date:
Mon Nov 02 03:07:12 2015 +0000
Revision:
1:ebce2ad32f95
Parent:
0:ba7650f404af 
Changed the RCC timeout value to 500 ms, so total code startup time before program starts running is ~1s. Hopefully no side-effects from lower startup timeouts

Who changed what in which revision?

UserRevisionLine numberNew contents of line
aravindsv 0:ba7650f404af 1 /* mbed Microcontroller Library
aravindsv 0:ba7650f404af 2 * Copyright (c) 2006-2015 ARM Limited
aravindsv 0:ba7650f404af 3 *
aravindsv 0:ba7650f404af 4 * Licensed under the Apache License, Version 2.0 (the "License");
aravindsv 0:ba7650f404af 5 * you may not use this file except in compliance with the License.
aravindsv 0:ba7650f404af 6 * You may obtain a copy of the License at
aravindsv 0:ba7650f404af 7 *
aravindsv 0:ba7650f404af 8 * http://www.apache.org/licenses/LICENSE-2.0
aravindsv 0:ba7650f404af 9 *
aravindsv 0:ba7650f404af 10 * Unless required by applicable law or agreed to in writing, software
aravindsv 0:ba7650f404af 11 * distributed under the License is distributed on an "AS IS" BASIS,
aravindsv 0:ba7650f404af 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
aravindsv 0:ba7650f404af 13 * See the License for the specific language governing permissions and
aravindsv 0:ba7650f404af 14 * limitations under the License.
aravindsv 0:ba7650f404af 15 */
aravindsv 0:ba7650f404af 16 #include "platform.h"
aravindsv 0:ba7650f404af 17 #include "FileHandle.h"
aravindsv 0:ba7650f404af 18 #include "FileSystemLike.h"
aravindsv 0:ba7650f404af 19 #include "FilePath.h"
aravindsv 0:ba7650f404af 20 #include "serial_api.h"
aravindsv 0:ba7650f404af 21 #include "toolchain.h"
aravindsv 0:ba7650f404af 22 #include "semihost_api.h"
aravindsv 0:ba7650f404af 23 #include "mbed_interface.h"
aravindsv 0:ba7650f404af 24 #if DEVICE_STDIO_MESSAGES
aravindsv 0:ba7650f404af 25 #include <stdio.h>
aravindsv 0:ba7650f404af 26 #endif
aravindsv 0:ba7650f404af 27 #include <errno.h>
aravindsv 0:ba7650f404af 28
aravindsv 0:ba7650f404af 29 #if defined(__ARMCC_VERSION)
aravindsv 0:ba7650f404af 30 # include <rt_sys.h>
aravindsv 0:ba7650f404af 31 # define PREFIX(x) _sys##x
aravindsv 0:ba7650f404af 32 # define OPEN_MAX _SYS_OPEN
aravindsv 0:ba7650f404af 33 # ifdef __MICROLIB
aravindsv 0:ba7650f404af 34 # pragma import(__use_full_stdio)
aravindsv 0:ba7650f404af 35 # endif
aravindsv 0:ba7650f404af 36
aravindsv 0:ba7650f404af 37 #elif defined(__ICCARM__)
aravindsv 0:ba7650f404af 38 # include <yfuns.h>
aravindsv 0:ba7650f404af 39 # define PREFIX(x) _##x
aravindsv 0:ba7650f404af 40 # define OPEN_MAX 16
aravindsv 0:ba7650f404af 41
aravindsv 0:ba7650f404af 42 # define STDIN_FILENO 0
aravindsv 0:ba7650f404af 43 # define STDOUT_FILENO 1
aravindsv 0:ba7650f404af 44 # define STDERR_FILENO 2
aravindsv 0:ba7650f404af 45
aravindsv 0:ba7650f404af 46 #else
aravindsv 0:ba7650f404af 47 # include <sys/stat.h>
aravindsv 0:ba7650f404af 48 # include <sys/unistd.h>
aravindsv 0:ba7650f404af 49 # include <sys/syslimits.h>
aravindsv 0:ba7650f404af 50 # define PREFIX(x) x
aravindsv 0:ba7650f404af 51 #endif
aravindsv 0:ba7650f404af 52
aravindsv 0:ba7650f404af 53 using namespace mbed;
aravindsv 0:ba7650f404af 54
aravindsv 0:ba7650f404af 55 #if defined(__MICROLIB) && (__ARMCC_VERSION>5030000)
aravindsv 0:ba7650f404af 56 // Before version 5.03, we were using a patched version of microlib with proper names
aravindsv 0:ba7650f404af 57 extern const char __stdin_name[] = ":tt";
aravindsv 0:ba7650f404af 58 extern const char __stdout_name[] = ":tt";
aravindsv 0:ba7650f404af 59 extern const char __stderr_name[] = ":tt";
aravindsv 0:ba7650f404af 60
aravindsv 0:ba7650f404af 61 #else
aravindsv 0:ba7650f404af 62 extern const char __stdin_name[] = "/stdin";
aravindsv 0:ba7650f404af 63 extern const char __stdout_name[] = "/stdout";
aravindsv 0:ba7650f404af 64 extern const char __stderr_name[] = "/stderr";
aravindsv 0:ba7650f404af 65 #endif
aravindsv 0:ba7650f404af 66
aravindsv 0:ba7650f404af 67 /* newlib has the filehandle field in the FILE struct as a short, so
aravindsv 0:ba7650f404af 68 * we can't just return a Filehandle* from _open and instead have to
aravindsv 0:ba7650f404af 69 * put it in a filehandles array and return the index into that array
aravindsv 0:ba7650f404af 70 * (or rather index+3, as filehandles 0-2 are stdin/out/err).
