diff --git a/ChangeLog b/ChangeLog
index c5e9f17c07126316ca6aeeaa58df6d24d2629c83..d2b64ea0d0efa2814aa2536417f3e10ec6467ac2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -35,6 +35,7 @@
0.1.2 2007-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
* Add dirent.h, opendir(), readdir(), closedir(), etc.
+ * Add strerror()
* Added 'ls' command to nsh
* Added C5471 watchdog driver
* Added support for the Neuros OSD / DM320
diff --git a/Documentation/NuttX.html b/Documentation/NuttX.html
index 5db2ce4e0861592c9f399b37765c30809ad29ac7..3f80f7bbad16a15044e4a498d0d2625818574cc5 100644
--- a/Documentation/NuttX.html
+++ b/Documentation/NuttX.html
@@ -396,6 +396,7 @@ Other memory:
0.1.2 2007-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
* Add dirent.h, opendir(), readdir(), closedir(), etc.
+ * Add strerror()
* Added 'ls' command to nsh
* Added C5471 watchdog driver
* Added support for the Neuros OSD / DM320
diff --git a/include/errno.h b/include/errno.h
index 6f362cfc90ec8dbc8c5c7a9b6012ac22400bd5aa..1291a2cffc97d37ff6100e44182029cf5c2e264e 100644
--- a/include/errno.h
+++ b/include/errno.h
@@ -1,4 +1,4 @@
-/************************************************************
+/************************************************************************
* errno.h
*
* Copyright (C) 2007 Gregory Nutt. All rights reserved.
@@ -31,154 +31,277 @@
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
- ************************************************************/
+ ************************************************************************/
#ifndef __ERRNO_H
#define __ERRNO_H
-/************************************************************
+/************************************************************************
* Included Files
- ************************************************************/
+ ************************************************************************/
-/************************************************************
+/************************************************************************
* Definitions
- ************************************************************/
+ ************************************************************************/
-#define EPERM 1 /* Operation not permitted */
-#define ENOENT 2 /* No such file or directory */
-#define ESRCH 3 /* No such process */
-#define EINTR 4 /* Interrupted system call */
-#define EIO 5 /* I/O error */
-#define ENXIO 6 /* No such device or address */
-#define E2BIG 7 /* Arg list too long */
-#define ENOEXEC 8 /* Exec format error */
-#define EBADF 9 /* Bad file number */
-#define ECHILD 10 /* No child processes */
-#define EAGAIN 11 /* Try again */
-#define ENOMEM 12 /* Out of memory */
-#define EACCES 13 /* Permission denied */
-#define EFAULT 14 /* Bad address */
-#define ENOTBLK 15 /* Block device required */
-#define EBUSY 16 /* Device or resource busy */
-#define EEXIST 17 /* File exists */
-#define EXDEV 18 /* Cross-device link */
-#define ENODEV 19 /* No such device */
-#define ENOTDIR 20 /* Not a directory */
-#define EISDIR 21 /* Is a directory */
-#define EINVAL 22 /* Invalid argument */
-#define ENFILE 23 /* File table overflow */
-#define EMFILE 24 /* Too many open files */
-#define ENOTTY 25 /* Not a typewriter */
-#define ETXTBSY 26 /* Text file busy */
-#define EFBIG 27 /* File too large */
-#define ENOSPC 28 /* No space left on device */
-#define ESPIPE 29 /* Illegal seek */
-#define EROFS 30 /* Read-only file system */
-#define EMLINK 31 /* Too many links */
-#define EPIPE 32 /* Broken pipe */
-#define EDOM 33 /* Math argument out of domain of func */
-#define ERANGE 34 /* Math result not representable */
-#define EDEADLK 35 /* Resource deadlock would occur */
-#define ENAMETOOLONG 36 /* File name too long */
-#define ENOLCK 37 /* No record locks available */
-#define ENOSYS 38 /* Function not implemented */
-#define ENOTEMPTY 39 /* Directory not empty */
-#define ELOOP 40 /* Too many symbolic links encountered */
-#define EWOULDBLOCK EAGAIN /* Operation would block */
-#define ENOMSG 42 /* No message of desired type */
-#define EIDRM 43 /* Identifier removed */
-#define ECHRNG 44 /* Channel number out of range */
-#define EL2NSYNC 45 /* Level 2 not synchronized */
-#define EL3HLT 46 /* Level 3 halted */
-#define EL3RST 47 /* Level 3 reset */
-#define ELNRNG 48 /* Link number out of range */
-#define EUNATCH 49 /* Protocol driver not attached */
-#define ENOCSI 50 /* No CSI structure available */
-#define EL2HLT 51 /* Level 2 halted */
-#define EBADE 52 /* Invalid exchange */
-#define EBADR 53 /* Invalid request descriptor */
-#define EXFULL 54 /* Exchange full */
-#define ENOANO 55 /* No anode */
-#define EBADRQC 56 /* Invalid request code */
-#define EBADSLT 57 /* Invalid slot */
+/* Definitions of error numbers and the string that would be
+ * returned by strerror().
