ST / ST_Events-old

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Dependents:   HelloWorld_CCA01M1 HelloWorld_CCA02M1 CI-data-logger-server HelloWorld_CCA02M1 ... more

This is a fork of the events subdirectory of https://github.com/ARMmbed/mbed-os.

Note, you must import this library with import name: events!!!

hal/common/retarget.cpp@6361:7b5bd40de905, 2016-05-31 (annotated)

Committer:
Russ Butler
Date:
Tue May 31 17:57:41 2016 -0500
Revision:
6361:7b5bd40de905
Parent:
6337:760e146953ef
Child:
6387:1e339dc397e1
Make core mbed API thread safe



Make the mbed C++ API thread safe by adding a combination of

mutexes and critical sections.  Stub out all mutexes when the

RTOS is not present.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Mihail Stoyanov 6088:e1cf77a573c5 1 /* mbed Microcontroller Library
Mihail Stoyanov 6088:e1cf77a573c5 2 * Copyright (c) 2006-2015 ARM Limited
Mihail Stoyanov 6088:e1cf77a573c5 3 *
Mihail Stoyanov 6088:e1cf77a573c5 4 * Licensed under the Apache License, Version 2.0 (the "License");
Mihail Stoyanov 6088:e1cf77a573c5 5 * you may not use this file except in compliance with the License.
Mihail Stoyanov 6088:e1cf77a573c5 6 * You may obtain a copy of the License at
Mihail Stoyanov 6088:e1cf77a573c5 7 *
Mihail Stoyanov 6088:e1cf77a573c5 8 * http://www.apache.org/licenses/LICENSE-2.0
Mihail Stoyanov 6088:e1cf77a573c5 9 *
Mihail Stoyanov 6088:e1cf77a573c5 10 * Unless required by applicable law or agreed to in writing, software
Mihail Stoyanov 6088:e1cf77a573c5 11 * distributed under the License is distributed on an "AS IS" BASIS,
Mihail Stoyanov 6088:e1cf77a573c5 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Mihail Stoyanov 6088:e1cf77a573c5 13 * See the License for the specific language governing permissions and
Mihail Stoyanov 6088:e1cf77a573c5 14 * limitations under the License.
Mihail Stoyanov 6088:e1cf77a573c5 15 */
Mihail Stoyanov 6088:e1cf77a573c5 16 #include "platform.h"
Mihail Stoyanov 6088:e1cf77a573c5 17 #include "FileHandle.h"
Mihail Stoyanov 6088:e1cf77a573c5 18 #include "FileSystemLike.h"
Mihail Stoyanov 6088:e1cf77a573c5 19 #include "FilePath.h"
Mihail Stoyanov 6088:e1cf77a573c5 20 #include "serial_api.h"
Mihail Stoyanov 6088:e1cf77a573c5 21 #include "toolchain.h"
Mihail Stoyanov 6088:e1cf77a573c5 22 #include "semihost_api.h"
Mihail Stoyanov 6088:e1cf77a573c5 23 #include "mbed_interface.h"
Mihail Stoyanov 6088:e1cf77a573c5 24 #if DEVICE_STDIO_MESSAGES
Mihail Stoyanov 6088:e1cf77a573c5 25 #include <stdio.h>
Mihail Stoyanov 6088:e1cf77a573c5 26 #endif
Mihail Stoyanov 6088:e1cf77a573c5 27 #include <errno.h>
Mihail Stoyanov 6088:e1cf77a573c5 28
Mihail Stoyanov 6088:e1cf77a573c5 29 #if defined(__ARMCC_VERSION)
Mihail Stoyanov 6088:e1cf77a573c5 30 # include <rt_sys.h>
Mihail Stoyanov 6088:e1cf77a573c5 31 # define PREFIX(x) _sys##x
Mihail Stoyanov 6088:e1cf77a573c5 32 # define OPEN_MAX _SYS_OPEN
Mihail Stoyanov 6088:e1cf77a573c5 33 # ifdef __MICROLIB
Mihail Stoyanov 6088:e1cf77a573c5 34 # pragma import(__use_full_stdio)
Mihail Stoyanov 6088:e1cf77a573c5 35 # endif
Mihail Stoyanov 6088:e1cf77a573c5 36
Mihail Stoyanov 6088:e1cf77a573c5 37 #elif defined(__ICCARM__)
Mihail Stoyanov 6088:e1cf77a573c5 38 # include <yfuns.h>
Mihail Stoyanov 6088:e1cf77a573c5 39 # define PREFIX(x) _##x
Mihail Stoyanov 6088:e1cf77a573c5 40 # define OPEN_MAX 16
Mihail Stoyanov 6088:e1cf77a573c5 41
Mihail Stoyanov 6088:e1cf77a573c5 42 # define STDIN_FILENO 0
Mihail Stoyanov 6088:e1cf77a573c5 43 # define STDOUT_FILENO 1
Mihail Stoyanov 6088:e1cf77a573c5 44 # define STDERR_FILENO 2
Mihail Stoyanov 6088:e1cf77a573c5 45
Mihail Stoyanov 6088:e1cf77a573c5 46 #else
Mihail Stoyanov 6088:e1cf77a573c5 47 # include <sys/stat.h>
Mihail Stoyanov 6088:e1cf77a573c5 48 # include <sys/unistd.h>
Mihail Stoyanov 6088:e1cf77a573c5 49 # include <sys/syslimits.h>
Mihail Stoyanov 6088:e1cf77a573c5 50 # define PREFIX(x) x
Mihail Stoyanov 6088:e1cf77a573c5 51 #endif
Mihail Stoyanov 6088:e1cf77a573c5 52
Russ Butler 6361:7b5bd40de905 53 #define FILE_HANDLE_RESERVED 0xFFFFFFFF
Russ Butler 6361:7b5bd40de905 54
Mihail Stoyanov 6088:e1cf77a573c5 55 using namespace mbed;
Mihail Stoyanov 6088:e1cf77a573c5 56
Mihail Stoyanov 6088:e1cf77a573c5 57 #if defined(__MICROLIB) && (__ARMCC_VERSION>5030000)
Mihail Stoyanov 6088:e1cf77a573c5 58 // Before version 5.03, we were using a patched version of microlib with proper names
Mihail Stoyanov 6088:e1cf77a573c5 59 extern const char __stdin_name[] = ":tt";
Mihail Stoyanov 6088:e1cf77a573c5 60 extern const char __stdout_name[] = ":tt";
Mihail Stoyanov 6088:e1cf77a573c5 61 extern const char __stderr_name[] = ":tt";
Mihail Stoyanov 6088:e1cf77a573c5 62
Mihail Stoyanov 6088:e1cf77a573c5 63 #else
Mihail Stoyanov 6088:e1cf77a573c5 64 extern const char __stdin_name[] = "/stdin";
Mihail Stoyanov 6088:e1cf77a573c5 65 extern const char __stdout_name[] = "/stdout";
Mihail Stoyanov 6088:e1cf77a573c5 66 extern const char __stderr_name[] = "/stderr";
Mihail Stoyanov 6088:e1cf77a573c5 67 #endif
Mihail Stoyanov 6088:e1cf77a573c5 68
Mihail Stoyanov 6088:e1cf77a573c5 69 /* newlib has the filehandle field in the FILE struct as a short, so
Mihail Stoyanov 6088:e1cf77a573c5 70 * we can't just return a Filehandle* from _open and instead have to
Mihail Stoyanov 6088:e1cf77a573c5 71 * put it in a filehandles array and return the index into that array
Mihail Stoyanov 6088:e1cf77a573c5 72 * (or rather index+3, as filehandles 0-2 are stdin/out/err).