aravindsv 0:ba7650f404af 71 */
aravindsv 0:ba7650f404af 72 static FileHandle *filehandles[OPEN_MAX];
aravindsv 0:ba7650f404af 73
aravindsv 0:ba7650f404af 74 FileHandle::~FileHandle() {
aravindsv 0:ba7650f404af 75 /* Remove all open filehandles for this */
aravindsv 0:ba7650f404af 76 for (unsigned int fh_i = 0; fh_i < sizeof(filehandles)/sizeof(*filehandles); fh_i++) {
aravindsv 0:ba7650f404af 77 if (filehandles[fh_i] == this) {
aravindsv 0:ba7650f404af 78 filehandles[fh_i] = NULL;
aravindsv 0:ba7650f404af 79 }
aravindsv 0:ba7650f404af 80 }
aravindsv 0:ba7650f404af 81 }
aravindsv 0:ba7650f404af 82
aravindsv 0:ba7650f404af 83 #if DEVICE_SERIAL
aravindsv 0:ba7650f404af 84 extern int stdio_uart_inited;
aravindsv 0:ba7650f404af 85 extern serial_t stdio_uart;
aravindsv 0:ba7650f404af 86 #endif
aravindsv 0:ba7650f404af 87
aravindsv 0:ba7650f404af 88 static void init_serial() {
aravindsv 0:ba7650f404af 89 #if DEVICE_SERIAL
aravindsv 0:ba7650f404af 90 if (stdio_uart_inited) return;
aravindsv 0:ba7650f404af 91 serial_init(&stdio_uart, STDIO_UART_TX, STDIO_UART_RX);
aravindsv 0:ba7650f404af 92 #endif
aravindsv 0:ba7650f404af 93 }
aravindsv 0:ba7650f404af 94
aravindsv 0:ba7650f404af 95 static inline int openmode_to_posix(int openmode) {
aravindsv 0:ba7650f404af 96 int posix = openmode;
aravindsv 0:ba7650f404af 97 #ifdef __ARMCC_VERSION
aravindsv 0:ba7650f404af 98 if (openmode & OPEN_PLUS) {
aravindsv 0:ba7650f404af 99 posix = O_RDWR;
aravindsv 0:ba7650f404af 100 } else if(openmode & OPEN_W) {
aravindsv 0:ba7650f404af 101 posix = O_WRONLY;
aravindsv 0:ba7650f404af 102 } else if(openmode & OPEN_A) {
aravindsv 0:ba7650f404af 103 posix = O_WRONLY|O_APPEND;
aravindsv 0:ba7650f404af 104 } else {
aravindsv 0:ba7650f404af 105 posix = O_RDONLY;
aravindsv 0:ba7650f404af 106 }
aravindsv 0:ba7650f404af 107 /* a, w, a+, w+ all create if file does not already exist */
aravindsv 0:ba7650f404af 108 if (openmode & (OPEN_A|OPEN_W)) {
aravindsv 0:ba7650f404af 109 posix |= O_CREAT;
aravindsv 0:ba7650f404af 110 }
aravindsv 0:ba7650f404af 111 /* w and w+ truncate */
aravindsv 0:ba7650f404af 112 if (openmode & OPEN_W) {
aravindsv 0:ba7650f404af 113 posix |= O_TRUNC;
aravindsv 0:ba7650f404af 114 }
aravindsv 0:ba7650f404af 115 #elif defined(__ICCARM__)
aravindsv 0:ba7650f404af 116 switch (openmode & _LLIO_RDWRMASK) {
aravindsv 0:ba7650f404af 117 case _LLIO_RDONLY: posix = O_RDONLY; break;
aravindsv 0:ba7650f404af 118 case _LLIO_WRONLY: posix = O_WRONLY; break;
aravindsv 0:ba7650f404af 119 case _LLIO_RDWR : posix = O_RDWR ; break;
aravindsv 0:ba7650f404af 120 }
aravindsv 0:ba7650f404af 121 if (openmode & _LLIO_CREAT ) posix |= O_CREAT;
aravindsv 0:ba7650f404af 122 if (openmode & _LLIO_APPEND) posix |= O_APPEND;
aravindsv 0:ba7650f404af 123 if (openmode & _LLIO_TRUNC ) posix |= O_TRUNC;
aravindsv 0:ba7650f404af 124 #endif
aravindsv 0:ba7650f404af 125 return posix;
aravindsv 0:ba7650f404af 126 }
aravindsv 0:ba7650f404af 127
aravindsv 0:ba7650f404af 128 extern "C" FILEHANDLE PREFIX(_open)(const char* name, int openmode) {
aravindsv 0:ba7650f404af 129 #if defined(__MICROLIB) && (__ARMCC_VERSION>5030000)
aravindsv 0:ba7650f404af 130 // Before version 5.03, we were using a patched version of microlib with proper names
aravindsv 0:ba7650f404af 131 // This is the workaround that the microlib author suggested us
aravindsv 0:ba7650f404af 132 static int n = 0;
aravindsv 0:ba7650f404af 133 if (!std::strcmp(name, ":tt")) return n++;
aravindsv 0:ba7650f404af 134
aravindsv 0:ba7650f404af 135 #else
aravindsv 0:ba7650f404af 136 /* Use the posix convention that stdin,out,err are filehandles 0,1,2.
