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platform/mbed_retarget.cpp@168:e84263d55307, 2017-06-21 (annotated)

Committer:
AnnaBridge
Date:
Wed Jun 21 17:46:44 2017 +0100
Revision:
168:e84263d55307
Parent:
163:74e0ce7f98e8
Child:
169:9672193075cf
This updates the lib to the mbed lib v 145

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 160:d5399cc887bb 1 /* mbed Microcontroller Library
<> 160:d5399cc887bb 2 * Copyright (c) 2006-2015 ARM Limited
<> 160:d5399cc887bb 3 *
<> 160:d5399cc887bb 4 * Licensed under the Apache License, Version 2.0 (the "License");
<> 160:d5399cc887bb 5 * you may not use this file except in compliance with the License.
<> 160:d5399cc887bb 6 * You may obtain a copy of the License at
<> 160:d5399cc887bb 7 *
<> 160:d5399cc887bb 8 * http://www.apache.org/licenses/LICENSE-2.0
<> 160:d5399cc887bb 9 *
<> 160:d5399cc887bb 10 * Unless required by applicable law or agreed to in writing, software
<> 160:d5399cc887bb 11 * distributed under the License is distributed on an "AS IS" BASIS,
<> 160:d5399cc887bb 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 160:d5399cc887bb 13 * See the License for the specific language governing permissions and
<> 160:d5399cc887bb 14 * limitations under the License.
<> 160:d5399cc887bb 15 */
<> 160:d5399cc887bb 16 #include "platform/platform.h"
AnnaBridge 168:e84263d55307 17 #include "platform/FilePath.h"
<> 160:d5399cc887bb 18 #include "hal/serial_api.h"
<> 160:d5399cc887bb 19 #include "platform/mbed_toolchain.h"
<> 160:d5399cc887bb 20 #include "platform/mbed_semihost_api.h"
<> 160:d5399cc887bb 21 #include "platform/mbed_interface.h"
<> 160:d5399cc887bb 22 #include "platform/SingletonPtr.h"
<> 160:d5399cc887bb 23 #include "platform/PlatformMutex.h"
<> 160:d5399cc887bb 24 #include "platform/mbed_error.h"
<> 160:d5399cc887bb 25 #include "platform/mbed_stats.h"
AnnaBridge 168:e84263d55307 26 #include "platform/mbed_critical.h"
<> 160:d5399cc887bb 27 #include <stdlib.h>
<> 160:d5399cc887bb 28 #include <string.h>
AnnaBridge 168:e84263d55307 29 #include <limits.h>
<> 160:d5399cc887bb 30 #if DEVICE_STDIO_MESSAGES
<> 160:d5399cc887bb 31 #include <stdio.h>
<> 160:d5399cc887bb 32 #endif
<> 160:d5399cc887bb 33 #include <errno.h>
<> 160:d5399cc887bb 34 #include "platform/mbed_retarget.h"
<> 160:d5399cc887bb 35
<> 160:d5399cc887bb 36 #if defined(__ARMCC_VERSION)
<> 160:d5399cc887bb 37 # include <rt_sys.h>
<> 160:d5399cc887bb 38 # define PREFIX(x) _sys##x
<> 160:d5399cc887bb 39 # define OPEN_MAX _SYS_OPEN
<> 160:d5399cc887bb 40 # ifdef __MICROLIB
<> 160:d5399cc887bb 41 # pragma import(__use_full_stdio)
<> 160:d5399cc887bb 42 # endif
<> 160:d5399cc887bb 43
<> 160:d5399cc887bb 44 #elif defined(__ICCARM__)
<> 160:d5399cc887bb 45 # include <yfuns.h>
<> 160:d5399cc887bb 46 # define PREFIX(x) _##x
<> 160:d5399cc887bb 47 # define OPEN_MAX 16
<> 160:d5399cc887bb 48
<> 160:d5399cc887bb 49 # define STDIN_FILENO 0
<> 160:d5399cc887bb 50 # define STDOUT_FILENO 1
<> 160:d5399cc887bb 51 # define STDERR_FILENO 2
<> 160:d5399cc887bb 52
<> 160:d5399cc887bb 53 #else
<> 160:d5399cc887bb 54 # include <sys/stat.h>
<> 160:d5399cc887bb 55 # include <sys/syslimits.h>
<> 160:d5399cc887bb 56 # define PREFIX(x) x
<> 160:d5399cc887bb 57 #endif
<> 160:d5399cc887bb 58
<> 160:d5399cc887bb 59 #define FILE_HANDLE_RESERVED 0xFFFFFFFF
<> 160:d5399cc887bb 60
<> 160:d5399cc887bb 61 using namespace mbed;
<> 160:d5399cc887bb 62
<> 160:d5399cc887bb 63 #if defined(__MICROLIB) && (__ARMCC_VERSION>5030000)
<> 160:d5399cc887bb 64 // Before version 5.03, we were using a patched version of microlib with proper names
<> 160:d5399cc887bb 65 extern const char __stdin_name[] = ":tt";
<> 160:d5399cc887bb 66 extern const char __stdout_name[] = ":tt";
<> 160:d5399cc887bb 67 extern const char __stderr_name[] = ":tt";
<> 160:d5399cc887bb 68
<> 160:d5399cc887bb 69 #else
<> 160:d5399cc887bb 70 extern const char __stdin_name[] = "/stdin";
<> 160:d5399cc887bb 71 extern const char __stdout_name[] = "/stdout";
<> 160:d5399cc887bb 72 extern const char __stderr_name[] = "/stderr";
<> 160:d5399cc887bb 73 #endif
<> 160:d5399cc887bb 74
<> 160:d5399cc887bb 75 unsigned char *mbed_heap_start = 0;
<> 160:d5399cc887bb 76 uint32_t mbed_heap_size = 0;
<> 160:d5399cc887bb 77
<> 160:d5399cc887bb 78 /* newlib has the filehandle field in the FILE struct as a short, so
<> 160:d5399cc887bb 79 * we can't just return a Filehandle* from _open and instead have to
<> 160:d5399cc887bb 80 * put it in a filehandles array and return the index into that array
<> 160:d5399cc887bb 81 * (or rather index+3, as filehandles 0-2 are stdin/out/err).
<> 160:d5399cc887bb 82 */
AnnaBridge 168:e84263d55307 83 static FileHandle *filehandles[OPEN_MAX];
<> 160:d5399cc887bb 84 static SingletonPtr<PlatformMutex> filehandle_mutex;
<> 160:d5399cc887bb 85
<> 160:d5399cc887bb 86 namespace mbed {
AnnaBridge 168:e84263d55307 87 void remove_filehandle(FileHandle *file) {
<> 160:d5399cc887bb 88 filehandle_mutex->lock();
<> 160:d5399cc887bb 89 /* Remove all open filehandles for this */
<> 160:d5399cc887bb 90 for (unsigned int fh_i = 0; fh_i < sizeof(filehandles)/sizeof(*filehandles); fh_i++) {
<> 160:d5399cc887bb 91 if (filehandles[fh_i] == file) {
<> 160:d5399cc887bb 92 filehandles[fh_i] = NULL;
<> 160:d5399cc887bb 93 }
<> 160:d5399cc887bb 94 }
<> 160:d5399cc887bb 95 filehandle_mutex->unlock();
<> 160:d5399cc887bb 96 }
<> 160:d5399cc887bb 97 }
<> 160:d5399cc887bb 98
<> 160:d5399cc887bb 99 #if DEVICE_SERIAL
<> 160:d5399cc887bb 100 extern int stdio_uart_inited;
<> 160:d5399cc887bb 101 extern serial_t stdio_uart;
<> 160:d5399cc887bb 102 #if MBED_CONF_PLATFORM_STDIO_CONVERT_NEWLINES
<> 160:d5399cc887bb 103 static char stdio_in_prev;
<> 160:d5399cc887bb 104 static char stdio_out_prev;
<> 160:d5399cc887bb 105 #endif
<> 160:d5399cc887bb 106 #endif
<> 160:d5399cc887bb 107
<> 160:d5399cc887bb 108 static void init_serial() {
<> 160:d5399cc887bb 109 #if DEVICE_SERIAL
<> 160:d5399cc887bb 110 if (stdio_uart_inited) return;
<> 160:d5399cc887bb 111 serial_init(&stdio_uart, STDIO_UART_TX, STDIO_UART_RX);
<> 160:d5399cc887bb 112 #if MBED_CONF_PLATFORM_STDIO_BAUD_RATE
<> 160:d5399cc887bb 113 serial_baud(&stdio_uart, MBED_CONF_PLATFORM_STDIO_BAUD_RATE);
<> 160:d5399cc887bb 114 #endif
<> 160:d5399cc887bb 115 #endif
<> 160:d5399cc887bb 116 }
<> 160:d5399cc887bb 117
AnnaBridge 168:e84263d55307 118 /**
AnnaBridge 168:e84263d55307 119 * Sets errno when file opening fails.
AnnaBridge 168:e84263d55307 120 * Wipes out the filehandle too.