+ */
-#define EDEADLOCK EDEADLK
+#define EPERM 1
+#define EPERM_STR "Operation not permitted"
+#define ENOENT 2
+#define ENOENT_STR "No such file or directory"
+#define ESRCH 3
+#define ESRCH_STR "No such process"
+#define EINTR 4
+#define EINTR_STR "Interrupted system call"
+#define EIO 5
+#define EIO_STR "I/O error"
+#define ENXIO 6
+#define ENXIO_STR "No such device or address"
+#define E2BIG 7
+#define E2BIG_STR "Arg list too long"
+#define ENOEXEC 8
+#define ENOEXEC_STR "Exec format error"
+#define EBADF 9
+#define EBADF_STR "Bad file number"
+#define ECHILD 10
+#define ECHILD_STR "No child processes"
+#define EAGAIN 11
+#define EWOULDBLOCK EAGAIN
+#define EAGAIN_STR "Try again"
+#define ENOMEM 12
+#define ENOMEM_STR "Out of memory"
+#define EACCES 13
+#define EACCES_STR "Permission denied"
+#define EFAULT 14
+#define EFAULT_STR "Bad address"
+#define ENOTBLK 15
+#define ENOTBLK_STR "Block device required"
+#define EBUSY 16
+#define EBUSY_STR "Device or resource busy"
+#define EEXIST 17
+#define EEXIST_STR "File exists"
+#define EXDEV 18
+#define EXDEV_STR "Cross-device link"
+#define ENODEV 19
+#define ENODEV_STR "No such device"
+#define ENOTDIR 20
+#define ENOTDIR_STR "Not a directory"
+#define EISDIR 21
+#define EISDIR_STR "Is a directory"
+#define EINVAL 22
+#define EINVAL_STR "Invalid argument"
+#define ENFILE 23
+#define ENFILE_STR "File table overflow"
+#define EMFILE 24
+#define EMFILE_STR "Too many open files"
+#define ENOTTY 25
+#define ENOTTY_STR "Not a typewriter"
+#define ETXTBSY 26
+#define ETXTBSY_STR "Text file busy"
+#define EFBIG 27
+#define EFBIG_STR "File too large"
+#define ENOSPC 28
+#define ENOSPC_STR "No space left on device"
+#define ESPIPE 29
+#define ESPIPE_STR "Illegal seek"
+#define EROFS 30
+#define EROFS_STR "Read-only file system"
+#define EMLINK 31
+#define EMLINK_STR "Too many links"
+#define EPIPE 32
+#define EPIPE_STR "Broken pipe"
+#define EDOM 33
+#define EDOM_STR "Math argument out of domain of func"
+#define ERANGE 34
+#define ERANGE_STR "Math result not representable"
+#define EDEADLK 35
+#define EDEADLOCK EDEADLK
+#define EDEADLK_STR "Resource deadlock would occur"
+#define ENAMETOOLONG 36
+#define ENAMETOOLONG_STR "File name too long"
+#define ENOLCK 37
+#define ENOLCK_STR "No record locks available"
+#define ENOSYS 38
+#define ENOSYS_STR "Function not implemented"
+#define ENOTEMPTY 39
+#define ENOTEMPTY_STR "Directory not empty"
+#define ELOOP 40
+#define ELOOP_STR "Too many symbolic links encountered"
+#define ENOMSG 42
+#define ENOMSG_STR "No message of desired type"
+#define EIDRM 43
+#define EIDRM_STR "Identifier removed"
+#define ECHRNG 44
+#define ECHRNG_STR "Channel number out of range"
+#define EL2NSYNC 45
+#define EL2NSYNC_STR "Level 2 not synchronized"
+#define EL3HLT 46
+#define EL3HLT_STR "Level 3 halted"
+#define EL3RST 47
+#define EL3RST_STR "Level 3 reset"
+#define ELNRNG 48
+#define ELNRNG_STR "Link number out of range"
+#define EUNATCH 49
+#define EUNATCH_STR "Protocol driver not attached"
+#define ENOCSI 50