Mihail Stoyanov 6088:e1cf77a573c5 73 */
Mihail Stoyanov 6088:e1cf77a573c5 74 static FileHandle *filehandles[OPEN_MAX];
Russ Butler 6361:7b5bd40de905 75 static PlatformMutex filehandle_mutex;
Mihail Stoyanov 6088:e1cf77a573c5 76
Mihail Stoyanov 6088:e1cf77a573c5 77 FileHandle::~FileHandle() {
Russ Butler 6361:7b5bd40de905 78 filehandle_mutex.lock();
Mihail Stoyanov 6088:e1cf77a573c5 79 /* Remove all open filehandles for this */
Mihail Stoyanov 6088:e1cf77a573c5 80 for (unsigned int fh_i = 0; fh_i < sizeof(filehandles)/sizeof(*filehandles); fh_i++) {
Mihail Stoyanov 6088:e1cf77a573c5 81 if (filehandles[fh_i] == this) {
Mihail Stoyanov 6088:e1cf77a573c5 82 filehandles[fh_i] = NULL;
Mihail Stoyanov 6088:e1cf77a573c5 83 }
Mihail Stoyanov 6088:e1cf77a573c5 84 }
Russ Butler 6361:7b5bd40de905 85 filehandle_mutex.unlock();
Mihail Stoyanov 6088:e1cf77a573c5 86 }
Mihail Stoyanov 6088:e1cf77a573c5 87
Mihail Stoyanov 6088:e1cf77a573c5 88 #if DEVICE_SERIAL
Mihail Stoyanov 6088:e1cf77a573c5 89 extern int stdio_uart_inited;
Mihail Stoyanov 6088:e1cf77a573c5 90 extern serial_t stdio_uart;
Mihail Stoyanov 6088:e1cf77a573c5 91 #endif
Mihail Stoyanov 6088:e1cf77a573c5 92
Mihail Stoyanov 6088:e1cf77a573c5 93 static void init_serial() {
Mihail Stoyanov 6088:e1cf77a573c5 94 #if DEVICE_SERIAL
Mihail Stoyanov 6088:e1cf77a573c5 95 if (stdio_uart_inited) return;
Mihail Stoyanov 6088:e1cf77a573c5 96 serial_init(&stdio_uart, STDIO_UART_TX, STDIO_UART_RX);
Mihail Stoyanov 6088:e1cf77a573c5 97 #endif
Mihail Stoyanov 6088:e1cf77a573c5 98 }
Mihail Stoyanov 6088:e1cf77a573c5 99
Mihail Stoyanov 6088:e1cf77a573c5 100 static inline int openmode_to_posix(int openmode) {
Mihail Stoyanov 6088:e1cf77a573c5 101 int posix = openmode;
Mihail Stoyanov 6088:e1cf77a573c5 102 #ifdef __ARMCC_VERSION
Mihail Stoyanov 6088:e1cf77a573c5 103 if (openmode & OPEN_PLUS) {
Mihail Stoyanov 6088:e1cf77a573c5 104 posix = O_RDWR;
Mihail Stoyanov 6088:e1cf77a573c5 105 } else if(openmode & OPEN_W) {
Mihail Stoyanov 6088:e1cf77a573c5 106 posix = O_WRONLY;
Mihail Stoyanov 6088:e1cf77a573c5 107 } else if(openmode & OPEN_A) {
Mihail Stoyanov 6088:e1cf77a573c5 108 posix = O_WRONLY|O_APPEND;
Mihail Stoyanov 6088:e1cf77a573c5 109 } else {
Mihail Stoyanov 6088:e1cf77a573c5 110 posix = O_RDONLY;
Mihail Stoyanov 6088:e1cf77a573c5 111 }
Mihail Stoyanov 6088:e1cf77a573c5 112 /* a, w, a+, w+ all create if file does not already exist */
Mihail Stoyanov 6088:e1cf77a573c5 113 if (openmode & (OPEN_A|OPEN_W)) {
Mihail Stoyanov 6088:e1cf77a573c5 114 posix |= O_CREAT;
Mihail Stoyanov 6088:e1cf77a573c5 115 }
Mihail Stoyanov 6088:e1cf77a573c5 116 /* w and w+ truncate */
Mihail Stoyanov 6088:e1cf77a573c5 117 if (openmode & OPEN_W) {
Mihail Stoyanov 6088:e1cf77a573c5 118 posix |= O_TRUNC;
Mihail Stoyanov 6088:e1cf77a573c5 119 }
Mihail Stoyanov 6088:e1cf77a573c5 120 #elif defined(__ICCARM__)
Mihail Stoyanov 6088:e1cf77a573c5 121 switch (openmode & _LLIO_RDWRMASK) {
Mihail Stoyanov 6088:e1cf77a573c5 122 case _LLIO_RDONLY: posix = O_RDONLY; break;
Mihail Stoyanov 6088:e1cf77a573c5 123 case _LLIO_WRONLY: posix = O_WRONLY; break;
Mihail Stoyanov 6088:e1cf77a573c5 124 case _LLIO_RDWR : posix = O_RDWR ; break;
Mihail Stoyanov 6088:e1cf77a573c5 125 }
Mihail Stoyanov 6088:e1cf77a573c5 126 if (openmode & _LLIO_CREAT ) posix |= O_CREAT;
Mihail Stoyanov 6088:e1cf77a573c5 127 if (openmode & _LLIO_APPEND) posix |= O_APPEND;
Mihail Stoyanov 6088:e1cf77a573c5 128 if (openmode & _LLIO_TRUNC ) posix |= O_TRUNC;
Mihail Stoyanov 6088:e1cf77a573c5 129 #elif defined(TOOLCHAIN_GCC)
Mihail Stoyanov 6088:e1cf77a573c5 130 posix &= ~O_BINARY;
Mihail Stoyanov 6088:e1cf77a573c5 131 #endif
Mihail Stoyanov 6088:e1cf77a573c5 132 return posix;
Mihail Stoyanov 6088:e1cf77a573c5 133 }
Mihail Stoyanov 6088:e1cf77a573c5 134
Mihail Stoyanov 6088:e1cf77a573c5 135 extern "C" FILEHANDLE PREFIX(_open)(const char* name, int openmode) {
Mihail Stoyanov 6088:e1cf77a573c5 136 #if defined(__MICROLIB) && (__ARMCC_VERSION>5030000)
Mihail Stoyanov 6088:e1cf77a573c5 137 // Before version 5.03, we were using a patched version of microlib with proper names
Mihail Stoyanov 6088:e1cf77a573c5 138 // This is the workaround that the microlib author suggested us
Mihail Stoyanov 6088:e1cf77a573c5 139 static int n = 0;
Mihail Stoyanov 6088:e1cf77a573c5 140 if (!std::strcmp(name, ":tt")) return n++;
Mihail Stoyanov 6088:e1cf77a573c5 141
Mihail Stoyanov 6088:e1cf77a573c5 142 #else
Mihail Stoyanov 6088:e1cf77a573c5 143 /* Use the posix convention that stdin,out,err are filehandles 0,1,2.