AnnaBridge 168:e84263d55307 121 *
AnnaBridge 168:e84263d55307 122 * @param error is a negative error code returned from an mbed function and
AnnaBridge 168:e84263d55307 123 * will be negated to store a positive error code in errno
AnnaBridge 168:e84263d55307 124 */
AnnaBridge 168:e84263d55307 125 static int handle_open_errors(int error, unsigned filehandle_idx) {
AnnaBridge 168:e84263d55307 126 errno = -error;
AnnaBridge 168:e84263d55307 127 // Free file handle
AnnaBridge 168:e84263d55307 128 filehandles[filehandle_idx] = NULL;
AnnaBridge 168:e84263d55307 129 return -1;
AnnaBridge 168:e84263d55307 130 }
AnnaBridge 168:e84263d55307 131
<> 160:d5399cc887bb 132 static inline int openmode_to_posix(int openmode) {
<> 160:d5399cc887bb 133 int posix = openmode;
<> 160:d5399cc887bb 134 #ifdef __ARMCC_VERSION
<> 160:d5399cc887bb 135 if (openmode & OPEN_PLUS) {
<> 160:d5399cc887bb 136 posix = O_RDWR;
<> 160:d5399cc887bb 137 } else if(openmode & OPEN_W) {
<> 160:d5399cc887bb 138 posix = O_WRONLY;
<> 160:d5399cc887bb 139 } else if(openmode & OPEN_A) {
<> 160:d5399cc887bb 140 posix = O_WRONLY|O_APPEND;
<> 160:d5399cc887bb 141 } else {
<> 160:d5399cc887bb 142 posix = O_RDONLY;
<> 160:d5399cc887bb 143 }
<> 160:d5399cc887bb 144 /* a, w, a+, w+ all create if file does not already exist */
<> 160:d5399cc887bb 145 if (openmode & (OPEN_A|OPEN_W)) {
<> 160:d5399cc887bb 146 posix |= O_CREAT;
<> 160:d5399cc887bb 147 }
<> 160:d5399cc887bb 148 /* w and w+ truncate */
<> 160:d5399cc887bb 149 if (openmode & OPEN_W) {
<> 160:d5399cc887bb 150 posix |= O_TRUNC;
<> 160:d5399cc887bb 151 }
<> 160:d5399cc887bb 152 #elif defined(__ICCARM__)
<> 160:d5399cc887bb 153 switch (openmode & _LLIO_RDWRMASK) {
<> 160:d5399cc887bb 154 case _LLIO_RDONLY: posix = O_RDONLY; break;
<> 160:d5399cc887bb 155 case _LLIO_WRONLY: posix = O_WRONLY; break;
<> 160:d5399cc887bb 156 case _LLIO_RDWR : posix = O_RDWR ; break;
<> 160:d5399cc887bb 157 }
<> 160:d5399cc887bb 158 if (openmode & _LLIO_CREAT ) posix |= O_CREAT;
<> 160:d5399cc887bb 159 if (openmode & _LLIO_APPEND) posix |= O_APPEND;
<> 160:d5399cc887bb 160 if (openmode & _LLIO_TRUNC ) posix |= O_TRUNC;
<> 160:d5399cc887bb 161 #elif defined(TOOLCHAIN_GCC)
<> 160:d5399cc887bb 162 posix &= ~O_BINARY;
<> 160:d5399cc887bb 163 #endif
<> 160:d5399cc887bb 164 return posix;
<> 160:d5399cc887bb 165 }
<> 160:d5399cc887bb 166
<> 160:d5399cc887bb 167 /* @brief standard c library fopen() retargeting function.
<> 160:d5399cc887bb 168 *
<> 160:d5399cc887bb 169 * This function is invoked by the standard c library retargeting to handle fopen()
<> 160:d5399cc887bb 170 *
<> 160:d5399cc887bb 171 * @return
<> 160:d5399cc887bb 172 * On success, a valid FILEHANDLE is returned.
<> 160:d5399cc887bb 173 * On failure, -1 is returned and errno is set to an appropriate value e.g.
AnnaBridge 168:e84263d55307 174 * ENOENT file not found (default errno setting)
<> 160:d5399cc887bb 175 * EMFILE the maximum number of open files was exceeded.
<> 160:d5399cc887bb 176 *
<> 160:d5399cc887bb 177 * */
<> 160:d5399cc887bb 178 extern "C" FILEHANDLE PREFIX(_open)(const char* name, int openmode) {
<> 160:d5399cc887bb 179 #if defined(__MICROLIB) && (__ARMCC_VERSION>5030000)
<> 160:d5399cc887bb 180 // Before version 5.03, we were using a patched version of microlib with proper names
<> 160:d5399cc887bb 181 // This is the workaround that the microlib author suggested us
<> 160:d5399cc887bb 182 static int n = 0;
<> 160:d5399cc887bb 183 if (!std::strcmp(name, ":tt")) return n++;
<> 160:d5399cc887bb 184 #else
<> 160:d5399cc887bb 185 /* Use the posix convention that stdin,out,err are filehandles 0,1,2.
<> 160:d5399cc887bb 186 */
<> 160:d5399cc887bb 187 if (std::strcmp(name, __stdin_name) == 0) {
<> 160:d5399cc887bb 188 init_serial();
<> 160:d5399cc887bb 189 return 0;
<> 160:d5399cc887bb 190 } else if (std::strcmp(name, __stdout_name) == 0) {
<> 160:d5399cc887bb 191 init_serial();
<> 160:d5399cc887bb 192 return 1;
<> 160:d5399cc887bb 193 } else if (std::strcmp(name, __stderr_name) == 0) {
<> 160:d5399cc887bb 194 init_serial();
<> 160:d5399cc887bb 195 return 2;
<> 160:d5399cc887bb 196 }
<> 160:d5399cc887bb 197 #endif
<> 160:d5399cc887bb 198
<> 160:d5399cc887bb 199 // find the first empty slot in filehandles
<> 160:d5399cc887bb 200 filehandle_mutex->lock();
<> 160:d5399cc887bb 201 unsigned int fh_i;
<> 160:d5399cc887bb 202 for (fh_i = 0; fh_i < sizeof(filehandles)/sizeof(*filehandles); fh_i++) {
<> 160:d5399cc887bb 203 /* Take a next free filehandle slot available. */
<> 160:d5399cc887bb 204 if (filehandles[fh_i] == NULL) break;
<> 160:d5399cc887bb 205 }
<> 160:d5399cc887bb 206 if (fh_i >= sizeof(filehandles)/sizeof(*filehandles)) {
<> 160:d5399cc887bb 207 /* Too many file handles have been opened */
<> 160:d5399cc887bb 208 errno = EMFILE;
<> 160:d5399cc887bb 209 filehandle_mutex->unlock();
<> 160:d5399cc887bb 210 return -1;
<> 160:d5399cc887bb 211 }
AnnaBridge 168:e84263d55307 212 filehandles[fh_i] = (FileHandle*)FILE_HANDLE_RESERVED;
<> 160:d5399cc887bb 213 filehandle_mutex->unlock();
<> 160:d5399cc887bb 214
AnnaBridge 168:e84263d55307 215 FileHandle *res = NULL;
<> 160:d5399cc887bb 216
AnnaBridge 168:e84263d55307 217 /* FILENAME: ":0x12345678" describes a FileHandle* */
<> 160:d5399cc887bb 218 if (name[0] == ':') {
<> 160:d5399cc887bb 219 void *p;
AnnaBridge 168:e84263d55307 220 std::sscanf(name, ":%p", &p);
AnnaBridge 168:e84263d55307 221 res = (FileHandle*)p;
<> 160:d5399cc887bb 222
<> 160:d5399cc887bb 223 /* FILENAME: "/file_system/file_name" */
<> 160:d5399cc887bb 224 } else {
<> 160:d5399cc887bb 225 FilePath path(name);
<> 160:d5399cc887bb 226
<> 160:d5399cc887bb 227 if (!path.exists()) {
<> 160:d5399cc887bb 228 /* The first part of the filename (between first 2 '/') is not a
<> 160:d5399cc887bb 229 * registered mount point in the namespace.
