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@7720:7391e7e92fda, 2016-08-26 (annotated)

Committer:
Russ Butler
Date:
Fri Aug 26 16:05:58 2016 -0500
Revision:
7720:7391e7e92fda
Parent:
7604:4544d30abb2a
Child:
7721:6f7c7f16fd17
Fix GCC locks for lazy object initailization



Implement the functions __cxa_guard_acquire, __cxa_guard_release and

__cxa_guard_abort so lazily initialized function-local static objects

are done so in a thread safe manner in GCC.

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"
Russ Butler 6984:94fc5d678e5f 24 #include "SingletonPtr.h"
Russ Butler 7262:f469aee29594 25 #include "PlatformMutex.h"
Russ Butler 7397:7448008aec84 26 #include "mbed_error.h"
Russ Butler 7514:a0c71f3f3d2f 27 #include "mbed_stats.h"
Russ Butler 7397:7448008aec84 28 #include <stdlib.h>
Russ Butler 7514:a0c71f3f3d2f 29 #include <string.h>
Mihail Stoyanov 6088:e1cf77a573c5 30 #if DEVICE_STDIO_MESSAGES
Mihail Stoyanov 6088:e1cf77a573c5 31 #include <stdio.h>
Mihail Stoyanov 6088:e1cf77a573c5 32 #endif
Mihail Stoyanov 6088:e1cf77a573c5 33 #include <errno.h>
Mihail Stoyanov 6088:e1cf77a573c5 34
Mihail Stoyanov 6088:e1cf77a573c5 35 #if defined(__ARMCC_VERSION)
Mihail Stoyanov 6088:e1cf77a573c5 36 # include <rt_sys.h>
Mihail Stoyanov 6088:e1cf77a573c5 37 # define PREFIX(x) _sys##x
Mihail Stoyanov 6088:e1cf77a573c5 38 # define OPEN_MAX _SYS_OPEN
Mihail Stoyanov 6088:e1cf77a573c5 39 # ifdef __MICROLIB
Mihail Stoyanov 6088:e1cf77a573c5 40 # pragma import(__use_full_stdio)
Mihail Stoyanov 6088:e1cf77a573c5 41 # endif
Mihail Stoyanov 6088:e1cf77a573c5 42
Mihail Stoyanov 6088:e1cf77a573c5 43 #elif defined(__ICCARM__)
Mihail Stoyanov 6088:e1cf77a573c5 44 # include <yfuns.h>
Mihail Stoyanov 6088:e1cf77a573c5 45 # define PREFIX(x) _##x
Mihail Stoyanov 6088:e1cf77a573c5 46 # define OPEN_MAX 16
Mihail Stoyanov 6088:e1cf77a573c5 47
Mihail Stoyanov 6088:e1cf77a573c5 48 # define STDIN_FILENO 0
Mihail Stoyanov 6088:e1cf77a573c5 49 # define STDOUT_FILENO 1
Mihail Stoyanov 6088:e1cf77a573c5 50 # define STDERR_FILENO 2
Mihail Stoyanov 6088:e1cf77a573c5 51
Mihail Stoyanov 6088:e1cf77a573c5 52 #else
Mihail Stoyanov 6088:e1cf77a573c5 53 # include <sys/stat.h>
Mihail Stoyanov 6088:e1cf77a573c5 54 # include <sys/unistd.h>
Mihail Stoyanov 6088:e1cf77a573c5 55 # include <sys/syslimits.h>
Mihail Stoyanov 6088:e1cf77a573c5 56 # define PREFIX(x) x
Mihail Stoyanov 6088:e1cf77a573c5 57 #endif
Mihail Stoyanov 6088:e1cf77a573c5 58
Russ Butler 6361:7b5bd40de905 59 #define FILE_HANDLE_RESERVED 0xFFFFFFFF
Russ Butler 6361:7b5bd40de905 60
Mihail Stoyanov 6088:e1cf77a573c5 61 using namespace mbed;
Mihail Stoyanov 6088:e1cf77a573c5 62
Mihail Stoyanov 6088:e1cf77a573c5 63 #if defined(__MICROLIB) && (__ARMCC_VERSION>5030000)
Mihail Stoyanov 6088:e1cf77a573c5 64 // Before version 5.03, we were using a patched version of microlib with proper names
Mihail Stoyanov 6088:e1cf77a573c5 65 extern const char __stdin_name[] = ":tt";
Mihail Stoyanov 6088:e1cf77a573c5 66 extern const char __stdout_name[] = ":tt";
Mihail Stoyanov 6088:e1cf77a573c5 67 extern const char __stderr_name[] = ":tt";
Mihail Stoyanov 6088:e1cf77a573c5 68
Mihail Stoyanov 6088:e1cf77a573c5 69 #else
Mihail Stoyanov 6088:e1cf77a573c5 70 extern const char __stdin_name[] = "/stdin";
Mihail Stoyanov 6088:e1cf77a573c5 71 extern const char __stdout_name[] = "/stdout";
Mihail Stoyanov 6088:e1cf77a573c5 72 extern const char __stderr_name[] = "/stderr";
Mihail Stoyanov 6088:e1cf77a573c5 73 #endif
Mihail Stoyanov 6088:e1cf77a573c5 74
Russ Butler 7395:79e8c79e165c 75 // Heap limits - only used if set
Russ Butler 7395:79e8c79e165c 76 unsigned char *mbed_heap_start = 0;
Russ Butler 7395:79e8c79e165c 77 uint32_t mbed_heap_size = 0;
Russ Butler 7395:79e8c79e165c 78
Mihail Stoyanov 6088:e1cf77a573c5 79 /* newlib has the filehandle field in the FILE struct as a short, so
Mihail Stoyanov 6088:e1cf77a573c5 80 * we can't just return a Filehandle* from _open and instead have to
Mihail Stoyanov 6088:e1cf77a573c5 81 * put it in a filehandles array and return the index into that array
Mihail Stoyanov 6088:e1cf77a573c5 82 * (or rather index+3, as filehandles 0-2 are stdin/out/err).
Mihail Stoyanov 6088:e1cf77a573c5 83 */
Mihail Stoyanov 6088:e1cf77a573c5 84 static FileHandle *filehandles[OPEN_MAX];
Russ Butler 6984:94fc5d678e5f 85 static SingletonPtr<PlatformMutex> filehandle_mutex;
Mihail Stoyanov 6088:e1cf77a573c5 86
Mihail Stoyanov 6088:e1cf77a573c5 87 FileHandle::~FileHandle() {
Russ Butler 6984:94fc5d678e5f 88 filehandle_mutex->lock();
Mihail Stoyanov 6088:e1cf77a573c5 89 /* Remove all open filehandles for this */
Mihail Stoyanov 6088:e1cf77a573c5 90 for (unsigned int fh_i = 0; fh_i < sizeof(filehandles)/sizeof(*filehandles); fh_i++) {
Mihail Stoyanov 6088:e1cf77a573c5 91 if (filehandles[fh_i] == this) {
Mihail Stoyanov 6088:e1cf77a573c5 92 filehandles[fh_i] = NULL;
Mihail Stoyanov 6088:e1cf77a573c5 93 }
Mihail Stoyanov 6088:e1cf77a573c5 94 }
Russ Butler 6984:94fc5d678e5f 95 filehandle_mutex->unlock();
Mihail Stoyanov 6088:e1cf77a573c5 96 }
Mihail Stoyanov 6088:e1cf77a573c5 97
Mihail Stoyanov 6088:e1cf77a573c5 98 #if DEVICE_SERIAL
Mihail Stoyanov 6088:e1cf77a573c5 99 extern int stdio_uart_inited;
Mihail Stoyanov 6088:e1cf77a573c5 100 extern serial_t stdio_uart;
Christopher Haster 6549:723eda4f0297 101 #if MBED_CONF_CORE_STDIO_CONVERT_NEWLINES
Christopher Haster 6547:5f2779e36035 102 static char stdio_in_prev;
Christopher Haster 6547:5f2779e36035 103 static char stdio_out_prev;
Mihail Stoyanov 6088:e1cf77a573c5 104 #endif
Christopher Haster 6548:c08cb6087b0a 105 #endif
Mihail Stoyanov 6088:e1cf77a573c5 106
Mihail Stoyanov 6088:e1cf77a573c5 107 static void init_serial() {
Mihail Stoyanov 6088:e1cf77a573c5 108 #if DEVICE_SERIAL
