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 */