<> 160:d5399cc887bb 230 */
AnnaBridge 168:e84263d55307 231 return handle_open_errors(-ENOENT, fh_i);
AnnaBridge 168:e84263d55307 232 }
AnnaBridge 168:e84263d55307 233
AnnaBridge 168:e84263d55307 234 if (path.isFile()) {
<> 160:d5399cc887bb 235 res = path.file();
<> 160:d5399cc887bb 236 } else {
AnnaBridge 168:e84263d55307 237 FileSystemHandle *fs = path.fileSystem();
<> 160:d5399cc887bb 238 if (fs == NULL) {
AnnaBridge 168:e84263d55307 239 return handle_open_errors(-ENOENT, fh_i);
<> 160:d5399cc887bb 240 }
<> 160:d5399cc887bb 241 int posix_mode = openmode_to_posix(openmode);
AnnaBridge 168:e84263d55307 242 int err = fs->open(&res, path.fileName(), posix_mode);
AnnaBridge 168:e84263d55307 243 if (err) {
AnnaBridge 168:e84263d55307 244 return handle_open_errors(err, fh_i);
<> 160:d5399cc887bb 245 }
<> 160:d5399cc887bb 246 }
<> 160:d5399cc887bb 247 }
<> 160:d5399cc887bb 248
<> 160:d5399cc887bb 249 filehandles[fh_i] = res;
<> 160:d5399cc887bb 250
<> 160:d5399cc887bb 251 return fh_i + 3; // +3 as filehandles 0-2 are stdin/out/err
<> 160:d5399cc887bb 252 }
<> 160:d5399cc887bb 253
<> 160:d5399cc887bb 254 extern "C" int PREFIX(_close)(FILEHANDLE fh) {
<> 160:d5399cc887bb 255 if (fh < 3) return 0;
<> 160:d5399cc887bb 256
AnnaBridge 168:e84263d55307 257 FileHandle* fhc = filehandles[fh-3];
<> 160:d5399cc887bb 258 filehandles[fh-3] = NULL;
AnnaBridge 168:e84263d55307 259 if (fhc == NULL) {
AnnaBridge 168:e84263d55307 260 errno = EBADF;
AnnaBridge 168:e84263d55307 261 return -1;
AnnaBridge 168:e84263d55307 262 }
<> 160:d5399cc887bb 263
<> 160:d5399cc887bb 264 int err = fhc->close();
<> 160:d5399cc887bb 265 if (err < 0) {
<> 160:d5399cc887bb 266 errno = -err;
<> 160:d5399cc887bb 267 return -1;
<> 160:d5399cc887bb 268 } else {
<> 160:d5399cc887bb 269 return 0;
<> 160:d5399cc887bb 270 }
<> 160:d5399cc887bb 271 }
<> 160:d5399cc887bb 272
<> 160:d5399cc887bb 273 #if defined(__ICCARM__)
<> 160:d5399cc887bb 274 extern "C" size_t __write (int fh, const unsigned char *buffer, size_t length) {
<> 160:d5399cc887bb 275 #else
<> 160:d5399cc887bb 276 extern "C" int PREFIX(_write)(FILEHANDLE fh, const unsigned char *buffer, unsigned int length, int mode) {
<> 160:d5399cc887bb 277 #endif
<> 160:d5399cc887bb 278 int n; // n is the number of bytes written
<> 160:d5399cc887bb 279
AnnaBridge 168:e84263d55307 280 #if defined(MBED_TRAP_ERRORS_ENABLED) && MBED_TRAP_ERRORS_ENABLED && defined(MBED_CONF_RTOS_PRESENT)
AnnaBridge 168:e84263d55307 281 if (core_util_is_isr_active() || !core_util_are_interrupts_enabled()) {
AnnaBridge 168:e84263d55307 282 error("Error - writing to a file in an ISR or critical section\r\n");
AnnaBridge 168:e84263d55307 283 }
AnnaBridge 168:e84263d55307 284 #endif
AnnaBridge 168:e84263d55307 285
<> 160:d5399cc887bb 286 if (fh < 3) {
<> 160:d5399cc887bb 287 #if DEVICE_SERIAL
<> 160:d5399cc887bb 288 if (!stdio_uart_inited) init_serial();
<> 160:d5399cc887bb 289 #if MBED_CONF_PLATFORM_STDIO_CONVERT_NEWLINES
<> 160:d5399cc887bb 290 for (unsigned int i = 0; i < length; i++) {
<> 160:d5399cc887bb 291 if (buffer[i] == '\n' && stdio_out_prev != '\r') {
<> 160:d5399cc887bb 292 serial_putc(&stdio_uart, '\r');
<> 160:d5399cc887bb 293 }
<> 160:d5399cc887bb 294 serial_putc(&stdio_uart, buffer[i]);
<> 160:d5399cc887bb 295 stdio_out_prev = buffer[i];
<> 160:d5399cc887bb 296 }
<> 160:d5399cc887bb 297 #else
<> 160:d5399cc887bb 298 for (unsigned int i = 0; i < length; i++) {
<> 160:d5399cc887bb 299 serial_putc(&stdio_uart, buffer[i]);
<> 160:d5399cc887bb 300 }
<> 160:d5399cc887bb 301 #endif
<> 160:d5399cc887bb 302 #endif
<> 160:d5399cc887bb 303 n = length;
<> 160:d5399cc887bb 304 } else {
AnnaBridge 168:e84263d55307 305 FileHandle* fhc = filehandles[fh-3];
AnnaBridge 168:e84263d55307 306 if (fhc == NULL) {
AnnaBridge 168:e84263d55307 307 errno = EBADF;
AnnaBridge 168:e84263d55307 308 return -1;
AnnaBridge 168:e84263d55307 309 }
<> 160:d5399cc887bb 310
<> 160:d5399cc887bb 311 n = fhc->write(buffer, length);
<> 160:d5399cc887bb 312 if (n < 0) {
<> 160:d5399cc887bb 313 errno = -n;
<> 160:d5399cc887bb 314 }
<> 160:d5399cc887bb 315 }
<> 160:d5399cc887bb 316 #ifdef __ARMCC_VERSION
<> 160:d5399cc887bb 317 return length-n;
<> 160:d5399cc887bb 318 #else
<> 160:d5399cc887bb 319 return n;
<> 160:d5399cc887bb 320 #endif
<> 160:d5399cc887bb 321 }
<> 160:d5399cc887bb 322
<> 160:d5399cc887bb 323 #if defined(__ICCARM__)
<> 160:d5399cc887bb 324 extern "C" size_t __read (int fh, unsigned char *buffer, size_t length) {
<> 160:d5399cc887bb 325 #else
<> 160:d5399cc887bb 326 extern "C" int PREFIX(_read)(FILEHANDLE fh, unsigned char *buffer, unsigned int length, int mode) {
<> 160:d5399cc887bb 327 #endif
<> 160:d5399cc887bb 328 int n; // n is the number of bytes read
<> 160:d5399cc887bb 329
AnnaBridge 168:e84263d55307 330 #if defined(MBED_TRAP_ERRORS_ENABLED) && MBED_TRAP_ERRORS_ENABLED && defined(MBED_CONF_RTOS_PRESENT)
AnnaBridge 168:e84263d55307 331 if (core_util_is_isr_active() || !core_util_are_interrupts_enabled()) {
AnnaBridge 168:e84263d55307 332 error("Error - reading from a file in an ISR or critical section\r\n");
AnnaBridge 168:e84263d55307 333 }
AnnaBridge 168:e84263d55307 334 #endif
AnnaBridge 168:e84263d55307 335
<> 160:d5399cc887bb 336 if (fh < 3) {
<> 160:d5399cc887bb 337 // only read a character at a time from stdin
<> 160:d5399cc887bb 338 #if DEVICE_SERIAL
<> 160:d5399cc887bb 339 if (!stdio_uart_inited) init_serial();
<> 160:d5399cc887bb 340 #if MBED_CONF_PLATFORM_STDIO_CONVERT_NEWLINES
<> 160:d5399cc887bb 341 while (true) {
<> 160:d5399cc887bb 342 char c = serial_getc(&stdio_uart);
<> 160:d5399cc887bb 343 if ((c == '\r' && stdio_in_prev != '\n') ||
<> 160:d5399cc887bb 344 (c == '\n' && stdio_in_prev != '\r')) {
<> 160:d5399cc887bb 345 stdio_in_prev = c;
<> 160:d5399cc887bb 346 *buffer = '\n';
<> 160:d5399cc887bb 347 break;
<> 160:d5399cc887bb 348 } else if ((c == '\r' && stdio_in_prev == '\n') ||
<> 160:d5399cc887bb 349 (c == '\n' && stdio_in_prev == '\r')) {
<> 160:d5399cc887bb 350 stdio_in_prev = c;
<> 160:d5399cc887bb 351 // onto next character
<> 160:d5399cc887bb 352 continue;
<> 160:d5399cc887bb 353 } else {
<> 160:d5399cc887bb 354 stdio_in_prev = c;
<> 160:d5399cc887bb 355 *buffer = c;
<> 160:d5399cc887bb 356 break;
<> 160:d5399cc887bb 357 }
<> 160:d5399cc887bb 358 }
<> 160:d5399cc887bb 359 #else
<> 160:d5399cc887bb 360 *buffer = serial_getc(&stdio_uart);
<> 160:d5399cc887bb 361 #endif
<> 160:d5399cc887bb 362 #endif
<> 160:d5399cc887bb 363 n = 1;
<> 160:d5399cc887bb 364 } else {
