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platform/mbed_retarget.h
- Committer:
- thedo
- Date:
- 2017-06-29
- Revision:
- 167:1657b442184c
File content as of revision 167:1657b442184c:
/* * mbed Microcontroller Library * Copyright (c) 2006-2016 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * */ #ifndef RETARGET_H #define RETARGET_H #if __cplusplus #include <cstdio> #endif //__cplusplus #include <stdint.h> #include <stddef.h> /* We can get the following standard types from sys/types for gcc, but we * need to define the types ourselves for the other compilers that normally * target embedded systems */ #if defined(__ARMCC_VERSION) || defined(__ICCARM__) typedef int ssize_t; ///< Signed size type, usually encodes negative errors typedef long off_t; ///< Offset in a data stream typedef int mode_t; ///< Mode for opening files #define O_RDONLY 0 #define O_WRONLY 1 #define O_RDWR 2 #define O_CREAT 0x0200 #define O_TRUNC 0x0400 #define O_APPEND 0x0008 #define NAME_MAX 255 ///< Maximum size of a name in a file path #else #include <sys/fcntl.h> #include <sys/types.h> #include <sys/syslimits.h> #endif /* DIR declarations must also be here */ #if __cplusplus namespace mbed { class FileHandle; class DirHandle; std::FILE *mbed_fdopen(FileHandle *fh, const char *mode); } typedef mbed::DirHandle DIR; #else typedef struct Dir DIR; #endif #if __cplusplus extern "C" { #endif DIR *opendir(const char*); struct dirent *readdir(DIR *); int closedir(DIR*); void rewinddir(DIR*); long telldir(DIR*); void seekdir(DIR*, long); int mkdir(const char *name, mode_t n); #if __cplusplus }; #endif #if defined(__ARMCC_VERSION) || defined(__ICCARM__) /* The intent of this section is to unify the errno error values to match * the POSIX definitions for the GCC_ARM, ARMCC and IAR compilers. This is * necessary because the ARMCC/IAR errno.h, or sys/stat.h are missing some * symbol definitions used by the POSIX filesystem API to return errno codes. * Note also that ARMCC errno.h defines some symbol values differently from * the GCC_ARM/IAR/standard POSIX definitions. The definitions guard against * this and future changes by changing the symbol definition as shown below. */ #undef ENOENT #define ENOENT 2 /* No such file or directory. */ #undef EIO #define EIO 5 /* I/O error */ #undef ENXIO #define ENXIO 6 /* No such device or address */ #undef ENOEXEC #define ENOEXEC 8 /* Exec format error */ #undef EBADF #define EBADF 9 /* Bad file number */ #undef EAGAIN #define EAGAIN 11 /* Resource unavailable, try again */ #undef EWOULDBLOCK #define EWOULDBLOCK EAGAIN /* Operation would block */ #undef ENOMEM #define ENOMEM 12 /* Not enough space */ #undef EACCES #define EACCES 13 /* Permission denied */ #undef EFAULT #define EFAULT 14 /* Bad address */ #undef EEXIST #define EEXIST 17 /* File exists */ #undef EXDEV #define EXDEV 18 /* Cross-device link */ #undef EINVAL #define EINVAL 22 /* Invalid argument */ #undef ENFILE #define ENFILE 23 /* Too many open files in system */ #undef EMFILE #define EMFILE 24 /* File descriptor value too large */ #undef ESPIPE #define ESPIPE 29 /* Invalid seek */ #undef ENOSYS #define ENOSYS 38 /* Function not implemented */ #undef EOVERFLOW #define EOVERFLOW 75 /* Value too large to be stored in data type */ /* Missing stat.h defines. * The following are sys/stat.h definitions not currently present in the ARMCC * errno.h. Note, ARMCC errno.h defines some symbol values differing from * GCC_ARM/IAR/standard POSIX definitions. Guard against this and future * changes by changing the symbol definition for filesystem use. */ #define _IFDIR 0040000 /* directory */ #define _IFREG 0100000 /* regular */ #define S_IFDIR _IFDIR #define S_IFREG _IFREG #define S_IRWXU (S_IRUSR | S_IWUSR | S_IXUSR) #define S_IRUSR 0000400 /* read permission, owner */ #define S_IWUSR 0000200 /* write permission, owner */ #define S_IXUSR 0000100/* execute/search permission, owner */ #define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP) #define S_IRGRP 0000040 /* read permission, group */ #define S_IWGRP 0000020 /* write permission, grougroup */ #define S_IXGRP 0000010/* execute/search permission, group */ #define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH) #define S_IROTH 0000004 /* read permission, other */ #define S_IWOTH 0000002 /* write permission, other */ #define S_IXOTH 0000001/* execute/search permission, other */ #endif /* defined(__ARMCC_VERSION) || defined(__ICCARM__) */ /* The following are dirent.h definitions are declared here to garuntee * consistency where structure may be different with different toolchains */ struct dirent { char d_name[NAME_MAX+1]; uint8_t d_type; }; enum { DT_UNKNOWN, // The file type could not be determined. DT_FIFO, // This is a named pipe (FIFO). DT_CHR, // This is a character device. DT_DIR, // This is a directory. DT_BLK, // This is a block device. DT_REG, // This is a regular file. DT_LNK, // This is a symbolic link. DT_SOCK, // This is a UNIX domain socket. }; #endif /* RETARGET_H */