Mihail Stoyanov 6088:e1cf77a573c5 109 if (stdio_uart_inited) return;
Mihail Stoyanov 6088:e1cf77a573c5 110 serial_init(&stdio_uart, STDIO_UART_TX, STDIO_UART_RX);
Christopher Haster 6892:5bf317924ef4 111 #if MBED_CONF_CORE_STDIO_BAUD_RATE
Christopher Haster 6892:5bf317924ef4 112 serial_baud(&stdio_uart, MBED_CONF_CORE_STDIO_BAUD_RATE);
Christopher Haster 6892:5bf317924ef4 113 #endif
Mihail Stoyanov 6088:e1cf77a573c5 114 #endif
Mihail Stoyanov 6088:e1cf77a573c5 115 }
Mihail Stoyanov 6088:e1cf77a573c5 116
Mihail Stoyanov 6088:e1cf77a573c5 117 static inline int openmode_to_posix(int openmode) {
Mihail Stoyanov 6088:e1cf77a573c5 118 int posix = openmode;
Mihail Stoyanov 6088:e1cf77a573c5 119 #ifdef __ARMCC_VERSION
Mihail Stoyanov 6088:e1cf77a573c5 120 if (openmode & OPEN_PLUS) {
Mihail Stoyanov 6088:e1cf77a573c5 121 posix = O_RDWR;
Mihail Stoyanov 6088:e1cf77a573c5 122 } else if(openmode & OPEN_W) {
Mihail Stoyanov 6088:e1cf77a573c5 123 posix = O_WRONLY;
Mihail Stoyanov 6088:e1cf77a573c5 124 } else if(openmode & OPEN_A) {
Mihail Stoyanov 6088:e1cf77a573c5 125 posix = O_WRONLY|O_APPEND;
Mihail Stoyanov 6088:e1cf77a573c5 126 } else {
Mihail Stoyanov 6088:e1cf77a573c5 127 posix = O_RDONLY;
Mihail Stoyanov 6088:e1cf77a573c5 128 }
Mihail Stoyanov 6088:e1cf77a573c5 129 /* a, w, a+, w+ all create if file does not already exist */
Mihail Stoyanov 6088:e1cf77a573c5 130 if (openmode & (OPEN_A|OPEN_W)) {
Mihail Stoyanov 6088:e1cf77a573c5 131 posix |= O_CREAT;
Mihail Stoyanov 6088:e1cf77a573c5 132 }
Mihail Stoyanov 6088:e1cf77a573c5 133 /* w and w+ truncate */
Mihail Stoyanov 6088:e1cf77a573c5 134 if (openmode & OPEN_W) {
Mihail Stoyanov 6088:e1cf77a573c5 135 posix |= O_TRUNC;
Mihail Stoyanov 6088:e1cf77a573c5 136 }
Mihail Stoyanov 6088:e1cf77a573c5 137 #elif defined(__ICCARM__)
Mihail Stoyanov 6088:e1cf77a573c5 138 switch (openmode & _LLIO_RDWRMASK) {
Mihail Stoyanov 6088:e1cf77a573c5 139 case _LLIO_RDONLY: posix = O_RDONLY; break;
Mihail Stoyanov 6088:e1cf77a573c5 140 case _LLIO_WRONLY: posix = O_WRONLY; break;
Mihail Stoyanov 6088:e1cf77a573c5 141 case _LLIO_RDWR : posix = O_RDWR ; break;
Mihail Stoyanov 6088:e1cf77a573c5 142 }
Mihail Stoyanov 6088:e1cf77a573c5 143 if (openmode & _LLIO_CREAT ) posix |= O_CREAT;
Mihail Stoyanov 6088:e1cf77a573c5 144 if (openmode & _LLIO_APPEND) posix |= O_APPEND;
Mihail Stoyanov 6088:e1cf77a573c5 145 if (openmode & _LLIO_TRUNC ) posix |= O_TRUNC;
Mihail Stoyanov 6088:e1cf77a573c5 146 #elif defined(TOOLCHAIN_GCC)
Mihail Stoyanov 6088:e1cf77a573c5 147 posix &= ~O_BINARY;
Mihail Stoyanov 6088:e1cf77a573c5 148 #endif
Mihail Stoyanov 6088:e1cf77a573c5 149 return posix;
Mihail Stoyanov 6088:e1cf77a573c5 150 }
Mihail Stoyanov 6088:e1cf77a573c5 151
Mihail Stoyanov 6088:e1cf77a573c5 152 extern "C" FILEHANDLE PREFIX(_open)(const char* name, int openmode) {
Mihail Stoyanov 6088:e1cf77a573c5 153 #if defined(__MICROLIB) && (__ARMCC_VERSION>5030000)
Mihail Stoyanov 6088:e1cf77a573c5 154 // Before version 5.03, we were using a patched version of microlib with proper names
Mihail Stoyanov 6088:e1cf77a573c5 155 // This is the workaround that the microlib author suggested us
Mihail Stoyanov 6088:e1cf77a573c5 156 static int n = 0;
Mihail Stoyanov 6088:e1cf77a573c5 157 if (!std::strcmp(name, ":tt")) return n++;
Mihail Stoyanov 6088:e1cf77a573c5 158
Mihail Stoyanov 6088:e1cf77a573c5 159 #else
Mihail Stoyanov 6088:e1cf77a573c5 160 /* Use the posix convention that stdin,out,err are filehandles 0,1,2.
Mihail Stoyanov 6088:e1cf77a573c5 161 */
Mihail Stoyanov 6088:e1cf77a573c5 162 if (std::strcmp(name, __stdin_name) == 0) {
Mihail Stoyanov 6088:e1cf77a573c5 163 init_serial();
Mihail Stoyanov 6088:e1cf77a573c5 164 return 0;
Mihail Stoyanov 6088:e1cf77a573c5 165 } else if (std::strcmp(name, __stdout_name) == 0) {
Mihail Stoyanov 6088:e1cf77a573c5 166 init_serial();
Mihail Stoyanov 6088:e1cf77a573c5 167 return 1;
Mihail Stoyanov 6088:e1cf77a573c5 168 } else if (std::strcmp(name, __stderr_name) == 0) {
Mihail Stoyanov 6088:e1cf77a573c5 169 init_serial();
Mihail Stoyanov 6088:e1cf77a573c5 170 return 2;
Mihail Stoyanov 6088:e1cf77a573c5 171 }
Mihail Stoyanov 6088:e1cf77a573c5 172 #endif
Mihail Stoyanov 6088:e1cf77a573c5 173
Mihail Stoyanov 6088:e1cf77a573c5 174 // find the first empty slot in filehandles
Russ Butler 6984:94fc5d678e5f 175 filehandle_mutex->lock();
Mihail Stoyanov 6088:e1cf77a573c5 176 unsigned int fh_i;
Mihail Stoyanov 6088:e1cf77a573c5 177 for (fh_i = 0; fh_i < sizeof(filehandles)/sizeof(*filehandles); fh_i++) {
Mihail Stoyanov 6088:e1cf77a573c5 178 if (filehandles[fh_i] == NULL) break;
Mihail Stoyanov 6088:e1cf77a573c5 179 }
Mihail Stoyanov 6088:e1cf77a573c5 180 if (fh_i >= sizeof(filehandles)/sizeof(*filehandles)) {
Russ Butler 6984:94fc5d678e5f 181 filehandle_mutex->unlock();
Mihail Stoyanov 6088:e1cf77a573c5 182 return -1;
Mihail Stoyanov 6088:e1cf77a573c5 183 }
Russ Butler 6361:7b5bd40de905 184 filehandles[fh_i] = (FileHandle*)FILE_HANDLE_RESERVED;
Russ Butler 6984:94fc5d678e5f 185 filehandle_mutex->unlock();
Mihail Stoyanov 6088:e1cf77a573c5 186
Mihail Stoyanov 6088:e1cf77a573c5 187 FileHandle *res;
Mihail Stoyanov 6088:e1cf77a573c5 188
Mihail Stoyanov 6088:e1cf77a573c5 189 /* FILENAME: ":0x12345678" describes a FileLike* */
Mihail Stoyanov 6088:e1cf77a573c5 190 if (name[0] == ':') {
Mihail Stoyanov 6088:e1cf77a573c5 191 void *p;
Mihail Stoyanov 6088:e1cf77a573c5 192 sscanf(name, ":%p", &p);
Mihail Stoyanov 6088:e1cf77a573c5 193 res = (FileHandle*)p;
Mihail Stoyanov 6088:e1cf77a573c5 194
Mihail Stoyanov 6088:e1cf77a573c5 195 /* FILENAME: "/file_system/file_name" */
Mihail Stoyanov 6088:e1cf77a573c5 196 } else {
Mihail Stoyanov 6088:e1cf77a573c5 197 FilePath path(name);
Mihail Stoyanov 6088:e1cf77a573c5 198