AnnaBridge 168:e84263d55307 365 FileHandle* fhc = filehandles[fh-3];
AnnaBridge 168:e84263d55307 366 if (fhc == NULL) {
AnnaBridge 168:e84263d55307 367 errno = EBADF;
AnnaBridge 168:e84263d55307 368 return -1;
AnnaBridge 168:e84263d55307 369 }
<> 160:d5399cc887bb 370
<> 160:d5399cc887bb 371 n = fhc->read(buffer, length);
<> 160:d5399cc887bb 372 if (n < 0) {
<> 160:d5399cc887bb 373 errno = -n;
<> 160:d5399cc887bb 374 }
<> 160:d5399cc887bb 375 }
<> 160:d5399cc887bb 376 #ifdef __ARMCC_VERSION
<> 160:d5399cc887bb 377 return length-n;
<> 160:d5399cc887bb 378 #else
<> 160:d5399cc887bb 379 return n;
<> 160:d5399cc887bb 380 #endif
<> 160:d5399cc887bb 381 }
<> 160:d5399cc887bb 382
AnnaBridge 168:e84263d55307 383
<> 160:d5399cc887bb 384 #ifdef __ARMCC_VERSION
<> 160:d5399cc887bb 385 extern "C" int PREFIX(_istty)(FILEHANDLE fh)
<> 160:d5399cc887bb 386 #else
<> 160:d5399cc887bb 387 extern "C" int _isatty(FILEHANDLE fh)
<> 160:d5399cc887bb 388 #endif
<> 160:d5399cc887bb 389 {
<> 160:d5399cc887bb 390 /* stdin, stdout and stderr should be tty */
<> 160:d5399cc887bb 391 if (fh < 3) return 1;
<> 160:d5399cc887bb 392
AnnaBridge 168:e84263d55307 393 FileHandle* fhc = filehandles[fh-3];
AnnaBridge 168:e84263d55307 394 if (fhc == NULL) {
AnnaBridge 168:e84263d55307 395 errno = EBADF;
AnnaBridge 168:e84263d55307 396 return 0;
AnnaBridge 168:e84263d55307 397 }
<> 160:d5399cc887bb 398
AnnaBridge 168:e84263d55307 399 int tty = fhc->isatty();
AnnaBridge 168:e84263d55307 400 if (tty < 0) {
AnnaBridge 168:e84263d55307 401 errno = -tty;
AnnaBridge 168:e84263d55307 402 return 0;
<> 160:d5399cc887bb 403 } else {
AnnaBridge 168:e84263d55307 404 return tty;
<> 160:d5399cc887bb 405 }
<> 160:d5399cc887bb 406 }
<> 160:d5399cc887bb 407
<> 160:d5399cc887bb 408 extern "C"
<> 160:d5399cc887bb 409 #if defined(__ARMCC_VERSION)
AnnaBridge 168:e84263d55307 410 int _sys_seek(FILEHANDLE fh, long offset)
<> 160:d5399cc887bb 411 #elif defined(__ICCARM__)
<> 160:d5399cc887bb 412 long __lseek(int fh, long offset, int whence)
<> 160:d5399cc887bb 413 #else
<> 160:d5399cc887bb 414 int _lseek(FILEHANDLE fh, int offset, int whence)
<> 160:d5399cc887bb 415 #endif
<> 160:d5399cc887bb 416 {
AnnaBridge 168:e84263d55307 417 #if defined(__ARMCC_VERSION)
AnnaBridge 168:e84263d55307 418 int whence = SEEK_SET;
AnnaBridge 168:e84263d55307 419 #endif
AnnaBridge 168:e84263d55307 420 if (fh < 3) {
AnnaBridge 168:e84263d55307 421 errno = ESPIPE;
AnnaBridge 168:e84263d55307 422 return -1;
AnnaBridge 168:e84263d55307 423 }
<> 160:d5399cc887bb 424
AnnaBridge 168:e84263d55307 425 FileHandle* fhc = filehandles[fh-3];
AnnaBridge 168:e84263d55307 426 if (fhc == NULL) {
AnnaBridge 168:e84263d55307 427 errno = EBADF;
AnnaBridge 168:e84263d55307 428 return -1;
AnnaBridge 168:e84263d55307 429 }
AnnaBridge 168:e84263d55307 430
AnnaBridge 168:e84263d55307 431 off_t off = fhc->seek(offset, whence);
AnnaBridge 168:e84263d55307 432 if (off < 0) {
AnnaBridge 168:e84263d55307 433 errno = -off;
AnnaBridge 168:e84263d55307 434 return -1;
AnnaBridge 168:e84263d55307 435 }
AnnaBridge 168:e84263d55307 436 // Assuming INT_MAX = LONG_MAX, so we don't care about prototype difference
AnnaBridge 168:e84263d55307 437 if (off > INT_MAX) {
AnnaBridge 168:e84263d55307 438 errno = EOVERFLOW;
AnnaBridge 168:e84263d55307 439 return -1;
AnnaBridge 168:e84263d55307 440 }
AnnaBridge 168:e84263d55307 441 return off;
<> 160:d5399cc887bb 442 }
<> 160:d5399cc887bb 443
<> 160:d5399cc887bb 444 #ifdef __ARMCC_VERSION
<> 160:d5399cc887bb 445 extern "C" int PREFIX(_ensure)(FILEHANDLE fh) {
<> 160:d5399cc887bb 446 if (fh < 3) return 0;
<> 160:d5399cc887bb 447
AnnaBridge 168:e84263d55307 448 FileHandle* fhc = filehandles[fh-3];
AnnaBridge 168:e84263d55307 449 if (fhc == NULL) {
AnnaBridge 168:e84263d55307 450 errno = EBADF;
AnnaBridge 168:e84263d55307 451 return -1;
AnnaBridge 168:e84263d55307 452 }
<> 160:d5399cc887bb 453
<> 160:d5399cc887bb 454 int err = fhc->sync();
<> 160:d5399cc887bb 455 if (err < 0) {
<> 160:d5399cc887bb 456 errno = -err;
<> 160:d5399cc887bb 457 return -1;
<> 160:d5399cc887bb 458 } else {
<> 160:d5399cc887bb 459 return 0;
<> 160:d5399cc887bb 460 }
<> 160:d5399cc887bb 461 }
<> 160:d5399cc887bb 462
<> 160:d5399cc887bb 463 extern "C" long PREFIX(_flen)(FILEHANDLE fh) {
AnnaBridge 168:e84263d55307 464 if (fh < 3) {
AnnaBridge 168:e84263d55307 465 errno = EINVAL;
AnnaBridge 168:e84263d55307 466 return -1;
AnnaBridge 168:e84263d55307 467 }
AnnaBridge 168:e84263d55307 468
AnnaBridge 168:e84263d55307 469 FileHandle* fhc = filehandles[fh-3];
AnnaBridge 168:e84263d55307 470 if (fhc == NULL) {
AnnaBridge 168:e84263d55307 471 errno = EBADF;
AnnaBridge 168:e84263d55307 472 return -1;
AnnaBridge 168:e84263d55307 473 }
<> 160:d5399cc887bb 474
AnnaBridge 168:e84263d55307 475 off_t size = fhc->size();
AnnaBridge 168:e84263d55307 476 if (size < 0) {
AnnaBridge 168:e84263d55307 477 errno = -size;
AnnaBridge 168:e84263d55307 478 return -1;
AnnaBridge 168:e84263d55307 479 }
AnnaBridge 168:e84263d55307 480 if (size > LONG_MAX) {
AnnaBridge 168:e84263d55307 481 errno = EOVERFLOW;
AnnaBridge 168:e84263d55307 482 return -1;
AnnaBridge 168:e84263d55307 483 }
AnnaBridge 168:e84263d55307 484 return size;
<> 160:d5399cc887bb 485 }
<> 160:d5399cc887bb 486 #endif
<> 160:d5399cc887bb 487
<> 160:d5399cc887bb 488
<> 160:d5399cc887bb 489 #if !defined(__ARMCC_VERSION) && !defined(__ICCARM__)
<> 160:d5399cc887bb 490 extern "C" int _fstat(int fd, struct stat *st) {
<> 160:d5399cc887bb 491 if (fd < 3) {
<> 160:d5399cc887bb 492 st->st_mode = S_IFCHR;
<> 160:d5399cc887bb 493 return 0;
<> 160:d5399cc887bb 494 }
<> 160:d5399cc887bb 495 errno = EBADF;
<> 160:d5399cc887bb 496 return -1;
<> 160:d5399cc887bb 497 }
<> 160:d5399cc887bb 498 #endif
<> 160:d5399cc887bb 499
<> 160:d5399cc887bb 500 namespace std {
<> 160:d5399cc887bb 501 extern "C" int remove(const char *path) {
<> 160:d5399cc887bb 502 FilePath fp(path);
AnnaBridge 168:e84263d55307 503 FileSystemHandle *fs = fp.fileSystem();
AnnaBridge 168:e84263d55307 504 if (fs == NULL) {
AnnaBridge 168:e84263d55307 505 errno = ENOENT;
AnnaBridge 168:e84263d55307 506 return -1;
AnnaBridge 168:e84263d55307 507 }
<> 160:d5399cc887bb 508
<> 160:d5399cc887bb 509 int err = fs->remove(fp.fileName());
<> 160:d5399cc887bb 510 if (err < 0) {
<> 160:d5399cc887bb 511 errno = -err;
<> 160:d5399cc887bb 512 return -1;
<> 160:d5399cc887bb 513 } else {
<> 160:d5399cc887bb 514 return 0;
<> 160:d5399cc887bb 515 }
<> 160:d5399cc887bb 516 }