Mihail Stoyanov 6088:e1cf77a573c5 144 */
Mihail Stoyanov 6088:e1cf77a573c5 145 if (std::strcmp(name, __stdin_name) == 0) {
Mihail Stoyanov 6088:e1cf77a573c5 146 init_serial();
Mihail Stoyanov 6088:e1cf77a573c5 147 return 0;
Mihail Stoyanov 6088:e1cf77a573c5 148 } else if (std::strcmp(name, __stdout_name) == 0) {
Mihail Stoyanov 6088:e1cf77a573c5 149 init_serial();
Mihail Stoyanov 6088:e1cf77a573c5 150 return 1;
Mihail Stoyanov 6088:e1cf77a573c5 151 } else if (std::strcmp(name, __stderr_name) == 0) {
Mihail Stoyanov 6088:e1cf77a573c5 152 init_serial();
Mihail Stoyanov 6088:e1cf77a573c5 153 return 2;
Mihail Stoyanov 6088:e1cf77a573c5 154 }
Mihail Stoyanov 6088:e1cf77a573c5 155 #endif
Mihail Stoyanov 6088:e1cf77a573c5 156
Mihail Stoyanov 6088:e1cf77a573c5 157 // find the first empty slot in filehandles
Russ Butler 6361:7b5bd40de905 158 filehandle_mutex.lock();
Mihail Stoyanov 6088:e1cf77a573c5 159 unsigned int fh_i;
Mihail Stoyanov 6088:e1cf77a573c5 160 for (fh_i = 0; fh_i < sizeof(filehandles)/sizeof(*filehandles); fh_i++) {
Mihail Stoyanov 6088:e1cf77a573c5 161 if (filehandles[fh_i] == NULL) break;
Mihail Stoyanov 6088:e1cf77a573c5 162 }
Mihail Stoyanov 6088:e1cf77a573c5 163 if (fh_i >= sizeof(filehandles)/sizeof(*filehandles)) {
Russ Butler 6361:7b5bd40de905 164 filehandle_mutex.unlock();
Mihail Stoyanov 6088:e1cf77a573c5 165 return -1;
Mihail Stoyanov 6088:e1cf77a573c5 166 }
Russ Butler 6361:7b5bd40de905 167 filehandles[fh_i] = (FileHandle*)FILE_HANDLE_RESERVED;
Russ Butler 6361:7b5bd40de905 168 filehandle_mutex.unlock();
Mihail Stoyanov 6088:e1cf77a573c5 169
Mihail Stoyanov 6088:e1cf77a573c5 170 FileHandle *res;
Mihail Stoyanov 6088:e1cf77a573c5 171
Mihail Stoyanov 6088:e1cf77a573c5 172 /* FILENAME: ":0x12345678" describes a FileLike* */
Mihail Stoyanov 6088:e1cf77a573c5 173 if (name[0] == ':') {
Mihail Stoyanov 6088:e1cf77a573c5 174 void *p;
Mihail Stoyanov 6088:e1cf77a573c5 175 sscanf(name, ":%p", &p);
Mihail Stoyanov 6088:e1cf77a573c5 176 res = (FileHandle*)p;
Mihail Stoyanov 6088:e1cf77a573c5 177
Mihail Stoyanov 6088:e1cf77a573c5 178 /* FILENAME: "/file_system/file_name" */
Mihail Stoyanov 6088:e1cf77a573c5 179 } else {
Mihail Stoyanov 6088:e1cf77a573c5 180 FilePath path(name);
Mihail Stoyanov 6088:e1cf77a573c5 181
Russ Butler 6361:7b5bd40de905 182 if (!path.exists()) {
Russ Butler 6361:7b5bd40de905 183 // Free file handle
Russ Butler 6361:7b5bd40de905 184 filehandles[fh_i] = NULL;
Mihail Stoyanov 6088:e1cf77a573c5 185 return -1;
Russ Butler 6361:7b5bd40de905 186 } else if (path.isFile()) {
Mihail Stoyanov 6088:e1cf77a573c5 187 res = path.file();
Mihail Stoyanov 6088:e1cf77a573c5 188 } else {
Mihail Stoyanov 6088:e1cf77a573c5 189 FileSystemLike *fs = path.fileSystem();
Russ Butler 6361:7b5bd40de905 190 if (fs == NULL) {
Russ Butler 6361:7b5bd40de905 191 // Free file handle
Russ Butler 6361:7b5bd40de905 192 filehandles[fh_i] = NULL;
Russ Butler 6361:7b5bd40de905 193 return -1;
Russ Butler 6361:7b5bd40de905 194 }
Mihail Stoyanov 6088:e1cf77a573c5 195 int posix_mode = openmode_to_posix(openmode);
Mihail Stoyanov 6088:e1cf77a573c5 196 res = fs->open(path.fileName(), posix_mode); /* NULL if fails */
Mihail Stoyanov 6088:e1cf77a573c5 197 }
Mihail Stoyanov 6088:e1cf77a573c5 198 }
Mihail Stoyanov 6088:e1cf77a573c5 199
Russ Butler 6361:7b5bd40de905 200 if (res == NULL) {
Russ Butler 6361:7b5bd40de905 201 // Free file handle
Russ Butler 6361:7b5bd40de905 202 filehandles[fh_i] = NULL;
Russ Butler 6361:7b5bd40de905 203 return -1;
Russ Butler 6361:7b5bd40de905 204 }
Mihail Stoyanov 6088:e1cf77a573c5 205 filehandles[fh_i] = res;
Mihail Stoyanov 6088:e1cf77a573c5 206
Mihail Stoyanov 6088:e1cf77a573c5 207 return fh_i + 3; // +3 as filehandles 0-2 are stdin/out/err
Mihail Stoyanov 6088:e1cf77a573c5 208 }
Mihail Stoyanov 6088:e1cf77a573c5 209
Mihail Stoyanov 6088:e1cf77a573c5 210 extern "C" int PREFIX(_close)(FILEHANDLE fh) {
Mihail Stoyanov 6088:e1cf77a573c5 211 if (fh < 3) return 0;
Mihail Stoyanov 6088:e1cf77a573c5 212
Mihail Stoyanov 6088:e1cf77a573c5 213 FileHandle* fhc = filehandles[fh-3];
Mihail Stoyanov 6088:e1cf77a573c5 214 filehandles[fh-3] = NULL;
Mihail Stoyanov 6088:e1cf77a573c5 215 if (fhc == NULL) return -1;
Mihail Stoyanov 6088:e1cf77a573c5 216
Mihail Stoyanov 6088:e1cf77a573c5 217 return fhc->close();
Mihail Stoyanov 6088:e1cf77a573c5 218 }
Mihail Stoyanov 6088:e1cf77a573c5 219
Mihail Stoyanov 6088:e1cf77a573c5 220 #if defined(__ICCARM__)
Mihail Stoyanov 6088:e1cf77a573c5 221 extern "C" size_t __write (int fh, const unsigned char *buffer, size_t length) {
Mihail Stoyanov 6088:e1cf77a573c5 222 #else
Mihail Stoyanov 6088:e1cf77a573c5 223 extern "C" int PREFIX(_write)(FILEHANDLE fh, const unsigned char *buffer, unsigned int length, int mode) {
Mihail Stoyanov 6088:e1cf77a573c5 224 #endif
Mihail Stoyanov 6088:e1cf77a573c5 225 int n; // n is the number of bytes written
Mihail Stoyanov 6088:e1cf77a573c5 226 if (fh < 3) {
Mihail Stoyanov 6088:e1cf77a573c5 227 #if DEVICE_SERIAL