Russ Butler 6361:7b5bd40de905 199 if (!path.exists()) {
Russ Butler 6361:7b5bd40de905 200 // Free file handle
Russ Butler 6361:7b5bd40de905 201 filehandles[fh_i] = NULL;
Mihail Stoyanov 6088:e1cf77a573c5 202 return -1;
Russ Butler 6361:7b5bd40de905 203 } else if (path.isFile()) {
Mihail Stoyanov 6088:e1cf77a573c5 204 res = path.file();
Mihail Stoyanov 6088:e1cf77a573c5 205 } else {
Mihail Stoyanov 6088:e1cf77a573c5 206 FileSystemLike *fs = path.fileSystem();
Russ Butler 6361:7b5bd40de905 207 if (fs == NULL) {
Russ Butler 6361:7b5bd40de905 208 // Free file handle
Russ Butler 6361:7b5bd40de905 209 filehandles[fh_i] = NULL;
Russ Butler 6361:7b5bd40de905 210 return -1;
Russ Butler 6361:7b5bd40de905 211 }
Mihail Stoyanov 6088:e1cf77a573c5 212 int posix_mode = openmode_to_posix(openmode);
Mihail Stoyanov 6088:e1cf77a573c5 213 res = fs->open(path.fileName(), posix_mode); /* NULL if fails */
Mihail Stoyanov 6088:e1cf77a573c5 214 }
Mihail Stoyanov 6088:e1cf77a573c5 215 }
Mihail Stoyanov 6088:e1cf77a573c5 216
Russ Butler 6361:7b5bd40de905 217 if (res == NULL) {
Russ Butler 6361:7b5bd40de905 218 // Free file handle
Russ Butler 6361:7b5bd40de905 219 filehandles[fh_i] = NULL;
Russ Butler 6361:7b5bd40de905 220 return -1;
Russ Butler 6361:7b5bd40de905 221 }
Mihail Stoyanov 6088:e1cf77a573c5 222 filehandles[fh_i] = res;
Mihail Stoyanov 6088:e1cf77a573c5 223
Mihail Stoyanov 6088:e1cf77a573c5 224 return fh_i + 3; // +3 as filehandles 0-2 are stdin/out/err
Mihail Stoyanov 6088:e1cf77a573c5 225 }
Mihail Stoyanov 6088:e1cf77a573c5 226
Mihail Stoyanov 6088:e1cf77a573c5 227 extern "C" int PREFIX(_close)(FILEHANDLE fh) {
Mihail Stoyanov 6088:e1cf77a573c5 228 if (fh < 3) return 0;
Mihail Stoyanov 6088:e1cf77a573c5 229
Mihail Stoyanov 6088:e1cf77a573c5 230 FileHandle* fhc = filehandles[fh-3];
Mihail Stoyanov 6088:e1cf77a573c5 231 filehandles[fh-3] = NULL;
Mihail Stoyanov 6088:e1cf77a573c5 232 if (fhc == NULL) return -1;
Mihail Stoyanov 6088:e1cf77a573c5 233
Mihail Stoyanov 6088:e1cf77a573c5 234 return fhc->close();
Mihail Stoyanov 6088:e1cf77a573c5 235 }
Mihail Stoyanov 6088:e1cf77a573c5 236
Mihail Stoyanov 6088:e1cf77a573c5 237 #if defined(__ICCARM__)
Mihail Stoyanov 6088:e1cf77a573c5 238 extern "C" size_t __write (int fh, const unsigned char *buffer, size_t length) {
Mihail Stoyanov 6088:e1cf77a573c5 239 #else
Mihail Stoyanov 6088:e1cf77a573c5 240 extern "C" int PREFIX(_write)(FILEHANDLE fh, const unsigned char *buffer, unsigned int length, int mode) {
Mihail Stoyanov 6088:e1cf77a573c5 241 #endif
Mihail Stoyanov 6088:e1cf77a573c5 242 int n; // n is the number of bytes written
Mihail Stoyanov 6088:e1cf77a573c5 243 if (fh < 3) {
Mihail Stoyanov 6088:e1cf77a573c5 244 #if DEVICE_SERIAL
Mihail Stoyanov 6088:e1cf77a573c5 245 if (!stdio_uart_inited) init_serial();
Christopher Haster 6549:723eda4f0297 246 #if MBED_CONF_CORE_STDIO_CONVERT_NEWLINES
Mihail Stoyanov 6088:e1cf77a573c5 247 for (unsigned int i = 0; i < length; i++) {
Christopher Haster 6547:5f2779e36035 248 if (buffer[i] == '\n' && stdio_out_prev != '\r') {
Christopher Haster 6546:b7f6a8e13048 249 serial_putc(&stdio_uart, '\r');
Christopher Haster 6546:b7f6a8e13048 250 }
Mihail Stoyanov 6088:e1cf77a573c5 251 serial_putc(&stdio_uart, buffer[i]);
Christopher Haster 6547:5f2779e36035 252 stdio_out_prev = buffer[i];
Mihail Stoyanov 6088:e1cf77a573c5 253 }
Christopher Haster 6548:c08cb6087b0a 254 #else
Christopher Haster 6548:c08cb6087b0a 255 for (unsigned int i = 0; i < length; i++) {
Christopher Haster 6548:c08cb6087b0a 256 serial_putc(&stdio_uart, buffer[i]);
Christopher Haster 6548:c08cb6087b0a 257 }
Christopher Haster 6548:c08cb6087b0a 258 #endif
Mihail Stoyanov 6088:e1cf77a573c5 259 #endif
Mihail Stoyanov 6088:e1cf77a573c5 260 n = length;
Mihail Stoyanov 6088:e1cf77a573c5 261 } else {
Mihail Stoyanov 6088:e1cf77a573c5 262 FileHandle* fhc = filehandles[fh-3];
Mihail Stoyanov 6088:e1cf77a573c5 263 if (fhc == NULL) return -1;
Mihail Stoyanov 6088:e1cf77a573c5 264
Mihail Stoyanov 6088:e1cf77a573c5 265 n = fhc->write(buffer, length);
Mihail Stoyanov 6088:e1cf77a573c5 266 }
Mihail Stoyanov 6088:e1cf77a573c5 267 #ifdef __ARMCC_VERSION
Mihail Stoyanov 6088:e1cf77a573c5 268 return length-n;
Mihail Stoyanov 6088:e1cf77a573c5 269 #else
Mihail Stoyanov 6088:e1cf77a573c5 270 return n;
Mihail Stoyanov 6088:e1cf77a573c5 271 #endif
Mihail Stoyanov 6088:e1cf77a573c5 272 }
Mihail Stoyanov 6088:e1cf77a573c5 273
Mihail Stoyanov 6088:e1cf77a573c5 274 #if defined(__ICCARM__)
Mihail Stoyanov 6088:e1cf77a573c5 275 extern "C" size_t __read (int fh, unsigned char *buffer, size_t length) {
Mihail Stoyanov 6088:e1cf77a573c5 276 #else
Mihail Stoyanov 6088:e1cf77a573c5 277 extern "C" int PREFIX(_read)(FILEHANDLE fh, unsigned char *buffer, unsigned int length, int mode) {
Mihail Stoyanov 6088:e1cf77a573c5 278 #endif
Mihail Stoyanov 6088:e1cf77a573c5 279 int n; // n is the number of bytes read
Mihail Stoyanov 6088:e1cf77a573c5 280 if (fh < 3) {
Mihail Stoyanov 6088:e1cf77a573c5 281 // only read a character at a time from stdin
Mihail Stoyanov 6088:e1cf77a573c5 282 #if DEVICE_SERIAL
Mihail Stoyanov 6088:e1cf77a573c5 283 if (!stdio_uart_inited) init_serial();
Christopher Haster 6549:723eda4f0297 284 #if MBED_CONF_CORE_STDIO_CONVERT_NEWLINES
Christopher Haster 6547:5f2779e36035 285 while (true) {
Christopher Haster 6547:5f2779e36035 286 char c = serial_getc(&stdio_uart);
Christopher Haster 6547:5f2779e36035 287 if ((c == '\r' && stdio_in_prev != '\n') ||
Christopher Haster 6547:5f2779e36035 288 (c == '\n' && stdio_in_prev != '\r')) {
Christopher Haster 6547:5f2779e36035 289 stdio_in_prev = c;
Christopher Haster 6547:5f2779e36035 290 *buffer = '\n';
Christopher Haster 6547:5f2779e36035 291 break;