<> 160:d5399cc887bb 517
<> 160:d5399cc887bb 518 extern "C" int rename(const char *oldname, const char *newname) {
<> 160:d5399cc887bb 519 FilePath fpOld(oldname);
<> 160:d5399cc887bb 520 FilePath fpNew(newname);
AnnaBridge 168:e84263d55307 521 FileSystemHandle *fsOld = fpOld.fileSystem();
AnnaBridge 168:e84263d55307 522 FileSystemHandle *fsNew = fpNew.fileSystem();
AnnaBridge 168:e84263d55307 523
AnnaBridge 168:e84263d55307 524 if (fsOld == NULL) {
AnnaBridge 168:e84263d55307 525 errno = ENOENT;
AnnaBridge 168:e84263d55307 526 return -1;
AnnaBridge 168:e84263d55307 527 }
<> 160:d5399cc887bb 528
<> 160:d5399cc887bb 529 /* rename only if both files are on the same FS */
AnnaBridge 168:e84263d55307 530 if (fsOld != fsNew) {
AnnaBridge 168:e84263d55307 531 errno = EXDEV;
AnnaBridge 168:e84263d55307 532 return -1;
AnnaBridge 168:e84263d55307 533 }
<> 160:d5399cc887bb 534
<> 160:d5399cc887bb 535 int err = fsOld->rename(fpOld.fileName(), fpNew.fileName());
<> 160:d5399cc887bb 536 if (err < 0) {
<> 160:d5399cc887bb 537 errno = -err;
<> 160:d5399cc887bb 538 return -1;
<> 160:d5399cc887bb 539 } else {
<> 160:d5399cc887bb 540 return 0;
<> 160:d5399cc887bb 541 }
<> 160:d5399cc887bb 542 }
<> 160:d5399cc887bb 543
<> 160:d5399cc887bb 544 extern "C" char *tmpnam(char *s) {
<> 160:d5399cc887bb 545 errno = EBADF;
<> 160:d5399cc887bb 546 return NULL;
<> 160:d5399cc887bb 547 }
<> 160:d5399cc887bb 548
<> 160:d5399cc887bb 549 extern "C" FILE *tmpfile() {
<> 160:d5399cc887bb 550 errno = EBADF;
<> 160:d5399cc887bb 551 return NULL;
<> 160:d5399cc887bb 552 }
<> 160:d5399cc887bb 553 } // namespace std
<> 160:d5399cc887bb 554
<> 160:d5399cc887bb 555 #ifdef __ARMCC_VERSION
<> 160:d5399cc887bb 556 extern "C" char *_sys_command_string(char *cmd, int len) {
<> 160:d5399cc887bb 557 return NULL;
<> 160:d5399cc887bb 558 }
<> 160:d5399cc887bb 559 #endif
<> 160:d5399cc887bb 560
<> 160:d5399cc887bb 561 extern "C" DIR *opendir(const char *path) {
AnnaBridge 168:e84263d55307 562 FilePath fp(path);
AnnaBridge 168:e84263d55307 563 FileSystemHandle* fs = fp.fileSystem();
AnnaBridge 168:e84263d55307 564 if (fs == NULL) {
AnnaBridge 168:e84263d55307 565 errno = ENOENT;
AnnaBridge 168:e84263d55307 566 return NULL;
AnnaBridge 168:e84263d55307 567 }
<> 160:d5399cc887bb 568
AnnaBridge 168:e84263d55307 569 DirHandle *dir;
AnnaBridge 168:e84263d55307 570 int err = fs->open(&dir, fp.fileName());
<> 160:d5399cc887bb 571 if (err < 0) {
<> 160:d5399cc887bb 572 errno = -err;
AnnaBridge 168:e84263d55307 573 return NULL;
<> 160:d5399cc887bb 574 }
<> 160:d5399cc887bb 575
<> 160:d5399cc887bb 576 return dir;
<> 160:d5399cc887bb 577 }
<> 160:d5399cc887bb 578
<> 160:d5399cc887bb 579 extern "C" struct dirent *readdir(DIR *dir) {
<> 160:d5399cc887bb 580 static struct dirent ent;
<> 160:d5399cc887bb 581 int err = dir->read(&ent);
<> 160:d5399cc887bb 582 if (err < 1) {
<> 160:d5399cc887bb 583 if (err < 0) {
<> 160:d5399cc887bb 584 errno = -err;
<> 160:d5399cc887bb 585 }
<> 160:d5399cc887bb 586 return NULL;
<> 160:d5399cc887bb 587 }
<> 160:d5399cc887bb 588
<> 160:d5399cc887bb 589 return &ent;
<> 160:d5399cc887bb 590 }
<> 160:d5399cc887bb 591
<> 160:d5399cc887bb 592 extern "C" int closedir(DIR *dir) {
<> 160:d5399cc887bb 593 int err = dir->close();
<> 160:d5399cc887bb 594 if (err < 0) {
<> 160:d5399cc887bb 595 errno = -err;
<> 160:d5399cc887bb 596 return -1;
<> 160:d5399cc887bb 597 } else {
<> 160:d5399cc887bb 598 return 0;
<> 160:d5399cc887bb 599 }
<> 160:d5399cc887bb 600 }
<> 160:d5399cc887bb 601
<> 160:d5399cc887bb 602 extern "C" void rewinddir(DIR *dir) {
<> 160:d5399cc887bb 603 dir->rewind();
<> 160:d5399cc887bb 604 }
<> 160:d5399cc887bb 605
<> 160:d5399cc887bb 606 extern "C" off_t telldir(DIR *dir) {
<> 160:d5399cc887bb 607 return dir->tell();
<> 160:d5399cc887bb 608 }
<> 160:d5399cc887bb 609
<> 160:d5399cc887bb 610 extern "C" void seekdir(DIR *dir, off_t off) {
<> 160:d5399cc887bb 611 dir->seek(off);
<> 160:d5399cc887bb 612 }
<> 160:d5399cc887bb 613
<> 160:d5399cc887bb 614 extern "C" int mkdir(const char *path, mode_t mode) {
<> 160:d5399cc887bb 615 FilePath fp(path);
AnnaBridge 168:e84263d55307 616 FileSystemHandle *fs = fp.fileSystem();
<> 160:d5399cc887bb 617 if (fs == NULL) return -1;
<> 160:d5399cc887bb 618
<> 160:d5399cc887bb 619 int err = fs->mkdir(fp.fileName(), mode);
<> 160:d5399cc887bb 620 if (err < 0) {
<> 160:d5399cc887bb 621 errno = -err;
<> 160:d5399cc887bb 622 return -1;
<> 160:d5399cc887bb 623 } else {
<> 160:d5399cc887bb 624 return 0;
<> 160:d5399cc887bb 625 }
<> 160:d5399cc887bb 626 }
<> 160:d5399cc887bb 627
<> 160:d5399cc887bb 628 extern "C" int stat(const char *path, struct stat *st) {
<> 160:d5399cc887bb 629 FilePath fp(path);
AnnaBridge 168:e84263d55307 630 FileSystemHandle *fs = fp.fileSystem();
<> 160:d5399cc887bb 631 if (fs == NULL) return -1;
<> 160:d5399cc887bb 632
<> 160:d5399cc887bb 633 int err = fs->stat(fp.fileName(), st);
<> 160:d5399cc887bb 634 if (err < 0) {
<> 160:d5399cc887bb 635 errno = -err;
<> 160:d5399cc887bb 636 return -1;
<> 160:d5399cc887bb 637 } else {
<> 160:d5399cc887bb 638 return 0;
<> 160:d5399cc887bb 639 }
<> 160:d5399cc887bb 640 }
<> 160:d5399cc887bb 641
<> 160:d5399cc887bb 642 #if defined(TOOLCHAIN_GCC)
<> 160:d5399cc887bb 643 /* prevents the exception handling name demangling code getting pulled in */
<> 160:d5399cc887bb 644 #include "mbed_error.h"
<> 160:d5399cc887bb 645 namespace __gnu_cxx {
<> 160:d5399cc887bb 646 void __verbose_terminate_handler() {
<> 160:d5399cc887bb 647 error("Exception");
<> 160:d5399cc887bb 648 }
<> 160:d5399cc887bb 649 }
<> 160:d5399cc887bb 650 extern "C" WEAK void __cxa_pure_virtual(void);
<> 160:d5399cc887bb 651 extern "C" WEAK void __cxa_pure_virtual(void) {
<> 160:d5399cc887bb 652 exit(1);
<> 160:d5399cc887bb 653 }
<> 160:d5399cc887bb 654
<> 160:d5399cc887bb 655 #endif
<> 160:d5399cc887bb 656
<> 160:d5399cc887bb 657 // Provide implementation of _sbrk (low-level dynamic memory allocation
<> 160:d5399cc887bb 658 // routine) for GCC_ARM which compares new heap pointer with MSP instead of
<> 160:d5399cc887bb 659 // SP. This make it compatible with RTX RTOS thread stacks.
<> 160:d5399cc887bb 660 #if defined(TOOLCHAIN_GCC_ARM) || defined(TOOLCHAIN_GCC_CR)
<> 160:d5399cc887bb 661
<> 160:d5399cc887bb 662 #if defined(TARGET_CORTEX_A)
<> 160:d5399cc887bb 663 extern "C" uint32_t __HeapLimit;
<> 160:d5399cc887bb 664 #endif
<> 160:d5399cc887bb 665
<> 160:d5399cc887bb 666 // Turn off the errno macro and use actual global variable instead.