+#define ENOCSI_STR "No CSI structure available"
+#define EL2HLT 51
+#define EL2HLT_STR "Level 2 halted"
+#define EBADE 52
+#define EBADE_STR "Invalid exchange"
+#define EBADR 53
+#define EBADR_STR "Invalid request descriptor"
+#define EXFULL 54
+#define EXFULL_STR "Exchange full"
+#define ENOANO 55
+#define ENOANO_STR "No anode"
+#define EBADRQC 56
+#define EBADRQC_STR "Invalid request code"
+#define EBADSLT 57
+#define EBADSLT_STR "Invalid slot"
+#define EBFONT 59
+#define EBFONT_STR "Bad font file format"
+#define ENOSTR 60
+#define ENOSTR_STR "Device not a stream"
+#define ENODATA 61
+#define ENODATA_STR "No data available"
+#define ETIME 62
+#define ETIME_STR "Timer expired"
+#define ENOSR 63
+#define ENOSR_STR "Out of streams resources"
+#define ENONET 64
+#define ENONET_STR "Machine is not on the network"
+#define ENOPKG 65
+#define ENOPKG_STR "Package not installed"
+#define EREMOTE 66
+#define EREMOTE_STR "Object is remote"
+#define ENOLINK 67
+#define ENOLINK_STR "Link has been severed"
+#define EADV 68
+#define EADV_STR "Advertise error"
+#define ESRMNT 69
+#define ESRMNT_STR "Srmount error"
+#define ECOMM 70
+#define ECOMM_STR "Communication error on send"
+#define EPROTO 71
+#define EPROTO_STR "Protocol error"
+#define EMULTIHOP 72
+#define EMULTIHOP_STR "Multihop attempted"
+#define EDOTDOT 73
+#define EDOTDOT_STR "RFS specific error"
+#define EBADMSG 74
+#define EBADMSG_STR "Not a data message"
+#define EOVERFLOW 75
+#define EOVERFLOW_STR "Value too large for defined data type"
+#define ENOTUNIQ 76
+#define ENOTUNIQ_STR "Name not unique on network"
+#define EBADFD 77
+#define EBADFD_STR "File descriptor in bad state"
+#define EREMCHG 78
+#define EREMCHG_STR "Remote address changed"
+#define ELIBACC 79
+#define ELIBACC_STR "Can not access a needed shared library"
+#define ELIBBAD 80
+#define ELIBBAD_STR "Accessing a corrupted shared library"
+#define ELIBSCN 81
+#define ELIBSCN_STR ".lib section in a.out corrupted"
+#define ELIBMAX 82
+#define ELIBMAX_STR "Attempting to link in too many shared libraries"
+#define ELIBEXEC 83
+#define ELIBEXEC_STR "Cannot exec a shared library directly"
+#define EILSEQ 84
+#define EILSEQ_STR "Illegal byte sequence"
+#define ERESTART 85
+#define ERESTART_STR "Interrupted system call should be restarted"
+#define ESTRPIPE 86
+#define ESTRPIPE_STR "Streams pipe error"
+#define EUSERS 87
+#define EUSERS_STR "Too many users"
+#define ENOTSOCK 88
+#define ENOTSOCK_STR "Socket operation on non-socket"
+#define EDESTADDRREQ 89
+#define EDESTADDRREQ_STR "Destination address required"
+#define EMSGSIZE 90
+#define EMSGSIZE_STR "Message too long"
+#define EPROTOTYPE 91
+#define EPROTOTYPE_STR "Protocol wrong type for socket"
+#define ENOPROTOOPT 92
+#define ENOPROTOOPT_STR "Protocol not available"
+#define EPROTONOSUPPORT 93
+#define EPROTONOSUPPORT_STR "Protocol not supported"
+#define ESOCKTNOSUPPORT 94
+#define ESOCKTNOSUPPORT_STR "Socket type not supported"
+#define EOPNOTSUPP 95
+#define EOPNOTSUPP_STR "Operation not supported on transport endpoint"
