uses tohost in bsp_write

env/iss/bsp_write.c

@@ -5,12 +5,32 @@
 #include <sys/types.h>
 #include <unistd.h>
 
+#include <string.h>
+
+extern volatile uint32_t tohost;
+
 ssize_t _bsp_write(int fd, const void *ptr, size_t len) {
-  const uint8_t *current = (const uint8_t *)ptr;
+
+  // char string[] = "hello world in bsp_write";
+  // uint32_t payload_1[4] = {64, 0, (uintptr_t)string, strlen(string)};
+  // tohost = (uint32_t)payload_1;
+
+  // const uint32_t *current = (const uint32_t *)ptr;
+
   if (isatty(fd)) {
-    for (size_t jj = 0; jj < len; jj++) {
+    // uint32_t payload[4] = {64, 0, (uint32_t)((uint32_t *)ptr), len};
-      *((uint32_t *)0xFFFF0000) = current[jj];
+    // tohost = (uint32_t)payload;
-    }
+
+    uint64_t payload[4] = {64, 0, (uintptr_t)((uint32_t *)ptr), len};
+    tohost = (uint32_t)payload;
+
+    /*
+    // accoring to my understading this part is used fot uart wrrite for later
+        for (size_t jj = 0; jj < len; jj++) {
+    *((uint32_t *)0xFFFF0000) = current[jj];
+  }
+    */
+
     return len;
   }
 

env/iss/link.lds

@@ -13,6 +13,7 @@ PHDRS
   flash PT_LOAD;
   ram_init PT_LOAD;
   ram PT_NULL;
+
 }
 
 SECTIONS
@@ -123,22 +124,30 @@ SECTIONS
     *(.gnu.linkonce.d.*)
   } >ram AT>flash :ram_init
 
+
+ 
+  .sdata          :
+  {    
+     
+    __SDATA_BEGIN__ = .;
+    *(.sdata .sdata.*)
+    *(.gnu.linkonce.s.*)
+
+  } >ram AT>flash :ram_init
+ 
+
   .srodata        :
   {
+
     PROVIDE( _gp = . + 0x800 );
     *(.srodata.cst16)
     *(.srodata.cst8)
     *(.srodata.cst4)
     *(.srodata.cst2)
     *(.srodata .srodata.*)
+
   } >ram AT>flash :ram_init
 
-  .sdata          :
-  {
-    __SDATA_BEGIN__ = .;
-    *(.sdata .sdata.*)
-    *(.gnu.linkonce.s.*)
-  } >ram AT>flash :ram_init
 
   . = ALIGN(4);
   PROVIDE( _edata = . );
@@ -172,3 +181,4 @@ SECTIONS
   PROVIDE( tohost = 0xfffffff0 );
   PROVIDE( fromhost = 0xfffffff8 );
 }
+

env/tgc_vp

@@ -1 +1 @@
-ehrenberg
+moonlight/

libwrap/sys/puts.c

@@ -6,6 +6,6 @@ extern ssize_t _bsp_write(int, const void *, size_t);
 
 int __wrap_puts(const char *s) {
   int len = strlen(s);
-  return _bsp_write(0, s, len);
+  return _bsp_write(STDOUT_FILENO, s, len);
 }
 weak_under_alias(puts);