_write working, _fstat upload/download not working

runtime/fileIo/fileio.c

@@ -1,27 +0,0 @@
-
-#include "fileio.h"
-
-
-void __attribute__ ((section (".FileIO"))) vx_close()
-{
-}
-
-void __attribute__ ((section (".FileIO"))) vx_fstat()
-{
-
-}
-
-void __attribute__ ((section (".FileIO"))) vx_isatty()
-{
-
-}
-
-void __attribute__ ((section (".FileIO"))) vx_read()
-{
-
-}
-
-void __attribute__ ((section (".FileIO"))) vx_write()
-{
-
-}

runtime/fileIo/fileio.h

@@ -3,19 +3,19 @@
 
 #define FILE_IOO
 
-#include <sys/stat.h>
-#include <errno.h>
-#include <stdio.h>
+// #include <sys/stat.h>
+// #include <errno.h>
+// #include <stdio.h>
 
-void vx_close();
+// void vx_close();
 
-void vx_fstat();
+// void vx_fstat();
 
-void vx_isatty();
+// void vx_isatty();
 
-void vx_read();
+// void vx_read();
 
-void vx_write();
+// void vx_write();
 
 
 

runtime/fileIo/fileio.s

@@ -0,0 +1,48 @@
+
+
+# .section .FileIO
+
+# .type vx_close, @function
+# .global vx_close
+# vx_close:
+# 	nop
+# 	ret
+# 	nop
+# 	nop
+
+
+# .type vx_fstat, @function
+# .global vx_fstat
+# vx_fstat:
+# 	nop
+# 	ret
+# 	nop
+# 	nop
+
+# .type vx_isatty, @function
+# .global vx_isatty
+# vx_isatty:
+# 	nop
+# 	ret
+# 	nop
+# 	nop
+
+# .type vx_read, @function
+# .global vx_read
+# vx_read:
+# 	nop
+# 	ret
+# 	nop
+# 	nop
+
+# .type vx_write, @function
+# .global vx_write
+# vx_write:
+# 	nop
+# 	ret
+# 	nop
+# 	nop
+
+
+
+	

runtime/mains/nlTest/Makefile

@@ -13,7 +13,7 @@ VX_INT  = ../../intrinsics/vx_intrinsics.s
 VX_IO   = ../../io/vx_io.s ../../io/vx_io.c
 VX_API  = ../../vx_api/vx_api.c
 VX_TEST = ../../tests/tests.c
-VX_FIO  = ../../fileio/fileio.c
+VX_FIO  = ../../fileio/fileio.s
 
 VX_MAIN = ./vx_nl_main.c
 

runtime/mains/nlTest/linker.ld

@@ -13,7 +13,7 @@ SECTIONS
   . = 0x70000000;
   .FileIO       :
   {
-
+    *(.FileIO)
   }
   . = 0x80000000;
   .text           :

runtime/mains/nlTest/vx_nl_main.c

@@ -24,9 +24,6 @@ int main()
 
 	printf("printf: Newlib Main %d\n", 456);
 
-	vx_close();
-
-
 	return 0;
 }
 

runtime/newlib/newlib.c

@@ -18,11 +18,17 @@
 #define FILE_IO_WRITE 0x71000000
 #define FILE_IO_READ  0x72000000
 
+
+typedef void (*funct_t)(void);
+
+funct_t trap_to_simulator = (funct_t) 0x70000000;
+
 void upload(char ** ptr, char * src, int size)
 {
 	char * drain = *ptr;
 
-	*drain = size;
+	*((int *) drain) = size;
+
 	drain += 4;
 
 
@@ -66,11 +72,29 @@ int _fstat(int file, struct stat * st)
 	upload((char **) &write_buffer, (char *) &cmd_id, sizeof(int));
 	upload((char **) &write_buffer, (char *) &file  , sizeof(int));
 
-	vx_fstat();
+	trap_to_simulator();
 
 	char * read_buffer = (char *) FILE_IO_READ;
 
-	download((char **) &read_buffer, (char *) st);
+	struct stat newSt;
+
+	download((char **) &read_buffer, (char *) &st);
+
+	// st->st_mode = S_IFCHR;
+
+	vx_printf("st_mode: ", st->st_mode);
+	vx_printf("st_dev: ", st->st_dev);
+	vx_printf("st_ino: ", st->st_ino);
+	vx_printf("st_uid: ", st->st_uid);
+	vx_printf("st_gid: ", st->st_gid);
+	vx_printf("st_rdev: ", st->st_rdev);
+	vx_printf("st_size: ", st->st_size);
+	vx_printf("st_blksize: ", st->st_blksize);
+	vx_printf("st_blocks: ", st->st_blocks);
+
+
+	// st->st_mode = newSt.st_mode;
+	return  0;
 }
 
 int _isatty (int file)
@@ -100,11 +124,10 @@ int _write (int file, char *buf, int nbytes)
 
 	upload((char **) &write_buffer, (char *) &cmd_id, sizeof(int));
 	upload((char **) &write_buffer, (char *) &file  , sizeof(int));
-
 	upload((char **) &write_buffer, (char *)  buf  , nbytes);
 
-	vx_write();
 
+	trap_to_simulator();
 
 	// int i;