+#define EPFNOSUPPORT 96
+#define EPFNOSUPPORT_STR "Protocol family not supported"
+#define EAFNOSUPPORT 97
+#define EAFNOSUPPORT_STR "Address family not supported by protocol"
+#define EADDRINUSE 98
+#define EADDRINUSE_STR "Address already in use"
+#define EADDRNOTAVAIL 99
+#define EADDRNOTAVAIL_STR "Cannot assign requested address"
+#define ENETDOWN 100
+#define ENETDOWN_STR "Network is down"
+#define ENETUNREACH 101
+#define ENETUNREACH_STR "Network is unreachable"
+#define ENETRESET 102
+#define ENETRESET_STR "Network dropped connection because of reset"
+#define ECONNABORTED 103
+#define ECONNABORTED_STR "Software caused connection abort"
+#define ECONNRESET 104
+#define ECONNRESET_STR "Connection reset by peer"
+#define ENOBUFS 105
+#define ENOBUFS_STR "No buffer space available"
+#define EISCONN 106
+#define EISCONN_STR "Transport endpoint is already connected"
+#define ENOTCONN 107
+#define ENOTCONN_STR "Transport endpoint is not connected"
+#define ESHUTDOWN 108
+#define ESHUTDOWN_STR "Cannot send after transport endpoint shutdown"
+#define ETOOMANYREFS 109
+#define ETOOMANYREFS_STR "Too many references: cannot splice"
+#define ETIMEDOUT 110
+#define ETIMEDOUT_STR "Connection timed out"
+#define ECONNREFUSED 111
+#define ECONNREFUSED_STR "Connection refused"
+#define EHOSTDOWN 112
+#define EHOSTDOWN_STR "Host is down"
+#define EHOSTUNREACH 113
+#define EHOSTUNREACH_STR "No route to host"
+#define EALREADY 114
+#define EALREADY_STR "Operation already in progress"
+#define EINPROGRESS 115
+#define EINPROGRESS_STR "Operation now in progress"
+#define ESTALE 116
+#define ESTALE_STR "Stale NFS file handle"
+#define EUCLEAN 117
+#define EUCLEAN_STR "Structure needs cleaning"
+#define ENOTNAM 118
+#define ENOTNAM_STR "Not a XENIX named type file"
+#define ENAVAIL 119
+#define ENAVAIL_STR "No XENIX semaphores available"
+#define EISNAM 120
+#define EISNAM_STR "Is a named type file"
+#define EREMOTEIO 121
+#define EREMOTEIO_STR "Remote I/O error"
+#define EDQUOT 122
+#define EDQUOT_STR "Quota exceeded"
+#define ENOMEDIUM 123
+#define ENOMEDIUM_STR "No medium found"
+#define EMEDIUMTYPE 124
+#define EMEDIUMTYPE_STR "Wrong medium type"
-#define EBFONT 59 /* Bad font file format */
-#define ENOSTR 60 /* Device not a stream */
-#define ENODATA 61 /* No data available */
-#define ETIME 62 /* Timer expired */
-#define ENOSR 63 /* Out of streams resources */
-#define ENONET 64 /* Machine is not on the network */
-#define ENOPKG 65 /* Package not installed */
-#define EREMOTE 66 /* Object is remote */
-#define ENOLINK 67 /* Link has been severed */
-#define EADV 68 /* Advertise error */
-#define ESRMNT 69 /* Srmount error */
-#define ECOMM 70 /* Communication error on send */
-#define EPROTO 71 /* Protocol error */
-#define EMULTIHOP 72 /* Multihop attempted */
-#define EDOTDOT 73 /* RFS specific error */
-#define EBADMSG 74 /* Not a data message */
-#define EOVERFLOW 75 /* Value too large for defined data type */
-#define ENOTUNIQ 76 /* Name not unique on network */
