libnosys_gnu.c

00001 /***********************************************************************
00002  * $Id:: libnosys_gnu.c 1388 2008-12-01 19:20:06Z pdurgesh             $
00003  *
00004  * Project: Linosys function for GNU c compiler
00005  *
00006  * Description:
00007  *     Definitions for OS interface, stub function required by newlibc
00008  * used by Codesourcery GNU compiler.
00009  *
00010  ***********************************************************************
00011  * Software that is described herein is for illustrative purposes only
00012  * which provides customers with programming information regarding the
00013  * products. This software is supplied "AS IS" without any warranties.
00014  * NXP Semiconductors assumes no responsibility or liability for the
00015  * use of the software, conveys no license or title under any patent,
00016  * copyright, or mask work right to the product. NXP Semiconductors
00017  * reserves the right to make changes in the software without
00018  * notification. NXP Semiconductors also make no representation or
00019  * warranty that such application will be suitable for the specified
00020  * use without further testing or modification.
00021  **********************************************************************/
00022 #if defined(__GNUC__)
00023 
00024 #include "lpc_types.h"
00025 #include <errno.h>
00026 #include <sys/times.h>
00027 #include <sys/stat.h>
00028 
00029 /* errno definition */
00030 #undef errno
00031 extern int errno;
00032 
00033 char *__env[1] = { 0 };
00034 char **environ = __env;
00035 
00036 int _close(int file)
00037 {
00038   return -1;
00039 }
00040 
00041 int _execve(char *name, char **argv, char **env)
00042 {
00043   errno = ENOMEM;
00044   return -1;
00045 }
00046 int _exit()
00047 {
00048   return 0;
00049 }
00050 
00051 int _fork()
00052 {
00053   errno = EAGAIN;
00054   return -1;
00055 }
00056 
00057 int _fstat(int file, struct stat *st)
00058 {
00059   st->st_mode = S_IFCHR;
00060   return 0;
00061 }
00062 
00063 int _getpid()
00064 {
00065   return 1;
00066 }
00067 
00068 int _kill(int pid, int sig)
00069 {
00070   errno = EINVAL;
00071   return(-1);
00072 }
00073 
00074 int isatty(int fildes)
00075 {
00076   return 1;
00077 }
00078 int _isatty(int fildes)
00079 {
00080   return 1;
00081 }
00082 
00083 int _link(char *old, char *new)
00084 {
00085   errno = EMLINK;
00086   return -1;
00087 }
00088 
00089 int _lseek(int file, int ptr, int dir)
00090 {
00091   return 0;
00092 }
00093 
00094 int _open(const char *name, int flags, int mode)
00095 {
00096   return -1;
00097 }
00098 
00099 int _read(int file, char *ptr, int len)
00100 {
00101   return 0;
00102 }
00103 
00104 caddr_t _sbrk(int incr)
00105 {
00106   extern char estack;       /* Defined by the linker */
00107   static char *heap_end;
00108   char *prev_heap_end;
00109 
00110   if (heap_end == 0)
00111   {
00112     heap_end = &estack;
00113     /* give 16KB area for stacks and use the rest of memory for heap*/
00114     heap_end += 0x4000;
00115   }
00116   prev_heap_end = heap_end;
00117 
00118   heap_end += incr;
00119   return (caddr_t) prev_heap_end;
00120 }
00121 
00122 int _stat(char *file, struct stat *st)
00123 {
00124   st->st_mode = S_IFCHR;
00125   return 0;
00126 }
00127 int _times(struct tms *buf)
00128 {
00129   return -1;
00130 }
00131 
00132 int _unlink(char *name)
00133 {
00134   errno = ENOENT;
00135   return -1;
00136 }
00137 
00138 int _wait(int *status)
00139 {
00140   errno = ECHILD;
00141   return -1;
00142 }
00143 
00144 int _write(int file, char *ptr, int len)
00145 {
00146   return 0;
00147 }
00148 
00149 #endif /*__GNUC__*/