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mbed_retarget.h
00001 /* 00002 * mbed Microcontroller Library 00003 * Copyright (c) 2006-2016 ARM Limited 00004 * 00005 * Licensed under the Apache License, Version 2.0 (the "License"); 00006 * you may not use this file except in compliance with the License. 00007 * You may obtain a copy of the License at 00008 * 00009 * http://www.apache.org/licenses/LICENSE-2.0 00010 * 00011 * Unless required by applicable law or agreed to in writing, software 00012 * distributed under the License is distributed on an "AS IS" BASIS, 00013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00014 * See the License for the specific language governing permissions and 00015 * limitations under the License. 00016 * 00017 */ 00018 00019 #ifndef RETARGET_H 00020 #define RETARGET_H 00021 00022 #include <stdint.h> 00023 #include <stddef.h> 00024 00025 /* We can get the following standard types from sys/types for gcc, but we 00026 * need to define the types ourselves for the other compilers that normally 00027 * target embedded systems */ 00028 #if defined(__ARMCC_VERSION) || defined(__ICCARM__) 00029 typedef int ssize_t; ///< Signed size type, usually encodes negative errors 00030 typedef long off_t; ///< Offset in a data stream 00031 typedef int mode_t; ///< Mode for opening files 00032 00033 #define O_RDONLY 0 00034 #define O_WRONLY 1 00035 #define O_RDWR 2 00036 #define O_CREAT 0x0200 00037 #define O_TRUNC 0x0400 00038 #define O_APPEND 0x0008 00039 00040 #define NAME_MAX 255 ///< Maximum size of a name in a file path 00041 00042 #else 00043 #include <sys/fcntl.h> 00044 #include <sys/types.h> 00045 #include <sys/syslimits.h> 00046 #endif 00047 00048 00049 /* DIR declarations must also be here */ 00050 #if __cplusplus 00051 namespace mbed { class Dir; } 00052 typedef mbed::Dir DIR; 00053 #else 00054 typedef struct Dir DIR; 00055 #endif 00056 00057 #if __cplusplus 00058 extern "C" { 00059 #endif 00060 DIR *opendir(const char*); 00061 struct dirent *readdir(DIR *); 00062 int closedir(DIR*); 00063 void rewinddir(DIR*); 00064 long telldir(DIR*); 00065 void seekdir(DIR*, long); 00066 int mkdir(const char *name, mode_t n); 00067 #if __cplusplus 00068 }; 00069 #endif 00070 00071 00072 #if defined(__ARMCC_VERSION) || defined(__ICCARM__) 00073 /* The intent of this section is to unify the errno error values to match 00074 * the POSIX definitions for the GCC_ARM, ARMCC and IAR compilers. This is 00075 * necessary because the ARMCC/IAR errno.h, or sys/stat.h are missing some 00076 * symbol definitions used by the POSIX filesystem API to return errno codes. 00077 * Note also that ARMCC errno.h defines some symbol values differently from 00078 * the GCC_ARM/IAR/standard POSIX definitions. The definitions guard against 00079 * this and future changes by changing the symbol definition as shown below. */ 00080 #ifdef ENOENT 00081 #undef ENOENT 00082 #endif 00083 #define ENOENT 2 /* No such file or directory. */ 00084 00085 #ifdef EIO 00086 #undef EIO 00087 #endif 00088 #define EIO 5 /* I/O error */ 00089 00090 #ifdef ENXIO 00091 #undef ENXIO 00092 #endif 00093 #define ENXIO 6 /* No such device or address */ 00094 00095 #ifdef ENOEXEC 00096 #undef ENOEXEC 00097 #endif 00098 #define ENOEXEC 8 /* Exec format error */ 00099 00100 #ifdef EBADF 00101 #undef EBADF 00102 #endif 00103 #define EBADF 9 /* Bad file number */ 00104 00105 #ifdef ENOMEM 00106 #undef ENOMEM 00107 #endif 00108 #define ENOMEM 12 /* Not enough space */ 00109 00110 #ifdef EACCES 00111 #undef EACCES 00112 #endif 00113 #define EACCES 13 /* Permission denied */ 00114 00115 #ifdef EFAULT 00116 #undef EFAULT 00117 #endif 00118 #define EFAULT 14 /* Bad address */ 00119 00120 #ifdef EEXIST 00121 #undef EEXIST 00122 #endif 00123 #define EEXIST 17 /* File exists */ 00124 00125 #ifdef EINVAL 00126 #undef EINVAL 00127 #endif 00128 #define EINVAL 22 /* Invalid argument */ 00129 00130 #ifdef ENFILE 00131 #undef ENFILE 00132 #endif 00133 #define ENFILE 23 /* Too many open files in system */ 00134 00135 #ifdef EMFILE 00136 #undef EMFILE 00137 #endif 00138 #define EMFILE 24 /* File descriptor value too large */ 00139 00140 #ifdef ENOSYS 00141 #undef ENOSYS 00142 #endif 00143 #define ENOSYS 38 /* Function not implemented */ 00144 00145 /* Missing stat.h defines. 00146 * The following are sys/stat.h definitions not currently present in the ARMCC 00147 * errno.h. Note, ARMCC errno.h defines some symbol values differing from 00148 * GCC_ARM/IAR/standard POSIX definitions. Guard against this and future 00149 * changes by changing the symbol definition for filesystem use. */ 00150 #define _IFDIR 0040000 /* directory */ 00151 #define _IFREG 0100000 /* regular */ 00152 00153 #define S_IFDIR _IFDIR 00154 #define S_IFREG _IFREG 00155 00156 #define S_IRWXU (S_IRUSR | S_IWUSR | S_IXUSR) 00157 #define S_IRUSR 0000400 /* read permission, owner */ 00158 #define S_IWUSR 0000200 /* write permission, owner */ 00159 #define S_IXUSR 0000100/* execute/search permission, owner */ 00160 #define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP) 00161 #define S_IRGRP 0000040 /* read permission, group */ 00162 #define S_IWGRP 0000020 /* write permission, grougroup */ 00163 #define S_IXGRP 0000010/* execute/search permission, group */ 00164 #define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH) 00165 #define S_IROTH 0000004 /* read permission, other */ 00166 #define S_IWOTH 0000002 /* write permission, other */ 00167 #define S_IXOTH 0000001/* execute/search permission, other */ 00168 00169 #endif /* defined(__ARMCC_VERSION) || defined(__ICCARM__) */ 00170 00171 00172 /* The following are dirent.h definitions are declared here to garuntee 00173 * consistency where structure may be different with different toolchains */ 00174 struct dirent { 00175 char d_name[NAME_MAX+1]; 00176 uint8_t d_type; 00177 }; 00178 00179 enum { 00180 DT_UNKNOWN, // The file type could not be determined. 00181 DT_FIFO, // This is a named pipe (FIFO). 00182 DT_CHR, // This is a character device. 00183 DT_DIR, // This is a directory. 00184 DT_BLK, // This is a block device. 00185 DT_REG, // This is a regular file. 00186 DT_LNK, // This is a symbolic link. 00187 DT_SOCK, // This is a UNIX domain socket. 00188 }; 00189 00190 00191 #endif /* RETARGET_H */
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