<> 160:d5399cc887bb 667 #undef errno
<> 160:d5399cc887bb 668 extern "C" int errno;
<> 160:d5399cc887bb 669
<> 160:d5399cc887bb 670 // Dynamic memory allocation related syscall.
<> 160:d5399cc887bb 671 #if defined(TARGET_NUMAKER_PFM_NUC472) || defined(TARGET_NUMAKER_PFM_M453)
<> 160:d5399cc887bb 672 // Overwrite _sbrk() to support two region model (heap and stack are two distinct regions).
<> 160:d5399cc887bb 673 // __wrap__sbrk() is implemented in:
<> 160:d5399cc887bb 674 // TARGET_NUMAKER_PFM_NUC472 hal/targets/cmsis/TARGET_NUVOTON/TARGET_NUC472/TARGET_NUMAKER_PFM_NUC472/TOOLCHAIN_GCC_ARM/retarget.c
<> 160:d5399cc887bb 675 // TARGET_NUMAKER_PFM_M453 hal/targets/cmsis/TARGET_NUVOTON/TARGET_M451/TARGET_NUMAKER_PFM_M453/TOOLCHAIN_GCC_ARM/retarget.c
<> 160:d5399cc887bb 676 extern "C" void *__wrap__sbrk(int incr);
<> 160:d5399cc887bb 677 extern "C" caddr_t _sbrk(int incr) {
<> 160:d5399cc887bb 678 return (caddr_t) __wrap__sbrk(incr);
<> 160:d5399cc887bb 679 }
<> 160:d5399cc887bb 680 #else
AnnaBridge 168:e84263d55307 681 // Linker defined symbol used by _sbrk to indicate where heap should start.
AnnaBridge 168:e84263d55307 682 extern "C" uint32_t __end__;
<> 160:d5399cc887bb 683 extern "C" caddr_t _sbrk(int incr) {
<> 160:d5399cc887bb 684 static unsigned char* heap = (unsigned char*)&__end__;
<> 160:d5399cc887bb 685 unsigned char* prev_heap = heap;
<> 160:d5399cc887bb 686 unsigned char* new_heap = heap + incr;
<> 160:d5399cc887bb 687
AnnaBridge 168:e84263d55307 688 #if defined(TARGET_CORTEX_A)
<> 160:d5399cc887bb 689 if (new_heap >= (unsigned char*)&__HeapLimit) { /* __HeapLimit is end of heap section */
<> 160:d5399cc887bb 690 #else
<> 160:d5399cc887bb 691 if (new_heap >= (unsigned char*)__get_MSP()) {
<> 160:d5399cc887bb 692 #endif
<> 160:d5399cc887bb 693 errno = ENOMEM;
<> 160:d5399cc887bb 694 return (caddr_t)-1;
<> 160:d5399cc887bb 695 }
<> 160:d5399cc887bb 696
<> 160:d5399cc887bb 697 // Additional heap checking if set
<> 160:d5399cc887bb 698 if (mbed_heap_size && (new_heap >= mbed_heap_start + mbed_heap_size)) {
<> 160:d5399cc887bb 699 errno = ENOMEM;
<> 160:d5399cc887bb 700 return (caddr_t)-1;
<> 160:d5399cc887bb 701 }
<> 160:d5399cc887bb 702
<> 160:d5399cc887bb 703 heap = new_heap;
<> 160:d5399cc887bb 704 return (caddr_t) prev_heap;
<> 160:d5399cc887bb 705 }
<> 160:d5399cc887bb 706 #endif
<> 160:d5399cc887bb 707 #endif
<> 160:d5399cc887bb 708
<> 160:d5399cc887bb 709 #if defined(TOOLCHAIN_GCC_ARM) || defined(TOOLCHAIN_GCC_CR)
<> 160:d5399cc887bb 710 extern "C" void _exit(int return_code) {
<> 160:d5399cc887bb 711 #else
<> 160:d5399cc887bb 712 namespace std {
<> 160:d5399cc887bb 713 extern "C" void exit(int return_code) {
<> 160:d5399cc887bb 714 #endif
<> 160:d5399cc887bb 715
<> 160:d5399cc887bb 716 #if DEVICE_STDIO_MESSAGES
<> 160:d5399cc887bb 717 #if MBED_CONF_PLATFORM_STDIO_FLUSH_AT_EXIT
<> 160:d5399cc887bb 718 fflush(stdout);
<> 160:d5399cc887bb 719 fflush(stderr);
<> 160:d5399cc887bb 720 #endif
<> 160:d5399cc887bb 721 #endif
<> 160:d5399cc887bb 722
<> 160:d5399cc887bb 723 #if DEVICE_SEMIHOST
<> 160:d5399cc887bb 724 if (mbed_interface_connected()) {
<> 160:d5399cc887bb 725 semihost_exit();
<> 160:d5399cc887bb 726 }
<> 160:d5399cc887bb 727 #endif
<> 160:d5399cc887bb 728 if (return_code) {
<> 160:d5399cc887bb 729 mbed_die();
<> 160:d5399cc887bb 730 }
<> 160:d5399cc887bb 731
<> 160:d5399cc887bb 732 while (1);
<> 160:d5399cc887bb 733 }
<> 160:d5399cc887bb 734
<> 160:d5399cc887bb 735 #if !defined(TOOLCHAIN_GCC_ARM) && !defined(TOOLCHAIN_GCC_CR)
<> 160:d5399cc887bb 736 } //namespace std
<> 160:d5399cc887bb 737 #endif
<> 160:d5399cc887bb 738
<> 160:d5399cc887bb 739 #if defined(TOOLCHAIN_ARM) || defined(TOOLCHAIN_GCC)
<> 160:d5399cc887bb 740
<> 160:d5399cc887bb 741 // This series of function disable the registration of global destructors
<> 160:d5399cc887bb 742 // in a dynamic table which will be called when the application exit.
<> 160:d5399cc887bb 743 // In mbed, program never exit properly, it dies.
<> 160:d5399cc887bb 744 // More informations about this topic for ARMCC here:
<> 160:d5399cc887bb 745 // http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.faqs/6449.html
<> 160:d5399cc887bb 746 extern "C" {
<> 160:d5399cc887bb 747 int __aeabi_atexit(void *object, void (*dtor)(void* /*this*/), void *handle) {
<> 160:d5399cc887bb 748 return 1;
<> 160:d5399cc887bb 749 }
<> 160:d5399cc887bb 750
<> 160:d5399cc887bb 751 int __cxa_atexit(void (*dtor)(void* /*this*/), void *object, void *handle) {
<> 160:d5399cc887bb 752 return 1;
<> 160:d5399cc887bb 753 }
<> 160:d5399cc887bb 754
<> 160:d5399cc887bb 755 void __cxa_finalize(void *handle) {
<> 160:d5399cc887bb 756 }
<> 160:d5399cc887bb 757
<> 160:d5399cc887bb 758 } // end of extern "C"
<> 160:d5399cc887bb 759
<> 160:d5399cc887bb 760 #endif
<> 160:d5399cc887bb 761
<> 160:d5399cc887bb 762
<> 160:d5399cc887bb 763 #if defined(TOOLCHAIN_GCC)
<> 160:d5399cc887bb 764
<> 160:d5399cc887bb 765 /*
<> 160:d5399cc887bb 766 * Depending on how newlib is configured, it is often not enough to define
<> 160:d5399cc887bb 767 * __aeabi_atexit, __cxa_atexit and __cxa_finalize in order to override the
<> 160:d5399cc887bb 768 * behavior regarding the registration of handlers with atexit.
<> 160:d5399cc887bb 769 *
<> 160:d5399cc887bb 770 * To overcome this limitation, exit and atexit are overriden here.
<> 160:d5399cc887bb 771 */
<> 160:d5399cc887bb 772 extern "C"{
<> 160:d5399cc887bb 773
<> 160:d5399cc887bb 774 /**
<> 160:d5399cc887bb 775 * @brief Retarget of exit for GCC.
<> 160:d5399cc887bb 776 * @details Unlike the standard version, this function doesn't call any function
<> 160:d5399cc887bb 777 * registered with atexit before calling _exit.
<> 160:d5399cc887bb 778 */
<> 160:d5399cc887bb 779 void __wrap_exit(int return_code) {
<> 160:d5399cc887bb 780 _exit(return_code);
<> 160:d5399cc887bb 781 }
<> 160:d5399cc887bb 782
<> 160:d5399cc887bb 783 /**
<> 160:d5399cc887bb 784 * @brief Retarget atexit from GCC.
<> 160:d5399cc887bb 785 * @details This function will always fail and never register any handler to be
<> 160:d5399cc887bb 786 * called at exit.
