lseek simulator working

runtime/mains/nativevecadd/vx_pocl_main.c

@@ -136,13 +136,28 @@ int main (int argc, char **argv) {
 
   printf("\n\n******** Fixing fileio START Native Vecadd running ********\n\n");
 
-   FILE *fp;
-   char buff[1024];
 
-   fp = fopen("/home/fares/Desktop/Vortex/simX/reading_data.txt", "r");
+  FILE *f = fopen("/home/fares/Desktop/Vortex/simX/reading_data.txt", "r");
-   // fscanf(fp, "%s %s %s %s", buff);
+  fseek(f, 0, SEEK_END);
-   fgets(buff, 41, (FILE*)fp);
+  int fsize = ftell(f);
-   printf("1 : %s\n", buff );
+  fseek(f, 0, SEEK_SET);  /* same as rewind(f); */
+
+  char *string = (char *) malloc(fsize + 1);
+  fread(string, 1, fsize, f);
+  fclose(f);
+
+  string[fsize] = 0;
+
+  printf("%s", string);
+
+
+   // FILE *fp;
+   // char buff[1024];
+
+   // fp = fopen("/home/fares/Desktop/Vortex/simX/reading_data.txt", "r");
+   // // fscanf(fp, "%s %s %s %s", buff);
+   // fgets(buff, 41, (FILE*)fp);
+   // printf("1 : %s\n", buff );
 
   exit(0);
 

runtime/newlib/newlib.c

@@ -95,7 +95,7 @@ void download(char ** ptr, char * drain)
 
 void _close()
 {
-	vx_print_str("Hello from _close\n");
+	// vx_print_str("Hello from _close\n");
 }
 
 int _fstat(int file, struct stat * st)
@@ -152,12 +152,35 @@ int _isatty (int file)
   return 1;
 }
 
-void _lseek()
+int _lseek(int fd, int offset, int whence)
 {
+	// vx_print_str("Hello from _lseek\n");
+	char * write_buffer = (char *) FILE_IO_WRITE;
+	char * read_buffer  = (char *) FILE_IO_READ;
+
+	int cmd_id = LSEEK;
+
+	upload((char **) &write_buffer, (char *) &cmd_id , sizeof(int));
+	upload((char **) &write_buffer, (char *) &fd     , sizeof(int));
+	upload((char **) &write_buffer, (char *) &offset , sizeof(int));
+	upload((char **) &write_buffer, (char *) &whence , sizeof(int));
+
+
+	trap_to_simulator();
+
+	int retval;
+
+	download((char **) &read_buffer, (char *) &retval);
+
+	return retval;
 
-	vx_print_str("Hello from _lseek\n");
 }
 
+// void _lseek()
+// {
+
+// }
+
 int _read (int file, char *ptr, int len)
 {
 
@@ -250,7 +273,7 @@ void * _sbrk (int nbytes)
 
 void _exit(int val)
 {
-	vx_print_str("Hello from exit\n");
+	// vx_print_str("Hello from exit\n");
 	vx_tmc(0);
 }
 

simX/instruction.cpp

@@ -197,7 +197,20 @@ void trap_to_simulator(Warp & c)
         case (LSEEK):
         {
 
-            cerr << "trap_to_simulator: LSEEK not supported yet\n";
+            // cerr << "trap_to_simulator: LSEEK not supported yet\n";
+            int fd;
+            int offset;
+            int whence;
+
+            download(&read_buffer, (char *) &fd     , c);
+            download(&read_buffer, (char *) &offset , c);
+            download(&read_buffer, (char *) &whence , c);
+
+
+            int retval = lseek(fd, offset, whence);
+
+            upload(&write_buffer, (char *) &retval, sizeof(int), c);
+
         }
         break;
         case (READ):