aravindsv 0:ba7650f404af 137 */
aravindsv 0:ba7650f404af 138 if (std::strcmp(name, __stdin_name) == 0) {
aravindsv 0:ba7650f404af 139 init_serial();
aravindsv 0:ba7650f404af 140 return 0;
aravindsv 0:ba7650f404af 141 } else if (std::strcmp(name, __stdout_name) == 0) {
aravindsv 0:ba7650f404af 142 init_serial();
aravindsv 0:ba7650f404af 143 return 1;
aravindsv 0:ba7650f404af 144 } else if (std::strcmp(name, __stderr_name) == 0) {
aravindsv 0:ba7650f404af 145 init_serial();
aravindsv 0:ba7650f404af 146 return 2;
aravindsv 0:ba7650f404af 147 }
aravindsv 0:ba7650f404af 148 #endif
aravindsv 0:ba7650f404af 149
aravindsv 0:ba7650f404af 150 // find the first empty slot in filehandles
aravindsv 0:ba7650f404af 151 unsigned int fh_i;
aravindsv 0:ba7650f404af 152 for (fh_i = 0; fh_i < sizeof(filehandles)/sizeof(*filehandles); fh_i++) {
aravindsv 0:ba7650f404af 153 if (filehandles[fh_i] == NULL) break;
aravindsv 0:ba7650f404af 154 }
aravindsv 0:ba7650f404af 155 if (fh_i >= sizeof(filehandles)/sizeof(*filehandles)) {
aravindsv 0:ba7650f404af 156 return -1;
aravindsv 0:ba7650f404af 157 }
aravindsv 0:ba7650f404af 158
aravindsv 0:ba7650f404af 159 FileHandle *res;
aravindsv 0:ba7650f404af 160
aravindsv 0:ba7650f404af 161 /* FILENAME: ":0x12345678" describes a FileLike* */
aravindsv 0:ba7650f404af 162 if (name[0] == ':') {
aravindsv 0:ba7650f404af 163 void *p;
aravindsv 0:ba7650f404af 164 sscanf(name, ":%p", &p);
aravindsv 0:ba7650f404af 165 res = (FileHandle*)p;
aravindsv 0:ba7650f404af 166
aravindsv 0:ba7650f404af 167 /* FILENAME: "/file_system/file_name" */
aravindsv 0:ba7650f404af 168 } else {
aravindsv 0:ba7650f404af 169 FilePath path(name);
aravindsv 0:ba7650f404af 170
aravindsv 0:ba7650f404af 171 if (!path.exists())
aravindsv 0:ba7650f404af 172 return -1;
aravindsv 0:ba7650f404af 173 else if (path.isFile()) {
aravindsv 0:ba7650f404af 174 res = path.file();
aravindsv 0:ba7650f404af 175 } else {
aravindsv 0:ba7650f404af 176 FileSystemLike *fs = path.fileSystem();
aravindsv 0:ba7650f404af 177 if (fs == NULL) return -1;
aravindsv 0:ba7650f404af 178 int posix_mode = openmode_to_posix(openmode);
aravindsv 0:ba7650f404af 179 res = fs->open(path.fileName(), posix_mode); /* NULL if fails */
aravindsv 0:ba7650f404af 180 }
aravindsv 0:ba7650f404af 181 }
aravindsv 0:ba7650f404af 182
aravindsv 0:ba7650f404af 183 if (res == NULL) return -1;
aravindsv 0:ba7650f404af 184 filehandles[fh_i] = res;
aravindsv 0:ba7650f404af 185
aravindsv 0:ba7650f404af 186 return fh_i + 3; // +3 as filehandles 0-2 are stdin/out/err
aravindsv 0:ba7650f404af 187 }
aravindsv 0:ba7650f404af 188
aravindsv 0:ba7650f404af 189 extern "C" int PREFIX(_close)(FILEHANDLE fh) {
aravindsv 0:ba7650f404af 190 if (fh < 3) return 0;
aravindsv 0:ba7650f404af 191
aravindsv 0:ba7650f404af 192 FileHandle* fhc = filehandles[fh-3];
aravindsv 0:ba7650f404af 193 filehandles[fh-3] = NULL;
aravindsv 0:ba7650f404af 194 if (fhc == NULL) return -1;
aravindsv 0:ba7650f404af 195
aravindsv 0:ba7650f404af 196 return fhc->close();
aravindsv 0:ba7650f404af 197 }
aravindsv 0:ba7650f404af 198
aravindsv 0:ba7650f404af 199 #if defined(__ICCARM__)
aravindsv 0:ba7650f404af 200 extern "C" size_t __write (int fh, const unsigned char *buffer, size_t length) {
aravindsv 0:ba7650f404af 201 #else
aravindsv 0:ba7650f404af 202 extern "C" int PREFIX(_write)(FILEHANDLE fh, const unsigned char *buffer, unsigned int length, int mode) {
aravindsv 0:ba7650f404af 203 #endif
aravindsv 0:ba7650f404af 204 int n; // n is the number of bytes written
aravindsv 0:ba7650f404af 205 if (fh < 3) {