Mihail Stoyanov 6088:e1cf77a573c5 228 if (!stdio_uart_inited) init_serial();
Mihail Stoyanov 6088:e1cf77a573c5 229 for (unsigned int i = 0; i < length; i++) {
Mihail Stoyanov 6088:e1cf77a573c5 230 serial_putc(&stdio_uart, buffer[i]);
Mihail Stoyanov 6088:e1cf77a573c5 231 }
Mihail Stoyanov 6088:e1cf77a573c5 232 #endif
Mihail Stoyanov 6088:e1cf77a573c5 233 n = length;
Mihail Stoyanov 6088:e1cf77a573c5 234 } else {
Mihail Stoyanov 6088:e1cf77a573c5 235 FileHandle* fhc = filehandles[fh-3];
Mihail Stoyanov 6088:e1cf77a573c5 236 if (fhc == NULL) return -1;
Mihail Stoyanov 6088:e1cf77a573c5 237
Mihail Stoyanov 6088:e1cf77a573c5 238 n = fhc->write(buffer, length);
Mihail Stoyanov 6088:e1cf77a573c5 239 }
Mihail Stoyanov 6088:e1cf77a573c5 240 #ifdef __ARMCC_VERSION
Mihail Stoyanov 6088:e1cf77a573c5 241 return length-n;
Mihail Stoyanov 6088:e1cf77a573c5 242 #else
Mihail Stoyanov 6088:e1cf77a573c5 243 return n;
Mihail Stoyanov 6088:e1cf77a573c5 244 #endif
Mihail Stoyanov 6088:e1cf77a573c5 245 }
Mihail Stoyanov 6088:e1cf77a573c5 246
Mihail Stoyanov 6088:e1cf77a573c5 247 #if defined(__ICCARM__)
Mihail Stoyanov 6088:e1cf77a573c5 248 extern "C" size_t __read (int fh, unsigned char *buffer, size_t length) {
Mihail Stoyanov 6088:e1cf77a573c5 249 #else
Mihail Stoyanov 6088:e1cf77a573c5 250 extern "C" int PREFIX(_read)(FILEHANDLE fh, unsigned char *buffer, unsigned int length, int mode) {
Mihail Stoyanov 6088:e1cf77a573c5 251 #endif
Mihail Stoyanov 6088:e1cf77a573c5 252 int n; // n is the number of bytes read
Mihail Stoyanov 6088:e1cf77a573c5 253 if (fh < 3) {
Mihail Stoyanov 6088:e1cf77a573c5 254 // only read a character at a time from stdin
Mihail Stoyanov 6088:e1cf77a573c5 255 #if DEVICE_SERIAL
Mihail Stoyanov 6088:e1cf77a573c5 256 if (!stdio_uart_inited) init_serial();
Mihail Stoyanov 6088:e1cf77a573c5 257 *buffer = serial_getc(&stdio_uart);
Mihail Stoyanov 6088:e1cf77a573c5 258 #endif
Mihail Stoyanov 6088:e1cf77a573c5 259 n = 1;
Mihail Stoyanov 6088:e1cf77a573c5 260 } else {
Mihail Stoyanov 6088:e1cf77a573c5 261 FileHandle* fhc = filehandles[fh-3];
Mihail Stoyanov 6088:e1cf77a573c5 262 if (fhc == NULL) return -1;
Mihail Stoyanov 6088:e1cf77a573c5 263
Mihail Stoyanov 6088:e1cf77a573c5 264 n = fhc->read(buffer, length);
Mihail Stoyanov 6088:e1cf77a573c5 265 }
Mihail Stoyanov 6088:e1cf77a573c5 266 #ifdef __ARMCC_VERSION
Mihail Stoyanov 6088:e1cf77a573c5 267 return length-n;
Mihail Stoyanov 6088:e1cf77a573c5 268 #else
Mihail Stoyanov 6088:e1cf77a573c5 269 return n;
Mihail Stoyanov 6088:e1cf77a573c5 270 #endif
Mihail Stoyanov 6088:e1cf77a573c5 271 }
Mihail Stoyanov 6088:e1cf77a573c5 272
Mihail Stoyanov 6088:e1cf77a573c5 273 #ifdef __ARMCC_VERSION
Mihail Stoyanov 6088:e1cf77a573c5 274 extern "C" int PREFIX(_istty)(FILEHANDLE fh)
Mihail Stoyanov 6088:e1cf77a573c5 275 #else
Mihail Stoyanov 6088:e1cf77a573c5 276 extern "C" int _isatty(FILEHANDLE fh)
Mihail Stoyanov 6088:e1cf77a573c5 277 #endif
Mihail Stoyanov 6088:e1cf77a573c5 278 {
Mihail Stoyanov 6088:e1cf77a573c5 279 /* stdin, stdout and stderr should be tty */
Mihail Stoyanov 6088:e1cf77a573c5 280 if (fh < 3) return 1;
Mihail Stoyanov 6088:e1cf77a573c5 281
Mihail Stoyanov 6088:e1cf77a573c5 282 FileHandle* fhc = filehandles[fh-3];
Mihail Stoyanov 6088:e1cf77a573c5 283 if (fhc == NULL) return -1;
Mihail Stoyanov 6088:e1cf77a573c5 284
Mihail Stoyanov 6088:e1cf77a573c5 285 return fhc->isatty();
Mihail Stoyanov 6088:e1cf77a573c5 286 }
Mihail Stoyanov 6088:e1cf77a573c5 287
Mihail Stoyanov 6088:e1cf77a573c5 288 extern "C"
Mihail Stoyanov 6088:e1cf77a573c5 289 #if defined(__ARMCC_VERSION)
Mihail Stoyanov 6088:e1cf77a573c5 290 int _sys_seek(FILEHANDLE fh, long position)
Mihail Stoyanov 6088:e1cf77a573c5 291 #elif defined(__ICCARM__)
Mihail Stoyanov 6088:e1cf77a573c5 292 long __lseek(int fh, long offset, int whence)
Mihail Stoyanov 6088:e1cf77a573c5 293 #else
Mihail Stoyanov 6088:e1cf77a573c5 294 int _lseek(FILEHANDLE fh, int offset, int whence)
Mihail Stoyanov 6088:e1cf77a573c5 295 #endif
Mihail Stoyanov 6088:e1cf77a573c5 296 {
Mihail Stoyanov 6088:e1cf77a573c5 297 if (fh < 3) return 0;
Mihail Stoyanov 6088:e1cf77a573c5 298
Mihail Stoyanov 6088:e1cf77a573c5 299 FileHandle* fhc = filehandles[fh-3];
Mihail Stoyanov 6088:e1cf77a573c5 300 if (fhc == NULL) return -1;
Mihail Stoyanov 6088:e1cf77a573c5 301
Mihail Stoyanov 6088:e1cf77a573c5 302 #if defined(__ARMCC_VERSION)
Mihail Stoyanov 6088:e1cf77a573c5 303 return fhc->lseek(position, SEEK_SET);
Mihail Stoyanov 6088:e1cf77a573c5 304 #else
Mihail Stoyanov 6088:e1cf77a573c5 305 return fhc->lseek(offset, whence);
Mihail Stoyanov 6088:e1cf77a573c5 306 #endif
Mihail Stoyanov 6088:e1cf77a573c5 307 }
Mihail Stoyanov 6088:e1cf77a573c5 308
Mihail Stoyanov 6088:e1cf77a573c5 309 #ifdef __ARMCC_VERSION
Mihail Stoyanov 6088:e1cf77a573c5 310 extern "C" int PREFIX(_ensure)(FILEHANDLE fh) {
Mihail Stoyanov 6088:e1cf77a573c5 311 if (fh < 3) return 0;
Mihail Stoyanov 6088:e1cf77a573c5 312