-#define EBADFD 77 /* File descriptor in bad state */
-#define EREMCHG 78 /* Remote address changed */
-#define ELIBACC 79 /* Can not access a needed shared library */
-#define ELIBBAD 80 /* Accessing a corrupted shared library */
-#define ELIBSCN 81 /* .lib section in a.out corrupted */
-#define ELIBMAX 82 /* Attempting to link in too many shared libraries */
-#define ELIBEXEC 83 /* Cannot exec a shared library directly */
-#define EILSEQ 84 /* Illegal byte sequence */
-#define ERESTART 85 /* Interrupted system call should be restarted */
-#define ESTRPIPE 86 /* Streams pipe error */
-#define EUSERS 87 /* Too many users */
-#define ENOTSOCK 88 /* Socket operation on non-socket */
-#define EDESTADDRREQ 89 /* Destination address required */
-#define EMSGSIZE 90 /* Message too long */
-#define EPROTOTYPE 91 /* Protocol wrong type for socket */
-#define ENOPROTOOPT 92 /* Protocol not available */
-#define EPROTONOSUPPORT 93 /* Protocol not supported */
-#define ESOCKTNOSUPPORT 94 /* Socket type not supported */
-#define EOPNOTSUPP 95 /* Operation not supported on transport endpoint */
-#define EPFNOSUPPORT 96 /* Protocol family not supported */
-#define EAFNOSUPPORT 97 /* Address family not supported by protocol */
-#define EADDRINUSE 98 /* Address already in use */
-#define EADDRNOTAVAIL 99 /* Cannot assign requested address */
-#define ENETDOWN 100 /* Network is down */
-#define ENETUNREACH 101 /* Network is unreachable */
-#define ENETRESET 102 /* Network dropped connection because of reset */
-#define ECONNABORTED 103 /* Software caused connection abort */
-#define ECONNRESET 104 /* Connection reset by peer */
-#define ENOBUFS 105 /* No buffer space available */
-#define EISCONN 106 /* Transport endpoint is already connected */
-#define ENOTCONN 107 /* Transport endpoint is not connected */
-#define ESHUTDOWN 108 /* Cannot send after transport endpoint shutdown */
-#define ETOOMANYREFS 109 /* Too many references: cannot splice */
-#define ETIMEDOUT 110 /* Connection timed out */
-#define ECONNREFUSED 111 /* Connection refused */
-#define EHOSTDOWN 112 /* Host is down */
-#define EHOSTUNREACH 113 /* No route to host */
-#define EALREADY 114 /* Operation already in progress */
-#define EINPROGRESS 115 /* Operation now in progress */
-#define ESTALE 116 /* Stale NFS file handle */
-#define EUCLEAN 117 /* Structure needs cleaning */
-#define ENOTNAM 118 /* Not a XENIX named type file */
-#define ENAVAIL 119 /* No XENIX semaphores available */
-#define EISNAM 120 /* Is a named type file */
-#define EREMOTEIO 121 /* Remote I/O error */
-#define EDQUOT 122 /* Quota exceeded */
-
-#define ENOMEDIUM 123 /* No medium found */
-#define EMEDIUMTYPE 124 /* Wrong medium type */
-
-/************************************************************
+/************************************************************************
* Type Declarations
- ************************************************************/
+ ************************************************************************/