aravindsv 0:ba7650f404af 206 #if DEVICE_SERIAL
aravindsv 0:ba7650f404af 207 if (!stdio_uart_inited) init_serial();
aravindsv 0:ba7650f404af 208 for (unsigned int i = 0; i < length; i++) {
aravindsv 0:ba7650f404af 209 serial_putc(&stdio_uart, buffer[i]);
aravindsv 0:ba7650f404af 210 }
aravindsv 0:ba7650f404af 211 #endif
aravindsv 0:ba7650f404af 212 n = length;
aravindsv 0:ba7650f404af 213 } else {
aravindsv 0:ba7650f404af 214 FileHandle* fhc = filehandles[fh-3];
aravindsv 0:ba7650f404af 215 if (fhc == NULL) return -1;
aravindsv 0:ba7650f404af 216
aravindsv 0:ba7650f404af 217 n = fhc->write(buffer, length);
aravindsv 0:ba7650f404af 218 }
aravindsv 0:ba7650f404af 219 #ifdef __ARMCC_VERSION
aravindsv 0:ba7650f404af 220 return length-n;
aravindsv 0:ba7650f404af 221 #else
aravindsv 0:ba7650f404af 222 return n;
aravindsv 0:ba7650f404af 223 #endif
aravindsv 0:ba7650f404af 224 }
aravindsv 0:ba7650f404af 225
aravindsv 0:ba7650f404af 226 #if defined(__ICCARM__)
aravindsv 0:ba7650f404af 227 extern "C" size_t __read (int fh, unsigned char *buffer, size_t length) {
aravindsv 0:ba7650f404af 228 #else
aravindsv 0:ba7650f404af 229 extern "C" int PREFIX(_read)(FILEHANDLE fh, unsigned char *buffer, unsigned int length, int mode) {
aravindsv 0:ba7650f404af 230 #endif
aravindsv 0:ba7650f404af 231 int n; // n is the number of bytes read
aravindsv 0:ba7650f404af 232 if (fh < 3) {
aravindsv 0:ba7650f404af 233 // only read a character at a time from stdin
aravindsv 0:ba7650f404af 234 #if DEVICE_SERIAL
aravindsv 0:ba7650f404af 235 if (!stdio_uart_inited) init_serial();
aravindsv 0:ba7650f404af 236 *buffer = serial_getc(&stdio_uart);
aravindsv 0:ba7650f404af 237 #endif
aravindsv 0:ba7650f404af 238 n = 1;
aravindsv 0:ba7650f404af 239 } else {
aravindsv 0:ba7650f404af 240 FileHandle* fhc = filehandles[fh-3];
aravindsv 0:ba7650f404af 241 if (fhc == NULL) return -1;
aravindsv 0:ba7650f404af 242
aravindsv 0:ba7650f404af 243 n = fhc->read(buffer, length);
aravindsv 0:ba7650f404af 244 }
aravindsv 0:ba7650f404af 245 #ifdef __ARMCC_VERSION
aravindsv 0:ba7650f404af 246 return length-n;
aravindsv 0:ba7650f404af 247 #else
aravindsv 0:ba7650f404af 248 return n;
aravindsv 0:ba7650f404af 249 #endif
aravindsv 0:ba7650f404af 250 }
aravindsv 0:ba7650f404af 251
aravindsv 0:ba7650f404af 252 #ifdef __ARMCC_VERSION
aravindsv 0:ba7650f404af 253 extern "C" int PREFIX(_istty)(FILEHANDLE fh)
aravindsv 0:ba7650f404af 254 #else
aravindsv 0:ba7650f404af 255 extern "C" int _isatty(FILEHANDLE fh)
aravindsv 0:ba7650f404af 256 #endif
aravindsv 0:ba7650f404af 257 {
aravindsv 0:ba7650f404af 258 /* stdin, stdout and stderr should be tty */
aravindsv 0:ba7650f404af 259 if (fh < 3) return 1;
aravindsv 0:ba7650f404af 260
aravindsv 0:ba7650f404af 261 FileHandle* fhc = filehandles[fh-3];
aravindsv 0:ba7650f404af 262 if (fhc == NULL) return -1;
aravindsv 0:ba7650f404af 263
aravindsv 0:ba7650f404af 264 return fhc->isatty();
aravindsv 0:ba7650f404af 265 }
aravindsv 0:ba7650f404af 266
aravindsv 0:ba7650f404af 267 extern "C"
aravindsv 0:ba7650f404af 268 #if defined(__ARMCC_VERSION)
aravindsv 0:ba7650f404af 269 int _sys_seek(FILEHANDLE fh, long position)
aravindsv 0:ba7650f404af 270 #elif defined(__ICCARM__)
aravindsv 0:ba7650f404af 271 long __lseek(int fh, long offset, int whence)
aravindsv 0:ba7650f404af 272 #else
aravindsv 0:ba7650f404af 273 int _lseek(FILEHANDLE fh, int offset, int whence)
aravindsv 0:ba7650f404af 274 #endif
aravindsv 0:ba7650f404af 275 {
aravindsv 0:ba7650f404af 276 if (fh < 3) return 0;