Christopher Haster 6547:5f2779e36035 292 } else if ((c == '\r' && stdio_in_prev == '\n') ||
Christopher Haster 6547:5f2779e36035 293 (c == '\n' && stdio_in_prev == '\r')) {
Christopher Haster 6547:5f2779e36035 294 stdio_in_prev = c;
Christopher Haster 6547:5f2779e36035 295 // onto next character
Christopher Haster 6547:5f2779e36035 296 continue;
Christopher Haster 6547:5f2779e36035 297 } else {
Christopher Haster 6547:5f2779e36035 298 stdio_in_prev = c;
Christopher Haster 6547:5f2779e36035 299 *buffer = c;
Christopher Haster 6547:5f2779e36035 300 break;
Christopher Haster 6547:5f2779e36035 301 }
Christopher Haster 6547:5f2779e36035 302 }
Christopher Haster 6548:c08cb6087b0a 303 #else
Christopher Haster 6548:c08cb6087b0a 304 *buffer = serial_getc(&stdio_uart);
Christopher Haster 6548:c08cb6087b0a 305 #endif
Mihail Stoyanov 6088:e1cf77a573c5 306 #endif
Mihail Stoyanov 6088:e1cf77a573c5 307 n = 1;
Mihail Stoyanov 6088:e1cf77a573c5 308 } else {
Mihail Stoyanov 6088:e1cf77a573c5 309 FileHandle* fhc = filehandles[fh-3];
Mihail Stoyanov 6088:e1cf77a573c5 310 if (fhc == NULL) return -1;
Mihail Stoyanov 6088:e1cf77a573c5 311
Mihail Stoyanov 6088:e1cf77a573c5 312 n = fhc->read(buffer, length);
Mihail Stoyanov 6088:e1cf77a573c5 313 }
Mihail Stoyanov 6088:e1cf77a573c5 314 #ifdef __ARMCC_VERSION
Mihail Stoyanov 6088:e1cf77a573c5 315 return length-n;
Mihail Stoyanov 6088:e1cf77a573c5 316 #else
Mihail Stoyanov 6088:e1cf77a573c5 317 return n;
Mihail Stoyanov 6088:e1cf77a573c5 318 #endif
Mihail Stoyanov 6088:e1cf77a573c5 319 }
Mihail Stoyanov 6088:e1cf77a573c5 320
Mihail Stoyanov 6088:e1cf77a573c5 321 #ifdef __ARMCC_VERSION
Mihail Stoyanov 6088:e1cf77a573c5 322 extern "C" int PREFIX(_istty)(FILEHANDLE fh)
Mihail Stoyanov 6088:e1cf77a573c5 323 #else
Mihail Stoyanov 6088:e1cf77a573c5 324 extern "C" int _isatty(FILEHANDLE fh)
Mihail Stoyanov 6088:e1cf77a573c5 325 #endif
Mihail Stoyanov 6088:e1cf77a573c5 326 {
Mihail Stoyanov 6088:e1cf77a573c5 327 /* stdin, stdout and stderr should be tty */
Mihail Stoyanov 6088:e1cf77a573c5 328 if (fh < 3) return 1;
Mihail Stoyanov 6088:e1cf77a573c5 329
Mihail Stoyanov 6088:e1cf77a573c5 330 FileHandle* fhc = filehandles[fh-3];
Mihail Stoyanov 6088:e1cf77a573c5 331 if (fhc == NULL) return -1;
Mihail Stoyanov 6088:e1cf77a573c5 332
Mihail Stoyanov 6088:e1cf77a573c5 333 return fhc->isatty();
Mihail Stoyanov 6088:e1cf77a573c5 334 }
Mihail Stoyanov 6088:e1cf77a573c5 335
Mihail Stoyanov 6088:e1cf77a573c5 336 extern "C"
Mihail Stoyanov 6088:e1cf77a573c5 337 #if defined(__ARMCC_VERSION)
Mihail Stoyanov 6088:e1cf77a573c5 338 int _sys_seek(FILEHANDLE fh, long position)
Mihail Stoyanov 6088:e1cf77a573c5 339 #elif defined(__ICCARM__)
Mihail Stoyanov 6088:e1cf77a573c5 340 long __lseek(int fh, long offset, int whence)
Mihail Stoyanov 6088:e1cf77a573c5 341 #else
Mihail Stoyanov 6088:e1cf77a573c5 342 int _lseek(FILEHANDLE fh, int offset, int whence)
Mihail Stoyanov 6088:e1cf77a573c5 343 #endif
Mihail Stoyanov 6088:e1cf77a573c5 344 {
Mihail Stoyanov 6088:e1cf77a573c5 345 if (fh < 3) return 0;
Mihail Stoyanov 6088:e1cf77a573c5 346
Mihail Stoyanov 6088:e1cf77a573c5 347 FileHandle* fhc = filehandles[fh-3];
Mihail Stoyanov 6088:e1cf77a573c5 348 if (fhc == NULL) return -1;
Mihail Stoyanov 6088:e1cf77a573c5 349
Mihail Stoyanov 6088:e1cf77a573c5 350 #if defined(__ARMCC_VERSION)
Mihail Stoyanov 6088:e1cf77a573c5 351 return fhc->lseek(position, SEEK_SET);
Mihail Stoyanov 6088:e1cf77a573c5 352 #else
Mihail Stoyanov 6088:e1cf77a573c5 353 return fhc->lseek(offset, whence);
Mihail Stoyanov 6088:e1cf77a573c5 354 #endif
Mihail Stoyanov 6088:e1cf77a573c5 355 }
Mihail Stoyanov 6088:e1cf77a573c5 356
Mihail Stoyanov 6088:e1cf77a573c5 357 #ifdef __ARMCC_VERSION
Mihail Stoyanov 6088:e1cf77a573c5 358 extern "C" int PREFIX(_ensure)(FILEHANDLE fh) {
Mihail Stoyanov 6088:e1cf77a573c5 359 if (fh < 3) return 0;
Mihail Stoyanov 6088:e1cf77a573c5 360
Mihail Stoyanov 6088:e1cf77a573c5 361 FileHandle* fhc = filehandles[fh-3];
Mihail Stoyanov 6088:e1cf77a573c5 362 if (fhc == NULL) return -1;
Mihail Stoyanov 6088:e1cf77a573c5 363
Mihail Stoyanov 6088:e1cf77a573c5 364 return fhc->fsync();
Mihail Stoyanov 6088:e1cf77a573c5 365 }
Mihail Stoyanov 6088:e1cf77a573c5 366
Mihail Stoyanov 6088:e1cf77a573c5 367 extern "C" long PREFIX(_flen)(FILEHANDLE fh) {
Mihail Stoyanov 6088:e1cf77a573c5 368 if (fh < 3) return 0;
Mihail Stoyanov 6088:e1cf77a573c5 369
Mihail Stoyanov 6088:e1cf77a573c5 370 FileHandle* fhc = filehandles[fh-3];
Mihail Stoyanov 6088:e1cf77a573c5 371 if (fhc == NULL) return -1;
Mihail Stoyanov 6088:e1cf77a573c5 372
Mihail Stoyanov 6088:e1cf77a573c5 373 return fhc->flen();
Mihail Stoyanov 6088:e1cf77a573c5 374 }
Mihail Stoyanov 6088:e1cf77a573c5 375 #endif
Mihail Stoyanov 6088:e1cf77a573c5 376
Mihail Stoyanov 6088:e1cf77a573c5 377
Mihail Stoyanov 6088:e1cf77a573c5 378 #if !defined(__ARMCC_VERSION) && !defined(__ICCARM__)
Mihail Stoyanov 6088:e1cf77a573c5 379 extern "C" int _fstat(int fd, struct stat *st) {
Mihail Stoyanov 6088:e1cf77a573c5 380 if ((STDOUT_FILENO == fd) || (STDERR_FILENO == fd) || (STDIN_FILENO == fd)) {
Mihail Stoyanov 6088:e1cf77a573c5 381 st->st_mode = S_IFCHR;
Mihail Stoyanov 6088:e1cf77a573c5 382 return 0;
Mihail Stoyanov 6088:e1cf77a573c5 383 }
Mihail Stoyanov 6088:e1cf77a573c5 384
Mihail Stoyanov 6088:e1cf77a573c5 385 errno = EBADF;
Mihail Stoyanov 6088:e1cf77a573c5 386 return -1;
Mihail Stoyanov 6088:e1cf77a573c5 387 }
Mihail Stoyanov 6088:e1cf77a573c5 388 #endif
Mihail Stoyanov 6088:e1cf77a573c5 389
Mihail Stoyanov 6088:e1cf77a573c5 390 namespace std {
Mihail Stoyanov 6088:e1cf77a573c5 391 extern "C" int remove(const char *path) {
Mihail Stoyanov 6088:e1cf77a573c5 392 FilePath fp(path);
Mihail Stoyanov 6088:e1cf77a573c5 393 FileSystemLike *fs = fp.fileSystem();