-/************************************************************
+/************************************************************************
* Global Function Prototypes
- ************************************************************/
+ ************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
diff --git a/include/string.h b/include/string.h
index 38163eb0302ee0a67f83f11b1c74f141b14d891c..84c17cc39fb03d8b9a6c18d2f52b81d9b066b579 100644
--- a/include/string.h
+++ b/include/string.h
@@ -61,7 +61,7 @@ extern "C" {
EXTERN char *strchr(const char *s, int c);
EXTERN FAR char *strdup(const char *s);
-EXTERN char *strerror(int);
+EXTERN const char *strerror(int);
EXTERN size_t strlen(const char *);
EXTERN char *strncat(char *, const char *, size_t);
EXTERN int strcmp(const char *, const char *);
diff --git a/lib/Makefile b/lib/Makefile
index 6d89ccaef7e94849a81f1fddd92fc6578782ef3e..a861d43a7141e797d27a0f539b5bb44ca1a238c0 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -44,7 +44,7 @@ MISC_SRCS = lib_init.c lib_streamsem.c lib_filesem.c
STRING_SRCS = lib_memset.c lib_memcpy.c lib_memcmp.c lib_memmove.c \
lib_strcpy.c lib_strncpy.c lib_strcmp.c \
lib_strlen.c lib_strdup.c lib_strtol.c lib_strchr.c \
- lib_strtok.c lib_strtokr.c
+ lib_strtok.c lib_strtokr.c lib_strerror.c
CTYPE_SRCS =
STDIO_SRCS = lib_fopen.c lib_fclose.c \
lib_fread.c lib_libfread.c lib_fgetc.c lib_fgets.c lib_gets.c \
diff --git a/lib/lib_strerror.c b/lib/lib_strerror.c
new file mode 100644
index 0000000000000000000000000000000000000000..994af8d5bb08c6a3a395dfa75d4038ee788f5b8e
--- /dev/null
+++ b/lib/lib_strerror.c
@@ -0,0 +1,236 @@
+/************************************************************************
+ * lib_strerror.c
+ *
+ * Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name Gregory Nutt nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************/
+
+/************************************************************************
+ * Included Files
+ ************************************************************************/
+
+#include <nuttx/config.h>
+#include <sys/types.h>
+#include <string.h>
+#include <errno.h>
+
+/************************************************************************
+ * Definitions
+ ************************************************************************/
+
+/************************************************************************
+ * Private Types
+ ************************************************************************/
+
+struct errno_strmap_s
+{
+ ubyte errnum;
+ const char *str;
+};
+
+/************************************************************************
+ * Private Data
+ ************************************************************************/
+
+/* This table maps all error numbers to descriptive strings.
+ * The only assumption that the code makes with regard to this
+ * this table is that it is order by error number.
+ *
+ * The size of this table is quite large. Its size can be
+ * reduced by eliminating some of the more obscure error
+ * strings.