aravindsv 0:ba7650f404af 277
aravindsv 0:ba7650f404af 278 FileHandle* fhc = filehandles[fh-3];
aravindsv 0:ba7650f404af 279 if (fhc == NULL) return -1;
aravindsv 0:ba7650f404af 280
aravindsv 0:ba7650f404af 281 #if defined(__ARMCC_VERSION)
aravindsv 0:ba7650f404af 282 return fhc->lseek(position, SEEK_SET);
aravindsv 0:ba7650f404af 283 #else
aravindsv 0:ba7650f404af 284 return fhc->lseek(offset, whence);
aravindsv 0:ba7650f404af 285 #endif
aravindsv 0:ba7650f404af 286 }
aravindsv 0:ba7650f404af 287
aravindsv 0:ba7650f404af 288 #ifdef __ARMCC_VERSION
aravindsv 0:ba7650f404af 289 extern "C" int PREFIX(_ensure)(FILEHANDLE fh) {
aravindsv 0:ba7650f404af 290 if (fh < 3) return 0;
aravindsv 0:ba7650f404af 291
aravindsv 0:ba7650f404af 292 FileHandle* fhc = filehandles[fh-3];
aravindsv 0:ba7650f404af 293 if (fhc == NULL) return -1;
aravindsv 0:ba7650f404af 294
aravindsv 0:ba7650f404af 295 return fhc->fsync();
aravindsv 0:ba7650f404af 296 }
aravindsv 0:ba7650f404af 297
aravindsv 0:ba7650f404af 298 extern "C" long PREFIX(_flen)(FILEHANDLE fh) {
aravindsv 0:ba7650f404af 299 if (fh < 3) return 0;
aravindsv 0:ba7650f404af 300
aravindsv 0:ba7650f404af 301 FileHandle* fhc = filehandles[fh-3];
aravindsv 0:ba7650f404af 302 if (fhc == NULL) return -1;
aravindsv 0:ba7650f404af 303
aravindsv 0:ba7650f404af 304 return fhc->flen();
aravindsv 0:ba7650f404af 305 }
aravindsv 0:ba7650f404af 306 #endif
aravindsv 0:ba7650f404af 307
aravindsv 0:ba7650f404af 308
aravindsv 0:ba7650f404af 309 #if !defined(__ARMCC_VERSION) && !defined(__ICCARM__)
aravindsv 0:ba7650f404af 310 extern "C" int _fstat(int fd, struct stat *st) {
aravindsv 0:ba7650f404af 311 if ((STDOUT_FILENO == fd) || (STDERR_FILENO == fd) || (STDIN_FILENO == fd)) {
aravindsv 0:ba7650f404af 312 st->st_mode = S_IFCHR;
aravindsv 0:ba7650f404af 313 return 0;
aravindsv 0:ba7650f404af 314 }
aravindsv 0:ba7650f404af 315
aravindsv 0:ba7650f404af 316 errno = EBADF;
aravindsv 0:ba7650f404af 317 return -1;
aravindsv 0:ba7650f404af 318 }
aravindsv 0:ba7650f404af 319 #endif
aravindsv 0:ba7650f404af 320
aravindsv 0:ba7650f404af 321 namespace std {
aravindsv 0:ba7650f404af 322 extern "C" int remove(const char *path) {
aravindsv 0:ba7650f404af 323 FilePath fp(path);
aravindsv 0:ba7650f404af 324 FileSystemLike *fs = fp.fileSystem();
aravindsv 0:ba7650f404af 325 if (fs == NULL) return -1;
aravindsv 0:ba7650f404af 326
aravindsv 0:ba7650f404af 327 return fs->remove(fp.fileName());
aravindsv 0:ba7650f404af 328 }
aravindsv 0:ba7650f404af 329
aravindsv 0:ba7650f404af 330 extern "C" int rename(const char *oldname, const char *newname) {
aravindsv 0:ba7650f404af 331 FilePath fpOld(oldname);
aravindsv 0:ba7650f404af 332 FilePath fpNew(newname);
aravindsv 0:ba7650f404af 333 FileSystemLike *fsOld = fpOld.fileSystem();
aravindsv 0:ba7650f404af 334 FileSystemLike *fsNew = fpNew.fileSystem();
aravindsv 0:ba7650f404af 335
aravindsv 0:ba7650f404af 336 /* rename only if both files are on the same FS */
aravindsv 0:ba7650f404af 337 if (fsOld != fsNew || fsOld == NULL) return -1;
aravindsv 0:ba7650f404af 338
aravindsv 0:ba7650f404af 339 return fsOld->rename(fpOld.fileName(), fpNew.fileName());
aravindsv 0:ba7650f404af 340 }
aravindsv 0:ba7650f404af 341
aravindsv 0:ba7650f404af 342 extern "C" char *tmpnam(char *s) {
aravindsv 0:ba7650f404af 343 return NULL;
aravindsv 0:ba7650f404af 344 }
aravindsv 0:ba7650f404af 345
aravindsv 0:ba7650f404af 346 extern "C" FILE *tmpfile() {
aravindsv 0:ba7650f404af 347 return NULL;
aravindsv 0:ba7650f404af 348 }
aravindsv 0:ba7650f404af 349 } // namespace std