Mihail Stoyanov 6088:e1cf77a573c5 313 FileHandle* fhc = filehandles[fh-3];
Mihail Stoyanov 6088:e1cf77a573c5 314 if (fhc == NULL) return -1;
Mihail Stoyanov 6088:e1cf77a573c5 315
Mihail Stoyanov 6088:e1cf77a573c5 316 return fhc->fsync();
Mihail Stoyanov 6088:e1cf77a573c5 317 }
Mihail Stoyanov 6088:e1cf77a573c5 318
Mihail Stoyanov 6088:e1cf77a573c5 319 extern "C" long PREFIX(_flen)(FILEHANDLE fh) {
Mihail Stoyanov 6088:e1cf77a573c5 320 if (fh < 3) return 0;
Mihail Stoyanov 6088:e1cf77a573c5 321
Mihail Stoyanov 6088:e1cf77a573c5 322 FileHandle* fhc = filehandles[fh-3];
Mihail Stoyanov 6088:e1cf77a573c5 323 if (fhc == NULL) return -1;
Mihail Stoyanov 6088:e1cf77a573c5 324
Mihail Stoyanov 6088:e1cf77a573c5 325 return fhc->flen();
Mihail Stoyanov 6088:e1cf77a573c5 326 }
Mihail Stoyanov 6088:e1cf77a573c5 327 #endif
Mihail Stoyanov 6088:e1cf77a573c5 328
Mihail Stoyanov 6088:e1cf77a573c5 329
Mihail Stoyanov 6088:e1cf77a573c5 330 #if !defined(__ARMCC_VERSION) && !defined(__ICCARM__)
Mihail Stoyanov 6088:e1cf77a573c5 331 extern "C" int _fstat(int fd, struct stat *st) {
Mihail Stoyanov 6088:e1cf77a573c5 332 if ((STDOUT_FILENO == fd) || (STDERR_FILENO == fd) || (STDIN_FILENO == fd)) {
Mihail Stoyanov 6088:e1cf77a573c5 333 st->st_mode = S_IFCHR;
Mihail Stoyanov 6088:e1cf77a573c5 334 return 0;
Mihail Stoyanov 6088:e1cf77a573c5 335 }
Mihail Stoyanov 6088:e1cf77a573c5 336
Mihail Stoyanov 6088:e1cf77a573c5 337 errno = EBADF;
Mihail Stoyanov 6088:e1cf77a573c5 338 return -1;
Mihail Stoyanov 6088:e1cf77a573c5 339 }
Mihail Stoyanov 6088:e1cf77a573c5 340 #endif
Mihail Stoyanov 6088:e1cf77a573c5 341
Mihail Stoyanov 6088:e1cf77a573c5 342 namespace std {
Mihail Stoyanov 6088:e1cf77a573c5 343 extern "C" int remove(const char *path) {
Mihail Stoyanov 6088:e1cf77a573c5 344 FilePath fp(path);
Mihail Stoyanov 6088:e1cf77a573c5 345 FileSystemLike *fs = fp.fileSystem();
Mihail Stoyanov 6088:e1cf77a573c5 346 if (fs == NULL) return -1;
Mihail Stoyanov 6088:e1cf77a573c5 347
Mihail Stoyanov 6088:e1cf77a573c5 348 return fs->remove(fp.fileName());
Mihail Stoyanov 6088:e1cf77a573c5 349 }
Mihail Stoyanov 6088:e1cf77a573c5 350
Mihail Stoyanov 6088:e1cf77a573c5 351 extern "C" int rename(const char *oldname, const char *newname) {
Mihail Stoyanov 6088:e1cf77a573c5 352 FilePath fpOld(oldname);
Mihail Stoyanov 6088:e1cf77a573c5 353 FilePath fpNew(newname);
Mihail Stoyanov 6088:e1cf77a573c5 354 FileSystemLike *fsOld = fpOld.fileSystem();
Mihail Stoyanov 6088:e1cf77a573c5 355 FileSystemLike *fsNew = fpNew.fileSystem();
Mihail Stoyanov 6088:e1cf77a573c5 356
Mihail Stoyanov 6088:e1cf77a573c5 357 /* rename only if both files are on the same FS */
Mihail Stoyanov 6088:e1cf77a573c5 358 if (fsOld != fsNew || fsOld == NULL) return -1;
Mihail Stoyanov 6088:e1cf77a573c5 359
Mihail Stoyanov 6088:e1cf77a573c5 360 return fsOld->rename(fpOld.fileName(), fpNew.fileName());
Mihail Stoyanov 6088:e1cf77a573c5 361 }
Mihail Stoyanov 6088:e1cf77a573c5 362
Mihail Stoyanov 6088:e1cf77a573c5 363 extern "C" char *tmpnam(char *s) {
Mihail Stoyanov 6088:e1cf77a573c5 364 return NULL;
Mihail Stoyanov 6088:e1cf77a573c5 365 }
Mihail Stoyanov 6088:e1cf77a573c5 366
Mihail Stoyanov 6088:e1cf77a573c5 367 extern "C" FILE *tmpfile() {
Mihail Stoyanov 6088:e1cf77a573c5 368 return NULL;
Mihail Stoyanov 6088:e1cf77a573c5 369 }
Mihail Stoyanov 6088:e1cf77a573c5 370 } // namespace std
Mihail Stoyanov 6088:e1cf77a573c5 371
Mihail Stoyanov 6088:e1cf77a573c5 372 #ifdef __ARMCC_VERSION
Mihail Stoyanov 6088:e1cf77a573c5 373 extern "C" char *_sys_command_string(char *cmd, int len) {
Mihail Stoyanov 6088:e1cf77a573c5 374 return NULL;
Mihail Stoyanov 6088:e1cf77a573c5 375 }
Mihail Stoyanov 6088:e1cf77a573c5 376 #endif
Mihail Stoyanov 6088:e1cf77a573c5 377
Mihail Stoyanov 6088:e1cf77a573c5 378 extern "C" DIR *opendir(const char *path) {
Mihail Stoyanov 6088:e1cf77a573c5 379 /* root dir is FileSystemLike */
Mihail Stoyanov 6088:e1cf77a573c5 380 if (path[0] == '/' && path[1] == 0) {
Mihail Stoyanov 6088:e1cf77a573c5 381 return FileSystemLike::opendir();
Mihail Stoyanov 6088:e1cf77a573c5 382 }
Mihail Stoyanov 6088:e1cf77a573c5 383
Mihail Stoyanov 6088:e1cf77a573c5 384 FilePath fp(path);
Mihail Stoyanov 6088:e1cf77a573c5 385 FileSystemLike* fs = fp.fileSystem();
Mihail Stoyanov 6088:e1cf77a573c5 386 if (fs == NULL) return NULL;
Mihail Stoyanov 6088:e1cf77a573c5 387
Mihail Stoyanov 6088:e1cf77a573c5 388 return fs->opendir(fp.fileName());
Mihail Stoyanov 6088:e1cf77a573c5 389 }
Mihail Stoyanov 6088:e1cf77a573c5 390
Mihail Stoyanov 6088:e1cf77a573c5 391 extern "C" struct dirent *readdir(DIR *dir) {
Mihail Stoyanov 6088:e1cf77a573c5 392 return dir->readdir();
Mihail Stoyanov 6088:e1cf77a573c5 393 }
Mihail Stoyanov 6088:e1cf77a573c5 394
Mihail Stoyanov 6088:e1cf77a573c5 395 extern "C" int closedir(DIR *dir) {
Mihail Stoyanov 6088:e1cf77a573c5 396 return dir->closedir();
Mihail Stoyanov 6088:e1cf77a573c5 397 }
Mihail Stoyanov 6088:e1cf77a573c5 398
