HG_REPOSITORIES/LPP/INSTRUMENTATION/libuc2 Files · examples/STM32F4Discovery/TestSpi/syscalls.c

Removed error on fat32 library, seems now to be able navigate among sectors in...

Removed error on fat32 library, seems now to be able navigate among sectors in both directions. Improved SDLCD drawing performances by almost 1000x.

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             syscalls.c
        
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      #include <stdlib.h>

      #include <errno.h>

      #include <string.h>

      #include <sys/stat.h>

      #include <sys/types.h>

      #include <sys/times.h>

      #undef errno

      #ifdef __cplusplus

      extern "C" {

      #endif

      extern int errno;

      char *__env[1] = { 0 };

      char **environ = __env;

      int _exit() 

      {

      	while(1);

      }

      int _close(int file) {

      return -1;

      }

      int _write(int file, char *ptr, int len) {

      int todo;

      for (todo = 0; todo < len; todo++) {

      //outbyte (*ptr++);

      }

      return len;

      }

      int _execve(char *name, char **argv, char **env) {

      errno = ENOMEM;

      return -1;

      }

      int _fork(void) {

      errno = EAGAIN;

      return -1;

      }

      int _fstat(int file, struct stat *st) {

      st->st_mode = S_IFCHR;

      return 0;

      }

      int _getpid(void) {

      return 1;

      }

      int _isatty(int file) {

      return 1;

      }

      int _kill(int pid, int sig) {

      errno = EINVAL;

      return -1;

      }

      int _link(char *old, char *new) {

      errno = EMLINK;

      return -1;

      }

      int _lseek(int file, int ptr, int dir) {

      return 0;

      }

      int _open(const char *name, int flags, int mode) {

      return -1;

      }

      int _read(int file, char *ptr, int len) {

      return 0;

      }

      caddr_t _sbrk(int incr) {

      register char * stack_ptr __asm__ ("sp");

      extern char _end; /* Defined by the linker */

      static char *heap_end;

      char *prev_heap_end;

      if (heap_end == 0) {

      heap_end = &_end;

      }

      prev_heap_end = heap_end;

      if (heap_end + incr > stack_ptr) {

      _write (1, "Heap and stack collision\n", 25);

      abort ();

      }

      heap_end += incr;

      return (caddr_t) prev_heap_end;

      }

      int _stat(char *file, struct stat *st) {

      st->st_mode = S_IFCHR;

      return 0;

      }

      int _times(struct tms *buf) {

      return -1;

      }

      int _unlink(char *name) {

      errno = ENOENT;

      return -1;

      }

      int _wait(int *status) {

      errno = ECHILD;

      return -1;

      }

      #ifdef __cplusplus

      }

      #endif

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				#include <stdlib.h>
				#include <errno.h>
				#include <string.h>
				#include <sys/stat.h>
				#include <sys/types.h>
				#include <sys/times.h>

				#undef errno


				#ifdef __cplusplus
				extern "C" {
				#endif
				extern int errno;

				char *__env[1] = { 0 };
				char **environ = __env;

				int _exit()
				{
				while(1);
				}

				int _close(int file) {
				return -1;
				}

				int _write(int file, char *ptr, int len) {
				int todo;
				for (todo = 0; todo < len; todo++) {
				//outbyte (*ptr++);
				}
				return len;
				}

				int _execve(char name, char argv, char *env) {
				errno = ENOMEM;
				return -1;
				}


				int _fork(void) {
				errno = EAGAIN;
				return -1;
				}

				int _fstat(int file, struct stat *st) {
				st->st_mode = S_IFCHR;
				return 0;
				}


				int _getpid(void) {
				return 1;
				}


				int _isatty(int file) {
				return 1;
				}


				int _kill(int pid, int sig) {
				errno = EINVAL;
				return -1;
				}


				int _link(char old, char new) {
				errno = EMLINK;
				return -1;
				}


				int _lseek(int file, int ptr, int dir) {
				return 0;
				}

				int _open(const char *name, int flags, int mode) {
				return -1;
				}

				int _read(int file, char *ptr, int len) {
				return 0;
				}



				caddr_t _sbrk(int incr) {
				register char * stack_ptr __asm__ ("sp");
				extern char _end; /* Defined by the linker */
				static char *heap_end;
				char *prev_heap_end;
				if (heap_end == 0) {
				heap_end = &_end;
				}
				prev_heap_end = heap_end;
				if (heap_end + incr > stack_ptr) {
				_write (1, "Heap and stack collision\n", 25);
				abort ();
				}
				heap_end += incr;
				return (caddr_t) prev_heap_end;
				}



				int _stat(char file, struct stat st) {
				st->st_mode = S_IFCHR;
				return 0;
				}


				int _times(struct tms *buf) {
				return -1;
				}


				int _unlink(char *name) {
				errno = ENOENT;
				return -1;
				}

				int _wait(int *status) {
				errno = ECHILD;
				return -1;
				}


				#ifdef __cplusplus
				}
				#endif