aravindsv 0:ba7650f404af 350
aravindsv 0:ba7650f404af 351 #ifdef __ARMCC_VERSION
aravindsv 0:ba7650f404af 352 extern "C" char *_sys_command_string(char *cmd, int len) {
aravindsv 0:ba7650f404af 353 return NULL;
aravindsv 0:ba7650f404af 354 }
aravindsv 0:ba7650f404af 355 #endif
aravindsv 0:ba7650f404af 356
aravindsv 0:ba7650f404af 357 extern "C" DIR *opendir(const char *path) {
aravindsv 0:ba7650f404af 358 /* root dir is FileSystemLike */
aravindsv 0:ba7650f404af 359 if (path[0] == '/' && path[1] == 0) {
aravindsv 0:ba7650f404af 360 return FileSystemLike::opendir();
aravindsv 0:ba7650f404af 361 }
aravindsv 0:ba7650f404af 362
aravindsv 0:ba7650f404af 363 FilePath fp(path);
aravindsv 0:ba7650f404af 364 FileSystemLike* fs = fp.fileSystem();
aravindsv 0:ba7650f404af 365 if (fs == NULL) return NULL;
aravindsv 0:ba7650f404af 366
aravindsv 0:ba7650f404af 367 return fs->opendir(fp.fileName());
aravindsv 0:ba7650f404af 368 }
aravindsv 0:ba7650f404af 369
aravindsv 0:ba7650f404af 370 extern "C" struct dirent *readdir(DIR *dir) {
aravindsv 0:ba7650f404af 371 return dir->readdir();
aravindsv 0:ba7650f404af 372 }
aravindsv 0:ba7650f404af 373
aravindsv 0:ba7650f404af 374 extern "C" int closedir(DIR *dir) {
aravindsv 0:ba7650f404af 375 return dir->closedir();
aravindsv 0:ba7650f404af 376 }
aravindsv 0:ba7650f404af 377
aravindsv 0:ba7650f404af 378 extern "C" void rewinddir(DIR *dir) {
aravindsv 0:ba7650f404af 379 dir->rewinddir();
aravindsv 0:ba7650f404af 380 }
aravindsv 0:ba7650f404af 381
aravindsv 0:ba7650f404af 382 extern "C" off_t telldir(DIR *dir) {
aravindsv 0:ba7650f404af 383 return dir->telldir();
aravindsv 0:ba7650f404af 384 }
aravindsv 0:ba7650f404af 385
aravindsv 0:ba7650f404af 386 extern "C" void seekdir(DIR *dir, off_t off) {
aravindsv 0:ba7650f404af 387 dir->seekdir(off);
aravindsv 0:ba7650f404af 388 }
aravindsv 0:ba7650f404af 389
aravindsv 0:ba7650f404af 390 extern "C" int mkdir(const char *path, mode_t mode) {
aravindsv 0:ba7650f404af 391 FilePath fp(path);
aravindsv 0:ba7650f404af 392 FileSystemLike *fs = fp.fileSystem();
aravindsv 0:ba7650f404af 393 if (fs == NULL) return -1;
aravindsv 0:ba7650f404af 394
aravindsv 0:ba7650f404af 395 return fs->mkdir(fp.fileName(), mode);
aravindsv 0:ba7650f404af 396 }
aravindsv 0:ba7650f404af 397
aravindsv 0:ba7650f404af 398 #if defined(TOOLCHAIN_GCC)
aravindsv 0:ba7650f404af 399 /* prevents the exception handling name demangling code getting pulled in */
aravindsv 0:ba7650f404af 400 #include "mbed_error.h"
aravindsv 0:ba7650f404af 401 namespace __gnu_cxx {
aravindsv 0:ba7650f404af 402 void __verbose_terminate_handler() {
aravindsv 0:ba7650f404af 403 error("Exception");
aravindsv 0:ba7650f404af 404 }
aravindsv 0:ba7650f404af 405 }
aravindsv 0:ba7650f404af 406 extern "C" WEAK void __cxa_pure_virtual(void);
aravindsv 0:ba7650f404af 407 extern "C" WEAK void __cxa_pure_virtual(void) {
aravindsv 0:ba7650f404af 408 exit(1);
aravindsv 0:ba7650f404af 409 }
aravindsv 0:ba7650f404af 410
aravindsv 0:ba7650f404af 411 #endif
aravindsv 0:ba7650f404af 412
aravindsv 0:ba7650f404af 413 // ****************************************************************************
aravindsv 0:ba7650f404af 414 // mbed_main is a function that is called before main()
aravindsv 0:ba7650f404af 415 // mbed_sdk_init() is also a function that is called before main(), but unlike
aravindsv 0:ba7650f404af 416 // mbed_main(), it is not meant for user code, but for the SDK itself to perform
aravindsv 0:ba7650f404af 417 // initializations before main() is called.
