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Diff: platform/mbed_retarget.h
- Revision:
- 160:d5399cc887bb
- Child:
- 161:2cc1468da177
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/platform/mbed_retarget.h Tue Mar 14 16:40:56 2017 +0000 @@ -0,0 +1,185 @@ +/* + * 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 + +#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 Dir; } +typedef mbed::Dir DIR; + +extern "C" { + 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); +}; +#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. */ +#ifdef ENOENT +#undef ENOENT +#endif +#define ENOENT 2 /* No such file or directory. */ + +#ifdef EIO +#undef EIO +#endif +#define EIO 5 /* I/O error */ + +#ifdef ENXIO +#undef ENXIO +#endif +#define ENXIO 6 /* No such device or address */ + +#ifdef ENOEXEC +#undef ENOEXEC +#endif +#define ENOEXEC 8 /* Exec format error */ + +#ifdef EBADF +#undef EBADF +#endif +#define EBADF 9 /* Bad file number */ + +#ifdef ENOMEM +#undef ENOMEM +#endif +#define ENOMEM 12 /* Not enough space */ + +#ifdef EACCES +#undef EACCES +#endif +#define EACCES 13 /* Permission denied */ + +#ifdef EFAULT +#undef EFAULT +#endif +#define EFAULT 14 /* Bad address */ + +#ifdef EEXIST +#undef EEXIST +#endif +#define EEXIST 17 /* File exists */ + +#ifdef EINVAL +#undef EINVAL +#endif +#define EINVAL 22 /* Invalid argument */ + +#ifdef ENFILE +#undef ENFILE +#endif +#define ENFILE 23 /* Too many open files in system */ + +#ifdef EMFILE +#undef EMFILE +#endif +#define EMFILE 24 /* File descriptor value too large */ + +#ifdef ENOSYS +#undef ENOSYS +#endif +#define ENOSYS 38 /* Function not implemented */ + +/* 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 */