Mihail Stoyanov 6088:e1cf77a573c5 399 extern "C" void rewinddir(DIR *dir) {
Mihail Stoyanov 6088:e1cf77a573c5 400 dir->rewinddir();
Mihail Stoyanov 6088:e1cf77a573c5 401 }
Mihail Stoyanov 6088:e1cf77a573c5 402
Mihail Stoyanov 6088:e1cf77a573c5 403 extern "C" off_t telldir(DIR *dir) {
Mihail Stoyanov 6088:e1cf77a573c5 404 return dir->telldir();
Mihail Stoyanov 6088:e1cf77a573c5 405 }
Mihail Stoyanov 6088:e1cf77a573c5 406
Mihail Stoyanov 6088:e1cf77a573c5 407 extern "C" void seekdir(DIR *dir, off_t off) {
Mihail Stoyanov 6088:e1cf77a573c5 408 dir->seekdir(off);
Mihail Stoyanov 6088:e1cf77a573c5 409 }
Mihail Stoyanov 6088:e1cf77a573c5 410
Mihail Stoyanov 6088:e1cf77a573c5 411 extern "C" int mkdir(const char *path, mode_t mode) {
Mihail Stoyanov 6088:e1cf77a573c5 412 FilePath fp(path);
Mihail Stoyanov 6088:e1cf77a573c5 413 FileSystemLike *fs = fp.fileSystem();
Mihail Stoyanov 6088:e1cf77a573c5 414 if (fs == NULL) return -1;
Mihail Stoyanov 6088:e1cf77a573c5 415
Mihail Stoyanov 6088:e1cf77a573c5 416 return fs->mkdir(fp.fileName(), mode);
Mihail Stoyanov 6088:e1cf77a573c5 417 }
Mihail Stoyanov 6088:e1cf77a573c5 418
Mihail Stoyanov 6088:e1cf77a573c5 419 #if defined(TOOLCHAIN_GCC)
Mihail Stoyanov 6088:e1cf77a573c5 420 /* prevents the exception handling name demangling code getting pulled in */
Mihail Stoyanov 6088:e1cf77a573c5 421 #include "mbed_error.h"
Mihail Stoyanov 6088:e1cf77a573c5 422 namespace __gnu_cxx {
Mihail Stoyanov 6088:e1cf77a573c5 423 void __verbose_terminate_handler() {
Mihail Stoyanov 6088:e1cf77a573c5 424 error("Exception");
Mihail Stoyanov 6088:e1cf77a573c5 425 }
Mihail Stoyanov 6088:e1cf77a573c5 426 }
Mihail Stoyanov 6088:e1cf77a573c5 427 extern "C" WEAK void __cxa_pure_virtual(void);
Mihail Stoyanov 6088:e1cf77a573c5 428 extern "C" WEAK void __cxa_pure_virtual(void) {
Mihail Stoyanov 6088:e1cf77a573c5 429 exit(1);
Mihail Stoyanov 6088:e1cf77a573c5 430 }
Mihail Stoyanov 6088:e1cf77a573c5 431
Mihail Stoyanov 6088:e1cf77a573c5 432 #endif
Mihail Stoyanov 6088:e1cf77a573c5 433
Jaeden Amero 6335:6fbbee1c9fd1 434 #if defined(TOOLCHAIN_GCC)
Jaeden Amero 6336:a0ee59c4aa27 435 #ifdef FEATURE_UVISOR
Jaeden Amero 6336:a0ee59c4aa27 436 #include "uvisor-lib/uvisor-lib.h"
Jaeden Amero 6336:a0ee59c4aa27 437 #endif/* FEATURE_UVISOR */
Jaeden Amero 6336:a0ee59c4aa27 438
Niklas Hauser 6337:760e146953ef 439 #ifndef FEATURE_UVISOR
Niklas Hauser 6337:760e146953ef 440 extern "C" {
Niklas Hauser 6337:760e146953ef 441 void * __wrap__malloc_r(struct _reent * r, size_t size) {
Niklas Hauser 6337:760e146953ef 442 extern void * __real__malloc_r(struct _reent * r, size_t size);
Niklas Hauser 6337:760e146953ef 443 return __real__malloc_r(r, size);
Niklas Hauser 6337:760e146953ef 444 }
Niklas Hauser 6337:760e146953ef 445 void * __wrap__realloc_r(struct _reent * r, void * ptr, size_t size) {
Niklas Hauser 6337:760e146953ef 446 extern void * __real__realloc_r(struct _reent * r, void * ptr, size_t size);
Niklas Hauser 6337:760e146953ef 447 return __real__realloc_r(r, ptr, size);
Niklas Hauser 6337:760e146953ef 448 }
Niklas Hauser 6337:760e146953ef 449 void __wrap__free_r(struct _reent * r, void * ptr) {
Niklas Hauser 6337:760e146953ef 450 extern void __real__free_r(struct _reent * r, void * ptr);
Niklas Hauser 6337:760e146953ef 451 __real__free_r(r, ptr);
Niklas Hauser 6337:760e146953ef 452 }
Niklas Hauser 6337:760e146953ef 453 }
Niklas Hauser 6337:760e146953ef 454 #endif/* FEATURE_UVISOR */
Niklas Hauser 6337:760e146953ef 455
Jaeden Amero 6335:6fbbee1c9fd1 456 extern "C" WEAK void software_init_hook_rtos(void)
Jaeden Amero 6335:6fbbee1c9fd1 457 {
Jaeden Amero 6335:6fbbee1c9fd1 458 // Do nothing by default.
Jaeden Amero 6335:6fbbee1c9fd1 459 }
Jaeden Amero 6335:6fbbee1c9fd1 460
Jaeden Amero 6335:6fbbee1c9fd1 461 extern "C" void software_init_hook(void)
Jaeden Amero 6335:6fbbee1c9fd1 462 {
Jaeden Amero 6336:a0ee59c4aa27 463 #ifdef FEATURE_UVISOR
Jaeden Amero 6336:a0ee59c4aa27 464 int return_code;
Jaeden Amero 6336:a0ee59c4aa27 465
Jaeden Amero 6336:a0ee59c4aa27 466 return_code = uvisor_lib_init();
Jaeden Amero 6336:a0ee59c4aa27 467 if (return_code) {
Jaeden Amero 6336:a0ee59c4aa27 468 mbed_die();
Jaeden Amero 6336:a0ee59c4aa27 469 }
Jaeden Amero 6336:a0ee59c4aa27 470 #endif/* FEATURE_UVISOR */
Jaeden Amero 6336:a0ee59c4aa27 471
Jaeden Amero 6335:6fbbee1c9fd1 472 software_init_hook_rtos();
Jaeden Amero 6335:6fbbee1c9fd1 473 }
Jaeden Amero 6335:6fbbee1c9fd1 474 #endif
Jaeden Amero 6335:6fbbee1c9fd1 475
Mihail Stoyanov 6088:e1cf77a573c5 476 // ****************************************************************************
Mihail Stoyanov 6088:e1cf77a573c5 477 // mbed_main is a function that is called before main()
Mihail Stoyanov 6088:e1cf77a573c5 478 // mbed_sdk_init() is also a function that is called before main(), but unlike
Mihail Stoyanov 6088:e1cf77a573c5 479 // mbed_main(), it is not meant for user code, but for the SDK itself to perform
Mihail Stoyanov 6088:e1cf77a573c5 480 // initializations before main() is called.