<> 160:d5399cc887bb 787 */
<> 160:d5399cc887bb 788 int __wrap_atexit(void (*func)()) {
<> 160:d5399cc887bb 789 return 1;
<> 160:d5399cc887bb 790 }
<> 160:d5399cc887bb 791
<> 160:d5399cc887bb 792 }
<> 160:d5399cc887bb 793
<> 160:d5399cc887bb 794 #endif
<> 160:d5399cc887bb 795
<> 160:d5399cc887bb 796
<> 160:d5399cc887bb 797
<> 160:d5399cc887bb 798 namespace mbed {
<> 160:d5399cc887bb 799
AnnaBridge 168:e84263d55307 800 void mbed_set_unbuffered_stream(std::FILE *_file) {
<> 160:d5399cc887bb 801 #if defined (__ICCARM__)
<> 160:d5399cc887bb 802 char buf[2];
AnnaBridge 168:e84263d55307 803 std::setvbuf(_file,buf,_IONBF,NULL);
<> 160:d5399cc887bb 804 #else
<> 160:d5399cc887bb 805 setbuf(_file, NULL);
<> 160:d5399cc887bb 806 #endif
<> 160:d5399cc887bb 807 }
<> 160:d5399cc887bb 808
AnnaBridge 168:e84263d55307 809 /* Applications are expected to use fdopen()
AnnaBridge 168:e84263d55307 810 * not this function directly. This code had to live here because FILE and FileHandle
AnnaBridge 168:e84263d55307 811 * processes are all linked together here.
AnnaBridge 168:e84263d55307 812 */
AnnaBridge 168:e84263d55307 813 std::FILE *mbed_fdopen(FileHandle *fh, const char *mode)
AnnaBridge 168:e84263d55307 814 {
AnnaBridge 168:e84263d55307 815 char buf[12]; /* :0x12345678 + null byte */
AnnaBridge 168:e84263d55307 816 std::sprintf(buf, ":%p", fh);
AnnaBridge 168:e84263d55307 817 std::FILE *stream = std::fopen(buf, mode);
AnnaBridge 168:e84263d55307 818 /* newlib-nano doesn't appear to ever call _isatty itself, so
AnnaBridge 168:e84263d55307 819 * happily fully buffers an interactive stream. Deal with that here.
AnnaBridge 168:e84263d55307 820 */
AnnaBridge 168:e84263d55307 821 if (stream && fh->isatty()) {
AnnaBridge 168:e84263d55307 822 mbed_set_unbuffered_stream(stream);
AnnaBridge 168:e84263d55307 823 }
AnnaBridge 168:e84263d55307 824 return stream;
AnnaBridge 168:e84263d55307 825 }
AnnaBridge 168:e84263d55307 826
AnnaBridge 168:e84263d55307 827 int mbed_getc(std::FILE *_file){
<> 160:d5399cc887bb 828 #if defined (__ICCARM__)
<> 160:d5399cc887bb 829 /*This is only valid for unbuffered streams*/
<> 160:d5399cc887bb 830 int res = std::fgetc(_file);
<> 160:d5399cc887bb 831 if (res>=0){
<> 160:d5399cc887bb 832 _file->_Mode = (unsigned short)(_file->_Mode & ~ 0x1000);/* Unset read mode */
<> 160:d5399cc887bb 833 _file->_Rend = _file->_Wend;
<> 160:d5399cc887bb 834 _file->_Next = _file->_Wend;
AnnaBridge 168:e84263d55307 835 }
<> 160:d5399cc887bb 836 return res;
AnnaBridge 168:e84263d55307 837 #else
<> 160:d5399cc887bb 838 return std::fgetc(_file);
AnnaBridge 168:e84263d55307 839 #endif
<> 160:d5399cc887bb 840 }
<> 160:d5399cc887bb 841
AnnaBridge 168:e84263d55307 842 char* mbed_gets(char*s, int size, std::FILE *_file){
<> 160:d5399cc887bb 843 #if defined (__ICCARM__)
<> 160:d5399cc887bb 844 /*This is only valid for unbuffered streams*/
<> 160:d5399cc887bb 845 char *str = fgets(s,size,_file);
<> 160:d5399cc887bb 846 if (str!=NULL){
<> 160:d5399cc887bb 847 _file->_Mode = (unsigned short)(_file->_Mode & ~ 0x1000);/* Unset read mode */
<> 160:d5399cc887bb 848 _file->_Rend = _file->_Wend;
<> 160:d5399cc887bb 849 _file->_Next = _file->_Wend;
<> 160:d5399cc887bb 850 }
<> 160:d5399cc887bb 851 return str;
AnnaBridge 168:e84263d55307 852 #else
<> 160:d5399cc887bb 853 return std::fgets(s,size,_file);
<> 160:d5399cc887bb 854 #endif
<> 160:d5399cc887bb 855 }
<> 160:d5399cc887bb 856
<> 160:d5399cc887bb 857 } // namespace mbed
<> 160:d5399cc887bb 858
<> 160:d5399cc887bb 859 #if defined (__ICCARM__)
<> 160:d5399cc887bb 860 // Stub out locks when an rtos is not present
<> 160:d5399cc887bb 861 extern "C" WEAK void __iar_system_Mtxinit(__iar_Rmtx *mutex) {}
<> 160:d5399cc887bb 862 extern "C" WEAK void __iar_system_Mtxdst(__iar_Rmtx *mutex) {}
<> 160:d5399cc887bb 863 extern "C" WEAK void __iar_system_Mtxlock(__iar_Rmtx *mutex) {}
<> 160:d5399cc887bb 864 extern "C" WEAK void __iar_system_Mtxunlock(__iar_Rmtx *mutex) {}
<> 160:d5399cc887bb 865 extern "C" WEAK void __iar_file_Mtxinit(__iar_Rmtx *mutex) {}
<> 160:d5399cc887bb 866 extern "C" WEAK void __iar_file_Mtxdst(__iar_Rmtx *mutex) {}
<> 160:d5399cc887bb 867 extern "C" WEAK void __iar_file_Mtxlock(__iar_Rmtx *mutex) {}
<> 160:d5399cc887bb 868 extern "C" WEAK void __iar_file_Mtxunlock(__iar_Rmtx *mutex) {}
<> 160:d5399cc887bb 869 #elif defined(__CC_ARM)
<> 160:d5399cc887bb 870 // Do nothing
<> 160:d5399cc887bb 871 #elif defined (__GNUC__)
<> 160:d5399cc887bb 872 struct _reent;
<> 160:d5399cc887bb 873 // Stub out locks when an rtos is not present
<> 160:d5399cc887bb 874 extern "C" WEAK void __rtos_malloc_lock( struct _reent *_r ) {}
<> 160:d5399cc887bb 875 extern "C" WEAK void __rtos_malloc_unlock( struct _reent *_r ) {}
<> 160:d5399cc887bb 876 extern "C" WEAK void __rtos_env_lock( struct _reent *_r ) {}
<> 160:d5399cc887bb 877 extern "C" WEAK void __rtos_env_unlock( struct _reent *_r ) {}
<> 160:d5399cc887bb 878
<> 160:d5399cc887bb 879 extern "C" void __malloc_lock( struct _reent *_r )
<> 160:d5399cc887bb 880 {
<> 160:d5399cc887bb 881 __rtos_malloc_lock(_r);
<> 160:d5399cc887bb 882 }
<> 160:d5399cc887bb 883
<> 160:d5399cc887bb 884 extern "C" void __malloc_unlock( struct _reent *_r )
<> 160:d5399cc887bb 885 {
<> 160:d5399cc887bb 886 __rtos_malloc_unlock(_r);
<> 160:d5399cc887bb 887 }
<> 160:d5399cc887bb 888
<> 160:d5399cc887bb 889 extern "C" void __env_lock( struct _reent *_r )
<> 160:d5399cc887bb 890 {
<> 160:d5399cc887bb 891 __rtos_env_lock(_r);
<> 160:d5399cc887bb 892 }
<> 160:d5399cc887bb 893
<> 160:d5399cc887bb 894 extern "C" void __env_unlock( struct _reent *_r )
<> 160:d5399cc887bb 895 {
<> 160:d5399cc887bb 896 __rtos_env_unlock(_r);
<> 160:d5399cc887bb 897 }
<> 160:d5399cc887bb 898
<> 160:d5399cc887bb 899 #define CXA_GUARD_INIT_DONE (1 << 0)
<> 160:d5399cc887bb 900 #define CXA_GUARD_INIT_IN_PROGRESS (1 << 1)
<> 160:d5399cc887bb 901 #define CXA_GUARD_MASK (CXA_GUARD_INIT_DONE | CXA_GUARD_INIT_IN_PROGRESS)
<> 160:d5399cc887bb 902
<> 160:d5399cc887bb 903 extern "C" int __cxa_guard_acquire(int *guard_object_p)
<> 160:d5399cc887bb 904 {
<> 160:d5399cc887bb 905 uint8_t *guard_object = (uint8_t *)guard_object_p;
<> 160:d5399cc887bb 906 if (CXA_GUARD_INIT_DONE == (*guard_object & CXA_GUARD_MASK)) {
<> 160:d5399cc887bb 907 return 0;
<> 160:d5399cc887bb 908 }
<> 160:d5399cc887bb 909 singleton_lock();
<> 160:d5399cc887bb 910 if (CXA_GUARD_INIT_DONE == (*guard_object & CXA_GUARD_MASK)) {
<> 160:d5399cc887bb 911 singleton_unlock();
<> 160:d5399cc887bb 912 return 0;