aravindsv 0:ba7650f404af 418
aravindsv 0:ba7650f404af 419 extern "C" WEAK void mbed_main(void);
aravindsv 0:ba7650f404af 420 extern "C" WEAK void mbed_main(void) {
aravindsv 0:ba7650f404af 421 }
aravindsv 0:ba7650f404af 422
aravindsv 0:ba7650f404af 423 extern "C" WEAK void mbed_sdk_init(void);
aravindsv 0:ba7650f404af 424 extern "C" WEAK void mbed_sdk_init(void) {
aravindsv 0:ba7650f404af 425 }
aravindsv 0:ba7650f404af 426
aravindsv 0:ba7650f404af 427 #if defined(TOOLCHAIN_ARM)
aravindsv 0:ba7650f404af 428 extern "C" int $Super$$main(void);
aravindsv 0:ba7650f404af 429
aravindsv 0:ba7650f404af 430 extern "C" int $Sub$$main(void) {
aravindsv 0:ba7650f404af 431 mbed_sdk_init();
aravindsv 0:ba7650f404af 432 mbed_main();
aravindsv 0:ba7650f404af 433 return $Super$$main();
aravindsv 0:ba7650f404af 434 }
aravindsv 0:ba7650f404af 435 #elif defined(TOOLCHAIN_GCC)
aravindsv 0:ba7650f404af 436 extern "C" int __real_main(void);
aravindsv 0:ba7650f404af 437
aravindsv 0:ba7650f404af 438 extern "C" int __wrap_main(void) {
aravindsv 0:ba7650f404af 439 mbed_sdk_init();
aravindsv 0:ba7650f404af 440 mbed_main();
aravindsv 0:ba7650f404af 441 return __real_main();
aravindsv 0:ba7650f404af 442 }
aravindsv 0:ba7650f404af 443 #elif defined(TOOLCHAIN_IAR)
aravindsv 0:ba7650f404af 444 // IAR doesn't have the $Super/$Sub mechanism of armcc, nor something equivalent
aravindsv 0:ba7650f404af 445 // to ld's --wrap. It does have a --redirect, but that doesn't help, since redirecting
aravindsv 0:ba7650f404af 446 // 'main' to another symbol looses the original 'main' symbol. However, its startup
aravindsv 0:ba7650f404af 447 // code will call a function to setup argc and argv (__iar_argc_argv) if it is defined.
aravindsv 0:ba7650f404af 448 // Since mbed doesn't use argc/argv, we use this function to call our mbed_main.
aravindsv 0:ba7650f404af 449 extern "C" void __iar_argc_argv() {
aravindsv 0:ba7650f404af 450 mbed_sdk_init();
aravindsv 0:ba7650f404af 451 mbed_main();
aravindsv 0:ba7650f404af 452 }
aravindsv 0:ba7650f404af 453 #endif
aravindsv 0:ba7650f404af 454
aravindsv 0:ba7650f404af 455 // Provide implementation of _sbrk (low-level dynamic memory allocation
aravindsv 0:ba7650f404af 456 // routine) for GCC_ARM which compares new heap pointer with MSP instead of
aravindsv 0:ba7650f404af 457 // SP. This make it compatible with RTX RTOS thread stacks.
aravindsv 0:ba7650f404af 458 #if defined(TOOLCHAIN_GCC_ARM)
aravindsv 0:ba7650f404af 459 // Linker defined symbol used by _sbrk to indicate where heap should start.
aravindsv 0:ba7650f404af 460 extern "C" int __end__;
aravindsv 0:ba7650f404af 461
aravindsv 0:ba7650f404af 462 #if defined(TARGET_CORTEX_A)
aravindsv 0:ba7650f404af 463 extern "C" uint32_t __HeapLimit;
aravindsv 0:ba7650f404af 464 #endif
aravindsv 0:ba7650f404af 465
aravindsv 0:ba7650f404af 466 // Turn off the errno macro and use actual global variable instead.
aravindsv 0:ba7650f404af 467 #undef errno
aravindsv 0:ba7650f404af 468 extern "C" int errno;
aravindsv 0:ba7650f404af 469
aravindsv 0:ba7650f404af 470 // For ARM7 only
aravindsv 0:ba7650f404af 471 register unsigned char * stack_ptr __asm ("sp");
aravindsv 0:ba7650f404af 472
aravindsv 0:ba7650f404af 473 // Dynamic memory allocation related syscall.
aravindsv 0:ba7650f404af 474 extern "C" caddr_t _sbrk(int incr) {
aravindsv 0:ba7650f404af 475 static unsigned char* heap = (unsigned char*)&__end__;
aravindsv 0:ba7650f404af 476 unsigned char* prev_heap = heap;
aravindsv 0:ba7650f404af 477 unsigned char* new_heap = heap + incr;
aravindsv 0:ba7650f404af 478
aravindsv 0:ba7650f404af 479 #if defined(TARGET_ARM7)
aravindsv 0:ba7650f404af 480 if (new_heap >= stack_ptr) {
aravindsv 0:ba7650f404af 481 #elif defined(TARGET_CORTEX_A)
aravindsv 0:ba7650f404af 482 if (new_heap >= (unsigned char*)&__HeapLimit) { /* __HeapLimit is end of heap section */
aravindsv 0:ba7650f404af 483 #else
aravindsv 0:ba7650f404af 484 if (new_heap >= (unsigned char*)__get_MSP()) {
aravindsv 0:ba7650f404af 485 #endif