Mihail Stoyanov 6088:e1cf77a573c5 481
Mihail Stoyanov 6088:e1cf77a573c5 482 extern "C" WEAK void mbed_main(void);
Mihail Stoyanov 6088:e1cf77a573c5 483 extern "C" WEAK void mbed_main(void) {
Mihail Stoyanov 6088:e1cf77a573c5 484 }
Mihail Stoyanov 6088:e1cf77a573c5 485
Mihail Stoyanov 6088:e1cf77a573c5 486 extern "C" WEAK void mbed_sdk_init(void);
Mihail Stoyanov 6088:e1cf77a573c5 487 extern "C" WEAK void mbed_sdk_init(void) {
Mihail Stoyanov 6088:e1cf77a573c5 488 }
Mihail Stoyanov 6088:e1cf77a573c5 489
Mihail Stoyanov 6088:e1cf77a573c5 490 #if defined(TOOLCHAIN_ARM)
Mihail Stoyanov 6088:e1cf77a573c5 491 extern "C" int $Super$$main(void);
Mihail Stoyanov 6088:e1cf77a573c5 492
Mihail Stoyanov 6088:e1cf77a573c5 493 extern "C" int $Sub$$main(void) {
Mihail Stoyanov 6088:e1cf77a573c5 494 mbed_sdk_init();
Mihail Stoyanov 6088:e1cf77a573c5 495 mbed_main();
Mihail Stoyanov 6088:e1cf77a573c5 496 return $Super$$main();
Mihail Stoyanov 6088:e1cf77a573c5 497 }
Mihail Stoyanov 6088:e1cf77a573c5 498 #elif defined(TOOLCHAIN_GCC)
Mihail Stoyanov 6088:e1cf77a573c5 499 extern "C" int __real_main(void);
Mihail Stoyanov 6088:e1cf77a573c5 500
Mihail Stoyanov 6088:e1cf77a573c5 501 extern "C" int __wrap_main(void) {
Mihail Stoyanov 6088:e1cf77a573c5 502 mbed_sdk_init();
Mihail Stoyanov 6088:e1cf77a573c5 503 mbed_main();
Mihail Stoyanov 6088:e1cf77a573c5 504 return __real_main();
Mihail Stoyanov 6088:e1cf77a573c5 505 }
Mihail Stoyanov 6088:e1cf77a573c5 506 #elif defined(TOOLCHAIN_IAR)
Mihail Stoyanov 6088:e1cf77a573c5 507 // IAR doesn't have the $Super/$Sub mechanism of armcc, nor something equivalent
Mihail Stoyanov 6088:e1cf77a573c5 508 // to ld's --wrap. It does have a --redirect, but that doesn't help, since redirecting
Mihail Stoyanov 6088:e1cf77a573c5 509 // 'main' to another symbol looses the original 'main' symbol. However, its startup
Mihail Stoyanov 6088:e1cf77a573c5 510 // code will call a function to setup argc and argv (__iar_argc_argv) if it is defined.
Mihail Stoyanov 6088:e1cf77a573c5 511 // Since mbed doesn't use argc/argv, we use this function to call our mbed_main.
Mihail Stoyanov 6088:e1cf77a573c5 512 extern "C" void __iar_argc_argv() {
Mihail Stoyanov 6088:e1cf77a573c5 513 mbed_sdk_init();
Mihail Stoyanov 6088:e1cf77a573c5 514 mbed_main();
Mihail Stoyanov 6088:e1cf77a573c5 515 }
Mihail Stoyanov 6088:e1cf77a573c5 516 #endif
Mihail Stoyanov 6088:e1cf77a573c5 517
Mihail Stoyanov 6088:e1cf77a573c5 518 // Provide implementation of _sbrk (low-level dynamic memory allocation
Mihail Stoyanov 6088:e1cf77a573c5 519 // routine) for GCC_ARM which compares new heap pointer with MSP instead of
Mihail Stoyanov 6088:e1cf77a573c5 520 // SP. This make it compatible with RTX RTOS thread stacks.
Mihail Stoyanov 6088:e1cf77a573c5 521 #if defined(TOOLCHAIN_GCC_ARM)
Mihail Stoyanov 6088:e1cf77a573c5 522 // Linker defined symbol used by _sbrk to indicate where heap should start.
Mihail Stoyanov 6088:e1cf77a573c5 523 extern "C" int __end__;
Mihail Stoyanov 6088:e1cf77a573c5 524
Mihail Stoyanov 6088:e1cf77a573c5 525 #if defined(TARGET_CORTEX_A)
Mihail Stoyanov 6088:e1cf77a573c5 526 extern "C" uint32_t __HeapLimit;
Mihail Stoyanov 6088:e1cf77a573c5 527 #endif
Mihail Stoyanov 6088:e1cf77a573c5 528
Mihail Stoyanov 6088:e1cf77a573c5 529 // Turn off the errno macro and use actual global variable instead.
Mihail Stoyanov 6088:e1cf77a573c5 530 #undef errno
Mihail Stoyanov 6088:e1cf77a573c5 531 extern "C" int errno;
Mihail Stoyanov 6088:e1cf77a573c5 532
Mihail Stoyanov 6088:e1cf77a573c5 533 // For ARM7 only
Mihail Stoyanov 6088:e1cf77a573c5 534 register unsigned char * stack_ptr __asm ("sp");
Mihail Stoyanov 6088:e1cf77a573c5 535
Mihail Stoyanov 6088:e1cf77a573c5 536 // Dynamic memory allocation related syscall.
Mihail Stoyanov 6088:e1cf77a573c5 537 extern "C" caddr_t _sbrk(int incr) {
Mihail Stoyanov 6088:e1cf77a573c5 538 static unsigned char* heap = (unsigned char*)&__end__;
Mihail Stoyanov 6088:e1cf77a573c5 539 unsigned char* prev_heap = heap;
Mihail Stoyanov 6088:e1cf77a573c5 540 unsigned char* new_heap = heap + incr;
Mihail Stoyanov 6088:e1cf77a573c5 541
Mihail Stoyanov 6088:e1cf77a573c5 542 #if defined(TARGET_ARM7)
Mihail Stoyanov 6088:e1cf77a573c5 543 if (new_heap >= stack_ptr) {
Mihail Stoyanov 6088:e1cf77a573c5 544 #elif defined(TARGET_CORTEX_A)
Mihail Stoyanov 6088:e1cf77a573c5 545 if (new_heap >= (unsigned char*)&__HeapLimit) { /* __HeapLimit is end of heap section */
Mihail Stoyanov 6088:e1cf77a573c5 546 #else
Mihail Stoyanov 6088:e1cf77a573c5 547 if (new_heap >= (unsigned char*)__get_MSP()) {
Mihail Stoyanov 6088:e1cf77a573c5 548 #endif
Mihail Stoyanov 6088:e1cf77a573c5 549 errno = ENOMEM;
Mihail Stoyanov 6088:e1cf77a573c5 550 return (caddr_t)-1;
Mihail Stoyanov 6088:e1cf77a573c5 551 }
Mihail Stoyanov 6088:e1cf77a573c5 552
Mihail Stoyanov 6088:e1cf77a573c5 553 heap = new_heap;
Mihail Stoyanov 6088:e1cf77a573c5 554 return (caddr_t) prev_heap;
Mihail Stoyanov 6088:e1cf77a573c5 555 }
Mihail Stoyanov 6088:e1cf77a573c5 556 #endif
Mihail Stoyanov 6088:e1cf77a573c5 557