Mihail Stoyanov 6088:e1cf77a573c5 394 if (fs == NULL) return -1;
Mihail Stoyanov 6088:e1cf77a573c5 395
Mihail Stoyanov 6088:e1cf77a573c5 396 return fs->remove(fp.fileName());
Mihail Stoyanov 6088:e1cf77a573c5 397 }
Mihail Stoyanov 6088:e1cf77a573c5 398
Mihail Stoyanov 6088:e1cf77a573c5 399 extern "C" int rename(const char *oldname, const char *newname) {
Mihail Stoyanov 6088:e1cf77a573c5 400 FilePath fpOld(oldname);
Mihail Stoyanov 6088:e1cf77a573c5 401 FilePath fpNew(newname);
Mihail Stoyanov 6088:e1cf77a573c5 402 FileSystemLike *fsOld = fpOld.fileSystem();
Mihail Stoyanov 6088:e1cf77a573c5 403 FileSystemLike *fsNew = fpNew.fileSystem();
Mihail Stoyanov 6088:e1cf77a573c5 404
Mihail Stoyanov 6088:e1cf77a573c5 405 /* rename only if both files are on the same FS */
Mihail Stoyanov 6088:e1cf77a573c5 406 if (fsOld != fsNew || fsOld == NULL) return -1;
Mihail Stoyanov 6088:e1cf77a573c5 407
Mihail Stoyanov 6088:e1cf77a573c5 408 return fsOld->rename(fpOld.fileName(), fpNew.fileName());
Mihail Stoyanov 6088:e1cf77a573c5 409 }
Mihail Stoyanov 6088:e1cf77a573c5 410
Mihail Stoyanov 6088:e1cf77a573c5 411 extern "C" char *tmpnam(char *s) {
Mihail Stoyanov 6088:e1cf77a573c5 412 return NULL;
Mihail Stoyanov 6088:e1cf77a573c5 413 }
Mihail Stoyanov 6088:e1cf77a573c5 414
Mihail Stoyanov 6088:e1cf77a573c5 415 extern "C" FILE *tmpfile() {
Mihail Stoyanov 6088:e1cf77a573c5 416 return NULL;
Mihail Stoyanov 6088:e1cf77a573c5 417 }
Mihail Stoyanov 6088:e1cf77a573c5 418 } // namespace std
Mihail Stoyanov 6088:e1cf77a573c5 419
Mihail Stoyanov 6088:e1cf77a573c5 420 #ifdef __ARMCC_VERSION
Mihail Stoyanov 6088:e1cf77a573c5 421 extern "C" char *_sys_command_string(char *cmd, int len) {
Mihail Stoyanov 6088:e1cf77a573c5 422 return NULL;
Mihail Stoyanov 6088:e1cf77a573c5 423 }
Mihail Stoyanov 6088:e1cf77a573c5 424 #endif
Mihail Stoyanov 6088:e1cf77a573c5 425
Mihail Stoyanov 6088:e1cf77a573c5 426 extern "C" DIR *opendir(const char *path) {
Mihail Stoyanov 6088:e1cf77a573c5 427 /* root dir is FileSystemLike */
Mihail Stoyanov 6088:e1cf77a573c5 428 if (path[0] == '/' && path[1] == 0) {
Mihail Stoyanov 6088:e1cf77a573c5 429 return FileSystemLike::opendir();
Mihail Stoyanov 6088:e1cf77a573c5 430 }
Mihail Stoyanov 6088:e1cf77a573c5 431
Mihail Stoyanov 6088:e1cf77a573c5 432 FilePath fp(path);
Mihail Stoyanov 6088:e1cf77a573c5 433 FileSystemLike* fs = fp.fileSystem();
Mihail Stoyanov 6088:e1cf77a573c5 434 if (fs == NULL) return NULL;
Mihail Stoyanov 6088:e1cf77a573c5 435
Mihail Stoyanov 6088:e1cf77a573c5 436 return fs->opendir(fp.fileName());
Mihail Stoyanov 6088:e1cf77a573c5 437 }
Mihail Stoyanov 6088:e1cf77a573c5 438
Mihail Stoyanov 6088:e1cf77a573c5 439 extern "C" struct dirent *readdir(DIR *dir) {
Mihail Stoyanov 6088:e1cf77a573c5 440 return dir->readdir();
Mihail Stoyanov 6088:e1cf77a573c5 441 }
Mihail Stoyanov 6088:e1cf77a573c5 442
Mihail Stoyanov 6088:e1cf77a573c5 443 extern "C" int closedir(DIR *dir) {
Mihail Stoyanov 6088:e1cf77a573c5 444 return dir->closedir();
Mihail Stoyanov 6088:e1cf77a573c5 445 }
Mihail Stoyanov 6088:e1cf77a573c5 446
Mihail Stoyanov 6088:e1cf77a573c5 447 extern "C" void rewinddir(DIR *dir) {
Mihail Stoyanov 6088:e1cf77a573c5 448 dir->rewinddir();
Mihail Stoyanov 6088:e1cf77a573c5 449 }
Mihail Stoyanov 6088:e1cf77a573c5 450
Mihail Stoyanov 6088:e1cf77a573c5 451 extern "C" off_t telldir(DIR *dir) {
Mihail Stoyanov 6088:e1cf77a573c5 452 return dir->telldir();
Mihail Stoyanov 6088:e1cf77a573c5 453 }
Mihail Stoyanov 6088:e1cf77a573c5 454
Mihail Stoyanov 6088:e1cf77a573c5 455 extern "C" void seekdir(DIR *dir, off_t off) {
Mihail Stoyanov 6088:e1cf77a573c5 456 dir->seekdir(off);
Mihail Stoyanov 6088:e1cf77a573c5 457 }
Mihail Stoyanov 6088:e1cf77a573c5 458
Mihail Stoyanov 6088:e1cf77a573c5 459 extern "C" int mkdir(const char *path, mode_t mode) {
Mihail Stoyanov 6088:e1cf77a573c5 460 FilePath fp(path);
Mihail Stoyanov 6088:e1cf77a573c5 461 FileSystemLike *fs = fp.fileSystem();
Mihail Stoyanov 6088:e1cf77a573c5 462 if (fs == NULL) return -1;
Mihail Stoyanov 6088:e1cf77a573c5 463
Mihail Stoyanov 6088:e1cf77a573c5 464 return fs->mkdir(fp.fileName(), mode);
Mihail Stoyanov 6088:e1cf77a573c5 465 }
Mihail Stoyanov 6088:e1cf77a573c5 466
Mihail Stoyanov 6088:e1cf77a573c5 467 #if defined(TOOLCHAIN_GCC)
Mihail Stoyanov 6088:e1cf77a573c5 468 /* prevents the exception handling name demangling code getting pulled in */
Mihail Stoyanov 6088:e1cf77a573c5 469 #include "mbed_error.h"
Mihail Stoyanov 6088:e1cf77a573c5 470 namespace __gnu_cxx {
Mihail Stoyanov 6088:e1cf77a573c5 471 void __verbose_terminate_handler() {
Mihail Stoyanov 6088:e1cf77a573c5 472 error("Exception");
Mihail Stoyanov 6088:e1cf77a573c5 473 }
Mihail Stoyanov 6088:e1cf77a573c5 474 }
Mihail Stoyanov 6088:e1cf77a573c5 475 extern "C" WEAK void __cxa_pure_virtual(void);
Mihail Stoyanov 6088:e1cf77a573c5 476 extern "C" WEAK void __cxa_pure_virtual(void) {
Mihail Stoyanov 6088:e1cf77a573c5 477 exit(1);
Mihail Stoyanov 6088:e1cf77a573c5 478 }
Mihail Stoyanov 6088:e1cf77a573c5 479
Mihail Stoyanov 6088:e1cf77a573c5 480 #endif
Mihail Stoyanov 6088:e1cf77a573c5 481
Jaeden Amero 6335:6fbbee1c9fd1 482 #if defined(TOOLCHAIN_GCC)
Niklas Hauser 7539:b568b913d7a4 483 /* uVisor wraps malloc_r, realloc_r and free_r, but not calloc_r! */
Niklas Hauser 6337:760e146953ef 484 #ifndef FEATURE_UVISOR
Russ Butler 7514:a0c71f3f3d2f 485
Niklas Hauser 7539:b568b913d7a4 486
Niklas Hauser 7539:b568b913d7a4 487 #endif/* FEATURE_UVISOR */
Niklas Hauser 7539:b568b913d7a4 488
Niklas Hauser 6337:760e146953ef 489
Jaeden Amero 6335:6fbbee1c9fd1 490 extern "C" WEAK void software_init_hook_rtos(void)
Jaeden Amero 6335:6fbbee1c9fd1 491 {
Jaeden Amero 6335:6fbbee1c9fd1 492 // Do nothing by default.