aravindsv 0:ba7650f404af 486 errno = ENOMEM;
aravindsv 0:ba7650f404af 487 return (caddr_t)-1;
aravindsv 0:ba7650f404af 488 }
aravindsv 0:ba7650f404af 489
aravindsv 0:ba7650f404af 490 heap = new_heap;
aravindsv 0:ba7650f404af 491 return (caddr_t) prev_heap;
aravindsv 0:ba7650f404af 492 }
aravindsv 0:ba7650f404af 493 #endif
aravindsv 0:ba7650f404af 494
aravindsv 0:ba7650f404af 495
aravindsv 0:ba7650f404af 496 #ifdef TOOLCHAIN_GCC_CW
aravindsv 0:ba7650f404af 497 // TODO: Ideally, we would like to define directly "_ExitProcess"
aravindsv 0:ba7650f404af 498 extern "C" void mbed_exit(int return_code) {
aravindsv 0:ba7650f404af 499 #elif defined TOOLCHAIN_GCC_ARM
aravindsv 0:ba7650f404af 500 extern "C" void _exit(int return_code) {
aravindsv 0:ba7650f404af 501 #else
aravindsv 0:ba7650f404af 502 namespace std {
aravindsv 0:ba7650f404af 503 extern "C" void exit(int return_code) {
aravindsv 0:ba7650f404af 504 #endif
aravindsv 0:ba7650f404af 505
aravindsv 0:ba7650f404af 506 #if DEVICE_STDIO_MESSAGES
aravindsv 0:ba7650f404af 507 fflush(stdout);
aravindsv 0:ba7650f404af 508 fflush(stderr);
aravindsv 0:ba7650f404af 509 #endif
aravindsv 0:ba7650f404af 510
aravindsv 0:ba7650f404af 511 #if DEVICE_SEMIHOST
aravindsv 0:ba7650f404af 512 if (mbed_interface_connected()) {
aravindsv 0:ba7650f404af 513 semihost_exit();
aravindsv 0:ba7650f404af 514 }
aravindsv 0:ba7650f404af 515 #endif
aravindsv 0:ba7650f404af 516 if (return_code) {
aravindsv 0:ba7650f404af 517 mbed_die();
aravindsv 0:ba7650f404af 518 }
aravindsv 0:ba7650f404af 519
aravindsv 0:ba7650f404af 520 while (1);
aravindsv 0:ba7650f404af 521 }
aravindsv 0:ba7650f404af 522
aravindsv 0:ba7650f404af 523 #if !defined(TOOLCHAIN_GCC_ARM) && !defined(TOOLCHAIN_GCC_CW)
aravindsv 0:ba7650f404af 524 } //namespace std
aravindsv 0:ba7650f404af 525 #endif
aravindsv 0:ba7650f404af 526
aravindsv 0:ba7650f404af 527
aravindsv 0:ba7650f404af 528 namespace mbed {
aravindsv 0:ba7650f404af 529
aravindsv 0:ba7650f404af 530 void mbed_set_unbuffered_stream(FILE *_file) {
aravindsv 0:ba7650f404af 531 #if defined (__ICCARM__)
aravindsv 0:ba7650f404af 532 char buf[2];
aravindsv 0:ba7650f404af 533 std::setvbuf(_file,buf,_IONBF,NULL);
aravindsv 0:ba7650f404af 534 #else
aravindsv 0:ba7650f404af 535 setbuf(_file, NULL);
aravindsv 0:ba7650f404af 536 #endif
aravindsv 0:ba7650f404af 537 }
aravindsv 0:ba7650f404af 538
aravindsv 0:ba7650f404af 539 int mbed_getc(FILE *_file){
aravindsv 0:ba7650f404af 540 #if defined (__ICCARM__)
aravindsv 0:ba7650f404af 541 /*This is only valid for unbuffered streams*/
aravindsv 0:ba7650f404af 542 int res = std::fgetc(_file);
aravindsv 0:ba7650f404af 543 if (res>=0){
aravindsv 0:ba7650f404af 544 _file->_Mode = (unsigned short)(_file->_Mode & ~ 0x1000);/* Unset read mode */
aravindsv 0:ba7650f404af 545 _file->_Rend = _file->_Wend;
aravindsv 0:ba7650f404af 546 _file->_Next = _file->_Wend;
aravindsv 0:ba7650f404af 547 }
aravindsv 0:ba7650f404af 548 return res;
aravindsv 0:ba7650f404af 549 #else
aravindsv 0:ba7650f404af 550 return std::fgetc(_file);
aravindsv 0:ba7650f404af 551 #endif
aravindsv 0:ba7650f404af 552 }
aravindsv 0:ba7650f404af 553
aravindsv 0:ba7650f404af 554 char* mbed_gets(char*s, int size, FILE *_file){
aravindsv 0:ba7650f404af 555 #if defined (__ICCARM__)
aravindsv 0:ba7650f404af 556 /*This is only valid for unbuffered streams*/
aravindsv 0:ba7650f404af 557 char *str = fgets(s,size,_file);
aravindsv 0:ba7650f404af 558 if (str!=NULL){
aravindsv 0:ba7650f404af 559 _file->_Mode = (unsigned short)(_file->_Mode & ~ 0x1000);/* Unset read mode */
aravindsv 0:ba7650f404af 560 _file->_Rend = _file->_Wend;
aravindsv 0:ba7650f404af 561 _file->_Next = _file->_Wend;
aravindsv 0:ba7650f404af 562 }
aravindsv 0:ba7650f404af 563 return str;
aravindsv 0:ba7650f404af 564 #else
aravindsv 0:ba7650f404af 565 return std::fgets(s,size,_file);
aravindsv 0:ba7650f404af 566 #endif
aravindsv 0:ba7650f404af 567 }
aravindsv 0:ba7650f404af 568
aravindsv 0:ba7650f404af 569 } // namespace mbed