<> 160:d5399cc887bb 913 }
<> 160:d5399cc887bb 914 MBED_ASSERT(0 == (*guard_object & CXA_GUARD_MASK));
<> 160:d5399cc887bb 915 *guard_object = *guard_object | CXA_GUARD_INIT_IN_PROGRESS;
<> 160:d5399cc887bb 916 return 1;
<> 160:d5399cc887bb 917 }
<> 160:d5399cc887bb 918
<> 160:d5399cc887bb 919 extern "C" void __cxa_guard_release(int *guard_object_p)
<> 160:d5399cc887bb 920 {
<> 160:d5399cc887bb 921 uint8_t *guard_object = (uint8_t *)guard_object_p;
<> 160:d5399cc887bb 922 MBED_ASSERT(CXA_GUARD_INIT_IN_PROGRESS == (*guard_object & CXA_GUARD_MASK));
<> 160:d5399cc887bb 923 *guard_object = (*guard_object & ~CXA_GUARD_MASK) | CXA_GUARD_INIT_DONE;
<> 160:d5399cc887bb 924 singleton_unlock();
<> 160:d5399cc887bb 925 }
<> 160:d5399cc887bb 926
<> 160:d5399cc887bb 927 extern "C" void __cxa_guard_abort(int *guard_object_p)
<> 160:d5399cc887bb 928 {
<> 160:d5399cc887bb 929 uint8_t *guard_object = (uint8_t *)guard_object_p;
<> 160:d5399cc887bb 930 MBED_ASSERT(CXA_GUARD_INIT_IN_PROGRESS == (*guard_object & CXA_GUARD_MASK));
<> 160:d5399cc887bb 931 *guard_object = *guard_object & ~CXA_GUARD_INIT_IN_PROGRESS;
<> 160:d5399cc887bb 932 singleton_unlock();
<> 160:d5399cc887bb 933 }
<> 160:d5399cc887bb 934
<> 160:d5399cc887bb 935 #endif
<> 160:d5399cc887bb 936
<> 160:d5399cc887bb 937 void *operator new(std::size_t count)
<> 160:d5399cc887bb 938 {
<> 160:d5399cc887bb 939 void *buffer = malloc(count);
<> 160:d5399cc887bb 940 if (NULL == buffer) {
<> 160:d5399cc887bb 941 error("Operator new out of memory\r\n");
<> 160:d5399cc887bb 942 }
<> 160:d5399cc887bb 943 return buffer;
<> 160:d5399cc887bb 944 }
<> 160:d5399cc887bb 945
<> 160:d5399cc887bb 946 void *operator new[](std::size_t count)
<> 160:d5399cc887bb 947 {
<> 160:d5399cc887bb 948 void *buffer = malloc(count);
<> 160:d5399cc887bb 949 if (NULL == buffer) {
<> 160:d5399cc887bb 950 error("Operator new[] out of memory\r\n");
<> 160:d5399cc887bb 951 }
<> 160:d5399cc887bb 952 return buffer;
<> 160:d5399cc887bb 953 }
<> 160:d5399cc887bb 954
<> 160:d5399cc887bb 955 void operator delete(void *ptr)
<> 160:d5399cc887bb 956 {
<> 160:d5399cc887bb 957 if (ptr != NULL) {
<> 160:d5399cc887bb 958 free(ptr);
<> 160:d5399cc887bb 959 }
<> 160:d5399cc887bb 960 }
<> 160:d5399cc887bb 961 void operator delete[](void *ptr)
<> 160:d5399cc887bb 962 {
<> 160:d5399cc887bb 963 if (ptr != NULL) {
<> 160:d5399cc887bb 964 free(ptr);
<> 160:d5399cc887bb 965 }
<> 160:d5399cc887bb 966 }
AnnaBridge 168:e84263d55307 967
AnnaBridge 168:e84263d55307 968 #if defined(MBED_CONF_RTOS_PRESENT) && defined(MBED_TRAP_ERRORS_ENABLED) && MBED_TRAP_ERRORS_ENABLED
AnnaBridge 168:e84263d55307 969
AnnaBridge 168:e84263d55307 970 static const char* error_msg(int32_t status)
AnnaBridge 168:e84263d55307 971 {
AnnaBridge 168:e84263d55307 972 switch (status) {
AnnaBridge 168:e84263d55307 973 case osError:
AnnaBridge 168:e84263d55307 974 return "Unspecified RTOS error";
AnnaBridge 168:e84263d55307 975 case osErrorTimeout:
AnnaBridge 168:e84263d55307 976 return "Operation not completed within the timeout period";
AnnaBridge 168:e84263d55307 977 case osErrorResource:
AnnaBridge 168:e84263d55307 978 return "Resource not available";
AnnaBridge 168:e84263d55307 979 case osErrorParameter:
AnnaBridge 168:e84263d55307 980 return "Parameter error";
AnnaBridge 168:e84263d55307 981 case osErrorNoMemory:
AnnaBridge 168:e84263d55307 982 return "System is out of memory";
AnnaBridge 168:e84263d55307 983 case osErrorISR:
AnnaBridge 168:e84263d55307 984 return "Not allowed in ISR context";
AnnaBridge 168:e84263d55307 985 default:
AnnaBridge 168:e84263d55307 986 return "Unknown";
AnnaBridge 168:e84263d55307 987 }
AnnaBridge 168:e84263d55307 988 }
AnnaBridge 168:e84263d55307 989
AnnaBridge 168:e84263d55307 990 extern "C" void EvrRtxKernelError (int32_t status)
AnnaBridge 168:e84263d55307 991 {
AnnaBridge 168:e84263d55307 992 error("Kernel error %i: %s\r\n", status, error_msg(status));
AnnaBridge 168:e84263d55307 993 }
AnnaBridge 168:e84263d55307 994
AnnaBridge 168:e84263d55307 995 extern "C" void EvrRtxThreadError (osThreadId_t thread_id, int32_t status)
AnnaBridge 168:e84263d55307 996 {
AnnaBridge 168:e84263d55307 997 error("Thread %p error %i: %s\r\n", thread_id, status, error_msg(status));
AnnaBridge 168:e84263d55307 998 }
AnnaBridge 168:e84263d55307 999
AnnaBridge 168:e84263d55307 1000 extern "C" void EvrRtxTimerError (osTimerId_t timer_id, int32_t status)
AnnaBridge 168:e84263d55307 1001 {
AnnaBridge 168:e84263d55307 1002 error("Timer %p error %i: %s\r\n", timer_id, status, error_msg(status));
AnnaBridge 168:e84263d55307 1003 }
AnnaBridge 168:e84263d55307 1004
AnnaBridge 168:e84263d55307 1005 extern "C" void EvrRtxEventFlagsError (osEventFlagsId_t ef_id, int32_t status)
AnnaBridge 168:e84263d55307 1006 {
AnnaBridge 168:e84263d55307 1007 error("Event %p error %i: %s\r\n", ef_id, status, error_msg(status));
AnnaBridge 168:e84263d55307 1008 }
AnnaBridge 168:e84263d55307 1009
AnnaBridge 168:e84263d55307 1010 extern "C" void EvrRtxMutexError (osMutexId_t mutex_id, int32_t status)
AnnaBridge 168:e84263d55307 1011 {
AnnaBridge 168:e84263d55307 1012 error("Mutex %p error %i: %s\r\n", mutex_id, status, error_msg(status));
AnnaBridge 168:e84263d55307 1013 }
AnnaBridge 168:e84263d55307 1014
AnnaBridge 168:e84263d55307 1015 extern "C" void EvrRtxSemaphoreError (osSemaphoreId_t semaphore_id, int32_t status)
AnnaBridge 168:e84263d55307 1016 {
AnnaBridge 168:e84263d55307 1017 // Ignore semaphore overflow, the count will saturate with a returned error
AnnaBridge 168:e84263d55307 1018 if (status == osRtxErrorSemaphoreCountLimit) {
AnnaBridge 168:e84263d55307 1019 return;
AnnaBridge 168:e84263d55307 1020 }
AnnaBridge 168:e84263d55307 1021
AnnaBridge 168:e84263d55307 1022 error("Semaphore %p error %i\r\n", semaphore_id, status);
AnnaBridge 168:e84263d55307 1023 }
AnnaBridge 168:e84263d55307 1024
AnnaBridge 168:e84263d55307 1025 extern "C" void EvrRtxMemoryPoolError (osMemoryPoolId_t mp_id, int32_t status)
AnnaBridge 168:e84263d55307 1026 {
AnnaBridge 168:e84263d55307 1027 error("Memory Pool %p error %i\r\n", mp_id, status);
AnnaBridge 168:e84263d55307 1028 }
AnnaBridge 168:e84263d55307 1029
AnnaBridge 168:e84263d55307 1030 extern "C" void EvrRtxMessageQueueError (osMessageQueueId_t mq_id, int32_t status)
AnnaBridge 168:e84263d55307 1031 {
AnnaBridge 168:e84263d55307 1032 error("Message Queue %p error %i\r\n", mq_id, status);
AnnaBridge 168:e84263d55307 1033 }
AnnaBridge 168:e84263d55307 1034
AnnaBridge 168:e84263d55307 1035 #endif