Jaeden Amero 6335:6fbbee1c9fd1 493 }
Jaeden Amero 6335:6fbbee1c9fd1 494
Jaeden Amero 6335:6fbbee1c9fd1 495 extern "C" void software_init_hook(void)
Jaeden Amero 6335:6fbbee1c9fd1 496 {
Jaeden Amero 6336:a0ee59c4aa27 497 #ifdef FEATURE_UVISOR
Jaeden Amero 6336:a0ee59c4aa27 498 int return_code;
Jaeden Amero 6336:a0ee59c4aa27 499
Jaeden Amero 6336:a0ee59c4aa27 500 return_code = uvisor_lib_init();
Jaeden Amero 6336:a0ee59c4aa27 501 if (return_code) {
Jaeden Amero 6336:a0ee59c4aa27 502 mbed_die();
Jaeden Amero 6336:a0ee59c4aa27 503 }
Jaeden Amero 6336:a0ee59c4aa27 504 #endif/* FEATURE_UVISOR */
Jaeden Amero 6336:a0ee59c4aa27 505
Jaeden Amero 6335:6fbbee1c9fd1 506 software_init_hook_rtos();
Jaeden Amero 6335:6fbbee1c9fd1 507 }
Jaeden Amero 6335:6fbbee1c9fd1 508 #endif
Jaeden Amero 6335:6fbbee1c9fd1 509
Mihail Stoyanov 6088:e1cf77a573c5 510 // ****************************************************************************
Mihail Stoyanov 6088:e1cf77a573c5 511 // mbed_main is a function that is called before main()
Mihail Stoyanov 6088:e1cf77a573c5 512 // mbed_sdk_init() is also a function that is called before main(), but unlike
Mihail Stoyanov 6088:e1cf77a573c5 513 // mbed_main(), it is not meant for user code, but for the SDK itself to perform
Mihail Stoyanov 6088:e1cf77a573c5 514 // initializations before main() is called.
Mihail Stoyanov 6088:e1cf77a573c5 515
Mihail Stoyanov 6088:e1cf77a573c5 516 extern "C" WEAK void mbed_main(void);
Mihail Stoyanov 6088:e1cf77a573c5 517 extern "C" WEAK void mbed_main(void) {
Mihail Stoyanov 6088:e1cf77a573c5 518 }
Mihail Stoyanov 6088:e1cf77a573c5 519
Mihail Stoyanov 6088:e1cf77a573c5 520 extern "C" WEAK void mbed_sdk_init(void);
Mihail Stoyanov 6088:e1cf77a573c5 521 extern "C" WEAK void mbed_sdk_init(void) {
Mihail Stoyanov 6088:e1cf77a573c5 522 }
Mihail Stoyanov 6088:e1cf77a573c5 523
Mihail Stoyanov 6088:e1cf77a573c5 524 #if defined(TOOLCHAIN_ARM)
Mihail Stoyanov 6088:e1cf77a573c5 525 extern "C" int $Super$$main(void);
Mihail Stoyanov 6088:e1cf77a573c5 526
Mihail Stoyanov 6088:e1cf77a573c5 527 extern "C" int $Sub$$main(void) {
Mihail Stoyanov 6088:e1cf77a573c5 528 mbed_sdk_init();
Mihail Stoyanov 6088:e1cf77a573c5 529 mbed_main();
Mihail Stoyanov 6088:e1cf77a573c5 530 return $Super$$main();
Mihail Stoyanov 6088:e1cf77a573c5 531 }
Mihail Stoyanov 6088:e1cf77a573c5 532 #elif defined(TOOLCHAIN_GCC)
Mihail Stoyanov 6088:e1cf77a573c5 533 extern "C" int __real_main(void);
Mihail Stoyanov 6088:e1cf77a573c5 534
Mihail Stoyanov 6088:e1cf77a573c5 535 extern "C" int __wrap_main(void) {
Mihail Stoyanov 6088:e1cf77a573c5 536 mbed_sdk_init();
Mihail Stoyanov 6088:e1cf77a573c5 537 mbed_main();
Mihail Stoyanov 6088:e1cf77a573c5 538 return __real_main();
Mihail Stoyanov 6088:e1cf77a573c5 539 }
Mihail Stoyanov 6088:e1cf77a573c5 540 #elif defined(TOOLCHAIN_IAR)
Mihail Stoyanov 6088:e1cf77a573c5 541 // IAR doesn't have the $Super/$Sub mechanism of armcc, nor something equivalent
Mihail Stoyanov 6088:e1cf77a573c5 542 // to ld's --wrap. It does have a --redirect, but that doesn't help, since redirecting
Mihail Stoyanov 6088:e1cf77a573c5 543 // 'main' to another symbol looses the original 'main' symbol. However, its startup
Mihail Stoyanov 6088:e1cf77a573c5 544 // code will call a function to setup argc and argv (__iar_argc_argv) if it is defined.
Mihail Stoyanov 6088:e1cf77a573c5 545 // Since mbed doesn't use argc/argv, we use this function to call our mbed_main.
Mihail Stoyanov 6088:e1cf77a573c5 546 extern "C" void __iar_argc_argv() {
Mihail Stoyanov 6088:e1cf77a573c5 547 mbed_main();
Mihail Stoyanov 6088:e1cf77a573c5 548 }
Mihail Stoyanov 6088:e1cf77a573c5 549 #endif
Mihail Stoyanov 6088:e1cf77a573c5 550
Mihail Stoyanov 6088:e1cf77a573c5 551 // Provide implementation of _sbrk (low-level dynamic memory allocation
Mihail Stoyanov 6088:e1cf77a573c5 552 // routine) for GCC_ARM which compares new heap pointer with MSP instead of
Mihail Stoyanov 6088:e1cf77a573c5 553 // SP. This make it compatible with RTX RTOS thread stacks.
Toyomasa Watarai 7575:67b11b21d959 554 #if defined(TOOLCHAIN_GCC_ARM) || defined(TOOLCHAIN_GCC_CR)
Mihail Stoyanov 6088:e1cf77a573c5 555 // Linker defined symbol used by _sbrk to indicate where heap should start.
Mihail Stoyanov 6088:e1cf77a573c5 556 extern "C" int __end__;
Mihail Stoyanov 6088:e1cf77a573c5 557
Mihail Stoyanov 6088:e1cf77a573c5 558 #if defined(TARGET_CORTEX_A)
Mihail Stoyanov 6088:e1cf77a573c5 559 extern "C" uint32_t __HeapLimit;
Mihail Stoyanov 6088:e1cf77a573c5 560 #endif
Mihail Stoyanov 6088:e1cf77a573c5 561
Mihail Stoyanov 6088:e1cf77a573c5 562 // Turn off the errno macro and use actual global variable instead.
Mihail Stoyanov 6088:e1cf77a573c5 563 #undef errno
Mihail Stoyanov 6088:e1cf77a573c5 564 extern "C" int errno;
Mihail Stoyanov 6088:e1cf77a573c5 565
Mihail Stoyanov 6088:e1cf77a573c5 566 // For ARM7 only
Mihail Stoyanov 6088:e1cf77a573c5 567 register unsigned char * stack_ptr __asm ("sp");
Mihail Stoyanov 6088:e1cf77a573c5 568
Mihail Stoyanov 6088:e1cf77a573c5 569 // Dynamic memory allocation related syscall.
ccli8 7328:33c1e9a22f71 570 #if defined(TARGET_NUMAKER_PFM_NUC472)
ccli8 7328:33c1e9a22f71 571 // Overwrite _sbrk() to support two region model.