+ */
+
+struct errno_strmap_s g_errnomap[] =
+{
+ { EPERM, EPERM_STR },
+ { ENOENT, ENOENT_STR },
+ { ESRCH, ESRCH_STR },
+ { EINTR, EINTR_STR },
+ { EIO, EIO_STR },
+ { ENXIO, ENXIO_STR },
+ { E2BIG, E2BIG_STR },
+ { ENOEXEC, ENOEXEC_STR },
+ { EBADF, EBADF_STR },
+ { ECHILD, ECHILD_STR },
+ { EAGAIN, EAGAIN_STR },
+ { ENOMEM, ENOMEM_STR },
+ { EACCES, EACCES_STR },
+ { EFAULT, EFAULT_STR },
+ { ENOTBLK, ENOTBLK_STR },
+ { EBUSY, EBUSY_STR },
+ { EEXIST, EEXIST_STR },
+ { EXDEV, EXDEV_STR },
+ { ENODEV, ENODEV_STR },
+ { ENOTDIR, ENOTDIR_STR },
+ { EISDIR, EISDIR_STR },
+ { EINVAL, EINVAL_STR },
+ { ENFILE, ENFILE_STR },
+ { EMFILE, EMFILE_STR },
+ { ENOTTY, ENOTTY_STR },
+ { ETXTBSY, ETXTBSY_STR },
+ { EFBIG, EFBIG_STR },
+ { ENOSPC, ENOSPC_STR },
+ { ESPIPE, ESPIPE_STR },
+ { EROFS, EROFS_STR },
+ { EMLINK, EMLINK_STR },
+ { EPIPE, EPIPE_STR },
+ { EDOM, EDOM_STR },
+ { ERANGE, ERANGE_STR },
+ { EDEADLK, EDEADLK_STR },
+ { ENAMETOOLONG, ENAMETOOLONG_STR },
+ { ENOLCK, ENOLCK_STR },
+ { ENOSYS, ENOSYS_STR },
+ { ENOTEMPTY, ENOTEMPTY_STR },
+ { ELOOP, ELOOP_STR },
+ { ENOMSG, ENOMSG_STR },
+ { EIDRM, EIDRM_STR },
+ { ECHRNG, ECHRNG_STR },
+ { EL2NSYNC, EL2NSYNC_STR },
+ { EL3HLT, EL3HLT_STR },
+ { EL3RST, EL3RST_STR },
+ { ELNRNG, ELNRNG_STR },
+ { EUNATCH, EUNATCH_STR },
+ { ENOCSI, ENOCSI_STR },
+ { EL2HLT, EL2HLT_STR },
+ { EBADE, EBADE_STR },
+ { EBADR, EBADR_STR },
+ { EXFULL, EXFULL_STR },
+ { ENOANO, ENOANO_STR },
+ { EBADRQC, EBADRQC_STR },
+ { EBADSLT, EBADSLT_STR },
+ { EBFONT, EBFONT_STR },
+ { ENOSTR, ENOSTR_STR },
+ { ENODATA, ENODATA_STR },
+ { ETIME, ETIME_STR },
+ { ENOSR, ENOSR_STR },
+ { ENONET, ENONET_STR },
+ { ENOPKG, ENOPKG_STR },
+ { EREMOTE, EREMOTE_STR },
+ { ENOLINK, ENOLINK_STR },
+ { EADV, EADV_STR },
+ { ESRMNT, ESRMNT_STR },
+ { ECOMM, ECOMM_STR },
+ { EPROTO, EPROTO_STR },
+ { EMULTIHOP, EMULTIHOP_STR },
+ { EDOTDOT, EDOTDOT_STR },
+ { EBADMSG, EBADMSG_STR },
+ { EOVERFLOW, EOVERFLOW_STR },
+ { ENOTUNIQ, ENOTUNIQ_STR },
+ { EBADFD, EBADFD_STR },
+ { EREMCHG, EREMCHG_STR },
+ { ELIBACC, ELIBACC_STR },
+ { ELIBBAD, ELIBBAD_STR },
+ { ELIBSCN, ELIBSCN_STR },
+ { ELIBMAX, ELIBMAX_STR },
+ { ELIBEXEC, ELIBEXEC_STR },
+ { EILSEQ, EILSEQ_STR },
+ { ERESTART, ERESTART_STR },
+ { ESTRPIPE, ESTRPIPE_STR },
+ { EUSERS, EUSERS_STR },
+ { ENOTSOCK, ENOTSOCK_STR },
+ { EDESTADDRREQ, EDESTADDRREQ_STR },
+ { EMSGSIZE, EMSGSIZE_STR },
+ { EPROTOTYPE, EPROTOTYPE_STR },
+ { ENOPROTOOPT, ENOPROTOOPT_STR },
+ { EPROTONOSUPPORT, EPROTONOSUPPORT_STR },
+ { ESOCKTNOSUPPORT, ESOCKTNOSUPPORT_STR },
+ { EOPNOTSUPP, EOPNOTSUPP_STR },
+ { EPFNOSUPPORT, EPFNOSUPPORT_STR },
+ { EAFNOSUPPORT, EAFNOSUPPORT_STR },