Mihail Stoyanov 6088:e1cf77a573c5 558
Mihail Stoyanov 6088:e1cf77a573c5 559 #if defined TOOLCHAIN_GCC_ARM
Mihail Stoyanov 6088:e1cf77a573c5 560 extern "C" void _exit(int return_code) {
Mihail Stoyanov 6088:e1cf77a573c5 561 #else
Mihail Stoyanov 6088:e1cf77a573c5 562 namespace std {
Mihail Stoyanov 6088:e1cf77a573c5 563 extern "C" void exit(int return_code) {
Mihail Stoyanov 6088:e1cf77a573c5 564 #endif
Mihail Stoyanov 6088:e1cf77a573c5 565
Mihail Stoyanov 6088:e1cf77a573c5 566 #if DEVICE_STDIO_MESSAGES
Mihail Stoyanov 6088:e1cf77a573c5 567 fflush(stdout);
Mihail Stoyanov 6088:e1cf77a573c5 568 fflush(stderr);
Mihail Stoyanov 6088:e1cf77a573c5 569 #endif
Mihail Stoyanov 6088:e1cf77a573c5 570
Mihail Stoyanov 6088:e1cf77a573c5 571 #if DEVICE_SEMIHOST
Mihail Stoyanov 6088:e1cf77a573c5 572 if (mbed_interface_connected()) {
Mihail Stoyanov 6088:e1cf77a573c5 573 semihost_exit();
Mihail Stoyanov 6088:e1cf77a573c5 574 }
Mihail Stoyanov 6088:e1cf77a573c5 575 #endif
Mihail Stoyanov 6088:e1cf77a573c5 576 if (return_code) {
Mihail Stoyanov 6088:e1cf77a573c5 577 mbed_die();
Mihail Stoyanov 6088:e1cf77a573c5 578 }
Mihail Stoyanov 6088:e1cf77a573c5 579
Mihail Stoyanov 6088:e1cf77a573c5 580 while (1);
Mihail Stoyanov 6088:e1cf77a573c5 581 }
Mihail Stoyanov 6088:e1cf77a573c5 582
Mihail Stoyanov 6088:e1cf77a573c5 583 #if !defined(TOOLCHAIN_GCC_ARM)
Mihail Stoyanov 6088:e1cf77a573c5 584 } //namespace std
Mihail Stoyanov 6088:e1cf77a573c5 585 #endif
Mihail Stoyanov 6088:e1cf77a573c5 586
Mihail Stoyanov 6088:e1cf77a573c5 587
Mihail Stoyanov 6088:e1cf77a573c5 588 namespace mbed {
Mihail Stoyanov 6088:e1cf77a573c5 589
Mihail Stoyanov 6088:e1cf77a573c5 590 void mbed_set_unbuffered_stream(FILE *_file) {
Mihail Stoyanov 6088:e1cf77a573c5 591 #if defined (__ICCARM__)
Mihail Stoyanov 6088:e1cf77a573c5 592 char buf[2];
Mihail Stoyanov 6088:e1cf77a573c5 593 std::setvbuf(_file,buf,_IONBF,NULL);
Mihail Stoyanov 6088:e1cf77a573c5 594 #else
Mihail Stoyanov 6088:e1cf77a573c5 595 setbuf(_file, NULL);
Mihail Stoyanov 6088:e1cf77a573c5 596 #endif
Mihail Stoyanov 6088:e1cf77a573c5 597 }
Mihail Stoyanov 6088:e1cf77a573c5 598
Mihail Stoyanov 6088:e1cf77a573c5 599 int mbed_getc(FILE *_file){
Mihail Stoyanov 6088:e1cf77a573c5 600 #if defined (__ICCARM__)
Mihail Stoyanov 6088:e1cf77a573c5 601 /*This is only valid for unbuffered streams*/
Mihail Stoyanov 6088:e1cf77a573c5 602 int res = std::fgetc(_file);
Mihail Stoyanov 6088:e1cf77a573c5 603 if (res>=0){
Mihail Stoyanov 6088:e1cf77a573c5 604 _file->_Mode = (unsigned short)(_file->_Mode & ~ 0x1000);/* Unset read mode */
Mihail Stoyanov 6088:e1cf77a573c5 605 _file->_Rend = _file->_Wend;
Mihail Stoyanov 6088:e1cf77a573c5 606 _file->_Next = _file->_Wend;
Mihail Stoyanov 6088:e1cf77a573c5 607 }
Mihail Stoyanov 6088:e1cf77a573c5 608 return res;
Mihail Stoyanov 6088:e1cf77a573c5 609 #else
Mihail Stoyanov 6088:e1cf77a573c5 610 return std::fgetc(_file);
Mihail Stoyanov 6088:e1cf77a573c5 611 #endif
Mihail Stoyanov 6088:e1cf77a573c5 612 }
Mihail Stoyanov 6088:e1cf77a573c5 613
Mihail Stoyanov 6088:e1cf77a573c5 614 char* mbed_gets(char*s, int size, FILE *_file){
Mihail Stoyanov 6088:e1cf77a573c5 615 #if defined (__ICCARM__)
Mihail Stoyanov 6088:e1cf77a573c5 616 /*This is only valid for unbuffered streams*/
Mihail Stoyanov 6088:e1cf77a573c5 617 char *str = fgets(s,size,_file);
Mihail Stoyanov 6088:e1cf77a573c5 618 if (str!=NULL){
Mihail Stoyanov 6088:e1cf77a573c5 619 _file->_Mode = (unsigned short)(_file->_Mode & ~ 0x1000);/* Unset read mode */
Mihail Stoyanov 6088:e1cf77a573c5 620 _file->_Rend = _file->_Wend;
Mihail Stoyanov 6088:e1cf77a573c5 621 _file->_Next = _file->_Wend;
Mihail Stoyanov 6088:e1cf77a573c5 622 }
Mihail Stoyanov 6088:e1cf77a573c5 623 return str;
Mihail Stoyanov 6088:e1cf77a573c5 624 #else
Mihail Stoyanov 6088:e1cf77a573c5 625 return std::fgets(s,size,_file);
Mihail Stoyanov 6088:e1cf77a573c5 626 #endif
Mihail Stoyanov 6088:e1cf77a573c5 627 }
Mihail Stoyanov 6088:e1cf77a573c5 628
Russ Butler 6200:8000bcdea61d 629 #if defined (__ICCARM__)
Russ Butler 6200:8000bcdea61d 630 // Stub out locks when an rtos is not present
Russ Butler 6200:8000bcdea61d 631 extern "C" WEAK void __iar_system_Mtxinit(__iar_Rmtx *mutex) {}
Russ Butler 6200:8000bcdea61d 632 extern "C" WEAK void __iar_system_Mtxdst(__iar_Rmtx *mutex) {}
Russ Butler 6200:8000bcdea61d 633 extern "C" WEAK void __iar_system_Mtxlock(__iar_Rmtx *mutex) {}
Russ Butler 6200:8000bcdea61d 634 extern "C" WEAK void __iar_system_Mtxunlock(__iar_Rmtx *mutex) {}
Russ Butler 6200:8000bcdea61d 635 extern "C" WEAK void __iar_file_Mtxinit(__iar_Rmtx *mutex) {}
Russ Butler 6200:8000bcdea61d 636 extern "C" WEAK void __iar_file_Mtxdst(__iar_Rmtx *mutex) {}
Russ Butler 6200:8000bcdea61d 637 extern "C" WEAK void __iar_file_Mtxlock(__iar_Rmtx *mutex) {}
Russ Butler 6200:8000bcdea61d 638 extern "C" WEAK void __iar_file_Mtxunlock(__iar_Rmtx *mutex) {}
Russ Butler 6200:8000bcdea61d 639 #endif
Russ Butler 6200:8000bcdea61d 640
Mihail Stoyanov 6088:e1cf77a573c5 641 } // namespace mbed