ccli8 7328:33c1e9a22f71 572 extern "C" void *__wrap__sbrk(int incr);
ccli8 7328:33c1e9a22f71 573 extern "C" caddr_t _sbrk(int incr) {
ccli8 7328:33c1e9a22f71 574 return (caddr_t) __wrap__sbrk(incr);
ccli8 7328:33c1e9a22f71 575 }
ccli8 7328:33c1e9a22f71 576 #else
Mihail Stoyanov 6088:e1cf77a573c5 577 extern "C" caddr_t _sbrk(int incr) {
Mihail Stoyanov 6088:e1cf77a573c5 578 static unsigned char* heap = (unsigned char*)&__end__;
Mihail Stoyanov 6088:e1cf77a573c5 579 unsigned char* prev_heap = heap;
Mihail Stoyanov 6088:e1cf77a573c5 580 unsigned char* new_heap = heap + incr;
Mihail Stoyanov 6088:e1cf77a573c5 581
Mihail Stoyanov 6088:e1cf77a573c5 582 #if defined(TARGET_ARM7)
Mihail Stoyanov 6088:e1cf77a573c5 583 if (new_heap >= stack_ptr) {
Mihail Stoyanov 6088:e1cf77a573c5 584 #elif defined(TARGET_CORTEX_A)
Mihail Stoyanov 6088:e1cf77a573c5 585 if (new_heap >= (unsigned char*)&__HeapLimit) { /* __HeapLimit is end of heap section */
Mihail Stoyanov 6088:e1cf77a573c5 586 #else
Mihail Stoyanov 6088:e1cf77a573c5 587 if (new_heap >= (unsigned char*)__get_MSP()) {
Mihail Stoyanov 6088:e1cf77a573c5 588 #endif
Mihail Stoyanov 6088:e1cf77a573c5 589 errno = ENOMEM;
Mihail Stoyanov 6088:e1cf77a573c5 590 return (caddr_t)-1;
Mihail Stoyanov 6088:e1cf77a573c5 591 }
Mihail Stoyanov 6088:e1cf77a573c5 592
Russ Butler 7395:79e8c79e165c 593 // Additional heap checking if set
Russ Butler 7395:79e8c79e165c 594 if (mbed_heap_size && (new_heap >= mbed_heap_start + mbed_heap_size)) {
Russ Butler 7395:79e8c79e165c 595 errno = ENOMEM;
Russ Butler 7395:79e8c79e165c 596 return (caddr_t)-1;
Russ Butler 7395:79e8c79e165c 597 }
Russ Butler 7395:79e8c79e165c 598
Mihail Stoyanov 6088:e1cf77a573c5 599 heap = new_heap;
Mihail Stoyanov 6088:e1cf77a573c5 600 return (caddr_t) prev_heap;
Mihail Stoyanov 6088:e1cf77a573c5 601 }
Mihail Stoyanov 6088:e1cf77a573c5 602 #endif
ccli8 7328:33c1e9a22f71 603 #endif
Mihail Stoyanov 6088:e1cf77a573c5 604
Toyomasa Watarai 7575:67b11b21d959 605 #if defined(TOOLCHAIN_GCC_ARM) || defined(TOOLCHAIN_GCC_CR)
Mihail Stoyanov 6088:e1cf77a573c5 606 extern "C" void _exit(int return_code) {
Mihail Stoyanov 6088:e1cf77a573c5 607 #else
Mihail Stoyanov 6088:e1cf77a573c5 608 namespace std {
Mihail Stoyanov 6088:e1cf77a573c5 609 extern "C" void exit(int return_code) {
Mihail Stoyanov 6088:e1cf77a573c5 610 #endif
Mihail Stoyanov 6088:e1cf77a573c5 611
Mihail Stoyanov 6088:e1cf77a573c5 612 #if DEVICE_STDIO_MESSAGES
Mihail Stoyanov 6088:e1cf77a573c5 613 fflush(stdout);
Mihail Stoyanov 6088:e1cf77a573c5 614 fflush(stderr);
Mihail Stoyanov 6088:e1cf77a573c5 615 #endif
Mihail Stoyanov 6088:e1cf77a573c5 616
Mihail Stoyanov 6088:e1cf77a573c5 617 #if DEVICE_SEMIHOST
Mihail Stoyanov 6088:e1cf77a573c5 618 if (mbed_interface_connected()) {
Mihail Stoyanov 6088:e1cf77a573c5 619 semihost_exit();
Mihail Stoyanov 6088:e1cf77a573c5 620 }
Mihail Stoyanov 6088:e1cf77a573c5 621 #endif
Mihail Stoyanov 6088:e1cf77a573c5 622 if (return_code) {
Mihail Stoyanov 6088:e1cf77a573c5 623 mbed_die();
Mihail Stoyanov 6088:e1cf77a573c5 624 }
Mihail Stoyanov 6088:e1cf77a573c5 625
Mihail Stoyanov 6088:e1cf77a573c5 626 while (1);
Mihail Stoyanov 6088:e1cf77a573c5 627 }
Mihail Stoyanov 6088:e1cf77a573c5 628
Toyomasa Watarai 7575:67b11b21d959 629 #if !defined(TOOLCHAIN_GCC_ARM) && !defined(TOOLCHAIN_GCC_CR)
Mihail Stoyanov 6088:e1cf77a573c5 630 } //namespace std
Mihail Stoyanov 6088:e1cf77a573c5 631 #endif
Mihail Stoyanov 6088:e1cf77a573c5 632
Mihail Stoyanov 6088:e1cf77a573c5 633
Mihail Stoyanov 6088:e1cf77a573c5 634 namespace mbed {
Mihail Stoyanov 6088:e1cf77a573c5 635
Mihail Stoyanov 6088:e1cf77a573c5 636 void mbed_set_unbuffered_stream(FILE *_file) {
Mihail Stoyanov 6088:e1cf77a573c5 637 #if defined (__ICCARM__)
Mihail Stoyanov 6088:e1cf77a573c5 638 char buf[2];
Mihail Stoyanov 6088:e1cf77a573c5 639 std::setvbuf(_file,buf,_IONBF,NULL);
Mihail Stoyanov 6088:e1cf77a573c5 640 #else
Mihail Stoyanov 6088:e1cf77a573c5 641 setbuf(_file, NULL);
Mihail Stoyanov 6088:e1cf77a573c5 642 #endif
Mihail Stoyanov 6088:e1cf77a573c5 643 }
Mihail Stoyanov 6088:e1cf77a573c5 644
Mihail Stoyanov 6088:e1cf77a573c5 645 int mbed_getc(FILE *_file){
Mihail Stoyanov 6088:e1cf77a573c5 646 #if defined (__ICCARM__)
Mihail Stoyanov 6088:e1cf77a573c5 647 /*This is only valid for unbuffered streams*/
Mihail Stoyanov 6088:e1cf77a573c5 648 int res = std::fgetc(_file);
Mihail Stoyanov 6088:e1cf77a573c5 649 if (res>=0){
Mihail Stoyanov 6088:e1cf77a573c5 650 _file->_Mode = (unsigned short)(_file->_Mode & ~ 0x1000);/* Unset read mode */
Mihail Stoyanov 6088:e1cf77a573c5 651 _file->_Rend = _file->_Wend;
Mihail Stoyanov 6088:e1cf77a573c5 652 _file->_Next = _file->_Wend;
Mihail Stoyanov 6088:e1cf77a573c5 653 }
Mihail Stoyanov 6088:e1cf77a573c5 654 return res;
Mihail Stoyanov 6088:e1cf77a573c5 655 #else
Mihail Stoyanov 6088:e1cf77a573c5 656 return std::fgetc(_file);
Mihail Stoyanov 6088:e1cf77a573c5 657 #endif
Mihail Stoyanov 6088:e1cf77a573c5 658 }
Mihail Stoyanov 6088:e1cf77a573c5 659
Mihail Stoyanov 6088:e1cf77a573c5 660 char* mbed_gets(char*s, int size, FILE *_file){
Mihail Stoyanov 6088:e1cf77a573c5 661 #if defined (__ICCARM__)
Mihail Stoyanov 6088:e1cf77a573c5 662 /*This is only valid for unbuffered streams*/
Mihail Stoyanov 6088:e1cf77a573c5 663 char *str = fgets(s,size,_file);
Mihail Stoyanov 6088:e1cf77a573c5 664 if (str!=NULL){
Mihail Stoyanov 6088:e1cf77a573c5 665 _file->_Mode = (unsigned short)(_file->_Mode & ~ 0x1000);/* Unset read mode */
Mihail Stoyanov 6088:e1cf77a573c5 666 _file->_Rend = _file->_Wend;
Mihail Stoyanov 6088:e1cf77a573c5 667 _file->_Next = _file->_Wend;
Mihail Stoyanov 6088:e1cf77a573c5 668 }
Mihail Stoyanov 6088:e1cf77a573c5 669 return str;
Mihail Stoyanov 6088:e1cf77a573c5 670 #else
Mihail Stoyanov 6088:e1cf77a573c5 671 return std::fgets(s,size,_file);
Mihail Stoyanov 6088:e1cf77a573c5 672 #endif
Mihail Stoyanov 6088:e1cf77a573c5 673 }
Mihail Stoyanov 6088:e1cf77a573c5 674
Russ Butler 7514:a0c71f3f3d2f 675 } // namespace mbed
Russ Butler 7514:a0c71f3f3d2f 676
Russ Butler 6200:8000bcdea61d 677 #if defined (__ICCARM__)
Russ Butler 6200:8000bcdea61d 678 // Stub out locks when an rtos is not present
Russ Butler 6200:8000bcdea61d 679 extern "C" WEAK void __iar_system_Mtxinit(__iar_Rmtx *mutex) {}
