Changeset 694

Timestamp:

May 17, 2014, 11:59:53 AM (11 years ago)

Author:

cfuguet

Message:

tsar_boot:

• Displaying Data Bad Virtual Address when exception during preloader.

Location:

trunk/softs/tsar_boot/src

Files:

• reset.S (modified) (1 diff)
• reset_elf_loader.c (modified) (1 diff)
• reset_exception.c (modified) (2 diffs)
• sdcard.c (modified) (1 diff)

trunk/softs/tsar_boot/src/reset.S

@@ -230 +230 @@
     mfc0    a1, CP0_CAUSE           /* second arg is cause                */
     mfc0    a2, CP0_EPC             /* third argc is epc                  */
+    mfc2    a3, CP2_DBVAR           /* fourth argc is dbvar               */
     nop
     j       handle_except

trunk/softs/tsar_boot/src/reset_elf_loader.c

@@ -39 +39 @@
     Elf32_Phdr      elf_pht[PHDR_ARRAY_SIZE];
 
-    unsigned char * buffer_ptr;
+    unsigned char * buffer_ptr = 0;
     Elf32_Ehdr    * elf_ehdr_ptr;
     Elf32_Phdr    * elf_phdr_ptr;

trunk/softs/tsar_boot/src/reset_exception.c

@@ -9 +9 @@
 #include <reset_tty.h>
 
-void handle_except(int status, int cause, int epc)
+void handle_except(int status, int cause, int epc, int dbvar)
 {
         reset_puts("\n[RESET] exception handler called: \r\n    status ");
@@ -19 +19 @@
         reset_puts(")\r\n    epc    ");
         reset_putx(epc);
+        reset_puts("\r\n    dbvar  ");
+        reset_putx(dbvar);
         reset_puts("\r\n");
         while (1);

trunk/softs/tsar_boot/src/sdcard.c

@@ -107 +107 @@
  * \param   sdcard  : Initialized pointer to block device
  * \param   index   : SD card CMD index
- * \param   app     : Type of command, 0 for normal command or 1 for application specific
+ * \param   app     : Type of command, 0 for normal command or 1 for application 
+ *                    specific
  * \param   args    : SD card CMD arguments
  *