+ { EADDRINUSE, EADDRINUSE_STR },
+ { EADDRNOTAVAIL, EADDRNOTAVAIL_STR },
+ { ENETDOWN, ENETDOWN_STR },
+ { ENETUNREACH, ENETUNREACH_STR },
+ { ENETRESET, ENETRESET_STR },
+ { ECONNABORTED, ECONNABORTED_STR },
+ { ECONNRESET, ECONNRESET_STR },
+ { ENOBUFS, ENOBUFS_STR },
+ { EISCONN, EISCONN_STR },
+ { ENOTCONN, ENOTCONN_STR },
+ { ESHUTDOWN, ESHUTDOWN_STR },
+ { ETOOMANYREFS, ETOOMANYREFS_STR },
+ { ETIMEDOUT, ETIMEDOUT_STR },
+ { ECONNREFUSED, ECONNREFUSED_STR },
+ { EHOSTDOWN, EHOSTDOWN_STR },
+ { EHOSTUNREACH, EHOSTUNREACH_STR },
+ { EALREADY, EALREADY_STR },
+ { EINPROGRESS, EINPROGRESS_STR },
+ { ESTALE, ESTALE_STR },
+ { EUCLEAN, EUCLEAN_STR },
+ { ENOTNAM, ENOTNAM_STR },
+ { ENAVAIL, ENAVAIL_STR },
+ { EISNAM, EISNAM_STR },
+ { EREMOTEIO, EREMOTEIO_STR },
+ { EDQUOT, EDQUOT_STR },
+ { ENOMEDIUM, ENOMEDIUM_STR },
+ { EMEDIUMTYPE, EMEDIUMTYPE_STR }
+};
+
+#define NERRNO_STRS (sizeof(g_errnomap) / sizeof(struct errno_strmap_s))
+
+/************************************************************************
+ * Private Functions
+ ************************************************************************/
+
+/************************************************************************
+ * Public Functions
+ ************************************************************************/
+
+/************************************************************************
+ * Name: strerror
+ ************************************************************************/
+
+const char *strerror(int errnum)
+{
+ int ndxlow = 0;
+ int ndxhi = NERRNO_STRS - 1;
+ int ndxmid;
+
+ do
+ {
+ ndxmid = (ndxlow + ndxhi) >> 1;
+ if (errnum > g_errnomap[ndxmid].errnum)
+ {
+ ndxlow = ndxmid + 1;
+ }
+ else if (errnum < g_errnomap[ndxmid].errnum)
+ {
+ ndxhi = ndxmid - 1;
+ }
+ else
+ {
+ return g_errnomap[ndxmid].str;
+ }
+ }
+ while (ndxlow <= ndxhi);
+ return "Unknown error";
+}
diff --git a/sched/os_start.c b/sched/os_start.c
index 2c5da51a2b9cade9f0da2b305e8ca90fb423fcb8..30a8cb5873978a8f2eca0edc4d7b9731f35c3d97 100644
--- a/sched/os_start.c
+++ b/sched/os_start.c
@@ -264,7 +264,7 @@ void os_start(void)
/* Then add the idle task's TCB to the head of the ready to run list */
- dq_addfirst((FAR dq_entry_t*)&g_idletcb, &g_readytorun);
+ dq_addfirst((FAR dq_entry_t*)&g_idletcb, (dq_queue_t*)&g_readytorun);
/* Initialize the processor-specific portion of the TCB */
@@ -435,7 +435,7 @@ void os_start(void)
/* Remove the first delayed deallocation. */
irqstate_t saved_state = irqsave();
- void *address = (void*)sq_remfirst(&g_delayeddeallocations);
+ void *address = (void*)sq_remfirst((sq_queue_t*)&g_delayeddeallocations);
irqrestore(saved_state);
/* Then deallocate it */