Russ Butler 6200:8000bcdea61d 680 extern "C" WEAK void __iar_system_Mtxdst(__iar_Rmtx *mutex) {}
Russ Butler 6200:8000bcdea61d 681 extern "C" WEAK void __iar_system_Mtxlock(__iar_Rmtx *mutex) {}
Russ Butler 6200:8000bcdea61d 682 extern "C" WEAK void __iar_system_Mtxunlock(__iar_Rmtx *mutex) {}
Russ Butler 6200:8000bcdea61d 683 extern "C" WEAK void __iar_file_Mtxinit(__iar_Rmtx *mutex) {}
Russ Butler 6200:8000bcdea61d 684 extern "C" WEAK void __iar_file_Mtxdst(__iar_Rmtx *mutex) {}
Russ Butler 6200:8000bcdea61d 685 extern "C" WEAK void __iar_file_Mtxlock(__iar_Rmtx *mutex) {}
Russ Butler 6200:8000bcdea61d 686 extern "C" WEAK void __iar_file_Mtxunlock(__iar_Rmtx *mutex) {}
Russ Butler 6387:1e339dc397e1 687 #elif defined(__CC_ARM)
Russ Butler 6387:1e339dc397e1 688 // Do nothing
Russ Butler 6387:1e339dc397e1 689 #elif defined (__GNUC__)
Russ Butler 6387:1e339dc397e1 690 struct _reent;
Russ Butler 6387:1e339dc397e1 691 // Stub out locks when an rtos is not present
Russ Butler 6387:1e339dc397e1 692 extern "C" WEAK void __rtos_malloc_lock( struct _reent *_r ) {}
Russ Butler 6387:1e339dc397e1 693 extern "C" WEAK void __rtos_malloc_unlock( struct _reent *_r ) {}
Russ Butler 6387:1e339dc397e1 694 extern "C" WEAK void __rtos_env_lock( struct _reent *_r ) {}
Russ Butler 6387:1e339dc397e1 695 extern "C" WEAK void __rtos_env_unlock( struct _reent *_r ) {}
Russ Butler 6387:1e339dc397e1 696
Russ Butler 6396:723dcc4c67dd 697 extern "C" void __malloc_lock( struct _reent *_r )
Russ Butler 6387:1e339dc397e1 698 {
Russ Butler 6387:1e339dc397e1 699 __rtos_malloc_lock(_r);
Russ Butler 6387:1e339dc397e1 700 }
Russ Butler 6387:1e339dc397e1 701
Russ Butler 6396:723dcc4c67dd 702 extern "C" void __malloc_unlock( struct _reent *_r )
Russ Butler 6387:1e339dc397e1 703 {
Russ Butler 6387:1e339dc397e1 704 __rtos_malloc_unlock(_r);
Russ Butler 6387:1e339dc397e1 705 }
Russ Butler 6387:1e339dc397e1 706
Russ Butler 6396:723dcc4c67dd 707 extern "C" void __env_lock( struct _reent *_r )
Russ Butler 6387:1e339dc397e1 708 {
Russ Butler 6387:1e339dc397e1 709 __rtos_env_lock(_r);
Russ Butler 6387:1e339dc397e1 710 }
Russ Butler 6387:1e339dc397e1 711
Russ Butler 6396:723dcc4c67dd 712 extern "C" void __env_unlock( struct _reent *_r )
Russ Butler 6387:1e339dc397e1 713 {
Russ Butler 6387:1e339dc397e1 714 __rtos_env_unlock(_r);
Russ Butler 6387:1e339dc397e1 715 }
Russ Butler 7720:7391e7e92fda 716
Russ Butler 7720:7391e7e92fda 717 #define CXA_GUARD_INIT_DONE (1 << 0)
Russ Butler 7720:7391e7e92fda 718 #define CXA_GUARD_INIT_IN_PROGRESS (1 << 1)
Russ Butler 7720:7391e7e92fda 719 #define CXA_GUARD_MASK (CXA_GUARD_INIT_DONE | CXA_GUARD_INIT_IN_PROGRESS)
Russ Butler 7720:7391e7e92fda 720
Russ Butler 7720:7391e7e92fda 721 extern "C" int __cxa_guard_acquire(int *guard_object_p)
Russ Butler 7720:7391e7e92fda 722 {
Russ Butler 7720:7391e7e92fda 723 uint8_t *guard_object = (uint8_t *)guard_object_p;
Russ Butler 7720:7391e7e92fda 724 if (CXA_GUARD_INIT_DONE == (*guard_object & CXA_GUARD_MASK)) {
Russ Butler 7720:7391e7e92fda 725 return 0;
Russ Butler 7720:7391e7e92fda 726 }
Russ Butler 7720:7391e7e92fda 727 singleton_lock();
Russ Butler 7720:7391e7e92fda 728 if (CXA_GUARD_INIT_DONE == (*guard_object & CXA_GUARD_MASK)) {
Russ Butler 7720:7391e7e92fda 729 singleton_unlock();
Russ Butler 7720:7391e7e92fda 730 return 0;
Russ Butler 7720:7391e7e92fda 731 }
Russ Butler 7720:7391e7e92fda 732 MBED_ASSERT(0 == (*guard_object & CXA_GUARD_MASK));
Russ Butler 7720:7391e7e92fda 733 *guard_object = *guard_object | CXA_GUARD_INIT_IN_PROGRESS;
Russ Butler 7720:7391e7e92fda 734 return 1;
Russ Butler 7720:7391e7e92fda 735 }
Russ Butler 7720:7391e7e92fda 736
Russ Butler 7720:7391e7e92fda 737 extern "C" void __cxa_guard_release(int *guard_object_p)
Russ Butler 7720:7391e7e92fda 738 {
Russ Butler 7720:7391e7e92fda 739 uint8_t *guard_object = (uint8_t *)guard_object_p;
Russ Butler 7720:7391e7e92fda 740 MBED_ASSERT(CXA_GUARD_INIT_IN_PROGRESS == (*guard_object & CXA_GUARD_MASK));
Russ Butler 7720:7391e7e92fda 741 *guard_object = (*guard_object & ~CXA_GUARD_MASK) | CXA_GUARD_INIT_DONE;
Russ Butler 7720:7391e7e92fda 742 singleton_unlock();
Russ Butler 7720:7391e7e92fda 743 }
Russ Butler 7720:7391e7e92fda 744
Russ Butler 7720:7391e7e92fda 745 extern "C" void __cxa_guard_abort(int *guard_object_p)
Russ Butler 7720:7391e7e92fda 746 {
Russ Butler 7720:7391e7e92fda 747 uint8_t *guard_object = (uint8_t *)guard_object_p;
Russ Butler 7720:7391e7e92fda 748 MBED_ASSERT(CXA_GUARD_INIT_IN_PROGRESS == (*guard_object & CXA_GUARD_MASK));
Russ Butler 7720:7391e7e92fda 749 *guard_object = *guard_object & ~CXA_GUARD_INIT_IN_PROGRESS;
Russ Butler 7720:7391e7e92fda 750 singleton_unlock();
Russ Butler 7720:7391e7e92fda 751 }
Russ Butler 7720:7391e7e92fda 752
Russ Butler 6200:8000bcdea61d 753 #endif
Russ Butler 6200:8000bcdea61d 754
Russ Butler 7397:7448008aec84 755 void *operator new(std::size_t count)
Russ Butler 7397:7448008aec84 756 {
Russ Butler 7397:7448008aec84 757 void *buffer = malloc(count);
Russ Butler 7397:7448008aec84 758 if (NULL == buffer) {
Russ Butler 7397:7448008aec84 759 error("Operator new out of memory\r\n");
Russ Butler 7397:7448008aec84 760 }
Russ Butler 7397:7448008aec84 761 return buffer;
Russ Butler 7397:7448008aec84 762 }
Russ Butler 7397:7448008aec84 763
Russ Butler 7397:7448008aec84 764 void *operator new[](std::size_t count)
Russ Butler 7397:7448008aec84 765 {
Russ Butler 7397:7448008aec84 766 void *buffer = malloc(count);
Russ Butler 7397:7448008aec84 767 if (NULL == buffer) {
Russ Butler 7397:7448008aec84 768 error("Operator new[] out of memory\r\n");
Russ Butler 7397:7448008aec84 769 }
Russ Butler 7397:7448008aec84 770 return buffer;
Russ Butler 7397:7448008aec84 771 }
Russ Butler 7397:7448008aec84 772
Russ Butler 7397:7448008aec84 773 void operator delete(void *ptr)
Russ Butler 7397:7448008aec84 774 {
Russ Butler 7397:7448008aec84 775 if (ptr != NULL) {
Russ Butler 7397:7448008aec84 776 free(ptr);
Russ Butler 7397:7448008aec84 777 }
Russ Butler 7397:7448008aec84 778 }
Russ Butler 7397:7448008aec84 779 void operator delete[](void *ptr)
Russ Butler 7397:7448008aec84 780 {
Russ Butler 7397:7448008aec84 781 if (ptr != NULL) {
Russ Butler 7397:7448008aec84 782 free(ptr);
Russ Butler 7397:7448008aec84 783 }
Russ Butler 7397:7448008aec84 784 }